Merge #11974

11974: minor: prepare CI for rust-lang move r=Veykril a=Veykril

bors r+

Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
diff --git a/Cargo.lock b/Cargo.lock
index aeea1d9..cea8540 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -171,9 +171,9 @@
 
 [[package]]
 name = "chalk-derive"
-version = "0.81.0"
+version = "0.82.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0bb2ca8aa9da8210effebb51e49b4bd8bc25c06df38220d58a60df35a08a84af"
+checksum = "ee9cd790d543c29ce953abcb28d54b9fbaf9c4033bfd3024de99b1aa0f3c3ada"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -183,9 +183,9 @@
 
 [[package]]
 name = "chalk-ir"
-version = "0.81.0"
+version = "0.82.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e128fa3652ef2cdd5a7e64e0cc5a89f40170f80dd9f6357ba4a82cf027abd0d5"
+checksum = "dddf2c11f9de666c08c7591eb113efcdc740bd8ac602915475b045bcbe7f27a5"
 dependencies = [
  "bitflags",
  "chalk-derive",
@@ -194,9 +194,9 @@
 
 [[package]]
 name = "chalk-recursive"
-version = "0.81.0"
+version = "0.82.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea6fcba1e8b66a291430b6aa18368a95da0577d7f126653baae71c0cb0f3d093"
+checksum = "a60d5b35598702963ffd145b8bfa0d8d8ae9da3a731e4e0814aa21541b85c2d5"
 dependencies = [
  "chalk-derive",
  "chalk-ir",
@@ -207,9 +207,9 @@
 
 [[package]]
 name = "chalk-solve"
-version = "0.81.0"
+version = "0.82.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43151ddc627d8dfbde6af44405cb8e98a15828f66a3d4a3da6a1fad6c5dc4687"
+checksum = "d99da4fa3b224c07f6c2506e6905bca9d6aad665f11d25364e6818a7ea149215"
 dependencies = [
  "chalk-derive",
  "chalk-ir",
diff --git a/crates/hir_ty/Cargo.toml b/crates/hir_ty/Cargo.toml
index efcd5ff..1fe5788 100644
--- a/crates/hir_ty/Cargo.toml
+++ b/crates/hir_ty/Cargo.toml
@@ -18,9 +18,9 @@
 tracing = "0.1.32"
 rustc-hash = "1.1.0"
 scoped-tls = "1.0.0"
-chalk-solve = { version = "0.81.0", default-features = false }
-chalk-ir = "0.81.0"
-chalk-recursive = { version = "0.81.0", default-features = false }
+chalk-solve = { version = "0.82.0", default-features = false }
+chalk-ir = "0.82.0"
+chalk-recursive = { version = "0.82.0", default-features = false }
 la-arena = { version = "0.3.0", path = "../../lib/arena" }
 once_cell = "1.10.0"
 typed-arena = "2.0.1"
diff --git a/crates/ide/src/rename.rs b/crates/ide/src/rename.rs
index 1bb3cdb..f5bff5f 100644
--- a/crates/ide/src/rename.rs
+++ b/crates/ide/src/rename.rs
@@ -968,15 +968,21 @@
                         },
                     },
                     file_system_edits: [
-                        MoveFile {
-                            src: FileId(
+                        MoveDir {
+                            src: AnchoredPathBuf {
+                                anchor: FileId(
+                                    1,
+                                ),
+                                path: "foo",
+                            },
+                            src_id: FileId(
                                 1,
                             ),
                             dst: AnchoredPathBuf {
                                 anchor: FileId(
                                     1,
                                 ),
-                                path: "../foo2/mod.rs",
+                                path: "foo2",
                             },
                         },
                     ],
@@ -1114,6 +1120,68 @@
     }
 
