Auto merge of #141210 - RalfJung:miri-std-doctests, r=saethlin

tools-aux ci runner: also cross-test doctests in Miri

Miri now supports running doctests across different targets. Let's use that to run the std doctests on aarch64-apple-darwin, i686-pc-windows-msvc.

try-job: x86_64-gnu-aux
diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml
new file mode 100644
index 0000000..466672e
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/config.yml
@@ -0,0 +1,4 @@
+contact_links:
+  - name: Questions regarding rust-analyzer
+    url: https://github.com/rust-lang/rust-analyzer/discussions
+    about: Please ask and answer questions here instead of opening an issue
diff --git a/.github/ISSUE_TEMPLATE/critical_nightly_regression.md b/.github/ISSUE_TEMPLATE/critical_nightly_regression.md
index 23c4344..2b44bdc 100644
--- a/.github/ISSUE_TEMPLATE/critical_nightly_regression.md
+++ b/.github/ISSUE_TEMPLATE/critical_nightly_regression.md
@@ -12,5 +12,3 @@
 
 Please try to provide information which will help us to fix the issue faster. Minimal reproducible examples with few dependencies are especially lovely <3.
 -->
-
-This is a serious regression in nightly and it's important to fix it before the next release.
diff --git a/.github/ISSUE_TEMPLATE/question.md b/.github/ISSUE_TEMPLATE/question.md
deleted file mode 100644
index a90ade8..0000000
--- a/.github/ISSUE_TEMPLATE/question.md
+++ /dev/null
@@ -1,8 +0,0 @@
----
-name: Support Question
-about: A question regarding functionality of rust-analyzer.
-title: ''
-labels: 'C-support'
-assignees: ''
-
----
diff --git a/.github/workflows/metrics.yaml b/.github/workflows/metrics.yaml
index a4146d6..dc2f432 100644
--- a/.github/workflows/metrics.yaml
+++ b/.github/workflows/metrics.yaml
@@ -18,9 +18,9 @@
     steps:
       - name: Install Rust toolchain
         run: |
-          rustup update --no-self-update stable
-          rustup default stable
-          rustup component add --toolchain stable rust-src
+          rustup update --no-self-update beta
+          rustup default beta
+          rustup component add --toolchain beta rust-src
 
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -61,9 +61,9 @@
     steps:
       - name: Install Rust toolchain
         run: |
-          rustup update --no-self-update stable
-          rustup default stable
-          rustup component add --toolchain stable rust-src
+          rustup update --no-self-update beta
+          rustup default beta
+          rustup component add --toolchain beta rust-src
 
       - name: Checkout repository
         uses: actions/checkout@v4
diff --git a/Cargo.lock b/Cargo.lock
index 8d6c828..01de430 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -18,15 +18,6 @@
 checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627"
 
 [[package]]
-name = "aho-corasick"
-version = "1.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
-dependencies = [
- "memchr",
-]
-
-[[package]]
 name = "allocator-api2"
 version = "0.2.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -61,9 +52,9 @@
 
 [[package]]
 name = "backtrace"
-version = "0.3.74"
+version = "0.3.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d82cb332cdfaed17ae235a638438ac4d4839913cc2af585c3c6746e8f8bee1a"
+checksum = "6806a6321ec58106fea15becdad98371e28d92ccbc7c8f1b3b6dd724fe8f1002"
 dependencies = [
  "addr2line",
  "cfg-if",
@@ -80,6 +71,7 @@
 dependencies = [
  "cfg",
  "dashmap",
+ "indexmap",
  "intern",
  "la-arena 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "query-group-macro",
@@ -123,12 +115,9 @@
 
 [[package]]
 name = "boxcar"
-version = "0.2.11"
+version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6740c6e2fc6360fa57c35214c7493826aee95993926092606f27c983b40837be"
-dependencies = [
- "loom",
-]
+checksum = "66bb12751a83493ef4b8da1120451a262554e216a247f14b48cb5e8fe7ed8bdf"
 
 [[package]]
 name = "camino"
@@ -316,9 +305,9 @@
 
 [[package]]
 name = "ctrlc"
-version = "3.4.5"
+version = "3.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90eeab0aa92f3f9b4e87f258c72b139c207d251f9cbc1080a0086b86a8870dd3"
+checksum = "46f93780a459b7d656ef7f071fe699c4d3d2cb201c4b24d085b6ddc505276e73"
 dependencies = [
  "nix",
  "windows-sys 0.59.0",
@@ -472,9 +461,9 @@
 
 [[package]]
 name = "flate2"
-version = "1.1.0"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11faaf5a5236997af9848be0bef4db95824b1d534ebc64d0f0c6cf3e67bd38dc"
+checksum = "7ced92e76e966ca2fd84c8f7aa01a4aea65b0eb6648d72f7c8f3e2764a67fece"
 dependencies = [
  "crc32fast",
  "miniz_oxide",
@@ -511,19 +500,6 @@
 checksum = "7ab85b9b05e3978cc9a9cf8fea7f01b494e1a09ed3037e16ba39edc7a29eb61a"
 
 [[package]]
-name = "generator"
-version = "0.8.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc6bd114ceda131d3b1d665eba35788690ad37f5916457286b32ab6fd3c438dd"
-dependencies = [
- "cfg-if",
- "libc",
- "log",
- "rustversion",
- "windows 0.58.0",
-]
-
-[[package]]
 name = "getrandom"
 version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1010,9 +986,9 @@
 
 [[package]]
 name = "indexmap"
-version = "2.8.0"
+version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3954d50fe15b02142bf25d3b8bdadb634ec3948f103d04ffe3031bc8fe9d7058"
+checksum = "cea70ddb795996207ad57735b50c5982d8844f38ba9ee5f1aedcfb708a2aa11e"
 dependencies = [
  "equivalent",
  "hashbrown 0.15.2",
@@ -1123,12 +1099,12 @@
 
 [[package]]
 name = "libloading"
-version = "0.8.6"
+version = "0.8.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc2f4eb4bc735547cfed7c0a4922cbd04a4655978c09b54f1f7b228750664c34"
+checksum = "6a793df0d7afeac54f95b471d3af7f0d4fb975699f972341a4b76988d49cdf0c"
 dependencies = [
  "cfg-if",
- "windows-targets 0.52.6",
+ "windows-targets 0.53.0",
 ]
 
 [[package]]
@@ -1213,19 +1189,6 @@
 checksum = "30bde2b3dc3671ae49d8e2e9f044c7c005836e7a023ee57cffa25ab82764bb9e"
 
 [[package]]
-name = "loom"
-version = "0.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "419e0dc8046cb947daa77eb95ae174acfbddb7673b4151f56d1eed8e93fbfaca"
-dependencies = [
- "cfg-if",
- "generator",
- "scoped-tls",
- "tracing",
- "tracing-subscriber",
-]
-
-[[package]]
 name = "lsp-server"
 version = "0.7.8"
 dependencies = [
@@ -1265,15 +1228,6 @@
 ]
 
 [[package]]
-name = "matchers"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8263075bb86c5a1b1427b5ae862e8889656f126e9f77c484496e8b47cf5c5558"
-dependencies = [
- "regex-automata 0.1.10",
-]
-
-[[package]]
 name = "mbe"
 version = "0.0.0"
 dependencies = [
@@ -1358,9 +1312,9 @@
 
 [[package]]
 name = "nix"
-version = "0.29.0"
+version = "0.30.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71e2746dc3a24dd78b3cfcb7be93368c6de9963d30f43a6a73998a9cf4b17b46"
+checksum = "74523f3a35e05aba87a1d978330aef40f67b0304ac79c1c00b294c9830543db6"
 dependencies = [
  "bitflags 2.9.0",
  "cfg-if",
@@ -1401,16 +1355,6 @@
 
 [[package]]
 name = "nu-ansi-term"
-version = "0.46.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77a8165726e8236064dbb45459242600304b42a5ea24ee2948e18e023bf7ba84"
-dependencies = [
- "overload",
- "winapi",
-]
-
-[[package]]
-name = "nu-ansi-term"
 version = "0.50.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d4a28e057d01f97e61255210fcff094d74ed0466038633e95017f5beb68e4399"
@@ -1471,12 +1415,6 @@
 checksum = "04744f49eae99ab78e0d5c0b603ab218f515ea8cfe5a456d7629ad883a3b6e7d"
 
 [[package]]
-name = "overload"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
-
-[[package]]
 name = "parking_lot"
 version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1640,14 +1578,14 @@
 
 [[package]]
 name = "process-wrap"
-version = "8.2.0"
+version = "8.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d35f4dc9988d1326b065b4def5e950c3ed727aa03e3151b86cc9e2aec6b03f54"
+checksum = "a3ef4f2f0422f23a82ec9f628ea2acd12871c81a9362b02c43c1aa86acfc3ba1"
 dependencies = [
  "indexmap",
  "nix",
  "tracing",
- "windows 0.59.0",
+ "windows",
 ]
 
 [[package]]
@@ -1749,9 +1687,9 @@
 
 [[package]]
 name = "ra-ap-rustc_abi"
-version = "0.110.0"
+version = "0.113.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "912228bd8ed3beff1f6f9e5e2d4b37c0827ba3e2070060bf3858a311d0e29e30"
+checksum = "c33b8fa229789975647ca5426be432c7c327ebde89ab15889928185dbcee3230"
 dependencies = [
  "bitflags 2.9.0",
  "ra-ap-rustc_hashes",
@@ -1761,18 +1699,18 @@
 
 [[package]]
 name = "ra-ap-rustc_hashes"
-version = "0.110.0"
+version = "0.113.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba520764daf057a9d963fa769f4762eaf87ac5d4900ae76195eeead64cd35afd"
+checksum = "0d68a3e389927002f552938a90b04787f6435f55b46fc5691360470d1cb2e99d"
 dependencies = [
  "rustc-stable-hash",
 ]
 
 [[package]]
 name = "ra-ap-rustc_index"
-version = "0.110.0"
+version = "0.113.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b76b5f9ee55f2d0e5a65bea23f6d738893349ce8d3d17a6720933e647ab04978"
+checksum = "32502273df2838d0ca13f1c67e2a48feef940e591f9771869f07e2db2acede53"
 dependencies = [
  "ra-ap-rustc_index_macros",
  "smallvec",
@@ -1780,9 +1718,9 @@
 
 [[package]]
 name = "ra-ap-rustc_index_macros"
-version = "0.110.0"
+version = "0.113.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddd972eb1face2fcaa0d94c01d97862fb955b5561d4f5932003bce8a6cadd8c6"
+checksum = "8a32f081864ae34c7ae6634edfa7a95ab9260ba85015e8b1d347580eda79d14f"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1791,9 +1729,9 @@
 
 [[package]]
 name = "ra-ap-rustc_lexer"
-version = "0.110.0"
+version = "0.113.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba3a9876456fb2521097deef33ddeac1c18260c8eafb68054d986f8b9d6ce9fa"
+checksum = "ed34c51974718c5bd90d876d1364d9725159fc8030c2382b9cb837034152ed68"
 dependencies = [
  "memchr",
  "unicode-properties",
@@ -1802,9 +1740,9 @@
 
 [[package]]
 name = "ra-ap-rustc_parse_format"
-version = "0.110.0"
+version = "0.113.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e85de58dfcc60a5f9d5ec0157a657e3f84abd8f22c8a0c4d707cfb42c9011f4"
+checksum = "ff0440e5d27facbf4ff13ea651e48c2f6e360b3dbfc56251b41d60719b965fb8"
 dependencies = [
  "ra-ap-rustc_lexer",
  "rustc-literal-escaper",
@@ -1812,9 +1750,9 @@
 
 [[package]]
 name = "ra-ap-rustc_pattern_analysis"
-version = "0.110.0"
+version = "0.113.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ceadf9db550db67deff7eff2e2765109b860c9d7e5bdfca144863020289c823d"
+checksum = "a6056efa57aba3aa0cc69a0bf1a8281624c23ad25b05748d11ebcd4668037bfc"
 dependencies = [
  "ra-ap-rustc_index",
  "rustc-hash 2.1.1",
@@ -1864,50 +1802,6 @@
 ]
 
 [[package]]
-name = "regex"
-version = "1.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b544ef1b4eac5dc2db33ea63606ae9ffcfac26c1416a2806ae0bf5f56b201191"
-dependencies = [
- "aho-corasick",
- "memchr",
- "regex-automata 0.4.9",
- "regex-syntax 0.8.5",
-]
-
-[[package]]
-name = "regex-automata"
-version = "0.1.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
-dependencies = [
- "regex-syntax 0.6.29",
-]
-
-[[package]]
-name = "regex-automata"
-version = "0.4.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "809e8dc61f6de73b46c85f4c96486310fe304c434cfa43669d7b40f711150908"
-dependencies = [
- "aho-corasick",
- "memchr",
- "regex-syntax 0.8.5",
-]
-
-[[package]]
-name = "regex-syntax"
-version = "0.6.29"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
-
-[[package]]
-name = "regex-syntax"
-version = "0.8.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
-
-[[package]]
 name = "rowan"
 version = "0.15.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2026,12 +1920,6 @@
 ]
 
 [[package]]
-name = "rustversion"
-version = "1.0.20"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eded382c5f5f786b989652c49544c4877d9f015cc22e145a5ea8ea66c2921cd2"
-
-[[package]]
 name = "ryu"
 version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2039,9 +1927,9 @@
 
 [[package]]
 name = "salsa"
-version = "0.21.1"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f80d5cf3c3fcab2cef898012f242a670477a1baa609267376af9cb4409026c5"
+checksum = "c8fff508e3d6ef42a32607f7538e17171a877a12015e32036f46e99d00c95781"
 dependencies = [
  "boxcar",
  "crossbeam-queue",
@@ -2062,15 +1950,15 @@
 
 [[package]]
 name = "salsa-macro-rules"
-version = "0.21.1"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05303d72606fbf2b9c9523cda2039bb8ecb00304027a3cd7e52b02a65c7d9185"
+checksum = "8ea72b3c06f2ce6350fe3a0eeb7aaaf842d1d8352b706973c19c4f02e298a87c"
 
 [[package]]
 name = "salsa-macros"
-version = "0.21.1"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb2f0e2a30c65cb3cd63440c491dde68d9af7e1be2b77832ac7057141107db50"
+checksum = "0ce92025bc160b27814a207cb78d680973af17f863c7f4fc56cf3a535e22f378"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -2228,6 +2116,7 @@
 dependencies = [
  "backtrace",
  "crossbeam-channel",
+ "crossbeam-utils",
  "itertools 0.14.0",
  "jod-thread",
  "libc",
@@ -2554,15 +2443,9 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e8189decb5ac0fa7bc8b96b7cb9b2701d60d48805aca84a238004d665fcc4008"
 dependencies = [
- "matchers",
- "nu-ansi-term 0.46.0",
- "once_cell",
- "regex",
  "sharded-slab",
- "smallvec",
  "thread_local",
  "time",
- "tracing",
  "tracing-core",
  "tracing-log",
 ]
@@ -2573,7 +2456,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f459ca79f1b0d5f71c54ddfde6debfc59c8b6eeb46808ae492077f739dc7b49c"
 dependencies = [
- "nu-ansi-term 0.50.1",
+ "nu-ansi-term",
  "tracing-core",
  "tracing-log",
  "tracing-subscriber",
@@ -2708,22 +2591,6 @@
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
-name = "winapi"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
-dependencies = [
- "winapi-i686-pc-windows-gnu",
- "winapi-x86_64-pc-windows-gnu",
-]
-
-[[package]]
-name = "winapi-i686-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-
-[[package]]
 name = "winapi-util"
 version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2733,73 +2600,55 @@
 ]
 
 [[package]]
-name = "winapi-x86_64-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-
-[[package]]
 name = "windows"
-version = "0.58.0"
+version = "0.61.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd04d41d93c4992d421894c18c8b43496aa748dd4c081bac0dc93eb0489272b6"
+checksum = "c5ee8f3d025738cb02bad7868bbb5f8a6327501e870bf51f1b455b0a2454a419"
 dependencies = [
- "windows-core 0.58.0",
- "windows-targets 0.52.6",
+ "windows-collections",
+ "windows-core",
+ "windows-future",
+ "windows-link",
+ "windows-numerics",
 ]
 
 [[package]]
-name = "windows"
-version = "0.59.0"
+name = "windows-collections"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f919aee0a93304be7f62e8e5027811bbba96bcb1de84d6618be56e43f8a32a1"
+checksum = "3beeceb5e5cfd9eb1d76b381630e82c4241ccd0d27f1a39ed41b2760b255c5e8"
 dependencies = [
- "windows-core 0.59.0",
- "windows-targets 0.53.0",
+ "windows-core",
 ]
 
 [[package]]
 name = "windows-core"
-version = "0.58.0"
+version = "0.61.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ba6d44ec8c2591c134257ce647b7ea6b20335bf6379a27dac5f1641fcf59f99"
+checksum = "4763c1de310c86d75a878046489e2e5ba02c649d185f21c67d4cf8a56d098980"
 dependencies = [
- "windows-implement 0.58.0",
- "windows-interface 0.58.0",
- "windows-result 0.2.0",
- "windows-strings 0.1.0",
- "windows-targets 0.52.6",
+ "windows-implement",
+ "windows-interface",
+ "windows-link",
+ "windows-result",
+ "windows-strings",
 ]
 
 [[package]]
-name = "windows-core"
-version = "0.59.0"
+name = "windows-future"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "810ce18ed2112484b0d4e15d022e5f598113e220c53e373fb31e67e21670c1ce"
+checksum = "7a1d6bbefcb7b60acd19828e1bc965da6fcf18a7e39490c5f8be71e54a19ba32"
 dependencies = [
- "windows-implement 0.59.0",
- "windows-interface 0.59.0",
- "windows-result 0.3.1",
- "windows-strings 0.3.1",
- "windows-targets 0.53.0",
+ "windows-core",
+ "windows-link",
 ]
 
 [[package]]
 name = "windows-implement"
-version = "0.58.0"
+version = "0.60.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2bbd5b46c938e506ecbce286b6628a02171d56153ba733b6c741fc627ec9579b"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "windows-implement"
-version = "0.59.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83577b051e2f49a058c308f17f273b570a6a758386fc291b5f6a934dd84e48c1"
+checksum = "a47fddd13af08290e67f4acabf4b459f647552718f683a7b415d290ac744a836"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2808,20 +2657,9 @@
 
 [[package]]
 name = "windows-interface"
-version = "0.58.0"
+version = "0.59.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "053c4c462dc91d3b1504c6fe5a726dd15e216ba718e84a0e46a88fbe5ded3515"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "windows-interface"
-version = "0.59.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb26fd936d991781ea39e87c3a27285081e3c0da5ca0fcbc02d368cc6f52ff01"
+checksum = "bd9211b69f8dcdfa817bfd14bf1c97c9188afa36f4750130fcdf3f400eca9fa8"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2830,43 +2668,34 @@
 
 [[package]]
 name = "windows-link"
-version = "0.1.0"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6dccfd733ce2b1753b03b6d3c65edf020262ea35e20ccdf3e288043e6dd620e3"
+checksum = "76840935b766e1b0a05c0066835fb9ec80071d4c09a16f6bd5f7e655e3c14c38"
 
 [[package]]
-name = "windows-result"
+name = "windows-numerics"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d1043d8214f791817bab27572aaa8af63732e11bf84aa21a45a78d6c317ae0e"
+checksum = "9150af68066c4c5c07ddc0ce30421554771e528bde427614c61038bc2c92c2b1"
 dependencies = [
- "windows-targets 0.52.6",
+ "windows-core",
+ "windows-link",
 ]
 
 [[package]]
 name = "windows-result"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06374efe858fab7e4f881500e6e86ec8bc28f9462c47e5a9941a0142ad86b189"
+checksum = "c64fd11a4fd95df68efcfee5f44a294fe71b8bc6a91993e2791938abcc712252"
 dependencies = [
  "windows-link",
 ]
 
 [[package]]
 name = "windows-strings"
-version = "0.1.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4cd9b125c486025df0eabcb585e62173c6c9eddcec5d117d3b6e8c30e2ee4d10"
-dependencies = [
- "windows-result 0.2.0",
- "windows-targets 0.52.6",
-]
-
-[[package]]
-name = "windows-strings"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87fa48cc5d406560701792be122a10132491cff9d0aeb23583cc2dcafc847319"
+checksum = "7a2ba9642430ee452d5a7aa78d72907ebe8cfda358e8cb7918a2050581322f97"
 dependencies = [
  "windows-link",
 ]
@@ -3230,17 +3059,14 @@
 
 [[package]]
 name = "zip"
-version = "2.4.2"
+version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fabe6324e908f85a1c52063ce7aa26b68dcb7eb6dbc83a2d148403c9bc3eba50"
+checksum = "12598812502ed0105f607f941c386f43d441e00148fce9dec3ca5ffb0bde9308"
 dependencies = [
  "arbitrary",
  "crc32fast",
- "crossbeam-utils",
- "displaydoc",
  "flate2",
  "indexmap",
  "memchr",
- "thiserror 2.0.12",
  "time",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index c4c2fdf..8c50718 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -85,11 +85,11 @@
 vfs = { path = "./crates/vfs", version = "0.0.0" }
 edition = { path = "./crates/edition", version = "0.0.0" }
 
-ra-ap-rustc_lexer = { version = "0.110", default-features = false }
-ra-ap-rustc_parse_format = { version = "0.110", default-features = false }
-ra-ap-rustc_index = { version = "0.110", default-features = false }
-ra-ap-rustc_abi = { version = "0.110", default-features = false }
-ra-ap-rustc_pattern_analysis = { version = "0.110", default-features = false }
+ra-ap-rustc_lexer = { version = "0.113", default-features = false }
+ra-ap-rustc_parse_format = { version = "0.113", default-features = false }
+ra-ap-rustc_index = { version = "0.113", default-features = false }
+ra-ap-rustc_abi = { version = "0.113", default-features = false }
+ra-ap-rustc_pattern_analysis = { version = "0.113", default-features = false }
 
 # local crates that aren't published to crates.io. These should not have versions.
 
@@ -132,8 +132,8 @@
 pulldown-cmark = { version = "0.9.6", default-features = false }
 rayon = "1.10.0"
 rowan = "=0.15.15"
-salsa = { version = "0.21.1", default-features = false, features = ["rayon","salsa_unstable"] }
-salsa-macros = "0.21.1"
+salsa = { version = "0.22.0", default-features = false, features = ["rayon","salsa_unstable"] }
+salsa-macros = "0.22.0"
 semver = "1.0.26"
 serde = { version = "1.0.219" }
 serde_derive = { version = "1.0.219" }
diff --git a/crates/base-db/Cargo.toml b/crates/base-db/Cargo.toml
index e2e3253..3b423a8 100644
--- a/crates/base-db/Cargo.toml
+++ b/crates/base-db/Cargo.toml
@@ -21,6 +21,7 @@
 triomphe.workspace = true
 semver.workspace = true
 tracing.workspace = true
+indexmap.workspace = true
 
 # local deps
 cfg.workspace = true
diff --git a/crates/base-db/src/input.rs b/crates/base-db/src/input.rs
index 9660e6e..7452381 100644
--- a/crates/base-db/src/input.rs
+++ b/crates/base-db/src/input.rs
@@ -14,7 +14,7 @@
 use dashmap::mapref::entry::Entry;
 use intern::Symbol;
 use la_arena::{Arena, Idx, RawIdx};
-use rustc_hash::{FxHashMap, FxHashSet, FxHasher};
+use rustc_hash::{FxBuildHasher, FxHashMap, FxHashSet, FxHasher};
 use salsa::{Durability, Setter};
 use span::Edition;
 use triomphe::Arc;
@@ -24,6 +24,8 @@
 
 pub type ProcMacroPaths = FxHashMap<CrateBuilderId, Result<(String, AbsPathBuf), String>>;
 
+type FxIndexSet<T> = indexmap::IndexSet<T, FxBuildHasher>;
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
 pub struct SourceRootId(pub u32);
 
@@ -393,21 +395,21 @@
 pub type CratesIdMap = FxHashMap<CrateBuilderId, Crate>;
 
 #[salsa_macros::input]
-#[derive(Debug)]
+#[derive(Debug, PartialOrd, Ord)]
 pub struct Crate {
-    #[return_ref]
+    #[returns(ref)]
     pub data: BuiltCrateData,
     /// Crate data that is not needed for analysis.
     ///
     /// This is split into a separate field to increase incrementality.
-    #[return_ref]
+    #[returns(ref)]
     pub extra_data: ExtraCrateData,
     // This is in `Arc` because it is shared for all crates in a workspace.
-    #[return_ref]
+    #[returns(ref)]
     pub workspace_data: Arc<CrateWorkspaceData>,
-    #[return_ref]
+    #[returns(ref)]
     pub cfg_options: CfgOptions,
-    #[return_ref]
+    #[returns(ref)]
     pub env: Env,
 }
 
@@ -474,7 +476,9 @@
     }
 
     pub fn set_in_db(self, db: &mut dyn RootQueryDb) -> CratesIdMap {
-        let mut all_crates = Vec::with_capacity(self.arena.len());
+        // For some reason in some repositories we have duplicate crates, so we use a set and not `Vec`.
+        // We use an `IndexSet` because the list needs to be topologically sorted.
+        let mut all_crates = FxIndexSet::with_capacity_and_hasher(self.arena.len(), FxBuildHasher);
         let mut visited = FxHashMap::default();
         let mut visited_root_files = FxHashSet::default();
 
@@ -494,9 +498,11 @@
             );
         }
 
-        if **old_all_crates != *all_crates {
+        if old_all_crates.len() != all_crates.len()
+            || old_all_crates.iter().any(|&krate| !all_crates.contains(&krate))
+        {
             db.set_all_crates_with_durability(
-                Arc::new(all_crates.into_boxed_slice()),
+                Arc::new(Vec::from_iter(all_crates).into_boxed_slice()),
                 Durability::MEDIUM,
             );
         }
@@ -509,7 +515,7 @@
             crates_map: &CratesMap,
             visited: &mut FxHashMap<CrateBuilderId, Crate>,
             visited_root_files: &mut FxHashSet<FileId>,
-            all_crates: &mut Vec<Crate>,
+            all_crates: &mut FxIndexSet<Crate>,
             source: CrateBuilderId,
         ) -> Crate {
             if let Some(&crate_id) = visited.get(&source) {
@@ -597,7 +603,7 @@
                     input
                 }
             };
-            all_crates.push(crate_input);
+            all_crates.insert(crate_input);
             visited.insert(source, crate_input);
             crate_input
         }
diff --git a/crates/base-db/src/lib.rs b/crates/base-db/src/lib.rs
index a67fbf7..4d4e6ca 100644
--- a/crates/base-db/src/lib.rs
+++ b/crates/base-db/src/lib.rs
@@ -32,6 +32,7 @@
 macro_rules! impl_intern_key {
     ($id:ident, $loc:ident) => {
         #[salsa_macros::interned(no_lifetime)]
+        #[derive(PartialOrd, Ord)]
         pub struct $id {
             pub loc: $loc,
         }
@@ -165,6 +166,7 @@
 }
 
 #[salsa_macros::interned(no_lifetime, debug, constructor=from_span)]
+#[derive(PartialOrd, Ord)]
 pub struct EditionedFileId {
     pub editioned_file_id: span::EditionedFileId,
 }
@@ -356,7 +358,7 @@
 }
 
 fn parse_errors(db: &dyn RootQueryDb, file_id: EditionedFileId) -> Option<&[SyntaxError]> {
-    #[salsa_macros::tracked(return_ref)]
+    #[salsa_macros::tracked(returns(ref))]
     fn parse_errors(db: &dyn RootQueryDb, file_id: EditionedFileId) -> Option<Box<[SyntaxError]>> {
         let errors = db.parse(file_id).errors();
         match &*errors {
diff --git a/crates/hir-def/src/db.rs b/crates/hir-def/src/db.rs
index 2cbdbe1..4a9a3b1 100644
--- a/crates/hir-def/src/db.rs
+++ b/crates/hir-def/src/db.rs
@@ -24,8 +24,8 @@
     item_tree::{AttrOwner, ItemTree},
     lang_item::{self, LangItem},
     nameres::{
-        DefMap, LocalDefMap,
         assoc::{ImplItems, TraitItems},
+        crate_def_map,
         diagnostics::DefDiagnostics,
     },
     signatures::{
@@ -111,16 +111,6 @@
     #[salsa::invoke(ItemTree::block_item_tree_query)]
     fn block_item_tree(&self, block_id: BlockId) -> Arc<ItemTree>;
 
-    #[salsa::invoke(DefMap::crate_local_def_map_query)]
-    fn crate_local_def_map(&self, krate: Crate) -> (Arc<DefMap>, Arc<LocalDefMap>);
-
-    #[salsa::invoke(DefMap::crate_def_map_query)]
-    fn crate_def_map(&self, krate: Crate) -> Arc<DefMap>;
-
-    /// Computes the block-level `DefMap`.
-    #[salsa::invoke(DefMap::block_def_map_query)]
-    fn block_def_map(&self, block: BlockId) -> Arc<DefMap>;
-
     /// Turns a MacroId into a MacroDefId, describing the macro's definition post name resolution.
     #[salsa::invoke(macro_def)]
     fn macro_def(&self, m: MacroId) -> MacroDefId;
@@ -363,7 +353,7 @@
     db: &dyn DefDatabase,
     krate: Crate,
 ) -> Arc<[(MacroCallId, EditionedFileId)]> {
-    db.crate_def_map(krate)
+    crate_def_map(db, krate)
         .modules
         .values()
         .flat_map(|m| m.scope.iter_macro_invoc())
diff --git a/crates/hir-def/src/expr_store.rs b/crates/hir-def/src/expr_store.rs
index e3775c4..f617c32 100644
--- a/crates/hir-def/src/expr_store.rs
+++ b/crates/hir-def/src/expr_store.rs
@@ -19,7 +19,6 @@
 use smallvec::SmallVec;
 use span::{Edition, SyntaxContext};
 use syntax::{AstPtr, SyntaxNodePtr, ast};
-use triomphe::Arc;
 use tt::TextRange;
 
 use crate::{
@@ -30,7 +29,7 @@
         Array, AsmOperand, Binding, BindingId, Expr, ExprId, ExprOrPatId, Label, LabelId, Pat,
         PatId, RecordFieldPat, Statement,
     },
-    nameres::DefMap,
+    nameres::{DefMap, block_def_map},
     type_ref::{LifetimeRef, LifetimeRefId, PathId, TypeRef, TypeRefId},
 };
 
@@ -225,8 +224,8 @@
     pub fn blocks<'a>(
         &'a self,
         db: &'a dyn DefDatabase,
-    ) -> impl Iterator<Item = (BlockId, Arc<DefMap>)> + 'a {
-        self.block_scopes.iter().map(move |&block| (block, db.block_def_map(block)))
+    ) -> impl Iterator<Item = (BlockId, &'a DefMap)> + 'a {
+        self.block_scopes.iter().map(move |&block| (block, block_def_map(db, block)))
     }
 
     pub fn walk_bindings_in_pat(&self, pat_id: PatId, mut f: impl FnMut(BindingId)) {
@@ -299,17 +298,16 @@
             Expr::InlineAsm(it) => it.operands.iter().for_each(|(_, op)| match op {
                 AsmOperand::In { expr, .. }
                 | AsmOperand::Out { expr: Some(expr), .. }
-                | AsmOperand::InOut { expr, .. } => f(*expr),
+                | AsmOperand::InOut { expr, .. }
+                | AsmOperand::Const(expr)
+                | AsmOperand::Label(expr) => f(*expr),
                 AsmOperand::SplitInOut { in_expr, out_expr, .. } => {
                     f(*in_expr);
                     if let Some(out_expr) = out_expr {
                         f(*out_expr);
                     }
                 }
-                AsmOperand::Out { expr: None, .. }
-                | AsmOperand::Const(_)
-                | AsmOperand::Label(_)
-                | AsmOperand::Sym(_) => (),
+                AsmOperand::Out { expr: None, .. } | AsmOperand::Sym(_) => (),
             }),
             Expr::If { condition, then_branch, else_branch } => {
                 f(*condition);
@@ -436,17 +434,16 @@
             Expr::InlineAsm(it) => it.operands.iter().for_each(|(_, op)| match op {
                 AsmOperand::In { expr, .. }
                 | AsmOperand::Out { expr: Some(expr), .. }
-                | AsmOperand::InOut { expr, .. } => f(*expr),
+                | AsmOperand::InOut { expr, .. }
+                | AsmOperand::Const(expr)
+                | AsmOperand::Label(expr) => f(*expr),
                 AsmOperand::SplitInOut { in_expr, out_expr, .. } => {
                     f(*in_expr);
                     if let Some(out_expr) = out_expr {
                         f(*out_expr);
                     }
                 }
-                AsmOperand::Out { expr: None, .. }
-                | AsmOperand::Const(_)
-                | AsmOperand::Label(_)
-                | AsmOperand::Sym(_) => (),
+                AsmOperand::Out { expr: None, .. } | AsmOperand::Sym(_) => (),
             }),
             Expr::If { condition, then_branch, else_branch } => {
                 f(*condition);
diff --git a/crates/hir-def/src/expr_store/lower.rs b/crates/hir-def/src/expr_store/lower.rs
index 50505d5..29871f5 100644
--- a/crates/hir-def/src/expr_store/lower.rs
+++ b/crates/hir-def/src/expr_store/lower.rs
@@ -56,7 +56,7 @@
     item_scope::BuiltinShadowMode,
     item_tree::FieldsShape,
     lang_item::LangItem,
-    nameres::{DefMap, LocalDefMap, MacroSubNs},
+    nameres::{DefMap, LocalDefMap, MacroSubNs, block_def_map},
     type_ref::{
         ArrayType, ConstRef, FnType, LifetimeRef, LifetimeRefId, Mutability, PathId, Rawness,
         RefType, TraitBoundModifier, TraitRef, TypeBound, TypeRef, TypeRefId, UseArgRef,
@@ -436,8 +436,8 @@
     db: &'db dyn DefDatabase,
     cfg_options: &'db CfgOptions,
     expander: Expander,
-    def_map: Arc<DefMap>,
-    local_def_map: Arc<LocalDefMap>,
+    def_map: &'db DefMap,
+    local_def_map: &'db LocalDefMap,
     module: ModuleId,
     pub store: ExpressionStoreBuilder,
     pub(crate) source_map: ExpressionStoreSourceMap,
@@ -544,7 +544,7 @@
         current_file_id: HirFileId,
     ) -> ExprCollector<'_> {
         let (def_map, local_def_map) = module.local_def_map(db);
-        let expander = Expander::new(db, current_file_id, &def_map);
+        let expander = Expander::new(db, current_file_id, def_map);
         ExprCollector {
             db,
             cfg_options: module.krate().cfg_options(db),
@@ -1947,7 +1947,7 @@
                 let resolver = |path: &_| {
                     self.def_map
                         .resolve_path(
-                            &self.local_def_map,
+                            self.local_def_map,
                             self.db,
                             module,
                             path,
@@ -2163,12 +2163,12 @@
         };
 
         let (module, def_map) =
-            match block_id.map(|block_id| (self.db.block_def_map(block_id), block_id)) {
+            match block_id.map(|block_id| (block_def_map(self.db, block_id), block_id)) {
                 Some((def_map, block_id)) => {
                     self.store.block_scopes.push(block_id);
                     (def_map.module_id(DefMap::ROOT), def_map)
                 }
-                None => (self.module, self.def_map.clone()),
+                None => (self.module, self.def_map),
             };
         let prev_def_map = mem::replace(&mut self.def_map, def_map);
         let prev_local_module = mem::replace(&mut self.module, module);
@@ -2247,7 +2247,7 @@
                     // This could also be a single-segment path pattern. To
                     // decide that, we need to try resolving the name.
                     let (resolved, _) = self.def_map.resolve_path(
-                        &self.local_def_map,
+                        self.local_def_map,
                         self.db,
                         self.module.local_id,
                         &name.clone().into(),
diff --git a/crates/hir-def/src/expr_store/lower/path.rs b/crates/hir-def/src/expr_store/lower/path.rs
index 629d1f2..be006c9 100644
--- a/crates/hir-def/src/expr_store/lower/path.rs
+++ b/crates/hir-def/src/expr_store/lower/path.rs
@@ -232,6 +232,14 @@
             .with_borrow_mut(|map| map.extend(ast_segments.into_iter().zip(ast_segments_offset..)));
     }
 
+    if let Some(last_segment_args @ Some(GenericArgs { has_self_type: true, .. })) =
+        generic_args.last_mut()
+    {
+        // Well-formed code cannot have `<T as Trait>` without an associated item after,
+        // and this causes panics in hir-ty lowering.
+        *last_segment_args = None;
+    }
+
     let mod_path = Interned::new(ModPath::from_segments(kind, segments));
     if type_anchor.is_none() && generic_args.is_empty() {
         return Some(Path::BarePath(mod_path));
diff --git a/crates/hir-def/src/expr_store/lower/path/tests.rs b/crates/hir-def/src/expr_store/lower/path/tests.rs
index 337cb10..8fd81c7 100644
--- a/crates/hir-def/src/expr_store/lower/path/tests.rs
+++ b/crates/hir-def/src/expr_store/lower/path/tests.rs
@@ -4,7 +4,6 @@
 use test_fixture::WithFixture;
 
 use crate::{
-    db::DefDatabase,
     expr_store::{
         ExpressionStore,
         lower::{
@@ -14,13 +13,15 @@
         path::Path,
         pretty,
     },
+    nameres::crate_def_map,
     test_db::TestDB,
 };
 
 fn lower_path(path: ast::Path) -> (TestDB, ExpressionStore, Option<Path>) {
     let (db, file_id) = TestDB::with_single_file("");
     let krate = db.fetch_test_crate();
-    let mut ctx = ExprCollector::new(&db, db.crate_def_map(krate).root_module_id(), file_id.into());
+    let mut ctx =
+        ExprCollector::new(&db, crate_def_map(&db, krate).root_module_id(), file_id.into());
     let lowered_path = ctx.lower_path(path, &mut ExprCollector::impl_trait_allocator);
     let store = ctx.store.finish();
     (db, store, lowered_path)
diff --git a/crates/hir-def/src/expr_store/scope.rs b/crates/hir-def/src/expr_store/scope.rs
index 431ea9e..a46711c 100644
--- a/crates/hir-def/src/expr_store/scope.rs
+++ b/crates/hir-def/src/expr_store/scope.rs
@@ -324,11 +324,13 @@
     use test_fixture::WithFixture;
     use test_utils::{assert_eq_text, extract_offset};
 
-    use crate::{FunctionId, ModuleDefId, db::DefDatabase, test_db::TestDB};
+    use crate::{
+        FunctionId, ModuleDefId, db::DefDatabase, nameres::crate_def_map, test_db::TestDB,
+    };
 
     fn find_function(db: &TestDB, file_id: FileId) -> FunctionId {
         let krate = db.test_crate();
-        let crate_def_map = db.crate_def_map(krate);
+        let crate_def_map = crate_def_map(db, krate);
 
         let module = crate_def_map.modules_for_file(db, file_id).next().unwrap();
         let (_, def) = crate_def_map[module].scope.entries().next().unwrap();
diff --git a/crates/hir-def/src/expr_store/tests/body.rs b/crates/hir-def/src/expr_store/tests/body.rs
index d6645dc..29e249b 100644
--- a/crates/hir-def/src/expr_store/tests/body.rs
+++ b/crates/hir-def/src/expr_store/tests/body.rs
@@ -1,9 +1,10 @@
 mod block;
 
-use crate::{DefWithBodyId, ModuleDefId, hir::MatchArm, test_db::TestDB};
+use crate::{DefWithBodyId, ModuleDefId, hir::MatchArm, nameres::crate_def_map, test_db::TestDB};
 use expect_test::{Expect, expect};
 use la_arena::RawIdx;
 use test_fixture::WithFixture;
+use triomphe::Arc;
 
 use super::super::*;
 
@@ -11,7 +12,7 @@
     let db = TestDB::with_files(ra_fixture);
 
     let krate = db.fetch_test_crate();
-    let def_map = db.crate_def_map(krate);
+    let def_map = crate_def_map(&db, krate);
     let mut fn_def = None;
     'outer: for (_, module) in def_map.modules() {
         for decl in module.scope.declarations() {
diff --git a/crates/hir-def/src/expr_store/tests/body/block.rs b/crates/hir-def/src/expr_store/tests/body/block.rs
index da3b65d..5f7b510 100644
--- a/crates/hir-def/src/expr_store/tests/body/block.rs
+++ b/crates/hir-def/src/expr_store/tests/body/block.rs
@@ -189,8 +189,8 @@
 }
     "#,
         expect![[r#"
-            BlockId(3801) in BlockRelativeModuleId { block: Some(BlockId(3800)), local_id: Idx::<ModuleData>(1) }
-            BlockId(3800) in BlockRelativeModuleId { block: None, local_id: Idx::<ModuleData>(0) }
+            BlockId(3c01) in BlockRelativeModuleId { block: Some(BlockId(3c00)), local_id: Idx::<ModuleData>(1) }
+            BlockId(3c00) in BlockRelativeModuleId { block: None, local_id: Idx::<ModuleData>(0) }
             crate scope
         "#]],
     );
diff --git a/crates/hir-def/src/expr_store/tests/signatures.rs b/crates/hir-def/src/expr_store/tests/signatures.rs
index 80561d6..efb558a 100644
--- a/crates/hir-def/src/expr_store/tests/signatures.rs
+++ b/crates/hir-def/src/expr_store/tests/signatures.rs
@@ -1,6 +1,7 @@
 use crate::{
     GenericDefId, ModuleDefId,
     expr_store::pretty::{print_function, print_struct},
+    nameres::crate_def_map,
     test_db::TestDB,
 };
 use expect_test::{Expect, expect};
@@ -12,7 +13,7 @@
     let db = TestDB::with_files(ra_fixture);
 
     let krate = db.fetch_test_crate();
-    let def_map = db.crate_def_map(krate);
+    let def_map = crate_def_map(&db, krate);
     let mut defs = vec![];
     for (_, module) in def_map.modules() {
         for decl in module.scope.declarations() {
diff --git a/crates/hir-def/src/find_path.rs b/crates/hir-def/src/find_path.rs
index 9d62d9c..bb75621 100644
--- a/crates/hir-def/src/find_path.rs
+++ b/crates/hir-def/src/find_path.rs
@@ -52,7 +52,7 @@
             ignore_local_imports,
             is_std_item: item_module.krate().data(db).origin.is_lang(),
             from,
-            from_def_map: &from.def_map(db),
+            from_def_map: from.def_map(db),
             fuel: Cell::new(FIND_PATH_FUEL),
         },
         item,
@@ -691,7 +691,7 @@
         let (def_map, local_def_map) = module.local_def_map(&db);
         let resolved = def_map
             .resolve_path(
-                &local_def_map,
+                local_def_map,
                 &db,
                 module.local_id,
                 &mod_path,
diff --git a/crates/hir-def/src/hir/format_args.rs b/crates/hir-def/src/hir/format_args.rs
index f27a406..271484d 100644
--- a/crates/hir-def/src/hir/format_args.rs
+++ b/crates/hir-def/src/hir/format_args.rs
@@ -297,7 +297,8 @@
                     unfinished_literal.clear();
                 }
 
-                let span = parser.arg_places.get(placeholder_index).and_then(|s| to_span(s.clone()));
+                let span =
+                    parser.arg_places.get(placeholder_index).and_then(|s| to_span(s.clone()));
                 placeholder_index += 1;
 
                 let position_span = to_span(position_span);
diff --git a/crates/hir-def/src/import_map.rs b/crates/hir-def/src/import_map.rs
index db571f0..a6138fb 100644
--- a/crates/hir-def/src/import_map.rs
+++ b/crates/hir-def/src/import_map.rs
@@ -16,7 +16,7 @@
     AssocItemId, AttrDefId, Complete, FxIndexMap, ModuleDefId, ModuleId, TraitId,
     db::DefDatabase,
     item_scope::{ImportOrExternCrate, ItemInNs},
-    nameres::DefMap,
+    nameres::{DefMap, crate_def_map},
     visibility::Visibility,
 };
 
@@ -129,7 +129,7 @@
     fn collect_import_map(db: &dyn DefDatabase, krate: Crate) -> ImportMapIndex {
         let _p = tracing::info_span!("collect_import_map").entered();
 
-        let def_map = db.crate_def_map(krate);
+        let def_map = crate_def_map(db, krate);
         let mut map = FxIndexMap::default();
 
         // We look only into modules that are public(ly reexported), starting with the crate root.
diff --git a/crates/hir-def/src/lang_item.rs b/crates/hir-def/src/lang_item.rs
index 51a833b..4ad4477 100644
--- a/crates/hir-def/src/lang_item.rs
+++ b/crates/hir-def/src/lang_item.rs
@@ -10,6 +10,7 @@
 use crate::{
     AdtId, AssocItemId, AttrDefId, Crate, EnumId, EnumVariantId, FunctionId, ImplId, ModuleDefId,
     StaticId, StructId, TraitId, TypeAliasId, UnionId, db::DefDatabase, expr_store::path::Path,
+    nameres::crate_def_map,
 };
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
@@ -84,13 +85,13 @@
 }
 
 /// Salsa query. This will look for lang items in a specific crate.
-#[salsa_macros::tracked(return_ref)]
+#[salsa_macros::tracked(returns(ref))]
 pub fn crate_lang_items(db: &dyn DefDatabase, krate: Crate) -> Option<Box<LangItems>> {
     let _p = tracing::info_span!("crate_lang_items_query").entered();
 
     let mut lang_items = LangItems::default();
 
-    let crate_def_map = db.crate_def_map(krate);
+    let crate_def_map = crate_def_map(db, krate);
 
     for (_, module_data) in crate_def_map.modules() {
         for impl_def in module_data.scope.impls() {
@@ -209,7 +210,7 @@
 
     let mut traits = Vec::new();
 
-    let crate_def_map = db.crate_def_map(krate);
+    let crate_def_map = crate_def_map(db, krate);
 
     for (_, module_data) in crate_def_map.modules() {
         for def in module_data.scope.declarations() {
diff --git a/crates/hir-def/src/lib.rs b/crates/hir-def/src/lib.rs
index 28011bd..b41ff02 100644
--- a/crates/hir-def/src/lib.rs
+++ b/crates/hir-def/src/lib.rs
@@ -92,7 +92,7 @@
         Const, Enum, ExternCrate, Function, Impl, ItemTreeId, ItemTreeNode, Macro2, MacroRules,
         Static, Struct, Trait, TraitAlias, TypeAlias, Union, Use, Variant,
     },
-    nameres::LocalDefMap,
+    nameres::{LocalDefMap, block_def_map, crate_def_map, crate_local_def_map},
     signatures::VariantFields,
 };
 
@@ -324,12 +324,13 @@
 }
 
 impl CrateRootModuleId {
-    pub fn def_map(&self, db: &dyn DefDatabase) -> Arc<DefMap> {
-        db.crate_def_map(self.krate)
+    pub fn def_map(self, db: &dyn DefDatabase) -> &DefMap {
+        crate_def_map(db, self.krate)
     }
 
-    pub(crate) fn local_def_map(&self, db: &dyn DefDatabase) -> (Arc<DefMap>, Arc<LocalDefMap>) {
-        db.crate_local_def_map(self.krate)
+    pub(crate) fn local_def_map(self, db: &dyn DefDatabase) -> (&DefMap, &LocalDefMap) {
+        let def_map = crate_local_def_map(db, self.krate);
+        (def_map.def_map(db), def_map.local(db))
     }
 
     pub fn krate(self) -> Crate {
@@ -390,26 +391,29 @@
 }
 
 impl ModuleId {
-    pub fn def_map(self, db: &dyn DefDatabase) -> Arc<DefMap> {
+    pub fn def_map(self, db: &dyn DefDatabase) -> &DefMap {
         match self.block {
-            Some(block) => db.block_def_map(block),
-            None => db.crate_def_map(self.krate),
+            Some(block) => block_def_map(db, block),
+            None => crate_def_map(db, self.krate),
         }
     }
 
-    pub(crate) fn local_def_map(self, db: &dyn DefDatabase) -> (Arc<DefMap>, Arc<LocalDefMap>) {
+    pub(crate) fn local_def_map(self, db: &dyn DefDatabase) -> (&DefMap, &LocalDefMap) {
         match self.block {
-            Some(block) => (db.block_def_map(block), self.only_local_def_map(db)),
-            None => db.crate_local_def_map(self.krate),
+            Some(block) => (block_def_map(db, block), self.only_local_def_map(db)),
+            None => {
+                let def_map = crate_local_def_map(db, self.krate);
+                (def_map.def_map(db), def_map.local(db))
+            }
         }
     }
 
-    pub(crate) fn only_local_def_map(self, db: &dyn DefDatabase) -> Arc<LocalDefMap> {
-        db.crate_local_def_map(self.krate).1
+    pub(crate) fn only_local_def_map(self, db: &dyn DefDatabase) -> &LocalDefMap {
+        crate_local_def_map(db, self.krate).local(db)
     }
 
-    pub fn crate_def_map(self, db: &dyn DefDatabase) -> Arc<DefMap> {
-        db.crate_def_map(self.krate)
+    pub fn crate_def_map(self, db: &dyn DefDatabase) -> &DefMap {
+        crate_def_map(db, self.krate)
     }
 
     pub fn krate(self) -> Crate {
@@ -701,6 +705,16 @@
 // casting them, and somehow making the constructors private, which would be annoying.
 impl_from!(FunctionId, ConstId, TypeAliasId for AssocItemId);
 
+impl From<AssocItemId> for ModuleDefId {
+    fn from(item: AssocItemId) -> Self {
+        match item {
+            AssocItemId::FunctionId(f) => f.into(),
+            AssocItemId::ConstId(c) => c.into(),
+            AssocItemId::TypeAliasId(t) => t.into(),
+        }
+    }
+}
+
 #[derive(Debug, PartialOrd, Ord, Clone, Copy, PartialEq, Eq, Hash, salsa_macros::Supertype)]
 pub enum GenericDefId {
     AdtId(AdtId),
diff --git a/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs b/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs
index e21d141..293868d 100644
--- a/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs
+++ b/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs
@@ -454,13 +454,13 @@
 #[rustc_builtin_macro]
 macro_rules! concat {}
 
-fn main() { concat!("fo", "o", 0, r#""bar""#, "\n", false, '"', '\0'); }
+fn main() { concat!("fo", "o", 0, r#""bar""#, "\n", false, '"', -4, - 4, '\0'); }
 "##,
         expect![[r##"
 #[rustc_builtin_macro]
 macro_rules! concat {}
 
-fn main() { "foo0\"bar\"\nfalse\"\u{0}"; }
+fn main() { "foo0\"bar\"\nfalse\"-4-4\u{0}"; }
 "##]],
     );
 }
@@ -510,24 +510,6 @@
 }
 
 #[test]
-fn test_concat_idents_expand() {
-    check(
-        r##"
-#[rustc_builtin_macro]
-macro_rules! concat_idents {}
-
-fn main() { concat_idents!(foo, bar); }
-"##,
-        expect![[r##"
-#[rustc_builtin_macro]
-macro_rules! concat_idents {}
-
-fn main() { foobar; }
-"##]],
-    );
-}
-
-#[test]
 fn test_quote_string() {
     check(
         r##"
diff --git a/crates/hir-def/src/macro_expansion_tests/mod.rs b/crates/hir-def/src/macro_expansion_tests/mod.rs
index 800c96e..dc4334e 100644
--- a/crates/hir-def/src/macro_expansion_tests/mod.rs
+++ b/crates/hir-def/src/macro_expansion_tests/mod.rs
@@ -39,7 +39,7 @@
 use crate::{
     AdtId, Lookup, ModuleDefId,
     db::DefDatabase,
-    nameres::{DefMap, ModuleSource},
+    nameres::{DefMap, ModuleSource, crate_def_map},
     src::HasSource,
     test_db::TestDB,
     tt::TopSubtree,
@@ -49,7 +49,7 @@
 fn check_errors(#[rust_analyzer::rust_fixture] ra_fixture: &str, expect: Expect) {
     let db = TestDB::with_files(ra_fixture);
     let krate = db.fetch_test_crate();
-    let def_map = db.crate_def_map(krate);
+    let def_map = crate_def_map(&db, krate);
     let errors = def_map
         .modules()
         .flat_map(|module| module.1.scope.all_macro_calls())
@@ -113,7 +113,7 @@
 
                 let (body, sm) = db.body_with_source_map(body);
                 if let Some(it) =
-                    body.blocks(db).find_map(|block| resolve(db, &block.1, ast_id, ast_ptr))
+                    body.blocks(db).find_map(|block| resolve(db, block.1, ast_id, ast_ptr))
                 {
                     return Some(it);
                 }
@@ -127,7 +127,7 @@
 
     let db = TestDB::with_files_extra_proc_macros(ra_fixture, extra_proc_macros);
     let krate = db.fetch_test_crate();
-    let def_map = db.crate_def_map(krate);
+    let def_map = crate_def_map(&db, krate);
     let local_id = DefMap::ROOT;
     let source = def_map[local_id].definition_source(&db);
     let source_file = match source.value {
@@ -142,7 +142,7 @@
         let ast_id = db.ast_id_map(source.file_id).ast_id(&macro_call_node);
         let ast_id = InFile::new(source.file_id, ast_id);
         let ptr = InFile::new(source.file_id, AstPtr::new(&macro_call_node));
-        let macro_call_id = resolve(&db, &def_map, ast_id, ptr)
+        let macro_call_id = resolve(&db, def_map, ast_id, ptr)
             .unwrap_or_else(|| panic!("unable to find semantic macro call {macro_call_node}"));
         let expansion_result = db.parse_macro_expansion(macro_call_id);
         expansions.push((macro_call_node.clone(), expansion_result));
@@ -380,8 +380,4 @@
             panic!("got invalid macro input: {:?}", parse.errors());
         }
     }
-
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
-        other.as_any().type_id() == std::any::TypeId::of::<Self>()
-    }
 }
diff --git a/crates/hir-def/src/nameres.rs b/crates/hir-def/src/nameres.rs
index fc66d8e..f337f83 100644
--- a/crates/hir-def/src/nameres.rs
+++ b/crates/hir-def/src/nameres.rs
@@ -112,6 +112,18 @@
     extern_prelude: FxIndexMap<Name, (CrateRootModuleId, Option<ExternCrateId>)>,
 }
 
+impl std::hash::Hash for LocalDefMap {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        let LocalDefMap { extern_prelude } = self;
+        extern_prelude.len().hash(state);
+        for (name, (crate_root, extern_crate)) in extern_prelude {
+            name.hash(state);
+            crate_root.hash(state);
+            extern_crate.hash(state);
+        }
+    }
+}
+
 impl LocalDefMap {
     pub(crate) const EMPTY: &Self =
         &Self { extern_prelude: FxIndexMap::with_hasher(rustc_hash::FxBuildHasher) };
@@ -250,7 +262,7 @@
 }
 
 impl BlockRelativeModuleId {
-    fn def_map(self, db: &dyn DefDatabase, krate: Crate) -> Arc<DefMap> {
+    fn def_map(self, db: &dyn DefDatabase, krate: Crate) -> &DefMap {
         self.into_module(krate).def_map(db)
     }
 
@@ -358,6 +370,87 @@
     pub scope: ItemScope,
 }
 
+#[inline]
+pub fn crate_def_map(db: &dyn DefDatabase, crate_id: Crate) -> &DefMap {
+    crate_local_def_map(db, crate_id).def_map(db)
+}
+
+#[allow(unused_lifetimes)]
+mod __ {
+    use super::*;
+    #[salsa_macros::tracked]
+    pub(crate) struct DefMapPair<'db> {
+        #[tracked]
+        #[returns(ref)]
+        pub(crate) def_map: DefMap,
+        #[returns(ref)]
+        pub(crate) local: LocalDefMap,
+    }
+}
+pub(crate) use __::DefMapPair;
+
+#[salsa_macros::tracked(returns(ref))]
+pub(crate) fn crate_local_def_map(db: &dyn DefDatabase, crate_id: Crate) -> DefMapPair<'_> {
+    let krate = crate_id.data(db);
+    let _p = tracing::info_span!(
+        "crate_def_map_query",
+        name=?crate_id
+            .extra_data(db)
+            .display_name
+            .as_ref()
+            .map(|it| it.crate_name().to_smolstr())
+            .unwrap_or_default()
+    )
+    .entered();
+
+    let module_data = ModuleData::new(
+        ModuleOrigin::CrateRoot { definition: krate.root_file_id(db) },
+        Visibility::Public,
+    );
+
+    let def_map =
+        DefMap::empty(crate_id, Arc::new(DefMapCrateData::new(krate.edition)), module_data, None);
+    let (def_map, local_def_map) = collector::collect_defs(
+        db,
+        def_map,
+        TreeId::new(krate.root_file_id(db).into(), None),
+        None,
+    );
+
+    DefMapPair::new(db, def_map, local_def_map)
+}
+
+#[salsa_macros::tracked(returns(ref))]
+pub fn block_def_map(db: &dyn DefDatabase, block_id: BlockId) -> DefMap {
+    let BlockLoc { ast_id, module } = block_id.lookup(db);
+
+    let visibility = Visibility::Module(
+        ModuleId { krate: module.krate, local_id: DefMap::ROOT, block: module.block },
+        VisibilityExplicitness::Implicit,
+    );
+    let module_data =
+        ModuleData::new(ModuleOrigin::BlockExpr { block: ast_id, id: block_id }, visibility);
+
+    let local_def_map = crate_local_def_map(db, module.krate);
+    let def_map = DefMap::empty(
+        module.krate,
+        local_def_map.def_map(db).data.clone(),
+        module_data,
+        Some(BlockInfo {
+            block: block_id,
+            parent: BlockRelativeModuleId { block: module.block, local_id: module.local_id },
+        }),
+    );
+
+    let (def_map, _) = collector::collect_defs(
+        db,
+        def_map,
+        TreeId::new(ast_id.file_id, Some(block_id)),
+        Some(local_def_map.local(db)),
+    );
+    def_map
+}
+
 impl DefMap {
     /// The module id of a crate or block root.
     pub const ROOT: LocalModuleId = LocalModuleId::from_raw(la_arena::RawIdx::from_u32(0));
@@ -366,77 +459,6 @@
         self.data.edition
     }
 
-    pub(crate) fn crate_def_map_query(db: &dyn DefDatabase, crate_id: Crate) -> Arc<DefMap> {
-        db.crate_local_def_map(crate_id).0
-    }
-
-    pub(crate) fn crate_local_def_map_query(
-        db: &dyn DefDatabase,
-        crate_id: Crate,
-    ) -> (Arc<DefMap>, Arc<LocalDefMap>) {
-        let krate = crate_id.data(db);
-        let _p = tracing::info_span!(
-            "crate_def_map_query",
-            name=?crate_id
-                .extra_data(db)
-                .display_name
-                .as_ref()
-                .map(|it| it.crate_name().to_smolstr())
-                .unwrap_or_default()
-        )
-        .entered();
-
-        let module_data = ModuleData::new(
-            ModuleOrigin::CrateRoot { definition: krate.root_file_id(db) },
-            Visibility::Public,
-        );
-
-        let def_map = DefMap::empty(
-            crate_id,
-            Arc::new(DefMapCrateData::new(krate.edition)),
-            module_data,
-            None,
-        );
-        let (def_map, local_def_map) = collector::collect_defs(
-            db,
-            def_map,
-            TreeId::new(krate.root_file_id(db).into(), None),
-            None,
-        );
-
-        (Arc::new(def_map), Arc::new(local_def_map))
-    }
-
-    pub(crate) fn block_def_map_query(db: &dyn DefDatabase, block_id: BlockId) -> Arc<DefMap> {
-        let BlockLoc { ast_id, module } = block_id.lookup(db);
-
-        let visibility = Visibility::Module(
-            ModuleId { krate: module.krate, local_id: Self::ROOT, block: module.block },
-            VisibilityExplicitness::Implicit,
-        );
-        let module_data =
-            ModuleData::new(ModuleOrigin::BlockExpr { block: ast_id, id: block_id }, visibility);
-
-        let (crate_map, crate_local_map) = db.crate_local_def_map(module.krate);
-        let def_map = DefMap::empty(
-            module.krate,
-            crate_map.data.clone(),
-            module_data,
-            Some(BlockInfo {
-                block: block_id,
-                parent: BlockRelativeModuleId { block: module.block, local_id: module.local_id },
-            }),
-        );
-
-        let (def_map, _) = collector::collect_defs(
-            db,
-            def_map,
-            TreeId::new(ast_id.file_id, Some(block_id)),
-            Some(crate_local_map),
-        );
-        Arc::new(def_map)
-    }
-
     fn empty(
         krate: Crate,
         crate_data: Arc<DefMapCrateData>,
@@ -595,7 +617,7 @@
             go(&mut buf, db, current_map, "block scope", Self::ROOT);
             buf.push('\n');
             arc = block.parent.def_map(db, self.krate);
-            current_map = &arc;
+            current_map = arc;
         }
         go(&mut buf, db, current_map, "crate", Self::ROOT);
         return buf;
@@ -628,7 +650,7 @@
         while let Some(block) = current_map.block {
             format_to!(buf, "{:?} in {:?}\n", block.block, block.parent);
             arc = block.parent.def_map(db, self.krate);
-            current_map = &arc;
+            current_map = arc;
         }
 
         format_to!(buf, "crate scope\n");
@@ -708,7 +730,7 @@
         let mut block = self.block;
         while let Some(block_info) = block {
             let parent = block_info.parent.def_map(db, self.krate);
-            if let Some(it) = f(&parent, block_info.parent.local_id) {
+            if let Some(it) = f(parent, block_info.parent.local_id) {
                 return Some(it);
             }
             block = parent.block;
diff --git a/crates/hir-def/src/nameres/assoc.rs b/crates/hir-def/src/nameres/assoc.rs
index 448b908..86225d3 100644
--- a/crates/hir-def/src/nameres/assoc.rs
+++ b/crates/hir-def/src/nameres/assoc.rs
@@ -66,7 +66,16 @@
         })
     }
 
-    pub fn attribute_calls(&self) -> impl Iterator<Item = (AstId<ast::Item>, MacroCallId)> + '_ {
+    pub fn assoc_item_by_name(&self, name: &Name) -> Option<AssocItemId> {
+        self.items.iter().find_map(|&(ref item_name, item)| match item {
+            AssocItemId::FunctionId(_) if item_name == name => Some(item),
+            AssocItemId::TypeAliasId(_) if item_name == name => Some(item),
+            AssocItemId::ConstId(_) if item_name == name => Some(item),
+            _ => None,
+        })
+    }
+
+    pub fn macro_calls(&self) -> impl Iterator<Item = (AstId<ast::Item>, MacroCallId)> + '_ {
         self.macro_calls.iter().flat_map(|it| it.iter()).copied()
     }
 }
@@ -100,7 +109,7 @@
         (Arc::new(ImplItems { items, macro_calls }), DefDiagnostics::new(diagnostics))
     }
 
