Rollup merge of #104454 - lnicola:rust-analyzer-2022-11-15, r=lnicola

⬆️ rust-analyzer

r? ``@ghost``

Author: matthiaskrgr

src/tools/rust-analyzer/Cargo.lock

@@ -221,6 +221,16 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "command-group"
+version = "1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7a8a86f409b4a59df3a3e4bee2de0b83f1755fdd2a25e3a9684c396fc4bed2c"
+dependencies = [
+ "nix",
+ "winapi",
+]
+
 [[package]]
 name = "countme"
 version = "3.0.1"
@@ -390,6 +400,7 @@ name = "flycheck"
 version = "0.0.0"
 dependencies = [
  "cargo_metadata",
+ "command-group",
  "crossbeam-channel",
  "jod-thread",
  "paths",
@@ -970,6 +981,19 @@ dependencies = [
  "windows-sys 0.28.0",
 ]
 
+[[package]]
+name = "nix"
+version = "0.22.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e4916f159ed8e5de0082076562152a76b7a1f64a01fd9d1e0fea002c37624faf"
+dependencies = [
+ "bitflags",
+ "cc",
+ "cfg-if",
+ "libc",
+ "memoffset",
+]
+
 [[package]]
 name = "notify"
 version = "5.0.0"

src/tools/rust-analyzer/crates/base-db/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.0.0"
 description = "TBD"
 license = "MIT OR Apache-2.0"
 edition = "2021"
-rust-version = "1.57"
+rust-version = "1.65"
 
 [lib]
 doctest = false

src/tools/rust-analyzer/crates/cfg/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.0.0"
 description = "TBD"
 license = "MIT OR Apache-2.0"
 edition = "2021"
-rust-version = "1.57"
+rust-version = "1.65"
 
 [lib]
 doctest = false

src/tools/rust-analyzer/crates/flycheck/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.0.0"
 description = "TBD"
 license = "MIT OR Apache-2.0"
 edition = "2021"
-rust-version = "1.57"
+rust-version = "1.65"
 
 [lib]
 doctest = false
@@ -17,6 +17,7 @@ rustc-hash = "1.1.0"
 serde = { version = "1.0.137", features = ["derive"] }
 serde_json = "1.0.86"
 jod-thread = "0.1.2"
+command-group = "1.0.8"
 
 toolchain = { path = "../toolchain", version = "0.0.0" }
 stdx = { path = "../stdx", version = "0.0.0" }

src/tools/rust-analyzer/crates/flycheck/src/lib.rs

@@ -10,11 +10,12 @@ use std::{
     time::Duration,
 };
 
+use command_group::{CommandGroup, GroupChild};
 use crossbeam_channel::{never, select, unbounded, Receiver, Sender};
 use paths::AbsPathBuf;
 use rustc_hash::FxHashMap;
 use serde::Deserialize;
-use stdx::{process::streaming_output, JodChild};
+use stdx::process::streaming_output;
 
 pub use cargo_metadata::diagnostic::{
     Applicability, Diagnostic, DiagnosticCode, DiagnosticLevel, DiagnosticSpan,
@@ -359,10 +360,12 @@ impl FlycheckActor {
     }
 }
 
+struct JodChild(GroupChild);
+
 /// A handle to a cargo process used for fly-checking.
 struct CargoHandle {
     /// The handle to the actual cargo process. As we cannot cancel directly from with
-    /// a read syscall dropping and therefor terminating the process is our best option.
+    /// a read syscall dropping and therefore terminating the process is our best option.
     child: JodChild,
     thread: jod_thread::JoinHandle<io::Result<(bool, String)>>,
     receiver: Receiver<CargoMessage>,
@@ -371,10 +374,10 @@ struct CargoHandle {
 impl CargoHandle {
     fn spawn(mut command: Command) -> std::io::Result<CargoHandle> {
         command.stdout(Stdio::piped()).stderr(Stdio::piped()).stdin(Stdio::null());
-        let mut child = JodChild::spawn(command)?;
+        let mut child = command.group_spawn().map(JodChild)?;
 