     #[test]
+    fn test_rename_mod_recursive() {
+        check_expect(
+            "foo2",
+            r#"
+//- /lib.rs
+mod foo$0;
+
+//- /foo.rs
+mod bar;
+mod corge;
+
+//- /foo/bar.rs
+mod qux;
+
+//- /foo/bar/qux.rs
+mod quux;
+
+//- /foo/bar/qux/quux/mod.rs
+// empty
+
+//- /foo/corge.rs
+// empty
+"#,
+            expect![[r#"
+                SourceChange {
+                    source_file_edits: {
+                        FileId(
+                            0,
+                        ): TextEdit {
+                            indels: [
+                                Indel {
+                                    insert: "foo2",
+                                    delete: 4..7,
+                                },
+                            ],
+                        },
+                    },
+                    file_system_edits: [
+                        MoveDir {
+                            src: AnchoredPathBuf {
+                                anchor: FileId(
+                                    1,
+                                ),
+                                path: "foo",
+                            },
+                            src_id: FileId(
+                                1,
+                            ),
+                            dst: AnchoredPathBuf {
+                                anchor: FileId(
+                                    1,
+                                ),
+                                path: "foo2",
+                            },
+                        },
+                    ],
+                    is_snippet: false,
+                }
+            "#]],
+        )
+    }
+    #[test]
     fn test_rename_mod_ref_by_super() {
         check(
             "baz",
diff --git a/crates/ide_assists/src/tests.rs b/crates/ide_assists/src/tests.rs
index 09260c1..b3a0bd2 100644
--- a/crates/ide_assists/src/tests.rs
+++ b/crates/ide_assists/src/tests.rs
@@ -162,6 +162,10 @@
                     FileSystemEdit::MoveFile { src, dst } => {
                         (dst, db.file_text(src).as_ref().to_owned())
                     }
+                    FileSystemEdit::MoveDir { src, src_id, dst } => {
+                        // temporary placeholder for MoveDir since we are not using MoveDir in ide assists yet.
+                        (dst, format!("{:?}\n{:?}", src_id, src))
+                    }
                 };
                 let sr = db.file_source_root(dst.anchor);
                 let sr = db.source_root(sr);
diff --git a/crates/ide_completion/src/completions.rs b/crates/ide_completion/src/completions.rs
index 7dbc511..b8a904a 100644
--- a/crates/ide_completion/src/completions.rs
+++ b/crates/ide_completion/src/completions.rs
@@ -126,7 +126,7 @@
             cov_mark::hit!(qualified_path_doc_hidden);
             return;
         }
-        self.add(render_resolution(RenderContext::new(ctx), local_name, resolution));
+        self.add(render_resolution(RenderContext::new(ctx), local_name, resolution).build());
     }
 
     pub(crate) fn add_resolution_simple(
@@ -138,7 +138,7 @@
         if ctx.is_scope_def_hidden(resolution) {
             return;
         }
-        self.add(render_resolution_simple(RenderContext::new(ctx), local_name, resolution));
+        self.add(render_resolution_simple(RenderContext::new(ctx), local_name, resolution).build());
     }
 
     pub(crate) fn add_macro(
@@ -152,11 +152,14 @@
             Visible::Editable => true,
             Visible::No => return,
         };
-        self.add(render_macro(
-            RenderContext::new(ctx).private_editable(is_private_editable),
-            local_name,
-            mac,
-        ));
+        self.add(
+            render_macro(
+                RenderContext::new(ctx).private_editable(is_private_editable),
+                local_name,
+                mac,
+            )
+            .build(),
+        );
     }
 
     pub(crate) fn add_function(
@@ -170,11 +173,14 @@
             Visible::Editable => true,
             Visible::No => return,
         };
-        self.add(render_fn(
-            RenderContext::new(ctx).private_editable(is_private_editable),
-            local_name,
-            func,
-        ));
+        self.add(
+            render_fn(
+                RenderContext::new(ctx).private_editable(is_private_editable),
+                local_name,
+                func,
+            )
+            .build(),
+        );
     }
 
     pub(crate) fn add_method(
@@ -189,12 +195,15 @@
             Visible::Editable => true,
             Visible::No => return,
         };
-        self.add(render_method(
-            RenderContext::new(ctx).private_editable(is_private_editable),
-            receiver,
-            local_name,
-            func,
-        ));
+        self.add(
+            render_method(
+                RenderContext::new(ctx).private_editable(is_private_editable),
+                receiver,
+                local_name,
+                func,
+            )
+            .build(),
+        );
     }
 
     pub(crate) fn add_const(&mut self, ctx: &CompletionContext, konst: hir::Const) {
@@ -235,7 +244,11 @@
         variant: hir::Variant,
         path: hir::ModPath,
     ) {
-        self.add_opt(render_variant_lit(RenderContext::new(ctx), None, variant, Some(path)));
+        if let Some(builder) =
+            render_variant_lit(RenderContext::new(ctx), None, variant, Some(path))
+        {
+            self.add(builder.build());
+        }
     }
 