-    pub fn attribute_calls(&self) -> impl Iterator<Item = (AstId<ast::Item>, MacroCallId)> + '_ {
+    pub fn macro_calls(&self) -> impl Iterator<Item = (AstId<ast::Item>, MacroCallId)> + '_ {
         self.macro_calls.iter().flat_map(|it| it.iter()).copied()
     }
 }
@@ -108,8 +117,8 @@
 struct AssocItemCollector<'a> {
     db: &'a dyn DefDatabase,
     module_id: ModuleId,
-    def_map: Arc<DefMap>,
-    local_def_map: Arc<LocalDefMap>,
+    def_map: &'a DefMap,
+    local_def_map: &'a LocalDefMap,
     diagnostics: Vec<DefDiagnostic>,
     container: ItemContainerId,
 
@@ -174,7 +183,7 @@
             let ast_id_with_path = AstIdWithPath { path: attr.path.clone(), ast_id };
 
             match self.def_map.resolve_attr_macro(
-                &self.local_def_map,
+                self.local_def_map,
                 self.db,
                 self.module_id.local_id,
                 ast_id_with_path,
@@ -246,7 +255,7 @@
                 let resolver = |path: &_| {
                     self.def_map
                         .resolve_path(
-                            &self.local_def_map,
+                            self.local_def_map,
                             self.db,
                             self.module_id.local_id,
                             path,
diff --git a/crates/hir-def/src/nameres/collector.rs b/crates/hir-def/src/nameres/collector.rs
index 8df0f09..350c97c 100644
--- a/crates/hir-def/src/nameres/collector.rs
+++ b/crates/hir-def/src/nameres/collector.rs
@@ -26,7 +26,7 @@
 use triomphe::Arc;
 
 use crate::{
-    AdtId, AstId, AstIdWithPath, ConstLoc, CrateRootModuleId, EnumLoc, ExternBlockLoc,
+    AdtId, AssocItemId, AstId, AstIdWithPath, ConstLoc, CrateRootModuleId, EnumLoc, ExternBlockLoc,
     ExternCrateId, ExternCrateLoc, FunctionId, FunctionLoc, ImplLoc, Intern, ItemContainerId,
     LocalModuleId, Lookup, Macro2Id, Macro2Loc, MacroExpander, MacroId, MacroRulesId,
     MacroRulesLoc, MacroRulesLocFlags, ModuleDefId, ModuleId, ProcMacroId, ProcMacroLoc, StaticLoc,
@@ -43,9 +43,10 @@
     nameres::{
         BuiltinShadowMode, DefMap, LocalDefMap, MacroSubNs, ModuleData, ModuleOrigin, ResolveMode,
         attr_resolution::{attr_macro_as_call_id, derive_macro_as_call_id},
+        crate_def_map,
         diagnostics::DefDiagnostic,
         mod_resolution::ModDir,
-        path_resolution::ReachedFixedPoint,
+        path_resolution::{ReachedFixedPoint, ResolvePathResult},
         proc_macro::{ProcMacroDef, ProcMacroKind, parse_macro_name_and_helper_attrs},
         sub_namespace_match,
     },
@@ -61,7 +62,7 @@
     db: &dyn DefDatabase,
     def_map: DefMap,
     tree_id: TreeId,
-    crate_local_def_map: Option<Arc<LocalDefMap>>,
+    crate_local_def_map: Option<&LocalDefMap>,
 ) -> (DefMap, LocalDefMap) {
     let krate = &def_map.krate.data(db);
     let cfg_options = def_map.krate.cfg_options(db);
@@ -216,7 +217,7 @@
     def_map: DefMap,
     local_def_map: LocalDefMap,
     /// Set only in case of blocks.
-    crate_local_def_map: Option<Arc<LocalDefMap>>,
+    crate_local_def_map: Option<&'a LocalDefMap>,
     // The dependencies of the current crate, including optional deps like `test`.
     deps: FxHashMap<Name, BuiltDependency>,
     glob_imports: FxHashMap<LocalModuleId, Vec<(LocalModuleId, Visibility, GlobId)>>,
@@ -533,7 +534,7 @@
         );
 
         let (per_ns, _) = self.def_map.resolve_path(
-            self.crate_local_def_map.as_deref().unwrap_or(&self.local_def_map),
+            self.crate_local_def_map.unwrap_or(&self.local_def_map),
             self.db,
             DefMap::ROOT,
             &path,
@@ -556,7 +557,7 @@
     }
 
     fn local_def_map(&mut self) -> &LocalDefMap {
-        self.crate_local_def_map.as_deref().unwrap_or(&self.local_def_map)
+        self.crate_local_def_map.unwrap_or(&self.local_def_map)
     }
 
     /// Adds a definition of procedural macro `name` to the root module.
@@ -688,7 +689,7 @@
         let vis = self
             .def_map
             .resolve_visibility(
-                self.crate_local_def_map.as_deref().unwrap_or(&self.local_def_map),
+                self.crate_local_def_map.unwrap_or(&self.local_def_map),
                 self.db,
                 module_id,
                 vis,
@@ -731,7 +732,7 @@
         names: Option<Vec<Name>>,
         extern_crate: Option<ExternCrateId>,
     ) {
-        let def_map = self.db.crate_def_map(krate);
+        let def_map = crate_def_map(self.db, krate);
         // `#[macro_use]` brings macros into macro_use prelude. Yes, even non-`macro_rules!`
         // macros.
         let root_scope = &def_map[DefMap::ROOT].scope;
@@ -811,32 +812,35 @@
         let _p = tracing::info_span!("resolve_import", import_path = %import.path.display(self.db, Edition::LATEST))
             .entered();
         tracing::debug!("resolving import: {:?} ({:?})", import, self.def_map.data.edition);
-        let res = self.def_map.resolve_path_fp_with_macro(
-            self.crate_local_def_map.as_deref().unwrap_or(&self.local_def_map),
-            self.db,
-            ResolveMode::Import,
-            module_id,
-            &import.path,
-            BuiltinShadowMode::Module,
-            None, // An import may resolve to any kind of macro.
-        );
+        let ResolvePathResult { resolved_def, segment_index, reached_fixedpoint, prefix_info } =
+            self.def_map.resolve_path_fp_with_macro(
+                self.crate_local_def_map.unwrap_or(&self.local_def_map),
+                self.db,
+                ResolveMode::Import,
+                module_id,
+                &import.path,
+                BuiltinShadowMode::Module,
+                None, // An import may resolve to any kind of macro.
+            );
 
-        let def = res.resolved_def;
-        if res.reached_fixedpoint == ReachedFixedPoint::No || def.is_none() {
+        if reached_fixedpoint == ReachedFixedPoint::No
+            || resolved_def.is_none()
+            || segment_index.is_some()
+        {
             return PartialResolvedImport::Unresolved;
         }
 
-        if res.prefix_info.differing_crate {
+        if prefix_info.differing_crate {
             return PartialResolvedImport::Resolved(
-                def.filter_visibility(|v| matches!(v, Visibility::Public)),
+                resolved_def.filter_visibility(|v| matches!(v, Visibility::Public)),
             );
         }
 
         // Check whether all namespaces are resolved.
-        if def.is_full() {
-            PartialResolvedImport::Resolved(def)
+        if resolved_def.is_full() {
+            PartialResolvedImport::Resolved(resolved_def)
         } else {
-            PartialResolvedImport::Indeterminate(def)
+            PartialResolvedImport::Indeterminate(resolved_def)
         }
     }
 
@@ -849,7 +853,7 @@
         let vis = self
             .def_map
             .resolve_visibility(
-                self.crate_local_def_map.as_deref().unwrap_or(&self.local_def_map),
+                self.crate_local_def_map.unwrap_or(&self.local_def_map),
                 self.db,
                 module_id,
                 &directive.import.visibility,
@@ -986,6 +990,43 @@
                             Some(ImportOrExternCrate::Glob(glob)),
                         );
                     }
+                    Some(ModuleDefId::TraitId(it)) => {
+                        // FIXME: Implement this correctly
+                        // We can't actually call `trait_items`, the reason being that if macro calls
+                        // occur, they will call back into the def map which we might be computing right
+                        // now resulting in a cycle.
+                        // To properly implement this, trait item collection needs to be done in def map
+                        // collection...
+                        let resolutions = if true {
+                            vec![]
+                        } else {
+                            self.db
+                                .trait_items(it)
+                                .items
+                                .iter()
+                                .map(|&(ref name, variant)| {
+                                    let res = match variant {
+                                        AssocItemId::FunctionId(it) => {
+                                            PerNs::values(it.into(), vis, None)
+                                        }
+                                        AssocItemId::ConstId(it) => {
+                                            PerNs::values(it.into(), vis, None)
+                                        }
+                                        AssocItemId::TypeAliasId(it) => {
+                                            PerNs::types(it.into(), vis, None)
+                                        }
+                                    };
+                                    (Some(name.clone()), res)
+                                })
+                                .collect::<Vec<_>>()
+                        };
+                        self.update(
+                            module_id,
+                            &resolutions,
+                            vis,
+                            Some(ImportOrExternCrate::Glob(glob)),
+                        );
+                    }
                     Some(d) => {
                         tracing::debug!("glob import {:?} from non-module/enum {:?}", import, d);
                     }
@@ -1240,7 +1281,7 @@
             };
             let resolver = |path: &_| {
                 let resolved_res = self.def_map.resolve_path_fp_with_macro(
-                    self.crate_local_def_map.as_deref().unwrap_or(&self.local_def_map),
+                    self.crate_local_def_map.unwrap_or(&self.local_def_map),
                     self.db,
                     ResolveMode::Other,
                     directive.module_id,
@@ -1307,7 +1348,7 @@
                         );
                         // Record its helper attributes.
                         if def_id.krate != self.def_map.krate {
-                            let def_map = self.db.crate_def_map(def_id.krate);
+                            let def_map = crate_def_map(self.db, def_id.krate);
                             if let Some(helpers) = def_map.data.exported_derives.get(&def_id) {
                                 self.def_map
                                     .derive_helpers_in_scope
@@ -1553,7 +1594,7 @@
                         self.def_map.krate,
                         |path| {
                             let resolved_res = self.def_map.resolve_path_fp_with_macro(
-                                self.crate_local_def_map.as_deref().unwrap_or(&self.local_def_map),
+                                self.crate_local_def_map.unwrap_or(&self.local_def_map),
                                 self.db,
                                 ResolveMode::Other,
                                 directive.module_id,
@@ -1702,11 +1743,8 @@
 
             let module = self.def_collector.def_map.module_id(module_id);
             let def_map = &mut self.def_collector.def_map;
-            let local_def_map = self
-                .def_collector
-                .crate_local_def_map
-                .as_deref()
-                .unwrap_or(&self.def_collector.local_def_map);
+            let local_def_map =
+                self.def_collector.crate_local_def_map.unwrap_or(&self.def_collector.local_def_map);
 
             match item {
                 ModItem::Mod(m) => self.collect_module(m, &attrs),
@@ -2133,10 +2171,7 @@
         let def_map = &mut self.def_collector.def_map;
         let vis = def_map
             .resolve_visibility(
-                self.def_collector
-                    .crate_local_def_map
-                    .as_deref()
-                    .unwrap_or(&self.def_collector.local_def_map),
+                self.def_collector.crate_local_def_map.unwrap_or(&self.def_collector.local_def_map),
                 self.def_collector.db,
                 self.module_id,
                 visibility,
diff --git a/crates/hir-def/src/nameres/path_resolution.rs b/crates/hir-def/src/nameres/path_resolution.rs
index a49155d..74ce33a 100644
--- a/crates/hir-def/src/nameres/path_resolution.rs
+++ b/crates/hir-def/src/nameres/path_resolution.rs
@@ -17,14 +17,17 @@
     name::Name,
 };
 use span::Edition;
-use triomphe::Arc;
+use stdx::TupleExt;
 
 use crate::{
     AdtId, LocalModuleId, ModuleDefId,
     db::DefDatabase,
     item_scope::{BUILTIN_SCOPE, ImportOrExternCrate},
     item_tree::FieldsShape,
-    nameres::{BlockInfo, BuiltinShadowMode, DefMap, LocalDefMap, MacroSubNs, sub_namespace_match},
+    nameres::{
+        BlockInfo, BuiltinShadowMode, DefMap, LocalDefMap, MacroSubNs, crate_def_map,
+        sub_namespace_match,
+    },
     per_ns::PerNs,
     visibility::{RawVisibility, Visibility},
 };
@@ -44,6 +47,7 @@
 #[derive(Debug, Clone)]
 pub(super) struct ResolvePathResult {
     pub(super) resolved_def: PerNs,
+    /// The index of the last resolved segment, or `None` if the full path has been resolved.
     pub(super) segment_index: Option<usize>,
     pub(super) reached_fixedpoint: ReachedFixedPoint,
     pub(super) prefix_info: ResolvePathResultPrefixInfo,
@@ -173,7 +177,6 @@
             return result;
         }
 
-        let mut arc;
         let mut current_map = self;
 
         let mut merge = |new: ResolvePathResult| {
@@ -195,8 +198,7 @@
                 Some(block) if original_module == Self::ROOT => {
                     // Block modules "inherit" names from its parent module.
                     original_module = block.parent.local_id;
-                    arc = block.parent.def_map(db, current_map.krate);
-                    current_map = &arc;
+                    current_map = block.parent.def_map(db, current_map.krate);
                 }
                 // Proper (non-block) modules, including those in block `DefMap`s, don't.
                 _ => {
@@ -204,8 +206,7 @@
                         // A module inside a block. Do not resolve items declared in upper blocks, but we do need to get
                         // the prelude items (which are not inserted into blocks because they can be overridden there).
                         original_module = Self::ROOT;
-                        arc = db.crate_def_map(self.krate);
-                        current_map = &arc;
+                        current_map = crate_def_map(db, self.krate);
 
                         let new = current_map.resolve_path_fp_in_all_preludes(
                             local_def_map,
@@ -253,7 +254,7 @@
                     cov_mark::hit!(macro_dollar_crate_self);
                     PerNs::types(self.crate_root().into(), Visibility::Public, None)
                 } else {
-                    let def_map = db.crate_def_map(krate);
+                    let def_map = crate_def_map(db, krate);
                     let module = def_map.module_id(Self::ROOT);
                     cov_mark::hit!(macro_dollar_crate_other);
                     PerNs::types(module.into(), Visibility::Public, None)
@@ -312,7 +313,7 @@
                 // Adjust `local_id` to `self`, i.e. the nearest non-block module.
                 if def_map.module_id(local_id).is_block_module() {
                     (ext, local_id) = adjust_to_nearest_non_block_module(db, def_map, local_id);
-                    def_map = &ext;
+                    def_map = ext;
                 }
 
                 // Go up the module tree but skip block modules as `super` always refers to the
@@ -325,7 +326,7 @@
                         if def_map.module_id(local_id).is_block_module() {
                             (ext, local_id) =
                                 adjust_to_nearest_non_block_module(db, def_map, local_id);
-                            def_map = &ext;
+                            def_map = ext;
                         }
                     } else {
                         stdx::always!(def_map.block.is_none());
@@ -364,7 +365,15 @@
             },
         };
 
-        self.resolve_remaining_segments(segments, curr_per_ns, path, db, shadow, original_module)
+        self.resolve_remaining_segments(
+            db,
+            mode,
+            segments,
+            curr_per_ns,
+            path,
+            shadow,
+            original_module,
+        )
     }
 
     /// Resolves a path only in the preludes, without accounting for item scopes.
@@ -413,7 +422,15 @@
             }
         };
 
-        self.resolve_remaining_segments(segments, curr_per_ns, path, db, shadow, original_module)
+        self.resolve_remaining_segments(
+            db,
+            mode,
+            segments,
+            curr_per_ns,
+            path,
+            shadow,
+            original_module,
+        )
     }
 
     /// 2018-style absolute path -- only extern prelude
@@ -441,10 +458,11 @@
 
     fn resolve_remaining_segments<'a>(
         &self,
+        db: &dyn DefDatabase,
+        mode: ResolveMode,
         mut segments: impl Iterator<Item = (usize, &'a Name)>,
         mut curr_per_ns: PerNs,
         path: &ModPath,
-        db: &dyn DefDatabase,
         shadow: BuiltinShadowMode,
         original_module: LocalModuleId,
     ) -> ResolvePathResult {
@@ -465,6 +483,7 @@
             curr_per_ns = match curr.def {
                 ModuleDefId::ModuleId(module) => {
                     if module.krate != self.krate {
+                        // FIXME: Inefficient
                         let path = ModPath::from_segments(
                             PathKind::SELF,
                             path.segments()[i..].iter().cloned(),
@@ -478,7 +497,7 @@
                         let resolution = defp_map.resolve_path_fp_with_macro(
                             LocalDefMap::EMPTY,
                             db,
-                            ResolveMode::Other,
+                            mode,
                             module.local_id,
                             &path,
                             shadow,
@@ -553,6 +572,44 @@
                         ),
                     };
                 }
+                def @ ModuleDefId::TraitId(t) if mode == ResolveMode::Import => {
+                    // FIXME: Implement this correctly
+                    // We can't actually call `trait_items`, the reason being that if macro calls
+                    // occur, they will call back into the def map which we might be computing right
+                    // now resulting in a cycle.
+                    // To properly implement this, trait item collection needs to be done in def map
+                    // collection...
+                    let item =
+                        if true { None } else { db.trait_items(t).assoc_item_by_name(segment) };
+                    return match item {
+                        Some(item) => ResolvePathResult::new(
+                            match item {
+                                crate::AssocItemId::FunctionId(function_id) => PerNs::values(
+                                    function_id.into(),
+                                    curr.vis,
+                                    curr.import.and_then(|it| it.import_or_glob()),
+                                ),
+                                crate::AssocItemId::ConstId(const_id) => PerNs::values(
+                                    const_id.into(),
+                                    curr.vis,
+                                    curr.import.and_then(|it| it.import_or_glob()),
+                                ),
+                                crate::AssocItemId::TypeAliasId(type_alias_id) => {
+                                    PerNs::types(type_alias_id.into(), curr.vis, curr.import)
+                                }
+                            },
+                            ReachedFixedPoint::Yes,
+                            segments.next().map(TupleExt::head),
+                            ResolvePathResultPrefixInfo::default(),
+                        ),
+                        None => ResolvePathResult::new(
+                            PerNs::types(def, curr.vis, curr.import),
+                            ReachedFixedPoint::Yes,
+                            Some(i),
+                            ResolvePathResultPrefixInfo::default(),
+                        ),
+                    };
+                }
                 s => {
                     // could be an inherent method call in UFCS form
                     // (`Struct::method`), or some other kind of associated item
@@ -715,7 +772,7 @@
             } else {
                 // Extend lifetime
                 keep = prelude.def_map(db);
-                &keep
+                keep
             };
             def_map[prelude.local_id].scope.get(name)
         } else {
@@ -725,25 +782,23 @@
 }
 
 /// Given a block module, returns its nearest non-block module and the `DefMap` it belongs to.
-fn adjust_to_nearest_non_block_module(
-    db: &dyn DefDatabase,
-    def_map: &DefMap,
+fn adjust_to_nearest_non_block_module<'db>(
+    db: &'db dyn DefDatabase,
+    def_map: &'db DefMap,
     mut local_id: LocalModuleId,
-) -> (Arc<DefMap>, LocalModuleId) {
+) -> (&'db DefMap, LocalModuleId) {
     // INVARIANT: `local_id` in `def_map` must be a block module.
     stdx::always!(def_map.module_id(local_id).is_block_module());
 
-    let mut ext;
     // This needs to be a local variable due to our mighty lifetime.
     let mut def_map = def_map;
     loop {
         let BlockInfo { parent, .. } = def_map.block.expect("block module without parent module");
 
-        ext = parent.def_map(db, def_map.krate);
-        def_map = &ext;
+        def_map = parent.def_map(db, def_map.krate);
         local_id = parent.local_id;
         if !parent.is_block_module() {
-            return (ext, local_id);
+            return (def_map, local_id);
         }
     }
 }
diff --git a/crates/hir-def/src/nameres/tests.rs b/crates/hir-def/src/nameres/tests.rs
index 3fd095a..4a7974c 100644
--- a/crates/hir-def/src/nameres/tests.rs
+++ b/crates/hir-def/src/nameres/tests.rs
@@ -7,20 +7,25 @@
 use base_db::RootQueryDb;
 use expect_test::{Expect, expect};
 use test_fixture::WithFixture;
-use triomphe::Arc;
 
-use crate::{db::DefDatabase, nameres::DefMap, test_db::TestDB};
+use crate::{
+    nameres::{DefMap, crate_def_map},
+    test_db::TestDB,
+};
 
-fn compute_crate_def_map(#[rust_analyzer::rust_fixture] ra_fixture: &str) -> Arc<DefMap> {
+fn compute_crate_def_map(
+    #[rust_analyzer::rust_fixture] ra_fixture: &str,
+    cb: impl FnOnce(&DefMap),
+) {
     let db = TestDB::with_files(ra_fixture);
     let krate = db.fetch_test_crate();
-    db.crate_def_map(krate)
+    cb(crate_def_map(&db, krate));
 }
 
 fn render_crate_def_map(#[rust_analyzer::rust_fixture] ra_fixture: &str) -> String {
     let db = TestDB::with_files(ra_fixture);
     let krate = db.fetch_test_crate();
-    db.crate_def_map(krate).dump(&db)
+    crate_def_map(&db, krate).dump(&db)
 }
 
 fn check(#[rust_analyzer::rust_fixture] ra_fixture: &str, expect: Expect) {
diff --git a/crates/hir-def/src/nameres/tests/incremental.rs b/crates/hir-def/src/nameres/tests/incremental.rs
index 179a9c8..948e8be 100644
--- a/crates/hir-def/src/nameres/tests/incremental.rs
+++ b/crates/hir-def/src/nameres/tests/incremental.rs
@@ -7,24 +7,37 @@
 use test_fixture::WithFixture;
 use triomphe::Arc;
 
-use crate::{AdtId, ModuleDefId, db::DefDatabase, nameres::tests::TestDB};
+use crate::{
+    AdtId, ModuleDefId,
+    db::DefDatabase,
+    nameres::{crate_def_map, tests::TestDB},
+};
 
-fn check_def_map_is_not_recomputed(ra_fixture_initial: &str, ra_fixture_change: &str) {
+fn check_def_map_is_not_recomputed(
+    #[rust_analyzer::rust_fixture] ra_fixture_initial: &str,
+    #[rust_analyzer::rust_fixture] ra_fixture_change: &str,
+) {
     let (mut db, pos) = TestDB::with_position(ra_fixture_initial);
     let krate = db.fetch_test_crate();
     {
         let events = db.log_executed(|| {
-            db.crate_def_map(krate);
+            crate_def_map(&db, krate);
         });
-        assert!(format!("{events:?}").contains("crate_def_map"), "{events:#?}")
+        assert!(
+            format!("{events:?}").contains("crate_local_def_map"),
+            "no crate def map computed:\n{events:#?}",
+        )
     }
     db.set_file_text(pos.file_id.file_id(&db), ra_fixture_change);
 
     {
         let events = db.log_executed(|| {
-            db.crate_def_map(krate);
+            crate_def_map(&db, krate);
         });
-        assert!(!format!("{events:?}").contains("crate_def_map"), "{events:#?}")
+        assert!(
+            !format!("{events:?}").contains("crate_local_def_map"),
+            "crate def map invalidated:\n{events:#?}",
+        )
     }
 }
 
@@ -44,7 +57,7 @@
     );
 
     for &krate in db.all_crates().iter() {
-        db.crate_def_map(krate);
+        crate_def_map(&db, krate);
     }
 
     let all_crates_before = db.all_crates();
@@ -94,11 +107,11 @@
 
     let events = db.log_executed(|| {
         for &krate in db.all_crates().iter() {
-            db.crate_def_map(krate);
+            crate_def_map(&db, krate);
         }
     });
     let invalidated_def_maps =
-        events.iter().filter(|event| event.contains("crate_def_map")).count();
+        events.iter().filter(|event| event.contains("crate_local_def_map")).count();
     assert_eq!(invalidated_def_maps, 1, "{events:#?}")
 }
 
@@ -330,7 +343,7 @@
     let krate = db.test_crate();
     {
         let events = db.log_executed(|| {
-            let crate_def_map = db.crate_def_map(krate);
+            let crate_def_map = crate_def_map(&db, krate);
             let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
             assert_eq!(module_data.scope.resolutions().count(), 4);
         });
@@ -352,7 +365,7 @@
 
     {
         let events = db.log_executed(|| {
-            let crate_def_map = db.crate_def_map(krate);
+            let crate_def_map = crate_def_map(&db, krate);
             let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
             assert_eq!(module_data.scope.resolutions().count(), 4);
         });
@@ -403,7 +416,7 @@
 
     {
         let events = db.log_executed(|| {
-            let crate_def_map = db.crate_def_map(krate);
+            let crate_def_map = crate_def_map(&db, krate);
             let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
             assert_eq!(module_data.scope.resolutions().count(), 8);
             assert_eq!(module_data.scope.impls().count(), 1);
diff --git a/crates/hir-def/src/nameres/tests/macros.rs b/crates/hir-def/src/nameres/tests/macros.rs
index 5f8a015..3cba88e 100644
--- a/crates/hir-def/src/nameres/tests/macros.rs
+++ b/crates/hir-def/src/nameres/tests/macros.rs
@@ -736,7 +736,7 @@
 
 #[test]
 fn macro_dollar_crate_is_correct_in_derive_meta() {
-    let map = compute_crate_def_map(
+    compute_crate_def_map(
         r#"
 //- minicore: derive, clone
 //- /main.rs crate:main deps:lib
@@ -753,13 +753,13 @@
 
 pub use core::clone::Clone;
 "#,
+        |map| assert_eq!(map.modules[DefMap::ROOT].scope.impls().len(), 1),
     );
-    assert_eq!(map.modules[DefMap::ROOT].scope.impls().len(), 1);
 }
 
 #[test]
 fn expand_derive() {
-    let map = compute_crate_def_map(
+    compute_crate_def_map(
         r#"
 //- /main.rs crate:main deps:core
 use core::Copy;
@@ -775,8 +775,8 @@
 #[rustc_builtin_macro]
 pub macro Clone {}
 "#,
+        |map| assert_eq!(map.modules[DefMap::ROOT].scope.impls().len(), 2),
     );
-    assert_eq!(map.modules[DefMap::ROOT].scope.impls().len(), 2);
 }
 
 #[test]
@@ -803,7 +803,7 @@
 fn builtin_derive_with_unresolved_attributes_fall_back() {
     // Tests that we still resolve derives after ignoring an unresolved attribute.
     cov_mark::check!(unresolved_attribute_fallback);
-    let map = compute_crate_def_map(
+    compute_crate_def_map(
         r#"
 //- /main.rs crate:main deps:core
 use core::{Clone, derive};
@@ -818,8 +818,8 @@
 #[rustc_builtin_macro]
 pub macro Clone {}
 "#,
+        |map| assert_eq!(map.modules[DefMap::ROOT].scope.impls().len(), 1),
     );
-    assert_eq!(map.modules[DefMap::ROOT].scope.impls().len(), 1);
 }
 
 #[test]
@@ -1096,7 +1096,7 @@
 "#,
     );
     let krate = *db.all_crates().last().expect("no crate graph present");
-    let def_map = db.crate_def_map(krate);
+    let def_map = crate_def_map(&db, krate);
 
     assert_eq!(def_map.data.exported_derives.len(), 1);
     match def_map.data.exported_derives.values().next() {
@@ -1446,7 +1446,7 @@
     "#,
     );
     let krate = *db.all_crates().last().expect("no crate graph present");
-    let def_map = db.crate_def_map(krate);
+    let def_map = crate_def_map(&db, krate);
 
     let root_module = &def_map[DefMap::ROOT].scope;
     assert!(
@@ -1544,7 +1544,7 @@
 
 #[test]
 fn macro_sub_namespace() {
-    let map = compute_crate_def_map(
+    compute_crate_def_map(
         r#"
 //- minicore: derive, clone
 macro_rules! Clone { () => {} }
@@ -1553,8 +1553,8 @@
 #[derive(Clone)]
 struct S;
     "#,
+        |map| assert_eq!(map.modules[DefMap::ROOT].scope.impls().len(), 1),
     );
-    assert_eq!(map.modules[DefMap::ROOT].scope.impls().len(), 1);
 }
 
 #[test]
diff --git a/crates/hir-def/src/nameres/tests/mod_resolution.rs b/crates/hir-def/src/nameres/tests/mod_resolution.rs
index 071b55c..9c97e42 100644
--- a/crates/hir-def/src/nameres/tests/mod_resolution.rs
+++ b/crates/hir-def/src/nameres/tests/mod_resolution.rs
@@ -839,6 +839,7 @@
 #[path = "./foo.rs"]
 mod foo;
 "#,
+        |_| (),
     );
 
     compute_crate_def_map(
@@ -852,6 +853,7 @@
 #[path = "./foo.rs"]
 mod foo;
 "#,
+        |_| (),
     );
 }
 
@@ -894,3 +896,149 @@
         "#]],
     )
 }
+
+#[test]
+fn invalid_imports() {
+    check(
+        r#"
+//- /main.rs
+mod module;
+
+use self::module::S::new;
+use self::module::unresolved;
+use self::module::C::const_based;
+use self::module::Enum::Variant::NoAssoc;
+
+//- /module.rs
+pub struct S;
+impl S {
+    pub fn new() {}
+}
+pub const C: () = ();
+pub enum Enum {
+    Variant,
+}
+        "#,
+        expect![[r#"
+            crate
+            NoAssoc: _
+            const_based: _
+            module: t
+            new: _
+            unresolved: _
+
+            crate::module
+            C: v
+            Enum: t
+            S: t v
+        "#]],
+    );
+}
+
+#[test]
+fn trait_item_imports_same_crate() {
+    check(
+        r#"
+//- /main.rs
+mod module;
+
+use self::module::Trait::{AssocType, ASSOC_CONST, MACRO_CONST, method};
+
+//- /module.rs
+macro_rules! m {
+    ($name:ident) => { const $name: () = (); };
+}
+pub trait Trait {
+    type AssocType;
+    const ASSOC_CONST: ();
+    fn method(&self);
+    m!(MACRO_CONST);
+}
+        "#,
+        expect![[r#"
+            crate
+            ASSOC_CONST: _
+            AssocType: _
+            MACRO_CONST: _
+            method: _
+            module: t
+
+            crate::module
+            Trait: t
+        "#]],
+    );
+    check(
+        r#"
+//- /main.rs
+mod module;
+
+use self::module::Trait::*;
+
+//- /module.rs
+macro_rules! m {
+    ($name:ident) => { const $name: () = (); };
+}
+pub trait Trait {
+    type AssocType;
+    const ASSOC_CONST: ();
+    fn method(&self);
+    m!(MACRO_CONST);
+}
+        "#,
+        expect![[r#"
+            crate
+            module: t
+
+            crate::module
+            Trait: t
+        "#]],
+    );
+}
+
+#[test]
+fn trait_item_imports_differing_crate() {
+    check(
+        r#"
+//- /main.rs deps:lib crate:main
+use lib::Trait::{AssocType, ASSOC_CONST, MACRO_CONST, method};
+
+//- /lib.rs crate:lib
+macro_rules! m {
+    ($name:ident) => { const $name: () = (); };
+}
+pub trait Trait {
+    type AssocType;
+    const ASSOC_CONST: ();
+    fn method(&self);
+    m!(MACRO_CONST);
+}
+        "#,
+        expect![[r#"
+            crate
+            ASSOC_CONST: _
+            AssocType: _
+            MACRO_CONST: _
+            method: _
+        "#]],
+    );
+    check(
+        r#"
+//- /main.rs deps:lib crate:main
+use lib::Trait::*;
+
+//- /lib.rs crate:lib
+macro_rules! m {
+    ($name:ident) => { const $name: () = (); };
+}
+pub trait Trait {
+    type AssocType;
+    const ASSOC_CONST: ();
+    fn method(&self);
+    m!(MACRO_CONST);
+}
+        "#,
+        expect![[r#"
+            crate
+        "#]],
+    );
+}
diff --git a/crates/hir-def/src/resolver.rs b/crates/hir-def/src/resolver.rs
index 8a8d170..16988dd 100644
--- a/crates/hir-def/src/resolver.rs
+++ b/crates/hir-def/src/resolver.rs
@@ -34,30 +34,30 @@
     item_scope::{BUILTIN_SCOPE, BuiltinShadowMode, ImportOrExternCrate, ImportOrGlob, ItemScope},
     item_tree::ImportAlias,
     lang_item::LangItemTarget,
-    nameres::{DefMap, LocalDefMap, MacroSubNs, ResolvePathResultPrefixInfo},
+    nameres::{DefMap, LocalDefMap, MacroSubNs, ResolvePathResultPrefixInfo, block_def_map},
     per_ns::PerNs,
     type_ref::LifetimeRef,
     visibility::{RawVisibility, Visibility},
 };
 
 #[derive(Debug, Clone)]
-pub struct Resolver {
+pub struct Resolver<'db> {
     /// The stack of scopes, where the inner-most scope is the last item.
     ///
     /// When using, you generally want to process the scopes in reverse order,
     /// there's `scopes` *method* for that.
-    scopes: Vec<Scope>,
-    module_scope: ModuleItemMap,
+    scopes: Vec<Scope<'db>>,
+    module_scope: ModuleItemMap<'db>,
 }
 
 #[derive(Clone)]
-struct ModuleItemMap {
-    def_map: Arc<DefMap>,
-    local_def_map: Arc<LocalDefMap>,
+struct ModuleItemMap<'db> {
+    def_map: &'db DefMap,
+    local_def_map: &'db LocalDefMap,
     module_id: LocalModuleId,
 }
 
-impl fmt::Debug for ModuleItemMap {
+impl fmt::Debug for ModuleItemMap<'_> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("ModuleItemMap").field("module_id", &self.module_id).finish()
     }
@@ -80,9 +80,9 @@
 }
 
 #[derive(Debug, Clone)]
-enum Scope {
+enum Scope<'db> {
     /// All the items and imported names of a module
-    BlockScope(ModuleItemMap),
+    BlockScope(ModuleItemMap<'db>),
     /// Brings the generic parameters of an item into scope as well as the `Self` type alias /
     /// generic for ADTs and impls.
     GenericParams { def: GenericDefId, params: Arc<GenericParams> },
@@ -133,7 +133,7 @@
     LifetimeParam(LifetimeParamId),
 }
 
-impl Resolver {
+impl<'db> Resolver<'db> {
     /// Resolve known trait from std, like `std::futures::Future`
     pub fn resolve_known_trait(&self, db: &dyn DefDatabase, path: &ModPath) -> Option<TraitId> {
         let res = self.resolve_module_path(db, path, BuiltinShadowMode::Other).take_types()?;
@@ -580,7 +580,7 @@
         for scope in self.scopes() {
             scope.process_names(&mut res, db);
         }
-        let ModuleItemMap { ref def_map, module_id, ref local_def_map } = self.module_scope;
+        let ModuleItemMap { def_map, module_id, local_def_map } = self.module_scope;
         // FIXME: should we provide `self` here?
         // f(
         //     Name::self_param(),
@@ -842,14 +842,14 @@
     #[must_use]
     pub fn update_to_inner_scope(
         &mut self,
-        db: &dyn DefDatabase,
+        db: &'db dyn DefDatabase,
         owner: DefWithBodyId,
         expr_id: ExprId,
     ) -> UpdateGuard {
         #[inline(always)]
-        fn append_expr_scope(
-            db: &dyn DefDatabase,
-            resolver: &mut Resolver,
+        fn append_expr_scope<'db>(
+            db: &'db dyn DefDatabase,
+            resolver: &mut Resolver<'db>,
             owner: DefWithBodyId,
             expr_scopes: &Arc<ExprScopes>,
             scope_id: ScopeId,
@@ -863,7 +863,7 @@
                 scope_id,
             }));
             if let Some(block) = expr_scopes.block(scope_id) {
-                let def_map = db.block_def_map(block);
+                let def_map = block_def_map(db, block);
                 let local_def_map = block.lookup(db).module.only_local_def_map(db);
                 resolver.scopes.push(Scope::BlockScope(ModuleItemMap {
                     def_map,
@@ -945,8 +945,8 @@
 
 pub struct UpdateGuard(usize);
 
-impl Resolver {
-    fn scopes(&self) -> impl Iterator<Item = &Scope> {
+impl<'db> Resolver<'db> {
+    fn scopes(&self) -> impl Iterator<Item = &Scope<'db>> {
         self.scopes.iter().rev()
     }
 
@@ -970,12 +970,12 @@
     fn item_scope_(&self) -> (&DefMap, &LocalDefMap, LocalModuleId) {
         self.scopes()
             .find_map(|scope| match scope {
-                Scope::BlockScope(m) => Some((&*m.def_map, &*m.local_def_map, m.module_id)),
+                Scope::BlockScope(m) => Some((m.def_map, m.local_def_map, m.module_id)),
                 _ => None,
             })
             .unwrap_or((
-                &self.module_scope.def_map,
-                &self.module_scope.local_def_map,
+                self.module_scope.def_map,
+                self.module_scope.local_def_map,
                 self.module_scope.module_id,
             ))
     }
@@ -992,8 +992,8 @@
     Label(LabelId),
 }
 
-impl Scope {
-    fn process_names(&self, acc: &mut ScopeNames, db: &dyn DefDatabase) {
+impl<'db> Scope<'db> {
+    fn process_names(&self, acc: &mut ScopeNames, db: &'db dyn DefDatabase) {
         match self {
             Scope::BlockScope(m) => {
                 m.def_map[m.module_id].scope.entries().for_each(|(name, def)| {
@@ -1047,7 +1047,11 @@
     }
 }
 
-pub fn resolver_for_expr(db: &dyn DefDatabase, owner: DefWithBodyId, expr_id: ExprId) -> Resolver {
+pub fn resolver_for_expr(
+    db: &dyn DefDatabase,
+    owner: DefWithBodyId,
+    expr_id: ExprId,
+) -> Resolver<'_> {
     let r = owner.resolver(db);
     let scopes = db.expr_scopes(owner);
     let scope_id = scopes.scope_for(expr_id);
@@ -1058,25 +1062,25 @@
     db: &dyn DefDatabase,
     owner: DefWithBodyId,
     scope_id: Option<ScopeId>,
-) -> Resolver {
+) -> Resolver<'_> {
     let r = owner.resolver(db);
     let scopes = db.expr_scopes(owner);
     resolver_for_scope_(db, scopes, scope_id, r, owner)
 }
 
-fn resolver_for_scope_(
-    db: &dyn DefDatabase,
+fn resolver_for_scope_<'db>(
+    db: &'db dyn DefDatabase,
     scopes: Arc<ExprScopes>,
     scope_id: Option<ScopeId>,
-    mut r: Resolver,
+    mut r: Resolver<'db>,
     owner: DefWithBodyId,
-) -> Resolver {
+) -> Resolver<'db> {
     let scope_chain = scopes.scope_chain(scope_id).collect::<Vec<_>>();
     r.scopes.reserve(scope_chain.len());
 
     for scope in scope_chain.into_iter().rev() {
         if let Some(block) = scopes.block(scope) {
-            let def_map = db.block_def_map(block);
+            let def_map = block_def_map(db, block);
             let local_def_map = block.lookup(db).module.only_local_def_map(db);
             r = r.push_block_scope(def_map, local_def_map);
             // FIXME: This adds as many module scopes as there are blocks, but resolving in each
@@ -1092,18 +1096,26 @@
     r
 }
 
-impl Resolver {
-    fn push_scope(mut self, scope: Scope) -> Resolver {
+impl<'db> Resolver<'db> {
+    fn push_scope(mut self, scope: Scope<'db>) -> Resolver<'db> {
         self.scopes.push(scope);
         self
     }
 
-    fn push_generic_params_scope(self, db: &dyn DefDatabase, def: GenericDefId) -> Resolver {
+    fn push_generic_params_scope(
+        self,
+        db: &'db dyn DefDatabase,
+        def: GenericDefId,
+    ) -> Resolver<'db> {
         let params = db.generic_params(def);
         self.push_scope(Scope::GenericParams { def, params })
     }
 
-    fn push_block_scope(self, def_map: Arc<DefMap>, local_def_map: Arc<LocalDefMap>) -> Resolver {
+    fn push_block_scope(
+        self,
+        def_map: &'db DefMap,
+        local_def_map: &'db LocalDefMap,
+    ) -> Resolver<'db> {
         self.push_scope(Scope::BlockScope(ModuleItemMap {
             def_map,
             local_def_map,
@@ -1116,19 +1128,19 @@
         owner: DefWithBodyId,
         expr_scopes: Arc<ExprScopes>,
         scope_id: ScopeId,
-    ) -> Resolver {
+    ) -> Resolver<'db> {
         self.push_scope(Scope::ExprScope(ExprScope { owner, expr_scopes, scope_id }))
     }
 }
 
-impl ModuleItemMap {
+impl<'db> ModuleItemMap<'db> {
     fn resolve_path_in_value_ns(
         &self,
-        db: &dyn DefDatabase,
+        db: &'db dyn DefDatabase,
         path: &ModPath,
     ) -> Option<(ResolveValueResult, ResolvePathResultPrefixInfo)> {
         let (module_def, unresolved_idx, prefix_info) = self.def_map.resolve_path_locally(
-            &self.local_def_map,
+            self.local_def_map,
             db,
             self.module_id,
             path,
@@ -1167,7 +1179,7 @@
     ) -> Option<(TypeNs, Option<usize>, Option<ImportOrExternCrate>, ResolvePathResultPrefixInfo)>
     {
         let (module_def, idx, prefix_info) = self.def_map.resolve_path_locally(
-            &self.local_def_map,
+            self.local_def_map,
             db,
             self.module_id,
             path,
@@ -1263,11 +1275,11 @@
 
 pub trait HasResolver: Copy {
     /// Builds a resolver for type references inside this def.
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver;
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_>;
 }
 
 impl HasResolver for ModuleId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         let (mut def_map, local_def_map) = self.local_def_map(db);
         let mut module_id = self.local_id;
 
@@ -1289,21 +1301,17 @@
         }
         let mut resolver = Resolver {
             scopes: Vec::with_capacity(modules.len()),
-            module_scope: ModuleItemMap {
-                def_map,
-                local_def_map: local_def_map.clone(),
-                module_id,
-            },
+            module_scope: ModuleItemMap { def_map, local_def_map, module_id },
         };
         for def_map in modules.into_iter().rev() {
-            resolver = resolver.push_block_scope(def_map, local_def_map.clone());
+            resolver = resolver.push_block_scope(def_map, local_def_map);
         }
         resolver
     }
 }
 
 impl HasResolver for CrateRootModuleId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         let (def_map, local_def_map) = self.local_def_map(db);
         Resolver {
             scopes: vec![],
@@ -1313,75 +1321,75 @@
 }
 
 impl HasResolver for TraitId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         lookup_resolver(db, self).push_generic_params_scope(db, self.into())
     }
 }
 
 impl HasResolver for TraitAliasId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         lookup_resolver(db, self).push_generic_params_scope(db, self.into())
     }
 }
 
 impl<T: Into<AdtId> + Copy> HasResolver for T {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         let def = self.into();
         def.module(db).resolver(db).push_generic_params_scope(db, def.into())
     }
 }
 
 impl HasResolver for FunctionId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         lookup_resolver(db, self).push_generic_params_scope(db, self.into())
     }
 }
 
 impl HasResolver for ConstId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         lookup_resolver(db, self)
     }
 }
 
 impl HasResolver for StaticId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         lookup_resolver(db, self)
     }
 }
 
 impl HasResolver for TypeAliasId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         lookup_resolver(db, self).push_generic_params_scope(db, self.into())
     }
 }
 
 impl HasResolver for ImplId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         self.lookup(db).container.resolver(db).push_generic_params_scope(db, self.into())
     }
 }
 
 impl HasResolver for ExternBlockId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         // Same as parent's
         lookup_resolver(db, self)
     }
 }
 
 impl HasResolver for ExternCrateId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         lookup_resolver(db, self)
     }
 }
 
 impl HasResolver for UseId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         lookup_resolver(db, self)
     }
 }
 
 impl HasResolver for DefWithBodyId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         match self {
             DefWithBodyId::ConstId(c) => c.resolver(db),
             DefWithBodyId::FunctionId(f) => f.resolver(db),
@@ -1392,7 +1400,7 @@
 }
 
 impl HasResolver for ItemContainerId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         match self {
             ItemContainerId::ModuleId(it) => it.resolver(db),
             ItemContainerId::TraitId(it) => it.resolver(db),
@@ -1403,7 +1411,7 @@
 }
 
 impl HasResolver for GenericDefId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         match self {
             GenericDefId::FunctionId(inner) => inner.resolver(db),
             GenericDefId::AdtId(adt) => adt.resolver(db),
@@ -1418,13 +1426,13 @@
 }
 
 impl HasResolver for EnumVariantId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         self.lookup(db).parent.resolver(db)
     }
 }
 
 impl HasResolver for VariantId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         match self {
             VariantId::EnumVariantId(it) => it.resolver(db),
             VariantId::StructId(it) => it.resolver(db),
@@ -1434,7 +1442,7 @@
 }
 
 impl HasResolver for MacroId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         match self {
             MacroId::Macro2Id(it) => it.resolver(db),
             MacroId::MacroRulesId(it) => it.resolver(db),
@@ -1444,29 +1452,29 @@
 }
 
 impl HasResolver for Macro2Id {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         lookup_resolver(db, self)
     }
 }
 
 impl HasResolver for ProcMacroId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         lookup_resolver(db, self)
     }
 }
 
 impl HasResolver for MacroRulesId {
-    fn resolver(self, db: &dyn DefDatabase) -> Resolver {
+    fn resolver(self, db: &dyn DefDatabase) -> Resolver<'_> {
         lookup_resolver(db, self)
     }
 }
 
-fn lookup_resolver<'db>(
-    db: &(dyn DefDatabase + 'db),
+fn lookup_resolver(
+    db: &dyn DefDatabase,
     lookup: impl Lookup<
         Database = dyn DefDatabase,
         Data = impl ItemTreeLoc<Container = impl HasResolver>,
     >,
-) -> Resolver {
+) -> Resolver<'_> {
     lookup.lookup(db).container().resolver(db)
 }
diff --git a/crates/hir-def/src/test_db.rs b/crates/hir-def/src/test_db.rs
index 4709754..e30a5b6 100644
--- a/crates/hir-def/src/test_db.rs
+++ b/crates/hir-def/src/test_db.rs
@@ -15,7 +15,7 @@
 use crate::{
     LocalModuleId, Lookup, ModuleDefId, ModuleId,
     db::DefDatabase,
-    nameres::{DefMap, ModuleSource},
+    nameres::{DefMap, ModuleSource, block_def_map, crate_def_map},
     src::HasSource,
 };
 
@@ -30,9 +30,18 @@
 
 impl Default for TestDB {
     fn default() -> Self {
+        let events = <Arc<Mutex<Option<Vec<salsa::Event>>>>>::default();
         let mut this = Self {
-            storage: Default::default(),
-            events: Default::default(),
+            storage: salsa::Storage::new(Some(Box::new({
+                let events = events.clone();
+                move |event| {
+                    let mut events = events.lock().unwrap();
+                    if let Some(events) = &mut *events {
+                        events.push(event);
+                    }
+                }
+            }))),
+            events,
             files: Default::default(),
             crates_map: Default::default(),
         };
@@ -45,15 +54,7 @@
 }
 
 #[salsa_macros::db]
-impl salsa::Database for TestDB {
-    fn salsa_event(&self, event: &dyn std::ops::Fn() -> salsa::Event) {
-        let mut events = self.events.lock().unwrap();
-        if let Some(events) = &mut *events {
-            let event = event();
-            events.push(event);
-        }
-    }
-}
+impl salsa::Database for TestDB {}
 
 impl fmt::Debug for TestDB {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
@@ -133,7 +134,7 @@
 
     pub(crate) fn module_for_file(&self, file_id: FileId) -> ModuleId {
         for &krate in self.relevant_crates(file_id).iter() {
-            let crate_def_map = self.crate_def_map(krate);
+            let crate_def_map = crate_def_map(self, krate);
             for (local_id, data) in crate_def_map.modules() {
                 if data.origin.file_id().map(|file_id| file_id.file_id(self)) == Some(file_id) {
                     return crate_def_map.module_id(local_id);
@@ -146,16 +147,16 @@
     pub(crate) fn module_at_position(&self, position: FilePosition) -> ModuleId {
         let file_module = self.module_for_file(position.file_id.file_id(self));
         let mut def_map = file_module.def_map(self);
-        let module = self.mod_at_position(&def_map, position);
+        let module = self.mod_at_position(def_map, position);
 
-        def_map = match self.block_at_position(&def_map, position) {
+        def_map = match self.block_at_position(def_map, position) {
             Some(it) => it,
             None => return def_map.module_id(module),
         };
         loop {
-            let new_map = self.block_at_position(&def_map, position);
+            let new_map = self.block_at_position(def_map, position);
             match new_map {
-                Some(new_block) if !Arc::ptr_eq(&new_block, &def_map) => {
+                Some(new_block) if !std::ptr::eq(&new_block, &def_map) => {
                     def_map = new_block;
                 }
                 _ => {
@@ -206,7 +207,7 @@
         res
     }
 
-    fn block_at_position(&self, def_map: &DefMap, position: FilePosition) -> Option<Arc<DefMap>> {
+    fn block_at_position(&self, def_map: &DefMap, position: FilePosition) -> Option<&DefMap> {
         // Find the smallest (innermost) function in `def_map` containing the cursor.
         let mut size = None;
         let mut fn_def = None;
@@ -263,7 +264,7 @@
             let mut containing_blocks =
                 scopes.scope_chain(Some(scope)).filter_map(|scope| scopes.block(scope));
 
-            if let Some(block) = containing_blocks.next().map(|block| self.block_def_map(block)) {
+            if let Some(block) = containing_blocks.next().map(|block| block_def_map(self, block)) {
                 return Some(block);
             }
         }
diff --git a/crates/hir-def/src/visibility.rs b/crates/hir-def/src/visibility.rs
index b42c8d3..3c67ee9 100644
--- a/crates/hir-def/src/visibility.rs
+++ b/crates/hir-def/src/visibility.rs
@@ -28,7 +28,7 @@
 impl Visibility {
     pub fn resolve(
         db: &dyn DefDatabase,
-        resolver: &crate::resolver::Resolver,
+        resolver: &crate::resolver::Resolver<'_>,
         raw_vis: &RawVisibility,
     ) -> Self {
         // we fall back to public visibility (i.e. fail open) if the path can't be resolved
@@ -50,7 +50,7 @@
             return false;
         }
         let def_map = from_module.def_map(db);
-        Self::is_visible_from_def_map_(db, &def_map, to_module, from_module.local_id)
+        Self::is_visible_from_def_map_(db, def_map, to_module, from_module.local_id)
     }
 
     pub(crate) fn is_visible_from_def_map(
@@ -116,7 +116,7 @@
                     match def_map.parent() {
                         Some(module) => {
                             parent_arc = module.def_map(db);
-                            def_map = &*parent_arc;
+                            def_map = parent_arc;
                             from_module = module.local_id;
                         }
                         // Reached the root module, nothing left to check.
@@ -257,7 +257,7 @@
 }
 
 #[inline]
-fn trait_vis(db: &dyn DefDatabase, resolver: &Resolver, trait_id: TraitId) -> Visibility {
+fn trait_vis(db: &dyn DefDatabase, resolver: &Resolver<'_>, trait_id: TraitId) -> Visibility {
     let ItemLoc { id: tree_id, .. } = trait_id.lookup(db);
     let item_tree = tree_id.item_tree(db);
     let tr_def = &item_tree[tree_id.value];
diff --git a/crates/hir-expand/src/attrs.rs b/crates/hir-expand/src/attrs.rs
index bb17eb0..94c9771 100644
--- a/crates/hir-expand/src/attrs.rs
+++ b/crates/hir-expand/src/attrs.rs
@@ -1,4 +1,5 @@
 //! A higher level attributes based on TokenTree, with also some shortcuts.
+use std::iter;
 use std::{borrow::Cow, fmt, ops};
 
 use base_db::Crate;
@@ -122,16 +123,15 @@
             (None, entries @ Some(_)) => Self { entries },
             (Some(entries), None) => Self { entries: Some(entries.clone()) },
             (Some(a), Some(b)) => {
-                let last_ast_index = a.slice.last().map_or(0, |it| it.id.ast_index() + 1) as u32;
+                let last_ast_index = a.slice.last().map_or(0, |it| it.id.ast_index() + 1);
                 let items = a
                     .slice
                     .iter()
                     .cloned()
                     .chain(b.slice.iter().map(|it| {
                         let mut it = it.clone();
-                        it.id.id = (it.id.ast_index() as u32 + last_ast_index)
-                            | ((it.id.cfg_attr_index().unwrap_or(0) as u32)
-                                << AttrId::AST_INDEX_BITS);
+                        let id = it.id.ast_index() + last_ast_index;
+                        it.id = AttrId::new(id, it.id.is_inner_attr());
                         it
                     }))
                     .collect::<Vec<_>>();
@@ -175,25 +175,20 @@
 // FIXME: This only handles a single level of cfg_attr nesting
 // that is `#[cfg_attr(all(), cfg_attr(all(), cfg(any())))]` breaks again
 impl AttrId {
-    const CFG_ATTR_BITS: usize = 7;
-    const AST_INDEX_MASK: usize = 0x00FF_FFFF;
-    const AST_INDEX_BITS: usize = Self::AST_INDEX_MASK.count_ones() as usize;
-    const CFG_ATTR_SET_BITS: u32 = 1 << 31;
+    const INNER_ATTR_SET_BIT: u32 = 1 << 31;
+
+    pub fn new(id: usize, is_inner: bool) -> Self {
+        assert!(id <= !Self::INNER_ATTR_SET_BIT as usize);
+        let id = id as u32;
+        Self { id: if is_inner { id | Self::INNER_ATTR_SET_BIT } else { id } }
+    }
 
     pub fn ast_index(&self) -> usize {
-        self.id as usize & Self::AST_INDEX_MASK
+        (self.id & !Self::INNER_ATTR_SET_BIT) as usize
     }
 
-    pub fn cfg_attr_index(&self) -> Option<usize> {
-        if self.id & Self::CFG_ATTR_SET_BITS == 0 {
-            None
-        } else {
-            Some(self.id as usize >> Self::AST_INDEX_BITS)
-        }
-    }
-
-    pub fn with_cfg_attr(self, idx: usize) -> AttrId {
-        AttrId { id: self.id | ((idx as u32) << Self::AST_INDEX_BITS) | Self::CFG_ATTR_SET_BITS }
+    pub fn is_inner_attr(&self) -> bool {
+        self.id & Self::INNER_ATTR_SET_BIT != 0
     }
 }
 
@@ -333,10 +328,7 @@
             None => return smallvec![self.clone()],
         };
         let index = self.id;
-        let attrs = parts
-            .enumerate()
-            .take(1 << AttrId::CFG_ATTR_BITS)
-            .filter_map(|(idx, attr)| Attr::from_tt(db, attr, index.with_cfg_attr(idx)));
+        let attrs = parts.filter_map(|attr| Attr::from_tt(db, attr, index));
 
         let cfg = TopSubtree::from_token_trees(subtree.top_subtree().delimiter, cfg);
         let cfg = CfgExpr::parse(&cfg);
@@ -467,13 +459,18 @@
 pub fn collect_attrs(
     owner: &dyn ast::HasAttrs,
 ) -> impl Iterator<Item = (AttrId, Either<ast::Attr, ast::Comment>)> {
-    let inner_attrs = inner_attributes(owner.syntax()).into_iter().flatten();
-    let outer_attrs =
-        ast::AttrDocCommentIter::from_syntax_node(owner.syntax()).filter(|el| match el {
+    let inner_attrs =
+        inner_attributes(owner.syntax()).into_iter().flatten().zip(iter::repeat(true));
+    let outer_attrs = ast::AttrDocCommentIter::from_syntax_node(owner.syntax())
+        .filter(|el| match el {
             Either::Left(attr) => attr.kind().is_outer(),
             Either::Right(comment) => comment.is_outer(),
-        });
-    outer_attrs.chain(inner_attrs).enumerate().map(|(id, attr)| (AttrId { id: id as u32 }, attr))
+        })
+        .zip(iter::repeat(false));
+    outer_attrs
+        .chain(inner_attrs)
+        .enumerate()
+        .map(|(id, (attr, is_inner))| (AttrId::new(id, is_inner), attr))
 }
 
 fn inner_attributes(
diff --git a/crates/hir-expand/src/builtin/derive_macro.rs b/crates/hir-expand/src/builtin/derive_macro.rs
index 68283b9..d135584 100644
--- a/crates/hir-expand/src/builtin/derive_macro.rs
+++ b/crates/hir-expand/src/builtin/derive_macro.rs
@@ -1,5 +1,6 @@
 //! Builtin derives.
 