-        let stdout = child.stdout.take().unwrap();
-        let stderr = child.stderr.take().unwrap();
+        let stdout = child.0.inner().stdout.take().unwrap();
+        let stderr = child.0.inner().stderr.take().unwrap();
 
         let (sender, receiver) = unbounded();
         let actor = CargoActor::new(sender, stdout, stderr);
@@ -386,13 +389,13 @@ impl CargoHandle {
     }
 
     fn cancel(mut self) {
-        let _ = self.child.kill();
-        let _ = self.child.wait();
+        let _ = self.child.0.kill();
+        let _ = self.child.0.wait();
     }
 
     fn join(mut self) -> io::Result<()> {
-        let _ = self.child.kill();
-        let exit_status = self.child.wait()?;
+        let _ = self.child.0.kill();
+        let exit_status = self.child.0.wait()?;
         let (read_at_least_one_message, error) = self.thread.join()?;
         if read_at_least_one_message || exit_status.success() {
             Ok(())

src/tools/rust-analyzer/crates/hir-def/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.0.0"
 description = "TBD"
 license = "MIT OR Apache-2.0"
 edition = "2021"
-rust-version = "1.57"
+rust-version = "1.65"
 
 [lib]
 doctest = false

src/tools/rust-analyzer/crates/hir-def/src/data.rs

@@ -236,11 +236,19 @@ impl TraitData {
             .by_key("rustc_skip_array_during_method_dispatch")
             .exists();
 
-        let mut collector =
-            AssocItemCollector::new(db, module_id, tree_id.file_id(), ItemContainerId::TraitId(tr));
-        collector.collect(&item_tree, tree_id.tree_id(), &tr_def.items);
-        let (items, attribute_calls, diagnostics) = collector.finish();
-
+        let (items, attribute_calls, diagnostics) = match &tr_def.items {
+            Some(items) => {
+                let mut collector = AssocItemCollector::new(
+                    db,
+                    module_id,
+                    tree_id.file_id(),
+                    ItemContainerId::TraitId(tr),
+                );
+                collector.collect(&item_tree, tree_id.tree_id(), items);
+                collector.finish()
+            }
+            None => Default::default(),
+        };
         (
             Arc::new(TraitData {
                 name,

src/tools/rust-analyzer/crates/hir-def/src/item_tree.rs

@@ -666,7 +666,8 @@ pub struct Trait {
     pub generic_params: Interned<GenericParams>,
     pub is_auto: bool,
     pub is_unsafe: bool,
-    pub items: Box<[AssocItem]>,
+    /// This is [`None`] if this Trait is a trait alias.
+    pub items: Option<Box<[AssocItem]>>,
     pub ast_id: FileAstId<ast::Trait>,
 }
 

src/tools/rust-analyzer/crates/hir-def/src/item_tree/lower.rs

@@ -451,15 +451,7 @@ impl<'a> Ctx<'a> {
                 .collect()
         });
         let ast_id = self.source_ast_id_map.ast_id(trait_def);
-        let res = Trait {
-            name,
-            visibility,
-            generic_params,
-            is_auto,
-            is_unsafe,
-            items: items.unwrap_or_default(),
-            ast_id,
-        };
+        let res = Trait { name, visibility, generic_params, is_auto, is_unsafe, items, ast_id };
         Some(id(self.data().traits.alloc(res)))
     }
 

src/tools/rust-analyzer/crates/hir-def/src/item_tree/pretty.rs

@@ -375,12 +375,21 @@ impl<'a> Printer<'a> {
                 }
                 w!(self, "trait {}", name);
                 self.print_generic_params(generic_params);
-                self.print_where_clause_and_opening_brace(generic_params);
-                self.indented(|this| {
-                    for item in &**items {
-                        this.print_mod_item((*item).into());
+                match items {
+                    Some(items) => {
+                        self.print_where_clause_and_opening_brace(generic_params);
+                        self.indented(|this| {
+                            for item in &**items {
+                                this.print_mod_item((*item).into());
+                            }
+                        });
                     }
-                });
+                    None => {
+                        w!(self, " = ");
+                        // FIXME: Print the aliased traits
+                        self.print_where_clause_and_opening_brace(generic_params);
+                    }
+                }
                 wln!(self, "}}");
             }
             ModItem::Impl(it) => {

src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe/matching.rs

@@ -94,11 +94,11 @@ macro_rules! m {
     ($($s:stmt)*) => (stringify!($($s |)*);)
 }
 stringify!(;
-|;
-|92|;
-|let x = 92|;
+| ;
+|92| ;
+|let x = 92| ;
 |loop {}
-|;
+| ;
 |);
 "#]],
     );
@@ -118,7 +118,7 @@ m!(.. .. ..);
 macro_rules! m {
     ($($p:pat)*) => (stringify!($($p |)*);)
 }
-stringify!(.. .. ..|);
+stringify!(.. .. .. |);
 "#]],
     );
 }