     pub(crate) fn add_enum_variant(
@@ -244,7 +257,11 @@
         variant: hir::Variant,
         local_name: Option<hir::Name>,
     ) {
-        self.add_opt(render_variant_lit(RenderContext::new(ctx), local_name, variant, None));
+        if let Some(builder) =
+            render_variant_lit(RenderContext::new(ctx), local_name, variant, None)
+        {
+            self.add(builder.build());
+        }
     }
 
     pub(crate) fn add_field(
@@ -275,8 +292,11 @@
         path: Option<hir::ModPath>,
         local_name: Option<hir::Name>,
     ) {
-        let item = render_struct_literal(RenderContext::new(ctx), strukt, path, local_name);
-        self.add_opt(item);
+        if let Some(builder) =
+            render_struct_literal(RenderContext::new(ctx), strukt, path, local_name)
+        {
+            self.add(builder.build());
+        }
     }
 
     pub(crate) fn add_union_literal(
diff --git a/crates/ide_completion/src/completions/flyimport.rs b/crates/ide_completion/src/completions/flyimport.rs
index fb857ae..76d708a 100644
--- a/crates/ide_completion/src/completions/flyimport.rs
+++ b/crates/ide_completion/src/completions/flyimport.rs
@@ -205,7 +205,8 @@
                     &user_input_lowercased,
                 )
             })
-            .filter_map(|import| render_resolution_with_import(RenderContext::new(ctx), import)),
+            .filter_map(|import| render_resolution_with_import(RenderContext::new(ctx), import))
+            .map(|builder| builder.build()),
     );
     Some(())
 }
diff --git a/crates/ide_completion/src/completions/trait_impl.rs b/crates/ide_completion/src/completions/trait_impl.rs
index 13e0504..43428f7 100644
--- a/crates/ide_completion/src/completions/trait_impl.rs
+++ b/crates/ide_completion/src/completions/trait_impl.rs
@@ -167,7 +167,7 @@
     };
 
     let mut item = CompletionItem::new(completion_kind, replacement_range, label);
-    item.lookup_by(fn_name)
+    item.lookup_by(format!("fn {}", fn_name))
         .set_documentation(func.docs(ctx.db))
         .set_relevance(CompletionRelevance { is_item_from_trait: true, ..Default::default() });
 
@@ -228,13 +228,17 @@
     let alias_name = type_alias.name(ctx.db).to_smol_str();
 
     let label = format!("type {} =", alias_name);
-    let snippet = format!("type {} = ", alias_name);
+    let replacement = format!("type {} = ", alias_name);
 
     let mut item = CompletionItem::new(SymbolKind::TypeAlias, replacement_range, label);
-    item.text_edit(TextEdit::replace(replacement_range, snippet))
-        .lookup_by(alias_name)
+    item.lookup_by(format!("type {}", alias_name))
         .set_documentation(type_alias.docs(ctx.db))
         .set_relevance(CompletionRelevance { is_item_from_trait: true, ..Default::default() });
+    match ctx.config.snippet_cap {
+        Some(cap) => item
+            .snippet_edit(cap, TextEdit::replace(replacement_range, format!("{}$0;", replacement))),
+        None => item.text_edit(TextEdit::replace(replacement_range, replacement)),
+    };
     item.add_to(acc);
 }
 
@@ -257,16 +261,22 @@
                 };
 
                 let label = make_const_compl_syntax(&transformed_const);
-                let snippet = format!("{} ", label);
+                let replacement = format!("{} ", label);
 
