Auto merge of #64661 - Mark-Simulacrum:beta-next, r=Mark-Simulacrum
[beta] rollup of last set of backports
* ci: split aws credentials in two separate users with scoped perms #64576
* Updated RELEASES.md for 1.38.0 #64283
* Add Compatibility Notes to RELEASES.md for 1.38.0 #64621
diff --git a/RELEASES.md b/RELEASES.md
index f26f6e6..ecf4927 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -1,3 +1,117 @@
+Version 1.38.0 (2019-09-26)
+==========================
+
+Language
+--------
+- [The `#[global_allocator]` attribute can now be used in submodules.][62735]
+- [The `#[deprecated]` attribute can now be used on macros.][62042]
+
+Compiler
+--------
+- [Added pipelined compilation support to `rustc`.][62766] This will
+ improve compilation times in some cases. For further information please refer
+ to the [_"Evaluating pipelined rustc compilation"_][pipeline-internals] thread.
+- [Added tier 3\* support for the `aarch64-uwp-windows-msvc`, `i686-uwp-windows-gnu`,
+ `i686-uwp-windows-msvc`, `x86_64-uwp-windows-gnu`, and
+ `x86_64-uwp-windows-msvc` targets.][60260]
+- [Added tier 3 support for the `armv7-unknown-linux-gnueabi` and
+ `armv7-unknown-linux-musleabi` targets.][63107]
+- [Added tier 3 support for the `hexagon-unknown-linux-musl` target.][62814]
+- [Added tier 3 support for the `riscv32i-unknown-none-elf` target.][62784]
+
+\* Refer to Rust's [platform support page][forge-platform-support] for more
+information on Rust's tiered platform support.
+
+Libraries
+---------
+- [`ascii::EscapeDefault` now implements `Clone` and `Display`.][63421]
+- [Derive macros for prelude traits (e.g. `Clone`, `Debug`, `Hash`) are now
+ available at the same path as the trait.][63056] (e.g. The `Clone` derive macro
+ is available at `std::clone::Clone`). This also makes all built-in macros
+ available in `std`/`core` root. e.g. `std::include_bytes!`.
+- [`str::Chars` now implements `Debug`.][63000]
+- [`slice::{concat, connect, join}` now accepts `&[T]` in addition to `&T`.][62528]
+- [`*const T` and `*mut T` now implement `marker::Unpin`.][62583]
+- [`Arc<[T]>` and `Rc<[T]>` now implement `FromIterator<T>`.][61953]
+- [Added euclidean remainder and division operations (`div_euclid`,
+ `rem_euclid`) to all numeric primitives.][61884] Additionally `checked`,
+ `overflowing`, and `wrapping` versions are available for all
+ integer primitives.
+- [`thread::AccessError` now implements `Clone`, `Copy`, `Eq`, `Error`, and
+ `PartialEq`.][61491]
+- [`iter::{StepBy, Peekable, Take}` now implement `DoubleEndedIterator`.][61457]
+
+Stabilized APIs
+---------------
+- [`<*const T>::cast`]
+- [`<*mut T>::cast`]
+- [`Duration::as_secs_f32`]
+- [`Duration::as_secs_f64`]
+- [`Duration::div_duration_f32`]
+- [`Duration::div_duration_f64`]
+- [`Duration::div_f32`]
+- [`Duration::div_f64`]
+- [`Duration::from_secs_f32`]
+- [`Duration::from_secs_f64`]
+- [`Duration::mul_f32`]
+- [`Duration::mul_f64`]
+- [`any::type_name`]
+
+Cargo
+-----
+- [Added pipelined compilation support to `cargo`.][cargo/7143]
+- [You can now pass the `--features` option multiple times to enable
+ multiple features.][cargo/7084]
+
+Misc
+----
+- [`rustc` will now warn about some incorrect uses of
+ `mem::{uninitialized, zeroed}` that are known to cause undefined behaviour.][63346]
+
+Compatibility Notes
+-------------------
+- Unfortunately the [`x86_64-unknown-uefi` platform can not be built][62785]
+ with rustc 1.39.0.
+- The [`armv7-unknown-linux-gnueabihf` platform is also known to have
+ issues][62896] for certain crates such as libc.