+use either::Either;
 use intern::sym;
 use itertools::{Itertools, izip};
 use parser::SyntaxKind;
@@ -1179,10 +1180,10 @@
                 };
                 new_predicates.push(
                     make::where_pred(
-                        make::ty_path(make::path_from_segments(
+                        Either::Right(make::ty_path(make::path_from_segments(
                             [make::path_segment(new_bounds_target)],
                             false,
-                        )),
+                        ))),
                         new_bounds,
                     )
                     .clone_for_update(),
@@ -1245,7 +1246,9 @@
                             substitute_type_in_bound(ty, &pointee_param_name.text(), ADDED_PARAM)
                         })
                     });
-                new_predicates.push(make::where_pred(pred_target, new_bounds).clone_for_update());
+                new_predicates.push(
+                    make::where_pred(Either::Right(pred_target), new_bounds).clone_for_update(),
+                );
             }
         }
 
@@ -1260,10 +1263,10 @@
         // Find the `#[pointee]` parameter and add an `Unsize<__S>` bound to it.
         where_clause.add_predicate(
             make::where_pred(
-                make::ty_path(make::path_from_segments(
+                Either::Right(make::ty_path(make::path_from_segments(
                     [make::path_segment(make::name_ref(&pointee_param_name.text()))],
                     false,
-                )),
+                ))),
                 [make::type_bound(make::ty_path(make::path_from_segments(
                     [
                         make::path_segment(make::name_ref("core")),
diff --git a/crates/hir-expand/src/builtin/fn_macro.rs b/crates/hir-expand/src/builtin/fn_macro.rs
index 621e174..3180b8d 100644
--- a/crates/hir-expand/src/builtin/fn_macro.rs
+++ b/crates/hir-expand/src/builtin/fn_macro.rs
@@ -140,7 +140,6 @@
     EagerExpander:
     (compile_error, CompileError) => compile_error_expand,
     (concat, Concat) => concat_expand,
-    (concat_idents, ConcatIdents) => concat_idents_expand,
     (concat_bytes, ConcatBytes) => concat_bytes_expand,
     (include, Include) => include_expand,
     (include_bytes, IncludeBytes) => include_bytes_expand,
@@ -452,7 +451,10 @@
         Some(_) => (),
         None => span = Some(s),
     };
-    for (i, mut t) in tt.iter().enumerate() {
+
+    let mut i = 0;
+    let mut iter = tt.iter();
+    while let Some(mut t) = iter.next() {
         // FIXME: hack on top of a hack: `$e:expr` captures get surrounded in parentheses
         // to ensure the right parsing order, so skip the parentheses here. Ideally we'd
         // implement rustc's model. cc https://github.com/rust-lang/rust-analyzer/pull/10623
@@ -504,10 +506,40 @@
                 record_span(id.span);
             }
             TtElement::Leaf(tt::Leaf::Punct(punct)) if i % 2 == 1 && punct.char == ',' => (),
+            // handle negative numbers
+            TtElement::Leaf(tt::Leaf::Punct(punct)) if i % 2 == 0 && punct.char == '-' => {
+                let t = match iter.next() {
+                    Some(t) => t,
+                    None => {
+                        err.get_or_insert(ExpandError::other(
+                            call_site,
+                            "unexpected end of input after '-'",
+                        ));
+                        break;
+                    }
+                };
+
+                match t {
+                    TtElement::Leaf(tt::Leaf::Literal(it))
+                        if matches!(it.kind, tt::LitKind::Integer | tt::LitKind::Float) =>
+                    {
+                        format_to!(text, "-{}", it.symbol.as_str());
+                        record_span(punct.span.cover(it.span));
+                    }
+                    _ => {
+                        err.get_or_insert(ExpandError::other(
+                            call_site,
+                            "expected integer or floating pointer number after '-'",
+                        ));
+                        break;
+                    }
+                }
+            }
             _ => {
                 err.get_or_insert(ExpandError::other(call_site, "unexpected token"));
             }
         }
+        i += 1;
     }
     let span = span.unwrap_or_else(|| tt.top_subtree().delimiter.open);
     ExpandResult { value: quote!(span =>#text), err }
@@ -627,30 +659,6 @@
     Ok(())
 }
 
-fn concat_idents_expand(
-    _db: &dyn ExpandDatabase,
-    _arg_id: MacroCallId,
-    tt: &tt::TopSubtree,
-    span: Span,
-) -> ExpandResult<tt::TopSubtree> {
-    let mut err = None;
-    let mut ident = String::new();
-    for (i, t) in tt.iter().enumerate() {
-        match t {
-            TtElement::Leaf(tt::Leaf::Ident(id)) => {
-                ident.push_str(id.sym.as_str());
-            }
-            TtElement::Leaf(tt::Leaf::Punct(punct)) if i % 2 == 1 && punct.char == ',' => (),
-            _ => {
-                err.get_or_insert(ExpandError::other(span, "unexpected token"));
-            }
-        }
-    }
-    // FIXME merge spans
-    let ident = tt::Ident { sym: Symbol::intern(&ident), span, is_raw: tt::IdentIsRaw::No };
-    ExpandResult { value: quote!(span =>#ident), err }
-}
-
 fn relative_file(
     db: &dyn ExpandDatabase,
     call_id: MacroCallId,
diff --git a/crates/hir-expand/src/proc_macro.rs b/crates/hir-expand/src/proc_macro.rs
index 8a1a33d..1cd975b 100644
--- a/crates/hir-expand/src/proc_macro.rs
+++ b/crates/hir-expand/src/proc_macro.rs
@@ -19,18 +19,8 @@
     Attr,
 }
 
-pub trait AsAny: Any {
-    fn as_any(&self) -> &dyn Any;
-}
-
-impl<T: Any> AsAny for T {
-    fn as_any(&self) -> &dyn Any {
-        self
-    }
-}
-
 /// A proc-macro expander implementation.
-pub trait ProcMacroExpander: fmt::Debug + Send + Sync + RefUnwindSafe + AsAny {
+pub trait ProcMacroExpander: fmt::Debug + Send + Sync + RefUnwindSafe + Any {
     /// Run the expander with the given input subtree, optional attribute input subtree (for
     /// [`ProcMacroKind::Attr`]), environment variables, and span information.
     fn expand(
@@ -44,7 +34,9 @@
         current_dir: String,
     ) -> Result<tt::TopSubtree, ProcMacroExpansionError>;
 
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool;
+    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
+        other.type_id() == self.type_id()
+    }
 }
 
 impl PartialEq for dyn ProcMacroExpander {
diff --git a/crates/hir-ty/src/chalk_db.rs b/crates/hir-ty/src/chalk_db.rs
index cd799c0..22b96b5 100644
--- a/crates/hir-ty/src/chalk_db.rs
+++ b/crates/hir-ty/src/chalk_db.rs
@@ -259,7 +259,7 @@
     }
     fn well_known_trait_id(
         &self,
-        well_known_trait: rust_ir::WellKnownTrait,
+        well_known_trait: WellKnownTrait,
     ) -> Option<chalk_ir::TraitId<Interner>> {
         let lang_attr = lang_item_from_well_known_trait(well_known_trait);
         let trait_ = lang_attr.resolve_trait(self.db, self.krate)?;
diff --git a/crates/hir-ty/src/consteval.rs b/crates/hir-ty/src/consteval.rs
index d1a1e13..f903b06 100644
--- a/crates/hir-ty/src/consteval.rs
+++ b/crates/hir-ty/src/consteval.rs
@@ -91,7 +91,7 @@
 
 pub(crate) fn path_to_const<'g>(
     db: &dyn HirDatabase,
-    resolver: &Resolver,
+    resolver: &Resolver<'_>,
     path: &Path,
     mode: ParamLoweringMode,
     args: impl FnOnce() -> &'g Generics,
diff --git a/crates/hir-ty/src/diagnostics/expr.rs b/crates/hir-ty/src/diagnostics/expr.rs
index 5710641..9eb7ffe 100644
--- a/crates/hir-ty/src/diagnostics/expr.rs
+++ b/crates/hir-ty/src/diagnostics/expr.rs
@@ -25,7 +25,7 @@
 use typed_arena::Arena;
 
 use crate::{
-    Adjust, InferenceResult, Interner, Ty, TyExt, TyKind,
+    Adjust, InferenceResult, Interner, TraitEnvironment, Ty, TyExt, TyKind,
     db::HirDatabase,
     diagnostics::match_check::{
         self,
@@ -74,8 +74,9 @@
         let _p = tracing::info_span!("BodyValidationDiagnostic::collect").entered();
         let infer = db.infer(owner);
         let body = db.body(owner);
+        let env = db.trait_environment_for_body(owner);
         let mut validator =
-            ExprValidator { owner, body, infer, diagnostics: Vec::new(), validate_lints };
+            ExprValidator { owner, body, infer, diagnostics: Vec::new(), validate_lints, env };
         validator.validate_body(db);
         validator.diagnostics
     }
@@ -85,6 +86,7 @@
     owner: DefWithBodyId,
     body: Arc<Body>,
     infer: Arc<InferenceResult>,
+    env: Arc<TraitEnvironment>,
     diagnostics: Vec<BodyValidationDiagnostic>,
     validate_lints: bool,
 }
@@ -190,7 +192,7 @@
             return;
         }
 
-        let cx = MatchCheckCtx::new(self.owner.module(db), self.owner, db);
+        let cx = MatchCheckCtx::new(self.owner.module(db), self.owner, db, self.env.clone());
 
         let pattern_arena = Arena::new();
         let mut m_arms = Vec::with_capacity(arms.len());
@@ -317,11 +319,14 @@
             return;
         };
         let pattern_arena = Arena::new();
-        let cx = MatchCheckCtx::new(self.owner.module(db), self.owner, db);
+        let cx = MatchCheckCtx::new(self.owner.module(db), self.owner, db, self.env.clone());
         for stmt in &**statements {
             let &Statement::Let { pat, initializer, else_branch: None, .. } = stmt else {
                 continue;
             };
+            if self.infer.type_mismatch_for_pat(pat).is_some() {
+                continue;
+            }
             let Some(initializer) = initializer else { continue };
             let ty = &self.infer[initializer];
             if ty.contains_unknown() {
@@ -480,7 +485,7 @@
 }
 
 impl FilterMapNextChecker {
-    fn new(resolver: &hir_def::resolver::Resolver, db: &dyn HirDatabase) -> Self {
+    fn new(resolver: &hir_def::resolver::Resolver<'_>, db: &dyn HirDatabase) -> Self {
         // Find and store the FunctionIds for Iterator::filter_map and Iterator::next
         let (next_function_id, filter_map_function_id) = match LangItem::IteratorNext
             .resolve_function(db, resolver.krate())
diff --git a/crates/hir-ty/src/diagnostics/match_check/pat_analysis.rs b/crates/hir-ty/src/diagnostics/match_check/pat_analysis.rs
index 068fc22..dd82a0f 100644
--- a/crates/hir-ty/src/diagnostics/match_check/pat_analysis.rs
+++ b/crates/hir-ty/src/diagnostics/match_check/pat_analysis.rs
@@ -12,9 +12,10 @@
 };
 use smallvec::{SmallVec, smallvec};
 use stdx::never;
+use triomphe::Arc;
 
 use crate::{
-    AdtId, Interner, Scalar, Ty, TyExt, TyKind,
+    AdtId, Interner, Scalar, TraitEnvironment, Ty, TyExt, TyKind,
     db::HirDatabase,
     infer::normalize,
     inhabitedness::{is_enum_variant_uninhabited_from, is_ty_uninhabited_from},
@@ -69,13 +70,19 @@
     body: DefWithBodyId,
     pub(crate) db: &'db dyn HirDatabase,
     exhaustive_patterns: bool,
+    env: Arc<TraitEnvironment>,
 }
 
 impl<'db> MatchCheckCtx<'db> {
-    pub(crate) fn new(module: ModuleId, body: DefWithBodyId, db: &'db dyn HirDatabase) -> Self {
-        let def_map = db.crate_def_map(module.krate());
+    pub(crate) fn new(
+        module: ModuleId,
+        body: DefWithBodyId,
+        db: &'db dyn HirDatabase,
+        env: Arc<TraitEnvironment>,
+    ) -> Self {
+        let def_map = module.crate_def_map(db);
         let exhaustive_patterns = def_map.is_unstable_feature_enabled(&sym::exhaustive_patterns);
-        Self { module, body, db, exhaustive_patterns }
+        Self { module, body, db, exhaustive_patterns, env }
     }
 
     pub(crate) fn compute_match_usefulness(
@@ -100,7 +107,7 @@
     }
 
     fn is_uninhabited(&self, ty: &Ty) -> bool {
-        is_ty_uninhabited_from(self.db, ty, self.module)
+        is_ty_uninhabited_from(self.db, ty, self.module, self.env.clone())
     }
 
     /// Returns whether the given ADT is from another crate declared `#[non_exhaustive]`.
@@ -459,8 +466,13 @@
                 } else {
                     let mut variants = IndexVec::with_capacity(enum_data.variants.len());
                     for &(variant, _) in enum_data.variants.iter() {
-                        let is_uninhabited =
-                            is_enum_variant_uninhabited_from(cx.db, variant, subst, cx.module);
+                        let is_uninhabited = is_enum_variant_uninhabited_from(
+                            cx.db,
+                            variant,
+                            subst,
+                            cx.module,
+                            self.env.clone(),
+                        );
                         let visibility = if is_uninhabited {
                             VariantVisibility::Empty
                         } else {
diff --git a/crates/hir-ty/src/diagnostics/unsafe_check.rs b/crates/hir-ty/src/diagnostics/unsafe_check.rs
index 73b99db..20cf3c7 100644
--- a/crates/hir-ty/src/diagnostics/unsafe_check.rs
+++ b/crates/hir-ty/src/diagnostics/unsafe_check.rs
@@ -7,7 +7,7 @@
 use hir_def::{
     AdtId, DefWithBodyId, FieldId, FunctionId, VariantId,
     expr_store::{Body, path::Path},
-    hir::{Expr, ExprId, ExprOrPatId, Pat, PatId, Statement, UnaryOp},
+    hir::{AsmOperand, Expr, ExprId, ExprOrPatId, Pat, PatId, Statement, UnaryOp},
     resolver::{HasResolver, ResolveValueResult, Resolver, ValueNs},
     signatures::StaticFlags,
     type_ref::Rawness,
@@ -131,28 +131,28 @@
     visitor.walk_expr(current);
 }
 
-struct UnsafeVisitor<'a> {
-    db: &'a dyn HirDatabase,
-    infer: &'a InferenceResult,
-    body: &'a Body,
-    resolver: Resolver,
+struct UnsafeVisitor<'db> {
+    db: &'db dyn HirDatabase,
+    infer: &'db InferenceResult,
+    body: &'db Body,
+    resolver: Resolver<'db>,
     def: DefWithBodyId,
     inside_unsafe_block: InsideUnsafeBlock,
     inside_assignment: bool,
     inside_union_destructure: bool,
-    callback: &'a mut dyn FnMut(UnsafeDiagnostic),
+    callback: &'db mut dyn FnMut(UnsafeDiagnostic),
     def_target_features: TargetFeatures,
     // FIXME: This needs to be the edition of the span of each call.
     edition: Edition,
 }
 
-impl<'a> UnsafeVisitor<'a> {
+impl<'db> UnsafeVisitor<'db> {
     fn new(
-        db: &'a dyn HirDatabase,
-        infer: &'a InferenceResult,
-        body: &'a Body,
+        db: &'db dyn HirDatabase,
+        infer: &'db InferenceResult,
+        body: &'db Body,
         def: DefWithBodyId,
-        unsafe_expr_cb: &'a mut dyn FnMut(UnsafeDiagnostic),
+        unsafe_expr_cb: &'db mut dyn FnMut(UnsafeDiagnostic),
     ) -> Self {
         let resolver = def.resolver(db);
         let def_target_features = match def {
@@ -199,6 +199,17 @@
         }
     }
 
+    fn with_inside_unsafe_block<R>(
+        &mut self,
+        inside_unsafe_block: InsideUnsafeBlock,
+        f: impl FnOnce(&mut Self) -> R,
+    ) -> R {
+        let old = mem::replace(&mut self.inside_unsafe_block, inside_unsafe_block);
+        let result = f(self);
+        self.inside_unsafe_block = old;
+        result
+    }
+
     fn walk_pats_top(&mut self, pats: impl Iterator<Item = PatId>, parent_expr: ExprId) {
         let guard = self.resolver.update_to_inner_scope(self.db, self.def, parent_expr);
         pats.for_each(|pat| self.walk_pat(pat));
@@ -303,7 +314,29 @@
                 self.walk_pats_top(std::iter::once(target), current);
                 self.inside_assignment = old_inside_assignment;
             }
-            Expr::InlineAsm(_) => self.on_unsafe_op(current.into(), UnsafetyReason::InlineAsm),
+            Expr::InlineAsm(asm) => {
+                self.on_unsafe_op(current.into(), UnsafetyReason::InlineAsm);
+                asm.operands.iter().for_each(|(_, op)| match op {
+                    AsmOperand::In { expr, .. }
+                    | AsmOperand::Out { expr: Some(expr), .. }
+                    | AsmOperand::InOut { expr, .. }
+                    | AsmOperand::Const(expr) => self.walk_expr(*expr),
+                    AsmOperand::SplitInOut { in_expr, out_expr, .. } => {
+                        self.walk_expr(*in_expr);
+                        if let Some(out_expr) = out_expr {
+                            self.walk_expr(*out_expr);
+                        }
+                    }
+                    AsmOperand::Out { expr: None, .. } | AsmOperand::Sym(_) => (),
+                    AsmOperand::Label(expr) => {
+                        // Inline asm labels are considered safe even when inside unsafe blocks.
+                        self.with_inside_unsafe_block(InsideUnsafeBlock::No, |this| {
+                            this.walk_expr(*expr)
+                        });
+                    }
+                });
+                return;
+            }
             // rustc allows union assignment to propagate through field accesses and casts.
             Expr::Cast { .. } => self.inside_assignment = inside_assignment,
             Expr::Field { .. } => {
@@ -317,17 +350,16 @@
                 }
             }
             Expr::Unsafe { statements, .. } => {
-                let old_inside_unsafe_block =
-                    mem::replace(&mut self.inside_unsafe_block, InsideUnsafeBlock::Yes);
-                self.walk_pats_top(
-                    statements.iter().filter_map(|statement| match statement {
-                        &Statement::Let { pat, .. } => Some(pat),
-                        _ => None,
-                    }),
-                    current,
-                );
-                self.body.walk_child_exprs_without_pats(current, |child| self.walk_expr(child));
-                self.inside_unsafe_block = old_inside_unsafe_block;
+                self.with_inside_unsafe_block(InsideUnsafeBlock::Yes, |this| {
+                    this.walk_pats_top(
+                        statements.iter().filter_map(|statement| match statement {
+                            &Statement::Let { pat, .. } => Some(pat),
+                            _ => None,
+                        }),
+                        current,
+                    );
+                    this.body.walk_child_exprs_without_pats(current, |child| this.walk_expr(child));
+                });
                 return;
             }
             Expr::Block { statements, .. } | Expr::Async { statements, .. } => {
diff --git a/crates/hir-ty/src/display.rs b/crates/hir-ty/src/display.rs
index f0989d9..f210dd8 100644
--- a/crates/hir-ty/src/display.rs
+++ b/crates/hir-ty/src/display.rs
@@ -1463,6 +1463,8 @@
                     }
                     if f.closure_style == ClosureStyle::RANotation || !sig.ret().is_unit() {
                         write!(f, " -> ")?;
+                        // FIXME: We display `AsyncFn` as `-> impl Future`, but this is hard to fix because
+                        // we don't have a trait environment here, required to normalize `<Ret as Future>::Output`.
                         sig.ret().hir_fmt(f)?;
                     }
                 } else {
diff --git a/crates/hir-ty/src/dyn_compatibility.rs b/crates/hir-ty/src/dyn_compatibility.rs
index 106b996..ed8d8dc 100644
--- a/crates/hir-ty/src/dyn_compatibility.rs
+++ b/crates/hir-ty/src/dyn_compatibility.rs
@@ -9,8 +9,8 @@
 };
 use chalk_solve::rust_ir::InlineBound;
 use hir_def::{
-    AssocItemId, ConstId, FunctionId, GenericDefId, HasModule, TraitId, TypeAliasId,
-    lang_item::LangItem, signatures::TraitFlags,
+    AssocItemId, ConstId, CrateRootModuleId, FunctionId, GenericDefId, HasModule, TraitId,
+    TypeAliasId, lang_item::LangItem, signatures::TraitFlags,
 };
 use rustc_hash::FxHashSet;
 use smallvec::SmallVec;
@@ -343,7 +343,7 @@
             })
         }
         AssocItemId::TypeAliasId(it) => {
-            let def_map = db.crate_def_map(trait_.krate(db));
+            let def_map = CrateRootModuleId::from(trait_.krate(db)).def_map(db);
             if def_map.is_unstable_feature_enabled(&intern::sym::generic_associated_type_extended) {
                 ControlFlow::Continue(())
             } else {
diff --git a/crates/hir-ty/src/infer.rs b/crates/hir-ty/src/infer.rs
index f0ec31d..e698fb2 100644
--- a/crates/hir-ty/src/infer.rs
+++ b/crates/hir-ty/src/infer.rs
@@ -594,16 +594,16 @@
 
 /// The inference context contains all information needed during type inference.
 #[derive(Clone, Debug)]
-pub(crate) struct InferenceContext<'a> {
-    pub(crate) db: &'a dyn HirDatabase,
+pub(crate) struct InferenceContext<'db> {
+    pub(crate) db: &'db dyn HirDatabase,
     pub(crate) owner: DefWithBodyId,
-    pub(crate) body: &'a Body,
+    pub(crate) body: &'db Body,
     /// Generally you should not resolve things via this resolver. Instead create a TyLoweringContext
     /// and resolve the path via its methods. This will ensure proper error reporting.
-    pub(crate) resolver: Resolver,
+    pub(crate) resolver: Resolver<'db>,
     generic_def: GenericDefId,
     generics: OnceCell<Generics>,
-    table: unify::InferenceTable<'a>,
+    table: unify::InferenceTable<'db>,
     /// The traits in scope, disregarding block modules. This is used for caching purposes.
     traits_in_scope: FxHashSet<TraitId>,
     pub(crate) result: InferenceResult,
@@ -695,12 +695,12 @@
     TypeAlias,
 }
 
-impl<'a> InferenceContext<'a> {
+impl<'db> InferenceContext<'db> {
     fn new(
-        db: &'a dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         owner: DefWithBodyId,
-        body: &'a Body,
-        resolver: Resolver,
+        body: &'db Body,
+        resolver: Resolver<'db>,
     ) -> Self {
         let trait_env = db.trait_environment_for_body(owner);
         InferenceContext {
diff --git a/crates/hir-ty/src/infer/closure.rs b/crates/hir-ty/src/infer/closure.rs
index 800897c..bd57ca8 100644
--- a/crates/hir-ty/src/infer/closure.rs
+++ b/crates/hir-ty/src/infer/closure.rs
@@ -38,7 +38,7 @@
     infer::{BreakableKind, CoerceMany, Diverges, coerce::CoerceNever},
     make_binders,
     mir::{BorrowKind, MirSpan, MutBorrowKind, ProjectionElem},
-    to_chalk_trait_id,
+    to_assoc_type_id, to_chalk_trait_id,
     traits::FnTrait,
     utils::{self, elaborate_clause_supertraits},
 };
@@ -245,7 +245,7 @@
     }
 
     fn deduce_closure_kind_from_predicate_clauses(
-        &self,
+        &mut self,
         expected_ty: &Ty,
         clauses: impl DoubleEndedIterator<Item = WhereClause>,
         closure_kind: ClosureKind,
@@ -378,7 +378,7 @@
     }
 
     fn deduce_sig_from_projection(
-        &self,
+        &mut self,
         closure_kind: ClosureKind,
         projection_ty: &ProjectionTy,
         projected_ty: &Ty,
@@ -392,13 +392,16 @@
 
         // For now, we only do signature deduction based off of the `Fn` and `AsyncFn` traits,
         // for closures and async closures, respectively.
-        match closure_kind {
-            ClosureKind::Closure | ClosureKind::Async
-                if self.fn_trait_kind_from_trait_id(trait_).is_some() =>
-            {
-                self.extract_sig_from_projection(projection_ty, projected_ty)
-            }
-            _ => None,
+        let fn_trait_kind = self.fn_trait_kind_from_trait_id(trait_)?;
+        if !matches!(closure_kind, ClosureKind::Closure | ClosureKind::Async) {
+            return None;
+        }
+        if fn_trait_kind.is_async() {
+            // If the expected trait is `AsyncFn(...) -> X`, we don't know what the return type is,
+            // but we do know it must implement `Future<Output = X>`.
+            self.extract_async_fn_sig_from_projection(projection_ty, projected_ty)
+        } else {
+            self.extract_sig_from_projection(projection_ty, projected_ty)
         }
     }
 
@@ -424,6 +427,39 @@
         )))
     }
 
+    fn extract_async_fn_sig_from_projection(
+        &mut self,
+        projection_ty: &ProjectionTy,
+        projected_ty: &Ty,
+    ) -> Option<FnSubst<Interner>> {
+        let arg_param_ty = projection_ty.substitution.as_slice(Interner)[1].assert_ty_ref(Interner);
+
+        let TyKind::Tuple(_, input_tys) = arg_param_ty.kind(Interner) else {
+            return None;
+        };
+
+        let ret_param_future_output = projected_ty;
+        let ret_param_future = self.table.new_type_var();
+        let future_output =
+            LangItem::FutureOutput.resolve_type_alias(self.db, self.resolver.krate())?;
+        let future_projection = crate::AliasTy::Projection(crate::ProjectionTy {
+            associated_ty_id: to_assoc_type_id(future_output),
+            substitution: Substitution::from1(Interner, ret_param_future.clone()),
+        });
+        self.table.register_obligation(
+            crate::AliasEq { alias: future_projection, ty: ret_param_future_output.clone() }
+                .cast(Interner),
+        );
+
+        Some(FnSubst(Substitution::from_iter(
+            Interner,
+            input_tys.iter(Interner).map(|t| t.cast(Interner)).chain(Some(GenericArg::new(
+                Interner,
+                chalk_ir::GenericArgData::Ty(ret_param_future),
+            ))),
+        )))
+    }
+
     fn fn_trait_kind_from_trait_id(&self, trait_id: hir_def::TraitId) -> Option<FnTrait> {
         FnTrait::from_lang_item(self.db.lang_attr(trait_id.into())?)
     }
diff --git a/crates/hir-ty/src/infer/diagnostics.rs b/crates/hir-ty/src/infer/diagnostics.rs
index e3c4f55..003364d 100644
--- a/crates/hir-ty/src/infer/diagnostics.rs
+++ b/crates/hir-ty/src/infer/diagnostics.rs
@@ -61,7 +61,7 @@
     #[inline]
     pub(super) fn new(
         db: &'a dyn HirDatabase,
-        resolver: &'a Resolver,
+        resolver: &'a Resolver<'_>,
         store: &'a ExpressionStore,
         diagnostics: &'a Diagnostics,
         source: InferenceTyDiagnosticSource,
diff --git a/crates/hir-ty/src/infer/expr.rs b/crates/hir-ty/src/infer/expr.rs
index 8084b39..87b7f34 100644
--- a/crates/hir-ty/src/infer/expr.rs
+++ b/crates/hir-ty/src/infer/expr.rs
@@ -959,8 +959,8 @@
             }
             Expr::OffsetOf(_) => TyKind::Scalar(Scalar::Uint(UintTy::Usize)).intern(Interner),
             Expr::InlineAsm(asm) => {
-                let mut check_expr_asm_operand = |expr, is_input: bool| {
-                    let ty = self.infer_expr_no_expect(expr, ExprIsRead::Yes);
+                let check_expr_asm_operand = |this: &mut Self, expr, is_input: bool| {
+                    let ty = this.infer_expr_no_expect(expr, ExprIsRead::Yes);
 
                     // If this is an input value, we require its type to be fully resolved
                     // at this point. This allows us to provide helpful coercions which help
@@ -970,18 +970,18 @@
                     // allows them to be inferred based on how they are used later in the
                     // function.
                     if is_input {
-                        let ty = self.resolve_ty_shallow(&ty);
+                        let ty = this.resolve_ty_shallow(&ty);
                         match ty.kind(Interner) {
                             TyKind::FnDef(def, parameters) => {
                                 let fnptr_ty = TyKind::Function(
-                                    CallableSig::from_def(self.db, *def, parameters).to_fn_ptr(),
+                                    CallableSig::from_def(this.db, *def, parameters).to_fn_ptr(),
                                 )
                                 .intern(Interner);
-                                _ = self.coerce(Some(expr), &ty, &fnptr_ty, CoerceNever::Yes);
+                                _ = this.coerce(Some(expr), &ty, &fnptr_ty, CoerceNever::Yes);
                             }
                             TyKind::Ref(mutbl, _, base_ty) => {
                                 let ptr_ty = TyKind::Raw(*mutbl, base_ty.clone()).intern(Interner);
-                                _ = self.coerce(Some(expr), &ty, &ptr_ty, CoerceNever::Yes);
+                                _ = this.coerce(Some(expr), &ty, &ptr_ty, CoerceNever::Yes);
                             }
                             _ => {}
                         }
@@ -990,22 +990,28 @@
 
                 let diverge = asm.options.contains(AsmOptions::NORETURN);
                 asm.operands.iter().for_each(|(_, operand)| match *operand {
-                    AsmOperand::In { expr, .. } => check_expr_asm_operand(expr, true),
+                    AsmOperand::In { expr, .. } => check_expr_asm_operand(self, expr, true),
                     AsmOperand::Out { expr: Some(expr), .. } | AsmOperand::InOut { expr, .. } => {
-                        check_expr_asm_operand(expr, false)
+                        check_expr_asm_operand(self, expr, false)
                     }
                     AsmOperand::Out { expr: None, .. } => (),
                     AsmOperand::SplitInOut { in_expr, out_expr, .. } => {
-                        check_expr_asm_operand(in_expr, true);
+                        check_expr_asm_operand(self, in_expr, true);
                         if let Some(out_expr) = out_expr {
-                            check_expr_asm_operand(out_expr, false);
+                            check_expr_asm_operand(self, out_expr, false);
                         }
                     }
-                    // FIXME
-                    AsmOperand::Label(_) => (),
-                    // FIXME
-                    AsmOperand::Const(_) => (),
-                    // FIXME
+                    AsmOperand::Label(expr) => {
+                        self.infer_expr(
+                            expr,
+                            &Expectation::HasType(self.result.standard_types.unit.clone()),
+                            ExprIsRead::No,
+                        );
+                    }
+                    AsmOperand::Const(expr) => {
+                        self.infer_expr(expr, &Expectation::None, ExprIsRead::No);
+                    }
+                    // FIXME: `sym` should report for things that are not functions or statics.
                     AsmOperand::Sym(_) => (),
                 });
                 if diverge {
diff --git a/crates/hir-ty/src/inhabitedness.rs b/crates/hir-ty/src/inhabitedness.rs
index e0c3279..e81a5e3 100644
--- a/crates/hir-ty/src/inhabitedness.rs
+++ b/crates/hir-ty/src/inhabitedness.rs
@@ -7,17 +7,24 @@
 };
 use hir_def::{AdtId, EnumVariantId, ModuleId, VariantId, visibility::Visibility};
 use rustc_hash::FxHashSet;
+use triomphe::Arc;
 
 use crate::{
-    Binders, Interner, Substitution, Ty, TyKind, consteval::try_const_usize, db::HirDatabase,
+    AliasTy, Binders, Interner, Substitution, TraitEnvironment, Ty, TyKind,
+    consteval::try_const_usize, db::HirDatabase,
 };
 
 // FIXME: Turn this into a query, it can be quite slow
 /// Checks whether a type is visibly uninhabited from a particular module.
-pub(crate) fn is_ty_uninhabited_from(db: &dyn HirDatabase, ty: &Ty, target_mod: ModuleId) -> bool {
+pub(crate) fn is_ty_uninhabited_from(
+    db: &dyn HirDatabase,
+    ty: &Ty,
+    target_mod: ModuleId,
+    env: Arc<TraitEnvironment>,
+) -> bool {
     let _p = tracing::info_span!("is_ty_uninhabited_from", ?ty).entered();
     let mut uninhabited_from =
-        UninhabitedFrom { target_mod, db, max_depth: 500, recursive_ty: FxHashSet::default() };
+        UninhabitedFrom { target_mod, db, max_depth: 500, recursive_ty: FxHashSet::default(), env };
     let inhabitedness = ty.visit_with(&mut uninhabited_from, DebruijnIndex::INNERMOST);
     inhabitedness == BREAK_VISIBLY_UNINHABITED
 }
@@ -29,11 +36,12 @@
     variant: EnumVariantId,
     subst: &Substitution,
     target_mod: ModuleId,
+    env: Arc<TraitEnvironment>,
 ) -> bool {
     let _p = tracing::info_span!("is_enum_variant_uninhabited_from").entered();
 
     let mut uninhabited_from =
-        UninhabitedFrom { target_mod, db, max_depth: 500, recursive_ty: FxHashSet::default() };
+        UninhabitedFrom { target_mod, db, max_depth: 500, recursive_ty: FxHashSet::default(), env };
     let inhabitedness = uninhabited_from.visit_variant(variant.into(), subst);
     inhabitedness == BREAK_VISIBLY_UNINHABITED
 }
@@ -44,6 +52,7 @@
     // guard for preventing stack overflow in non trivial non terminating types
     max_depth: usize,
     db: &'a dyn HirDatabase,
+    env: Arc<TraitEnvironment>,
 }
 
 const CONTINUE_OPAQUELY_INHABITED: ControlFlow<VisiblyUninhabited> = Continue(());
@@ -78,6 +87,12 @@
                 Some(0) | None => CONTINUE_OPAQUELY_INHABITED,
                 Some(1..) => item_ty.super_visit_with(self, outer_binder),
             },
+            TyKind::Alias(AliasTy::Projection(projection)) => {
+                // FIXME: I think this currently isn't used for monomorphized bodies, so there is no need to handle
+                // `TyKind::AssociatedType`, but perhaps in the future it will.
+                let normalized = self.db.normalize_projection(projection.clone(), self.env.clone());
+                self.visit_ty(&normalized, outer_binder)
+            }
             _ => CONTINUE_OPAQUELY_INHABITED,
         };
         self.recursive_ty.remove(ty);
diff --git a/crates/hir-ty/src/lower.rs b/crates/hir-ty/src/lower.rs
index 9def39d..ea8e7cc 100644
--- a/crates/hir-ty/src/lower.rs
+++ b/crates/hir-ty/src/lower.rs
@@ -42,7 +42,6 @@
 use hir_expand::name::Name;
 use la_arena::{Arena, ArenaMap};
 use rustc_hash::FxHashSet;
-use rustc_pattern_analysis::Captures;
 use stdx::{impl_from, never};
 use triomphe::{Arc, ThinArc};
 
@@ -151,10 +150,10 @@
 }
 
 #[derive(Debug)]
-pub struct TyLoweringContext<'a> {
-    pub db: &'a dyn HirDatabase,
-    resolver: &'a Resolver,
-    store: &'a ExpressionStore,
+pub struct TyLoweringContext<'db> {
+    pub db: &'db dyn HirDatabase,
+    resolver: &'db Resolver<'db>,
+    store: &'db ExpressionStore,
     def: GenericDefId,
     generics: OnceCell<Generics>,
     in_binders: DebruijnIndex,
@@ -170,11 +169,11 @@
     lifetime_elision: LifetimeElisionKind,
 }
 
-impl<'a> TyLoweringContext<'a> {
+impl<'db> TyLoweringContext<'db> {
     pub fn new(
-        db: &'a dyn HirDatabase,
-        resolver: &'a Resolver,
-        store: &'a ExpressionStore,
+        db: &'db dyn HirDatabase,
+        resolver: &'db Resolver<'db>,
+        store: &'db ExpressionStore,
         def: GenericDefId,
         lifetime_elision: LifetimeElisionKind,
     ) -> Self {
@@ -1176,13 +1175,13 @@
 
 /// Generate implicit `: Sized` predicates for all generics that has no `?Sized` bound.
 /// Exception is Self of a trait def.
-fn implicitly_sized_clauses<'a, 'subst: 'a>(
-    db: &dyn HirDatabase,
+fn implicitly_sized_clauses<'db, 'a, 'subst: 'a>(
+    db: &'db dyn HirDatabase,
     def: GenericDefId,
     explicitly_unsized_tys: &'a FxHashSet<Ty>,
     substitution: &'subst Substitution,
-    resolver: &Resolver,
-) -> Option<impl Iterator<Item = WhereClause> + Captures<'a> + Captures<'subst>> {
+    resolver: &Resolver<'db>,
+) -> Option<impl Iterator<Item = WhereClause>> {
     let sized_trait = LangItem::Sized.resolve_trait(db, resolver.krate()).map(to_chalk_trait_id)?;
 
     let trait_self_idx = trait_self_param_idx(db, def);
diff --git a/crates/hir-ty/src/method_resolution.rs b/crates/hir-ty/src/method_resolution.rs
index 8e549ca..3b295d4 100644
--- a/crates/hir-ty/src/method_resolution.rs
+++ b/crates/hir-ty/src/method_resolution.rs
@@ -10,7 +10,7 @@
 use hir_def::{
     AssocItemId, BlockId, ConstId, FunctionId, HasModule, ImplId, ItemContainerId, Lookup,
     ModuleId, TraitId,
-    nameres::{DefMap, assoc::ImplItems},
+    nameres::{DefMap, assoc::ImplItems, block_def_map, crate_def_map},
     signatures::{ConstFlags, EnumFlags, FnFlags, StructFlags, TraitFlags, TypeAliasFlags},
 };
 use hir_expand::name::Name;
@@ -152,7 +152,7 @@
         let _p = tracing::info_span!("trait_impls_in_crate_query", ?krate).entered();
         let mut impls = FxHashMap::default();
 
-        Self::collect_def_map(db, &mut impls, &db.crate_def_map(krate));
+        Self::collect_def_map(db, &mut impls, crate_def_map(db, krate));
 
         Arc::new(Self::finish(impls))
     }
@@ -164,7 +164,7 @@
         let _p = tracing::info_span!("trait_impls_in_block_query").entered();
         let mut impls = FxHashMap::default();
 
-        Self::collect_def_map(db, &mut impls, &db.block_def_map(block));
+        Self::collect_def_map(db, &mut impls, block_def_map(db, block));
 
         if impls.is_empty() { None } else { Some(Arc::new(Self::finish(impls))) }
     }
@@ -214,7 +214,7 @@
             for konst in module_data.scope.unnamed_consts() {
                 let body = db.body(konst.into());
                 for (_, block_def_map) in body.blocks(db) {
-                    Self::collect_def_map(db, map, &block_def_map);
+                    Self::collect_def_map(db, map, block_def_map);
                 }
             }
         }
@@ -280,8 +280,8 @@
         let _p = tracing::info_span!("inherent_impls_in_crate_query", ?krate).entered();
         let mut impls = Self { map: FxHashMap::default(), invalid_impls: Vec::default() };
 
-        let crate_def_map = db.crate_def_map(krate);
-        impls.collect_def_map(db, &crate_def_map);
+        let crate_def_map = crate_def_map(db, krate);
+        impls.collect_def_map(db, crate_def_map);
         impls.shrink_to_fit();
 
         Arc::new(impls)
@@ -294,8 +294,8 @@
         let _p = tracing::info_span!("inherent_impls_in_block_query").entered();
         let mut impls = Self { map: FxHashMap::default(), invalid_impls: Vec::default() };
 
-        let block_def_map = db.block_def_map(block);
-        impls.collect_def_map(db, &block_def_map);
+        let block_def_map = block_def_map(db, block);
+        impls.collect_def_map(db, block_def_map);
         impls.shrink_to_fit();
 
         if impls.map.is_empty() && impls.invalid_impls.is_empty() {
@@ -337,7 +337,7 @@
             for konst in module_data.scope.unnamed_consts() {
                 let body = db.body(konst.into());
                 for (_, block_def_map) in body.blocks(db) {
-                    self.collect_def_map(db, &block_def_map);
+                    self.collect_def_map(db, block_def_map);
                 }
             }
         }
@@ -1399,7 +1399,7 @@
             )?;
         }
 
-        block = db.block_def_map(block_id).parent().and_then(|module| module.containing_block());
+        block = block_def_map(db, block_id).parent().and_then(|module| module.containing_block());
     }
 
     for krate in def_crates {
diff --git a/crates/hir-ty/src/mir/eval/shim.rs b/crates/hir-ty/src/mir/eval/shim.rs
index 26ef95d..90c52ee 100644
--- a/crates/hir-ty/src/mir/eval/shim.rs
+++ b/crates/hir-ty/src/mir/eval/shim.rs
@@ -5,6 +5,7 @@
 
 use chalk_ir::TyKind;
 use hir_def::{
+    CrateRootModuleId,
     builtin_type::{BuiltinInt, BuiltinUint},
     resolver::HasResolver,
 };
@@ -153,7 +154,7 @@
     ) -> Result<Option<FunctionId>> {
         // `PanicFmt` is redirected to `ConstPanicFmt`
         if let Some(LangItem::PanicFmt) = self.db.lang_attr(def.into()) {
-            let resolver = self.db.crate_def_map(self.crate_id).crate_root().resolver(self.db);
+            let resolver = CrateRootModuleId::from(self.crate_id).resolver(self.db);
 
             let Some(const_panic_fmt) =
                 LangItem::ConstPanicFmt.resolve_function(self.db, resolver.krate())
@@ -1120,7 +1121,7 @@
                 // We don't call any drop glue yet, so there is nothing here
                 Ok(())
             }
-            "transmute" => {
+            "transmute" | "transmute_unchecked" => {
                 let [arg] = args else {
                     return Err(MirEvalError::InternalError(
                         "transmute arg is not provided".into(),
diff --git a/crates/hir-ty/src/mir/lower.rs b/crates/hir-ty/src/mir/lower.rs
index 7b48b15..e6caf2d 100644
--- a/crates/hir-ty/src/mir/lower.rs
+++ b/crates/hir-ty/src/mir/lower.rs
@@ -25,7 +25,7 @@
 use triomphe::Arc;
 
 use crate::{
-    Adjust, Adjustment, AutoBorrow, CallableDefId, TyBuilder, TyExt,
+    Adjust, Adjustment, AutoBorrow, CallableDefId, TraitEnvironment, TyBuilder, TyExt,
     consteval::ConstEvalError,
     db::{HirDatabase, InternedClosure, InternedClosureId},
     display::{DisplayTarget, HirDisplay, hir_display_with_store},
@@ -68,17 +68,18 @@
     locals: Vec<LocalId>,
 }
 
-struct MirLowerCtx<'a> {
+struct MirLowerCtx<'db> {
     result: MirBody,
     owner: DefWithBodyId,
     current_loop_blocks: Option<LoopBlocks>,
     labeled_loop_blocks: FxHashMap<LabelId, LoopBlocks>,
     discr_temp: Option<Place>,
-    db: &'a dyn HirDatabase,
-    body: &'a Body,
-    infer: &'a InferenceResult,
-    resolver: Resolver,
+    db: &'db dyn HirDatabase,
+    body: &'db Body,
+    infer: &'db InferenceResult,
+    resolver: Resolver<'db>,
     drop_scopes: Vec<DropScope>,
+    env: Arc<TraitEnvironment>,
 }
 
 // FIXME: Make this smaller, its stored in database queries
@@ -288,6 +289,7 @@
             closures: vec![],
         };
         let resolver = owner.resolver(db);
+        let env = db.trait_environment_for_body(owner);
 
         MirLowerCtx {
             result: mir,
@@ -300,6 +302,7 @@
             labeled_loop_blocks: Default::default(),
             discr_temp: None,
             drop_scopes: vec![DropScope::default()],
+            env,
         }
     }
 
@@ -944,10 +947,7 @@
                     let cast_kind = if source_ty.as_reference().is_some() {
                         CastKind::PointerCoercion(PointerCast::ArrayToPointer)
                     } else {
-                        let mut table = InferenceTable::new(
-                            self.db,
-                            self.db.trait_environment_for_body(self.owner),
-                        );
+                        let mut table = InferenceTable::new(self.db, self.env.clone());
                         cast_kind(&mut table, &source_ty, &target_ty)?
                     };
 
@@ -1412,11 +1412,8 @@
     }
 
     fn lower_literal_to_operand(&mut self, ty: Ty, l: &Literal) -> Result<Operand> {
-        let size = || {
-            self.db
-                .layout_of_ty(ty.clone(), self.db.trait_environment_for_body(self.owner))
-                .map(|it| it.size.bytes_usize())
-        };
+        let size =
+            || self.db.layout_of_ty(ty.clone(), self.env.clone()).map(|it| it.size.bytes_usize());
         const USIZE_SIZE: usize = size_of::<usize>();
         let bytes: Box<[_]> = match l {
             hir_def::hir::Literal::String(b) => {
@@ -1723,7 +1720,12 @@
     }
 
     fn is_uninhabited(&self, expr_id: ExprId) -> bool {
-        is_ty_uninhabited_from(self.db, &self.infer[expr_id], self.owner.module(self.db))
+        is_ty_uninhabited_from(
+            self.db,
+            &self.infer[expr_id],
+            self.owner.module(self.db),
+            self.env.clone(),
+        )
     }
 
     /// This function push `StorageLive` statement for the binding, and applies changes to add `StorageDead` and
diff --git a/crates/hir-ty/src/test_db.rs b/crates/hir-ty/src/test_db.rs
index bcd8aa6..d049c67 100644
--- a/crates/hir-ty/src/test_db.rs
+++ b/crates/hir-ty/src/test_db.rs
@@ -7,7 +7,7 @@
     SourceRoot, SourceRootId, SourceRootInput,
 };
 
-use hir_def::{ModuleId, db::DefDatabase};
+use hir_def::{ModuleId, db::DefDatabase, nameres::crate_def_map};
 use hir_expand::EditionedFileId;
 use rustc_hash::FxHashMap;
 use salsa::{AsDynDatabase, Durability};
@@ -27,9 +27,18 @@
 
 impl Default for TestDB {
     fn default() -> Self {
+        let events = <Arc<Mutex<Option<Vec<salsa::Event>>>>>::default();
         let mut this = Self {
-            storage: Default::default(),
-            events: Default::default(),
+            storage: salsa::Storage::new(Some(Box::new({
+                let events = events.clone();
+                move |event| {
+                    let mut events = events.lock().unwrap();
+                    if let Some(events) = &mut *events {
+                        events.push(event);
+                    }
+                }
+            }))),
+            events,
             files: Default::default(),
             crates_map: Default::default(),
         };
@@ -103,14 +112,7 @@
 }
 
 #[salsa_macros::db]
-impl salsa::Database for TestDB {
-    fn salsa_event(&self, event: &dyn std::ops::Fn() -> salsa::Event) {
-        let mut events = self.events.lock().unwrap();
-        if let Some(events) = &mut *events {
-            events.push(event());
-        }
-    }
-}
+impl salsa::Database for TestDB {}
 
 impl panic::RefUnwindSafe for TestDB {}
 
@@ -118,7 +120,7 @@
     pub(crate) fn module_for_file_opt(&self, file_id: impl Into<FileId>) -> Option<ModuleId> {
         let file_id = file_id.into();
         for &krate in self.relevant_crates(file_id).iter() {
-            let crate_def_map = self.crate_def_map(krate);
+            let crate_def_map = crate_def_map(self, krate);
             for (local_id, data) in crate_def_map.modules() {
                 if data.origin.file_id().map(|file_id| file_id.file_id(self)) == Some(file_id) {
                     return Some(crate_def_map.module_id(local_id));
@@ -137,7 +139,7 @@
     ) -> FxHashMap<EditionedFileId, Vec<(TextRange, String)>> {
         let mut files = Vec::new();
         for &krate in self.all_crates().iter() {
-            let crate_def_map = self.crate_def_map(krate);
+            let crate_def_map = crate_def_map(self, krate);
             for (module_id, _) in crate_def_map.modules() {
                 let file_id = crate_def_map[module_id].origin.file_id();
                 files.extend(file_id)
diff --git a/crates/hir-ty/src/tests.rs b/crates/hir-ty/src/tests.rs
index cc37f65..2b75bd6 100644
--- a/crates/hir-ty/src/tests.rs
+++ b/crates/hir-ty/src/tests.rs
@@ -132,7 +132,7 @@
             None => continue,
         };
         let def_map = module.def_map(&db);
-        visit_module(&db, &def_map, module.local_id, &mut |it| {
+        visit_module(&db, def_map, module.local_id, &mut |it| {
             let def = match it {
                 ModuleDefId::FunctionId(it) => it.into(),
                 ModuleDefId::EnumVariantId(it) => it.into(),
@@ -391,7 +391,7 @@
     let def_map = module.def_map(&db);
 
     let mut defs: Vec<(DefWithBodyId, Crate)> = Vec::new();
-    visit_module(&db, &def_map, module.local_id, &mut |it| {
+    visit_module(&db, def_map, module.local_id, &mut |it| {
         let def = match it {
             ModuleDefId::FunctionId(it) => it.into(),
             ModuleDefId::EnumVariantId(it) => it.into(),
@@ -504,7 +504,7 @@
     fn visit_body(db: &TestDB, body: &Body, cb: &mut dyn FnMut(ModuleDefId)) {
         for (_, def_map) in body.blocks(db) {
             for (mod_id, _) in def_map.modules() {
-                visit_module(db, &def_map, mod_id, cb);
+                visit_module(db, def_map, mod_id, cb);
             }
         }
     }
@@ -570,7 +570,7 @@
 
     let module = db.module_for_file(pos.file_id.file_id(&db));
     let crate_def_map = module.def_map(&db);
-    visit_module(&db, &crate_def_map, module.local_id, &mut |def| {
+    visit_module(&db, crate_def_map, module.local_id, &mut |def| {
         db.infer(match def {
             ModuleDefId::FunctionId(it) => it.into(),
             ModuleDefId::EnumVariantId(it) => it.into(),
@@ -609,7 +609,7 @@
 
     let module = db.module_for_file(pos.file_id.file_id(&db));
     let crate_def_map = module.def_map(&db);
-    visit_module(&db, &crate_def_map, module.local_id, &mut |def| {
+    visit_module(&db, crate_def_map, module.local_id, &mut |def| {
         db.infer(match def {
             ModuleDefId::FunctionId(it) => it.into(),
             ModuleDefId::EnumVariantId(it) => it.into(),
diff --git a/crates/hir-ty/src/tests/closure_captures.rs b/crates/hir-ty/src/tests/closure_captures.rs
index 73f1ae5..88d21be 100644
--- a/crates/hir-ty/src/tests/closure_captures.rs
+++ b/crates/hir-ty/src/tests/closure_captures.rs
@@ -20,7 +20,7 @@
     let def_map = module.def_map(&db);
 
     let mut defs = Vec::new();
-    visit_module(&db, &def_map, module.local_id, &mut |it| defs.push(it));
+    visit_module(&db, def_map, module.local_id, &mut |it| defs.push(it));
 
     let mut captures_info = Vec::new();
     for def in defs {
diff --git a/crates/hir-ty/src/tests/incremental.rs b/crates/hir-ty/src/tests/incremental.rs
index 0542be0..48474d2 100644
--- a/crates/hir-ty/src/tests/incremental.rs
+++ b/crates/hir-ty/src/tests/incremental.rs
@@ -19,7 +19,7 @@
         let events = db.log_executed(|| {
             let module = db.module_for_file(pos.file_id.file_id(&db));
             let crate_def_map = module.def_map(&db);
-            visit_module(&db, &crate_def_map, module.local_id, &mut |def| {
+            visit_module(&db, crate_def_map, module.local_id, &mut |def| {
                 if let ModuleDefId::FunctionId(it) = def {
                     db.infer(it.into());
                 }
@@ -41,7 +41,7 @@
         let events = db.log_executed(|| {
             let module = db.module_for_file(pos.file_id.file_id(&db));
             let crate_def_map = module.def_map(&db);
-            visit_module(&db, &crate_def_map, module.local_id, &mut |def| {
+            visit_module(&db, crate_def_map, module.local_id, &mut |def| {
                 if let ModuleDefId::FunctionId(it) = def {
                     db.infer(it.into());
                 }
@@ -70,7 +70,7 @@
         let events = db.log_executed(|| {
             let module = db.module_for_file(pos.file_id.file_id(&db));
             let crate_def_map = module.def_map(&db);
-            visit_module(&db, &crate_def_map, module.local_id, &mut |def| {
+            visit_module(&db, crate_def_map, module.local_id, &mut |def| {
                 if let ModuleDefId::FunctionId(it) = def {
                     db.infer(it.into());
                 }
@@ -97,7 +97,7 @@
         let events = db.log_executed(|| {
             let module = db.module_for_file(pos.file_id.file_id(&db));
             let crate_def_map = module.def_map(&db);
-            visit_module(&db, &crate_def_map, module.local_id, &mut |def| {
+            visit_module(&db, crate_def_map, module.local_id, &mut |def| {
                 if let ModuleDefId::FunctionId(it) = def {
                     db.infer(it.into());
                 }
diff --git a/crates/hir-ty/src/tests/macros.rs b/crates/hir-ty/src/tests/macros.rs
index 446f0b2..ea7a113 100644
--- a/crates/hir-ty/src/tests/macros.rs
+++ b/crates/hir-ty/src/tests/macros.rs
@@ -1505,6 +1505,10 @@
             !119..120 'o': i32
             293..294 'o': i32
             308..317 'thread_id': usize
+            !314..320 'OffPtr': usize
+            !333..338 'OffFn': usize
+            !354..355 '0': i32
+            !371..382 'MEM_RELEASE': usize
         "#]],
     )
 }
diff --git a/crates/hir-ty/src/tests/simple.rs b/crates/hir-ty/src/tests/simple.rs
index eeebe38..cf51671 100644
--- a/crates/hir-ty/src/tests/simple.rs
+++ b/crates/hir-ty/src/tests/simple.rs
@@ -3902,3 +3902,66 @@
         "#]],
     );
 }
+
+#[test]
+fn regression_19734() {
+    check_infer(
+        r#"
+trait Foo {
+    type Gat<'o>;
+}
+
+trait Bar {
+    fn baz() -> <Self::Xyz as Foo::Gat<'_>>;
+}
+
+fn foo<T: Bar>() {
+    T::baz();
+}
+    "#,
+        expect![[r#"
+            110..127 '{     ...z(); }': ()
+            116..122 'T::baz': fn baz<T>() -> <{unknown} as Foo>::Gat<'?>
+            116..124 'T::baz()': Foo::Gat<'?, {unknown}>
+        "#]],
+    );
+}
+
+#[test]
+fn asm_const_label() {
+    check_infer(
+        r#"
+//- minicore: asm
+const fn bar() -> i32 { 123 }
+fn baz(s: &str) {}
+
+fn foo() {
+    unsafe {
+        core::arch::asm!(
+            "mov eax, {}",
+            "jmp {}",
+            const bar(),
+            label {
+                baz("hello");
+            },
+        );
+    }
+}
+    "#,
+        expect![[r#"
+            22..29 '{ 123 }': i32
+            24..27 '123': i32
+            37..38 's': &'? str
+            46..48 '{}': ()
+            !0..68 'builti...");},)': ()
+            !40..43 'bar': fn bar() -> i32
+            !40..45 'bar()': i32
+            !51..66 '{baz("hello");}': ()
+            !52..55 'baz': fn baz(&'? str)
+            !52..64 'baz("hello")': ()
+            !56..63 '"hello"': &'static str
+            59..257 '{     ...   } }': ()
+            65..255 'unsafe...     }': ()
+        "#]],
+    );
+}
diff --git a/crates/hir-ty/src/tests/traits.rs b/crates/hir-ty/src/tests/traits.rs
index 1413760..e5d1fbe 100644
--- a/crates/hir-ty/src/tests/traits.rs
+++ b/crates/hir-ty/src/tests/traits.rs
@@ -4884,3 +4884,49 @@
         "#]],
     );
 }
+
+#[test]
+fn import_trait_items() {
+    check_infer(
+        r#"
+//- minicore: default
+use core::default::Default::default;
+fn main() {
+    let a: i32 = default();
+}
+    "#,
+        expect![[r#"
+            47..78 '{     ...t(); }': ()
+            57..58 'a': i32
+            66..73 'default': {unknown}
+            66..75 'default()': i32
+        "#]],
+    );
+}
+
+#[test]
+fn async_fn_return_type() {
+    check_infer(
+        r#"
+//- minicore: async_fn
+fn foo<F: AsyncFn() -> R, R>(_: F) -> R {
+    loop {}
+}
+
+fn main() {
+    foo(async move || ());
+}
+    "#,
+        expect![[r#"
+            29..30 '_': F
+            40..55 '{     loop {} }': R
+            46..53 'loop {}': !
+            51..53 '{}': ()
+            67..97 '{     ...()); }': ()
+            73..76 'foo': fn foo<impl AsyncFn() -> impl Future<Output = ()>, ()>(impl AsyncFn() -> impl Future<Output = ()>)
+            73..94 'foo(as...|| ())': ()
+            77..93 'async ... || ()': impl AsyncFn() -> impl Future<Output = ()>
+            91..93 '()': ()
+        "#]],
+    );
+}
diff --git a/crates/hir-ty/src/traits.rs b/crates/hir-ty/src/traits.rs
index f9f8776..7414b4f 100644
--- a/crates/hir-ty/src/traits.rs
+++ b/crates/hir-ty/src/traits.rs
@@ -291,4 +291,9 @@
     pub fn get_id(self, db: &dyn HirDatabase, krate: Crate) -> Option<TraitId> {
         self.lang_item().resolve_trait(db, krate)
     }
+
+    #[inline]
+    pub(crate) fn is_async(self) -> bool {
+        matches!(self, FnTrait::AsyncFn | FnTrait::AsyncFnMut | FnTrait::AsyncFnOnce)
+    }
 }
diff --git a/crates/hir-ty/src/variance.rs b/crates/hir-ty/src/variance.rs
index 6e1cd9a..d6b43ae 100644
--- a/crates/hir-ty/src/variance.rs
+++ b/crates/hir-ty/src/variance.rs
@@ -984,7 +984,7 @@
         let mut defs: Vec<GenericDefId> = Vec::new();
         let module = db.module_for_file_opt(file_id.file_id(&db)).unwrap();
         let def_map = module.def_map(&db);
-        crate::tests::visit_module(&db, &def_map, module.local_id, &mut |it| {
+        crate::tests::visit_module(&db, def_map, module.local_id, &mut |it| {
             defs.push(match it {
                 ModuleDefId::FunctionId(it) => it.into(),
                 ModuleDefId::AdtId(it) => it.into(),
diff --git a/crates/hir/src/attrs.rs b/crates/hir/src/attrs.rs
index b1c478d..b1cf30b 100644
--- a/crates/hir/src/attrs.rs
+++ b/crates/hir/src/attrs.rs
@@ -105,11 +105,12 @@
 /// Resolves the item `link` points to in the scope of `def`.
 pub fn resolve_doc_path_on(
     db: &dyn HirDatabase,
-    def: impl HasAttrs,
+    def: impl HasAttrs + Copy,
     link: &str,
     ns: Option<Namespace>,
+    is_inner_doc: bool,
 ) -> Option<DocLinkDef> {
-    resolve_doc_path_on_(db, link, def.attr_id(), ns)
+    resolve_doc_path_on_(db, link, def.attr_id(), ns, is_inner_doc)
 }
 
 fn resolve_doc_path_on_(
@@ -117,9 +118,18 @@
     link: &str,
     attr_id: AttrDefId,
     ns: Option<Namespace>,
+    is_inner_doc: bool,
 ) -> Option<DocLinkDef> {
     let resolver = match attr_id {
-        AttrDefId::ModuleId(it) => it.resolver(db),
+        AttrDefId::ModuleId(it) => {
+            if is_inner_doc {
+                it.resolver(db)
+            } else if let Some(parent) = Module::from(it).parent(db) {
+                parent.id.resolver(db)
+            } else {
+                it.resolver(db)
+            }
+        }
         AttrDefId::FieldId(it) => it.parent.resolver(db),
         AttrDefId::AdtId(it) => it.resolver(db),
         AttrDefId::FunctionId(it) => it.resolver(db),
@@ -160,7 +170,7 @@
 
 fn resolve_assoc_or_field(
     db: &dyn HirDatabase,
-    resolver: Resolver,
+    resolver: Resolver<'_>,
     path: ModPath,
     name: Name,
     ns: Option<Namespace>,
@@ -248,7 +258,7 @@
 
 fn resolve_impl_trait_item(
     db: &dyn HirDatabase,
-    resolver: Resolver,
+    resolver: Resolver<'_>,
     ty: &Type,
     name: &Name,
     ns: Option<Namespace>,
diff --git a/crates/hir/src/lib.rs b/crates/hir/src/lib.rs
index 3f1d5bb..e8218cf 100644
--- a/crates/hir/src/lib.rs
+++ b/crates/hir/src/lib.rs
@@ -97,7 +97,8 @@
     diagnostics::*,
     has_source::HasSource,
     semantics::{
-        PathResolution, Semantics, SemanticsImpl, SemanticsScope, TypeInfo, VisibleTraits,
+        PathResolution, PathResolutionPerNs, Semantics, SemanticsImpl, SemanticsScope, TypeInfo,
+        VisibleTraits,
     },
 };
 
@@ -119,7 +120,7 @@
         find_path::PrefixKind,
         import_map,
         lang_item::LangItem,
-        nameres::{DefMap, ModuleSource},
+        nameres::{DefMap, ModuleSource, crate_def_map},
         per_ns::Namespace,
         type_ref::{Mutability, TypeRef},
         visibility::Visibility,
@@ -227,7 +228,7 @@
     }
 
     pub fn modules(self, db: &dyn HirDatabase) -> Vec<Module> {
-        let def_map = db.crate_def_map(self.id);
+        let def_map = crate_def_map(db, self.id);
         def_map.modules().map(|(id, _)| def_map.module_id(id).into()).collect()
     }
 
@@ -528,7 +529,7 @@
     /// might be missing `krate`. This can happen if a module's file is not included
     /// in the module tree of any target in `Cargo.toml`.
     pub fn crate_root(self, db: &dyn HirDatabase) -> Module {
-        let def_map = db.crate_def_map(self.id.krate());
+        let def_map = crate_def_map(db, self.id.krate());
         Module { id: def_map.crate_root().into() }
     }
 
@@ -2468,7 +2469,7 @@
         {
             return None;
         }
-        let def_map = db.crate_def_map(HasModule::krate(&self.id, db));
+        let def_map = crate_def_map(db, HasModule::krate(&self.id, db));
         def_map.fn_as_proc_macro(self.id).map(|id| Macro { id: id.into() })
     }
 
@@ -4015,8 +4016,7 @@
         if let builtin @ Some(_) = Self::builtin(name) {
             return builtin;
         }
-        let idx = db
-            .crate_def_map(krate.id)
+        let idx = crate_def_map(db, krate.id)
             .registered_attrs()
             .iter()
             .position(|it| it.as_str() == name)? as u32;
@@ -4031,7 +4031,7 @@
     pub fn name(&self, db: &dyn HirDatabase) -> Name {
         match self.krate {
             Some(krate) => Name::new_symbol_root(
-                db.crate_def_map(krate).registered_attrs()[self.idx as usize].clone(),
+                crate_def_map(db, krate).registered_attrs()[self.idx as usize].clone(),
             ),
             None => Name::new_symbol_root(Symbol::intern(
                 hir_expand::inert_attr_macro::INERT_ATTRIBUTES[self.idx as usize].name,
@@ -4059,14 +4059,14 @@
     pub(crate) fn by_name(db: &dyn HirDatabase, krate: Crate, name: &str) -> Option<Self> {
         let krate = krate.id;
         let idx =
-            db.crate_def_map(krate).registered_tools().iter().position(|it| it.as_str() == name)?
+            crate_def_map(db, krate).registered_tools().iter().position(|it| it.as_str() == name)?
                 as u32;
         Some(ToolModule { krate, idx })
     }
 
     pub fn name(&self, db: &dyn HirDatabase) -> Name {
         Name::new_symbol_root(
-            db.crate_def_map(self.krate).registered_tools()[self.idx as usize].clone(),
+            crate_def_map(db, self.krate).registered_tools()[self.idx as usize].clone(),
         )
     }
 
@@ -4488,7 +4488,7 @@
             MacroCallKind::Derive { ast_id, derive_attr_index, derive_index, .. } => {
                 let module_id = self.id.lookup(db).container;
                 (
-                    db.crate_def_map(module_id.krate())[module_id.local_id]
+                    crate_def_map(db, module_id.krate())[module_id.local_id]
                         .scope
                         .derive_macro_invoc(ast_id, derive_attr_index)?,
                     derive_index,
@@ -4530,7 +4530,7 @@
 impl TraitRef {
     pub(crate) fn new_with_resolver(
         db: &dyn HirDatabase,
-        resolver: &Resolver,
+        resolver: &Resolver<'_>,
         trait_ref: hir_ty::TraitRef,
     ) -> TraitRef {
         let env = resolver
@@ -4752,13 +4752,13 @@
 }
 
 impl Type {
-    pub(crate) fn new_with_resolver(db: &dyn HirDatabase, resolver: &Resolver, ty: Ty) -> Type {
+    pub(crate) fn new_with_resolver(db: &dyn HirDatabase, resolver: &Resolver<'_>, ty: Ty) -> Type {
         Type::new_with_resolver_inner(db, resolver, ty)
     }
 
     pub(crate) fn new_with_resolver_inner(
         db: &dyn HirDatabase,
-        resolver: &Resolver,
+        resolver: &Resolver<'_>,
         ty: Ty,
     ) -> Type {
         let environment = resolver
@@ -5972,6 +5972,59 @@
         }
     }
 
+    pub fn tail_padding(&self, field_size: &mut impl FnMut(usize) -> Option<u64>) -> Option<u64> {
+        match self.0.fields {
+            layout::FieldsShape::Primitive => None,
+            layout::FieldsShape::Union(_) => None,
+            layout::FieldsShape::Array { stride, count } => count.checked_sub(1).and_then(|tail| {
+                let tail_field_size = field_size(tail as usize)?;
+                let offset = stride.bytes() * tail;
+                self.0.size.bytes().checked_sub(offset)?.checked_sub(tail_field_size)
+            }),
+            layout::FieldsShape::Arbitrary { ref offsets, ref memory_index } => {
+                let tail = memory_index.last_index()?;
+                let tail_field_size = field_size(tail.0.into_raw().into_u32() as usize)?;
+                let offset = offsets.get(tail)?.bytes();
+                self.0.size.bytes().checked_sub(offset)?.checked_sub(tail_field_size)
+            }
+        }
+    }
+
+    pub fn largest_padding(
+        &self,
+        field_size: &mut impl FnMut(usize) -> Option<u64>,
+    ) -> Option<u64> {
+        match self.0.fields {
+            layout::FieldsShape::Primitive => None,
+            layout::FieldsShape::Union(_) => None,
+            layout::FieldsShape::Array { stride: _, count: 0 } => None,
+            layout::FieldsShape::Array { stride, .. } => {
+                let size = field_size(0)?;
+                stride.bytes().checked_sub(size)
+            }
+            layout::FieldsShape::Arbitrary { ref offsets, ref memory_index } => {
+                let mut reverse_index = vec![None; memory_index.len()];
+                for (src, (mem, offset)) in memory_index.iter().zip(offsets.iter()).enumerate() {
+                    reverse_index[*mem as usize] = Some((src, offset.bytes()));
+                }
+                if reverse_index.iter().any(|it| it.is_none()) {
+                    stdx::never!();
+                    return None;
+                }
+                reverse_index
+                    .into_iter()
+                    .flatten()
+                    .chain(std::iter::once((0, self.0.size.bytes())))
+                    .tuple_windows()
+                    .filter_map(|((i, start), (_, end))| {
+                        let size = field_size(i)?;
+                        end.checked_sub(start)?.checked_sub(size)
+                    })
+                    .max()
+            }
+        }
+    }
+
     pub fn enum_tag_size(&self) -> Option<usize> {
         let tag_size =
             if let layout::Variants::Multiple { tag, tag_encoding, .. } = &self.0.variants {
@@ -6400,7 +6453,7 @@
                 })
                 .filter_map(|&krate| {
                     let segments = segments.clone();
-                    let mut def_map = db.crate_def_map(krate);
+                    let mut def_map = crate_def_map(db, krate);
                     let mut module = &def_map[DefMap::ROOT];
                     let mut segments = segments.with_position().peekable();
                     while let Some((_, segment)) = segments.next_if(|&(position, _)| {
diff --git a/crates/hir/src/semantics.rs b/crates/hir/src/semantics.rs
index 4d092c1..aea2254 100644
--- a/crates/hir/src/semantics.rs
+++ b/crates/hir/src/semantics.rs
@@ -15,7 +15,7 @@
     DefWithBodyId, FunctionId, MacroId, StructId, TraitId, VariantId,
     expr_store::{Body, ExprOrPatSource, path::Path},
     hir::{BindingId, Expr, ExprId, ExprOrPatId, Pat},
-    nameres::ModuleOrigin,
+    nameres::{ModuleOrigin, crate_def_map},
     resolver::{self, HasResolver, Resolver, TypeNs},
     type_ref::Mutability,
 };
@@ -103,6 +103,26 @@
     }
 }
 