                 let mut item = CompletionItem::new(SymbolKind::Const, replacement_range, label);
-                item.text_edit(TextEdit::replace(replacement_range, snippet))
-                    .lookup_by(const_name)
+                item.lookup_by(format!("const {}", const_name))
                     .set_documentation(const_.docs(ctx.db))
                     .set_relevance(CompletionRelevance {
                         is_item_from_trait: true,
                         ..Default::default()
                     });
+                match ctx.config.snippet_cap {
+                    Some(cap) => item.snippet_edit(
+                        cap,
+                        TextEdit::replace(replacement_range, format!("{}$0;", replacement)),
+                    ),
+                    None => item.text_edit(TextEdit::replace(replacement_range, replacement)),
+                };
                 item.add_to(acc);
             }
         }
@@ -549,7 +559,7 @@
     #[test]
     fn name_ref_single_function() {
         check_edit(
-            "test",
+            "fn test",
             r#"
 trait Test {
     fn test();
@@ -578,7 +588,7 @@
     #[test]
     fn single_function() {
         check_edit(
-            "test",
+            "fn test",
             r#"
 trait Test {
     fn test();
@@ -607,7 +617,7 @@
     #[test]
     fn generic_fn() {
         check_edit(
-            "foo",
+            "fn foo",
             r#"
 trait Test {
     fn foo<T>();
@@ -632,7 +642,7 @@
 "#,
         );
         check_edit(
-            "foo",
+            "fn foo",
             r#"
 trait Test {
     fn foo<T>() where T: Into<String>;
@@ -662,7 +672,7 @@
     #[test]
     fn associated_type() {
         check_edit(
-            "SomeType",
+            "type SomeType",
             r#"
 trait Test {
     type SomeType;
@@ -678,7 +688,7 @@
 }
 
 impl Test for () {
-    type SomeType = \n\
+    type SomeType = $0;\n\
 }
 ",
         );
@@ -687,7 +697,7 @@
     #[test]
     fn associated_const() {
         check_edit(
-            "SOME_CONST",
+            "const SOME_CONST",
             r#"
 trait Test {
     const SOME_CONST: u16;
@@ -703,13 +713,13 @@
 }
 
 impl Test for () {
-    const SOME_CONST: u16 = \n\
+    const SOME_CONST: u16 = $0;\n\
 }
 ",
         );
 
         check_edit(
-            "SOME_CONST",
+            "const SOME_CONST",
             r#"
 trait Test {
     const SOME_CONST: u16 = 92;
@@ -725,7 +735,7 @@
 }
 
 impl Test for () {
-    const SOME_CONST: u16 = \n\
+    const SOME_CONST: u16 = $0;\n\
 }
 ",
         );
@@ -783,9 +793,9 @@
             "default type OtherType = i32;",
             "default const OTHER_CONST: i32 = 0;",
         ] {
-            test("bar", "fn $0", "fn bar() {\n    $0\n}", next_sibling);
-            test("Foo", "type $0", "type Foo = ", next_sibling);
-            test("CONST", "const $0", "const CONST: u16 = ", next_sibling);
+            test("fn bar", "fn $0", "fn bar() {\n    $0\n}", next_sibling);
+            test("type Foo", "type $0", "type Foo = $0;", next_sibling);
+            test("const CONST", "const $0", "const CONST: u16 = $0;", next_sibling);
         }
     }
 
@@ -830,15 +840,15 @@
                 ),
             )
         };
-        test("function", "fn f$0", "fn function() {\n    $0\n}");
-        test("Type", "type T$0", "type Type = ");
-        test("CONST", "const C$0", "const CONST: i32 = ");
+        test("fn function", "fn f$0", "fn function() {\n    $0\n}");
+        test("type Type", "type T$0", "type Type = $0;");
+        test("const CONST", "const C$0", "const CONST: i32 = $0;");
     }
 
     #[test]
     fn generics_are_inlined_in_return_type() {
         check_edit(
-            "function",
+            "fn function",
             r#"
 trait Foo<T> {
     fn function() -> T;
@@ -867,7 +877,7 @@
     #[test]
     fn generics_are_inlined_in_parameter() {
         check_edit(
-            "function",
+            "fn function",
             r#"
 trait Foo<T> {
     fn function(bar: T);
@@ -896,7 +906,7 @@
     #[test]
     fn generics_are_inlined_when_part_of_other_types() {
         check_edit(
-            "function",
+            "fn function",
             r#"
 trait Foo<T> {
     fn function(bar: Vec<T>);
@@ -925,7 +935,7 @@
     #[test]
     fn generics_are_inlined_complex() {
         check_edit(
-            "function",
+            "fn function",
             r#"
 trait Foo<T, U, V> {
     fn function(bar: Vec<T>, baz: U) -> Arc<Vec<V>>;
@@ -954,7 +964,7 @@
     #[test]
     fn generics_are_inlined_in_associated_const() {
         check_edit(
-            "BAR",
+            "const BAR",
             r#"
 trait Foo<T> {
     const BAR: T;
@@ -962,7 +972,7 @@
 struct Bar;
 