+
+[60260]: https://github.com/rust-lang/rust/pull/60260/
+[61457]: https://github.com/rust-lang/rust/pull/61457/
+[61491]: https://github.com/rust-lang/rust/pull/61491/
+[61884]: https://github.com/rust-lang/rust/pull/61884/
+[61953]: https://github.com/rust-lang/rust/pull/61953/
+[62042]: https://github.com/rust-lang/rust/pull/62042/
+[62528]: https://github.com/rust-lang/rust/pull/62528/
+[62583]: https://github.com/rust-lang/rust/pull/62583/
+[62735]: https://github.com/rust-lang/rust/pull/62735/
+[62766]: https://github.com/rust-lang/rust/pull/62766/
+[62784]: https://github.com/rust-lang/rust/pull/62784/
+[62785]: https://github.com/rust-lang/rust/issues/62785/
+[62814]: https://github.com/rust-lang/rust/pull/62814/
+[62896]: https://github.com/rust-lang/rust/issues/62896/
+[63000]: https://github.com/rust-lang/rust/pull/63000/
+[63056]: https://github.com/rust-lang/rust/pull/63056/
+[63107]: https://github.com/rust-lang/rust/pull/63107/
+[63346]: https://github.com/rust-lang/rust/pull/63346/
+[63421]: https://github.com/rust-lang/rust/pull/63421/
+[cargo/7084]: https://github.com/rust-lang/cargo/pull/7084/
+[cargo/7143]: https://github.com/rust-lang/cargo/pull/7143/
+[`<*const T>::cast`]: https://doc.rust-lang.org/std/primitive.pointer.html#method.cast
+[`<*mut T>::cast`]: https://doc.rust-lang.org/std/primitive.pointer.html#method.cast
+[`Duration::as_secs_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.as_secs_f32
+[`Duration::as_secs_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.as_secs_f64
+[`Duration::div_duration_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_duration_f32
+[`Duration::div_duration_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_duration_f64
+[`Duration::div_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_f32
+[`Duration::div_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_f64
+[`Duration::from_secs_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.from_secs_f32
+[`Duration::from_secs_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.from_secs_f64
+[`Duration::mul_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.mul_f32
+[`Duration::mul_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.mul_f64
+[`any::type_name`]: https://doc.rust-lang.org/std/any/fn.type_name.html
+[forge-platform-support]: https://forge.rust-lang.org/platform-support.html
+[pipeline-internals]: https://internals.rust-lang.org/t/evaluating-pipelined-rustc-compilation/10199
+
Version 1.37.0 (2019-08-15)
==========================
diff --git a/src/ci/azure-pipelines/auto.yml b/src/ci/azure-pipelines/auto.yml
index 06fa3bd..0c7c734 100644
--- a/src/ci/azure-pipelines/auto.yml
+++ b/src/ci/azure-pipelines/auto.yml
@@ -7,7 +7,7 @@
- auto
variables:
-- group: real-prod-credentials
+- group: prod-credentials
jobs:
- job: Linux
diff --git a/src/ci/azure-pipelines/master.yml b/src/ci/azure-pipelines/master.yml
index 9742c71..e2baa92 100644
--- a/src/ci/azure-pipelines/master.yml
+++ b/src/ci/azure-pipelines/master.yml
@@ -7,7 +7,7 @@
- master
variables:
-- group: real-prod-credentials
+- group: prod-credentials
pool:
vmImage: ubuntu-16.04
diff --git a/src/ci/azure-pipelines/steps/run.yml b/src/ci/azure-pipelines/steps/run.yml
index ca32888..a8791b4 100644
--- a/src/ci/azure-pipelines/steps/run.yml
+++ b/src/ci/azure-pipelines/steps/run.yml
@@ -168,7 +168,8 @@
env:
CI: true
SRC: .
- AWS_SECRET_ACCESS_KEY: $(AWS_SECRET_ACCESS_KEY)
+ AWS_ACCESS_KEY_ID: $(SCCACHE_AWS_ACCESS_KEY_ID)
+ AWS_SECRET_ACCESS_KEY: $(SCCACHE_AWS_SECRET_ACCESS_KEY)
TOOLSTATE_REPO_ACCESS_TOKEN: $(TOOLSTATE_REPO_ACCESS_TOKEN)
condition: and(succeeded(), not(variables.SKIP_JOB))
displayName: Run build
@@ -192,7 +193,8 @@
fi
retry aws s3 cp --no-progress --recursive --acl public-read ./$upload_dir s3://$DEPLOY_BUCKET/$deploy_dir/$BUILD_SOURCEVERSION
env:
- AWS_SECRET_ACCESS_KEY: $(AWS_SECRET_ACCESS_KEY)
+ AWS_ACCESS_KEY_ID: $(UPLOAD_AWS_ACCESS_KEY_ID)
+ AWS_SECRET_ACCESS_KEY: $(UPLOAD_AWS_SECRET_ACCESS_KEY)
condition: and(succeeded(), not(variables.SKIP_JOB), or(eq(variables.DEPLOY, '1'), eq(variables.DEPLOY_ALT, '1')))