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+pub struct PathResolutionPerNs {
+    pub type_ns: Option<PathResolution>,
+    pub value_ns: Option<PathResolution>,
+    pub macro_ns: Option<PathResolution>,
+}
+
+impl PathResolutionPerNs {
+    pub fn new(
+        type_ns: Option<PathResolution>,
+        value_ns: Option<PathResolution>,
+        macro_ns: Option<PathResolution>,
+    ) -> Self {
+        PathResolutionPerNs { type_ns, value_ns, macro_ns }
+    }
+    pub fn any(&self) -> Option<PathResolution> {
+        self.type_ns.or(self.value_ns).or(self.macro_ns)
+    }
+}
+
 #[derive(Debug)]
 pub struct TypeInfo {
     /// The original type of the expression or pattern.
@@ -127,7 +147,7 @@
 }
 
 /// Primary API to get semantic information, like types, from syntax trees.
-pub struct Semantics<'db, DB> {
+pub struct Semantics<'db, DB: ?Sized> {
     pub db: &'db DB,
     imp: SemanticsImpl<'db>,
 }
@@ -341,7 +361,7 @@
         match file_id {
             HirFileId::FileId(file_id) => {
                 let module = self.file_to_module_defs(file_id.file_id(self.db)).next()?;
-                let def_map = self.db.crate_def_map(module.krate().id);
+                let def_map = crate_def_map(self.db, module.krate().id);
                 match def_map[module.id.local_id].origin {
                     ModuleOrigin::CrateRoot { .. } => None,
                     ModuleOrigin::File { declaration, declaration_tree_id, .. } => {
@@ -387,14 +407,10 @@
         res
     }
 
-    pub fn expand_macro_call(&self, macro_call: &ast::MacroCall) -> Option<SyntaxNode> {
-        let sa = self.analyze_no_infer(macro_call.syntax())?;
-
-        let macro_call = InFile::new(sa.file_id, macro_call);
-        let file_id = sa.expand(self.db, macro_call)?;
-
+    pub fn expand_macro_call(&self, macro_call: &ast::MacroCall) -> Option<InFile<SyntaxNode>> {
+        let file_id = self.to_def(macro_call)?;
         let node = self.parse_or_expand(file_id.into());
-        Some(node)
+        Some(InFile::new(file_id.into(), node))
     }
 
     pub fn check_cfg_attr(&self, attr: &ast::TokenTree) -> Option<bool> {
@@ -414,10 +430,7 @@
         &self,
         macro_call: &ast::MacroCall,
     ) -> Option<ExpandResult<SyntaxNode>> {
-        let sa = self.analyze_no_infer(macro_call.syntax())?;
-
-        let macro_call = InFile::new(sa.file_id, macro_call);
-        let file_id = sa.expand(self.db, macro_call)?;
+        let file_id = self.to_def(macro_call)?;
         let macro_call = self.db.lookup_intern_macro_call(file_id);
 
         let skip = matches!(
@@ -448,10 +461,10 @@
     }
 
     /// If `item` has an attribute macro attached to it, expands it.
-    pub fn expand_attr_macro(&self, item: &ast::Item) -> Option<ExpandResult<SyntaxNode>> {
+    pub fn expand_attr_macro(&self, item: &ast::Item) -> Option<ExpandResult<InFile<SyntaxNode>>> {
         let src = self.wrap_node_infile(item.clone());
         let macro_call_id = self.with_ctx(|ctx| ctx.item_to_macro_call(src.as_ref()))?;
-        Some(self.expand(macro_call_id))
+        Some(self.expand(macro_call_id).map(|it| InFile::new(macro_call_id.into(), it)))
     }
 
     pub fn expand_derive_as_pseudo_attr_macro(&self, attr: &ast::Attr) -> Option<SyntaxNode> {
@@ -554,9 +567,7 @@
         speculative_args: &ast::TokenTree,
         token_to_map: SyntaxToken,
     ) -> Option<(SyntaxNode, Vec<(SyntaxToken, u8)>)> {
-        let analyzer = self.analyze_no_infer(actual_macro_call.syntax())?;
-        let macro_call = InFile::new(analyzer.file_id, actual_macro_call);
-        let macro_file = analyzer.expansion(macro_call)?;
+        let macro_file = self.to_def(actual_macro_call)?;
         hir_expand::db::expand_speculative(
             self.db,
             macro_file,
@@ -758,6 +769,31 @@
         })
     }
 
+    /// Descends the token into the include expansion, if its file is an included file.
+    pub fn descend_token_into_include_expansion(
+        &self,
+        tok: InRealFile<SyntaxToken>,
+    ) -> InFile<SyntaxToken> {
+        let Some(include) =
+            self.s2d_cache.borrow_mut().get_or_insert_include_for(self.db, tok.file_id)
+        else {
+            return tok.into();
+        };
+        let span = self.db.real_span_map(tok.file_id).span_for_range(tok.value.text_range());
+        let Some(InMacroFile { file_id, value: mut mapped_tokens }) = self.with_ctx(|ctx| {
+            Some(
+                ctx.cache
+                    .get_or_insert_expansion(ctx.db, include)
+                    .map_range_down(span)?
+                    .map(SmallVec::<[_; 2]>::from_iter),
+            )
+        }) else {
+            return tok.into();
+        };
+        // We should only get one result at most
+        mapped_tokens.pop().map_or_else(|| tok.into(), |(tok, _)| InFile::new(file_id.into(), tok))
+    }
+
     /// Maps a node down by mapping its first and last token down.
     pub fn descend_node_into_attributes<N: AstNode>(&self, node: N) -> SmallVec<[N; 1]> {
         // This might not be the correct way to do this, but it works for now
@@ -826,49 +862,35 @@
         res
     }
 
-    // FIXME: This isn't quite right wrt to inner attributes
-    /// Does a syntactic traversal to check whether this token might be inside a macro call
-    pub fn might_be_inside_macro_call(&self, token: &SyntaxToken) -> bool {
-        token.parent_ancestors().any(|ancestor| {
+    pub fn is_inside_macro_call(&self, token: InFile<&SyntaxToken>) -> bool {
+        // FIXME: Maybe `ancestors_with_macros()` is more suitable here? Currently
+        // this is only used on real (not macro) files so this is not a problem.
+        token.value.parent_ancestors().any(|ancestor| {
             if ast::MacroCall::can_cast(ancestor.kind()) {
                 return true;
             }
-            // Check if it is an item (only items can have macro attributes) that has a non-builtin attribute.
-            let Some(item) = ast::Item::cast(ancestor) else { return false };
-            item.attrs().any(|attr| {
-                let Some(meta) = attr.meta() else { return false };
-                let Some(path) = meta.path() else { return false };
-                if let Some(attr_name) = path.as_single_name_ref() {
-                    let attr_name = attr_name.text();
-                    let attr_name = Symbol::intern(attr_name.as_str());
-                    if attr_name == sym::derive {
-                        return true;
-                    }
-                    // We ignore `#[test]` and friends in the def map, so we cannot expand them.
-                    // FIXME: We match by text. This is both hacky and incorrect (people can, and do, create
-                    // other macros named `test`). We cannot fix that unfortunately because we use this method
-                    // for speculative expansion in completion, which we cannot analyze. Fortunately, most macros
-                    // named `test` are test-like, meaning their expansion is not terribly important for IDE.
-                    if attr_name == sym::test
-                        || attr_name == sym::bench
-                        || attr_name == sym::test_case
-                        || find_builtin_attr_idx(&attr_name).is_some()
-                    {
-                        return false;
-                    }
+
+            let Some(item) = ast::Item::cast(ancestor) else {
+                return false;
+            };
+            // Optimization to skip the semantic check.
+            if item.attrs().all(|attr| {
+                attr.simple_name()
+                    .is_some_and(|attr| find_builtin_attr_idx(&Symbol::intern(&attr)).is_some())
+            }) {
+                return false;
+            }
+            self.with_ctx(|ctx| {
+                if ctx.item_to_macro_call(token.with_value(&item)).is_some() {
+                    return true;
                 }
-                let mut segments = path.segments();
-                let mut next_segment_text = || segments.next().and_then(|it| it.name_ref());
-                // `#[core::prelude::rust_2024::test]` or `#[std::prelude::rust_2024::test]`.
-                if next_segment_text().is_some_and(|it| matches!(&*it.text(), "core" | "std"))
-                    && next_segment_text().is_some_and(|it| it.text() == "prelude")
-                    && next_segment_text().is_some()
-                    && next_segment_text()
-                        .is_some_and(|it| matches!(&*it.text(), "test" | "bench" | "test_case"))
-                {
-                    return false;
-                }
-                true
+                let adt = match item {
+                    ast::Item::Struct(it) => it.into(),
+                    ast::Item::Enum(it) => it.into(),
+                    ast::Item::Union(it) => it.into(),
+                    _ => return false,
+                };
+                ctx.has_derives(token.with_value(&adt))
             })
         })
     }
@@ -1091,16 +1113,7 @@
                             let file_id = match m_cache.get(&mcall) {
                                 Some(&it) => it,
                                 None => {
-                                    let it = token
-                                        .parent()
-                                        .and_then(|parent| {
-                                            self.analyze_impl(
-                                                InFile::new(expansion, &parent),
-                                                None,
-                                                false,
-                                            )
-                                        })?
-                                        .expand(self.db, mcall.as_ref())?;
+                                    let it = ast::MacroCall::to_def(self, mcall.as_ref())?;
                                     m_cache.insert(mcall, it);
                                     it
                                 }
@@ -1540,14 +1553,9 @@
     }
 
     pub fn resolve_macro_call2(&self, macro_call: InFile<&ast::MacroCall>) -> Option<Macro> {
-        self.with_ctx(|ctx| {
-            ctx.macro_call_to_macro_call(macro_call)
-                .and_then(|call| macro_call_to_macro_id(ctx, call))
-                .map(Into::into)
-        })
-        .or_else(|| {
-            self.analyze(macro_call.value.syntax())?.resolve_macro_call(self.db, macro_call)
-        })
+        self.to_def2(macro_call)
+            .and_then(|call| self.with_ctx(|ctx| macro_call_to_macro_id(ctx, call)))
+            .map(Into::into)
     }
 
     pub fn is_proc_macro_call(&self, macro_call: InFile<&ast::MacroCall>) -> bool {
@@ -1556,14 +1564,8 @@
     }
 
     pub fn resolve_macro_call_arm(&self, macro_call: &ast::MacroCall) -> Option<u32> {
-        let sa = self.analyze(macro_call.syntax())?;
-        self.db
-            .parse_macro_expansion(
-                sa.expand(self.db, self.wrap_node_infile(macro_call.clone()).as_ref())?,
-            )
-            .value
-            .1
-            .matched_arm
+        let file_id = self.to_def(macro_call)?;
+        self.db.parse_macro_expansion(file_id).value.1.matched_arm
     }
 
     pub fn get_unsafe_ops(&self, def: DefWithBody) -> FxHashSet<ExprOrPatSource> {
@@ -1606,6 +1608,10 @@
         self.resolve_path_with_subst(path).map(|(it, _)| it)
     }
 
+    pub fn resolve_path_per_ns(&self, path: &ast::Path) -> Option<PathResolutionPerNs> {
+        self.analyze(path.syntax())?.resolve_hir_path_per_ns(self.db, path)
+    }
+
     pub fn resolve_path_with_subst(
         &self,
         path: &ast::Path,
@@ -1664,6 +1670,10 @@
         T::to_def(self, src)
     }
 
+    pub fn to_def2<T: ToDef>(&self, src: InFile<&T>) -> Option<T::Def> {
+        T::to_def(self, src)
+    }
+
     fn file_to_module_defs(&self, file: FileId) -> impl Iterator<Item = Module> {
         self.with_ctx(|ctx| ctx.file_to_def(file).to_owned()).into_iter().map(Module::from)
     }
@@ -1711,13 +1721,13 @@
     }
 
     /// Returns none if the file of the node is not part of a crate.
-    fn analyze(&self, node: &SyntaxNode) -> Option<SourceAnalyzer> {
+    fn analyze(&self, node: &SyntaxNode) -> Option<SourceAnalyzer<'db>> {
         let node = self.find_file(node);
         self.analyze_impl(node, None, true)
     }
 
     /// Returns none if the file of the node is not part of a crate.
-    fn analyze_no_infer(&self, node: &SyntaxNode) -> Option<SourceAnalyzer> {
+    fn analyze_no_infer(&self, node: &SyntaxNode) -> Option<SourceAnalyzer<'db>> {
         let node = self.find_file(node);
         self.analyze_impl(node, None, false)
     }
@@ -1726,7 +1736,7 @@
         &self,
         node: &SyntaxNode,
         offset: TextSize,
-    ) -> Option<SourceAnalyzer> {
+    ) -> Option<SourceAnalyzer<'db>> {
         let node = self.find_file(node);
         self.analyze_impl(node, Some(offset), false)
     }
@@ -1737,7 +1747,7 @@
         offset: Option<TextSize>,
         // replace this, just make the inference result a `LazyCell`
         infer_body: bool,
-    ) -> Option<SourceAnalyzer> {
+    ) -> Option<SourceAnalyzer<'db>> {
         let _p = tracing::info_span!("SemanticsImpl::analyze_impl").entered();
 
         let container = self.with_ctx(|ctx| ctx.find_container(node))?;
@@ -1984,13 +1994,13 @@
 /// Note that if you are wondering "what does this specific existing name mean?",
 /// you'd better use the `resolve_` family of methods.
 #[derive(Debug)]
-pub struct SemanticsScope<'a> {
-    pub db: &'a dyn HirDatabase,
+pub struct SemanticsScope<'db> {
+    pub db: &'db dyn HirDatabase,
     file_id: HirFileId,
-    resolver: Resolver,
+    resolver: Resolver<'db>,
 }
 
-impl SemanticsScope<'_> {
+impl<'db> SemanticsScope<'db> {
     pub fn module(&self) -> Module {
         Module { id: self.resolver.module() }
     }
@@ -2006,7 +2016,7 @@
         })
     }
 
-    pub(crate) fn resolver(&self) -> &Resolver {
+    pub(crate) fn resolver(&self) -> &Resolver<'db> {
         &self.resolver
     }
 
@@ -2133,7 +2143,7 @@
 struct RenameConflictsVisitor<'a> {
     db: &'a dyn HirDatabase,
     owner: DefWithBodyId,
-    resolver: Resolver,
+    resolver: Resolver<'a>,
     body: &'a Body,
     to_be_renamed: BindingId,
     new_name: Symbol,
diff --git a/crates/hir/src/semantics/child_by_source.rs b/crates/hir/src/semantics/child_by_source.rs
index 9393d08..6accf9b 100644
--- a/crates/hir/src/semantics/child_by_source.rs
+++ b/crates/hir/src/semantics/child_by_source.rs
@@ -36,9 +36,14 @@
     fn child_by_source_to(&self, db: &dyn DefDatabase, res: &mut DynMap, file_id: HirFileId) {
         let data = db.trait_items(*self);
 
-        data.attribute_calls().filter(|(ast_id, _)| ast_id.file_id == file_id).for_each(
+        data.macro_calls().filter(|(ast_id, _)| ast_id.file_id == file_id).for_each(
             |(ast_id, call_id)| {
-                res[keys::ATTR_MACRO_CALL].insert(ast_id.to_ptr(db), call_id);
+                let ptr = ast_id.to_ptr(db);
+                if let Some(ptr) = ptr.cast::<ast::MacroCall>() {
+                    res[keys::MACRO_CALL].insert(ptr, call_id);
+                } else {
+                    res[keys::ATTR_MACRO_CALL].insert(ptr, call_id);
+                }
             },
         );
         data.items.iter().for_each(|&(_, item)| {
@@ -50,10 +55,14 @@
 impl ChildBySource for ImplId {
     fn child_by_source_to(&self, db: &dyn DefDatabase, res: &mut DynMap, file_id: HirFileId) {
         let data = db.impl_items(*self);
-        // FIXME: Macro calls
-        data.attribute_calls().filter(|(ast_id, _)| ast_id.file_id == file_id).for_each(
+        data.macro_calls().filter(|(ast_id, _)| ast_id.file_id == file_id).for_each(
             |(ast_id, call_id)| {
-                res[keys::ATTR_MACRO_CALL].insert(ast_id.to_ptr(db), call_id);
+                let ptr = ast_id.to_ptr(db);
+                if let Some(ptr) = ptr.cast::<ast::MacroCall>() {
+                    res[keys::MACRO_CALL].insert(ptr, call_id);
+                } else {
+                    res[keys::ATTR_MACRO_CALL].insert(ptr, call_id);
+                }
             },
         );
         data.items.iter().for_each(|&(_, item)| {
diff --git a/crates/hir/src/semantics/source_to_def.rs b/crates/hir/src/semantics/source_to_def.rs
index 587c51d..7f6c9af 100644
--- a/crates/hir/src/semantics/source_to_def.rs
+++ b/crates/hir/src/semantics/source_to_def.rs
@@ -96,6 +96,7 @@
         keys::{self, Key},
     },
     hir::{BindingId, Expr, LabelId},
+    nameres::{block_def_map, crate_def_map},
 };
 use hir_expand::{
     EditionedFileId, ExpansionInfo, HirFileId, InMacroFile, MacroCallId, attrs::AttrId,
@@ -180,7 +181,7 @@
 
             for &crate_id in self.db.relevant_crates(file).iter() {
                 // Note: `mod` declarations in block modules cannot be supported here
-                let crate_def_map = self.db.crate_def_map(crate_id);
+                let crate_def_map = crate_def_map(self.db, crate_id);
                 let n_mods = mods.len();
                 let modules = |file| {
                     crate_def_map
@@ -226,7 +227,7 @@
         let parent_module = match parent_declaration {
             Some(Either::Right(parent_block)) => self
                 .block_to_def(parent_block.as_ref())
-                .map(|block| self.db.block_def_map(block).root_module_id()),
+                .map(|block| block_def_map(self.db, block).root_module_id()),
             Some(Either::Left(parent_declaration)) => {
                 self.module_to_def(parent_declaration.as_ref())
             }
@@ -398,19 +399,6 @@
         Some((container, label?))
     }
 
-    pub(super) fn item_to_macro_call(&mut self, src: InFile<&ast::Item>) -> Option<MacroCallId> {
-        let map = self.dyn_map(src)?;
-        map[keys::ATTR_MACRO_CALL].get(&AstPtr::new(src.value)).copied()
-    }
-
-    pub(super) fn macro_call_to_macro_call(
-        &mut self,
-        src: InFile<&ast::MacroCall>,
-    ) -> Option<MacroCallId> {
-        let map = self.dyn_map(src)?;
-        map[keys::MACRO_CALL].get(&AstPtr::new(src.value)).copied()
-    }
-
     /// (AttrId, derive attribute call id, derive call ids)
     pub(super) fn attr_to_derive_macro_call(
         &mut self,
@@ -448,6 +436,17 @@
             .or_insert_with(|| container.child_by_source(db, file_id))
     }
 
+    pub(super) fn item_to_macro_call(&mut self, src: InFile<&ast::Item>) -> Option<MacroCallId> {
+        self.to_def(src, keys::ATTR_MACRO_CALL)
+    }
+
+    pub(super) fn macro_call_to_macro_call(
+        &mut self,
+        src: InFile<&ast::MacroCall>,
+    ) -> Option<MacroCallId> {
+        self.to_def(src, keys::MACRO_CALL)
+    }
+
     pub(super) fn type_param_to_def(
         &mut self,
         src: InFile<&ast::TypeParam>,
diff --git a/crates/hir/src/source_analyzer.rs b/crates/hir/src/source_analyzer.rs
index c1a75ce..d22812d 100644
--- a/crates/hir/src/source_analyzer.rs
+++ b/crates/hir/src/source_analyzer.rs
@@ -10,7 +10,9 @@
 use crate::{
     Adt, AssocItem, BindingMode, BuiltinAttr, BuiltinType, Callable, Const, DeriveHelper, Field,
     Function, GenericSubstitution, Local, Macro, ModuleDef, Static, Struct, ToolModule, Trait,
-    TraitAlias, TupleField, Type, TypeAlias, Variant, db::HirDatabase, semantics::PathResolution,
+    TraitAlias, TupleField, Type, TypeAlias, Variant,
+    db::HirDatabase,
+    semantics::{PathResolution, PathResolutionPerNs},
 };
 use either::Either;
 use hir_def::{
@@ -29,7 +31,7 @@
     type_ref::{Mutability, TypeRefId},
 };
 use hir_expand::{
-    HirFileId, InFile, MacroCallId,
+    HirFileId, InFile,
     mod_path::{ModPath, PathKind, path},
     name::{AsName, Name},
 };
@@ -57,9 +59,9 @@
 /// `SourceAnalyzer` is a convenience wrapper which exposes HIR API in terms of
 /// original source files. It should not be used inside the HIR itself.
 #[derive(Debug)]
-pub(crate) struct SourceAnalyzer {
+pub(crate) struct SourceAnalyzer<'db> {
     pub(crate) file_id: HirFileId,
-    pub(crate) resolver: Resolver,
+    pub(crate) resolver: Resolver<'db>,
     pub(crate) body_or_sig: Option<BodyOrSig>,
 }
 
@@ -85,32 +87,32 @@
     },
 }
 
-impl SourceAnalyzer {
+impl<'db> SourceAnalyzer<'db> {
     pub(crate) fn new_for_body(
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         def: DefWithBodyId,
         node: InFile<&SyntaxNode>,
         offset: Option<TextSize>,
-    ) -> SourceAnalyzer {
+    ) -> SourceAnalyzer<'db> {
         Self::new_for_body_(db, def, node, offset, Some(db.infer(def)))
     }
 
     pub(crate) fn new_for_body_no_infer(
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         def: DefWithBodyId,
         node: InFile<&SyntaxNode>,
         offset: Option<TextSize>,
-    ) -> SourceAnalyzer {
+    ) -> SourceAnalyzer<'db> {
         Self::new_for_body_(db, def, node, offset, None)
     }
 
     pub(crate) fn new_for_body_(
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         def: DefWithBodyId,
         node @ InFile { file_id, .. }: InFile<&SyntaxNode>,
         offset: Option<TextSize>,
         infer: Option<Arc<InferenceResult>>,
-    ) -> SourceAnalyzer {
+    ) -> SourceAnalyzer<'db> {
         let (body, source_map) = db.body_with_source_map(def);
         let scopes = db.expr_scopes(def);
         let scope = match offset {
@@ -134,11 +136,11 @@
     }
 
     pub(crate) fn new_generic_def(
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         def: GenericDefId,
         InFile { file_id, .. }: InFile<&SyntaxNode>,
         _offset: Option<TextSize>,
-    ) -> SourceAnalyzer {
+    ) -> SourceAnalyzer<'db> {
         let (_params, store, source_map) = db.generic_params_and_store_and_source_map(def);
         let resolver = def.resolver(db);
         SourceAnalyzer {
@@ -149,11 +151,11 @@
     }
 
     pub(crate) fn new_variant_body(
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         def: VariantId,
         InFile { file_id, .. }: InFile<&SyntaxNode>,
         _offset: Option<TextSize>,
-    ) -> SourceAnalyzer {
+    ) -> SourceAnalyzer<'db> {
         let (fields, source_map) = db.variant_fields_with_source_map(def);
         let resolver = def.resolver(db);
         SourceAnalyzer {
@@ -168,9 +170,9 @@
     }
 
     pub(crate) fn new_for_resolver(
-        resolver: Resolver,
+        resolver: Resolver<'db>,
         node: InFile<&SyntaxNode>,
-    ) -> SourceAnalyzer {
+    ) -> SourceAnalyzer<'db> {
         SourceAnalyzer { resolver, body_or_sig: None, file_id: node.file_id }
     }
 
@@ -216,11 +218,7 @@
         })
     }
 
-    pub(crate) fn expansion(&self, node: InFile<&ast::MacroCall>) -> Option<MacroCallId> {
-        self.store_sm()?.expansion(node)
-    }
-
-    fn trait_environment(&self, db: &dyn HirDatabase) -> Arc<TraitEnvironment> {
+    fn trait_environment(&self, db: &'db dyn HirDatabase) -> Arc<TraitEnvironment> {
         self.body_().map(|(def, ..)| def).map_or_else(
             || TraitEnvironment::empty(self.resolver.krate()),
             |def| db.trait_environment_for_body(def),
@@ -259,7 +257,7 @@
         infer.expr_adjustments.get(&expr_id).map(|v| &**v)
     }
 
-    pub(crate) fn type_of_type(&self, db: &dyn HirDatabase, ty: &ast::Type) -> Option<Type> {
+    pub(crate) fn type_of_type(&self, db: &'db dyn HirDatabase, ty: &ast::Type) -> Option<Type> {
         let type_ref = self.type_id(ty)?;
         let ty = TyLoweringContext::new(
             db,
@@ -277,7 +275,7 @@
 
     pub(crate) fn type_of_expr(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         expr: &ast::Expr,
     ) -> Option<(Type, Option<Type>)> {
         let expr_id = self.expr_id(expr.clone())?;
@@ -293,7 +291,7 @@
 
     pub(crate) fn type_of_pat(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         pat: &ast::Pat,
     ) -> Option<(Type, Option<Type>)> {
         let expr_or_pat_id = self.pat_id(pat)?;
@@ -316,7 +314,7 @@
 
     pub(crate) fn type_of_binding_in_pat(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         pat: &ast::IdentPat,
     ) -> Option<Type> {
         let binding_id = self.binding_id_of_pat(pat)?;
@@ -328,7 +326,7 @@
 
     pub(crate) fn type_of_self(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         _param: &ast::SelfParam,
     ) -> Option<Type> {
         let binding = self.body()?.self_param?;
@@ -338,7 +336,7 @@
 
     pub(crate) fn binding_mode_of_pat(
         &self,
-        _db: &dyn HirDatabase,
+        _db: &'db dyn HirDatabase,
         pat: &ast::IdentPat,
     ) -> Option<BindingMode> {
         let id = self.pat_id(&pat.clone().into())?;
@@ -353,7 +351,7 @@
     }
     pub(crate) fn pattern_adjustments(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         pat: &ast::Pat,
     ) -> Option<SmallVec<[Type; 1]>> {
         let pat_id = self.pat_id(pat)?;
@@ -370,7 +368,7 @@
 
     pub(crate) fn resolve_method_call_as_callable(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         call: &ast::MethodCallExpr,
     ) -> Option<Callable> {
         let expr_id = self.expr_id(call.clone().into())?.as_expr()?;
@@ -384,7 +382,7 @@
 
     pub(crate) fn resolve_method_call(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         call: &ast::MethodCallExpr,
     ) -> Option<Function> {
         let expr_id = self.expr_id(call.clone().into())?.as_expr()?;
@@ -395,7 +393,7 @@
 
     pub(crate) fn resolve_method_call_fallback(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         call: &ast::MethodCallExpr,
     ) -> Option<(Either<Function, Field>, Option<GenericSubstitution>)> {
         let expr_id = self.expr_id(call.clone().into())?.as_expr()?;
@@ -419,7 +417,7 @@
 
     pub(crate) fn resolve_expr_as_callable(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         call: &ast::Expr,
     ) -> Option<Callable> {
         let (orig, adjusted) = self.type_of_expr(db, &call.clone())?;
@@ -441,7 +439,7 @@
         &self,
         field_expr: ExprId,
         infer: &InferenceResult,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
     ) -> Option<GenericSubstitution> {
         let body = self.store()?;
         if let Expr::Field { expr: object_expr, name: _ } = body[field_expr] {
@@ -457,7 +455,7 @@
 
     pub(crate) fn resolve_field_fallback(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         field: &ast::FieldExpr,
     ) -> Option<(Either<Either<Field, TupleField>, Function>, Option<GenericSubstitution>)> {
         let (def, ..) = self.body_()?;
@@ -490,7 +488,7 @@
 
     pub(crate) fn resolve_range_pat(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         range_pat: &ast::RangePat,
     ) -> Option<StructId> {
         let path: ModPath = match (range_pat.op_kind()?, range_pat.start(), range_pat.end()) {
@@ -509,7 +507,7 @@
 
     pub(crate) fn resolve_range_expr(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         range_expr: &ast::RangeExpr,
     ) -> Option<StructId> {
         let path: ModPath = match (range_expr.op_kind()?, range_expr.start(), range_expr.end()) {
@@ -529,7 +527,7 @@
 
     pub(crate) fn resolve_await_to_poll(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         await_expr: &ast::AwaitExpr,
     ) -> Option<FunctionId> {
         let mut ty = self.ty_of_expr(await_expr.expr()?)?.clone();
@@ -566,7 +564,7 @@
 
     pub(crate) fn resolve_prefix_expr(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         prefix_expr: &ast::PrefixExpr,
     ) -> Option<FunctionId> {
         let (op_trait, op_fn) = match prefix_expr.op_kind()? {
@@ -608,7 +606,7 @@
 
     pub(crate) fn resolve_index_expr(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         index_expr: &ast::IndexExpr,
     ) -> Option<FunctionId> {
         let base_ty = self.ty_of_expr(index_expr.base()?)?;
@@ -640,7 +638,7 @@
 
     pub(crate) fn resolve_bin_expr(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         binop_expr: &ast::BinExpr,
     ) -> Option<FunctionId> {
         let op = binop_expr.op_kind()?;
@@ -661,7 +659,7 @@
 
     pub(crate) fn resolve_try_expr(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         try_expr: &ast::TryExpr,
     ) -> Option<FunctionId> {
         let ty = self.ty_of_expr(try_expr.expr()?)?;
@@ -680,7 +678,7 @@
 
     pub(crate) fn resolve_record_field(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         field: &ast::RecordExprField,
     ) -> Option<(Field, Option<Local>, Type, GenericSubstitution)> {
         let record_expr = ast::RecordExpr::cast(field.syntax().parent().and_then(|p| p.parent())?)?;
@@ -724,7 +722,7 @@
 
     pub(crate) fn resolve_record_pat_field(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         field: &ast::RecordPatField,
     ) -> Option<(Field, Type, GenericSubstitution)> {
         let field_name = field.field_name()?.as_name();
@@ -743,25 +741,9 @@
         ))
     }
 
-    pub(crate) fn resolve_macro_call(
-        &self,
-        db: &dyn HirDatabase,
-        macro_call: InFile<&ast::MacroCall>,
-    ) -> Option<Macro> {
-        let bs = self.store_sm()?;
-        bs.expansion(macro_call).and_then(|it| {
-            // FIXME: Block def maps
-            let def = it.lookup(db).def;
-            db.crate_def_map(def.krate)
-                .macro_def_to_macro_id
-                .get(&def.kind.erased_ast_id())
-                .map(|it| (*it).into())
-        })
-    }
-
     pub(crate) fn resolve_bind_pat_to_const(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         pat: &ast::IdentPat,
     ) -> Option<ModuleDef> {
         let expr_or_pat_id = self.pat_id(&pat.clone().into())?;
@@ -795,7 +777,7 @@
 
     pub(crate) fn resolve_offset_of_field(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         name_ref: &ast::NameRef,
     ) -> Option<(Either<crate::Variant, crate::Field>, GenericSubstitution)> {
         let offset_of_expr = ast::OffsetOfExpr::cast(name_ref.syntax().parent()?)?;
@@ -867,7 +849,7 @@
 
     pub(crate) fn resolve_path(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         path: &ast::Path,
     ) -> Option<(PathResolution, Option<GenericSubstitution>)> {
         let parent = path.syntax().parent();
@@ -1159,7 +1141,9 @@
                 prefer_value_ns,
                 name_hygiene(db, InFile::new(self.file_id, path.syntax())),
                 Some(&store),
-            )?;
+                false,
+            )
+            .any()?;
             let subst = (|| {
                 let parent = parent()?;
                 let ty = if let Some(expr) = ast::Expr::cast(parent.clone()) {
@@ -1209,9 +1193,29 @@
         }
     }
 
-    pub(crate) fn record_literal_missing_fields(
+    pub(crate) fn resolve_hir_path_per_ns(
         &self,
         db: &dyn HirDatabase,
+        path: &ast::Path,
+    ) -> Option<PathResolutionPerNs> {
+        let mut collector = ExprCollector::new(db, self.resolver.module(), self.file_id);
+        let hir_path =
+            collector.lower_path(path.clone(), &mut ExprCollector::impl_trait_error_allocator)?;
+        let store = collector.store.finish();
+        Some(resolve_hir_path_(
+            db,
+            &self.resolver,
+            &hir_path,
+            false,
+            name_hygiene(db, InFile::new(self.file_id, path.syntax())),
+            Some(&store),
+            true,
+        ))
+    }
+
+    pub(crate) fn record_literal_missing_fields(
+        &self,
+        db: &'db dyn HirDatabase,
         literal: &ast::RecordExpr,
     ) -> Option<Vec<(Field, Type)>> {
         let body = self.store()?;
@@ -1234,7 +1238,7 @@
 
     pub(crate) fn record_pattern_missing_fields(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         pattern: &ast::RecordPat,
     ) -> Option<Vec<(Field, Type)>> {
         let body = self.store()?;
@@ -1251,7 +1255,7 @@
 
     fn missing_fields(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         substs: &Substitution,
         variant: VariantId,
         missing_fields: Vec<LocalFieldId>,
@@ -1268,18 +1272,6 @@
             .collect()
     }
 
-    pub(crate) fn expand(
-        &self,
-        db: &dyn HirDatabase,
-        macro_call: InFile<&ast::MacroCall>,
-    ) -> Option<MacroCallId> {
-        self.store_sm().and_then(|bs| bs.expansion(macro_call)).or_else(|| {
-            self.resolver.item_scope().macro_invoc(
-                macro_call.with_value(db.ast_id_map(macro_call.file_id).ast_id(macro_call.value)),
-            )
-        })
-    }
-
     pub(crate) fn resolve_variant(&self, record_lit: ast::RecordExpr) -> Option<VariantId> {
         let infer = self.infer()?;
         let expr_id = self.expr_id(record_lit.into())?;
@@ -1288,7 +1280,7 @@
 
     pub(crate) fn is_unsafe_macro_call_expr(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         macro_expr: InFile<&ast::MacroExpr>,
     ) -> bool {
         if let Some((def, body, sm, Some(infer))) = self.body_() {
@@ -1313,7 +1305,7 @@
 
     pub(crate) fn resolve_offset_in_format_args(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         format_args: InFile<&ast::FormatArgsExpr>,
         offset: TextSize,
     ) -> Option<(TextRange, Option<PathResolution>)> {
@@ -1384,7 +1376,7 @@
 
     fn resolve_impl_method_or_trait_def(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         func: FunctionId,
         substs: Substitution,
     ) -> FunctionId {
@@ -1393,7 +1385,7 @@
 
     fn resolve_impl_method_or_trait_def_with_subst(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         func: FunctionId,
         substs: Substitution,
     ) -> (FunctionId, Substitution) {
@@ -1407,7 +1399,7 @@
 
     fn resolve_impl_const_or_trait_def_with_subst(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         const_id: ConstId,
         subs: Substitution,
     ) -> (ConstId, Substitution) {
@@ -1421,7 +1413,7 @@
 
     fn lang_trait_fn(
         &self,
-        db: &dyn HirDatabase,
+        db: &'db dyn HirDatabase,
         lang_trait: LangItem,
         method_name: &Name,
     ) -> Option<(TraitId, FunctionId)> {
@@ -1527,18 +1519,18 @@
 #[inline]
 pub(crate) fn resolve_hir_path(
     db: &dyn HirDatabase,
-    resolver: &Resolver,
+    resolver: &Resolver<'_>,
     path: &Path,
     hygiene: HygieneId,
     store: Option<&ExpressionStore>,
 ) -> Option<PathResolution> {
-    resolve_hir_path_(db, resolver, path, false, hygiene, store)
+    resolve_hir_path_(db, resolver, path, false, hygiene, store, false).any()
 }
 
 #[inline]
 pub(crate) fn resolve_hir_path_as_attr_macro(
     db: &dyn HirDatabase,
-    resolver: &Resolver,
+    resolver: &Resolver<'_>,
     path: &Path,
 ) -> Option<Macro> {
     resolver
@@ -1549,12 +1541,13 @@
 
 fn resolve_hir_path_(
     db: &dyn HirDatabase,
-    resolver: &Resolver,
+    resolver: &Resolver<'_>,
     path: &Path,
     prefer_value_ns: bool,
     hygiene: HygieneId,
     store: Option<&ExpressionStore>,
-) -> Option<PathResolution> {
+    resolve_per_ns: bool,
+) -> PathResolutionPerNs {
     let types = || {
         let (ty, unresolved) = match path.type_anchor() {
             Some(type_ref) => resolver.generic_def().and_then(|def| {
@@ -1635,14 +1628,36 @@
             .map(|(def, _)| PathResolution::Def(ModuleDef::Macro(def.into())))
     };
 
-    if prefer_value_ns { values().or_else(types) } else { types().or_else(values) }
-        .or_else(items)
-        .or_else(macros)
+    if resolve_per_ns {
+        PathResolutionPerNs {
+            type_ns: types().or_else(items),
+            value_ns: values(),
+            macro_ns: macros(),
+        }
+    } else {
+        let res = if prefer_value_ns {
+            values()
+                .map(|value_ns| PathResolutionPerNs::new(None, Some(value_ns), None))
+                .unwrap_or_else(|| PathResolutionPerNs::new(types(), None, None))
+        } else {
+            types()
+                .map(|type_ns| PathResolutionPerNs::new(Some(type_ns), None, None))
+                .unwrap_or_else(|| PathResolutionPerNs::new(None, values(), None))
+        };
+
+        if res.any().is_some() {
+            res
+        } else if let Some(type_ns) = items() {
+            PathResolutionPerNs::new(Some(type_ns), None, None)
+        } else {
+            PathResolutionPerNs::new(None, None, macros())
+        }
+    }
 }
 
 fn resolve_hir_value_path(
     db: &dyn HirDatabase,
-    resolver: &Resolver,
+    resolver: &Resolver<'_>,
     body_owner: Option<DefWithBodyId>,
     path: &Path,
     hygiene: HygieneId,
@@ -1680,7 +1695,7 @@
 /// then we know that `foo` in `my::foo::Bar` refers to the module, not the function.
 fn resolve_hir_path_qualifier(
     db: &dyn HirDatabase,
-    resolver: &Resolver,
+    resolver: &Resolver<'_>,
     path: &Path,
     store: &ExpressionStore,
 ) -> Option<PathResolution> {
diff --git a/crates/ide-assists/src/handlers/desugar_try_expr.rs b/crates/ide-assists/src/handlers/desugar_try_expr.rs
new file mode 100644
index 0000000..efadde9
--- /dev/null
+++ b/crates/ide-assists/src/handlers/desugar_try_expr.rs
@@ -0,0 +1,281 @@
+use std::iter;
+
+use ide_db::{
+    assists::{AssistId, ExprFillDefaultMode},
+    ty_filter::TryEnum,
+};
+use syntax::{
+    AstNode, T,
+    ast::{
+        self,
+        edit::{AstNodeEdit, IndentLevel},
+        make,
+        syntax_factory::SyntaxFactory,
+    },
+};
+
+use crate::assist_context::{AssistContext, Assists};
+
+// Assist: desugar_try_expr_match
+//
+// Replaces a `try` expression with a `match` expression.
+//
+// ```
+// # //- minicore: try, option
+// fn handle() {
+//     let pat = Some(true)$0?;
+// }
+// ```
+// ->
+// ```
+// fn handle() {
+//     let pat = match Some(true) {
+//         Some(it) => it,
+//         None => return None,
+//     };
+// }
+// ```
+
+// Assist: desugar_try_expr_let_else
+//
+// Replaces a `try` expression with a `let else` statement.
+//
+// ```
+// # //- minicore: try, option
+// fn handle() {
+//     let pat = Some(true)$0?;
+// }
+// ```
+// ->
+// ```
+// fn handle() {
+//     let Some(pat) = Some(true) else {
+//         return None;
+//     };
+// }
+// ```
+pub(crate) fn desugar_try_expr(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> {
+    let question_tok = ctx.find_token_syntax_at_offset(T![?])?;
+    let try_expr = question_tok.parent().and_then(ast::TryExpr::cast)?;
+
+    let expr = try_expr.expr()?;
+    let expr_type_info = ctx.sema.type_of_expr(&expr)?;
+
+    let try_enum = TryEnum::from_ty(&ctx.sema, &expr_type_info.original)?;
+
+    let target = try_expr.syntax().text_range();
+    acc.add(
+        AssistId::refactor_rewrite("desugar_try_expr_match"),
+        "Replace try expression with match",
+        target,
+        |edit| {
+            let sad_pat = match try_enum {
+                TryEnum::Option => make::path_pat(make::ext::ident_path("None")),
+                TryEnum::Result => make::tuple_struct_pat(
+                    make::ext::ident_path("Err"),
+                    iter::once(make::path_pat(make::ext::ident_path("err"))),
+                )
+                .into(),
+            };
+            let sad_expr = match try_enum {
+                TryEnum::Option => {
+                    make::expr_return(Some(make::expr_path(make::ext::ident_path("None"))))
+                }
+                TryEnum::Result => make::expr_return(Some(
+                    make::expr_call(
+                        make::expr_path(make::ext::ident_path("Err")),
+                        make::arg_list(iter::once(make::expr_path(make::ext::ident_path("err")))),
+                    )
+                    .into(),
+                )),
+            };
+
+            let happy_arm = make::match_arm(
+                try_enum.happy_pattern(make::ident_pat(false, false, make::name("it")).into()),
+                None,
+                make::expr_path(make::ext::ident_path("it")),
+            );
+            let sad_arm = make::match_arm(sad_pat, None, sad_expr);
+
+            let match_arm_list = make::match_arm_list([happy_arm, sad_arm]);
+
+            let expr_match = make::expr_match(expr.clone(), match_arm_list)
+                .indent(IndentLevel::from_node(try_expr.syntax()));
+
+            edit.replace_ast::<ast::Expr>(try_expr.clone().into(), expr_match.into());
+        },
+    );
+
+    if let Some(let_stmt) = try_expr.syntax().parent().and_then(ast::LetStmt::cast) {
+        if let_stmt.let_else().is_none() {
+            let pat = let_stmt.pat()?;
+            acc.add(
+                AssistId::refactor_rewrite("desugar_try_expr_let_else"),
+                "Replace try expression with let else",
+                target,
+                |builder| {
+                    let make = SyntaxFactory::with_mappings();
+                    let mut editor = builder.make_editor(let_stmt.syntax());
+
+                    let indent_level = IndentLevel::from_node(let_stmt.syntax());
+                    let new_let_stmt = make.let_else_stmt(
+                        try_enum.happy_pattern(pat),
+                        let_stmt.ty(),
+                        expr,
+                        make.block_expr(
+                            iter::once(
+                                make.expr_stmt(
+                                    make.expr_return(Some(match try_enum {
+                                        TryEnum::Option => make.expr_path(make.ident_path("None")),
+                                        TryEnum::Result => make
+                                            .expr_call(
+                                                make.expr_path(make.ident_path("Err")),
+                                                make.arg_list(iter::once(
+                                                    match ctx.config.expr_fill_default {
+                                                        ExprFillDefaultMode::Todo => make
+                                                            .expr_macro(
+                                                                make.ident_path("todo"),
+                                                                make.token_tree(
+                                                                    syntax::SyntaxKind::L_PAREN,
+                                                                    [],
+                                                                ),
+                                                            )
+                                                            .into(),
+                                                        ExprFillDefaultMode::Underscore => {
+                                                            make.expr_underscore().into()
+                                                        }
+                                                        ExprFillDefaultMode::Default => make
+                                                            .expr_macro(
+                                                                make.ident_path("todo"),
+                                                                make.token_tree(
+                                                                    syntax::SyntaxKind::L_PAREN,
+                                                                    [],
+                                                                ),
+                                                            )
+                                                            .into(),
+                                                    },
+                                                )),
+                                            )
+                                            .into(),
+                                    }))
+                                    .indent(indent_level + 1)
+                                    .into(),
+                                )
+                                .into(),
+                            ),
+                            None,
+                        )
+                        .indent(indent_level),
+                    );
+                    editor.replace(let_stmt.syntax(), new_let_stmt.syntax());
+                    editor.add_mappings(make.finish_with_mappings());
+                    builder.add_file_edits(ctx.vfs_file_id(), editor);
+                },
+            );
+        }
+    }
+    Some(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    use crate::tests::{check_assist, check_assist_by_label, check_assist_not_applicable};
+
+    #[test]
+    fn test_desugar_try_expr_not_applicable() {
+        check_assist_not_applicable(
+            desugar_try_expr,
+            r#"
+                fn test() {
+                    let pat: u32 = 25$0;
+                }
+            "#,
+        );
+    }
+
+    #[test]
+    fn test_desugar_try_expr_option() {
+        check_assist(
+            desugar_try_expr,
+            r#"
+//- minicore: try, option
+fn test() {
+    let pat = Some(true)$0?;
+}
+            "#,
+            r#"
+fn test() {
+    let pat = match Some(true) {
+        Some(it) => it,
+        None => return None,
+    };
+}
+            "#,
+        );
+    }
+
+    #[test]
+    fn test_desugar_try_expr_result() {
+        check_assist(
+            desugar_try_expr,
+            r#"
+//- minicore: try, from, result
+fn test() {
+    let pat = Ok(true)$0?;
+}
+            "#,
+            r#"
+fn test() {
+    let pat = match Ok(true) {
+        Ok(it) => it,
+        Err(err) => return Err(err),
+    };
+}
+            "#,
+        );
+    }
+
+    #[test]
+    fn test_desugar_try_expr_option_let_else() {
+        check_assist_by_label(
+            desugar_try_expr,
+            r#"
+//- minicore: try, option
+fn test() {
+    let pat = Some(true)$0?;
+}
+            "#,
+            r#"
+fn test() {
+    let Some(pat) = Some(true) else {
+        return None;
+    };
+}
+            "#,
+            "Replace try expression with let else",
+        );
+    }
+
+    #[test]
+    fn test_desugar_try_expr_result_let_else() {
+        check_assist_by_label(
+            desugar_try_expr,
+            r#"
+//- minicore: try, from, result
+fn test() {
+    let pat = Ok(true)$0?;
+}
+            "#,
+            r#"
+fn test() {
+    let Ok(pat) = Ok(true) else {
+        return Err(todo!());
+    };
+}
+            "#,
+            "Replace try expression with let else",
+        );
+    }
+}
diff --git a/crates/ide-assists/src/handlers/generate_mut_trait_impl.rs b/crates/ide-assists/src/handlers/generate_mut_trait_impl.rs
index 2ac960e..bab2ccf 100644
--- a/crates/ide-assists/src/handlers/generate_mut_trait_impl.rs
+++ b/crates/ide-assists/src/handlers/generate_mut_trait_impl.rs
@@ -1,7 +1,7 @@
 use ide_db::famous_defs::FamousDefs;
 use syntax::{
     AstNode,
-    ast::{self, make},
+    ast::{self, edit_in_place::Indent, make},
     ted,
 };
 
@@ -46,6 +46,7 @@
 // ```
 pub(crate) fn generate_mut_trait_impl(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> {
     let impl_def = ctx.find_node_at_offset::<ast::Impl>()?.clone_for_update();
+    let indent = impl_def.indent_level();
 
     let trait_ = impl_def.trait_()?;
     if let ast::Type::PathType(trait_path) = trait_ {
@@ -97,8 +98,8 @@
     })?;
 
     let assoc_list = make::assoc_item_list().clone_for_update();
-    assoc_list.add_item(syntax::ast::AssocItem::Fn(fn_));
     ted::replace(impl_def.assoc_item_list()?.syntax(), assoc_list.syntax());
+    impl_def.get_or_create_assoc_item_list().add_item(syntax::ast::AssocItem::Fn(fn_));
 
     let target = impl_def.syntax().text_range();
     acc.add(
@@ -106,7 +107,7 @@
         "Generate `IndexMut` impl from this `Index` trait",
         target,
         |edit| {
-            edit.insert(target.start(), format!("$0{impl_def}\n\n"));
+            edit.insert(target.start(), format!("$0{impl_def}\n\n{indent}"));
         },
     )
 }
@@ -190,6 +191,93 @@
     }
 
     #[test]
+    fn test_generate_mut_trait_impl_non_zero_indent() {
+        check_assist(
+            generate_mut_trait_impl,
+            r#"
+//- minicore: index
+mod foo {
+    pub enum Axis { X = 0, Y = 1, Z = 2 }
+
+    impl<T> core::ops::Index$0<Axis> for [T; 3] where T: Copy {
+        type Output = T;
+
+        fn index(&self, index: Axis) -> &Self::Output {
+            let var_name = &self[index as usize];
+            var_name
+        }
+    }
+}
+"#,
+            r#"
+mod foo {
+    pub enum Axis { X = 0, Y = 1, Z = 2 }
+
+    $0impl<T> core::ops::IndexMut<Axis> for [T; 3] where T: Copy {
+        fn index_mut(&mut self, index: Axis) -> &mut Self::Output {
+            let var_name = &self[index as usize];
+            var_name
+        }
+    }
+
+    impl<T> core::ops::Index<Axis> for [T; 3] where T: Copy {
+        type Output = T;
+
+        fn index(&self, index: Axis) -> &Self::Output {
+            let var_name = &self[index as usize];
+            var_name
+        }
+    }
+}
+"#,
+        );
+
+        check_assist(
+            generate_mut_trait_impl,
+            r#"
+//- minicore: index
+mod foo {
+    mod bar {
+        pub enum Axis { X = 0, Y = 1, Z = 2 }
+
+        impl<T> core::ops::Index$0<Axis> for [T; 3] where T: Copy {
+            type Output = T;
+
+            fn index(&self, index: Axis) -> &Self::Output {
+                let var_name = &self[index as usize];
+                var_name
+            }
+        }
+    }
+}
+"#,
+            r#"
+mod foo {
+    mod bar {
+        pub enum Axis { X = 0, Y = 1, Z = 2 }
+
+        $0impl<T> core::ops::IndexMut<Axis> for [T; 3] where T: Copy {
+            fn index_mut(&mut self, index: Axis) -> &mut Self::Output {
+                let var_name = &self[index as usize];
+                var_name
+            }
+        }
+
+        impl<T> core::ops::Index<Axis> for [T; 3] where T: Copy {
+            type Output = T;
+
+            fn index(&self, index: Axis) -> &Self::Output {
+                let var_name = &self[index as usize];
+                var_name
+            }
+        }
+    }
+}
+"#,
+        );
+    }
+
+    #[test]
     fn test_generate_mut_trait_impl_not_applicable() {
         check_assist_not_applicable(
             generate_mut_trait_impl,
diff --git a/crates/ide-assists/src/handlers/generate_new.rs b/crates/ide-assists/src/handlers/generate_new.rs
index f963f48..4837f92 100644
--- a/crates/ide-assists/src/handlers/generate_new.rs
+++ b/crates/ide-assists/src/handlers/generate_new.rs
@@ -129,17 +129,23 @@
 
         // Get the mutable version of the impl to modify
         let impl_def = if let Some(impl_def) = impl_def {
+            fn_.indent(impl_def.indent_level());
             builder.make_mut(impl_def)
         } else {
             // Generate a new impl to add the method to
             let impl_def = generate_impl(&ast::Adt::Struct(strukt.clone()));
+            let indent_level = strukt.indent_level();
+            fn_.indent(indent_level);
 
             // Insert it after the adt
             let strukt = builder.make_mut(strukt.clone());
 
             ted::insert_all_raw(
                 ted::Position::after(strukt.syntax()),
-                vec![make::tokens::blank_line().into(), impl_def.syntax().clone().into()],
+                vec![
+                    make::tokens::whitespace(&format!("\n\n{indent_level}")).into(),
+                    impl_def.syntax().clone().into(),
+                ],
             );
 
             impl_def
@@ -426,6 +432,135 @@
     }
 
     #[test]
+    fn non_zero_indent() {
+        check_assist(
+            generate_new,
+            r#"
+mod foo {
+    struct $0Foo {}
+}
+"#,
+            r#"
+mod foo {
+    struct Foo {}
+
+    impl Foo {
+        fn $0new() -> Self {
+            Self {  }
+        }
+    }
+}
+"#,
+        );
+        check_assist(
+            generate_new,
+            r#"
+mod foo {
+    mod bar {
+        struct $0Foo {}
+    }
+}
+"#,
+            r#"
+mod foo {
+    mod bar {
+        struct Foo {}
+
+        impl Foo {
+            fn $0new() -> Self {
+                Self {  }
+            }
+        }
+    }
+}
+"#,
+        );
+        check_assist(
+            generate_new,
+            r#"
+mod foo {
+    struct $0Foo {}
+
+    impl Foo {
+        fn some() {}
+    }
+}
+"#,
+            r#"
+mod foo {
+    struct Foo {}
+
+    impl Foo {
+        fn $0new() -> Self {
+            Self {  }
+        }
+
+        fn some() {}
+    }
+}
+"#,
+        );
+        check_assist(
+            generate_new,
+            r#"
+mod foo {
+    mod bar {
+        struct $0Foo {}
+
+        impl Foo {
+            fn some() {}
+        }
+    }
+}
+"#,
+            r#"
+mod foo {
+    mod bar {
+        struct Foo {}
+
+        impl Foo {
+            fn $0new() -> Self {
+                Self {  }
+            }
+
+            fn some() {}
+        }
+    }
+}
+"#,
+        );
+        check_assist(
+            generate_new,
+            r#"
+mod foo {
+    mod bar {
+struct $0Foo {}
+
+        impl Foo {
+            fn some() {}
+        }
+    }
+}
+"#,
+            r#"
+mod foo {
+    mod bar {
+struct Foo {}
+
+        impl Foo {
+            fn $0new() -> Self {
+                Self {  }
+            }
+
+            fn some() {}
+        }
+    }
+}
+"#,
+        );
+    }
+
+    #[test]
     fn check_visibility_of_new_fn_based_on_struct() {
         check_assist(
             generate_new,
diff --git a/crates/ide-assists/src/handlers/move_bounds.rs b/crates/ide-assists/src/handlers/move_bounds.rs
index 7e8735b..a9df6f6 100644
--- a/crates/ide-assists/src/handlers/move_bounds.rs
+++ b/crates/ide-assists/src/handlers/move_bounds.rs
@@ -1,3 +1,4 @@
+use either::Either;
 use syntax::{
     ast::{
         self, AstNode, HasName, HasTypeBounds,
@@ -30,10 +31,11 @@
 ) -> Option<()> {
     let type_param_list = ctx.find_node_at_offset::<ast::GenericParamList>()?;
 
-    let mut type_params = type_param_list.type_or_const_params();
+    let mut type_params = type_param_list.generic_params();
     if type_params.all(|p| match p {
-        ast::TypeOrConstParam::Type(t) => t.type_bound_list().is_none(),
-        ast::TypeOrConstParam::Const(_) => true,
+        ast::GenericParam::TypeParam(t) => t.type_bound_list().is_none(),
+        ast::GenericParam::LifetimeParam(l) => l.type_bound_list().is_none(),
+        ast::GenericParam::ConstParam(_) => true,
     }) {
         return None;
     }
@@ -53,20 +55,23 @@
                 match parent {
                     ast::Fn(it) => it.get_or_create_where_clause(),
                     ast::Trait(it) => it.get_or_create_where_clause(),
+                    ast::TraitAlias(it) => it.get_or_create_where_clause(),
                     ast::Impl(it) => it.get_or_create_where_clause(),
                     ast::Enum(it) => it.get_or_create_where_clause(),
                     ast::Struct(it) => it.get_or_create_where_clause(),
+                    ast::TypeAlias(it) => it.get_or_create_where_clause(),
                     _ => return,
                 }
             };
 
-            for toc_param in type_param_list.type_or_const_params() {
-                let type_param = match toc_param {
-                    ast::TypeOrConstParam::Type(x) => x,
-                    ast::TypeOrConstParam::Const(_) => continue,
+            for generic_param in type_param_list.generic_params() {
+                let param: &dyn HasTypeBounds = match &generic_param {
+                    ast::GenericParam::TypeParam(t) => t,
+                    ast::GenericParam::LifetimeParam(l) => l,
+                    ast::GenericParam::ConstParam(_) => continue,
                 };
-                if let Some(tbl) = type_param.type_bound_list() {
-                    if let Some(predicate) = build_predicate(type_param) {
+                if let Some(tbl) = param.type_bound_list() {
+                    if let Some(predicate) = build_predicate(generic_param) {
                         where_clause.add_predicate(predicate)
                     }
                     tbl.remove()
@@ -76,9 +81,23 @@
     )
 }
 
-fn build_predicate(param: ast::TypeParam) -> Option<ast::WherePred> {
-    let path = make::ext::ident_path(&param.name()?.syntax().to_string());
-    let predicate = make::where_pred(make::ty_path(path), param.type_bound_list()?.bounds());
+fn build_predicate(param: ast::GenericParam) -> Option<ast::WherePred> {
+    let target = match &param {
+        ast::GenericParam::TypeParam(t) => {
+            Either::Right(make::ty_path(make::ext::ident_path(&t.name()?.to_string())))
+        }
+        ast::GenericParam::LifetimeParam(l) => Either::Left(l.lifetime()?),
+        ast::GenericParam::ConstParam(_) => return None,
+    };
+    let predicate = make::where_pred(
+        target,
+        match param {
+            ast::GenericParam::TypeParam(t) => t.type_bound_list()?,
+            ast::GenericParam::LifetimeParam(l) => l.type_bound_list()?,
+            ast::GenericParam::ConstParam(_) => return None,
+        }
+        .bounds(),
+    );
     Some(predicate.clone_for_update())
 }
 
@@ -123,4 +142,13 @@
             r#"struct Pair<T>(T, T) where T: u32;"#,
         );
     }
+
+    #[test]
+    fn move_bounds_to_where_clause_trait() {
+        check_assist(
+            move_bounds_to_where_clause,
+            r#"trait T<'a: 'static, $0T: u32> {}"#,
+            r#"trait T<'a, T> where 'a: 'static, T: u32 {}"#,
+        );
+    }
 }
diff --git a/crates/ide-assists/src/handlers/remove_unused_imports.rs b/crates/ide-assists/src/handlers/remove_unused_imports.rs
index 1baf814..16debc4 100644
--- a/crates/ide-assists/src/handlers/remove_unused_imports.rs
+++ b/crates/ide-assists/src/handlers/remove_unused_imports.rs
@@ -1,6 +1,9 @@
 use std::collections::hash_map::Entry;
 
-use hir::{FileRange, InFile, InRealFile, Module, ModuleSource};
+use hir::{
+    FileRange, InFile, InRealFile, Module, ModuleDef, ModuleSource, PathResolution,
+    PathResolutionPerNs,
+};
 use ide_db::text_edit::TextRange;
 use ide_db::{
     FxHashMap, RootDatabase,
@@ -77,22 +80,17 @@
             };
 
             // Get the actual definition associated with this use item.
-            let res = match ctx.sema.resolve_path(&path) {
-                Some(x) => x,
-                None => {
+            let res = match ctx.sema.resolve_path_per_ns(&path) {
+                Some(x) if x.any().is_some() => x,
+                Some(_) | None => {
                     return None;
                 }
             };
 
-            let def = match res {
-                hir::PathResolution::Def(d) => Definition::from(d),
-                _ => return None,
-            };
-
             if u.star_token().is_some() {
                 // Check if any of the children of this module are used
-                let def_mod = match def {
-                    Definition::Module(module) => module,
+                let def_mod = match res.type_ns {
+                    Some(PathResolution::Def(ModuleDef::Module(module))) => module,
                     _ => return None,
                 };
 
@@ -105,21 +103,13 @@
                     })
                     .any(|d| used_once_in_scope(ctx, d, u.rename(), scope))
                 {
-                    return Some(u);
+                    Some(u)
+                } else {
+                    None
                 }
-            } else if let Definition::Trait(ref t) = def {
-                // If the trait or any item is used.
-                if !std::iter::once((def, u.rename()))
-                    .chain(t.items(ctx.db()).into_iter().map(|item| (item.into(), None)))
-                    .any(|(d, rename)| used_once_in_scope(ctx, d, rename, scope))
-                {
-                    return Some(u);
-                }
-            } else if !used_once_in_scope(ctx, def, u.rename(), scope) {
-                return Some(u);
+            } else {
+                is_path_per_ns_unused_in_scope(ctx, &u, scope, &res).then_some(u)
             }
-
-            None
         })
         .peekable();
 