 impl Foo<u32> for Bar {
-    const B$0;
+    const B$0
 }
 "#,
             r#"
@@ -972,7 +982,7 @@
 struct Bar;
 
 impl Foo<u32> for Bar {
-    const BAR: u32 = ;
+    const BAR: u32 = $0;
 }
 "#,
         )
@@ -981,7 +991,7 @@
     #[test]
     fn generics_are_inlined_in_where_clause() {
         check_edit(
-            "function",
+            "fn function",
             r#"
 trait SomeTrait<T> {}
 
diff --git a/crates/ide_completion/src/completions/use_.rs b/crates/ide_completion/src/completions/use_.rs
index d7c279f..3f757f9 100644
--- a/crates/ide_completion/src/completions/use_.rs
+++ b/crates/ide_completion/src/completions/use_.rs
@@ -1,11 +1,13 @@
 //! Completion for use trees
 
 use hir::ScopeDef;
+use rustc_hash::FxHashSet;
 use syntax::{ast, AstNode};
 
 use crate::{
     context::{CompletionContext, PathCompletionCtx, PathKind, PathQualifierCtx},
-    Completions,
+    item::Builder,
+    CompletionRelevance, Completions,
 };
 
 pub(crate) fn complete_use_tree(acc: &mut Completions, ctx: &CompletionContext) {
@@ -39,6 +41,22 @@
                 None => return,
             };
 
+            let mut already_imported_names = FxHashSet::default();
+            if let Some(list) = ctx.token.ancestors().find_map(ast::UseTreeList::cast) {
+                let use_tree = list.parent_use_tree();
+                if use_tree.path().as_ref() == Some(path) {
+                    for tree in list.use_trees() {
+                        if tree.is_simple_path() {
+                            if let Some(name) =
+                                tree.path().and_then(|path| path.as_single_name_ref())
+                            {
+                                already_imported_names.insert(name.to_string());
+                            }
+                        }
+                    }
+                }
+            }
+
             match resolution {
                 hir::PathResolution::Def(hir::ModuleDef::Module(module)) => {
                     let module_scope = module.scope(ctx.db, Some(ctx.module));
@@ -50,6 +68,9 @@
                         )
                     };
                     for (name, def) in module_scope {
+                        let is_name_already_imported =
+                            already_imported_names.contains(name.as_text().unwrap().as_str());
+
                         let add_resolution = match def {
                             ScopeDef::Unknown if unknown_is_current(&name) => {
                                 // for `use self::foo$0`, don't suggest `foo` as a completion
@@ -61,7 +82,12 @@
                         };
 
                         if add_resolution {
-                            acc.add_resolution(ctx, name, def);
+                            let mut builder = Builder::from_resolution(ctx, name, def);
+                            builder.set_relevance(CompletionRelevance {
+                                is_name_already_imported,
+                                ..Default::default()
+                            });
+                            acc.add(builder.build());
                         }
                     }
                 }
diff --git a/crates/ide_completion/src/item.rs b/crates/ide_completion/src/item.rs
index 2fa8f77..41fae38 100644
--- a/crates/ide_completion/src/item.rs
+++ b/crates/ide_completion/src/item.rs
@@ -9,6 +9,11 @@
 use syntax::{SmolStr, TextRange};
 use text_edit::TextEdit;
 
+use crate::{
+    context::CompletionContext,
+    render::{render_resolution, RenderContext},
+};
+
 /// `CompletionItem` describes a single completion variant in the editor pop-up.
 /// It is basically a POD with various properties. To construct a
 /// `CompletionItem`, use `new` method and the `Builder` struct.
@@ -134,6 +139,8 @@
     pub is_local: bool,
     /// This is set when trait items are completed in an impl of that trait.
     pub is_item_from_trait: bool,
+    /// This is set when an import is suggested whose name is already imported.
+    pub is_name_already_imported: bool,
     /// Set for method completions of the `core::ops` and `core::cmp` family.
     pub is_op_method: bool,
     /// Set for item completions that are private but in the workspace.
@@ -200,6 +207,7 @@
             type_match,
             is_local,
             is_item_from_trait,
+            is_name_already_imported,
             is_op_method,
             is_private_editable,
             postfix_match,
@@ -214,6 +222,10 @@
         if !is_op_method {
             score += 10;
         }
+        // lower rank for conflicting import names
+        if !is_name_already_imported {
+            score += 1;
+        }
         if exact_name_match {
             score += 10;
         }
@@ -324,7 +336,7 @@
             kind: kind.into(),
             text_edit: None,
             deprecated: false,
-            trigger_call_info: None,
+            trigger_call_info: false,
             relevance: CompletionRelevance::default(),
             ref_match: None,
             imports_to_add: Default::default(),
@@ -407,12 +419,20 @@
     kind: CompletionItemKind,
     text_edit: Option<TextEdit>,
     deprecated: bool,
-    trigger_call_info: Option<bool>,
+    trigger_call_info: bool,
     relevance: CompletionRelevance,
     ref_match: Option<Mutability>,
 }
 