displayName: Upload artifacts
@@ -201,7 +203,8 @@
# errors here ever fail the build since this is just informational.
- bash: aws s3 cp --acl public-read cpu-usage.csv s3://$DEPLOY_BUCKET/rustc-builds/$BUILD_SOURCEVERSION/cpu-$SYSTEM_JOBNAME.csv
env:
- AWS_SECRET_ACCESS_KEY: $(AWS_SECRET_ACCESS_KEY)
- condition: variables['AWS_SECRET_ACCESS_KEY']
+ AWS_ACCESS_KEY_ID: $(UPLOAD_AWS_ACCESS_KEY_ID)
+ AWS_SECRET_ACCESS_KEY: $(UPLOAD_AWS_SECRET_ACCESS_KEY)
+ condition: variables['UPLOAD_AWS_SECRET_ACCESS_KEY']
continueOnError: true
displayName: Upload CPU usage statistics
diff --git a/src/ci/azure-pipelines/try.yml b/src/ci/azure-pipelines/try.yml
index 0df6c6c..c919b10 100644
--- a/src/ci/azure-pipelines/try.yml
+++ b/src/ci/azure-pipelines/try.yml
@@ -3,7 +3,7 @@
- try
variables:
-- group: real-prod-credentials
+- group: prod-credentials
jobs:
- job: Linux
diff --git a/src/librustc_mir/hair/pattern/mod.rs b/src/librustc_mir/hair/pattern/mod.rs
index 5ecfb84..c82bb5d 100644
--- a/src/librustc_mir/hair/pattern/mod.rs
+++ b/src/librustc_mir/hair/pattern/mod.rs
@@ -1203,7 +1203,13 @@
ty::RawPtr(..) => {
// `#[structural_match]` ignores substructure of
// `*const _`/`*mut _`, so skip super_visit_with
-
+ //
+ // (But still tell caller to continue search.)
+ return false;
+ }
+ ty::FnDef(..) | ty::FnPtr(..) => {
+ // types of formals and return in `fn(_) -> _` are also irrelevant
+ //
// (But still tell caller to continue search.)
return false;
}
diff --git a/src/test/ui/rfc1445/fn-ptr-is-structurally-matchable.rs b/src/test/ui/rfc1445/fn-ptr-is-structurally-matchable.rs
new file mode 100644
index 0000000..5b378fb
--- /dev/null
+++ b/src/test/ui/rfc1445/fn-ptr-is-structurally-matchable.rs
@@ -0,0 +1,135 @@
+// run-pass
+
+// This file checks that fn ptrs are considered structurally matchable.
+// See also rust-lang/rust#63479.
+
+fn main() {
+ let mut count = 0;
+
+ // A type which is not structurally matchable:
+ struct NotSM;
+
+ // And one that is:
+ #[derive(PartialEq, Eq)]
+ struct SM;
+
+ fn trivial() {}
+
+ fn sm_to(_: SM) {}
+ fn not_sm_to(_: NotSM) {}
+ fn to_sm() -> SM { SM }
+ fn to_not_sm() -> NotSM { NotSM }
+
+ // To recreate the scenario of interest in #63479, we need to add
+ // a ref-level-of-indirection so that we descend into the type.
+
+ fn r_sm_to(_: &SM) {}
+ fn r_not_sm_to(_: &NotSM) {}
+ fn r_to_r_sm(_: &()) -> &SM { &SM }
+ fn r_to_r_not_sm(_: &()) -> &NotSM { &NotSM }
+
+ #[derive(PartialEq, Eq)]
+ struct Wrap<T>(T);
+
+ // In the code below, we put the match input into a local so that
+ // we can assign it an explicit type that is an fn ptr instead of
+ // a singleton type of the fn itself that the type inference would
+ // otherwise assign.
+
+ // Check that fn() is #[structural_match]
+ const CFN1: Wrap<fn()> = Wrap(trivial);
+ let input: Wrap<fn()> = Wrap(trivial);
+ match Wrap(input) {
+ Wrap(CFN1) => count += 1,
+ Wrap(_) => {}
+ };
+
+ // Check that fn(T) is #[structural_match] when T is too.
+ const CFN2: Wrap<fn(SM)> = Wrap(sm_to);
+ let input: Wrap<fn(SM)> = Wrap(sm_to);
+ match Wrap(input) {
+ Wrap(CFN2) => count += 1,
+ Wrap(_) => {}
+ };
+
+ // Check that fn() -> T is #[structural_match] when T is too.