@@ -141,6 +131,52 @@
     }
 }
 
+fn is_path_per_ns_unused_in_scope(
+    ctx: &AssistContext<'_>,
+    u: &ast::UseTree,
+    scope: &mut Vec<SearchScope>,
+    path: &PathResolutionPerNs,
+) -> bool {
+    if let Some(PathResolution::Def(ModuleDef::Trait(ref t))) = path.type_ns {
+        if is_trait_unused_in_scope(ctx, u, scope, t) {
+            let path = [path.value_ns, path.macro_ns];
+            is_path_unused_in_scope(ctx, u, scope, &path)
+        } else {
+            false
+        }
+    } else {
+        let path = [path.type_ns, path.value_ns, path.macro_ns];
+        is_path_unused_in_scope(ctx, u, scope, &path)
+    }
+}
+
+fn is_path_unused_in_scope(
+    ctx: &AssistContext<'_>,
+    u: &ast::UseTree,
+    scope: &mut Vec<SearchScope>,
+    path: &[Option<PathResolution>],
+) -> bool {
+    !path
+        .iter()
+        .filter_map(|path| *path)
+        .filter_map(|res| match res {
+            PathResolution::Def(d) => Some(Definition::from(d)),
+            _ => None,
+        })
+        .any(|def| used_once_in_scope(ctx, def, u.rename(), scope))
+}
+
+fn is_trait_unused_in_scope(
+    ctx: &AssistContext<'_>,
+    u: &ast::UseTree,
+    scope: &mut Vec<SearchScope>,
+    t: &hir::Trait,
+) -> bool {
+    !std::iter::once((Definition::Trait(*t), u.rename()))
+        .chain(t.items(ctx.db()).into_iter().map(|item| (item.into(), None)))
+        .any(|(d, rename)| used_once_in_scope(ctx, d, rename, scope))
+}
+
 fn used_once_in_scope(
     ctx: &AssistContext<'_>,
     def: Definition,
@@ -1012,4 +1048,110 @@
 "#,
         );
     }
+
+    #[test]
+    fn test_unused_macro() {
+        check_assist(
+            remove_unused_imports,
+            r#"
+//- /foo.rs crate:foo
+#[macro_export]
+macro_rules! m { () => {} }
+
+//- /main.rs crate:main deps:foo
+use foo::m;$0
+fn main() {}
+"#,
+            r#"
+fn main() {}
+"#,
+        );
+
+        check_assist_not_applicable(
+            remove_unused_imports,
+            r#"
+//- /foo.rs crate:foo
+#[macro_export]
+macro_rules! m { () => {} }
+
+//- /main.rs crate:main deps:foo
+use foo::m;$0
+fn main() {
+    m!();
+}
+"#,
+        );
+
+        check_assist_not_applicable(
+            remove_unused_imports,
+            r#"
+//- /foo.rs crate:foo
+#[macro_export]
+macro_rules! m { () => {} }
+
+//- /bar.rs crate:bar deps:foo
+pub use foo::m;
+fn m() {}
+
+
+//- /main.rs crate:main deps:bar
+use bar::m;$0
+fn main() {
+    m!();
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn test_conflict_derive_macro() {
+        check_assist_not_applicable(
+            remove_unused_imports,
+            r#"
+//- proc_macros: derive_identity
+//- minicore: derive
+//- /bar.rs crate:bar
+pub use proc_macros::DeriveIdentity;
+pub trait DeriveIdentity {}
+
+//- /main.rs crate:main deps:bar
+$0use bar::DeriveIdentity;$0
+#[derive(DeriveIdentity)]
+struct S;
+"#,
+        );
+
+        check_assist_not_applicable(
+            remove_unused_imports,
+            r#"
+//- proc_macros: derive_identity
+//- minicore: derive
+//- /bar.rs crate:bar
+pub use proc_macros::DeriveIdentity;
+pub fn DeriveIdentity() {}
+
+//- /main.rs crate:main deps:bar
+$0use bar::DeriveIdentity;$0
+#[derive(DeriveIdentity)]
+struct S;
+"#,
+        );
+
+        check_assist_not_applicable(
+            remove_unused_imports,
+            r#"
+//- proc_macros: derive_identity
+//- minicore: derive
+//- /bar.rs crate:bar
+pub use proc_macros::DeriveIdentity;
+pub fn DeriveIdentity() {}
+
+//- /main.rs crate:main deps:bar
+$0use bar::DeriveIdentity;$0
+fn main() {
+    DeriveIdentity();
+}
+"#,
+        );
+    }
 }
diff --git a/crates/ide-assists/src/handlers/replace_try_expr_with_match.rs b/crates/ide-assists/src/handlers/replace_try_expr_with_match.rs
deleted file mode 100644
index c6e864f..0000000
--- a/crates/ide-assists/src/handlers/replace_try_expr_with_match.rs
+++ /dev/null
@@ -1,148 +0,0 @@
-use std::iter;
-
-use ide_db::{assists::AssistId, ty_filter::TryEnum};
-use syntax::{
-    AstNode, T,
-    ast::{
-        self,
-        edit::{AstNodeEdit, IndentLevel},
-        make,
-    },
-};
-
-use crate::assist_context::{AssistContext, Assists};
-
-// Assist: replace_try_expr_with_match
-//
-// Replaces a `try` expression with a `match` expression.
-//
-// ```
-// # //- minicore: try, option
-// fn handle() {
-//     let pat = Some(true)$0?;
-// }
-// ```
-// ->
-// ```
-// fn handle() {
-//     let pat = match Some(true) {
-//         Some(it) => it,
-//         None => return None,
-//     };
-// }
-// ```
-pub(crate) fn replace_try_expr_with_match(
-    acc: &mut Assists,
-    ctx: &AssistContext<'_>,
-) -> Option<()> {
-    let qm_kw = ctx.find_token_syntax_at_offset(T![?])?;
-    let qm_kw_parent = qm_kw.parent().and_then(ast::TryExpr::cast)?;
-
-    let expr = qm_kw_parent.expr()?;
-    let expr_type_info = ctx.sema.type_of_expr(&expr)?;
-
-    let try_enum = TryEnum::from_ty(&ctx.sema, &expr_type_info.original)?;
-
-    let target = qm_kw_parent.syntax().text_range();
-    acc.add(
-        AssistId::refactor_rewrite("replace_try_expr_with_match"),
-        "Replace try expression with match",
-        target,
-        |edit| {
-            let sad_pat = match try_enum {
-                TryEnum::Option => make::path_pat(make::ext::ident_path("None")),
-                TryEnum::Result => make::tuple_struct_pat(
-                    make::ext::ident_path("Err"),
-                    iter::once(make::path_pat(make::ext::ident_path("err"))),
-                )
-                .into(),
-            };
-            let sad_expr = match try_enum {
-                TryEnum::Option => {
-                    make::expr_return(Some(make::expr_path(make::ext::ident_path("None"))))
-                }
-                TryEnum::Result => make::expr_return(Some(
-                    make::expr_call(
-                        make::expr_path(make::ext::ident_path("Err")),
-                        make::arg_list(iter::once(make::expr_path(make::ext::ident_path("err")))),
-                    )
-                    .into(),
-                )),
-            };
-
-            let happy_arm = make::match_arm(
-                try_enum.happy_pattern(make::ident_pat(false, false, make::name("it")).into()),
-                None,
-                make::expr_path(make::ext::ident_path("it")),
-            );
-            let sad_arm = make::match_arm(sad_pat, None, sad_expr);
-
-            let match_arm_list = make::match_arm_list([happy_arm, sad_arm]);
-
-            let expr_match = make::expr_match(expr, match_arm_list)
-                .indent(IndentLevel::from_node(qm_kw_parent.syntax()));
-            edit.replace_ast::<ast::Expr>(qm_kw_parent.into(), expr_match.into());
-        },
-    )
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    use crate::tests::{check_assist, check_assist_not_applicable};
-
-    #[test]
-    fn test_replace_try_expr_with_match_not_applicable() {
-        check_assist_not_applicable(
-            replace_try_expr_with_match,
-            r#"
-                fn test() {
-                    let pat: u32 = 25$0;
-                }
-            "#,
-        );
-    }
-
-    #[test]
-    fn test_replace_try_expr_with_match_option() {
-        check_assist(
-            replace_try_expr_with_match,
-            r#"
-//- minicore: try, option
-fn test() {
-    let pat = Some(true)$0?;
-}
-            "#,
-            r#"
-fn test() {
-    let pat = match Some(true) {
-        Some(it) => it,
-        None => return None,
-    };
-}
-            "#,
-        );
-    }
-
-    #[test]
-    fn test_replace_try_expr_with_match_result() {
-        check_assist(
-            replace_try_expr_with_match,
-            r#"
-//- minicore: try, from, result
-fn test() {
-    let pat = Ok(true)$0?;
-}
-            "#,
-            r#"
-fn test() {
-    let pat = match Ok(true) {
-        Ok(it) => it,
-        Err(err) => return Err(err),
-    };
-}
-            "#,
-        );
-    }
-}
diff --git a/crates/ide-assists/src/handlers/unwrap_type_to_generic_arg.rs b/crates/ide-assists/src/handlers/unwrap_type_to_generic_arg.rs
new file mode 100644
index 0000000..7b5adc1
--- /dev/null
+++ b/crates/ide-assists/src/handlers/unwrap_type_to_generic_arg.rs
@@ -0,0 +1,156 @@
+use ide_db::assists::AssistId;
+use syntax::{
+    AstNode,
+    ast::{self, GenericArg, HasGenericArgs},
+};
+
+use crate::{AssistContext, Assists};
+
+// Assist: unwrap_type_to_generic_arg
+//
+// This assist unwraps a type into its generic type argument.
+//
+// ```
+// fn foo() -> $0Option<i32> {
+//     todo!()
+// }
+// ```
+// ->
+// ```
+// fn foo() -> i32 {
+//     todo!()
+// }
+// ```
+pub(crate) fn unwrap_type_to_generic_arg(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> {
+    let path_type = ctx.find_node_at_offset::<ast::PathType>()?;
+    let path = path_type.path()?;
+    let segment = path.segment()?;
+    let args_list = segment.generic_arg_list()?;
+
+    let mut generic_arg = None;
+
+    for arg in args_list.generic_args() {
+        match arg {
+            GenericArg::ConstArg(_) | GenericArg::LifetimeArg(_) => (),
+            GenericArg::TypeArg(arg) if generic_arg.is_none() => {
+                generic_arg = Some(arg);
+            }
+            _ => return None,
+        }
+    }
+
+    let generic_arg = generic_arg?;
+
+    acc.add(
+        AssistId::refactor_extract("unwrap_type_to_generic_arg"),
+        format!("Unwrap type to type argument {generic_arg}"),
+        path_type.syntax().text_range(),
+        |builder| {
+            let mut editor = builder.make_editor(path_type.syntax());
+            editor.replace(path_type.syntax(), generic_arg.syntax());
+
+            builder.add_file_edits(ctx.vfs_file_id(), editor);
+        },
+    )
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::tests::{check_assist, check_assist_not_applicable};
+
+    #[test]
+    fn test_unwrap_type_to_generic_arg() {
+        check_assist(
+            unwrap_type_to_generic_arg,
+            r#"
+//- minicore: option
+fn foo() -> $0Option<i32> {
+    todo!()
+}
+"#,
+            r#"
+fn foo() -> i32 {
+    todo!()
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn unwrap_type_to_generic_arg_not_applicable_for_non_generic_arg_list() {
+        check_assist_not_applicable(
+            unwrap_type_to_generic_arg,
+            r#"
+fn foo() -> $0i32 {}
+"#,
+        );
+    }
+
+    #[test]
+    fn unwrap_type_to_generic_arg_not_applicable_for_multiple_generic_args() {
+        check_assist_not_applicable(
+            unwrap_type_to_generic_arg,
+            r#"
+//- minicore: result
+fn foo() -> $0Result<i32, ()> {
+    todo!()
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn unwrap_type_to_generic_arg_with_lifetime_and_const() {
+        check_assist(
+            unwrap_type_to_generic_arg,
+            r#"
+enum Foo<'a, T, const N: usize> {
+    Bar(T),
+    Baz(&'a [T; N]),
+}
+
+fn test<'a>() -> $0Foo<'a, i32, 3> {
+    todo!()
+}
+"#,
+            r#"
+enum Foo<'a, T, const N: usize> {
+    Bar(T),
+    Baz(&'a [T; N]),
+}
+
+fn test<'a>() -> i32 {
+    todo!()
+}
+"#,
+        );
+    }
+
+    #[test]
+    fn unwrap_type_to_generic_arg_in_let_stmt() {
+        check_assist(
+            unwrap_type_to_generic_arg,
+            r#"
+enum Foo<T> {
+    Bar(T),
+    Baz,
+}
+
+fn test() {
+    let foo: $0Foo<i32> = todo!();
+}
+"#,
+            r#"
+enum Foo<T> {
+    Bar(T),
+    Baz,
+}
+
+fn test() {
+    let foo: i32 = todo!();
+}
+"#,
+        );
+    }
+}
diff --git a/crates/ide-assists/src/lib.rs b/crates/ide-assists/src/lib.rs
index 627ed37..c260443 100644
--- a/crates/ide-assists/src/lib.rs
+++ b/crates/ide-assists/src/lib.rs
@@ -139,6 +139,7 @@
     mod destructure_struct_binding;
     mod destructure_tuple_binding;
     mod desugar_doc_comment;
+    mod desugar_try_expr;
     mod expand_glob_import;
     mod expand_rest_pattern;
     mod extract_expressions_from_format_string;
@@ -214,7 +215,6 @@
     mod replace_named_generic_with_impl;
     mod replace_qualified_name_with_use;
     mod replace_string_with_char;
-    mod replace_try_expr_with_match;
     mod replace_turbofish_with_explicit_type;
     mod sort_items;
     mod split_import;
@@ -229,6 +229,7 @@
     mod unwrap_block;
     mod unwrap_return_type;
     mod unwrap_tuple;
+    mod unwrap_type_to_generic_arg;
     mod wrap_return_type;
     mod wrap_unwrap_cfg_attr;
 
@@ -272,6 +273,7 @@
             destructure_struct_binding::destructure_struct_binding,
             destructure_tuple_binding::destructure_tuple_binding,
             desugar_doc_comment::desugar_doc_comment,
+            desugar_try_expr::desugar_try_expr,
             expand_glob_import::expand_glob_import,
             expand_glob_import::expand_glob_reexport,
             expand_rest_pattern::expand_rest_pattern,
@@ -353,7 +355,6 @@
             replace_method_eager_lazy::replace_with_lazy_method,
             replace_named_generic_with_impl::replace_named_generic_with_impl,
             replace_qualified_name_with_use::replace_qualified_name_with_use,
-            replace_try_expr_with_match::replace_try_expr_with_match,
             replace_turbofish_with_explicit_type::replace_turbofish_with_explicit_type,
             sort_items::sort_items,
             split_import::split_import,
@@ -369,6 +370,7 @@
             unwrap_block::unwrap_block,
             unwrap_return_type::unwrap_return_type,
             unwrap_tuple::unwrap_tuple,
+            unwrap_type_to_generic_arg::unwrap_type_to_generic_arg,
             wrap_return_type::wrap_return_type,
             wrap_unwrap_cfg_attr::wrap_unwrap_cfg_attr,
 
diff --git a/crates/ide-assists/src/tests/generated.rs b/crates/ide-assists/src/tests/generated.rs
index 01ab0be..72f7195 100644
--- a/crates/ide-assists/src/tests/generated.rs
+++ b/crates/ide-assists/src/tests/generated.rs
@@ -930,6 +930,47 @@
 }
 
 #[test]
+fn doctest_desugar_try_expr_let_else() {
+    check_doc_test(
+        "desugar_try_expr_let_else",
+        r#####"
+//- minicore: try, option
+fn handle() {
+    let pat = Some(true)$0?;
+}
+"#####,
+        r#####"
+fn handle() {
+    let Some(pat) = Some(true) else {
+        return None;
+    };
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_desugar_try_expr_match() {
+    check_doc_test(
+        "desugar_try_expr_match",
+        r#####"
+//- minicore: try, option
+fn handle() {
+    let pat = Some(true)$0?;
+}
+"#####,
+        r#####"
+fn handle() {
+    let pat = match Some(true) {
+        Some(it) => it,
+        None => return None,
+    };
+}
+"#####,
+    )
+}
+
+#[test]
 fn doctest_expand_glob_import() {
     check_doc_test(
         "expand_glob_import",
@@ -3097,27 +3138,6 @@
 }
 
 #[test]
-fn doctest_replace_try_expr_with_match() {
-    check_doc_test(
-        "replace_try_expr_with_match",
-        r#####"
-//- minicore: try, option
-fn handle() {
-    let pat = Some(true)$0?;
-}
-"#####,
-        r#####"
-fn handle() {
-    let pat = match Some(true) {
-        Some(it) => it,
-        None => return None,
-    };
-}
-"#####,
-    )
-}
-
-#[test]
 fn doctest_replace_turbofish_with_explicit_type() {
     check_doc_test(
         "replace_turbofish_with_explicit_type",
@@ -3482,6 +3502,23 @@
 }
 
 #[test]
+fn doctest_unwrap_type_to_generic_arg() {
+    check_doc_test(
+        "unwrap_type_to_generic_arg",
+        r#####"
+fn foo() -> $0Option<i32> {
+    todo!()
+}
+"#####,
+        r#####"
+fn foo() -> i32 {
+    todo!()
+}
+"#####,
+    )
+}
+
+#[test]
 fn doctest_wrap_return_type_in_option() {
     check_doc_test(
         "wrap_return_type_in_option",
diff --git a/crates/ide-completion/src/completions/env_vars.rs b/crates/ide-completion/src/completions/env_vars.rs
index cd18b3d..92cbf41 100644
--- a/crates/ide-completion/src/completions/env_vars.rs
+++ b/crates/ide-completion/src/completions/env_vars.rs
@@ -13,6 +13,7 @@
 const CARGO_DEFINED_VARS: &[(&str, &str)] = &[
     ("CARGO", "Path to the cargo binary performing the build"),
     ("CARGO_MANIFEST_DIR", "The directory containing the manifest of your package"),
+    ("CARGO_MANIFEST_PATH", "The path to the manifest of your package"),
     ("CARGO_PKG_VERSION", "The full version of your package"),
     ("CARGO_PKG_VERSION_MAJOR", "The major version of your package"),
     ("CARGO_PKG_VERSION_MINOR", "The minor version of your package"),
diff --git a/crates/ide-completion/src/completions/postfix.rs b/crates/ide-completion/src/completions/postfix.rs
index 54be7d2..3cdf211 100644
--- a/crates/ide-completion/src/completions/postfix.rs
+++ b/crates/ide-completion/src/completions/postfix.rs
@@ -311,6 +311,8 @@
 
     let mut prefix = String::new();
 
+    let mut found_ref_or_deref = false;
+
     while let Some(parent_deref_element) =
         resulting_element.syntax().parent().and_then(ast::PrefixExpr::cast)
     {
@@ -318,27 +320,26 @@
             break;
         }
 
+        found_ref_or_deref = true;
         resulting_element = ast::Expr::from(parent_deref_element);
 
         prefix.insert(0, '*');
     }
 
-    if let Some(first_ref_expr) = resulting_element.syntax().parent().and_then(ast::RefExpr::cast) {
-        if let Some(expr) = first_ref_expr.expr() {
-            resulting_element = expr;
-        }
+    while let Some(parent_ref_element) =
+        resulting_element.syntax().parent().and_then(ast::RefExpr::cast)
+    {
+        found_ref_or_deref = true;
+        let exclusive = parent_ref_element.mut_token().is_some();
+        resulting_element = ast::Expr::from(parent_ref_element);
 
-        while let Some(parent_ref_element) =
-            resulting_element.syntax().parent().and_then(ast::RefExpr::cast)
-        {
-            let exclusive = parent_ref_element.mut_token().is_some();
-            resulting_element = ast::Expr::from(parent_ref_element);
+        prefix.insert_str(0, if exclusive { "&mut " } else { "&" });
+    }
 
-            prefix.insert_str(0, if exclusive { "&mut " } else { "&" });
-        }
-    } else {
-        // If we do not find any ref expressions, restore
+    if !found_ref_or_deref {
+        // If we do not find any ref/deref expressions, restore
         // all the progress of tree climbing
+        prefix.clear();
         resulting_element = initial_element.clone();
     }
 
diff --git a/crates/ide-completion/src/context.rs b/crates/ide-completion/src/context.rs
index 3baf1f3..5287627 100644
--- a/crates/ide-completion/src/context.rs
+++ b/crates/ide-completion/src/context.rs
@@ -8,8 +8,8 @@
 
 use base_db::RootQueryDb as _;
 use hir::{
-    DisplayTarget, HasAttrs, Local, ModuleDef, ModuleSource, Name, PathResolution, ScopeDef,
-    Semantics, SemanticsScope, Symbol, Type, TypeInfo,
+    DisplayTarget, HasAttrs, InFile, Local, ModuleDef, ModuleSource, Name, PathResolution,
+    ScopeDef, Semantics, SemanticsScope, Symbol, Type, TypeInfo,
 };
 use ide_db::{
     FilePosition, FxHashMap, FxHashSet, RootDatabase, famous_defs::FamousDefs,
@@ -751,7 +751,7 @@
             original_offset,
         } = expand_and_analyze(
             &sema,
-            original_file.syntax().clone(),
+            InFile::new(editioned_file_id.into(), original_file.syntax().clone()),
             file_with_fake_ident.syntax().clone(),
             offset,
             &original_token,
diff --git a/crates/ide-completion/src/context/analysis.rs b/crates/ide-completion/src/context/analysis.rs
index 391e237..7a2230b 100644
--- a/crates/ide-completion/src/context/analysis.rs
+++ b/crates/ide-completion/src/context/analysis.rs
@@ -1,7 +1,7 @@
 //! Module responsible for analyzing the code surrounding the cursor for completion.
 use std::iter;
 
-use hir::{ExpandResult, Semantics, Type, TypeInfo, Variant};
+use hir::{ExpandResult, InFile, Semantics, Type, TypeInfo, Variant};
 use ide_db::{RootDatabase, active_parameter::ActiveParameter};
 use itertools::Either;
 use syntax::{
@@ -50,7 +50,7 @@
 
 pub(super) fn expand_and_analyze(
     sema: &Semantics<'_, RootDatabase>,
-    original_file: SyntaxNode,
+    original_file: InFile<SyntaxNode>,
     speculative_file: SyntaxNode,
     offset: TextSize,
     original_token: &SyntaxToken,
@@ -72,7 +72,7 @@
         relative_offset,
     )
     .unwrap_or(ExpansionResult {
-        original_file,
+        original_file: original_file.value,
         speculative_file,
         original_offset: offset,
         speculative_offset: fake_ident_token.text_range().start(),
@@ -125,7 +125,7 @@
 /// the best we can do.
 fn expand_maybe_stop(
     sema: &Semantics<'_, RootDatabase>,
-    original_file: SyntaxNode,
+    original_file: InFile<SyntaxNode>,
     speculative_file: SyntaxNode,
     original_offset: TextSize,
     fake_ident_token: SyntaxToken,
@@ -142,17 +142,16 @@
         return result;
     }
 
-    // This needs to come after the recursive call, because our "inside macro" detection is subtly wrong
-    // with regard to attribute macros named `test` that are not std's test. So hopefully we will expand
-    // them successfully above and be able to analyze.
-    // Left biased since there may already be an identifier token there, and we appended to it.
-    if !sema.might_be_inside_macro_call(&fake_ident_token)
-        && token_at_offset_ignore_whitespace(&original_file, original_offset + relative_offset)
-            .is_some_and(|original_token| !sema.might_be_inside_macro_call(&original_token))
+    // We can't check whether the fake expansion is inside macro call, because that requires semantic info.
+    // But hopefully checking just the real one should be enough.
+    if token_at_offset_ignore_whitespace(&original_file.value, original_offset + relative_offset)
+        .is_some_and(|original_token| {
+            !sema.is_inside_macro_call(original_file.with_value(&original_token))
+        })
     {
         // Recursion base case.
         Some(ExpansionResult {
-            original_file,
+            original_file: original_file.value,
             speculative_file,
             original_offset,
             speculative_offset: fake_ident_token.text_range().start(),
@@ -166,7 +165,7 @@
 
 fn expand(
     sema: &Semantics<'_, RootDatabase>,
-    original_file: SyntaxNode,
+    original_file: InFile<SyntaxNode>,
     speculative_file: SyntaxNode,
     original_offset: TextSize,
     fake_ident_token: SyntaxToken,
@@ -176,7 +175,7 @@
 
     let parent_item =
         |item: &ast::Item| item.syntax().ancestors().skip(1).find_map(ast::Item::cast);
-    let original_node = token_at_offset_ignore_whitespace(&original_file, original_offset)
+    let original_node = token_at_offset_ignore_whitespace(&original_file.value, original_offset)
         .and_then(|token| token.parent_ancestors().find_map(ast::Item::cast));
     let ancestor_items = iter::successors(
         Option::zip(
@@ -249,7 +248,7 @@
     }
 
     // No attributes have been expanded, so look for macro_call! token trees or derive token trees
-    let orig_tt = ancestors_at_offset(&original_file, original_offset)
+    let orig_tt = ancestors_at_offset(&original_file.value, original_offset)
         .map_while(Either::<ast::TokenTree, ast::Meta>::cast)
         .last()?;
     let spec_tt = ancestors_at_offset(&speculative_file, fake_ident_token.text_range().start())
@@ -292,7 +291,7 @@
                 fake_mapped_tokens.into_iter().min_by_key(|(_, rank)| *rank)
             {
                 return Some(ExpansionResult {
-                    original_file,
+                    original_file: original_file.value,
                     speculative_file,
                     original_offset,
                     speculative_offset: fake_ident_token.text_range().start(),
@@ -349,7 +348,7 @@
                                 }
                                 let result = expand_maybe_stop(
                                     sema,
-                                    actual_expansion.clone(),
+                                    InFile::new(file.into(), actual_expansion.clone()),
                                     fake_expansion.clone(),
                                     new_offset,
                                     fake_mapped_token,
@@ -883,9 +882,10 @@
             },
             ast::MethodCallExpr(method) => {
                 let receiver = find_opt_node_in_file(original_file, method.receiver());
+                let has_parens = has_parens(&method);
                 let kind = NameRefKind::DotAccess(DotAccess {
                     receiver_ty: receiver.as_ref().and_then(|it| sema.type_of_expr(it)),
-                    kind: DotAccessKind::Method { has_parens: method.arg_list().is_some_and(|it| it.l_paren_token().is_some()) },
+                    kind: DotAccessKind::Method { has_parens },
                     receiver,
                     ctx: DotAccessExprCtx { in_block_expr: is_in_block(method.syntax()), in_breakable: is_in_breakable(method.syntax()) }
                 });
@@ -1372,7 +1372,7 @@
                         }
                     }
 
-                    path_ctx.has_call_parens = it.syntax().parent().is_some_and(|it| ast::CallExpr::can_cast(it.kind()));
+                    path_ctx.has_call_parens = it.syntax().parent().is_some_and(|it| ast::CallExpr::cast(it).is_some_and(|it| has_parens(&it)));
 
                     make_path_kind_expr(it.into())
                 },
@@ -1401,7 +1401,7 @@
                         match parent {
                             ast::PathType(it) => make_path_kind_type(it.into()),
                             ast::PathExpr(it) => {
-                                path_ctx.has_call_parens = it.syntax().parent().is_some_and(|it| ast::CallExpr::can_cast(it.kind()));
+                                path_ctx.has_call_parens = it.syntax().parent().is_some_and(|it| ast::CallExpr::cast(it).is_some_and(|it| has_parens(&it)));
 
                                 make_path_kind_expr(it.into())
                             },
@@ -1559,6 +1559,30 @@
     Some((NameRefContext { nameref, kind: NameRefKind::Path(path_ctx) }, qualifier_ctx))
 }
 
+/// When writing in the middle of some code the following situation commonly occurs (`|` denotes the cursor):
+/// ```ignore
+/// value.method|
+/// (1, 2, 3)
+/// ```
+/// Here, we want to complete the method parentheses & arguments (if the corresponding settings are on),
+/// but the thing is parsed as a method call with parentheses. Therefore we use heuristics: if the parentheses
+/// are on the next line, consider them non-existent.
+fn has_parens(node: &dyn HasArgList) -> bool {
+    let Some(arg_list) = node.arg_list() else { return false };
+    if arg_list.l_paren_token().is_none() {
+        return false;
+    }
+    let prev_siblings = iter::successors(arg_list.syntax().prev_sibling_or_token(), |it| {
+        it.prev_sibling_or_token()
+    });
+    prev_siblings
+        .take_while(|syntax| syntax.kind().is_trivia())
+        .filter_map(|syntax| {
+            syntax.into_token().filter(|token| token.kind() == SyntaxKind::WHITESPACE)
+        })
+        .all(|whitespace| !whitespace.text().contains('\n'))
+}
+
 fn pattern_context_for(
     sema: &Semantics<'_, RootDatabase>,
     original_file: &SyntaxNode,
diff --git a/crates/ide-completion/src/tests/expression.rs b/crates/ide-completion/src/tests/expression.rs
index d513794..b46e4c3 100644
--- a/crates/ide-completion/src/tests/expression.rs
+++ b/crates/ide-completion/src/tests/expression.rs
@@ -2112,6 +2112,56 @@
 }
 
 #[test]
+fn cfg_attr_attr_macro() {
+    check(
+        r#"
+//- proc_macros: identity
+#[cfg_attr(test, proc_macros::identity)]
+fn foo() {
+    $0
+}
+    "#,
+        expect![[r#"
+            fn foo()  fn()
+            md proc_macros
+            bt u32     u32
+            kw async
+            kw const
+            kw crate::
+            kw enum
+            kw extern
+            kw false
+            kw fn
+            kw for
+            kw if
+            kw if let
+            kw impl
+            kw impl for
+            kw let
+            kw letm
+            kw loop
+            kw match
+            kw mod
+            kw return
+            kw self::
+            kw static
+            kw struct
+            kw trait
+            kw true
+            kw type
+            kw union
+            kw unsafe
+            kw use
+            kw while
+            kw while let
+            sn macro_rules
+            sn pd
+            sn ppd
+        "#]],
+    );
+}
+
+#[test]
 fn escaped_label() {
     check(
         r#"
@@ -2126,3 +2176,70 @@
         "#]],
     );
 }
+
+#[test]
+fn call_parens_with_newline() {
+    check_edit(
+        "foo",
+        r#"
+fn foo(v: i32) {}
+
+fn bar() {
+    foo$0
+    ()
+}
+    "#,
+        r#"
+fn foo(v: i32) {}
+
+fn bar() {
+    foo(${1:v});$0
+    ()
+}
+    "#,
+    );
+    check_edit(
+        "foo",
+        r#"
+struct Foo;
+impl Foo {
+    fn foo(&self, v: i32) {}
+}
+
+fn bar() {
+    Foo.foo$0
+    ()
+}
+    "#,
+        r#"
+struct Foo;
+impl Foo {
+    fn foo(&self, v: i32) {}
+}
+
+fn bar() {
+    Foo.foo(${1:v});$0
+    ()
+}
+    "#,
+    );
+}
+
+#[test]
+fn dbg_too_many_asterisks() {
+    check_edit(
+        "dbg",
+        r#"
+fn main() {
+    let x = &42;
+    let y = *x.$0;
+}
+    "#,
+        r#"
+fn main() {
+    let x = &42;
+    let y = dbg!(*x);
+}
+    "#,
+    );
+}
diff --git a/crates/ide-completion/src/tests/item.rs b/crates/ide-completion/src/tests/item.rs
index 5568903..ed87b33 100644
--- a/crates/ide-completion/src/tests/item.rs
+++ b/crates/ide-completion/src/tests/item.rs
@@ -4,7 +4,7 @@
 //! in [crate::completions::mod_].
 use expect_test::expect;
 
-use crate::tests::{check_edit, check_with_base_items};
+use crate::tests::{check, check_edit, check_with_base_items};
 
 #[test]
 fn target_type_or_trait_in_impl_block() {
@@ -308,3 +308,39 @@
         "#]],
     );
 }
+
+#[test]
+fn expression_in_item_macro() {
+    check(
+        r#"
+fn foo() -> u8 { 0 }
+
+macro_rules! foo {
+    ($expr:expr) => {
+        const BAR: u8 = $expr;
+    };
+}
+
+foo!(f$0);
+    "#,
+        expect![[r#"
+            ct BAR                   u8
+            fn foo()         fn() -> u8
+            ma foo!(…) macro_rules! foo
+            bt u32                  u32
+            kw const
+            kw crate::
+            kw false
+            kw for
+            kw if
+            kw if let
+            kw loop
+            kw match
+            kw self::
+            kw true
+            kw unsafe
+            kw while
+            kw while let
+        "#]],
+    );
+}
diff --git a/crates/ide-db/src/defs.rs b/crates/ide-db/src/defs.rs
index bf4f541..d5db1c4 100644
--- a/crates/ide-db/src/defs.rs
+++ b/crates/ide-db/src/defs.rs
@@ -6,7 +6,7 @@
 // FIXME: this badly needs rename/rewrite (matklad, 2020-02-06).
 
 use crate::RootDatabase;
-use crate::documentation::{Documentation, HasDocs};
+use crate::documentation::{DocsRangeMap, Documentation, HasDocs};
 use crate::famous_defs::FamousDefs;
 use arrayvec::ArrayVec;
 use either::Either;
@@ -21,7 +21,7 @@
 use span::Edition;
 use stdx::{format_to, impl_from};
 use syntax::{
-    SyntaxKind, SyntaxNode, SyntaxToken,
+    SyntaxKind, SyntaxNode, SyntaxToken, TextSize,
     ast::{self, AstNode},
     match_ast,
 };
@@ -210,29 +210,40 @@
         famous_defs: Option<&FamousDefs<'_, '_>>,
         display_target: DisplayTarget,
     ) -> Option<Documentation> {
+        self.docs_with_rangemap(db, famous_defs, display_target).map(|(docs, _)| docs)
+    }
+
+    pub fn docs_with_rangemap(
+        &self,
+        db: &RootDatabase,
+        famous_defs: Option<&FamousDefs<'_, '_>>,
+        display_target: DisplayTarget,
+    ) -> Option<(Documentation, Option<DocsRangeMap>)> {
         let docs = match self {
-            Definition::Macro(it) => it.docs(db),
-            Definition::Field(it) => it.docs(db),
-            Definition::Module(it) => it.docs(db),
-            Definition::Crate(it) => it.docs(db),
-            Definition::Function(it) => it.docs(db),
-            Definition::Adt(it) => it.docs(db),
-            Definition::Variant(it) => it.docs(db),
-            Definition::Const(it) => it.docs(db),
-            Definition::Static(it) => it.docs(db),
-            Definition::Trait(it) => it.docs(db),
-            Definition::TraitAlias(it) => it.docs(db),
+            Definition::Macro(it) => it.docs_with_rangemap(db),
+            Definition::Field(it) => it.docs_with_rangemap(db),
+            Definition::Module(it) => it.docs_with_rangemap(db),
+            Definition::Crate(it) => it.docs_with_rangemap(db),
+            Definition::Function(it) => it.docs_with_rangemap(db),
+            Definition::Adt(it) => it.docs_with_rangemap(db),
+            Definition::Variant(it) => it.docs_with_rangemap(db),
+            Definition::Const(it) => it.docs_with_rangemap(db),
+            Definition::Static(it) => it.docs_with_rangemap(db),
+            Definition::Trait(it) => it.docs_with_rangemap(db),
+            Definition::TraitAlias(it) => it.docs_with_rangemap(db),
             Definition::TypeAlias(it) => {
-                it.docs(db).or_else(|| {
+                it.docs_with_rangemap(db).or_else(|| {
                     // docs are missing, try to fall back to the docs of the aliased item.
                     let adt = it.ty(db).as_adt()?;
-                    let docs = adt.docs(db)?;
-                    let docs = format!(
-                        "*This is the documentation for* `{}`\n\n{}",
-                        adt.display(db, display_target),
-                        docs.as_str()
+                    let (docs, range_map) = adt.docs_with_rangemap(db)?;
+                    let header_docs = format!(
+                        "*This is the documentation for* `{}`\n\n",
+                        adt.display(db, display_target)
                     );
-                    Some(Documentation::new(docs))
+                    let offset = TextSize::new(header_docs.len() as u32);
+                    let range_map = range_map.shift_docstring_line_range(offset);
+                    let docs = header_docs + docs.as_str();
+                    Some((Documentation::new(docs), range_map))
                 })
             }
             Definition::BuiltinType(it) => {
@@ -241,17 +252,17 @@
                     let primitive_mod =
                         format!("prim_{}", it.name().display(fd.0.db, display_target.edition));
                     let doc_owner = find_std_module(fd, &primitive_mod, display_target.edition)?;
-                    doc_owner.docs(fd.0.db)
+                    doc_owner.docs_with_rangemap(fd.0.db)
                 })
             }
             Definition::BuiltinLifetime(StaticLifetime) => None,
             Definition::Local(_) => None,
             Definition::SelfType(impl_def) => {
-                impl_def.self_ty(db).as_adt().map(|adt| adt.docs(db))?
+                impl_def.self_ty(db).as_adt().map(|adt| adt.docs_with_rangemap(db))?
             }
             Definition::GenericParam(_) => None,
             Definition::Label(_) => None,
-            Definition::ExternCrateDecl(it) => it.docs(db),
+            Definition::ExternCrateDecl(it) => it.docs_with_rangemap(db),
 
             Definition::BuiltinAttr(it) => {
                 let name = it.name(db);
@@ -276,7 +287,8 @@
                         name_value_str
                     );
                 }
-                Some(Documentation::new(docs.replace('*', "\\*")))
+
+                return Some((Documentation::new(docs.replace('*', "\\*")), None));
             }
             Definition::ToolModule(_) => None,
             Definition::DeriveHelper(_) => None,
@@ -291,8 +303,9 @@
             let trait_ = assoc.implemented_trait(db)?;
             let name = Some(assoc.name(db)?);
             let item = trait_.items(db).into_iter().find(|it| it.name(db) == name)?;
-            item.docs(db)
+            item.docs_with_rangemap(db)
         })
+        .map(|(docs, range_map)| (docs, Some(range_map)))
     }
 
     pub fn label(&self, db: &RootDatabase, display_target: DisplayTarget) -> String {
diff --git a/crates/ide-db/src/documentation.rs b/crates/ide-db/src/documentation.rs
index ef2c839..30c355f 100644
--- a/crates/ide-db/src/documentation.rs
+++ b/crates/ide-db/src/documentation.rs
@@ -34,11 +34,13 @@
 
 pub trait HasDocs: HasAttrs {
     fn docs(self, db: &dyn HirDatabase) -> Option<Documentation>;
+    fn docs_with_rangemap(self, db: &dyn HirDatabase) -> Option<(Documentation, DocsRangeMap)>;
     fn resolve_doc_path(
         self,
         db: &dyn HirDatabase,
         link: &str,
         ns: Option<hir::Namespace>,
+        is_inner_doc: bool,
     ) -> Option<hir::DocLinkDef>;
 }
 /// A struct to map text ranges from [`Documentation`] back to TextRanges in the syntax tree.
@@ -53,7 +55,7 @@
 
 impl DocsRangeMap {
     /// Maps a [`TextRange`] relative to the documentation string back to its AST range
-    pub fn map(&self, range: TextRange) -> Option<InFile<TextRange>> {
+    pub fn map(&self, range: TextRange) -> Option<(InFile<TextRange>, AttrId)> {
         let found = self.mapping.binary_search_by(|(probe, ..)| probe.ordering(range)).ok()?;
         let (line_docs_range, idx, original_line_src_range) = self.mapping[found];
         if !line_docs_range.contains_range(range) {
@@ -71,7 +73,7 @@
                     text_range.end() + original_line_src_range.start() + relative_range.start(),
                     string.syntax().text_range().len().min(range.len()),
                 );
-                Some(InFile { file_id, value: range })
+                Some((InFile { file_id, value: range }, idx))
             }
             Either::Right(comment) => {
                 let text_range = comment.syntax().text_range();
@@ -82,10 +84,22 @@
                         + relative_range.start(),
                     text_range.len().min(range.len()),
                 );
-                Some(InFile { file_id, value: range })
+                Some((InFile { file_id, value: range }, idx))
             }
         }
     }
+
+    pub fn shift_docstring_line_range(self, offset: TextSize) -> DocsRangeMap {
+        let mapping = self
+            .mapping
+            .into_iter()
+            .map(|(buf_offset, id, base_offset)| {
+                let buf_offset = buf_offset.checked_add(offset).unwrap();
+                (buf_offset, id, base_offset)
+            })
+            .collect_vec();
+        DocsRangeMap { source_map: self.source_map, mapping }
+    }
 }
 
 pub fn docs_with_rangemap(
@@ -161,13 +175,20 @@
             fn docs(self, db: &dyn HirDatabase) -> Option<Documentation> {
                 docs_from_attrs(&self.attrs(db)).map(Documentation)
             }
+            fn docs_with_rangemap(
+                self,
+                db: &dyn HirDatabase,
+            ) -> Option<(Documentation, DocsRangeMap)> {
+                docs_with_rangemap(db, &self.attrs(db))
+            }
             fn resolve_doc_path(
                 self,
                 db: &dyn HirDatabase,
                 link: &str,
-                ns: Option<hir::Namespace>
+                ns: Option<hir::Namespace>,
+                is_inner_doc: bool,
             ) -> Option<hir::DocLinkDef> {
-                resolve_doc_path_on(db, self, link, ns)
+                resolve_doc_path_on(db, self, link, ns, is_inner_doc)
             }
         }
     )*};
@@ -184,13 +205,21 @@
             fn docs(self, db: &dyn HirDatabase) -> Option<Documentation> {
                 hir::$enum::$variant(self).docs(db)
             }
+
+            fn docs_with_rangemap(
+                self,
+                db: &dyn HirDatabase,
+            ) -> Option<(Documentation, DocsRangeMap)> {
+                hir::$enum::$variant(self).docs_with_rangemap(db)
+            }
             fn resolve_doc_path(
                 self,
                 db: &dyn HirDatabase,
                 link: &str,
-                ns: Option<hir::Namespace>
+                ns: Option<hir::Namespace>,
+                is_inner_doc: bool,
             ) -> Option<hir::DocLinkDef> {
-                hir::$enum::$variant(self).resolve_doc_path(db, link, ns)
+                hir::$enum::$variant(self).resolve_doc_path(db, link, ns, is_inner_doc)
             }
         }
     )*};
@@ -207,16 +236,25 @@
         }
     }
 
+    fn docs_with_rangemap(self, db: &dyn HirDatabase) -> Option<(Documentation, DocsRangeMap)> {
+        match self {
+            hir::AssocItem::Function(it) => it.docs_with_rangemap(db),
+            hir::AssocItem::Const(it) => it.docs_with_rangemap(db),
+            hir::AssocItem::TypeAlias(it) => it.docs_with_rangemap(db),
+        }
+    }
+
     fn resolve_doc_path(
         self,
         db: &dyn HirDatabase,
         link: &str,
         ns: Option<hir::Namespace>,
+        is_inner_doc: bool,
     ) -> Option<hir::DocLinkDef> {
         match self {
-            hir::AssocItem::Function(it) => it.resolve_doc_path(db, link, ns),
-            hir::AssocItem::Const(it) => it.resolve_doc_path(db, link, ns),
-            hir::AssocItem::TypeAlias(it) => it.resolve_doc_path(db, link, ns),
+            hir::AssocItem::Function(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+            hir::AssocItem::Const(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+            hir::AssocItem::TypeAlias(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
         }
     }
 }
@@ -238,13 +276,36 @@
         }
         .map(Documentation::new)
     }
+
+    fn docs_with_rangemap(self, db: &dyn HirDatabase) -> Option<(Documentation, DocsRangeMap)> {
+        let crate_docs = docs_with_rangemap(db, &self.resolved_crate(db)?.root_module().attrs(db));
+        let decl_docs = docs_with_rangemap(db, &self.attrs(db));
+        match (decl_docs, crate_docs) {
+            (None, None) => None,
+            (Some(decl_docs), None) => Some(decl_docs),
+            (None, Some(crate_docs)) => Some(crate_docs),
+            (
+                Some((Documentation(mut decl_docs), mut decl_range_map)),
+                Some((Documentation(crate_docs), crate_range_map)),
+            ) => {
+                decl_docs.push('\n');
+                decl_docs.push('\n');
+                let offset = TextSize::new(decl_docs.len() as u32);
+                decl_docs += &crate_docs;
+                let crate_range_map = crate_range_map.shift_docstring_line_range(offset);
+                decl_range_map.mapping.extend(crate_range_map.mapping);
+                Some((Documentation(decl_docs), decl_range_map))
+            }
+        }
+    }
     fn resolve_doc_path(
         self,
         db: &dyn HirDatabase,
         link: &str,
         ns: Option<hir::Namespace>,
+        is_inner_doc: bool,
     ) -> Option<hir::DocLinkDef> {
-        resolve_doc_path_on(db, self, link, ns)
+        resolve_doc_path_on(db, self, link, ns, is_inner_doc)
     }
 }
 
diff --git a/crates/ide-db/src/lib.rs b/crates/ide-db/src/lib.rs
index 63cc7cd..c94be7e 100644
--- a/crates/ide-db/src/lib.rs
+++ b/crates/ide-db/src/lib.rs
@@ -92,9 +92,7 @@
 impl std::panic::RefUnwindSafe for RootDatabase {}
 
 #[salsa_macros::db]
-impl salsa::Database for RootDatabase {
-    fn salsa_event(&self, _event: &dyn Fn() -> salsa::Event) {}
-}
+impl salsa::Database for RootDatabase {}
 
 impl Drop for RootDatabase {
     fn drop(&mut self) {
diff --git a/crates/ide-db/src/prime_caches.rs b/crates/ide-db/src/prime_caches.rs
index cbe3140..5356614 100644
--- a/crates/ide-db/src/prime_caches.rs
+++ b/crates/ide-db/src/prime_caches.rs
@@ -2,12 +2,10 @@
 //! sometimes is counter productive when, for example, the first goto definition
 //! request takes longer to compute. This module implements prepopulation of
 //! various caches, it's not really advanced at the moment.
-mod topologic_sort;
-
-use std::time::Duration;
+use std::panic::AssertUnwindSafe;
 
 use hir::{Symbol, db::DefDatabase};
-use itertools::Itertools;
+use rustc_hash::FxHashMap;
 use salsa::{Cancelled, Database};
 
 use crate::{
@@ -35,59 +33,114 @@
 ) {
     let _p = tracing::info_span!("parallel_prime_caches").entered();
 
-    let mut crates_to_prime = {
-        // FIXME: We already have the crate list topologically sorted (but without the things
-        // `TopologicalSortIter` gives us). Maybe there is a way to avoid using it and rip it out
-        // of the codebase?
-        let mut builder = topologic_sort::TopologicalSortIter::builder();
-
-        for &crate_id in db.all_crates().iter() {
-            builder.add(crate_id, crate_id.data(db).dependencies.iter().map(|d| d.crate_id));
-        }
-
-        builder.build()
-    };
-
     enum ParallelPrimeCacheWorkerProgress {
-        BeginCrate { crate_id: Crate, crate_name: Symbol },
-        EndCrate { crate_id: Crate },
+        BeginCrateDefMap { crate_id: Crate, crate_name: Symbol },
+        EndCrateDefMap { crate_id: Crate },
+        EndCrateImportMap,
+        EndModuleSymbols,
         Cancelled(Cancelled),
     }
 
-    // We split off def map computation from other work,
-    // as the def map is the relevant one. Once the defmaps are computed
-    // the project is ready to go, the other indices are just nice to have for some IDE features.
-    #[derive(PartialOrd, Ord, PartialEq, Eq, Copy, Clone)]
-    enum PrimingPhase {
-        DefMap,
-        ImportMap,
-        CrateSymbols,
-    }
+    // The setup here is a bit complicated. We try to make best use of compute resources.
+    // The idea is that if we have a def map available to compute, we should do that first.
+    // This is because def map is a dependency of both import map and symbols. So if we have
+    // e.g. a def map and a symbols, if we compute the def map we can, after it completes,
+    // compute the def maps of dependencies, the existing symbols and the symbols of the
+    // new crate, all in parallel. But if we compute the symbols, after that we will only
+    // have the def map to compute, and the rest of the CPU cores will rest, which is not
+    // good.
+    // However, it's better to compute symbols/import map than to compute a def map that
+    // isn't ready yet, because one of its dependencies hasn't yet completed its def map.
+    // Such def map will just block on the dependency, which is just wasted time. So better
+    // to compute the symbols/import map of an already computed def map in that time.
 
-    let (work_sender, progress_receiver) = {
-        let (progress_sender, progress_receiver) = crossbeam_channel::unbounded();
-        let (work_sender, work_receiver) = crossbeam_channel::unbounded();
-        let prime_caches_worker = move |db: RootDatabase| {
-            while let Ok((crate_id, crate_name, kind)) = work_receiver.recv() {
-                progress_sender
-                    .send(ParallelPrimeCacheWorkerProgress::BeginCrate { crate_id, crate_name })?;
-
-                let cancelled = Cancelled::catch(|| match kind {
-                    PrimingPhase::DefMap => _ = db.crate_def_map(crate_id),
-                    PrimingPhase::ImportMap => _ = db.import_map(crate_id),
-                    PrimingPhase::CrateSymbols => _ = db.crate_symbols(crate_id.into()),
-                });
-
-                match cancelled {
-                    Ok(()) => progress_sender
-                        .send(ParallelPrimeCacheWorkerProgress::EndCrate { crate_id })?,
-                    Err(cancelled) => progress_sender
-                        .send(ParallelPrimeCacheWorkerProgress::Cancelled(cancelled))?,
-                }
+    let (reverse_deps, mut to_be_done_deps) = {
+        let all_crates = db.all_crates();
+        let to_be_done_deps = all_crates
+            .iter()
+            .map(|&krate| (krate, krate.data(db).dependencies.len() as u32))
+            .collect::<FxHashMap<_, _>>();
+        let mut reverse_deps =
+            all_crates.iter().map(|&krate| (krate, Vec::new())).collect::<FxHashMap<_, _>>();
+        for &krate in &*all_crates {
+            for dep in &krate.data(db).dependencies {
+                reverse_deps.get_mut(&dep.crate_id).unwrap().push(krate);
             }
+        }
+        (reverse_deps, to_be_done_deps)
+    };
 
-            Ok::<_, crossbeam_channel::SendError<_>>(())
-        };
+    let (def_map_work_sender, import_map_work_sender, symbols_work_sender, progress_receiver) = {
+        let (progress_sender, progress_receiver) = crossbeam_channel::unbounded();
+        let (def_map_work_sender, def_map_work_receiver) = crossbeam_channel::unbounded();
+        let (import_map_work_sender, import_map_work_receiver) = crossbeam_channel::unbounded();
+        let (symbols_work_sender, symbols_work_receiver) = crossbeam_channel::unbounded();
+        let prime_caches_worker =
+            move |db: RootDatabase| {
+                let handle_def_map = |crate_id, crate_name| {
+                    progress_sender.send(ParallelPrimeCacheWorkerProgress::BeginCrateDefMap {
+                        crate_id,
+                        crate_name,
+                    })?;
+
+                    let cancelled = Cancelled::catch(|| _ = hir::crate_def_map(&db, crate_id));
+
+                    match cancelled {
+                        Ok(()) => progress_sender
+                            .send(ParallelPrimeCacheWorkerProgress::EndCrateDefMap { crate_id })?,
+                        Err(cancelled) => progress_sender
+                            .send(ParallelPrimeCacheWorkerProgress::Cancelled(cancelled))?,
+                    }
+
+                    Ok::<_, crossbeam_channel::SendError<_>>(())
+                };
+                let handle_import_map = |crate_id| {
+                    let cancelled = Cancelled::catch(|| _ = db.import_map(crate_id));
+
+                    match cancelled {
+                        Ok(()) => progress_sender
+                            .send(ParallelPrimeCacheWorkerProgress::EndCrateImportMap)?,
+                        Err(cancelled) => progress_sender
+                            .send(ParallelPrimeCacheWorkerProgress::Cancelled(cancelled))?,
+                    }
+
+                    Ok::<_, crossbeam_channel::SendError<_>>(())
+                };
+                let handle_symbols = |module| {
+                    let cancelled =
+                        Cancelled::catch(AssertUnwindSafe(|| _ = db.module_symbols(module)));
+
+                    match cancelled {
+                        Ok(()) => progress_sender
+                            .send(ParallelPrimeCacheWorkerProgress::EndModuleSymbols)?,
+                        Err(cancelled) => progress_sender
+                            .send(ParallelPrimeCacheWorkerProgress::Cancelled(cancelled))?,
+                    }
+
+                    Ok::<_, crossbeam_channel::SendError<_>>(())
+                };
+
+                loop {
+                    db.unwind_if_revision_cancelled();
+
+                    // Biased because we want to prefer def maps.
+                    crossbeam_channel::select_biased! {
+                        recv(def_map_work_receiver) -> work => {
+                            let Ok((crate_id, crate_name)) = work else { break };
+                            handle_def_map(crate_id, crate_name)?;
+                        }
+                        recv(import_map_work_receiver) -> work => {
+                            let Ok(crate_id) = work else { break };
+                            handle_import_map(crate_id)?;
+                        }
+                        recv(symbols_work_receiver) -> work => {
+                            let Ok(module) = work else { break };
+                            handle_symbols(module)?;
+                        }
+                    }
+                }
+                Ok::<_, crossbeam_channel::SendError<_>>(())
+            };
 
         for id in 0..num_worker_threads {
             stdx::thread::Builder::new(
@@ -103,138 +156,121 @@
             .expect("failed to spawn thread");
         }
 
-        (work_sender, progress_receiver)
+        (def_map_work_sender, import_map_work_sender, symbols_work_sender, progress_receiver)
     };
 
-    let crates_total = crates_to_prime.pending();
-    let mut crates_done = 0;
+    let crate_def_maps_total = db.all_crates().len();
+    let mut crate_def_maps_done = 0;
+    let (mut crate_import_maps_total, mut crate_import_maps_done) = (0usize, 0usize);
+    let (mut module_symbols_total, mut module_symbols_done) = (0usize, 0usize);
 
     // an index map is used to preserve ordering so we can sort the progress report in order of
     // "longest crate to index" first
     let mut crates_currently_indexing =
         FxIndexMap::with_capacity_and_hasher(num_worker_threads, Default::default());
 
-    let mut additional_phases = vec![];
-
-    while crates_done < crates_total {
-        db.unwind_if_revision_cancelled();
-
-        for krate in &mut crates_to_prime {
-            let name = krate.extra_data(db).display_name.as_deref().cloned().unwrap_or_else(|| {
-                Symbol::integer(salsa::plumbing::AsId::as_id(&krate).as_u32() as usize)
-            });
-            let origin = &krate.data(db).origin;
-            if origin.is_lang() {
-                additional_phases.push((krate, name.clone(), PrimingPhase::ImportMap));
-            } else if origin.is_local() {
-                // Compute the symbol search index.
-                // This primes the cache for `ide_db::symbol_index::world_symbols()`.
-                //
-                // We do this for workspace crates only (members of local_roots), because doing it
-                // for all dependencies could be *very* unnecessarily slow in a large project.
-                //
-                // FIXME: We should do it unconditionally if the configuration is set to default to
-                // searching dependencies (rust-analyzer.workspace.symbol.search.scope), but we
-                // would need to pipe that configuration information down here.
-                additional_phases.push((krate, name.clone(), PrimingPhase::CrateSymbols));
-            }
-
-            work_sender.send((krate, name, PrimingPhase::DefMap)).ok();
+    for (&krate, &to_be_done_deps) in &to_be_done_deps {
+        if to_be_done_deps != 0 {
+            continue;
         }
 
-        // recv_timeout is somewhat a hack, we need a way to from this thread check to see if the current salsa revision
-        // is cancelled on a regular basis. workers will only exit if they are processing a task that is cancelled, or
-        // if this thread exits, and closes the work channel.
-        let worker_progress = match progress_receiver.recv_timeout(Duration::from_millis(10)) {
-            Ok(p) => p,
-            Err(crossbeam_channel::RecvTimeoutError::Timeout) => {
-                continue;
-            }
-            Err(crossbeam_channel::RecvTimeoutError::Disconnected) => {
-                // all our workers have exited, mark us as finished and exit
-                cb(ParallelPrimeCachesProgress {
-                    crates_currently_indexing: vec![],
-                    crates_done,
-                    crates_total: crates_done,
-                    work_type: "Indexing",
-                });
-                return;
-            }
-        };
-        match worker_progress {
-            ParallelPrimeCacheWorkerProgress::BeginCrate { crate_id, crate_name } => {
-                crates_currently_indexing.insert(crate_id, crate_name);
-            }
-            ParallelPrimeCacheWorkerProgress::EndCrate { crate_id } => {
-                crates_currently_indexing.swap_remove(&crate_id);
-                crates_to_prime.mark_done(crate_id);
-                crates_done += 1;
-            }
-            ParallelPrimeCacheWorkerProgress::Cancelled(cancelled) => {
-                // Cancelled::throw should probably be public
-                std::panic::resume_unwind(Box::new(cancelled));
-            }
-        };
+        let name = crate_name(db, krate);
+        def_map_work_sender.send((krate, name)).ok();
+    }
+
+    while crate_def_maps_done < crate_def_maps_total
+        || crate_import_maps_done < crate_import_maps_total
+        || module_symbols_done < module_symbols_total
+    {
+        db.unwind_if_revision_cancelled();
 
         let progress = ParallelPrimeCachesProgress {
             crates_currently_indexing: crates_currently_indexing.values().cloned().collect(),
-            crates_done,
-            crates_total,
+            crates_done: crate_def_maps_done,
+            crates_total: crate_def_maps_total,
             work_type: "Indexing",
         };
 
         cb(progress);
-    }
 
-    let mut crates_done = 0;
-    let crates_total = additional_phases.len();
-    for w in additional_phases.into_iter().sorted_by_key(|&(_, _, phase)| phase) {
-        work_sender.send(w).ok();
-    }
-
-    while crates_done < crates_total {
-        db.unwind_if_revision_cancelled();
-
-        // recv_timeout is somewhat a hack, we need a way to from this thread check to see if the current salsa revision
-        // is cancelled on a regular basis. workers will only exit if they are processing a task that is cancelled, or
-        // if this thread exits, and closes the work channel.
-        let worker_progress = match progress_receiver.recv_timeout(Duration::from_millis(10)) {
+        // Biased to prefer progress updates (and because it's faster).
+        let progress = match progress_receiver.recv() {
             Ok(p) => p,
-            Err(crossbeam_channel::RecvTimeoutError::Timeout) => {
-                continue;
-            }
-            Err(crossbeam_channel::RecvTimeoutError::Disconnected) => {
+            Err(crossbeam_channel::RecvError) => {
                 // all our workers have exited, mark us as finished and exit
                 cb(ParallelPrimeCachesProgress {
                     crates_currently_indexing: vec![],
-                    crates_done,
-                    crates_total: crates_done,
-                    work_type: "Populating symbols",
+                    crates_done: crate_def_maps_done,
+                    crates_total: crate_def_maps_done,
+                    work_type: "Done",
                 });
                 return;
             }
         };
-        match worker_progress {
-            ParallelPrimeCacheWorkerProgress::BeginCrate { crate_id, crate_name } => {
+
+        match progress {
+            ParallelPrimeCacheWorkerProgress::BeginCrateDefMap { crate_id, crate_name } => {
                 crates_currently_indexing.insert(crate_id, crate_name);
             }
-            ParallelPrimeCacheWorkerProgress::EndCrate { crate_id } => {
+            ParallelPrimeCacheWorkerProgress::EndCrateDefMap { crate_id } => {
                 crates_currently_indexing.swap_remove(&crate_id);
-                crates_done += 1;
+                crate_def_maps_done += 1;
+
+                // Fire ready dependencies.
+                for &dep in &reverse_deps[&crate_id] {
+                    let to_be_done = to_be_done_deps.get_mut(&dep).unwrap();
+                    *to_be_done -= 1;
+                    if *to_be_done == 0 {
+                        let dep_name = crate_name(db, dep);
+                        def_map_work_sender.send((dep, dep_name)).ok();
+                    }
+                }
+
+                if crate_def_maps_done == crate_def_maps_total {
+                    cb(ParallelPrimeCachesProgress {
+                        crates_currently_indexing: vec![],
+                        crates_done: crate_def_maps_done,
+                        crates_total: crate_def_maps_done,
+                        work_type: "Collecting Symbols",
+                    });
+                }
+
+                let origin = &crate_id.data(db).origin;
+                if origin.is_lang() {
+                    crate_import_maps_total += 1;
+                    import_map_work_sender.send(crate_id).ok();
+                } else if origin.is_local() {
+                    // Compute the symbol search index.
+                    // This primes the cache for `ide_db::symbol_index::world_symbols()`.
+                    //
+                    // We do this for workspace crates only (members of local_roots), because doing it
+                    // for all dependencies could be *very* unnecessarily slow in a large project.
+                    //
+                    // FIXME: We should do it unconditionally if the configuration is set to default to
+                    // searching dependencies (rust-analyzer.workspace.symbol.search.scope), but we
+                    // would need to pipe that configuration information down here.
+                    let modules = hir::Crate::from(crate_id).modules(db);
+                    module_symbols_total += modules.len();
+                    for module in modules {
+                        symbols_work_sender.send(module).ok();
+                    }
+                }
             }
+            ParallelPrimeCacheWorkerProgress::EndCrateImportMap => crate_import_maps_done += 1,
+            ParallelPrimeCacheWorkerProgress::EndModuleSymbols => module_symbols_done += 1,
             ParallelPrimeCacheWorkerProgress::Cancelled(cancelled) => {
                 // Cancelled::throw should probably be public
                 std::panic::resume_unwind(Box::new(cancelled));
             }
-        };
-
-        let progress = ParallelPrimeCachesProgress {
-            crates_currently_indexing: crates_currently_indexing.values().cloned().collect(),
-            crates_done,
-            crates_total,
-            work_type: "Populating symbols",
-        };
-
-        cb(progress);
+        }
     }
 }
+
+fn crate_name(db: &RootDatabase, krate: Crate) -> Symbol {
+    krate
+        .extra_data(db)
+        .display_name
+        .as_deref()
+        .cloned()
+        .unwrap_or_else(|| Symbol::integer(salsa::plumbing::AsId::as_id(&krate).as_u32() as usize))
+}
diff --git a/crates/ide-db/src/prime_caches/topologic_sort.rs b/crates/ide-db/src/prime_caches/topologic_sort.rs
deleted file mode 100644
index c8a0386..0000000
--- a/crates/ide-db/src/prime_caches/topologic_sort.rs
+++ /dev/null
@@ -1,104 +0,0 @@
-//! helper data structure to schedule work for parallel prime caches.
-use std::{collections::VecDeque, hash::Hash};
-
-use crate::FxHashMap;
-
-pub(crate) struct TopologicSortIterBuilder<T> {
-    nodes: FxHashMap<T, Entry<T>>,
-}
-
-// this implementation has different bounds on T than would be implied by #[derive(Default)]
-impl<T> Default for TopologicSortIterBuilder<T>
-where
-    T: Copy + Eq + PartialEq + Hash,
-{
-    fn default() -> Self {
-        Self { nodes: Default::default() }
-    }
-}
-
-impl<T> TopologicSortIterBuilder<T>
-where
-    T: Copy + Eq + PartialEq + Hash,
-{
-    fn get_or_create_entry(&mut self, item: T) -> &mut Entry<T> {
-        self.nodes.entry(item).or_default()
-    }
-
-    pub(crate) fn add(&mut self, item: T, predecessors: impl IntoIterator<Item = T>) {
-        let mut num_predecessors = 0;
-
-        for predecessor in predecessors.into_iter() {
-            self.get_or_create_entry(predecessor).successors.push(item);
-            num_predecessors += 1;
-        }
-
-        let entry = self.get_or_create_entry(item);
-        entry.num_predecessors += num_predecessors;
-    }
-
-    pub(crate) fn build(self) -> TopologicalSortIter<T> {
-        let ready = self
-            .nodes
-            .iter()
-            .filter_map(
-                |(item, entry)| if entry.num_predecessors == 0 { Some(*item) } else { None },
-            )
-            .collect();
-
-        TopologicalSortIter { nodes: self.nodes, ready }
-    }
-}
-
-pub(crate) struct TopologicalSortIter<T> {
-    ready: VecDeque<T>,
-    nodes: FxHashMap<T, Entry<T>>,
-}
-
-impl<T> TopologicalSortIter<T>
-where
-    T: Copy + Eq + PartialEq + Hash,
-{
-    pub(crate) fn builder() -> TopologicSortIterBuilder<T> {
-        TopologicSortIterBuilder::default()
-    }
-
-    pub(crate) fn pending(&self) -> usize {
-        self.nodes.len()
-    }
-
-    pub(crate) fn mark_done(&mut self, item: T) {
-        let entry = self.nodes.remove(&item).expect("invariant: unknown item marked as done");
-
-        for successor in entry.successors {
-            let succ_entry = self
-                .nodes
-                .get_mut(&successor)
-                .expect("invariant: unknown successor referenced by entry");
-
-            succ_entry.num_predecessors -= 1;
-            if succ_entry.num_predecessors == 0 {
-                self.ready.push_back(successor);
-            }
-        }
-    }
-}
-
-impl<T> Iterator for TopologicalSortIter<T> {
-    type Item = T;
-
-    fn next(&mut self) -> Option<Self::Item> {
-        self.ready.pop_front()
-    }
-}
-
-struct Entry<T> {
-    successors: Vec<T>,
-    num_predecessors: usize,
-}
-
-impl<T> Default for Entry<T> {
-    fn default() -> Self {
-        Self { successors: Default::default(), num_predecessors: 0 }
-    }
-}
diff --git a/crates/ide-db/src/rename.rs b/crates/ide-db/src/rename.rs
index b8119e1..fa2a46a 100644
--- a/crates/ide-db/src/rename.rs
+++ b/crates/ide-db/src/rename.rs
@@ -390,11 +390,6 @@
     let mut edited_ranges = Vec::new();
     for &FileReference { range, ref name, .. } in references {
         let name_range = name.text_range();
-        if name_range.len() != range.len() {
-            // This usage comes from a different token kind that was downmapped to a NameLike in a macro
-            // Renaming this will most likely break things syntax-wise
-            continue;
-        }
         let has_emitted_edit = match name {
             // if the ranges differ then the node is inside a macro call, we can't really attempt
             // to make special rewrites like shorthand syntax and such, so just rename the node in
diff --git a/crates/ide-db/src/search.rs b/crates/ide-db/src/search.rs
index 30be5bc..d4ab759 100644
--- a/crates/ide-db/src/search.rs
+++ b/crates/ide-db/src/search.rs
@@ -524,6 +524,7 @@
     fn find_nodes<'b>(
         sema: &'b Semantics<'_, RootDatabase>,
         name: &str,
+        file_id: EditionedFileId,
         node: &syntax::SyntaxNode,
         offset: TextSize,
     ) -> impl Iterator<Item = SyntaxNode> + 'b {
@@ -534,7 +535,7 @@
             })
             .into_iter()
             .flat_map(move |token| {
-                if sema.might_be_inside_macro_call(&token) {
+                if sema.is_inside_macro_call(InFile::new(file_id.into(), &token)) {
                     sema.descend_into_macros_exact(token)
                 } else {
                     <_>::from([token])
@@ -654,11 +655,14 @@
                     let tree = LazyCell::new(move || sema.parse(file_id).syntax().clone());
 
                     for offset in FindUsages::match_indices(&file_text, &finder, search_range) {
-                        let usages =
-                            FindUsages::find_nodes(sema, &current_to_process, &tree, offset)
-                                .filter(|it| {
-                                    matches!(it.kind(), SyntaxKind::NAME | SyntaxKind::NAME_REF)
-                                });
+                        let usages = FindUsages::find_nodes(
+                            sema,
+                            &current_to_process,
+                            file_id,
+                            &tree,
+                            offset,
+                        )
+                        .filter(|it| matches!(it.kind(), SyntaxKind::NAME | SyntaxKind::NAME_REF));
                         for usage in usages {
                             if let Some(alias) = usage.parent().and_then(|it| {
                                 let path = ast::PathSegment::cast(it)?.parent_path();
@@ -813,7 +817,7 @@
                 let tree = LazyCell::new(move || this.sema.parse(file_id).syntax().clone());
 
                 for offset in FindUsages::match_indices(&file_text, finder, search_range) {
-                    let usages = FindUsages::find_nodes(this.sema, name, &tree, offset)
+                    let usages = FindUsages::find_nodes(this.sema, name, file_id, &tree, offset)
                         .filter_map(ast::NameRef::cast);
                     for usage in usages {
                         let found_usage = usage
@@ -970,8 +974,8 @@
                     return;
                 }
 