src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/proc_macros.rs

@@ -82,14 +82,14 @@ fn attribute_macro_syntax_completion_2() {
 #[proc_macros::identity_when_valid]
 fn foo() { bar.; blub }
 "#,
-        expect![[r##"
+        expect![[r#"
 #[proc_macros::identity_when_valid]
 fn foo() { bar.; blub }
 
 fn foo() {
-    bar.;
+    bar. ;
     blub
-}"##]],
+}"#]],
     );
 }
 

src/tools/rust-analyzer/crates/hir-def/src/nameres/collector.rs

@@ -212,6 +212,7 @@ impl Import {
 
 #[derive(Debug, Eq, PartialEq)]
 struct ImportDirective {
+    /// The module this import directive is in.
     module_id: LocalModuleId,
     import: Import,
     status: PartialResolvedImport,
@@ -963,8 +964,10 @@ impl DefCollector<'_> {
 
     fn update(
         &mut self,
+        // The module for which `resolutions` have been resolve
         module_id: LocalModuleId,
         resolutions: &[(Option<Name>, PerNs)],
+        // Visibility this import will have
         vis: Visibility,
         import_type: ImportType,
     ) {
@@ -974,6 +977,7 @@ impl DefCollector<'_> {
 
     fn update_recursive(
         &mut self,
+        // The module for which `resolutions` have been resolve
         module_id: LocalModuleId,
         resolutions: &[(Option<Name>, PerNs)],
         // All resolutions are imported with this visibility; the visibilities in

src/tools/rust-analyzer/crates/hir-def/src/nameres/path_resolution.rs

@@ -73,7 +73,10 @@ impl DefMap {
     pub(crate) fn resolve_visibility(
         &self,
         db: &dyn DefDatabase,
+        // module to import to
         original_module: LocalModuleId,
+        // pub(path)
+        //     ^^^^ this
         visibility: &RawVisibility,
     ) -> Option<Visibility> {
         let mut vis = match visibility {
@@ -115,6 +118,7 @@ impl DefMap {
         &self,
         db: &dyn DefDatabase,
         mode: ResolveMode,
+        // module to import to
         mut original_module: LocalModuleId,
         path: &ModPath,
         shadow: BuiltinShadowMode,
@@ -361,6 +365,9 @@ impl DefMap {
                     );
                 }
             };
+
+            curr_per_ns = curr_per_ns
+                .filter_visibility(|vis| vis.is_visible_from_def_map(db, self, original_module));
         }
 
         ResolvePathResult::with(curr_per_ns, ReachedFixedPoint::Yes, None, Some(self.krate))

src/tools/rust-analyzer/crates/hir-def/src/nameres/tests.rs

@@ -58,9 +58,9 @@ extern {
 "#,
         expect![[r#"
             crate
-            E: t
+            E: _
             S: t v
-            V: t v
+            V: _
             foo: t
 
             crate::foo
@@ -307,7 +307,7 @@ pub struct FromLib;
             Bar: t v
 
             crate::foo
-            Bar: t v
+            Bar: _
             FromLib: t v
         "#]],
     );

src/tools/rust-analyzer/crates/hir-def/src/nameres/tests/globs.rs

@@ -119,7 +119,7 @@ use foo::*;
 use foo::bar::*;
 
 //- /foo/mod.rs
-mod bar;
+pub mod bar;
 fn Foo() {};
 pub struct Foo {};
 
@@ -132,6 +132,7 @@ pub(crate) struct PubCrateStruct;
             crate
             Foo: t
             PubCrateStruct: t v
+            bar: t
             foo: t
 
             crate::foo
@@ -336,3 +337,33 @@ mod d {
         "#]],
     );
 }
+
+#[test]
+fn glob_name_collision_check_visibility() {
+    check(
+        r#"
+mod event {
+    mod serenity {
+        pub fn Event() {}
+    }
+    use serenity::*;
+
+    pub struct Event {}
+}
+
+use event::Event;
+        "#,
+        expect![[r#"
+            crate
+            Event: t
+            event: t
+
+            crate::event
+            Event: t v
+            serenity: t
+
+            crate::event::serenity
+            Event: v
+        "#]],
+    );
+}