 impl Builder {
+    pub(crate) fn from_resolution(
+        ctx: &CompletionContext,
+        local_name: hir::Name,
+        resolution: hir::ScopeDef,
+    ) -> Self {
+        render_resolution(RenderContext::new(ctx), local_name, resolution)
+    }
+
     pub(crate) fn build(self) -> CompletionItem {
         let _p = profile::span("item::Builder::build");
 
@@ -445,7 +465,7 @@
             lookup,
             kind: self.kind,
             deprecated: self.deprecated,
-            trigger_call_info: self.trigger_call_info.unwrap_or(false),
+            trigger_call_info: self.trigger_call_info,
             relevance: self.relevance,
             ref_match: self.ref_match,
             import_to_add: self.imports_to_add,
@@ -513,7 +533,7 @@
         self
     }
     pub(crate) fn trigger_call_info(&mut self) -> &mut Builder {
-        self.trigger_call_info = Some(true);
+        self.trigger_call_info = true;
         self
     }
     pub(crate) fn add_import(&mut self, import_to_add: LocatedImport) -> &mut Builder {
diff --git a/crates/ide_completion/src/render.rs b/crates/ide_completion/src/render.rs
index 5b0257f..810ef63 100644
--- a/crates/ide_completion/src/render.rs
+++ b/crates/ide_completion/src/render.rs
@@ -18,7 +18,7 @@
 
 use crate::{
     context::{PathCompletionCtx, PathKind},
-    item::CompletionRelevanceTypeMatch,
+    item::{Builder, CompletionRelevanceTypeMatch},
     render::{function::render_fn, literal::render_variant_lit, macro_::render_macro},
     CompletionContext, CompletionItem, CompletionItemKind, CompletionRelevance,
 };
@@ -144,7 +144,7 @@
     ctx: RenderContext<'_>,
     local_name: hir::Name,
     resolution: ScopeDef,
-) -> CompletionItem {
+) -> Builder {
     render_resolution_(ctx, local_name, None, resolution)
 }
 
@@ -152,14 +152,14 @@
     ctx: RenderContext<'_>,
     local_name: hir::Name,
     resolution: ScopeDef,
-) -> CompletionItem {
+) -> Builder {
     render_resolution_simple_(ctx, local_name, None, resolution)
 }
 
 pub(crate) fn render_resolution_with_import(
     ctx: RenderContext<'_>,
     import_edit: LocatedImport,
-) -> Option<CompletionItem> {
+) -> Option<Builder> {
     let resolution = ScopeDef::from(import_edit.original_item);
     let local_name = match resolution {
         ScopeDef::ModuleDef(hir::ModuleDef::Function(f)) => f.name(ctx.completion.db),
@@ -182,7 +182,7 @@
     local_name: hir::Name,
     import_to_add: Option<LocatedImport>,
     resolution: ScopeDef,
-) -> CompletionItem {
+) -> Builder {
     let _p = profile::span("render_resolution");
     use hir::ModuleDef::*;
 
@@ -211,7 +211,7 @@
     local_name: hir::Name,
     import_to_add: Option<LocatedImport>,
     resolution: ScopeDef,
-) -> CompletionItem {
+) -> Builder {
     let _p = profile::span("render_resolution");
     use hir::ModuleDef::*;
 