-                for name in
-                    Self::find_nodes(sema, name, &tree, offset).filter_map(ast::NameLike::cast)
+                for name in Self::find_nodes(sema, name, file_id, &tree, offset)
+                    .filter_map(ast::NameLike::cast)
                 {
                     if match name {
                         ast::NameLike::NameRef(name_ref) => self.found_name_ref(&name_ref, sink),
@@ -985,8 +989,8 @@
             // Search for occurrences of the `Self` referring to our type
             if let Some((self_ty, finder)) = &include_self_kw_refs {
                 for offset in Self::match_indices(&text, finder, search_range) {
-                    for name_ref in
-                        Self::find_nodes(sema, "Self", &tree, offset).filter_map(ast::NameRef::cast)
+                    for name_ref in Self::find_nodes(sema, "Self", file_id, &tree, offset)
+                        .filter_map(ast::NameRef::cast)
                     {
                         if self.found_self_ty_name_ref(self_ty, &name_ref, sink) {
                             return;
@@ -1010,7 +1014,7 @@
                 let tree = LazyCell::new(move || sema.parse(file_id).syntax().clone());
 
                 for offset in Self::match_indices(&text, finder, search_range) {
-                    for name_ref in Self::find_nodes(sema, "super", &tree, offset)
+                    for name_ref in Self::find_nodes(sema, "super", file_id, &tree, offset)
                         .filter_map(ast::NameRef::cast)
                     {
                         if self.found_name_ref(&name_ref, sink) {
@@ -1020,7 +1024,7 @@
                 }
                 if let Some(finder) = &is_crate_root {
                     for offset in Self::match_indices(&text, finder, search_range) {
-                        for name_ref in Self::find_nodes(sema, "crate", &tree, offset)
+                        for name_ref in Self::find_nodes(sema, "crate", file_id, &tree, offset)
                             .filter_map(ast::NameRef::cast)
                         {
                             if self.found_name_ref(&name_ref, sink) {
@@ -1064,8 +1068,8 @@
                 let finder = &Finder::new("self");
 
                 for offset in Self::match_indices(&text, finder, search_range) {
-                    for name_ref in
-                        Self::find_nodes(sema, "self", &tree, offset).filter_map(ast::NameRef::cast)
+                    for name_ref in Self::find_nodes(sema, "self", file_id, &tree, offset)
+                        .filter_map(ast::NameRef::cast)
                     {
                         if self.found_self_module_name_ref(&name_ref, sink) {
                             return;
diff --git a/crates/ide-diagnostics/src/handlers/await_outside_of_async.rs b/crates/ide-diagnostics/src/handlers/await_outside_of_async.rs
index 92ca7a7..2a7b009 100644
--- a/crates/ide-diagnostics/src/handlers/await_outside_of_async.rs
+++ b/crates/ide-diagnostics/src/handlers/await_outside_of_async.rs
@@ -14,6 +14,7 @@
         format!("`await` is used inside {}, which is not an `async` context", d.location),
         display_range,
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/bad_rtn.rs b/crates/ide-diagnostics/src/handlers/bad_rtn.rs
index 9ed85f9..ae42a88 100644
--- a/crates/ide-diagnostics/src/handlers/bad_rtn.rs
+++ b/crates/ide-diagnostics/src/handlers/bad_rtn.rs
@@ -12,6 +12,7 @@
         "return type notation not allowed in this position yet",
         d.rtn.map(Into::into),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/break_outside_of_loop.rs b/crates/ide-diagnostics/src/handlers/break_outside_of_loop.rs
index c25b0a7..cbcaab6 100644
--- a/crates/ide-diagnostics/src/handlers/break_outside_of_loop.rs
+++ b/crates/ide-diagnostics/src/handlers/break_outside_of_loop.rs
@@ -19,6 +19,7 @@
         message,
         d.expr.map(|it| it.into()),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/elided_lifetimes_in_path.rs b/crates/ide-diagnostics/src/handlers/elided_lifetimes_in_path.rs
index 438dd2f..b284d9b 100644
--- a/crates/ide-diagnostics/src/handlers/elided_lifetimes_in_path.rs
+++ b/crates/ide-diagnostics/src/handlers/elided_lifetimes_in_path.rs
@@ -15,7 +15,6 @@
             "implicit elided lifetime not allowed here",
             d.generics_or_segment.map(Into::into),
         )
-        .experimental()
     } else {
         Diagnostic::new_with_syntax_node_ptr(
             ctx,
@@ -23,7 +22,6 @@
             "hidden lifetime parameters in types are deprecated",
             d.generics_or_segment.map(Into::into),
         )
-        .experimental()
     }
 }
 
diff --git a/crates/ide-diagnostics/src/handlers/expected_function.rs b/crates/ide-diagnostics/src/handlers/expected_function.rs
index a6da0fd..7d2ac37 100644
--- a/crates/ide-diagnostics/src/handlers/expected_function.rs
+++ b/crates/ide-diagnostics/src/handlers/expected_function.rs
@@ -15,7 +15,6 @@
         format!("expected function, found {}", d.found.display(ctx.sema.db, ctx.display_target)),
         d.call.map(|it| it.into()),
     )
-    .experimental()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/generic_args_prohibited.rs b/crates/ide-diagnostics/src/handlers/generic_args_prohibited.rs
index b617c09..9ae6f01 100644
--- a/crates/ide-diagnostics/src/handlers/generic_args_prohibited.rs
+++ b/crates/ide-diagnostics/src/handlers/generic_args_prohibited.rs
@@ -21,6 +21,7 @@
         describe_reason(d.reason),
         d.args.map(Into::into),
     )
+    .stable()
     .with_fixes(fixes(ctx, d))
 }
 
diff --git a/crates/ide-diagnostics/src/handlers/inactive_code.rs b/crates/ide-diagnostics/src/handlers/inactive_code.rs
index 47e1c84..8611ef6 100644
--- a/crates/ide-diagnostics/src/handlers/inactive_code.rs
+++ b/crates/ide-diagnostics/src/handlers/inactive_code.rs
@@ -33,6 +33,7 @@
         message,
         ctx.sema.diagnostics_display_range(d.node),
     )
+    .stable()
     .with_unused(true);
     Some(res)
 }
diff --git a/crates/ide-diagnostics/src/handlers/incoherent_impl.rs b/crates/ide-diagnostics/src/handlers/incoherent_impl.rs
index 0b9a2ec..a0c364b 100644
--- a/crates/ide-diagnostics/src/handlers/incoherent_impl.rs
+++ b/crates/ide-diagnostics/src/handlers/incoherent_impl.rs
@@ -19,6 +19,7 @@
         "cannot define inherent `impl` for foreign type".to_owned(),
         display_range,
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/incorrect_case.rs b/crates/ide-diagnostics/src/handlers/incorrect_case.rs
index 289a076..38f10c7 100644
--- a/crates/ide-diagnostics/src/handlers/incorrect_case.rs
+++ b/crates/ide-diagnostics/src/handlers/incorrect_case.rs
@@ -29,6 +29,7 @@
         ),
         InFile::new(d.file, d.ident.into()),
     )
+    .stable()
     .with_fixes(fixes(ctx, d))
 }
 
diff --git a/crates/ide-diagnostics/src/handlers/incorrect_generics_len.rs b/crates/ide-diagnostics/src/handlers/incorrect_generics_len.rs
index 17c7f75..06f3575 100644
--- a/crates/ide-diagnostics/src/handlers/incorrect_generics_len.rs
+++ b/crates/ide-diagnostics/src/handlers/incorrect_generics_len.rs
@@ -28,7 +28,6 @@
         message,
         d.generics_or_segment.map(Into::into),
     )
-    .experimental()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/incorrect_generics_order.rs b/crates/ide-diagnostics/src/handlers/incorrect_generics_order.rs
index 84496df..b71586d 100644
--- a/crates/ide-diagnostics/src/handlers/incorrect_generics_order.rs
+++ b/crates/ide-diagnostics/src/handlers/incorrect_generics_order.rs
@@ -28,6 +28,7 @@
         message,
         d.provided_arg.map(Into::into),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/invalid_cast.rs b/crates/ide-diagnostics/src/handlers/invalid_cast.rs
index d72b210..7a6e98f 100644
--- a/crates/ide-diagnostics/src/handlers/invalid_cast.rs
+++ b/crates/ide-diagnostics/src/handlers/invalid_cast.rs
@@ -100,7 +100,7 @@
         //     "cannot cast to a pointer of an unknown kind".to_owned(),
         // ),
     };
-    Diagnostic::new(code, message, display_range)
+    Diagnostic::new(code, message, display_range).stable()
 }
 
 // Diagnostic: cast-to-unsized
@@ -113,6 +113,7 @@
         format_ty!(ctx, "cast to unsized type: `{}`", d.cast_ty),
         display_range,
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/invalid_derive_target.rs b/crates/ide-diagnostics/src/handlers/invalid_derive_target.rs
index ab0f513..8b708f2 100644
--- a/crates/ide-diagnostics/src/handlers/invalid_derive_target.rs
+++ b/crates/ide-diagnostics/src/handlers/invalid_derive_target.rs
@@ -15,6 +15,7 @@
         "`derive` may only be applied to `struct`s, `enum`s and `union`s",
         display_range,
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/macro_error.rs b/crates/ide-diagnostics/src/handlers/macro_error.rs
index a2648a1..546512a 100644
--- a/crates/ide-diagnostics/src/handlers/macro_error.rs
+++ b/crates/ide-diagnostics/src/handlers/macro_error.rs
@@ -19,6 +19,7 @@
         d.message.clone(),
         display_range,
     )
+    .stable()
 }
 
 // Diagnostic: macro-def-error
@@ -33,6 +34,7 @@
         d.message.clone(),
         display_range,
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/malformed_derive.rs b/crates/ide-diagnostics/src/handlers/malformed_derive.rs
index 0e47fff..701b30b 100644
--- a/crates/ide-diagnostics/src/handlers/malformed_derive.rs
+++ b/crates/ide-diagnostics/src/handlers/malformed_derive.rs
@@ -14,6 +14,7 @@
         "malformed derive input, derive attributes are of the form `#[derive(Derive1, Derive2, ...)]`",
         display_range,
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs b/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs
index 63fd9b4..25c1e63 100644
--- a/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs
+++ b/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs
@@ -26,6 +26,7 @@
         message,
         invalid_args_range(ctx, d.expr_or_pat, d.expected, d.found),
     )
+    .stable()
 }
 
 // Diagnostic: mismatched-arg-count
@@ -42,6 +43,7 @@
         message,
         invalid_args_range(ctx, d.call_expr, d.expected, d.found),
     )
+    .stable()
 }
 
 fn invalid_args_range(
diff --git a/crates/ide-diagnostics/src/handlers/missing_fields.rs b/crates/ide-diagnostics/src/handlers/missing_fields.rs
index a354d12..2b76efb 100644
--- a/crates/ide-diagnostics/src/handlers/missing_fields.rs
+++ b/crates/ide-diagnostics/src/handlers/missing_fields.rs
@@ -47,6 +47,7 @@
     );
 
     Diagnostic::new_with_syntax_node_ptr(ctx, DiagnosticCode::RustcHardError("E0063"), message, ptr)
+        .stable()
         .with_fixes(fixes(ctx, d))
 }
 
diff --git a/crates/ide-diagnostics/src/handlers/missing_lifetime.rs b/crates/ide-diagnostics/src/handlers/missing_lifetime.rs
index 8cdbb63..76b3074 100644
--- a/crates/ide-diagnostics/src/handlers/missing_lifetime.rs
+++ b/crates/ide-diagnostics/src/handlers/missing_lifetime.rs
@@ -13,7 +13,6 @@
         "missing lifetime specifier",
         d.generics_or_segment.map(Into::into),
     )
-    .experimental()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/missing_match_arms.rs b/crates/ide-diagnostics/src/handlers/missing_match_arms.rs
index d3d3c3a..1fc96b7 100644
--- a/crates/ide-diagnostics/src/handlers/missing_match_arms.rs
+++ b/crates/ide-diagnostics/src/handlers/missing_match_arms.rs
@@ -13,6 +13,7 @@
         format!("missing match arm: {}", d.uncovered_patterns),
         d.scrutinee_expr.map(Into::into),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/missing_unsafe.rs b/crates/ide-diagnostics/src/handlers/missing_unsafe.rs
index 3c36b45..6bd5417 100644
--- a/crates/ide-diagnostics/src/handlers/missing_unsafe.rs
+++ b/crates/ide-diagnostics/src/handlers/missing_unsafe.rs
@@ -23,6 +23,7 @@
         format!("{operation} is unsafe and requires an unsafe function or block"),
         d.node.map(|it| it.into()),
     )
+    .stable()
     .with_fixes(fixes(ctx, d))
 }
 
@@ -893,4 +894,68 @@
         "#,
         );
     }
+
+    #[test]
+    fn asm_label() {
+        check_diagnostics(
+            r#"
+//- minicore: asm
+fn foo() {
+    unsafe {
+        core::arch::asm!(
+            "jmp {}",
+            label {
+                let p = 0xDEADBEAF as *mut u8;
+                *p = 3;
+             // ^^ error: dereference of raw pointer is unsafe and requires an unsafe function or block
+            },
+        );
+    }
+}
+            "#,
+        );
+    }
+
+    #[test]
+    fn regression_19823() {
+        check_diagnostics(
+            r#"
+pub trait FooTrait {
+    unsafe fn method1();
+    unsafe fn method2();
+}
+
+unsafe fn some_unsafe_fn() {}
+
+macro_rules! impl_foo {
+    () => {
+        unsafe fn method1() {
+            some_unsafe_fn();
+        }
+        unsafe fn method2() {
+            some_unsafe_fn();
+        }
+    };
+}
+
+pub struct S1;
+#[allow(unsafe_op_in_unsafe_fn)]
+impl FooTrait for S1 {
+    unsafe fn method1() {
+        some_unsafe_fn();
+    }
+
+    unsafe fn method2() {
+        some_unsafe_fn();
+    }
+}
+
+pub struct S2;
+#[allow(unsafe_op_in_unsafe_fn)]
+impl FooTrait for S2 {
+    impl_foo!();
+}
+        "#,
+        );
+    }
 }
diff --git a/crates/ide-diagnostics/src/handlers/moved_out_of_ref.rs b/crates/ide-diagnostics/src/handlers/moved_out_of_ref.rs
index 7802713..01cf5e8 100644
--- a/crates/ide-diagnostics/src/handlers/moved_out_of_ref.rs
+++ b/crates/ide-diagnostics/src/handlers/moved_out_of_ref.rs
@@ -11,7 +11,7 @@
         format!("cannot move `{}` out of reference", d.ty.display(ctx.sema.db, ctx.display_target)),
         d.span,
     )
-    .experimental() // spans are broken, and I'm not sure how precise we can detect copy types
+    // spans are broken, and I'm not sure how precise we can detect copy types
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/mutability_errors.rs b/crates/ide-diagnostics/src/handlers/mutability_errors.rs
index 5d25f2c..8831efa 100644
--- a/crates/ide-diagnostics/src/handlers/mutability_errors.rs
+++ b/crates/ide-diagnostics/src/handlers/mutability_errors.rs
@@ -55,6 +55,7 @@
             ),
             span,
         )
+        .stable()
         .with_fixes(fixes),
     )
 }
@@ -94,7 +95,7 @@
             "variable does not need to be mutable",
             ast,
         )
-        .experimental() // Not supporting `#[allow(unused_mut)]` in proc macros leads to false positive.
+        // Not supporting `#[allow(unused_mut)]` in proc macros leads to false positive, hence not stable.
         .with_fixes(fixes),
     )
 }
diff --git a/crates/ide-diagnostics/src/handlers/no_such_field.rs b/crates/ide-diagnostics/src/handlers/no_such_field.rs
index fa3347a..84fb467 100644
--- a/crates/ide-diagnostics/src/handlers/no_such_field.rs
+++ b/crates/ide-diagnostics/src/handlers/no_such_field.rs
@@ -22,6 +22,7 @@
             "field is private",
             node,
         )
+        .stable()
     } else {
         Diagnostic::new_with_syntax_node_ptr(
             ctx,
@@ -32,6 +33,7 @@
             "no such field",
             node,
         )
+        .stable()
         .with_fixes(fixes(ctx, d))
     }
 }
diff --git a/crates/ide-diagnostics/src/handlers/non_exhaustive_let.rs b/crates/ide-diagnostics/src/handlers/non_exhaustive_let.rs
index ff1eeb0..f20b6de 100644
--- a/crates/ide-diagnostics/src/handlers/non_exhaustive_let.rs
+++ b/crates/ide-diagnostics/src/handlers/non_exhaustive_let.rs
@@ -14,6 +14,7 @@
         format!("non-exhaustive pattern: {}", d.uncovered_patterns),
         d.pat.map(Into::into),
     )
+    .stable()
 }
 
 #[cfg(test)]
@@ -105,4 +106,29 @@
 "#,
         );
     }
+
+    #[test]
+    fn empty_patterns_normalize() {
+        check_diagnostics(
+            r#"
+enum Infallible {}
+
+trait Foo {
+    type Assoc;
+}
+enum Enum<T: Foo> {
+    A,
+    B(T::Assoc),
+}
+
+impl Foo for () {
+    type Assoc = Infallible;
+}
+
+fn foo(v: Enum<()>) {
+    let Enum::A = v;
+}
+        "#,
+        );
+    }
 }
diff --git a/crates/ide-diagnostics/src/handlers/parenthesized_generic_args_without_fn_trait.rs b/crates/ide-diagnostics/src/handlers/parenthesized_generic_args_without_fn_trait.rs
index ccf5172..68f2b19 100644
--- a/crates/ide-diagnostics/src/handlers/parenthesized_generic_args_without_fn_trait.rs
+++ b/crates/ide-diagnostics/src/handlers/parenthesized_generic_args_without_fn_trait.rs
@@ -14,6 +14,7 @@
         "parenthesized type parameters may only be used with a `Fn` trait",
         d.args.map(Into::into),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/private_assoc_item.rs b/crates/ide-diagnostics/src/handlers/private_assoc_item.rs
index fe32c59..6d33ae0 100644
--- a/crates/ide-diagnostics/src/handlers/private_assoc_item.rs
+++ b/crates/ide-diagnostics/src/handlers/private_assoc_item.rs
@@ -28,6 +28,7 @@
         ),
         d.expr_or_pat.map(Into::into),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/private_field.rs b/crates/ide-diagnostics/src/handlers/private_field.rs
index 237a9b8..5b4273a 100644
--- a/crates/ide-diagnostics/src/handlers/private_field.rs
+++ b/crates/ide-diagnostics/src/handlers/private_field.rs
@@ -15,6 +15,7 @@
         ),
         d.expr.map(|it| it.into()),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/remove_trailing_return.rs b/crates/ide-diagnostics/src/handlers/remove_trailing_return.rs
index 6b78645..dec7be8 100644
--- a/crates/ide-diagnostics/src/handlers/remove_trailing_return.rs
+++ b/crates/ide-diagnostics/src/handlers/remove_trailing_return.rs
@@ -31,6 +31,7 @@
             "replace return <expr>; with <expr>",
             display_range,
         )
+        .stable()
         .with_fixes(fixes(ctx, d)),
     )
 }
diff --git a/crates/ide-diagnostics/src/handlers/remove_unnecessary_else.rs b/crates/ide-diagnostics/src/handlers/remove_unnecessary_else.rs
index 8d717b9..7dc5b5b 100644
--- a/crates/ide-diagnostics/src/handlers/remove_unnecessary_else.rs
+++ b/crates/ide-diagnostics/src/handlers/remove_unnecessary_else.rs
@@ -36,7 +36,6 @@
             "remove unnecessary else block",
             display_range,
         )
-        .experimental()
         .with_fixes(fixes(ctx, d)),
     )
 }
diff --git a/crates/ide-diagnostics/src/handlers/replace_filter_map_next_with_find_map.rs b/crates/ide-diagnostics/src/handlers/replace_filter_map_next_with_find_map.rs
index 6b335c5..37ce5f5 100644
--- a/crates/ide-diagnostics/src/handlers/replace_filter_map_next_with_find_map.rs
+++ b/crates/ide-diagnostics/src/handlers/replace_filter_map_next_with_find_map.rs
@@ -21,6 +21,7 @@
         "replace filter_map(..).next() with find_map(..)",
         InFile::new(d.file, d.next_expr.into()),
     )
+    .stable()
     .with_fixes(fixes(ctx, d))
 }
 
diff --git a/crates/ide-diagnostics/src/handlers/trait_impl_incorrect_safety.rs b/crates/ide-diagnostics/src/handlers/trait_impl_incorrect_safety.rs
index 19ee1ca..dd142db 100644
--- a/crates/ide-diagnostics/src/handlers/trait_impl_incorrect_safety.rs
+++ b/crates/ide-diagnostics/src/handlers/trait_impl_incorrect_safety.rs
@@ -33,6 +33,7 @@
             },
         ),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/trait_impl_missing_assoc_item.rs b/crates/ide-diagnostics/src/handlers/trait_impl_missing_assoc_item.rs
index 2d7d78f..fa7ba90 100644
--- a/crates/ide-diagnostics/src/handlers/trait_impl_missing_assoc_item.rs
+++ b/crates/ide-diagnostics/src/handlers/trait_impl_missing_assoc_item.rs
@@ -29,6 +29,7 @@
             &|impl_| impl_.trait_().map(|t| t.syntax().text_range()),
         ),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/trait_impl_orphan.rs b/crates/ide-diagnostics/src/handlers/trait_impl_orphan.rs
index 35dc9b0..96911d4 100644
--- a/crates/ide-diagnostics/src/handlers/trait_impl_orphan.rs
+++ b/crates/ide-diagnostics/src/handlers/trait_impl_orphan.rs
@@ -16,8 +16,6 @@
             .to_owned(),
         InFile::new(d.file_id, d.impl_.into()),
     )
-    // Not yet checked for false positives
-    .experimental()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/trait_impl_redundant_assoc_item.rs b/crates/ide-diagnostics/src/handlers/trait_impl_redundant_assoc_item.rs
index d5c4bcf..4327b12 100644
--- a/crates/ide-diagnostics/src/handlers/trait_impl_redundant_assoc_item.rs
+++ b/crates/ide-diagnostics/src/handlers/trait_impl_redundant_assoc_item.rs
@@ -61,6 +61,7 @@
         format!("{redundant_item_name} is not a member of trait `{trait_name}`"),
         ide_db::FileRange { file_id: file_id.file_id(ctx.sema.db), range },
     )
+    .stable()
     .with_fixes(quickfix_for_redundant_assoc_item(
         ctx,
         d,
diff --git a/crates/ide-diagnostics/src/handlers/type_mismatch.rs b/crates/ide-diagnostics/src/handlers/type_mismatch.rs
index 500c5de..076df1a 100644
--- a/crates/ide-diagnostics/src/handlers/type_mismatch.rs
+++ b/crates/ide-diagnostics/src/handlers/type_mismatch.rs
@@ -53,8 +53,8 @@
         display_range,
     )
     .with_fixes(fixes(ctx, d));
-    if diag.fixes.is_none() {
-        diag.experimental = true;
+    if diag.fixes.is_some() {
+        diag.experimental = false;
     }
     diag
 }
@@ -1243,4 +1243,18 @@
     "#,
         );
     }
+
+    #[test]
+    fn regression_19844() {
+        check_diagnostics(
+            r#"
+fn main() {
+    struct S {}
+    enum E { V() }
+    let E::V() = &S {};
+     // ^^^^^^ error: expected S, found E
+}
+"#,
+        );
+    }
 }
diff --git a/crates/ide-diagnostics/src/handlers/typed_hole.rs b/crates/ide-diagnostics/src/handlers/typed_hole.rs
index a933f1b..1915a88 100644
--- a/crates/ide-diagnostics/src/handlers/typed_hole.rs
+++ b/crates/ide-diagnostics/src/handlers/typed_hole.rs
@@ -37,6 +37,7 @@
     };
 
     Diagnostic::new(DiagnosticCode::RustcHardError("typed-hole"), message, display_range)
+        .stable()
         .with_fixes(fixes)
 }
 
diff --git a/crates/ide-diagnostics/src/handlers/undeclared_label.rs b/crates/ide-diagnostics/src/handlers/undeclared_label.rs
index d16bfb8..f81d343 100644
--- a/crates/ide-diagnostics/src/handlers/undeclared_label.rs
+++ b/crates/ide-diagnostics/src/handlers/undeclared_label.rs
@@ -12,6 +12,7 @@
         format!("use of undeclared label `{}`", name.display(ctx.sema.db, ctx.edition)),
         d.node.map(|it| it.into()),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/unimplemented_builtin_macro.rs b/crates/ide-diagnostics/src/handlers/unimplemented_builtin_macro.rs
index 06f176f..5627393 100644
--- a/crates/ide-diagnostics/src/handlers/unimplemented_builtin_macro.rs
+++ b/crates/ide-diagnostics/src/handlers/unimplemented_builtin_macro.rs
@@ -13,4 +13,5 @@
         "unimplemented built-in macro".to_owned(),
         d.node,
     )
+    .stable()
 }
diff --git a/crates/ide-diagnostics/src/handlers/unlinked_file.rs b/crates/ide-diagnostics/src/handlers/unlinked_file.rs
index 47fa305..af9126c 100644
--- a/crates/ide-diagnostics/src/handlers/unlinked_file.rs
+++ b/crates/ide-diagnostics/src/handlers/unlinked_file.rs
@@ -2,7 +2,8 @@
 
 use std::iter;
 
-use hir::{DefMap, InFile, ModuleSource, db::DefDatabase};
+use hir::crate_def_map;
+use hir::{DefMap, InFile, ModuleSource};
 use ide_db::base_db::RootQueryDb;
 use ide_db::text_edit::TextEdit;
 use ide_db::{
@@ -101,7 +102,8 @@
     // check crate roots, i.e. main.rs, lib.rs, ...
     let relevant_crates = db.relevant_crates(file_id);
     'crates: for &krate in &*relevant_crates {
-        let crate_def_map = ctx.sema.db.crate_def_map(krate);
+        // FIXME: This shouldnt need to access the crate def map directly
+        let crate_def_map = crate_def_map(ctx.sema.db, krate);
 
         let root_module = &crate_def_map[DefMap::ROOT];
         let Some(root_file_id) = root_module.origin.file_id() else { continue };
@@ -156,7 +158,7 @@
     stack.pop();
     let relevant_crates = db.relevant_crates(parent_id);
     'crates: for &krate in relevant_crates.iter() {
-        let crate_def_map = ctx.sema.db.crate_def_map(krate);
+        let crate_def_map = crate_def_map(ctx.sema.db, krate);
         let Some((_, module)) = crate_def_map.modules().find(|(_, module)| {
             module.origin.file_id().map(|file_id| file_id.file_id(ctx.sema.db)) == Some(parent_id)
                 && !module.origin.is_inline()
diff --git a/crates/ide-diagnostics/src/handlers/unreachable_label.rs b/crates/ide-diagnostics/src/handlers/unreachable_label.rs
index bdff241..0c9e0d6 100644
--- a/crates/ide-diagnostics/src/handlers/unreachable_label.rs
+++ b/crates/ide-diagnostics/src/handlers/unreachable_label.rs
@@ -12,6 +12,7 @@
         format!("use of unreachable label `{}`", name.display(ctx.sema.db, ctx.edition)),
         d.node.map(|it| it.into()),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/unresolved_assoc_item.rs b/crates/ide-diagnostics/src/handlers/unresolved_assoc_item.rs
index 614057a..4ae528b 100644
--- a/crates/ide-diagnostics/src/handlers/unresolved_assoc_item.rs
+++ b/crates/ide-diagnostics/src/handlers/unresolved_assoc_item.rs
@@ -13,7 +13,6 @@
         "no such associated item",
         d.expr_or_pat.map(Into::into),
     )
-    .experimental()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/unresolved_extern_crate.rs b/crates/ide-diagnostics/src/handlers/unresolved_extern_crate.rs
index 4cd73d4..7c3eacf 100644
--- a/crates/ide-diagnostics/src/handlers/unresolved_extern_crate.rs
+++ b/crates/ide-diagnostics/src/handlers/unresolved_extern_crate.rs
@@ -13,6 +13,7 @@
         "unresolved extern crate",
         d.decl.map(|it| it.into()),
     )
+    .stable()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/unresolved_field.rs b/crates/ide-diagnostics/src/handlers/unresolved_field.rs
index a4f4813..0649c97 100644
--- a/crates/ide-diagnostics/src/handlers/unresolved_field.rs
+++ b/crates/ide-diagnostics/src/handlers/unresolved_field.rs
@@ -52,7 +52,6 @@
         }),
     )
     .with_fixes(fixes(ctx, d))
-    .experimental()
 }
 
 fn fixes(ctx: &DiagnosticsContext<'_>, d: &hir::UnresolvedField) -> Option<Vec<Assist>> {
diff --git a/crates/ide-diagnostics/src/handlers/unresolved_ident.rs b/crates/ide-diagnostics/src/handlers/unresolved_ident.rs
index 4f64dab..801023d 100644
--- a/crates/ide-diagnostics/src/handlers/unresolved_ident.rs
+++ b/crates/ide-diagnostics/src/handlers/unresolved_ident.rs
@@ -13,7 +13,6 @@
         range.range = in_node_range + range.range.start();
     }
     Diagnostic::new(DiagnosticCode::RustcHardError("E0425"), "no such value in this scope", range)
-        .experimental()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/unresolved_import.rs b/crates/ide-diagnostics/src/handlers/unresolved_import.rs
index 67c7e76..0da535d 100644
--- a/crates/ide-diagnostics/src/handlers/unresolved_import.rs
+++ b/crates/ide-diagnostics/src/handlers/unresolved_import.rs
@@ -18,7 +18,6 @@
     // - `cfg_if!`-generated code in libstd (we don't load the sysroot correctly)
     // - `core::arch` (we don't handle `#[path = "../<path>"]` correctly)
     // - proc macros and/or proc macro generated code
-    .experimental()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/unresolved_macro_call.rs b/crates/ide-diagnostics/src/handlers/unresolved_macro_call.rs
index 0d1c977..a87b8c4 100644
--- a/crates/ide-diagnostics/src/handlers/unresolved_macro_call.rs
+++ b/crates/ide-diagnostics/src/handlers/unresolved_macro_call.rs
@@ -16,7 +16,6 @@
         format!("unresolved macro `{}{bang}`", d.path.display(ctx.sema.db, ctx.edition)),
         display_range,
     )
-    .experimental()
 }
 
 #[cfg(test)]
diff --git a/crates/ide-diagnostics/src/handlers/unresolved_method.rs b/crates/ide-diagnostics/src/handlers/unresolved_method.rs
index 7f07009..00c2a8c 100644
--- a/crates/ide-diagnostics/src/handlers/unresolved_method.rs
+++ b/crates/ide-diagnostics/src/handlers/unresolved_method.rs
@@ -47,7 +47,6 @@
         }),
     )
     .with_fixes(fixes(ctx, d))
-    .experimental()
 }
 
 fn fixes(ctx: &DiagnosticsContext<'_>, d: &hir::UnresolvedMethodCall) -> Option<Vec<Assist>> {
diff --git a/crates/ide-diagnostics/src/handlers/unresolved_module.rs b/crates/ide-diagnostics/src/handlers/unresolved_module.rs
index 599cabe..1a409d7 100644
--- a/crates/ide-diagnostics/src/handlers/unresolved_module.rs
+++ b/crates/ide-diagnostics/src/handlers/unresolved_module.rs
@@ -28,6 +28,7 @@
         },
         d.decl.map(|it| it.into()),
     )
+    .stable()
     .with_fixes(fixes(ctx, d))
 }
 
diff --git a/crates/ide-diagnostics/src/handlers/unused_variables.rs b/crates/ide-diagnostics/src/handlers/unused_variables.rs
index 77b1075..e6bbff0 100644
--- a/crates/ide-diagnostics/src/handlers/unused_variables.rs
+++ b/crates/ide-diagnostics/src/handlers/unused_variables.rs
@@ -50,8 +50,7 @@
                 ast.file_id.is_macro(),
                 ctx.edition,
             )
-        }))
-        .experimental(),
+        })),
     )
 }
 
diff --git a/crates/ide-diagnostics/src/lib.rs b/crates/ide-diagnostics/src/lib.rs
index 607721d..72bd66d 100644
--- a/crates/ide-diagnostics/src/lib.rs
+++ b/crates/ide-diagnostics/src/lib.rs
@@ -83,12 +83,11 @@
 #[cfg(test)]
 mod tests;
 
-use std::{collections::hash_map, iter, sync::LazyLock};
+use std::{iter, sync::LazyLock};
 
 use either::Either;
 use hir::{
-    Crate, DisplayTarget, HirFileId, InFile, Semantics, db::ExpandDatabase,
-    diagnostics::AnyDiagnostic,
+    Crate, DisplayTarget, InFile, Semantics, db::ExpandDatabase, diagnostics::AnyDiagnostic,
 };
 use ide_db::{
     EditionedFileId, FileId, FileRange, FxHashMap, FxHashSet, RootDatabase, Severity, SnippetCap,
@@ -182,7 +181,7 @@
                 DiagnosticCode::Ra(_, s) => s,
             },
             unused: false,
-            experimental: false,
+            experimental: true,
             fixes: None,
             main_node: None,
         }
@@ -198,8 +197,8 @@
             .with_main_node(node)
     }
 
-    fn experimental(mut self) -> Diagnostic {
-        self.experimental = true;
+    fn stable(mut self) -> Diagnostic {
+        self.experimental = false;
         self
     }
 
@@ -424,14 +423,11 @@
             AnyDiagnostic::MacroExpansionParseError(d) => {
                 // FIXME: Point to the correct error span here, not just the macro-call name
                 res.extend(d.errors.iter().take(16).map(|err| {
-                    {
                         Diagnostic::new(
                             DiagnosticCode::SyntaxError,
                             format!("Syntax Error in Expansion: {err}"),
                             ctx.resolve_precise_location(&d.node.clone(), d.precise_location),
                         )
-                    }
-                    .experimental()
                 }));
                 continue;
             },
@@ -485,12 +481,8 @@
                 Some(it) => it,
                 None => continue,
             },
-            AnyDiagnostic::GenericArgsProhibited(d) => {
-                handlers::generic_args_prohibited::generic_args_prohibited(&ctx, &d)
-            }
-            AnyDiagnostic::ParenthesizedGenericArgsWithoutFnTrait(d) => {
-                handlers::parenthesized_generic_args_without_fn_trait::parenthesized_generic_args_without_fn_trait(&ctx, &d)
-            }
+            AnyDiagnostic::GenericArgsProhibited(d) => handlers::generic_args_prohibited::generic_args_prohibited(&ctx, &d),
+            AnyDiagnostic::ParenthesizedGenericArgsWithoutFnTrait(d) => handlers::parenthesized_generic_args_without_fn_trait::parenthesized_generic_args_without_fn_trait(&ctx, &d),
             AnyDiagnostic::BadRtn(d) => handlers::bad_rtn::bad_rtn(&ctx, &d),
             AnyDiagnostic::IncorrectGenericsLen(d) => handlers::incorrect_generics_len::incorrect_generics_len(&ctx, &d),
             AnyDiagnostic::IncorrectGenericsOrder(d) => handlers::incorrect_generics_order::incorrect_generics_order(&ctx, &d),
@@ -520,13 +512,7 @@
 
     // The edition isn't accurate (each diagnostics may have its own edition due to macros),
     // but it's okay as it's only being used for error recovery.
-    handle_lints(
-        &ctx.sema,
-        &mut FxHashMap::default(),
-        &mut lints,
-        &mut Vec::new(),
-        editioned_file_id.edition(db),
-    );
+    handle_lints(&ctx.sema, &mut lints, editioned_file_id.edition(db));
 
     res.retain(|d| d.severity != Severity::Allow);
 
@@ -591,8 +577,6 @@
     true
 }
 
-// `__RA_EVERY_LINT` is a fake lint group to allow every lint in proc macros
-
 struct BuiltLint {
     lint: &'static Lint,
     groups: Vec<&'static str>,
@@ -636,9 +620,7 @@
 
 fn handle_lints(
     sema: &Semantics<'_, RootDatabase>,
-    cache: &mut FxHashMap<HirFileId, FxHashMap<SmolStr, SeverityAttr>>,
     diagnostics: &mut [(InFile<SyntaxNode>, &mut Diagnostic)],
-    cache_stack: &mut Vec<HirFileId>,
     edition: Edition,
 ) {
     for (node, diag) in diagnostics {
@@ -652,7 +634,8 @@
             diag.severity = default_severity;
         }
 
-        let mut diag_severity = fill_lint_attrs(sema, node, cache, cache_stack, diag, edition);
+        let mut diag_severity =
+            lint_severity_at(sema, node, &lint_groups(&diag.code, edition), edition);
 
         if let outline_diag_severity @ Some(_) =
             find_outline_mod_lint_severity(sema, node, diag, edition)
@@ -705,155 +688,22 @@
     result
 }
 
-#[derive(Debug, Clone, Copy)]
-struct SeverityAttr {
-    severity: Severity,
-    /// This field counts how far we are from the main node. Bigger values mean more far.
-    ///
-    /// Note this isn't accurate: there can be gaps between values (created when merging severity maps).
-    /// The important thing is that if an attr is closer to the main node, it will have smaller value.
-    ///
-    /// This is necessary even though we take care to never overwrite a value from deeper nesting
-    /// because of lint groups. For example, in the following code:
-    /// ```
-    /// #[warn(non_snake_case)]
-    /// mod foo {
-    ///     #[allow(nonstandard_style)]
-    ///     mod bar {}
-    /// }
-    /// ```
-    /// We want to not warn on non snake case inside `bar`. If we are traversing this for the first
-    /// time, everything will be fine, because we will set `diag_severity` on the first matching group
-    /// and never overwrite it since then. But if `bar` is cached, the cache will contain both
-    /// `#[warn(non_snake_case)]` and `#[allow(nonstandard_style)]`, and without this field, we have
-    /// no way of differentiating between the two.
-    depth: u32,
-}
-
-fn fill_lint_attrs(
+fn lint_severity_at(
     sema: &Semantics<'_, RootDatabase>,
     node: &InFile<SyntaxNode>,
-    cache: &mut FxHashMap<HirFileId, FxHashMap<SmolStr, SeverityAttr>>,
-    cache_stack: &mut Vec<HirFileId>,
-    diag: &Diagnostic,
+    lint_groups: &LintGroups,
     edition: Edition,
 ) -> Option<Severity> {
-    let mut collected_lint_attrs = FxHashMap::<SmolStr, SeverityAttr>::default();
-    let mut diag_severity = None;
-
-    let mut ancestors = node.value.ancestors().peekable();
-    let mut depth = 0;
-    loop {
-        let ancestor = ancestors.next().expect("we always return from top-level nodes");
-        depth += 1;
-
-        if ancestors.peek().is_none() {
-            // We don't want to insert too many nodes into cache, but top level nodes (aka. outline modules
-            // or macro expansions) need to touch the database so they seem like a good fit to cache.
-
-            if let Some(cached) = cache.get_mut(&node.file_id) {
-                // This node (and everything above it) is already cached; the attribute is either here or nowhere.
-
-                // Workaround for the borrow checker.
-                let cached = std::mem::take(cached);
-
-                cached.iter().for_each(|(lint, severity)| {
-                    for item in &*cache_stack {
-                        let node_cache_entry = cache
-                            .get_mut(item)
-                            .expect("we always insert cached nodes into the cache map");
-                        let lint_cache_entry = node_cache_entry.entry(lint.clone());
-                        if let hash_map::Entry::Vacant(lint_cache_entry) = lint_cache_entry {
-                            // Do not overwrite existing lint attributes, as we go bottom to top and bottom attrs
-                            // overwrite top attrs.
-                            lint_cache_entry.insert(SeverityAttr {
-                                severity: severity.severity,
-                                depth: severity.depth + depth,
-                            });
-                        }
-                    }
-                });
-
-                let lints = lint_groups(&diag.code, edition);
-                let all_matching_groups =
-                    lints.iter().filter_map(|lint_group| cached.get(lint_group));
-                let cached_severity =
-                    all_matching_groups.min_by_key(|it| it.depth).map(|it| it.severity);
-
-                cache.insert(node.file_id, cached);
-
-                return diag_severity.or(cached_severity);
-            }
-
-            // Insert this node's descendants' attributes into any outline descendant, but not including this node.
-            // This must come before inserting this node's own attributes to preserve order.
-            collected_lint_attrs.drain().for_each(|(lint, severity)| {
-                if diag_severity.is_none() && lint_groups(&diag.code, edition).contains(&lint) {
-                    diag_severity = Some(severity.severity);
-                }
-
-                for item in &*cache_stack {
-                    let node_cache_entry = cache
-                        .get_mut(item)
-                        .expect("we always insert cached nodes into the cache map");
-                    let lint_cache_entry = node_cache_entry.entry(lint.clone());
-                    if let hash_map::Entry::Vacant(lint_cache_entry) = lint_cache_entry {
-                        // Do not overwrite existing lint attributes, as we go bottom to top and bottom attrs
-                        // overwrite top attrs.
-                        lint_cache_entry.insert(severity);
-                    }
-                }
-            });
-
-            cache_stack.push(node.file_id);
-            cache.insert(node.file_id, FxHashMap::default());
-
-            if let Some(ancestor) = ast::AnyHasAttrs::cast(ancestor) {
-                // Insert this node's attributes into any outline descendant, including this node.
-                lint_attrs(sema, ancestor, edition).for_each(|(lint, severity)| {
-                    if diag_severity.is_none() && lint_groups(&diag.code, edition).contains(&lint) {
-                        diag_severity = Some(severity);
-                    }
-
-                    for item in &*cache_stack {
-                        let node_cache_entry = cache
-                            .get_mut(item)
-                            .expect("we always insert cached nodes into the cache map");
-                        let lint_cache_entry = node_cache_entry.entry(lint.clone());
-                        if let hash_map::Entry::Vacant(lint_cache_entry) = lint_cache_entry {
-                            // Do not overwrite existing lint attributes, as we go bottom to top and bottom attrs
-                            // overwrite top attrs.
-                            lint_cache_entry.insert(SeverityAttr { severity, depth });
-                        }
-                    }
-                });
-            }
-
-            let parent_node = sema.find_parent_file(node.file_id);
-            if let Some(parent_node) = parent_node {
-                let parent_severity =
-                    fill_lint_attrs(sema, &parent_node, cache, cache_stack, diag, edition);
-                if diag_severity.is_none() {
-                    diag_severity = parent_severity;
-                }
-            }
-            cache_stack.pop();
-            return diag_severity;
-        } else if let Some(ancestor) = ast::AnyHasAttrs::cast(ancestor) {
-            lint_attrs(sema, ancestor, edition).for_each(|(lint, severity)| {
-                if diag_severity.is_none() && lint_groups(&diag.code, edition).contains(&lint) {
-                    diag_severity = Some(severity);
-                }
-
-                let lint_cache_entry = collected_lint_attrs.entry(lint);
-                if let hash_map::Entry::Vacant(lint_cache_entry) = lint_cache_entry {
-                    // Do not overwrite existing lint attributes, as we go bottom to top and bottom attrs
-                    // overwrite top attrs.
-                    lint_cache_entry.insert(SeverityAttr { severity, depth });
-                }
-            });
-        }
-    }
+    node.value
+        .ancestors()
+        .filter_map(ast::AnyHasAttrs::cast)
+        .find_map(|ancestor| {
+            lint_attrs(sema, ancestor, edition)
+                .find_map(|(lint, severity)| lint_groups.contains(&lint).then_some(severity))
+        })
+        .or_else(|| {
+            lint_severity_at(sema, &sema.find_parent_file(node.file_id)?, lint_groups, edition)
+        })
 }
 
 fn lint_attrs<'a>(
@@ -952,10 +802,6 @@
     fn contains(&self, group: &str) -> bool {
         self.groups.contains(&group) || (self.inside_warnings && group == "warnings")
     }
-
-    fn iter(&self) -> impl Iterator<Item = &'static str> {
-        self.groups.iter().copied().chain(self.inside_warnings.then_some("warnings"))
-    }
 }
 
 fn lint_groups(lint: &DiagnosticCode, edition: Edition) -> LintGroups {
diff --git a/crates/ide-ssr/src/lib.rs b/crates/ide-ssr/src/lib.rs
index 339c199..43c56ac 100644
--- a/crates/ide-ssr/src/lib.rs
+++ b/crates/ide-ssr/src/lib.rs
@@ -287,7 +287,7 @@
                 if let Some(expanded) = self.sema.expand_macro_call(&macro_call) {
                     if let Some(tt) = macro_call.token_tree() {
                         self.output_debug_for_nodes_at_range(
-                            &expanded,
+                            &expanded.value,
                             range,
                             &Some(self.sema.original_range(tt.syntax())),
                             out,
diff --git a/crates/ide-ssr/src/search.rs b/crates/ide-ssr/src/search.rs
index d89911f..9afbedb 100644
--- a/crates/ide-ssr/src/search.rs
+++ b/crates/ide-ssr/src/search.rs
@@ -194,7 +194,7 @@
                     // nodes that originated entirely from within the token tree of the macro call.
                     // i.e. we don't want to match something that came from the macro itself.
                     if let Some(range) = self.sema.original_range_opt(tt.syntax()) {
-                        self.slow_scan_node(&expanded, rule, &Some(range), matches_out);
+                        self.slow_scan_node(&expanded.value, rule, &Some(range), matches_out);
                     }
                 }
             }
diff --git a/crates/ide/src/doc_links.rs b/crates/ide/src/doc_links.rs
index f0247f3..2c98328 100644
--- a/crates/ide/src/doc_links.rs
+++ b/crates/ide/src/doc_links.rs
@@ -5,17 +5,21 @@
 
 mod intra_doc_links;
 
+use std::ops::Range;
+
 use pulldown_cmark::{BrokenLink, CowStr, Event, InlineStr, LinkType, Options, Parser, Tag};
 use pulldown_cmark_to_cmark::{Options as CMarkOptions, cmark_resume_with_options};
 use stdx::format_to;
 use url::Url;
 
-use hir::{Adt, AsAssocItem, AssocItem, AssocItemContainer, HasAttrs, db::HirDatabase, sym};
+use hir::{
+    Adt, AsAssocItem, AssocItem, AssocItemContainer, AttrsWithOwner, HasAttrs, db::HirDatabase, sym,
+};
 use ide_db::{
     RootDatabase,
     base_db::{CrateOrigin, LangCrateOrigin, ReleaseChannel, RootQueryDb},
     defs::{Definition, NameClass, NameRefClass},
-    documentation::{Documentation, HasDocs, docs_with_rangemap},
+    documentation::{DocsRangeMap, Documentation, HasDocs, docs_with_rangemap},
     helpers::pick_best_token,
 };
 use syntax::{
@@ -46,11 +50,17 @@
     Options::ENABLE_FOOTNOTES.union(Options::ENABLE_TABLES).union(Options::ENABLE_TASKLISTS);
 
 /// Rewrite documentation links in markdown to point to an online host (e.g. docs.rs)
-pub(crate) fn rewrite_links(db: &RootDatabase, markdown: &str, definition: Definition) -> String {
+pub(crate) fn rewrite_links(
+    db: &RootDatabase,
+    markdown: &str,
+    definition: Definition,
+    range_map: Option<DocsRangeMap>,
+) -> String {
     let mut cb = broken_link_clone_cb;
-    let doc = Parser::new_with_broken_link_callback(markdown, MARKDOWN_OPTIONS, Some(&mut cb));
+    let doc = Parser::new_with_broken_link_callback(markdown, MARKDOWN_OPTIONS, Some(&mut cb))
+        .into_offset_iter();
 
-    let doc = map_links(doc, |target, title| {
+    let doc = map_links(doc, |target, title, range| {
         // This check is imperfect, there's some overlap between valid intra-doc links
         // and valid URLs so we choose to be too eager to try to resolve what might be
         // a URL.
@@ -60,7 +70,16 @@
             // Two possibilities:
             // * path-based links: `../../module/struct.MyStruct.html`
             // * module-based links (AKA intra-doc links): `super::super::module::MyStruct`
-            if let Some((target, title)) = rewrite_intra_doc_link(db, definition, target, title) {
+            let text_range =
+                TextRange::new(range.start.try_into().unwrap(), range.end.try_into().unwrap());
+            let is_inner_doc = range_map
+                .as_ref()
+                .and_then(|range_map| range_map.map(text_range))
+                .map(|(_, attr_id)| attr_id.is_inner_attr())
+                .unwrap_or(false);
+            if let Some((target, title)) =
+                rewrite_intra_doc_link(db, definition, target, title, is_inner_doc)
+            {
                 (None, target, title)
             } else if let Some(target) = rewrite_url_link(db, definition, target) {
                 (Some(LinkType::Inline), target, title.to_owned())
@@ -195,22 +214,23 @@
     def: Definition,
     link: &str,
     ns: Option<hir::Namespace>,
+    is_inner_doc: bool,
 ) -> Option<Definition> {
     match def {
-        Definition::Module(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Crate(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Function(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Adt(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Variant(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Const(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Static(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Trait(it) => it.resolve_doc_path(db, link, ns),
-        Definition::TraitAlias(it) => it.resolve_doc_path(db, link, ns),
-        Definition::TypeAlias(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Macro(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Field(it) => it.resolve_doc_path(db, link, ns),
-        Definition::SelfType(it) => it.resolve_doc_path(db, link, ns),
-        Definition::ExternCrateDecl(it) => it.resolve_doc_path(db, link, ns),
+        Definition::Module(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Crate(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Function(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Adt(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Variant(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Const(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Static(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Trait(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::TraitAlias(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::TypeAlias(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Macro(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Field(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::SelfType(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::ExternCrateDecl(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
         Definition::BuiltinAttr(_)
         | Definition::BuiltinType(_)
         | Definition::BuiltinLifetime(_)
@@ -289,31 +309,58 @@
         let relative_comment_offset = offset - original_start - prefix_len;
 
         sema.descend_into_macros(doc_token).into_iter().find_map(|t| {
-            let (node, descended_prefix_len) = match_ast! {
+            let (node, descended_prefix_len, is_inner) = match_ast!{
                 match t {
-                    ast::Comment(comment) => (t.parent()?, TextSize::try_from(comment.prefix().len()).ok()?),
-                    ast::String(string) => (t.parent_ancestors().skip_while(|n| n.kind() != ATTR).nth(1)?, string.open_quote_text_range()?.len()),
+                    ast::Comment(comment) => {
+                        (t.parent()?, TextSize::try_from(comment.prefix().len()).ok()?, comment.is_inner())
+                    },
+                    ast::String(string) => {
+                        let attr = t.parent_ancestors().find_map(ast::Attr::cast)?;
+                        let attr_is_inner = attr.excl_token().map(|excl| excl.kind() == BANG).unwrap_or(false);
+                        (attr.syntax().parent()?, string.open_quote_text_range()?.len(), attr_is_inner)
+                    },
                     _ => return None,
                 }
             };
             let token_start = t.text_range().start();
             let abs_in_expansion_offset = token_start + relative_comment_offset + descended_prefix_len;
-
-            let (attributes, def) = doc_attributes(sema, &node)?;
+            let (attributes, def) = Self::doc_attributes(sema, &node, is_inner)?;
             let (docs, doc_mapping) = docs_with_rangemap(sema.db, &attributes)?;
-            let (in_expansion_range, link, ns) =
+            let (in_expansion_range, link, ns, is_inner) =
                 extract_definitions_from_docs(&docs).into_iter().find_map(|(range, link, ns)| {
-                    let mapped = doc_mapping.map(range)?;
-                    (mapped.value.contains(abs_in_expansion_offset)).then_some((mapped.value, link, ns))
+                    let (mapped, idx) = doc_mapping.map(range)?;
+                    (mapped.value.contains(abs_in_expansion_offset)).then_some((mapped.value, link, ns, idx.is_inner_attr()))
                 })?;
             // get the relative range to the doc/attribute in the expansion
             let in_expansion_relative_range = in_expansion_range - descended_prefix_len - token_start;
             // Apply relative range to the original input comment
             let absolute_range = in_expansion_relative_range + original_start + prefix_len;
-            let def = resolve_doc_path_for_def(sema.db, def, &link, ns)?;
+            let def = resolve_doc_path_for_def(sema.db, def, &link, ns, is_inner)?;
             cb(def, node, absolute_range)
         })
     }
+
+    /// When we hover a inner doc item, this find a attached definition.
+    /// ```
+    /// // node == ITEM_LIST
+    /// // node.parent == EXPR_BLOCK
+    /// // node.parent().parent() == FN
+    /// fn f() {
+    ///    //! [`S$0`]
+    /// }
+    /// ```
+    fn doc_attributes(
+        sema: &Semantics<'_, RootDatabase>,
+        node: &SyntaxNode,
+        is_inner_doc: bool,
+    ) -> Option<(AttrsWithOwner, Definition)> {
+        if is_inner_doc && node.kind() != SOURCE_FILE {
+            let parent = node.parent()?;
+            doc_attributes(sema, &parent).or(doc_attributes(sema, &parent.parent()?))
+        } else {
+            doc_attributes(sema, node)
+        }
+    }
 }
 
 fn broken_link_clone_cb(link: BrokenLink<'_>) -> Option<(CowStr<'_>, CowStr<'_>)> {
@@ -369,6 +416,7 @@
     def: Definition,
     target: &str,
     title: &str,
+    is_inner_doc: bool,
 ) -> Option<(String, String)> {
     let (link, ns) = parse_intra_doc_link(target);
 
@@ -377,7 +425,7 @@
         None => (link, None),
     };
 
-    let resolved = resolve_doc_path_for_def(db, def, link, ns)?;
+    let resolved = resolve_doc_path_for_def(db, def, link, ns, is_inner_doc)?;
     let mut url = get_doc_base_urls(db, resolved, None, None).0?;
 
     let (_, file, frag) = filename_and_frag_for_def(db, resolved)?;
@@ -421,8 +469,8 @@
 
 /// Rewrites a markdown document, applying 'callback' to each link.
 fn map_links<'e>(
-    events: impl Iterator<Item = Event<'e>>,
-    callback: impl Fn(&str, &str) -> (Option<LinkType>, String, String),
+    events: impl Iterator<Item = (Event<'e>, Range<usize>)>,
+    callback: impl Fn(&str, &str, Range<usize>) -> (Option<LinkType>, String, String),
 ) -> impl Iterator<Item = Event<'e>> {
     let mut in_link = false;
     // holds the origin link target on start event and the rewritten one on end event
@@ -432,7 +480,7 @@
     // `Shortcut` type parsed from Start/End tags doesn't make sense for url links
     let mut end_link_type: Option<LinkType> = None;
 
-    events.map(move |evt| match evt {
+    events.map(move |(evt, range)| match evt {
         Event::Start(Tag::Link(link_type, ref target, _)) => {
             in_link = true;
             end_link_target = Some(target.clone());
@@ -449,7 +497,7 @@
         }
         Event::Text(s) if in_link => {
             let (link_type, link_target_s, link_name) =
-                callback(&end_link_target.take().unwrap(), &s);
+                callback(&end_link_target.take().unwrap(), &s, range);
             end_link_target = Some(CowStr::Boxed(link_target_s.into()));
             if !matches!(end_link_type, Some(LinkType::Autolink)) {
                 end_link_type = link_type;
@@ -458,7 +506,7 @@
         }
         Event::Code(s) if in_link => {
             let (link_type, link_target_s, link_name) =
-                callback(&end_link_target.take().unwrap(), &s);
+                callback(&end_link_target.take().unwrap(), &s, range);
             end_link_target = Some(CowStr::Boxed(link_target_s.into()));
             if !matches!(end_link_type, Some(LinkType::Autolink)) {
                 end_link_type = link_type;
diff --git a/crates/ide/src/doc_links/tests.rs b/crates/ide/src/doc_links/tests.rs
index 91785be..6af156f 100644
--- a/crates/ide/src/doc_links/tests.rs
+++ b/crates/ide/src/doc_links/tests.rs
@@ -5,7 +5,7 @@
 use ide_db::{
     FilePosition, FileRange, RootDatabase,
     defs::Definition,
-    documentation::{Documentation, HasDocs},
+    documentation::{DocsRangeMap, Documentation, HasDocs},
 };
 use itertools::Itertools;
 use syntax::{AstNode, SyntaxNode, ast, match_ast};
@@ -45,8 +45,8 @@
 fn check_rewrite(#[rust_analyzer::rust_fixture] ra_fixture: &str, expect: Expect) {
     let (analysis, position) = fixture::position(ra_fixture);
     let sema = &Semantics::new(&analysis.db);
-    let (cursor_def, docs) = def_under_cursor(sema, &position);
-    let res = rewrite_links(sema.db, docs.as_str(), cursor_def);
+    let (cursor_def, docs, range) = def_under_cursor(sema, &position);
+    let res = rewrite_links(sema.db, docs.as_str(), cursor_def, Some(range));
     expect.assert_eq(&res)
 }
 