+ const CFN3: Wrap<fn() -> SM> = Wrap(to_sm);
+ let input: Wrap<fn() -> SM> = Wrap(to_sm);
+ match Wrap(input) {
+ Wrap(CFN3) => count += 1,
+ Wrap(_) => {}
+ };
+
+ // Check that fn(T) is #[structural_match] even if T is not.
+ const CFN4: Wrap<fn(NotSM)> = Wrap(not_sm_to);
+ let input: Wrap<fn(NotSM)> = Wrap(not_sm_to);
+ match Wrap(input) {
+ Wrap(CFN4) => count += 1,
+ Wrap(_) => {}
+ };
+
+ // Check that fn() -> T is #[structural_match] even if T is not.
+ const CFN5: Wrap<fn() -> NotSM> = Wrap(to_not_sm);
+ let input: Wrap<fn() -> NotSM> = Wrap(to_not_sm);
+ match Wrap(input) {
+ Wrap(CFN5) => count += 1,
+ Wrap(_) => {}
+ };
+
+ // Check that fn(&T) is #[structural_match] when T is too.
+ const CFN6: Wrap<fn(&SM)> = Wrap(r_sm_to);
+ let input: Wrap<fn(&SM)> = Wrap(r_sm_to);
+ match Wrap(input) {
+ Wrap(CFN6) => count += 1,
+ Wrap(_) => {}
+ };
+
+ // Check that fn() -> &T is #[structural_match] when T is too.
+ const CFN7: Wrap<fn(&()) -> &SM> = Wrap(r_to_r_sm);
+ let input: Wrap<fn(&()) -> &SM> = Wrap(r_to_r_sm);
+ match Wrap(input) {
+ Wrap(CFN7) => count += 1,
+ Wrap(_) => {}
+ };
+
+ // Check that fn(T) is #[structural_match] even if T is not.
+ const CFN8: Wrap<fn(&NotSM)> = Wrap(r_not_sm_to);
+ let input: Wrap<fn(&NotSM)> = Wrap(r_not_sm_to);
+ match Wrap(input) {
+ Wrap(CFN8) => count += 1,
+ Wrap(_) => {}
+ };
+
+ // Check that fn() -> T is #[structural_match] even if T is not.
+ const CFN9: Wrap<fn(&()) -> &NotSM> = Wrap(r_to_r_not_sm);
+ let input: Wrap<fn(&()) -> &NotSM> = Wrap(r_to_r_not_sm);
+ match Wrap(input) {
+ Wrap(CFN9) => count += 1,
+ Wrap(_) => {}
+ };
+
+ // Check that a type which has fn ptrs is `#[structural_match]`.
+ #[derive(PartialEq, Eq)]
+ struct Foo {
+ alpha: fn(NotSM),
+ beta: fn() -> NotSM,
+ gamma: fn(SM),
+ delta: fn() -> SM,
+ }
+
+ const CFOO: Foo = Foo {
+ alpha: not_sm_to,
+ beta: to_not_sm,
+ gamma: sm_to,
+ delta: to_sm,
+ };
+
+ let input = Foo { alpha: not_sm_to, beta: to_not_sm, gamma: sm_to, delta: to_sm };
+ match input {
+ CFOO => count += 1,
+ Foo { .. } => {}
+ };
+
+ // Final count must be 10 now if all
+ assert_eq!(count, 10);
+}
diff --git a/src/test/ui/rfc1445/issue-63479-match-fnptr.rs b/src/test/ui/rfc1445/issue-63479-match-fnptr.rs
new file mode 100644
index 0000000..b3c91ce
--- /dev/null
+++ b/src/test/ui/rfc1445/issue-63479-match-fnptr.rs
@@ -0,0 +1,36 @@
+// run-pass
+
+// The actual regression test from #63479. (Including this because my
+// first draft at fn-ptr-is-structurally-matchable.rs failed to actually
+// cover the case this hit; I've since expanded it accordingly, but the
+// experience left me wary of leaving this regression test out.)
+
+#[derive(Eq)]
+struct A {
+ a: i64
+}
+
+impl PartialEq for A {
+ #[inline]
+ fn eq(&self, other: &Self) -> bool {
+ self.a.eq(&other.a)
+ }
+}
+
+type Fn = fn(&[A]);
+
+fn my_fn(_args: &[A]) {
+ println!("hello world");
+}
+
+const TEST: Fn = my_fn;
+
+struct B(Fn);
+
+fn main() {
+ let s = B(my_fn);
+ match s {
+ B(TEST) => println!("matched"),
+ _ => panic!("didn't match")
+ };
+}