@@ -292,7 +292,7 @@
     if let Some(import_to_add) = ctx.import_to_add {
         item.add_import(import_to_add);
     }
-    item.build()
+    item
 }
 
 fn scope_def_docs(db: &RootDatabase, resolution: ScopeDef) -> Option<hir::Documentation> {
@@ -625,6 +625,7 @@
                             ),
                             is_local: false,
                             is_item_from_trait: false,
+                            is_name_already_imported: false,
                             is_op_method: false,
                             is_private_editable: false,
                             postfix_match: None,
@@ -648,6 +649,7 @@
                             ),
                             is_local: false,
                             is_item_from_trait: false,
+                            is_name_already_imported: false,
                             is_op_method: false,
                             is_private_editable: false,
                             postfix_match: None,
@@ -737,6 +739,7 @@
                             ),
                             is_local: false,
                             is_item_from_trait: false,
+                            is_name_already_imported: false,
                             is_op_method: false,
                             is_private_editable: false,
                             postfix_match: None,
diff --git a/crates/ide_completion/src/render/function.rs b/crates/ide_completion/src/render/function.rs
index 211aa43..38520e1 100644
--- a/crates/ide_completion/src/render/function.rs
+++ b/crates/ide_completion/src/render/function.rs
@@ -22,7 +22,7 @@
     ctx: RenderContext<'_>,
     local_name: Option<hir::Name>,
     func: hir::Function,
-) -> CompletionItem {
+) -> Builder {
     let _p = profile::span("render_fn");
     render(ctx, local_name, func, FuncKind::Function)
 }
@@ -32,7 +32,7 @@
     receiver: Option<hir::Name>,
     local_name: Option<hir::Name>,
     func: hir::Function,
-) -> CompletionItem {
+) -> Builder {
     let _p = profile::span("render_method");
     render(ctx, local_name, func, FuncKind::Method(receiver))
 }
@@ -42,7 +42,7 @@
     local_name: Option<hir::Name>,
     func: hir::Function,
     func_kind: FuncKind,
-) -> CompletionItem {
+) -> Builder {
     let db = completion.db;
 
     let name = local_name.unwrap_or_else(|| func.name(db));
@@ -107,7 +107,7 @@
             }
         }
     }
-    item.build()
+    item
 }
 
 pub(super) fn add_call_parens<'b>(
diff --git a/crates/ide_completion/src/render/literal.rs b/crates/ide_completion/src/render/literal.rs
index e656317..f177313 100644
--- a/crates/ide_completion/src/render/literal.rs
+++ b/crates/ide_completion/src/render/literal.rs
@@ -5,7 +5,7 @@
 
 use crate::{
     context::{CompletionContext, PathCompletionCtx},
-    item::CompletionItem,
+    item::{Builder, CompletionItem},
     render::{
         compute_ref_match, compute_type_match,
         variant::{
@@ -22,7 +22,7 @@
     local_name: Option<hir::Name>,
     variant: hir::Variant,
     path: Option<hir::ModPath>,
-) -> Option<CompletionItem> {
+) -> Option<Builder> {
     let _p = profile::span("render_enum_variant");
     let db = ctx.db();
 
@@ -35,7 +35,7 @@
     strukt: hir::Struct,
     path: Option<hir::ModPath>,
     local_name: Option<hir::Name>,
-) -> Option<CompletionItem> {
+) -> Option<Builder> {
     let _p = profile::span("render_struct_literal");
     let db = ctx.db();
 
@@ -48,7 +48,7 @@
     thing: Variant,
     name: hir::Name,
     path: Option<hir::ModPath>,
-) -> Option<CompletionItem> {
+) -> Option<Builder> {
     let db = completion.db;
     let kind = thing.kind(db);
     let has_call_parens =
@@ -112,7 +112,7 @@
     if let Some(import_to_add) = ctx.import_to_add {
         item.add_import(import_to_add);
     }
-    Some(item.build())
+    Some(item)
 }
 
 #[derive(Clone, Copy)]
diff --git a/crates/ide_completion/src/render/macro_.rs b/crates/ide_completion/src/render/macro_.rs
index 9f848fe..ba18e5d 100644
--- a/crates/ide_completion/src/render/macro_.rs
+++ b/crates/ide_completion/src/render/macro_.rs
@@ -4,13 +4,13 @@
 use ide_db::SymbolKind;
 use syntax::SmolStr;
 
-use crate::{context::PathKind, item::CompletionItem, render::RenderContext};
+use crate::{
+    context::PathKind,
+    item::{Builder, CompletionItem},
+    render::RenderContext,
+};
 