@@ -56,12 +56,14 @@
     let (analysis, position, mut expected) = fixture::annotations(ra_fixture);
     expected.sort_by_key(key_fn);
     let sema = &Semantics::new(&analysis.db);
-    let (cursor_def, docs) = def_under_cursor(sema, &position);
+    let (cursor_def, docs, range) = def_under_cursor(sema, &position);
     let defs = extract_definitions_from_docs(&docs);
     let actual: Vec<_> = defs
         .into_iter()
-        .flat_map(|(_, link, ns)| {
-            let def = resolve_doc_path_for_def(sema.db, cursor_def, &link, ns)
+        .flat_map(|(text_range, link, ns)| {
+            let attr = range.map(text_range);
+            let is_inner_attr = attr.map(|(_file, attr)| attr.is_inner_attr()).unwrap_or(false);
+            let def = resolve_doc_path_for_def(sema.db, cursor_def, &link, ns, is_inner_attr)
                 .unwrap_or_else(|| panic!("Failed to resolve {link}"));
             def.try_to_nav(sema.db).unwrap().into_iter().zip(iter::repeat(link))
         })
@@ -78,7 +80,7 @@
 fn def_under_cursor(
     sema: &Semantics<'_, RootDatabase>,
     position: &FilePosition,
-) -> (Definition, Documentation) {
+) -> (Definition, Documentation, DocsRangeMap) {
     let (docs, def) = sema
         .parse_guess_edition(position.file_id)
         .syntax()
@@ -89,31 +91,31 @@
         .find_map(|it| node_to_def(sema, &it))
         .expect("no def found")
         .unwrap();
-    let docs = docs.expect("no docs found for cursor def");
-    (def, docs)
+    let (docs, range) = docs.expect("no docs found for cursor def");
+    (def, docs, range)
 }
 
 fn node_to_def(
     sema: &Semantics<'_, RootDatabase>,
     node: &SyntaxNode,
-) -> Option<Option<(Option<Documentation>, Definition)>> {
+) -> Option<Option<(Option<(Documentation, DocsRangeMap)>, Definition)>> {
     Some(match_ast! {
         match node {
-            ast::SourceFile(it)  => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Module(def))),
-            ast::Module(it)      => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Module(def))),
-            ast::Fn(it)          => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Function(def))),
-            ast::Struct(it)      => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Adt(hir::Adt::Struct(def)))),
-            ast::Union(it)       => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Adt(hir::Adt::Union(def)))),
-            ast::Enum(it)        => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Adt(hir::Adt::Enum(def)))),
-            ast::Variant(it)     => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Variant(def))),
-            ast::Trait(it)       => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Trait(def))),
-            ast::Static(it)      => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Static(def))),
-            ast::Const(it)       => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Const(def))),
-            ast::TypeAlias(it)   => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::TypeAlias(def))),
-            ast::Impl(it)        => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::SelfType(def))),
-            ast::RecordField(it) => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Field(def))),
-            ast::TupleField(it)  => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Field(def))),
-            ast::Macro(it)       => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Macro(def))),
+            ast::SourceFile(it)  => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Module(def))),
+            ast::Module(it)      => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Module(def))),
+            ast::Fn(it)          => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Function(def))),
+            ast::Struct(it)      => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Adt(hir::Adt::Struct(def)))),
+            ast::Union(it)       => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Adt(hir::Adt::Union(def)))),
+            ast::Enum(it)        => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Adt(hir::Adt::Enum(def)))),
+            ast::Variant(it)     => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Variant(def))),
+            ast::Trait(it)       => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Trait(def))),
+            ast::Static(it)      => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Static(def))),
+            ast::Const(it)       => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Const(def))),
+            ast::TypeAlias(it)   => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::TypeAlias(def))),
+            ast::Impl(it)        => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::SelfType(def))),
+            ast::RecordField(it) => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Field(def))),
+            ast::TupleField(it)  => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Field(def))),
+            ast::Macro(it)       => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Macro(def))),
             // ast::Use(it) => sema.to_def(&it).map(|def| (Box::new(it) as _, def.attrs(sema.db))),
             _ => return None,
         }
@@ -576,6 +578,40 @@
 }
 
 #[test]
+fn doc_links_module() {
+    check_doc_links(
+        r#"
+/// [`M`]
+/// [`M::f`]
+mod M$0 {
+  //^ M
+  #![doc = "inner_item[`S`]"]
+
+    pub fn f() {}
+         //^ M::f
+    pub struct S;
+             //^ S
+}
+"#,
+    );
+
+    check_doc_links(
+        r#"
+mod M$0 {
+  //^ super::M
+    //! [`super::M`]
+    //! [`super::M::f`]
+    //! [`super::M::S`]
+    pub fn f() {}
+         //^ super::M::f
+    pub struct S;
+             //^ super::M::S
+}
+"#,
+    );
+}
+
+#[test]
 fn rewrite_html_root_url() {
     check_rewrite(
         r#"
@@ -691,6 +727,29 @@
 }
 
 #[test]
+fn rewrite_module() {
+    check_rewrite(
+        r#"
+//- /main.rs crate:foo
+/// [Foo]
+pub mod $0Foo{
+};
+"#,
+        expect![[r#"[Foo](https://docs.rs/foo/*/foo/Foo/index.html)"#]],
+    );
+
+    check_rewrite(
+        r#"
+//- /main.rs crate:foo
+pub mod $0Foo{
+    //! [super::Foo]
+};
+"#,
+        expect![[r#"[super::Foo](https://docs.rs/foo/*/foo/Foo/index.html)"#]],
+    );
+}
+
+#[test]
 fn rewrite_intra_doc_link_to_associated_item() {
     check_rewrite(
         r#"
diff --git a/crates/ide/src/expand_macro.rs b/crates/ide/src/expand_macro.rs
index 241a702..7c39633 100644
--- a/crates/ide/src/expand_macro.rs
+++ b/crates/ide/src/expand_macro.rs
@@ -1,10 +1,10 @@
 use hir::db::ExpandDatabase;
-use hir::{ExpandResult, InFile, Semantics};
+use hir::{ExpandResult, InFile, InRealFile, Semantics};
 use ide_db::{
     FileId, RootDatabase, base_db::Crate, helpers::pick_best_token,
     syntax_helpers::prettify_macro_expansion,
 };
-use span::{Edition, SpanMap, SyntaxContext, TextRange, TextSize};
+use span::{SpanMap, SyntaxContext, TextRange, TextSize};
 use stdx::format_to;
 use syntax::{AstNode, NodeOrToken, SyntaxKind, SyntaxNode, T, ast, ted};
 
@@ -26,8 +26,9 @@
 // ![Expand Macro Recursively](https://user-images.githubusercontent.com/48062697/113020648-b3973180-917a-11eb-84a9-ecb921293dc5.gif)
 pub(crate) fn expand_macro(db: &RootDatabase, position: FilePosition) -> Option<ExpandedMacro> {
     let sema = Semantics::new(db);
-    let file = sema.parse_guess_edition(position.file_id);
-    let krate = sema.file_to_module_def(position.file_id)?.krate().into();
+    let file_id = sema.attach_first_edition(position.file_id)?;
+    let file = sema.parse(file_id);
+    let krate = sema.file_to_module_def(file_id.file_id(db))?.krate().into();
 
     let tok = pick_best_token(file.syntax().token_at_offset(position.offset), |kind| match kind {
         SyntaxKind::IDENT => 1,
@@ -86,7 +87,10 @@
         return derive;
     }
 
-    let mut anc = tok.parent_ancestors();
+    let mut anc = sema
+        .descend_token_into_include_expansion(InRealFile::new(file_id, tok))
+        .value
+        .parent_ancestors();
     let mut span_map = SpanMap::empty();
     let mut error = String::new();
     let (name, expanded, kind) = loop {
@@ -95,14 +99,7 @@
         if let Some(item) = ast::Item::cast(node.clone()) {
             if let Some(def) = sema.resolve_attr_macro_call(&item) {
                 break (
-                    def.name(db)
-                        .display(
-                            db,
-                            sema.attach_first_edition(position.file_id)
-                                .map(|it| it.edition(db))
-                                .unwrap_or(Edition::CURRENT),
-                        )
-                        .to_string(),
+                    def.name(db).display(db, file_id.edition(db)).to_string(),
                     expand_macro_recur(&sema, &item, &mut error, &mut span_map, TextSize::new(0))?,
                     SyntaxKind::MACRO_ITEMS,
                 );
@@ -146,10 +143,11 @@
     offset_in_original_node: TextSize,
 ) -> Option<SyntaxNode> {
     let ExpandResult { value: expanded, err } = match macro_call {
-        item @ ast::Item::MacroCall(macro_call) => {
-            sema.expand_attr_macro(item).or_else(|| sema.expand_allowed_builtins(macro_call))?
-        }
-        item => sema.expand_attr_macro(item)?,
+        item @ ast::Item::MacroCall(macro_call) => sema
+            .expand_attr_macro(item)
+            .map(|it| it.map(|it| it.value))
+            .or_else(|| sema.expand_allowed_builtins(macro_call))?,
+        item => sema.expand_attr_macro(item)?.map(|it| it.value),
     };
     let expanded = expanded.clone_for_update();
     if let Some(err) = err {
@@ -718,4 +716,88 @@
             "#]],
         );
     }
+
+    #[test]
+    fn assoc_call() {
+        check(
+            r#"
+macro_rules! mac {
+    () => { fn assoc() {} }
+}
+impl () {
+    mac$0!();
+}
+    "#,
+            expect![[r#"
+                mac!
+                fn assoc(){}"#]],
+        );
+    }
+
+    #[test]
+    fn eager() {
+        check(
+            r#"
+//- minicore: concat
+macro_rules! my_concat {
+    ($head:expr, $($tail:tt)*) => { concat!($head, $($tail)*) };
+}
+
+
+fn test() {
+    _ = my_concat!(
+        conc$0at!("<", ">"),
+        "hi",
+    );
+}
+    "#,
+            expect![[r#"
+                my_concat!
+                "<>hi""#]],
+        );
+    }
+
+    #[test]
+    fn in_included() {
+        check(
+            r#"
+//- minicore: include
+//- /main.rs crate:main
+include!("./included.rs");
+//- /included.rs
+macro_rules! foo {
+    () => { fn item() {} };
+}
+foo$0!();
+"#,
+            expect![[r#"
+                foo!
+                fn item(){}"#]],
+        );
+    }
+
+    #[test]
+    fn include() {
+        check(
+            r#"
+//- minicore: include
+//- /main.rs crate:main
+include$0!("./included.rs");
+//- /included.rs
+macro_rules! foo {
+    () => { fn item() {} };
+}
+foo();
+"#,
+            expect![[r#"
+                include!
+                macro_rules! foo {
+                    () => {
+                        fn item(){}
+
+                    };
+                }
+                foo();"#]],
+        );
+    }
 }
diff --git a/crates/ide/src/goto_definition.rs b/crates/ide/src/goto_definition.rs
index b894e85..c60ca35 100644
--- a/crates/ide/src/goto_definition.rs
+++ b/crates/ide/src/goto_definition.rs
@@ -1923,6 +1923,74 @@
     }
 
     #[test]
+    fn goto_def_for_intra_doc_link_outer_same_file() {
+        check(
+            r#"
+/// [`S$0`]
+mod m {
+    //! [`super::S`]
+}
+struct S;
+     //^
+            "#,
+        );
+
+        check(
+            r#"
+/// [`S$0`]
+mod m {}
+struct S;
+     //^
+            "#,
+        );
+
+        check(
+            r#"
+/// [`S$0`]
+fn f() {
+    //! [`S`]
+}
+struct S;
+     //^
+            "#,
+        );
+    }
+
+    #[test]
+    fn goto_def_for_intra_doc_link_inner_same_file() {
+        check(
+            r#"
+/// [`S`]
+mod m {
+    //! [`super::S$0`]
+}
+struct S;
+     //^
+            "#,
+        );
+
+        check(
+            r#"
+mod m {
+    //! [`super::S$0`]
+}
+struct S;
+     //^
+            "#,
+        );
+
+        check(
+            r#"
+fn f() {
+    //! [`S$0`]
+}
+struct S;
+     //^
+            "#,
+        );
+    }
+
+    #[test]
     fn goto_def_for_intra_doc_link_inner() {
         check(
             r#"
diff --git a/crates/ide/src/highlight_related.rs b/crates/ide/src/highlight_related.rs
index 80624ee..520ba39 100644
--- a/crates/ide/src/highlight_related.rs
+++ b/crates/ide/src/highlight_related.rs
@@ -89,6 +89,9 @@
         T![break] | T![loop] | T![while] | T![continue] if config.break_points => {
             highlight_break_points(sema, token).remove(&file_id)
         }
+        T![unsafe] if token.parent().and_then(ast::BlockExpr::cast).is_some() => {
+            highlight_unsafe_points(sema, token).remove(&file_id)
+        }
         T![|] if config.closure_captures => {
             highlight_closure_captures(sema, token, file_id, span_file_id.file_id())
         }
@@ -650,7 +653,7 @@
                             expr.macro_call().and_then(|call| self.sema.expand_macro_call(&call))
                         {
                             match_ast! {
-                                match expanded {
+                                match (expanded.value) {
                                     ast::MacroStmts(it) => {
                                         self.handle_expanded(it, cb);
                                     },
@@ -706,6 +709,44 @@
     }
 }
 
+pub(crate) fn highlight_unsafe_points(
+    sema: &Semantics<'_, RootDatabase>,
+    token: SyntaxToken,
+) -> FxHashMap<EditionedFileId, Vec<HighlightedRange>> {
+    fn hl(
+        sema: &Semantics<'_, RootDatabase>,
+        unsafe_token: &SyntaxToken,
+        block_expr: Option<ast::BlockExpr>,
+    ) -> Option<FxHashMap<EditionedFileId, Vec<HighlightedRange>>> {
+        let mut highlights: FxHashMap<EditionedFileId, Vec<_>> = FxHashMap::default();
+
+        let mut push_to_highlights = |file_id, range| {
+            if let Some(FileRange { file_id, range }) = original_frange(sema.db, file_id, range) {
+                let hrange = HighlightedRange { category: ReferenceCategory::empty(), range };
+                highlights.entry(file_id).or_default().push(hrange);
+            }
+        };
+
+        // highlight unsafe keyword itself
+        let unsafe_token_file_id = sema.hir_file_for(&unsafe_token.parent()?);
+        push_to_highlights(unsafe_token_file_id, Some(unsafe_token.text_range()));
+
+        // highlight unsafe operations
+        if let Some(block) = block_expr {
+            if let Some(body) = sema.body_for(InFile::new(unsafe_token_file_id, block.syntax())) {
+                let unsafe_ops = sema.get_unsafe_ops(body);
+                for unsafe_op in unsafe_ops {
+                    push_to_highlights(unsafe_op.file_id, Some(unsafe_op.value.text_range()));
+                }
+            }
+        }
+
+        Some(highlights)
+    }
+
+    hl(sema, &token, token.parent().and_then(ast::BlockExpr::cast)).unwrap_or_default()
+}
+
 #[cfg(test)]
 mod tests {
     use itertools::Itertools;
@@ -755,6 +796,32 @@
     }
 
     #[test]
+    fn test_hl_unsafe_block() {
+        check(
+            r#"
+fn foo() {
+    unsafe fn this_is_unsafe_function() {}
+
+    unsa$0fe {
+  //^^^^^^
+        let raw_ptr = &42 as *const i32;
+        let val = *raw_ptr;
+                //^^^^^^^^
+
+        let mut_ptr = &mut 5 as *mut i32;
+        *mut_ptr = 10;
+      //^^^^^^^^
+
+        this_is_unsafe_function();
+      //^^^^^^^^^^^^^^^^^^^^^^^^^
+    }
+
+}
+"#,
+        );
+    }
+
+    #[test]
     fn test_hl_tuple_fields() {
         check(
             r#"
diff --git a/crates/ide/src/hover.rs b/crates/ide/src/hover.rs
index 075afce..8bb1c70 100644
--- a/crates/ide/src/hover.rs
+++ b/crates/ide/src/hover.rs
@@ -58,6 +58,7 @@
     pub size: Option<MemoryLayoutHoverRenderKind>,
     pub offset: Option<MemoryLayoutHoverRenderKind>,
     pub alignment: Option<MemoryLayoutHoverRenderKind>,
+    pub padding: Option<MemoryLayoutHoverRenderKind>,
     pub niches: bool,
 }
 
@@ -456,7 +457,7 @@
     let notable_traits = def_ty.map(|ty| notable_traits(db, &ty)).unwrap_or_default();
     let subst_types = subst.map(|subst| subst.types(db));
 
-    let markup = render::definition(
+    let (markup, range_map) = render::definition(
         sema.db,
         def,
         famous_defs.as_ref(),
@@ -469,7 +470,7 @@
         display_target,
     );
     HoverResult {
-        markup: render::process_markup(sema.db, def, &markup, config),
+        markup: render::process_markup(sema.db, def, &markup, range_map, config),
         actions: [
             show_fn_references_action(sema.db, def),
             show_implementations_action(sema.db, def),
diff --git a/crates/ide/src/hover/render.rs b/crates/ide/src/hover/render.rs
index 69b83f3..c24864a 100644
--- a/crates/ide/src/hover/render.rs
+++ b/crates/ide/src/hover/render.rs
@@ -11,7 +11,7 @@
 use ide_db::{
     RootDatabase,
     defs::Definition,
-    documentation::HasDocs,
+    documentation::{DocsRangeMap, HasDocs},
     famous_defs::FamousDefs,
     generated::lints::{CLIPPY_LINTS, DEFAULT_LINTS, FEATURES},
     syntax_helpers::prettify_macro_expansion,
@@ -21,7 +21,7 @@
     Float,
     ieee::{Half as f16, Quad as f128},
 };
-use span::Edition;
+use span::{Edition, TextSize};
 use stdx::format_to;
 use syntax::{AstNode, AstToken, Direction, SyntaxToken, T, algo, ast, match_ast};
 
@@ -276,13 +276,10 @@
         keyword_hints(sema, token, parent, edition, display_target);
 
     let doc_owner = find_std_module(&famous_defs, &keyword_mod, edition)?;
-    let docs = doc_owner.docs(sema.db)?;
-    let markup = process_markup(
-        sema.db,
-        Definition::Module(doc_owner),
-        &markup(Some(docs.into()), description, None, None, String::new()),
-        config,
-    );
+    let (docs, range_map) = doc_owner.docs_with_rangemap(sema.db)?;
+    let (markup, range_map) =
+        markup(Some(docs.into()), Some(range_map), description, None, None, String::new());
+    let markup = process_markup(sema.db, Definition::Module(doc_owner), &markup, range_map, config);
     Some(HoverResult { markup, actions })
 }
 
@@ -371,11 +368,15 @@
     db: &RootDatabase,
     def: Definition,
     markup: &Markup,
+    markup_range_map: Option<DocsRangeMap>,
     config: &HoverConfig,
 ) -> Markup {
     let markup = markup.as_str();
-    let markup =
-        if config.links_in_hover { rewrite_links(db, markup, def) } else { remove_links(markup) };
+    let markup = if config.links_in_hover {
+        rewrite_links(db, markup, def, markup_range_map)
+    } else {
+        remove_links(markup)
+    };
     Markup::from(markup)
 }
 
@@ -482,7 +483,7 @@
     config: &HoverConfig,
     edition: Edition,
     display_target: DisplayTarget,
-) -> Markup {
+) -> (Markup, Option<DocsRangeMap>) {
     let mod_path = definition_path(db, &def, edition);
     let label = match def {
         Definition::Trait(trait_) => trait_
@@ -518,7 +519,12 @@
         }
         _ => def.label(db, display_target),
     };
-    let docs = def.docs(db, famous_defs, display_target);
+    let (docs, range_map) =
+        if let Some((docs, doc_range)) = def.docs_with_rangemap(db, famous_defs, display_target) {
+            (Some(docs), doc_range)
+        } else {
+            (None, None)
+        };
     let value = || match def {
         Definition::Variant(it) => {
             if !it.parent_enum(db).is_data_carrying(db) {
@@ -624,27 +630,57 @@
                 }
             },
             |_| None,
+            |_| None,
         ),
-        Definition::Adt(it) => {
-            render_memory_layout(config.memory_layout, || it.layout(db), |_| None, |_| None)
-        }
+        Definition::Adt(it @ Adt::Struct(strukt)) => render_memory_layout(
+            config.memory_layout,
+            || it.layout(db),
+            |_| None,
+            |layout| {
+                let mut field_size =
+                    |i: usize| Some(strukt.fields(db).get(i)?.layout(db).ok()?.size());
+                if strukt.repr(db).is_some_and(|it| it.inhibit_struct_field_reordering()) {
+                    Some(("tail padding", layout.tail_padding(&mut field_size)?))
+                } else {
+                    Some(("largest padding", layout.largest_padding(&mut field_size)?))
+                }
+            },
+            |_| None,
+        ),
+        Definition::Adt(it) => render_memory_layout(
+            config.memory_layout,
+            || it.layout(db),
+            |_| None,
+            |_| None,
+            |_| None,
+        ),
         Definition::Variant(it) => render_memory_layout(
             config.memory_layout,
             || it.layout(db),
             |_| None,
+            |_| None,
             |layout| layout.enum_tag_size(),
         ),
-        Definition::TypeAlias(it) => {
-            render_memory_layout(config.memory_layout, || it.ty(db).layout(db), |_| None, |_| None)
-        }
-        Definition::Local(it) => {
-            render_memory_layout(config.memory_layout, || it.ty(db).layout(db), |_| None, |_| None)
-        }
+        Definition::TypeAlias(it) => render_memory_layout(
+            config.memory_layout,
+            || it.ty(db).layout(db),
+            |_| None,
+            |_| None,
+            |_| None,
+        ),
+        Definition::Local(it) => render_memory_layout(
+            config.memory_layout,
+            || it.ty(db).layout(db),
+            |_| None,
+            |_| None,
+            |_| None,
+        ),
         Definition::SelfType(it) => render_memory_layout(
             config.memory_layout,
             || it.self_ty(db).layout(db),
             |_| None,
             |_| None,
+            |_| None,
         ),
         _ => None,
     };
@@ -807,6 +843,7 @@
 
     markup(
         docs.map(Into::into),
+        range_map,
         desc,
         extra.is_empty().not().then_some(extra),
         mod_path,
@@ -1048,9 +1085,13 @@
     if let Some(trait_) = c.fn_trait(sema.db).get_id(sema.db, original.krate(sema.db).into()) {
         push_new_def(hir::Trait::from(trait_).into())
     }
-    if let Some(layout) =
-        render_memory_layout(config.memory_layout, || original.layout(sema.db), |_| None, |_| None)
-    {
+    if let Some(layout) = render_memory_layout(
+        config.memory_layout,
+        || original.layout(sema.db),
+        |_| None,
+        |_| None,
+        |_| None,
+    ) {
         format_to!(markup, "\n___\n{layout}");
     }
     format_to!(markup, "{adjusted}\n\n## Captures\n{}", captures_rendered,);
@@ -1083,11 +1124,12 @@
 
 fn markup(
     docs: Option<String>,
+    range_map: Option<DocsRangeMap>,
     rust: String,
     extra: Option<String>,
     mod_path: Option<String>,
     subst_types: String,
-) -> Markup {
+) -> (Markup, Option<DocsRangeMap>) {
     let mut buf = String::new();
 
     if let Some(mod_path) = mod_path {
@@ -1106,9 +1148,15 @@
     }
 
     if let Some(doc) = docs {
-        format_to!(buf, "\n___\n\n{}", doc);
+        format_to!(buf, "\n___\n\n");
+        let offset = TextSize::new(buf.len() as u32);
+        let buf_range_map = range_map.map(|range_map| range_map.shift_docstring_line_range(offset));
+        format_to!(buf, "{}", doc);
+
+        (buf.into(), buf_range_map)
+    } else {
+        (buf.into(), None)
     }
-    buf.into()
 }
 
 fn find_std_module(
@@ -1128,6 +1176,7 @@
     config: Option<MemoryLayoutHoverConfig>,
     layout: impl FnOnce() -> Result<Layout, LayoutError>,
     offset: impl FnOnce(&Layout) -> Option<u64>,
+    padding: impl FnOnce(&Layout) -> Option<(&str, u64)>,
     tag: impl FnOnce(&Layout) -> Option<usize>,
 ) -> Option<String> {
     let config = config?;
@@ -1185,6 +1234,23 @@
         }
     }
 
+    if let Some(render) = config.padding {
+        if let Some((padding_name, padding)) = padding(&layout) {
+            format_to!(label, "{padding_name} = ");
+            match render {
+                MemoryLayoutHoverRenderKind::Decimal => format_to!(label, "{padding}"),
+                MemoryLayoutHoverRenderKind::Hexadecimal => format_to!(label, "{padding:#X}"),
+                MemoryLayoutHoverRenderKind::Both if padding >= 10 => {
+                    format_to!(label, "{padding} ({padding:#X})")
+                }
+                MemoryLayoutHoverRenderKind::Both => {
+                    format_to!(label, "{padding}")
+                }
+            }
+            format_to!(label, ", ");
+        }
+    }
+
     if config.niches {
         if let Some(niches) = layout.niches() {
             if niches > 1024 {
diff --git a/crates/ide/src/hover/tests.rs b/crates/ide/src/hover/tests.rs
index 7b7eef9..a281a49 100644
--- a/crates/ide/src/hover/tests.rs
+++ b/crates/ide/src/hover/tests.rs
@@ -12,6 +12,7 @@
         size: Some(MemoryLayoutHoverRenderKind::Both),
         offset: Some(MemoryLayoutHoverRenderKind::Both),
         alignment: Some(MemoryLayoutHoverRenderKind::Both),
+        padding: Some(MemoryLayoutHoverRenderKind::Both),
         niches: true,
     }),
     documentation: true,
@@ -933,7 +934,7 @@
 
             ---
 
-            size = 4, align = 4, no Drop
+            size = 4, align = 4, largest padding = 0, no Drop
         "#]],
     );
 }
@@ -959,7 +960,7 @@
 
             ---
 
-            size = 4, align = 4, no Drop
+            size = 4, align = 4, largest padding = 0, no Drop
         "#]],
     );
     check(
@@ -984,7 +985,7 @@
 
             ---
 
-            size = 4, align = 4, no Drop
+            size = 4, align = 4, largest padding = 0, no Drop
         "#]],
     );
 }
@@ -1013,7 +1014,7 @@
 
             ---
 
-            size = 12 (0xC), align = 4, no Drop
+            size = 12 (0xC), align = 4, largest padding = 0, no Drop
         "#]],
     );
     check_hover_fields_limit(
@@ -1036,7 +1037,7 @@
 
             ---
 
-            size = 4, align = 4, no Drop
+            size = 4, align = 4, largest padding = 0, no Drop
         "#]],
     );
     check_hover_fields_limit(
@@ -1062,7 +1063,7 @@
 
             ---
 
-            size = 16 (0x10), align = 4, no Drop
+            size = 16 (0x10), align = 4, largest padding = 0, no Drop
         "#]],
     );
     check_hover_fields_limit(
@@ -1083,7 +1084,7 @@
 
             ---
 
-            size = 12 (0xC), align = 4, no Drop
+            size = 12 (0xC), align = 4, largest padding = 0, no Drop
         "#]],
     );
     check_hover_fields_limit(
@@ -1104,7 +1105,7 @@
 
             ---
 
-            size = 12 (0xC), align = 4, no Drop
+            size = 12 (0xC), align = 4, largest padding = 0, no Drop
         "#]],
     );
 
@@ -3114,7 +3115,7 @@
 
             ---
 
-            size = 0, align = 1, no Drop
+            size = 0, align = 1, largest padding = 0, no Drop
         "#]],
     );
 }
@@ -3148,6 +3149,111 @@
 }
 
 #[test]
+fn test_hover_layout_padding_info() {
+    check(
+        r#"struct $0Foo {
+            x: bool,
+            y: i64,
+            z: u32,
+        }"#,
+        expect![[r#"
+            *Foo*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            struct Foo {
+                x: bool,
+                y: i64,
+                z: u32,
+            }
+            ```
+
+            ---
+
+            size = 16 (0x10), align = 8, largest padding = 3, niches = 254, no Drop
+        "#]],
+    );
+
+    check(
+        r#"#[repr(align(32))]
+        struct $0Foo {
+            x: bool,
+            y: i64,
+            z: u32,
+        }"#,
+        expect![[r#"
+            *Foo*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            struct Foo {
+                x: bool,
+                y: i64,
+                z: u32,
+            }
+            ```
+
+            ---
+
+            size = 32 (0x20), align = 32 (0x20), largest padding = 19 (0x13), niches = 254, no Drop
+        "#]],
+    );
+
+    check(
+        r#"#[repr(C)]
+        struct $0Foo {
+            x: bool,
+            y: i64,
+            z: u32,
+        }"#,
+        expect![[r#"
+            *Foo*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            struct Foo {
+                x: bool,
+                y: i64,
+                z: u32,
+            }
+            ```
+
+            ---
+
+            size = 24 (0x18), align = 8, tail padding = 4, niches = 254, no Drop
+        "#]],
+    );
+
+    check(
+        r#"struct $0Foo(i16, u128, u64)"#,
+        expect![[r#"
+            *Foo*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            struct Foo(i16, u128, u64)
+            ```
+
+            ---
+
+            size = 32 (0x20), align = 8, largest padding = 6, no Drop
+        "#]],
+    );
+}
+
+#[test]
 fn test_hover_no_memory_layout() {
     check_hover_no_memory_layout(
         r#"struct Foo { fiel$0d_a: u8, field_b: i32, field_c: i16 }"#,
@@ -7375,6 +7481,128 @@
 }
 
 #[test]
+fn hover_intra_inner_attr() {
+    check(
+        r#"
+/// outer comment for [`Foo`]
+#[doc = "Doc outer comment for [`Foo`]"]
+pub fn Foo {
+    //! inner comment for [`Foo$0`]
+    #![doc = "Doc inner comment for [`Foo`]"]
+}
+"#,
+        expect![[r#"
+            *[`Foo`]*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            pub fn Foo()
+            ```
+
+            ---
+
+            outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            Doc outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            inner comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            Doc inner comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+        "#]],
+    );
+
+    check(
+        r#"
+/// outer comment for [`Foo`]
+#[doc = "Doc outer comment for [`Foo`]"]
+pub mod Foo {
+    //! inner comment for [`super::Foo$0`]
+    #![doc = "Doc inner comment for [`super::Foo`]"]
+}
+"#,
+        expect![[r#"
+            *[`super::Foo`]*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            pub mod Foo
+            ```
+
+            ---
+
+            outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            Doc outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            inner comment for [`super::Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            Doc inner comment for [`super::Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+        "#]],
+    );
+}
+
+#[test]
+fn hover_intra_outer_attr() {
+    check(
+        r#"
+/// outer comment for [`Foo$0`]
+#[doc = "Doc outer comment for [`Foo`]"]
+pub fn Foo() {
+    //! inner comment for [`Foo`]
+    #![doc = "Doc inner comment for [`Foo`]"]
+}
+"#,
+        expect![[r#"
+            *[`Foo`]*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            pub fn Foo()
+            ```
+
+            ---
+
+            outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            Doc outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            inner comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            Doc inner comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+        "#]],
+    );
+
+    check(
+        r#"
+/// outer comment for [`Foo$0`]
+#[doc = "Doc outer comment for [`Foo`]"]
+pub mod Foo {
+    //! inner comment for [`super::Foo`]
+    #![doc = "Doc inner comment for [`super::Foo`]"]
+}
+"#,
+        expect![[r#"
+            *[`Foo`]*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            pub mod Foo
+            ```
+
+            ---
+
+            outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            Doc outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            inner comment for [`super::Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            Doc inner comment for [`super::Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+        "#]],
+    );
+}
+
+#[test]
 fn hover_intra_generics() {
     check(
         r#"
@@ -9076,7 +9304,7 @@
 
             ---
 
-            size = 16 (0x10), align = 8, niches = 1, no Drop
+            size = 16 (0x10), align = 8, largest padding = 0, niches = 1, no Drop
         "#]],
     )
 }
@@ -10437,7 +10665,7 @@
 
             ---
 
-            size = 4, align = 4, needs Drop
+            size = 4, align = 4, largest padding = 0, needs Drop
         "#]],
     );
     check(
diff --git a/crates/ide/src/lib.rs b/crates/ide/src/lib.rs
index aa525a8..d649dff 100644
--- a/crates/ide/src/lib.rs
+++ b/crates/ide/src/lib.rs
@@ -62,7 +62,7 @@
 
 use cfg::CfgOptions;
 use fetch_crates::CrateInfo;
-use hir::{ChangeWithProcMacros, EditionedFileId, sym};
+use hir::{ChangeWithProcMacros, EditionedFileId, crate_def_map, sym};
 use ide_db::{
     FxHashMap, FxIndexSet, LineIndexDatabase,
     base_db::{
@@ -627,7 +627,7 @@
 
     /// Returns true if this crate has `no_std` or `no_core` specified.
     pub fn is_crate_no_std(&self, crate_id: Crate) -> Cancellable<bool> {
-        self.with_db(|db| hir::db::DefDatabase::crate_def_map(db, crate_id).is_no_std())
+        self.with_db(|db| crate_def_map(db, crate_id).is_no_std())
     }
 
     /// Returns the root file of the given crate.
diff --git a/crates/ide/src/parent_module.rs b/crates/ide/src/parent_module.rs
index 6dc01c4..50219ce 100644
--- a/crates/ide/src/parent_module.rs
+++ b/crates/ide/src/parent_module.rs
@@ -1,4 +1,4 @@
-use hir::{Semantics, db::DefDatabase};
+use hir::{Semantics, crate_def_map};
 use ide_db::{
     FileId, FilePosition, RootDatabase,
     base_db::{Crate, RootQueryDb},
@@ -58,7 +58,7 @@
         .iter()
         .copied()
         .filter(|&crate_id| {
-            db.crate_def_map(crate_id).modules_for_file(db, file_id).next().is_some()
+            crate_def_map(db, crate_id).modules_for_file(db, file_id).next().is_some()
         })
         .sorted()
         .collect()
diff --git a/crates/ide/src/syntax_highlighting/inject.rs b/crates/ide/src/syntax_highlighting/inject.rs
index 0998e14..7f5c2c1 100644
--- a/crates/ide/src/syntax_highlighting/inject.rs
+++ b/crates/ide/src/syntax_highlighting/inject.rs
@@ -129,11 +129,18 @@
         extract_definitions_from_docs(&docs)
             .into_iter()
             .filter_map(|(range, link, ns)| {
-                doc_mapping.map(range).filter(|mapping| mapping.file_id == src_file_id).and_then(
-                    |InFile { value: mapped_range, .. }| {
-                        Some(mapped_range).zip(resolve_doc_path_for_def(sema.db, def, &link, ns))
-                    },
-                )
+                doc_mapping
+                    .map(range)
+                    .filter(|(mapping, _)| mapping.file_id == src_file_id)
+                    .and_then(|(InFile { value: mapped_range, .. }, attr_id)| {
+                        Some(mapped_range).zip(resolve_doc_path_for_def(
+                            sema.db,
+                            def,
+                            &link,
+                            ns,
+                            attr_id.is_inner_attr(),
+                        ))
+                    })
             })
             .for_each(|(range, def)| {
                 hl.add(HlRange {
diff --git a/crates/intern/src/symbol/symbols.rs b/crates/intern/src/symbol/symbols.rs
index abde48d..fc922dd 100644
--- a/crates/intern/src/symbol/symbols.rs
+++ b/crates/intern/src/symbol/symbols.rs
@@ -164,7 +164,6 @@
     completion,
     compile_error,
     concat_bytes,
-    concat_idents,
     concat,
     const_format_args,
     const_panic_fmt,
diff --git a/crates/load-cargo/src/lib.rs b/crates/load-cargo/src/lib.rs
index 2686a75..30e2d54 100644
--- a/crates/load-cargo/src/lib.rs
+++ b/crates/load-cargo/src/lib.rs
@@ -512,10 +512,6 @@
             Err(err) => Err(ProcMacroExpansionError::System(err.to_string())),
         }
     }
-
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
-        other.as_any().downcast_ref::<Self>().is_some_and(|other| self == other)
-    }
 }
 
 #[cfg(test)]
diff --git a/crates/mbe/src/tests.rs b/crates/mbe/src/tests.rs
index a5672e4..3369dff 100644
--- a/crates/mbe/src/tests.rs
+++ b/crates/mbe/src/tests.rs
@@ -356,3 +356,120 @@
             ;"#]],
     );
 }
+
+#[test]
+fn minus_belongs_to_literal() {
+    let decl = r#"
+(-1) => {-1};
+(- 2) => {- 2};
+(- 3.0) => {- 3.0};
+(@$lit:literal) => {$lit}
+"#;
+    let check = |args, expect| check(Edition::CURRENT, Edition::CURRENT, decl, args, expect);
+    check(
+        "-1",
+        expect![[r#"
+            SUBTREE $$ 1:0@0..2#ROOT2024 1:0@0..2#ROOT2024
+              PUNCH   - [alone] 0:0@10..11#ROOT2024
+              LITERAL Integer 1 0:0@11..12#ROOT2024
+
+            -1"#]],
+    );
+    check(
+        "- 1",
+        expect![[r#"
+            SUBTREE $$ 1:0@0..3#ROOT2024 1:0@0..3#ROOT2024
+              PUNCH   - [alone] 0:0@10..11#ROOT2024
+              LITERAL Integer 1 0:0@11..12#ROOT2024
+
+            -1"#]],
+    );
+    check(
+        "-2",
+        expect![[r#"
+            SUBTREE $$ 1:0@0..2#ROOT2024 1:0@0..2#ROOT2024
+              PUNCH   - [alone] 0:0@25..26#ROOT2024
+              LITERAL Integer 2 0:0@27..28#ROOT2024
+
+            -2"#]],
+    );
+    check(
+        "- 2",
+        expect![[r#"
+            SUBTREE $$ 1:0@0..3#ROOT2024 1:0@0..3#ROOT2024
+              PUNCH   - [alone] 0:0@25..26#ROOT2024
+              LITERAL Integer 2 0:0@27..28#ROOT2024
+
+            -2"#]],
+    );
+    check(
+        "-3.0",
+        expect![[r#"
+            SUBTREE $$ 1:0@0..4#ROOT2024 1:0@0..4#ROOT2024
+              PUNCH   - [alone] 0:0@43..44#ROOT2024
+              LITERAL Float 3.0 0:0@45..48#ROOT2024
+
+            -3.0"#]],
+    );
+    check(
+        "- 3.0",
+        expect![[r#"
+            SUBTREE $$ 1:0@0..5#ROOT2024 1:0@0..5#ROOT2024
+              PUNCH   - [alone] 0:0@43..44#ROOT2024
+              LITERAL Float 3.0 0:0@45..48#ROOT2024
+
+            -3.0"#]],
+    );
+    check(
+        "@1",
+        expect![[r#"
+            SUBTREE $$ 1:0@0..2#ROOT2024 1:0@0..2#ROOT2024
+              LITERAL Integer 1 1:0@1..2#ROOT2024
+
+            1"#]],
+    );
+    check(
+        "@-1",
+        expect![[r#"
+            SUBTREE $$ 1:0@0..3#ROOT2024 1:0@0..3#ROOT2024
+              PUNCH   - [alone] 1:0@1..2#ROOT2024
+              LITERAL Integer 1 1:0@2..3#ROOT2024
+
+            -1"#]],
+    );
+    check(
+        "@1.0",
+        expect![[r#"
+            SUBTREE $$ 1:0@0..4#ROOT2024 1:0@0..4#ROOT2024
+              LITERAL Float 1.0 1:0@1..4#ROOT2024
+
+            1.0"#]],
+    );
+    check(
+        "@-1.0",
+        expect![[r#"
+            SUBTREE $$ 1:0@0..5#ROOT2024 1:0@0..5#ROOT2024
+              PUNCH   - [alone] 1:0@1..2#ROOT2024
+              LITERAL Float 1.0 1:0@2..5#ROOT2024
+
+            -1.0"#]],
+    );
+    check(
+        "@--1.0",
+        expect![[r#"
+            ExpandError {
+                inner: (
+                    1:0@1..2#ROOT2024,
+                    BindingError(
+                        "expected literal",
+                    ),
+                ),
+            }
+
+            SUBTREE $$ 1:0@0..6#ROOT2024 1:0@0..6#ROOT2024
+              PUNCH   - [joint] 1:0@1..2#ROOT2024
+              PUNCH   - [alone] 1:0@2..3#ROOT2024
+
+            --"#]],
+    );
+}
diff --git a/crates/parser/src/grammar/expressions/atom.rs b/crates/parser/src/grammar/expressions/atom.rs
index 5faf6fc..8cc332d 100644
--- a/crates/parser/src/grammar/expressions/atom.rs
+++ b/crates/parser/src/grammar/expressions/atom.rs
@@ -381,10 +381,14 @@
             op.complete(p, ASM_REG_OPERAND);
             op_n.complete(p, ASM_OPERAND_NAMED);
         } else if p.eat_contextual_kw(T![label]) {
+            // test asm_label
+            // fn foo() {
+            //     builtin#asm("", label {});
+            // }
             dir_spec.abandon(p);
             block_expr(p);
-            op.complete(p, ASM_OPERAND_NAMED);
-            op_n.complete(p, ASM_LABEL);
+            op.complete(p, ASM_LABEL);
+            op_n.complete(p, ASM_OPERAND_NAMED);
         } else if p.eat(T![const]) {
             dir_spec.abandon(p);
             expr(p);
diff --git a/crates/parser/src/lexed_str.rs b/crates/parser/src/lexed_str.rs
index 0a5c16d..0fa9a26 100644
--- a/crates/parser/src/lexed_str.rs
+++ b/crates/parser/src/lexed_str.rs
@@ -179,7 +179,10 @@
                     COMMENT
                 }
 
-                rustc_lexer::TokenKind::Frontmatter  { has_invalid_preceding_whitespace, invalid_infostring } => {
+                rustc_lexer::TokenKind::Frontmatter {
+                    has_invalid_preceding_whitespace,
+                    invalid_infostring,
+                } => {
                     if *has_invalid_preceding_whitespace {
                         err = "invalid preceding whitespace for frontmatter opening"
                     } else if *invalid_infostring {
diff --git a/crates/parser/test_data/generated/runner.rs b/crates/parser/test_data/generated/runner.rs
index 24db947..030d8e0 100644
--- a/crates/parser/test_data/generated/runner.rs
+++ b/crates/parser/test_data/generated/runner.rs
@@ -21,6 +21,8 @@
     #[test]
     fn asm_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/asm_expr.rs"); }
     #[test]
+    fn asm_label() { run_and_expect_no_errors("test_data/parser/inline/ok/asm_label.rs"); }
+    #[test]
     fn assoc_const_eq() {
         run_and_expect_no_errors("test_data/parser/inline/ok/assoc_const_eq.rs");
     }
diff --git a/crates/parser/test_data/parser/inline/ok/asm_label.rast b/crates/parser/test_data/parser/inline/ok/asm_label.rast
new file mode 100644
index 0000000..38999c9
--- /dev/null
+++ b/crates/parser/test_data/parser/inline/ok/asm_label.rast
@@ -0,0 +1,37 @@
+SOURCE_FILE
+  FN
+    FN_KW "fn"
+    WHITESPACE " "
+    NAME
+      IDENT "foo"
+    PARAM_LIST
+      L_PAREN "("
+      R_PAREN ")"
+    WHITESPACE " "
+    BLOCK_EXPR
+      STMT_LIST
+        L_CURLY "{"
+        WHITESPACE "\n    "
+        EXPR_STMT
+          ASM_EXPR
+            BUILTIN_KW "builtin"
+            POUND "#"
+            ASM_KW "asm"
+            L_PAREN "("
+            LITERAL
+              STRING "\"\""
+            COMMA ","
+            WHITESPACE " "
+            ASM_OPERAND_NAMED
+              ASM_LABEL
+                LABEL_KW "label"
+                WHITESPACE " "
+                BLOCK_EXPR
+                  STMT_LIST
+                    L_CURLY "{"
+                    R_CURLY "}"
+            R_PAREN ")"
+          SEMICOLON ";"
+        WHITESPACE "\n"
+        R_CURLY "}"
+  WHITESPACE "\n"
diff --git a/crates/parser/test_data/parser/inline/ok/asm_label.rs b/crates/parser/test_data/parser/inline/ok/asm_label.rs
new file mode 100644
index 0000000..996c1c8
--- /dev/null
+++ b/crates/parser/test_data/parser/inline/ok/asm_label.rs
@@ -0,0 +1,3 @@
+fn foo() {
+    builtin#asm("", label {});
+}
diff --git a/crates/proc-macro-srv/proc-macro-test/imp/src/lib.rs b/crates/proc-macro-srv/proc-macro-test/imp/src/lib.rs
index dfdbb4c..6820e4b 100644
--- a/crates/proc-macro-srv/proc-macro-test/imp/src/lib.rs
+++ b/crates/proc-macro-srv/proc-macro-test/imp/src/lib.rs
@@ -31,12 +31,17 @@
         TokenTree::from(Literal::byte_string(b"byte_string")),
         TokenTree::from(Literal::character('c')),
         TokenTree::from(Literal::string("string")),
+        TokenTree::from(Literal::c_string(c"cstring")),
         // as of 2022-07-21, there's no method on `Literal` to build a raw
         // string or a raw byte string
         TokenTree::from(Literal::f64_suffixed(3.14)),
+        TokenTree::from(Literal::f64_suffixed(-3.14)),
         TokenTree::from(Literal::f64_unsuffixed(3.14)),
+        TokenTree::from(Literal::f64_unsuffixed(-3.14)),
         TokenTree::from(Literal::i64_suffixed(123)),
+        TokenTree::from(Literal::i64_suffixed(-123)),
         TokenTree::from(Literal::i64_unsuffixed(123)),
+        TokenTree::from(Literal::i64_unsuffixed(-123)),
     ];
     TokenStream::from_iter(trees)
 }
diff --git a/crates/proc-macro-srv/src/server_impl.rs b/crates/proc-macro-srv/src/server_impl.rs
index 3d99942..11dbd92 100644
--- a/crates/proc-macro-srv/src/server_impl.rs
+++ b/crates/proc-macro-srv/src/server_impl.rs
@@ -16,9 +16,8 @@
 pub use token_stream::TokenStream;
 
 pub mod rust_analyzer_span;
-// mod symbol;
 pub mod token_id;
-// pub use symbol::*;
+
 use tt::Spacing;
 
 #[derive(Clone)]
diff --git a/crates/proc-macro-srv/src/server_impl/rust_analyzer_span.rs b/crates/proc-macro-srv/src/server_impl/rust_analyzer_span.rs
index 47555a5..e0c6e68 100644
--- a/crates/proc-macro-srv/src/server_impl/rust_analyzer_span.rs
+++ b/crates/proc-macro-srv/src/server_impl/rust_analyzer_span.rs
@@ -168,16 +168,38 @@
             }
 
             bridge::TokenTree::Literal(literal) => {
-                let literal = tt::Literal {
-                    symbol: literal.symbol,
-                    suffix: literal.suffix,
-                    span: literal.span,
-                    kind: literal_kind_to_internal(literal.kind),
-                };
+                let token_trees =
+                    if let Some((_minus, symbol)) = literal.symbol.as_str().split_once('-') {
+                        let punct = tt::Punct {
+                            spacing: tt::Spacing::Alone,
+                            span: literal.span,
+                            char: '-' as char,
+                        };
+                        let leaf: tt::Leaf = tt::Leaf::from(punct);
+                        let minus_tree = tt::TokenTree::from(leaf);
 
-                let leaf: tt::Leaf = tt::Leaf::from(literal);
-                let tree = tt::TokenTree::from(leaf);
-                TokenStream { token_trees: vec![tree] }
+                        let literal = tt::Literal {
+                            symbol: Symbol::intern(symbol),
+                            suffix: literal.suffix,
+                            span: literal.span,
+                            kind: literal_kind_to_internal(literal.kind),
+                        };
+                        let leaf: tt::Leaf = tt::Leaf::from(literal);
+                        let tree = tt::TokenTree::from(leaf);
+                        vec![minus_tree, tree]
+                    } else {
+                        let literal = tt::Literal {
+                            symbol: literal.symbol,
+                            suffix: literal.suffix,
+                            span: literal.span,
+                            kind: literal_kind_to_internal(literal.kind),
+                        };
+
+                        let leaf: tt::Leaf = tt::Leaf::from(literal);
+                        let tree = tt::TokenTree::from(leaf);
+                        vec![tree]
+                    };
+                TokenStream { token_trees }
             }
 
             bridge::TokenTree::Punct(p) => {
@@ -236,7 +258,9 @@
         &mut self,
         stream: Self::TokenStream,
     ) -> Vec<bridge::TokenTree<Self::TokenStream, Self::Span, Self::Symbol>> {
-        stream.into_bridge()
+        stream.into_bridge(&mut |first, second| {
+            server::Span::join(self, first, second).unwrap_or(first)
+        })
     }
 }
 
diff --git a/crates/proc-macro-srv/src/server_impl/symbol.rs b/crates/proc-macro-srv/src/server_impl/symbol.rs
deleted file mode 100644
index 6863ce9..0000000
--- a/crates/proc-macro-srv/src/server_impl/symbol.rs
+++ /dev/null
@@ -1,47 +0,0 @@
-//! Symbol interner for proc-macro-srv
-
-use std::{cell::RefCell, collections::HashMap, thread::LocalKey};
-
-thread_local! {
-    pub(crate) static SYMBOL_INTERNER: RefCell<SymbolInterner> = Default::default();
-}
-
-// ID for an interned symbol.
-#[derive(Hash, Eq, PartialEq, Copy, Clone)]
-pub struct Symbol(u32);
-
-pub(crate) type SymbolInternerRef = &'static LocalKey<RefCell<SymbolInterner>>;
-
-impl Symbol {
-    pub(super) fn intern(interner: SymbolInternerRef, data: &str) -> Symbol {
-        interner.with(|i| i.borrow_mut().intern(data))
-    }
-
-    pub(super) fn text(&self, interner: SymbolInternerRef) -> SmolStr {
-        interner.with(|i| i.borrow().get(self).clone())
-    }
-}
-
-#[derive(Default)]
-pub(crate) struct SymbolInterner {
-    idents: HashMap<SmolStr, u32>,
-    ident_data: Vec<SmolStr>,
-}
-
-impl SymbolInterner {
-    fn intern(&mut self, data: &str) -> Symbol {
-        if let Some(index) = self.idents.get(data) {
-            return Symbol(*index);
-        }
-
-        let index = self.idents.len() as u32;
-        let data = SmolStr::from(data);
-        self.ident_data.push(data.clone());
-        self.idents.insert(data, index);
-        Symbol(index)
-    }
-
-    fn get(&self, sym: &Symbol) -> &SmolStr {
-        &self.ident_data[sym.0 as usize]
-    }
-}
diff --git a/crates/proc-macro-srv/src/server_impl/token_id.rs b/crates/proc-macro-srv/src/server_impl/token_id.rs
index c002be4..d55b269 100644
--- a/crates/proc-macro-srv/src/server_impl/token_id.rs
+++ b/crates/proc-macro-srv/src/server_impl/token_id.rs
@@ -153,16 +153,38 @@
             }
 
             bridge::TokenTree::Literal(literal) => {
-                let literal = Literal {
-                    symbol: literal.symbol,
-                    suffix: literal.suffix,
-                    span: literal.span,
-                    kind: literal_kind_to_internal(literal.kind),
-                };
+                let token_trees =
+                    if let Some((_minus, symbol)) = literal.symbol.as_str().split_once('-') {
+                        let punct = tt::Punct {
+                            spacing: tt::Spacing::Alone,
+                            span: literal.span,
+                            char: '-' as char,
+                        };
+                        let leaf: tt::Leaf = tt::Leaf::from(punct);
+                        let minus_tree = tt::TokenTree::from(leaf);
 
-                let leaf = tt::Leaf::from(literal);
-                let tree = TokenTree::from(leaf);
-                TokenStream { token_trees: vec![tree] }
+                        let literal = Literal {
+                            symbol: Symbol::intern(symbol),
+                            suffix: literal.suffix,
+                            span: literal.span,
+                            kind: literal_kind_to_internal(literal.kind),
+                        };
+                        let leaf: tt::Leaf = tt::Leaf::from(literal);
+                        let tree = tt::TokenTree::from(leaf);
+                        vec![minus_tree, tree]
+                    } else {
+                        let literal = Literal {
+                            symbol: literal.symbol,
+                            suffix: literal.suffix,
+                            span: literal.span,
+                            kind: literal_kind_to_internal(literal.kind),
+                        };
+
+                        let leaf: tt::Leaf = tt::Leaf::from(literal);
+                        let tree = tt::TokenTree::from(leaf);
+                        vec![tree]
+                    };
+                TokenStream { token_trees }
             }
 
             bridge::TokenTree::Punct(p) => {
@@ -216,7 +238,8 @@
         &mut self,
         stream: Self::TokenStream,
     ) -> Vec<bridge::TokenTree<Self::TokenStream, Self::Span, Self::Symbol>> {
-        stream.into_bridge()
+        // Can't join with `TokenId`.
+        stream.into_bridge(&mut |first, _second| first)
     }
 }
 
diff --git a/crates/proc-macro-srv/src/server_impl/token_stream.rs b/crates/proc-macro-srv/src/server_impl/token_stream.rs
index 4946a4f..c5019a5 100644
--- a/crates/proc-macro-srv/src/server_impl/token_stream.rs
+++ b/crates/proc-macro-srv/src/server_impl/token_stream.rs
@@ -56,7 +56,10 @@
         self.token_trees.is_empty()
     }
 
-    pub(crate) fn into_bridge(self) -> Vec<bridge::TokenTree<Self, S, intern::Symbol>> {
+    pub(crate) fn into_bridge(
+        self,
+        join_spans: &mut dyn FnMut(S, S) -> S,
+    ) -> Vec<bridge::TokenTree<Self, S, intern::Symbol>> {
         let mut result = Vec::new();
         let mut iter = self.token_trees.into_iter();
         while let Some(tree) = iter.next() {
@@ -68,6 +71,11 @@
                         span: ident.span,
                     }))
                 }
+                // Note, we do not have to assemble our `-` punct and literal split into a single
+                // negative bridge literal here. As the proc-macro docs state
+                // > Literals created from negative numbers might not survive round-trips through
+                // > TokenStream or strings and may be broken into two tokens (- and positive
+                // > literal).
                 tt::TokenTree::Leaf(tt::Leaf::Literal(lit)) => {
                     result.push(bridge::TokenTree::Literal(bridge::Literal {
                         span: lit.span,
@@ -93,7 +101,11 @@
                                 token_trees: iter.by_ref().take(subtree.usize_len()).collect(),
                             })
                         },
-                        span: bridge::DelimSpan::from_single(subtree.delimiter.open),
+                        span: bridge::DelimSpan {
+                            open: subtree.delimiter.open,
+                            close: subtree.delimiter.close,
+                            entire: join_spans(subtree.delimiter.open, subtree.delimiter.close),
+                        },
                     }))
                 }
             }
diff --git a/crates/proc-macro-srv/src/tests/mod.rs b/crates/proc-macro-srv/src/tests/mod.rs
index a81fea7..3a6ce63 100644
--- a/crates/proc-macro-srv/src/tests/mod.rs
+++ b/crates/proc-macro-srv/src/tests/mod.rs
@@ -11,8 +11,24 @@
     assert_expand(
         "DeriveEmpty",
         r#"struct S;"#,
-        expect!["SUBTREE $$ 1 1"],
-        expect!["SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024"],
+        expect![[r#"
+            SUBTREE $$ 1 1
+              IDENT   struct 1
+              IDENT   S 1
+              PUNCH   ; [alone] 1
+
+
+
+            SUBTREE $$ 1 1"#]],
+        expect![[r#"
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              IDENT   struct 42:2@0..6#ROOT2024
+              IDENT   S 42:2@7..8#ROOT2024
+              PUNCH   ; [alone] 42:2@8..9#ROOT2024
+
+
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024"#]],
     );
 }
 
@@ -23,6 +39,13 @@
         r#"struct S;"#,
         expect![[r#"
             SUBTREE $$ 1 1
+              IDENT   struct 1
+              IDENT   S 1
+              PUNCH   ; [alone] 1
+
+
+
+            SUBTREE $$ 1 1
               IDENT   compile_error 1
               PUNCH   ! [alone] 1
               SUBTREE () 1 1
@@ -30,6 +53,13 @@
               PUNCH   ; [alone] 1"#]],
         expect![[r#"
             SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              IDENT   struct 42:2@0..6#ROOT2024
+              IDENT   S 42:2@7..8#ROOT2024
+              PUNCH   ; [alone] 42:2@8..9#ROOT2024
+
+
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
               IDENT   compile_error 42:2@0..100#ROOT2024
               PUNCH   ! [alone] 42:2@0..100#ROOT2024
               SUBTREE () 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
@@ -51,6 +81,17 @@
               PUNCH   , [alone] 1
               LITERAL Integer 1 1
               PUNCH   , [alone] 1
+              SUBTREE [] 1 1
+
+
+
+            SUBTREE $$ 1 1
+              IDENT   ident 1
+              PUNCH   , [alone] 1
+              LITERAL Integer 0 1
+              PUNCH   , [alone] 1
+              LITERAL Integer 1 1
+              PUNCH   , [alone] 1
               SUBTREE [] 1 1"#]],
         expect![[r#"
             SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
@@ -60,6 +101,17 @@
               PUNCH   , [alone] 42:2@8..9#ROOT2024
               LITERAL Integer 1 42:2@10..11#ROOT2024
               PUNCH   , [alone] 42:2@11..12#ROOT2024
+              SUBTREE [] 42:2@13..14#ROOT2024 42:2@14..15#ROOT2024
+
+
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              IDENT   ident 42:2@0..5#ROOT2024
+              PUNCH   , [alone] 42:2@5..6#ROOT2024
+              LITERAL Integer 0 42:2@7..8#ROOT2024
+              PUNCH   , [alone] 42:2@8..9#ROOT2024
+              LITERAL Integer 1 42:2@10..11#ROOT2024
+              PUNCH   , [alone] 42:2@11..12#ROOT2024
               SUBTREE [] 42:2@13..14#ROOT2024 42:2@14..15#ROOT2024"#]],
     );
 }
@@ -73,12 +125,26 @@
             SUBTREE $$ 1 1
               IDENT   ident 1
               PUNCH   , [alone] 1
+              SUBTREE [] 1 1
+
+
+
+            SUBTREE $$ 1 1
+              IDENT   ident 1
+              PUNCH   , [alone] 1
               SUBTREE [] 1 1"#]],
         expect![[r#"
             SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
               IDENT   ident 42:2@0..5#ROOT2024
               PUNCH   , [alone] 42:2@5..6#ROOT2024
-              SUBTREE [] 42:2@7..8#ROOT2024 42:2@7..8#ROOT2024"#]],
+              SUBTREE [] 42:2@7..8#ROOT2024 42:2@8..9#ROOT2024
+
+
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              IDENT   ident 42:2@0..5#ROOT2024
+              PUNCH   , [alone] 42:2@5..6#ROOT2024
+              SUBTREE [] 42:2@7..9#ROOT2024 42:2@7..9#ROOT2024"#]],
     );
 }
 
@@ -89,9 +155,19 @@
         "r#async",
         expect![[r#"
             SUBTREE $$ 1 1
+              IDENT   r#async 1
+
+
+
+            SUBTREE $$ 1 1
               IDENT   r#async 1"#]],
         expect![[r#"
             SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              IDENT   r#async 42:2@0..7#ROOT2024
+
+
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
               IDENT   r#async 42:2@0..7#ROOT2024"#]],
     );
 }
@@ -103,9 +179,21 @@
         "foo     bar",
         expect![[r#"
             SUBTREE $$ 1 1
+              IDENT   foo 1
+              IDENT   bar 1
+
+
+
+            SUBTREE $$ 1 1
               IDENT   r#joined 1"#]],
         expect![[r#"
             SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              IDENT   foo 42:2@0..3#ROOT2024
+              IDENT   bar 42:2@8..11#ROOT2024
+
+
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
               IDENT   r#joined 42:2@0..11#ROOT2024"#]],
     );
 }
@@ -117,11 +205,25 @@
         "set_def_site resolved_at_def_site start_span",
         expect![[r#"
             SUBTREE $$ 1 1
+              IDENT   set_def_site 1
+              IDENT   resolved_at_def_site 1
+              IDENT   start_span 1
+
+
+
+            SUBTREE $$ 1 1
               IDENT   set_def_site 0
               IDENT   resolved_at_def_site 1
               IDENT   start_span 1"#]],
         expect![[r#"
             SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              IDENT   set_def_site 42:2@0..12#ROOT2024
+              IDENT   resolved_at_def_site 42:2@13..33#ROOT2024
+              IDENT   start_span 42:2@34..44#ROOT2024
+
+
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
               IDENT   set_def_site 41:1@0..150#ROOT2024
               IDENT   resolved_at_def_site 42:2@13..33#ROOT2024
               IDENT   start_span 42:2@34..34#ROOT2024"#]],
@@ -135,21 +237,47 @@
         r#""#,
         expect![[r#"
             SUBTREE $$ 1 1
+
+
+
+            SUBTREE $$ 1 1
               LITERAL ByteStr byte_string 1
               LITERAL Char c 1
               LITERAL Str string 1
+              LITERAL CStr cstring 1
+              LITERAL Float 3.14f64 1
+              PUNCH   - [alone] 1
               LITERAL Float 3.14f64 1
               LITERAL Float 3.14 1
+              PUNCH   - [alone] 1
+              LITERAL Float 3.14 1
               LITERAL Integer 123i64 1
+              PUNCH   - [alone] 1
+              LITERAL Integer 123i64 1
+              LITERAL Integer 123 1
+              PUNCH   - [alone] 1
               LITERAL Integer 123 1"#]],
         expect![[r#"
             SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+
+
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
               LITERAL ByteStr byte_string 42:2@0..100#ROOT2024
               LITERAL Char c 42:2@0..100#ROOT2024
               LITERAL Str string 42:2@0..100#ROOT2024
+              LITERAL CStr cstring 42:2@0..100#ROOT2024
+              LITERAL Float 3.14f64 42:2@0..100#ROOT2024
+              PUNCH   - [alone] 42:2@0..100#ROOT2024
               LITERAL Float 3.14f64 42:2@0..100#ROOT2024
               LITERAL Float 3.14 42:2@0..100#ROOT2024
+              PUNCH   - [alone] 42:2@0..100#ROOT2024
+              LITERAL Float 3.14 42:2@0..100#ROOT2024
               LITERAL Integer 123i64 42:2@0..100#ROOT2024
+              PUNCH   - [alone] 42:2@0..100#ROOT2024
+              LITERAL Integer 123i64 42:2@0..100#ROOT2024
+              LITERAL Integer 123 42:2@0..100#ROOT2024
+              PUNCH   - [alone] 42:2@0..100#ROOT2024
               LITERAL Integer 123 42:2@0..100#ROOT2024"#]],
     );
 }
@@ -161,10 +289,18 @@
         r#""#,
         expect![[r#"
             SUBTREE $$ 1 1
+
+
+
+            SUBTREE $$ 1 1
               IDENT   standard 1
               IDENT   r#raw 1"#]],
         expect![[r#"
             SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+
+
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
               IDENT   standard 42:2@0..100#ROOT2024
               IDENT   r#raw 42:2@0..100#ROOT2024"#]],
     );
@@ -196,6 +332,30 @@
               PUNCH   , [alone] 1
               LITERAL Byte b 1
               PUNCH   , [alone] 1
+              LITERAL CStr null 1
+
+
+
+            SUBTREE $$ 1 1
+              LITERAL Integer 1u16 1
+              PUNCH   , [alone] 1
+              LITERAL Integer 2_u32 1
+              PUNCH   , [alone] 1
+              PUNCH   - [alone] 1
+              LITERAL Integer 4i64 1
+              PUNCH   , [alone] 1
+              LITERAL Float 3.14f32 1
+              PUNCH   , [alone] 1
+              LITERAL Str hello bridge 1
+              PUNCH   , [alone] 1
+              LITERAL Str suffixedsuffix 1
+              PUNCH   , [alone] 1
+              LITERAL StrRaw(2) raw 1
+              PUNCH   , [alone] 1
+              LITERAL Char a 1
+              PUNCH   , [alone] 1
+              LITERAL Byte b 1
+              PUNCH   , [alone] 1
               LITERAL CStr null 1"#]],
         expect![[r#"
             SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
@@ -218,11 +378,99 @@
               PUNCH   , [alone] 42:2@78..79#ROOT2024
               LITERAL Byte b 42:2@80..84#ROOT2024
               PUNCH   , [alone] 42:2@84..85#ROOT2024
+              LITERAL CStr null 42:2@86..93#ROOT2024
+
+
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              LITERAL Integer 1u16 42:2@0..4#ROOT2024
+              PUNCH   , [alone] 42:2@4..5#ROOT2024
+              LITERAL Integer 2_u32 42:2@6..11#ROOT2024
+              PUNCH   , [alone] 42:2@11..12#ROOT2024
+              PUNCH   - [alone] 42:2@13..14#ROOT2024
+              LITERAL Integer 4i64 42:2@14..18#ROOT2024
+              PUNCH   , [alone] 42:2@18..19#ROOT2024
+              LITERAL Float 3.14f32 42:2@20..27#ROOT2024
+              PUNCH   , [alone] 42:2@27..28#ROOT2024
+              LITERAL Str hello bridge 42:2@29..43#ROOT2024
+              PUNCH   , [alone] 42:2@43..44#ROOT2024
+              LITERAL Str suffixedsuffix 42:2@45..61#ROOT2024
+              PUNCH   , [alone] 42:2@61..62#ROOT2024
+              LITERAL StrRaw(2) raw 42:2@63..73#ROOT2024
+              PUNCH   , [alone] 42:2@73..74#ROOT2024
+              LITERAL Char a 42:2@75..78#ROOT2024
+              PUNCH   , [alone] 42:2@78..79#ROOT2024
+              LITERAL Byte b 42:2@80..84#ROOT2024
+              PUNCH   , [alone] 42:2@84..85#ROOT2024
               LITERAL CStr null 42:2@86..93#ROOT2024"#]],
     );
 }
 
 #[test]
+fn test_fn_like_macro_negative_literals() {
+    assert_expand(
+        "fn_like_clone_tokens",
+        r###"-1u16, - 2_u32, -3.14f32, - 2.7"###,
+        expect![[r#"
+            SUBTREE $$ 1 1
+              PUNCH   - [alone] 1
+              LITERAL Integer 1u16 1
+              PUNCH   , [alone] 1
+              PUNCH   - [alone] 1
+              LITERAL Integer 2_u32 1
+              PUNCH   , [alone] 1
+              PUNCH   - [alone] 1
+              LITERAL Float 3.14f32 1
+              PUNCH   , [alone] 1
+              PUNCH   - [alone] 1
+              LITERAL Float 2.7 1
+
+
+
+            SUBTREE $$ 1 1
+              PUNCH   - [alone] 1
+              LITERAL Integer 1u16 1
+              PUNCH   , [alone] 1
+              PUNCH   - [alone] 1
+              LITERAL Integer 2_u32 1
+              PUNCH   , [alone] 1
+              PUNCH   - [alone] 1
+              LITERAL Float 3.14f32 1
+              PUNCH   , [alone] 1
+              PUNCH   - [alone] 1
+              LITERAL Float 2.7 1"#]],
+        expect![[r#"
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              PUNCH   - [alone] 42:2@0..1#ROOT2024
+              LITERAL Integer 1u16 42:2@1..5#ROOT2024
+              PUNCH   , [alone] 42:2@5..6#ROOT2024
+              PUNCH   - [alone] 42:2@7..8#ROOT2024
+              LITERAL Integer 2_u32 42:2@9..14#ROOT2024
+              PUNCH   , [alone] 42:2@14..15#ROOT2024
+              PUNCH   - [alone] 42:2@16..17#ROOT2024
+              LITERAL Float 3.14f32 42:2@17..24#ROOT2024
+              PUNCH   , [alone] 42:2@24..25#ROOT2024
+              PUNCH   - [alone] 42:2@26..27#ROOT2024
+              LITERAL Float 2.7 42:2@28..31#ROOT2024
+
+
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              PUNCH   - [alone] 42:2@0..1#ROOT2024
+              LITERAL Integer 1u16 42:2@1..5#ROOT2024
+              PUNCH   , [alone] 42:2@5..6#ROOT2024
+              PUNCH   - [alone] 42:2@7..8#ROOT2024
+              LITERAL Integer 2_u32 42:2@9..14#ROOT2024
+              PUNCH   , [alone] 42:2@14..15#ROOT2024
+              PUNCH   - [alone] 42:2@16..17#ROOT2024
+              LITERAL Float 3.14f32 42:2@17..24#ROOT2024
+              PUNCH   , [alone] 42:2@24..25#ROOT2024
+              PUNCH   - [alone] 42:2@26..27#ROOT2024
+              LITERAL Float 2.7 42:2@28..31#ROOT2024"#]],
+    );
+}
+
+#[test]
 fn test_attr_macro() {
     // Corresponds to
     //    #[proc_macro_test::attr_error(some arguments)]
@@ -233,6 +481,15 @@
         r#"some arguments"#,
         expect![[r#"
             SUBTREE $$ 1 1
+              IDENT   mod 1
+              IDENT   m 1
+              SUBTREE {} 1 1
+
+            SUBTREE $$ 1 1
+              IDENT   some 1
+              IDENT   arguments 1
+
+            SUBTREE $$ 1 1
               IDENT   compile_error 1
               PUNCH   ! [alone] 1
               SUBTREE () 1 1
@@ -240,6 +497,15 @@
               PUNCH   ; [alone] 1"#]],
         expect![[r#"
             SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              IDENT   mod 42:2@0..3#ROOT2024
+              IDENT   m 42:2@4..5#ROOT2024
+              SUBTREE {} 42:2@6..7#ROOT2024 42:2@7..8#ROOT2024
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
+              IDENT   some 42:2@0..4#ROOT2024
+              IDENT   arguments 42:2@5..14#ROOT2024
+
+            SUBTREE $$ 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
               IDENT   compile_error 42:2@0..100#ROOT2024
               PUNCH   ! [alone] 42:2@0..100#ROOT2024
               SUBTREE () 42:2@0..100#ROOT2024 42:2@0..100#ROOT2024
diff --git a/crates/proc-macro-srv/src/tests/utils.rs b/crates/proc-macro-srv/src/tests/utils.rs
index a476a70..a0a45b2 100644
--- a/crates/proc-macro-srv/src/tests/utils.rs
+++ b/crates/proc-macro-srv/src/tests/utils.rs
@@ -32,9 +32,9 @@
     macro_name: &str,
     #[rust_analyzer::rust_fixture] ra_fixture: &str,
     expect: Expect,
-    expect_s: Expect,
+    expect_spanned: Expect,
 ) {
-    assert_expand_impl(macro_name, ra_fixture, None, expect, expect_s);
+    assert_expand_impl(macro_name, ra_fixture, None, expect, expect_spanned);
 }
 
 pub fn assert_expand_attr(
@@ -42,9 +42,9 @@
     #[rust_analyzer::rust_fixture] ra_fixture: &str,
     attr_args: &str,
     expect: Expect,
-    expect_s: Expect,
+    expect_spanned: Expect,
 ) {
-    assert_expand_impl(macro_name, ra_fixture, Some(attr_args), expect, expect_s);
+    assert_expand_impl(macro_name, ra_fixture, Some(attr_args), expect, expect_spanned);
 }
 
 fn assert_expand_impl(
@@ -52,7 +52,7 @@
     input: &str,
     attr: Option<&str>,
     expect: Expect,
-    expect_s: Expect,
+    expect_spanned: Expect,
 ) {
     let path = proc_macro_test_dylib_path();
     let expander = dylib::Expander::new(&path).unwrap();
@@ -60,20 +60,17 @@
     let def_site = TokenId(0);
     let call_site = TokenId(1);
     let mixed_site = TokenId(2);
-    let input_ts = parse_string(call_site, input);
+    let input_ts = parse_string(call_site, input).into_subtree(call_site);
     let attr_ts = attr.map(|attr| parse_string(call_site, attr).into_subtree(call_site));
+    let input_ts_string = format!("{input_ts:?}");
+    let attr_ts_string = attr_ts.as_ref().map(|it| format!("{it:?}"));
 
-    let res = expander
-        .expand(
-            macro_name,
-            input_ts.into_subtree(call_site),
-            attr_ts,
-            def_site,
-            call_site,
-            mixed_site,
-        )
-        .unwrap();
-    expect.assert_eq(&format!("{res:?}"));
+    let res =
+        expander.expand(macro_name, input_ts, attr_ts, def_site, call_site, mixed_site).unwrap();
+    expect.assert_eq(&format!(
+        "{input_ts_string}\n\n{}\n\n{res:?}",
+        attr_ts_string.unwrap_or_default()
+    ));
 
     let def_site = Span {
         range: TextRange::new(0.into(), 150.into()),
@@ -93,15 +90,17 @@
     };
     let mixed_site = call_site;
 
-    let fixture = parse_string_spanned(call_site.anchor, call_site.ctx, input);
+    let fixture =
+        parse_string_spanned(call_site.anchor, call_site.ctx, input).into_subtree(call_site);
     let attr = attr.map(|attr| {
         parse_string_spanned(call_site.anchor, call_site.ctx, attr).into_subtree(call_site)
     });
+    let fixture_string = format!("{fixture:?}");
+    let attr_string = attr.as_ref().map(|it| format!("{it:?}"));
 
-    let res = expander
-        .expand(macro_name, fixture.into_subtree(call_site), attr, def_site, call_site, mixed_site)
-        .unwrap();
-    expect_s.assert_eq(&format!("{res:#?}"));
+    let res = expander.expand(macro_name, fixture, attr, def_site, call_site, mixed_site).unwrap();
+    expect_spanned
+        .assert_eq(&format!("{fixture_string}\n\n{}\n\n{res:#?}", attr_string.unwrap_or_default()));
 }
 
 pub(crate) fn list() -> Vec<String> {
diff --git a/crates/project-model/src/env.rs b/crates/project-model/src/env.rs
index e7293b0..450def5 100644
--- a/crates/project-model/src/env.rs
+++ b/crates/project-model/src/env.rs
@@ -18,6 +18,7 @@
 
     let manifest_dir = package.manifest.parent();
     env.set("CARGO_MANIFEST_DIR", manifest_dir.as_str());
+    env.set("CARGO_MANIFEST_PATH", package.manifest.as_str());
 
     env.set("CARGO_PKG_VERSION", package.version.to_string());
     env.set("CARGO_PKG_VERSION_MAJOR", package.version.major.to_string());
diff --git a/crates/project-model/src/sysroot.rs b/crates/project-model/src/sysroot.rs
index c7c1b04..d4055d9 100644
--- a/crates/project-model/src/sysroot.rs
+++ b/crates/project-model/src/sysroot.rs
@@ -137,7 +137,12 @@
                 }
 
                 let mut cmd = toolchain::command(tool.prefer_proxy(), current_dir, envs);
-                cmd.env("RUSTUP_TOOLCHAIN", AsRef::<std::path::Path>::as_ref(root));
+                if !envs.contains_key("RUSTUP_TOOLCHAIN")
+                    && std::env::var_os("RUSTUP_TOOLCHAIN").is_none()
+                {
+                    cmd.env("RUSTUP_TOOLCHAIN", AsRef::<std::path::Path>::as_ref(root));
+                }
+
                 cmd
             }
             _ => toolchain::command(tool.path(), current_dir, envs),
diff --git a/crates/project-model/test_data/output/cargo_hello_world_project_model.txt b/crates/project-model/test_data/output/cargo_hello_world_project_model.txt
index 4ef9d816..3722e2c 100644
--- a/crates/project-model/test_data/output/cargo_hello_world_project_model.txt
+++ b/crates/project-model/test_data/output/cargo_hello_world_project_model.txt
@@ -52,6 +52,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "hello_world",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -136,6 +137,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "hello_world",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -220,6 +222,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "an_example",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -304,6 +307,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "it",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -384,6 +388,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "libc",
                 "CARGO_MANIFEST_DIR": "$ROOT$.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.98",
+                "CARGO_MANIFEST_PATH": "$ROOT$.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.98/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "The Rust Project Developers",
                 "CARGO_PKG_DESCRIPTION": "Raw FFI bindings to platform libraries like libc.\n",
                 "CARGO_PKG_HOMEPAGE": "https://github.com/rust-lang/libc",
diff --git a/crates/project-model/test_data/output/cargo_hello_world_project_model_with_selective_overrides.txt b/crates/project-model/test_data/output/cargo_hello_world_project_model_with_selective_overrides.txt
index 4ef9d816..3722e2c 100644
--- a/crates/project-model/test_data/output/cargo_hello_world_project_model_with_selective_overrides.txt
+++ b/crates/project-model/test_data/output/cargo_hello_world_project_model_with_selective_overrides.txt
@@ -52,6 +52,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "hello_world",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -136,6 +137,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "hello_world",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -220,6 +222,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "an_example",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -304,6 +307,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "it",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -384,6 +388,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "libc",
                 "CARGO_MANIFEST_DIR": "$ROOT$.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.98",
+                "CARGO_MANIFEST_PATH": "$ROOT$.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.98/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "The Rust Project Developers",
                 "CARGO_PKG_DESCRIPTION": "Raw FFI bindings to platform libraries like libc.\n",
                 "CARGO_PKG_HOMEPAGE": "https://github.com/rust-lang/libc",
diff --git a/crates/project-model/test_data/output/cargo_hello_world_project_model_with_wildcard_overrides.txt b/crates/project-model/test_data/output/cargo_hello_world_project_model_with_wildcard_overrides.txt
index 52089d1..7b156ea 100644
--- a/crates/project-model/test_data/output/cargo_hello_world_project_model_with_wildcard_overrides.txt
+++ b/crates/project-model/test_data/output/cargo_hello_world_project_model_with_wildcard_overrides.txt
@@ -51,6 +51,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "hello_world",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -134,6 +135,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "hello_world",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -217,6 +219,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "an_example",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -300,6 +303,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "it",
                 "CARGO_MANIFEST_DIR": "$ROOT$hello-world",
+                "CARGO_MANIFEST_PATH": "$ROOT$hello-world/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "",
                 "CARGO_PKG_DESCRIPTION": "",
                 "CARGO_PKG_HOMEPAGE": "",
@@ -380,6 +384,7 @@
                 "CARGO": "$CARGO$",
                 "CARGO_CRATE_NAME": "libc",
                 "CARGO_MANIFEST_DIR": "$ROOT$.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.98",
+                "CARGO_MANIFEST_PATH": "$ROOT$.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.98/Cargo.toml",
                 "CARGO_PKG_AUTHORS": "The Rust Project Developers",
                 "CARGO_PKG_DESCRIPTION": "Raw FFI bindings to platform libraries like libc.\n",
                 "CARGO_PKG_HOMEPAGE": "https://github.com/rust-lang/libc",
diff --git a/crates/query-group-macro/tests/logger_db.rs b/crates/query-group-macro/tests/logger_db.rs
index bade0c2..71af63a 100644
--- a/crates/query-group-macro/tests/logger_db.rs
+++ b/crates/query-group-macro/tests/logger_db.rs
@@ -1,33 +1,41 @@
 use std::sync::{Arc, Mutex};
 
 #[salsa_macros::db]
-#[derive(Default, Clone)]
+#[derive(Clone)]
 pub(crate) struct LoggerDb {
     storage: salsa::Storage<Self>,
     logger: Logger,
 }
 
+impl Default for LoggerDb {
+    fn default() -> Self {
+        let logger = Logger::default();
+        Self {
+            storage: salsa::Storage::new(Some(Box::new({
+                let logger = logger.clone();
+                move |event| match event.kind {
+                    salsa::EventKind::WillExecute { .. }
+                    | salsa::EventKind::WillCheckCancellation
+                    | salsa::EventKind::DidValidateMemoizedValue { .. }
+                    | salsa::EventKind::WillDiscardStaleOutput { .. }
+                    | salsa::EventKind::DidDiscard { .. } => {
+                        logger.logs.lock().unwrap().push(format!("salsa_event({:?})", event.kind));
+                    }
+                    _ => {}
+                }
+            }))),
+            logger,
+        }
+    }
+}
+
 #[derive(Default, Clone)]
 struct Logger {
     logs: Arc<Mutex<Vec<String>>>,
 }
 
 #[salsa_macros::db]
-impl salsa::Database for LoggerDb {
-    fn salsa_event(&self, event: &dyn Fn() -> salsa::Event) {
-        let event = event();
-        match event.kind {
-            salsa::EventKind::WillExecute { .. }
-            | salsa::EventKind::WillCheckCancellation
-            | salsa::EventKind::DidValidateMemoizedValue { .. }
-            | salsa::EventKind::WillDiscardStaleOutput { .. }
-            | salsa::EventKind::DidDiscard { .. } => {
-                self.push_log(format!("salsa_event({:?})", event.kind));
-            }
-            _ => {}
-        }
-    }
-}
+impl salsa::Database for LoggerDb {}
 
 impl LoggerDb {
     /// Log an event from inside a tracked function.
diff --git a/crates/rust-analyzer/src/cli/analysis_stats.rs b/crates/rust-analyzer/src/cli/analysis_stats.rs
index a1e4adf..12b393b 100644
--- a/crates/rust-analyzer/src/cli/analysis_stats.rs
+++ b/crates/rust-analyzer/src/cli/analysis_stats.rs
@@ -4,6 +4,7 @@
 use std::{
     env, fmt,
     ops::AddAssign,
+    panic::{AssertUnwindSafe, catch_unwind},
     time::{SystemTime, UNIX_EPOCH},
 };
 
@@ -721,6 +722,7 @@
         let mut num_pats_unknown = 0;
         let mut num_pats_partially_unknown = 0;
         let mut num_pat_type_mismatches = 0;
+        let mut panics = 0;
         for &body_id in bodies {
             let name = body_id.name(db).unwrap_or_else(Name::missing);
             let module = body_id.module(db);
@@ -774,7 +776,20 @@
             }
             bar.set_message(msg);
             let body = db.body(body_id.into());
-            let inference_result = db.infer(body_id.into());
+            let inference_result = catch_unwind(AssertUnwindSafe(|| db.infer(body_id.into())));
+            let inference_result = match inference_result {
+                Ok(inference_result) => inference_result,
+                Err(p) => {
+                    if let Some(s) = p.downcast_ref::<&str>() {
+                        eprintln!("infer panicked for {}: {}", full_name(), s);
+                    } else if let Some(s) = p.downcast_ref::<String>() {
+                        eprintln!("infer panicked for {}: {}", full_name(), s);
+                    }
+                    panics += 1;
+                    bar.inc(1);
+                    continue;
+                }
+            };
             // This query is LRU'd, so actually calling it will skew the timing results.
             let sm = || db.body_with_source_map(body_id.into()).1;
 
@@ -1008,6 +1023,7 @@
             percentage(num_pats_partially_unknown, num_pats),
             num_pat_type_mismatches
         );
+        eprintln!("  panics: {panics}");
         eprintln!("{:<20} {}", "Inference:", inference_time);
         report_metric("unknown type", num_exprs_unknown, "#");
         report_metric("type mismatches", num_expr_type_mismatches, "#");
diff --git a/crates/rust-analyzer/src/cli/flags.rs b/crates/rust-analyzer/src/cli/flags.rs
index 57f95d1..16f3512 100644
--- a/crates/rust-analyzer/src/cli/flags.rs
+++ b/crates/rust-analyzer/src/cli/flags.rs
@@ -150,8 +150,8 @@
             optional --disable-proc-macros
             /// Run the proc-macro-srv binary at the specified path.
             optional --proc-macro-srv path: PathBuf
-            /// Run cache priming in parallel.
-            optional --parallel
+            /// The number of threads to use. Defaults to the number of physical cores.
+            optional --num-threads num_threads: usize
         }
 
         cmd ssr {
@@ -299,7 +299,7 @@
     pub disable_build_scripts: bool,
     pub disable_proc_macros: bool,
     pub proc_macro_srv: Option<PathBuf>,
-    pub parallel: bool,
+    pub num_threads: Option<usize>,
 }
 
 #[derive(Debug)]
diff --git a/crates/rust-analyzer/src/cli/prime_caches.rs b/crates/rust-analyzer/src/cli/prime_caches.rs
index 46fb701..467d8a5 100644
--- a/crates/rust-analyzer/src/cli/prime_caches.rs
+++ b/crates/rust-analyzer/src/cli/prime_caches.rs
@@ -52,7 +52,7 @@
             elapsed.memory.allocated.megabytes() as u64
         );
 
-        let threads = if self.parallel { num_cpus::get() } else { 1 };
+        let threads = self.num_threads.unwrap_or_else(num_cpus::get_physical);
         ide_db::prime_caches::parallel_prime_caches(&db, threads, &|_| ());
 
         let elapsed = stop_watch.elapsed();
diff --git a/crates/rust-analyzer/src/config.rs b/crates/rust-analyzer/src/config.rs
index 03e5b1f..d1ca8c1 100644
--- a/crates/rust-analyzer/src/config.rs
+++ b/crates/rust-analyzer/src/config.rs
@@ -149,6 +149,8 @@
         hover_memoryLayout_niches: Option<bool> = Some(false),
         /// How to render the offset information in a memory layout hover.
         hover_memoryLayout_offset: Option<MemoryLayoutHoverRenderKindDef> = Some(MemoryLayoutHoverRenderKindDef::Hexadecimal),
+        /// How to render the padding information in a memory layout hover.
+        hover_memoryLayout_padding: Option<MemoryLayoutHoverRenderKindDef> = None,
         /// How to render the size information in a memory layout hover.
         hover_memoryLayout_size: Option<MemoryLayoutHoverRenderKindDef> = Some(MemoryLayoutHoverRenderKindDef::Both),
 
@@ -544,7 +546,7 @@
          /// Whether to prefer import paths containing a `prelude` module.
         imports_preferPrelude: bool                       = false,
         /// The path structure for newly inserted paths to use.
-        imports_prefix: ImportPrefixDef               = ImportPrefixDef::Plain,
+        imports_prefix: ImportPrefixDef               = ImportPrefixDef::ByCrate,
         /// Whether to prefix external (including std, core) crate imports with `::`. e.g. "use ::std::io::Read;".
         imports_prefixExternPrelude: bool = false,
     }
@@ -1635,6 +1637,7 @@
                 size: self.hover_memoryLayout_size().map(mem_kind),
                 offset: self.hover_memoryLayout_offset().map(mem_kind),
                 alignment: self.hover_memoryLayout_alignment().map(mem_kind),
+                padding: self.hover_memoryLayout_padding().map(mem_kind),
                 niches: self.hover_memoryLayout_niches().unwrap_or_default(),
             }),
             documentation: self.hover_documentation_enable().to_owned(),
diff --git a/crates/rust-analyzer/src/flycheck.rs b/crates/rust-analyzer/src/flycheck.rs
index fc31243..0e41824 100644
--- a/crates/rust-analyzer/src/flycheck.rs
+++ b/crates/rust-analyzer/src/flycheck.rs
@@ -470,7 +470,11 @@
                 let mut cmd =
                     toolchain::command(Tool::Cargo.path(), &*self.root, &options.extra_env);
                 if let Some(sysroot_root) = &self.sysroot_root {
-                    cmd.env("RUSTUP_TOOLCHAIN", AsRef::<std::path::Path>::as_ref(sysroot_root));
+                    if !options.extra_env.contains_key("RUSTUP_TOOLCHAIN")
+                        && std::env::var_os("RUSTUP_TOOLCHAIN").is_none()
+                    {
+                        cmd.env("RUSTUP_TOOLCHAIN", AsRef::<std::path::Path>::as_ref(sysroot_root));
+                    }
                 }
                 cmd.arg(command);
 
diff --git a/crates/rust-analyzer/src/global_state.rs b/crates/rust-analyzer/src/global_state.rs
index 3b3b9c8..a870232 100644
--- a/crates/rust-analyzer/src/global_state.rs
+++ b/crates/rust-analyzer/src/global_state.rs
@@ -3,7 +3,11 @@
 //!
 //! Each tick provides an immutable snapshot of the state as `WorldSnapshot`.
 
-use std::{ops::Not as _, time::Instant};
+use std::{
+    ops::Not as _,
+    panic::AssertUnwindSafe,
+    time::{Duration, Instant},
+};
 
 use crossbeam_channel::{Receiver, Sender, unbounded};
 use hir::ChangeWithProcMacros;
@@ -19,6 +23,7 @@
 use proc_macro_api::ProcMacroClient;
 use project_model::{ManifestPath, ProjectWorkspace, ProjectWorkspaceKind, WorkspaceBuildScripts};
 use rustc_hash::{FxHashMap, FxHashSet};
+use stdx::thread;
 use tracing::{Level, span, trace};
 use triomphe::Arc;
 use vfs::{AbsPathBuf, AnchoredPathBuf, ChangeKind, Vfs, VfsPath};
@@ -40,6 +45,7 @@
     test_runner::{CargoTestHandle, CargoTestMessage},
 };
 
+#[derive(Debug)]
 pub(crate) struct FetchWorkspaceRequest {
     pub(crate) path: Option<AbsPathBuf>,
     pub(crate) force_crate_graph_reload: bool,
@@ -78,6 +84,7 @@
 
     pub(crate) task_pool: Handle<TaskPool<Task>, Receiver<Task>>,
     pub(crate) fmt_pool: Handle<TaskPool<Task>, Receiver<Task>>,
+    pub(crate) cancellation_pool: thread::Pool,
 
     pub(crate) config: Arc<Config>,
     pub(crate) config_errors: Option<ConfigErrors>,
@@ -114,6 +121,11 @@
     pub(crate) discover_sender: Sender<discover::DiscoverProjectMessage>,
     pub(crate) discover_receiver: Receiver<discover::DiscoverProjectMessage>,
 
+    // Debouncing channel for fetching the workspace
+    // we want to delay it until the VFS looks stable-ish (and thus is not currently in the middle
+    // of a VCS operation like `git switch`)
+    pub(crate) fetch_ws_receiver: Option<(Receiver<Instant>, FetchWorkspaceRequest)>,
+
     // VFS
     pub(crate) loader: Handle<Box<dyn vfs::loader::Handle>, Receiver<vfs::loader::Message>>,
     pub(crate) vfs: Arc<RwLock<(vfs::Vfs, FxHashMap<FileId, LineEndings>)>>,
@@ -210,6 +222,7 @@
             let handle = TaskPool::new_with_threads(sender, 1);
             Handle { handle, receiver }
         };
+        let cancellation_pool = thread::Pool::new(1);
 
         let task_queue = {
             let (sender, receiver) = unbounded();
@@ -230,6 +243,7 @@
             req_queue: ReqQueue::default(),
             task_pool,
             fmt_pool,
+            cancellation_pool,
             loader,
             config: Arc::new(config.clone()),
             analysis_host,
@@ -264,6 +278,8 @@
             discover_sender,
             discover_receiver,
 
+            fetch_ws_receiver: None,
+
             vfs: Arc::new(RwLock::new((vfs::Vfs::default(), Default::default()))),
             vfs_config_version: 0,
             vfs_progress_config_version: 0,
@@ -290,7 +306,6 @@
 
     pub(crate) fn process_changes(&mut self) -> bool {
         let _p = span!(Level::INFO, "GlobalState::process_changes").entered();
-
         // We cannot directly resolve a change in a ratoml file to a format
         // that can be used by the config module because config talks
         // in `SourceRootId`s instead of `FileId`s and `FileId` -> `SourceRootId`
@@ -298,66 +313,75 @@
         let mut modified_ratoml_files: FxHashMap<FileId, (ChangeKind, vfs::VfsPath)> =
             FxHashMap::default();
 
-        let (change, modified_rust_files, workspace_structure_change) = {
-            let mut change = ChangeWithProcMacros::default();
-            let mut guard = self.vfs.write();
-            let changed_files = guard.0.take_changes();
-            if changed_files.is_empty() {
-                return false;
-            }
+        let mut change = ChangeWithProcMacros::default();
+        let mut guard = self.vfs.write();
+        let changed_files = guard.0.take_changes();
+        if changed_files.is_empty() {
+            return false;
+        }
 
-            // downgrade to read lock to allow more readers while we are normalizing text
-            let guard = RwLockWriteGuard::downgrade_to_upgradable(guard);
-            let vfs: &Vfs = &guard.0;
+        let (change, modified_rust_files, workspace_structure_change) =
+            self.cancellation_pool.scoped(|s| {
+                // start cancellation in parallel, this will kick off lru eviction
+                // allowing us to do meaningful work while waiting
+                let analysis_host = AssertUnwindSafe(&mut self.analysis_host);
+                s.spawn(thread::ThreadIntent::LatencySensitive, || {
+                    { analysis_host }.0.request_cancellation()
+                });
 
-            let mut workspace_structure_change = None;
-            // A file was added or deleted
-            let mut has_structure_changes = false;
-            let mut bytes = vec![];
-            let mut modified_rust_files = vec![];
-            for file in changed_files.into_values() {
-                let vfs_path = vfs.file_path(file.file_id);
-                if let Some(("rust-analyzer", Some("toml"))) = vfs_path.name_and_extension() {
-                    // Remember ids to use them after `apply_changes`
-                    modified_ratoml_files.insert(file.file_id, (file.kind(), vfs_path.clone()));
-                }
+                // downgrade to read lock to allow more readers while we are normalizing text
+                let guard = RwLockWriteGuard::downgrade_to_upgradable(guard);
+                let vfs: &Vfs = &guard.0;
 
-                if let Some(path) = vfs_path.as_path() {
-                    has_structure_changes |= file.is_created_or_deleted();
-
-                    if file.is_modified() && path.extension() == Some("rs") {
-                        modified_rust_files.push(file.file_id);
+                let mut workspace_structure_change = None;
+                // A file was added or deleted
+                let mut has_structure_changes = false;
+                let mut bytes = vec![];
+                let mut modified_rust_files = vec![];
+                for file in changed_files.into_values() {
+                    let vfs_path = vfs.file_path(file.file_id);
+                    if let Some(("rust-analyzer", Some("toml"))) = vfs_path.name_and_extension() {
+                        // Remember ids to use them after `apply_changes`
+                        modified_ratoml_files.insert(file.file_id, (file.kind(), vfs_path.clone()));
                     }
 
-                    let additional_files = self
-                        .config
-                        .discover_workspace_config()
-                        .map(|cfg| {
-                            cfg.files_to_watch.iter().map(String::as_str).collect::<Vec<&str>>()
-                        })
-                        .unwrap_or_default();
+                    if let Some(path) = vfs_path.as_path() {
+                        has_structure_changes |= file.is_created_or_deleted();
 
-                    let path = path.to_path_buf();
-                    if file.is_created_or_deleted() {
-                        workspace_structure_change.get_or_insert((path, false)).1 |=
-                            self.crate_graph_file_dependencies.contains(vfs_path);
-                    } else if reload::should_refresh_for_change(
-                        &path,
-                        file.kind(),
-                        &additional_files,
-                    ) {
-                        trace!(?path, kind = ?file.kind(), "refreshing for a change");
-                        workspace_structure_change.get_or_insert((path.clone(), false));
+                        if file.is_modified() && path.extension() == Some("rs") {
+                            modified_rust_files.push(file.file_id);
+                        }
+
+                        let additional_files = self
+                            .config
+                            .discover_workspace_config()
+                            .map(|cfg| {
+                                cfg.files_to_watch.iter().map(String::as_str).collect::<Vec<&str>>()
+                            })
+                            .unwrap_or_default();
+
+                        let path = path.to_path_buf();
+                        if file.is_created_or_deleted() {
+                            workspace_structure_change.get_or_insert((path, false)).1 |=
+                                self.crate_graph_file_dependencies.contains(vfs_path);
+                        } else if reload::should_refresh_for_change(
+                            &path,
+                            file.kind(),
+                            &additional_files,
+                        ) {
+                            trace!(?path, kind = ?file.kind(), "refreshing for a change");
+                            workspace_structure_change.get_or_insert((path.clone(), false));
+                        }
                     }
-                }
 
-                // Clear native diagnostics when their file gets deleted
-                if !file.exists() {
-                    self.diagnostics.clear_native_for(file.file_id);
-                }
+                    // Clear native diagnostics when their file gets deleted
+                    if !file.exists() {
+                        self.diagnostics.clear_native_for(file.file_id);
+                    }
 
-                let text =
-                    if let vfs::Change::Create(v, _) | vfs::Change::Modify(v, _) = file.change {
+                    let text = if let vfs::Change::Create(v, _) | vfs::Change::Modify(v, _) =
+                        file.change
+                    {
                         String::from_utf8(v).ok().map(|text| {
                             // FIXME: Consider doing normalization in the `vfs` instead? That allows
                             // getting rid of some locking
@@ -367,29 +391,28 @@
                     } else {
                         None
                     };
-                // delay `line_endings_map` changes until we are done normalizing the text
-                // this allows delaying the re-acquisition of the write lock
-                bytes.push((file.file_id, text));
-            }
-            let (vfs, line_endings_map) = &mut *RwLockUpgradableReadGuard::upgrade(guard);
-            bytes.into_iter().for_each(|(file_id, text)| {
-                let text = match text {
-                    None => None,
-                    Some((text, line_endings)) => {
-                        line_endings_map.insert(file_id, line_endings);
-                        Some(text)
-                    }
-                };
-                change.change_file(file_id, text);
+                    // delay `line_endings_map` changes until we are done normalizing the text
+                    // this allows delaying the re-acquisition of the write lock
+                    bytes.push((file.file_id, text));
+                }
+                let (vfs, line_endings_map) = &mut *RwLockUpgradableReadGuard::upgrade(guard);
+                bytes.into_iter().for_each(|(file_id, text)| {
+                    let text = match text {
+                        None => None,
+                        Some((text, line_endings)) => {
+                            line_endings_map.insert(file_id, line_endings);
+                            Some(text)
+                        }
+                    };
+                    change.change_file(file_id, text);
+                });
+                if has_structure_changes {
+                    let roots = self.source_root_config.partition(vfs);
+                    change.set_roots(roots);
+                }
+                (change, modified_rust_files, workspace_structure_change)
             });
-            if has_structure_changes {
-                let roots = self.source_root_config.partition(vfs);
-                change.set_roots(roots);
-            }
-            (change, modified_rust_files, workspace_structure_change)
-        };
 
-        let _p = span!(Level::INFO, "GlobalState::process_changes/apply_change").entered();
         self.analysis_host.apply_change(change);
         if !modified_ratoml_files.is_empty()
             || !self.config.same_source_root_parent_map(&self.local_roots_parent_map)
@@ -508,11 +531,7 @@
             if let Some((path, force_crate_graph_reload)) = workspace_structure_change {
                 let _p = span!(Level::INFO, "GlobalState::process_changes/ws_structure_change")
                     .entered();
-
-                self.fetch_workspaces_queue.request_op(
-                    format!("workspace vfs file change: {path}"),
-                    FetchWorkspaceRequest { path: Some(path), force_crate_graph_reload },
-                );
+                self.enqueue_workspace_fetch(path, force_crate_graph_reload);
             }
         }
 
@@ -660,6 +679,30 @@
             None
         })
     }
+
+    fn enqueue_workspace_fetch(&mut self, path: AbsPathBuf, force_crate_graph_reload: bool) {
+        let already_requested = self.fetch_workspaces_queue.op_requested()
+            && !self.fetch_workspaces_queue.op_in_progress();
+        if self.fetch_ws_receiver.is_none() && already_requested {
+            // Don't queue up a new fetch request if we already have done so
+            // Otherwise we will re-fetch in quick succession which is unnecessary
+            // Note though, that if one is already in progress, we *want* to re-queue
+            // as the in-progress fetch might not have the latest changes in it anymore
+            // FIXME: We should cancel the in-progress fetch here
+            return;
+        }
+
+        self.fetch_ws_receiver = Some((
+            crossbeam_channel::after(Duration::from_millis(100)),
+            FetchWorkspaceRequest { path: Some(path), force_crate_graph_reload },
+        ));
+    }
+
+    pub(crate) fn debounce_workspace_fetch(&mut self) {
+        if let Some((fetch_receiver, _)) = &mut self.fetch_ws_receiver {
+            *fetch_receiver = crossbeam_channel::after(Duration::from_millis(100));
+        }
+    }
 }
 
 impl Drop for GlobalState {
diff --git a/crates/rust-analyzer/src/integrated_benchmarks.rs b/crates/rust-analyzer/src/integrated_benchmarks.rs
index 49ebffa..84b7888 100644
--- a/crates/rust-analyzer/src/integrated_benchmarks.rs
+++ b/crates/rust-analyzer/src/integrated_benchmarks.rs
@@ -147,7 +147,7 @@
         let _it = stdx::timeit("change");
         let mut text = host.analysis().file_text(file_id).unwrap().to_string();
         let completion_offset =
-            patch(&mut text, "db.struct_data(self.id)", "sel;\ndb.struct_data(self.id)")
+            patch(&mut text, "db.struct_signature(self.id)", "sel;\ndb.struct_signature(self.id)")
                 + "sel".len();
         let mut change = ChangeWithProcMacros::default();
         change.change_file(file_id, Some(text));
@@ -197,9 +197,11 @@
     let completion_offset = {
         let _it = stdx::timeit("change");
         let mut text = host.analysis().file_text(file_id).unwrap().to_string();
-        let completion_offset =
-            patch(&mut text, "sel;\ndb.struct_data(self.id)", ";sel;\ndb.struct_data(self.id)")
-                + ";sel".len();
+        let completion_offset = patch(
+            &mut text,
+            "sel;\ndb.struct_signature(self.id)",
+            ";sel;\ndb.struct_signature(self.id)",
+        ) + ";sel".len();
         let mut change = ChangeWithProcMacros::default();
         change.change_file(file_id, Some(text));
         host.apply_change(change);
@@ -247,9 +249,11 @@
     let completion_offset = {
         let _it = stdx::timeit("change");
         let mut text = host.analysis().file_text(file_id).unwrap().to_string();
-        let completion_offset =
-            patch(&mut text, "sel;\ndb.struct_data(self.id)", "self.;\ndb.struct_data(self.id)")
-                + "self.".len();
+        let completion_offset = patch(
+            &mut text,
+            "sel;\ndb.struct_signature(self.id)",
+            "self.;\ndb.struct_signature(self.id)",
+        ) + "self.".len();
         let mut change = ChangeWithProcMacros::default();
         change.change_file(file_id, Some(text));
         host.apply_change(change);
@@ -366,7 +370,7 @@
     {
         let _it = stdx::timeit("change");
         let mut text = host.analysis().file_text(file_id).unwrap().to_string();
-        patch(&mut text, "db.struct_data(self.id)", "();\ndb.struct_data(self.id)");
+        patch(&mut text, "db.struct_signature(self.id)", "();\ndb.struct_signature(self.id)");
         let mut change = ChangeWithProcMacros::default();
         change.change_file(file_id, Some(text));
         host.apply_change(change);
diff --git a/crates/rust-analyzer/src/main_loop.rs b/crates/rust-analyzer/src/main_loop.rs
index bd213ff..0c0438c 100644
--- a/crates/rust-analyzer/src/main_loop.rs
+++ b/crates/rust-analyzer/src/main_loop.rs
@@ -8,7 +8,7 @@
     time::{Duration, Instant},
 };
 
-use crossbeam_channel::{Receiver, select};
+use crossbeam_channel::{Receiver, never, select};
 use ide_db::base_db::{SourceDatabase, VfsPath, salsa::Database as _};
 use lsp_server::{Connection, Notification, Request};
 use lsp_types::{TextDocumentIdentifier, notification::Notification as _};
@@ -71,6 +71,7 @@
     Flycheck(FlycheckMessage),
     TestResult(CargoTestMessage),
     DiscoverProject(DiscoverProjectMessage),
+    FetchWorkspaces(FetchWorkspaceRequest),
 }
 
 impl fmt::Display for Event {
@@ -83,6 +84,7 @@
             Event::QueuedTask(_) => write!(f, "Event::QueuedTask"),
             Event::TestResult(_) => write!(f, "Event::TestResult"),
             Event::DiscoverProject(_) => write!(f, "Event::DiscoverProject"),
+            Event::FetchWorkspaces(_) => write!(f, "Event::SwitchWorkspaces"),
         }
     }
 }
@@ -150,6 +152,7 @@
             }
             _ => (),
         }
+
         match self {
             Event::Lsp(it) => fmt::Debug::fmt(it, f),
             Event::Task(it) => fmt::Debug::fmt(it, f),
@@ -158,6 +161,7 @@
             Event::Flycheck(it) => fmt::Debug::fmt(it, f),
             Event::TestResult(it) => fmt::Debug::fmt(it, f),
             Event::DiscoverProject(it) => fmt::Debug::fmt(it, f),
+            Event::FetchWorkspaces(it) => fmt::Debug::fmt(it, f),
         }
     }
 }
@@ -251,7 +255,7 @@
     }
 
     fn next_event(
-        &self,
+        &mut self,
         inbox: &Receiver<lsp_server::Message>,
     ) -> Result<Option<Event>, crossbeam_channel::RecvError> {
         // Make sure we reply to formatting requests ASAP so the editor doesn't block
@@ -283,6 +287,10 @@
 
             recv(self.discover_receiver) -> task =>
                 task.map(Event::DiscoverProject),
+
+            recv(self.fetch_ws_receiver.as_ref().map_or(&never(), |(chan, _)| chan)) -> _instant => {
+                Ok(Event::FetchWorkspaces(self.fetch_ws_receiver.take().unwrap().1))
+            },
         }
         .map(Some)
     }
@@ -412,6 +420,9 @@
                     self.handle_discover_msg(message);
                 }
             }
+            Event::FetchWorkspaces(req) => {
+                self.fetch_workspaces_queue.request_op("project structure change".to_owned(), req)
+            }
         }
         let event_handling_duration = loop_start.elapsed();
         let (state_changed, memdocs_added_or_removed) = if self.vfs_done {
@@ -830,6 +841,7 @@
         match message {
             vfs::loader::Message::Changed { files } | vfs::loader::Message::Loaded { files } => {
                 let _p = tracing::info_span!("GlobalState::handle_vfs_msg{changed/load}").entered();
+                self.debounce_workspace_fetch();
                 let vfs = &mut self.vfs.write().0;
                 for (path, contents) in files {
                     let path = VfsPath::from(path);
diff --git a/crates/rust-analyzer/src/op_queue.rs b/crates/rust-analyzer/src/op_queue.rs
index 709d99b..7af5b48 100644
--- a/crates/rust-analyzer/src/op_queue.rs
+++ b/crates/rust-analyzer/src/op_queue.rs
@@ -36,7 +36,7 @@
     }
 }
 
-impl<Args, Output> OpQueue<Args, Output> {
+impl<Args: std::fmt::Debug, Output> OpQueue<Args, Output> {
     /// Request an operation to start.
     pub(crate) fn request_op(&mut self, reason: Cause, args: Args) {
         self.op_requested = Some((reason, args));
diff --git a/crates/rust-analyzer/src/reload.rs b/crates/rust-analyzer/src/reload.rs
index 55ed192..ae9e3e9 100644
--- a/crates/rust-analyzer/src/reload.rs
+++ b/crates/rust-analyzer/src/reload.rs
@@ -69,6 +69,7 @@
     /// are ready to do semantic work.
     pub(crate) fn is_quiescent(&self) -> bool {
         self.vfs_done
+            && self.fetch_ws_receiver.is_none()
             && !self.fetch_workspaces_queue.op_in_progress()
             && !self.fetch_build_data_queue.op_in_progress()
             && !self.fetch_proc_macros_queue.op_in_progress()
@@ -659,6 +660,10 @@
                         .chain(
                             ws.sysroot
                                 .root()
+                                .filter(|_| {
+                                    !self.config.extra_env(None).contains_key("RUSTUP_TOOLCHAIN")
+                                        && std::env::var_os("RUSTUP_TOOLCHAIN").is_none()
+                                })
                                 .map(|it| ("RUSTUP_TOOLCHAIN".to_owned(), Some(it.to_string()))),
                         )
                         .collect(),
diff --git a/crates/stdx/Cargo.toml b/crates/stdx/Cargo.toml
index 7bda106..b37aded 100644
--- a/crates/stdx/Cargo.toml
+++ b/crates/stdx/Cargo.toml
@@ -17,6 +17,7 @@
 crossbeam-channel.workspace = true
 itertools.workspace = true
 tracing.workspace = true
+crossbeam-utils = "0.8.21"
 # Think twice before adding anything here
 
 [target.'cfg(unix)'.dependencies]
diff --git a/crates/stdx/src/thread/pool.rs b/crates/stdx/src/thread/pool.rs
index a8de4db..8d76c5f 100644
--- a/crates/stdx/src/thread/pool.rs
+++ b/crates/stdx/src/thread/pool.rs
@@ -8,6 +8,7 @@
 //! the threading utilities in [`crate::thread`].
 
 use std::{
+    marker::PhantomData,
     panic::{self, UnwindSafe},
     sync::{
         Arc,
@@ -16,8 +17,9 @@
 };
 
 use crossbeam_channel::{Receiver, Sender};
+use crossbeam_utils::sync::WaitGroup;
 
-use super::{Builder, JoinHandle, ThreadIntent};
+use crate::thread::{Builder, JoinHandle, ThreadIntent};
 
 pub struct Pool {
     // `_handles` is never read: the field is present
@@ -79,9 +81,6 @@
         Self { _handles: handles.into_boxed_slice(), extant_tasks, job_sender }
     }
 
-    /// # Panics
-    ///
-    /// Panics if job panics
     pub fn spawn<F>(&self, intent: ThreadIntent, f: F)
     where
         F: FnOnce() + Send + UnwindSafe + 'static,
@@ -97,6 +96,17 @@
         self.job_sender.send(job).unwrap();
     }
 
+    pub fn scoped<'pool, 'scope, F, R>(&'pool self, f: F) -> R
+    where
+        F: FnOnce(&Scope<'pool, 'scope>) -> R,
+    {
+        let wg = WaitGroup::new();
+        let scope = Scope { pool: self, wg, _marker: PhantomData };
+        let r = f(&scope);
+        scope.wg.wait();
+        r
+    }
+
     #[must_use]
     pub fn len(&self) -> usize {
         self.extant_tasks.load(Ordering::SeqCst)
@@ -107,3 +117,36 @@
         self.len() == 0
     }
 }
+
+pub struct Scope<'pool, 'scope> {
+    pool: &'pool Pool,
+    wg: WaitGroup,
+    _marker: PhantomData<fn(&'scope ()) -> &'scope ()>,
+}
+
+impl<'scope> Scope<'_, 'scope> {
+    pub fn spawn<F>(&self, intent: ThreadIntent, f: F)
+    where
+        F: 'scope + FnOnce() + Send + UnwindSafe,
+    {
+        let wg = self.wg.clone();
+        let f = Box::new(move || {
+            if cfg!(debug_assertions) {
+                intent.assert_is_used_on_current_thread();
+            }
+            f();
+            drop(wg);
+        });
+
+        let job = Job {
+            requested_intent: intent,
+            f: unsafe {
+                std::mem::transmute::<
+                    Box<dyn 'scope + FnOnce() + Send + UnwindSafe>,
+                    Box<dyn 'static + FnOnce() + Send + UnwindSafe>,
+                >(f)
+            },
+        };
+        self.pool.job_sender.send(job).unwrap();
+    }
+}
diff --git a/crates/syntax/src/ast/edit_in_place.rs b/crates/syntax/src/ast/edit_in_place.rs
index da0bfd4..e60243f 100644
--- a/crates/syntax/src/ast/edit_in_place.rs
+++ b/crates/syntax/src/ast/edit_in_place.rs
@@ -109,6 +109,67 @@
     }
 }
 
+impl GenericParamsOwnerEdit for ast::TraitAlias {
+    fn get_or_create_generic_param_list(&self) -> ast::GenericParamList {
+        match self.generic_param_list() {
+            Some(it) => it,
+            None => {
+                let position = if let Some(name) = self.name() {
+                    Position::after(name.syntax)
+                } else if let Some(trait_token) = self.trait_token() {
+                    Position::after(trait_token)
+                } else {
+                    Position::last_child_of(self.syntax())
+                };
+                create_generic_param_list(position)
+            }
+        }
+    }
+
+    fn get_or_create_where_clause(&self) -> ast::WhereClause {
+        if self.where_clause().is_none() {
+            let position = match self.semicolon_token() {
+                Some(tok) => Position::before(tok),
+                None => Position::last_child_of(self.syntax()),
+            };
+            create_where_clause(position);
+        }
+        self.where_clause().unwrap()
+    }
+}
+
+impl GenericParamsOwnerEdit for ast::TypeAlias {
+    fn get_or_create_generic_param_list(&self) -> ast::GenericParamList {
+        match self.generic_param_list() {
+            Some(it) => it,
+            None => {
+                let position = if let Some(name) = self.name() {
+                    Position::after(name.syntax)
+                } else if let Some(trait_token) = self.type_token() {
+                    Position::after(trait_token)
+                } else {
+                    Position::last_child_of(self.syntax())
+                };
+                create_generic_param_list(position)
+            }
+        }
+    }
+
+    fn get_or_create_where_clause(&self) -> ast::WhereClause {
+        if self.where_clause().is_none() {
+            let position = match self.eq_token() {
+                Some(tok) => Position::before(tok),
+                None => match self.semicolon_token() {
+                    Some(tok) => Position::before(tok),
+                    None => Position::last_child_of(self.syntax()),
+                },
+            };
+            create_where_clause(position);
+        }
+        self.where_clause().unwrap()
+    }
+}
+
 impl GenericParamsOwnerEdit for ast::Struct {
     fn get_or_create_generic_param_list(&self) -> ast::GenericParamList {
         match self.generic_param_list() {
diff --git a/crates/syntax/src/ast/make.rs b/crates/syntax/src/ast/make.rs
index 596f73e..fab4cb2 100644
--- a/crates/syntax/src/ast/make.rs
+++ b/crates/syntax/src/ast/make.rs
@@ -13,6 +13,7 @@
 
 mod quote;
 
+use either::Either;
 use itertools::Itertools;
 use parser::{Edition, T};
 use rowan::NodeOrToken;
@@ -881,7 +882,7 @@
 }
 
 pub fn where_pred(
-    path: ast::Type,
+    path: Either<ast::Lifetime, ast::Type>,
     bounds: impl IntoIterator<Item = ast::TypeBound>,
 ) -> ast::WherePred {
     let bounds = bounds.into_iter().join(" + ");
diff --git a/crates/syntax/src/ast/syntax_factory/constructors.rs b/crates/syntax/src/ast/syntax_factory/constructors.rs
index 8dee396..429e51b 100644
--- a/crates/syntax/src/ast/syntax_factory/constructors.rs
+++ b/crates/syntax/src/ast/syntax_factory/constructors.rs
@@ -585,6 +585,18 @@
         ast
     }
 
+    pub fn expr_underscore(&self) -> ast::UnderscoreExpr {
+        let ast::Expr::UnderscoreExpr(ast) = make::ext::expr_underscore().clone_for_update() else {
+            unreachable!()
+        };
+
+        if let Some(mut mapping) = self.mappings() {
+            SyntaxMappingBuilder::new(ast.syntax().clone()).finish(&mut mapping);
+        }
+
+        ast
+    }
+
     pub fn expr_if(
         &self,
         condition: ast::Expr,
diff --git a/crates/test-fixture/src/lib.rs b/crates/test-fixture/src/lib.rs
index f6ca5ab..96e1301 100644
--- a/crates/test-fixture/src/lib.rs
+++ b/crates/test-fixture/src/lib.rs
@@ -662,10 +662,6 @@
     ) -> Result<TopSubtree, ProcMacroExpansionError> {
         Ok(subtree.clone())
     }
-
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
-        other.as_any().type_id() == std::any::TypeId::of::<Self>()
-    }
 }
 
 // Expands to a macro_rules! macro, for issue #18089.
@@ -697,10 +693,6 @@
             #subtree
         })
     }
-
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
-        other.as_any().type_id() == std::any::TypeId::of::<Self>()
-    }
 }
 
 // Pastes the attribute input as its output
@@ -721,10 +713,6 @@
             .cloned()
             .ok_or_else(|| ProcMacroExpansionError::Panic("Expected attribute input".into()))
     }
-
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
-        other.as_any().type_id() == std::any::TypeId::of::<Self>()
-    }
 }
 
 #[derive(Debug)]
@@ -756,10 +744,6 @@
         top_subtree_delimiter_mut.close = def_site;
         Ok(result)
     }
-
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
-        other.as_any().type_id() == std::any::TypeId::of::<Self>()
-    }
 }
 
 #[derive(Debug)]
@@ -791,10 +775,6 @@
         traverse(&mut builder, input.iter());
         Ok(builder.build())
     }
-
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
-        other.as_any().type_id() == std::any::TypeId::of::<Self>()
-    }
 }
 
 // Replaces every literal with an empty string literal and every identifier with its first letter,
@@ -835,10 +815,6 @@
             }
         }
     }
-
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
-        other.as_any().type_id() == std::any::TypeId::of::<Self>()
-    }
 }
 
 // Reads ident type within string quotes, for issue #17479.
@@ -864,10 +840,6 @@
             #symbol()
         })
     }
-
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
-        other.as_any().type_id() == std::any::TypeId::of::<Self>()
-    }
 }
 
 // Reads ident type within string quotes, for issue #17479.
@@ -919,10 +891,6 @@
             }
         })
     }
-
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
-        other.as_any().type_id() == std::any::TypeId::of::<Self>()
-    }
 }
 
 // Reads ident type within string quotes, for issue #17479.
@@ -950,8 +918,4 @@
         }
         Ok(subtree.clone())
     }
-
-    fn eq_dyn(&self, other: &dyn ProcMacroExpander) -> bool {
-        other.as_any().type_id() == std::any::TypeId::of::<Self>()
-    }
 }
diff --git a/crates/tt/src/lib.rs b/crates/tt/src/lib.rs
index 1dbc07c..14574a6 100644
--- a/crates/tt/src/lib.rs
+++ b/crates/tt/src/lib.rs
@@ -817,6 +817,58 @@
     }
 }
 
+impl<S> Literal<S> {
+    pub fn display_no_minus(&self) -> impl fmt::Display {
+        struct NoMinus<'a, S>(&'a Literal<S>);
+        impl<S> fmt::Display for NoMinus<'_, S> {
+            fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+                let symbol =
+                    self.0.symbol.as_str().strip_prefix('-').unwrap_or(self.0.symbol.as_str());
+                match self.0.kind {
+                    LitKind::Byte => write!(f, "b'{symbol}'"),
+                    LitKind::Char => write!(f, "'{symbol}'"),
+                    LitKind::Integer | LitKind::Float | LitKind::Err(_) => write!(f, "{symbol}"),
+                    LitKind::Str => write!(f, "\"{symbol}\""),
+                    LitKind::ByteStr => write!(f, "b\"{symbol}\""),
+                    LitKind::CStr => write!(f, "c\"{symbol}\""),
+                    LitKind::StrRaw(num_of_hashes) => {
+                        let num_of_hashes = num_of_hashes as usize;
+                        write!(
+                            f,
+                            r#"r{0:#<num_of_hashes$}"{text}"{0:#<num_of_hashes$}"#,
+                            "",
+                            text = symbol
+                        )
+                    }
+                    LitKind::ByteStrRaw(num_of_hashes) => {
+                        let num_of_hashes = num_of_hashes as usize;
+                        write!(
+                            f,
+                            r#"br{0:#<num_of_hashes$}"{text}"{0:#<num_of_hashes$}"#,
+                            "",
+                            text = symbol
+                        )
+                    }
+                    LitKind::CStrRaw(num_of_hashes) => {
+                        let num_of_hashes = num_of_hashes as usize;
+                        write!(
+                            f,
+                            r#"cr{0:#<num_of_hashes$}"{text}"{0:#<num_of_hashes$}"#,
+                            "",
+                            text = symbol
+                        )
+                    }
+                }?;
+                if let Some(suffix) = &self.0.suffix {
+                    write!(f, "{suffix}")?;
+                }
+                Ok(())
+            }
+        }
+        NoMinus(self)
+    }
+}
+
 impl<S> fmt::Display for Literal<S> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self.kind {
diff --git a/docs/book/src/configuration_generated.md b/docs/book/src/configuration_generated.md
index 2ae73df..0e07dad 100644
--- a/docs/book/src/configuration_generated.md
+++ b/docs/book/src/configuration_generated.md
@@ -763,6 +763,13 @@
 How to render the offset information in a memory layout hover.
 
 
+## rust-analyzer.hover.memoryLayout.padding {#hover.memoryLayout.padding}
+
+Default: `null`
+
+How to render the padding information in a memory layout hover.
+
+
 ## rust-analyzer.hover.memoryLayout.size {#hover.memoryLayout.size}
 
 Default: `"both"`
@@ -835,7 +842,7 @@
 
 ## rust-analyzer.imports.prefix {#imports.prefix}
 
-Default: `"plain"`
+Default: `"crate"`
 
 The path structure for newly inserted paths to use.
 
diff --git a/docs/book/src/other_editors.md b/docs/book/src/other_editors.md
index 1eac7dd..896df52 100644
--- a/docs/book/src/other_editors.md
+++ b/docs/book/src/other_editors.md
@@ -364,30 +364,6 @@
 There are multiple rust-analyzer extensions for Visual Studio 2022 on
 Windows:
 
-### rust-analyzer.vs
-
-(License: Creative Commons Attribution-NonCommercial-ShareAlike 4.0
-International)
-
-[Visual Studio
-Marketplace](https://marketplace.visualstudio.com/items?itemName=kitamstudios.RustAnalyzer)
-
-[GitHub](https://github.com/kitamstudios/rust-analyzer/)
-
-Support for Rust development in the Visual Studio IDE is enabled by the
-[rust-analyzer](https://marketplace.visualstudio.com/items?itemName=kitamstudios.RustAnalyzer)
-package. Either click on the download link or install from IDE’s
-extension manager. For now [Visual Studio
-2022](https://visualstudio.microsoft.com/downloads/) is required. All
-editions are supported viz. Community, Professional & Enterprise. The
-package aims to provide 0-friction installation and therefore comes
-loaded with most things required including rust-analyzer binary. If
-anything it needs is missing, appropriate errors / warnings will guide
-the user. E.g. cargo.exe needs to be in path and the package will tell
-you as much. This package is under rapid active development. So if you
-encounter any issues please file it at
-[rust-analyzer.vs](https://github.com/kitamstudios/rust-analyzer/).
-
 ### VS RustAnalyzer
 
 (License: GPL)
diff --git a/editors/code/package-lock.json b/editors/code/package-lock.json
index 11a37c2..18fb097 100644
--- a/editors/code/package-lock.json
+++ b/editors/code/package-lock.json
@@ -5730,9 +5730,9 @@
             "license": "MIT"
         },
         "node_modules/undici": {
-            "version": "6.21.1",
-            "resolved": "https://registry.npmjs.org/undici/-/undici-6.21.1.tgz",
-            "integrity": "sha512-q/1rj5D0/zayJB2FraXdaWxbhWiNKDvu8naDT2dl1yTlvJp4BLtOcp2a5BvgGNQpYYJzau7tf1WgKv3b+7mqpQ==",
+            "version": "6.21.3",
+            "resolved": "https://registry.npmjs.org/undici/-/undici-6.21.3.tgz",
+            "integrity": "sha512-gBLkYIlEnSp8pFbT64yFgGE6UIB9tAkhukC23PmMDCe5Nd+cRqKxSjw5y54MK2AZMgZfJWMaNE4nYUHgi1XEOw==",
             "dev": true,
             "license": "MIT",
             "engines": {
diff --git a/editors/code/package.json b/editors/code/package.json
index a282eea..c8c36cd 100644
--- a/editors/code/package.json
+++ b/editors/code/package.json
@@ -1782,6 +1782,33 @@
             {
                 "title": "hover",
                 "properties": {
+                    "rust-analyzer.hover.memoryLayout.padding": {
+                        "markdownDescription": "How to render the padding information in a memory layout hover.",
+                        "default": null,
+                        "anyOf": [
+                            {
+                                "type": "null"
+                            },
+                            {
+                                "type": "string",
+                                "enum": [
+                                    "both",
+                                    "decimal",
+                                    "hexadecimal"
+                                ],
+                                "enumDescriptions": [
+                                    "Render as 12 (0xC)",
+                                    "Render as 12",
+                                    "Render as 0xC"
+                                ]
+                            }
+                        ]
+                    }
+                }
+            },
+            {
+                "title": "hover",
+                "properties": {
                     "rust-analyzer.hover.memoryLayout.size": {
                         "markdownDescription": "How to render the size information in a memory layout hover.",
                         "default": "both",
@@ -1927,7 +1954,7 @@
                 "properties": {
                     "rust-analyzer.imports.prefix": {
                         "markdownDescription": "The path structure for newly inserted paths to use.",
-                        "default": "plain",
+                        "default": "crate",
                         "type": "string",
                         "enum": [
                             "plain",
diff --git a/rust-version b/rust-version
index 90e4d65..5b47d1b 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-6e23095adf9209614a45f7f75fea36dad7b92afb
+a8e4c68dcb4dc1e48a0db294c5323cab0227fcb9
diff --git a/xtask/Cargo.toml b/xtask/Cargo.toml
index 6195de5..bb7d83c 100644
--- a/xtask/Cargo.toml
+++ b/xtask/Cargo.toml
@@ -14,7 +14,7 @@
 xshell.workspace = true
 xflags = "0.3.2"
 time = { version = "0.3", default-features = false }
-zip = { version = "2.4", default-features = false, features = ["deflate-flate2", "flate2", "time"] }
+zip = { version = "3.0", default-features = false, features = ["deflate-flate2", "time"] }
 stdx.workspace = true
 proc-macro2 = "1.0.94"
 quote = "1.0.40"