-pub(crate) fn render_macro(
-    ctx: RenderContext<'_>,
-    name: hir::Name,
-    macro_: hir::Macro,
-) -> CompletionItem {
+pub(crate) fn render_macro(ctx: RenderContext<'_>, name: hir::Name, macro_: hir::Macro) -> Builder {
     let _p = profile::span("render_macro");
     render(ctx, name, macro_)
 }
@@ -19,7 +19,7 @@
     ctx @ RenderContext { completion, .. }: RenderContext<'_>,
     name: hir::Name,
     macro_: hir::Macro,
-) -> CompletionItem {
+) -> Builder {
     let source_range = if completion.is_immediately_after_macro_bang() {
         cov_mark::hit!(completes_macro_call_if_cursor_at_bang_token);
         completion.token.parent().map_or_else(|| ctx.source_range(), |it| it.text_range())
@@ -66,7 +66,7 @@
         item.add_import(import_to_add);
     }
 
-    item.build()
+    item
 }
 
 fn label(
diff --git a/crates/ide_db/src/rename.rs b/crates/ide_db/src/rename.rs
index 13234a8..5899754 100644
--- a/crates/ide_db/src/rename.rs
+++ b/crates/ide_db/src/rename.rs
@@ -178,17 +178,23 @@
     let mut source_change = SourceChange::default();
 
     let InFile { file_id, value: def_source } = module.definition_source(sema.db);
-    let file_id = file_id.original_file(sema.db);
     if let ModuleSource::SourceFile(..) = def_source {
-        // mod is defined in path/to/dir/mod.rs
-        let path = if module.is_mod_rs(sema.db) {
-            format!("../{}/mod.rs", new_name)
-        } else {
-            format!("{}.rs", new_name)
-        };
-        let dst = AnchoredPathBuf { anchor: file_id, path };
-        let move_file = FileSystemEdit::MoveFile { src: file_id, dst };
-        source_change.push_file_system_edit(move_file);
+        let anchor = file_id.original_file(sema.db);
+        // not mod.rs and doesn't has children, rename file only
+        if !module.is_mod_rs(sema.db) && module.children(sema.db).next().is_none() {
+            let path = format!("{}.rs", new_name);
+            let dst = AnchoredPathBuf { anchor, path };
+            source_change.push_file_system_edit(FileSystemEdit::MoveFile { src: anchor, dst })
+        } else if let Some(mod_name) = module.name(sema.db) {
+            // is mod.rs or has children, rename dir
+            let src = AnchoredPathBuf { anchor, path: mod_name.to_string() };
+            let dst = AnchoredPathBuf { anchor, path: new_name.to_string() };
+            source_change.push_file_system_edit(FileSystemEdit::MoveDir {
+                src,
+                src_id: anchor,
+                dst,
+            })
+        }
     }
 
     if let Some(src) = module.declaration_source(sema.db) {
diff --git a/crates/ide_db/src/source_change.rs b/crates/ide_db/src/source_change.rs
index aa910eb..8132c73 100644
--- a/crates/ide_db/src/source_change.rs
+++ b/crates/ide_db/src/source_change.rs
@@ -85,6 +85,7 @@
 pub enum FileSystemEdit {
     CreateFile { dst: AnchoredPathBuf, initial_contents: String },
     MoveFile { src: FileId, dst: AnchoredPathBuf },
+    MoveDir { src: AnchoredPathBuf, src_id: FileId, dst: AnchoredPathBuf },
 }
 
 impl From<FileSystemEdit> for SourceChange {
diff --git a/crates/rust-analyzer/src/to_proto.rs b/crates/rust-analyzer/src/to_proto.rs
index 0588f00..3d83f09 100644
--- a/crates/rust-analyzer/src/to_proto.rs
+++ b/crates/rust-analyzer/src/to_proto.rs
@@ -866,6 +866,20 @@
                 rename_file,
             )))
         }
+        FileSystemEdit::MoveDir { src, src_id, dst } => {
+            let old_uri = snap.anchored_path(&src);
+            let new_uri = snap.anchored_path(&dst);
+            let mut rename_file =
+                lsp_types::RenameFile { old_uri, new_uri, options: None, annotation_id: None };
+            if snap.analysis.is_library_file(src_id).ok() == Some(true)
+                && snap.config.change_annotation_support()
+            {
+                rename_file.annotation_id = Some(outside_workspace_annotation_id())
+            }
+            ops.push(lsp_ext::SnippetDocumentChangeOperation::Op(lsp_types::ResourceOp::Rename(
+                rename_file,
+            )))
+        }
     }
     Ok(ops)
 }