Rollup merge of rust-lang#101197 - lnicola:rust-analyzer-2022-08-30, r=lnicola

⬆️ rust-analyzer

r? ``@ghost``

Author: JohnTitor

src/tools/rust-analyzer/Cargo.lock

@@ -247,20 +247,6 @@ dependencies = [
  "cfg-if",
 ]
 
-[[package]]
-name = "crossbeam"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2801af0d36612ae591caa9568261fddce32ce6e08a7275ea334a06a4ad021a2c"
-dependencies = [
- "cfg-if",
- "crossbeam-channel",
- "crossbeam-deque",
- "crossbeam-epoch",
- "crossbeam-queue",
- "crossbeam-utils",
-]
-
 [[package]]
 name = "crossbeam-channel"
 version = "0.5.6"
@@ -296,16 +282,6 @@ dependencies = [
  "scopeguard",
 ]
 
-[[package]]
-name = "crossbeam-queue"
-version = "0.3.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1cd42583b04998a5363558e5f9291ee5a5ff6b49944332103f251e7479a82aa7"
-dependencies = [
- "cfg-if",
- "crossbeam-utils",
-]
-
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.11"
@@ -728,6 +704,7 @@ dependencies = [
  "ide-db",
  "itertools",
  "parser",
+ "stdx",
  "syntax",
  "test-utils",
  "text-edit",
@@ -895,9 +872,9 @@ dependencies = [
 
 [[package]]
 name = "lsp-types"
-version = "0.93.0"
+version = "0.93.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70c74e2173b2b31f8655d33724b4b45ac13f439386f66290f539c22b144c2212"
+checksum = "a3bcfee315dde785ba887edb540b08765fd7df75a7d948844be6bf5712246734"
 dependencies = [
  "bitflags",
  "serde",
@@ -1178,7 +1155,6 @@ dependencies = [
 name = "proc-macro-srv"
 version = "0.0.0"
 dependencies = [
- "crossbeam",
  "expect-test",
  "libloading",
  "mbe",
@@ -1254,6 +1230,26 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "protobuf"
+version = "3.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ee4a7d8b91800c8f167a6268d1a1026607368e1adc84e98fe044aeb905302f7"
+dependencies = [
+ "once_cell",
+ "protobuf-support",
+ "thiserror",
+]
+
+[[package]]
+name = "protobuf-support"
+version = "3.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ca157fe12fc7ee2e315f2f735e27df41b3d97cdd70ea112824dac1ffb08ee1c"
+dependencies = [
+ "thiserror",
+]
+
 [[package]]
 name = "pulldown-cmark"
 version = "0.9.2"
@@ -1385,6 +1381,7 @@ dependencies = [
  "project-model",
  "rayon",
  "rustc-hash",
+ "scip",
  "serde",
  "serde_json",
  "sourcegen",
@@ -1471,6 +1468,15 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "scip"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2bfbb10286f69fad7c78db71004b7839bf957788359fe0c479f029f9849136b"
+dependencies = [
+ "protobuf",
+]
+
 [[package]]
 name = "scoped-tls"
 version = "1.0.0"
@@ -1656,6 +1662,26 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "288cb548dbe72b652243ea797201f3d481a0609a967980fcc5b2315ea811560a"
 
+[[package]]
+name = "thiserror"
+version = "1.0.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd829fe32373d27f76265620b5309d0340cb8550f523c1dda251d6298069069a"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0396bc89e626244658bef819e22d0cc459e795a5ebe878e6ec336d1674a8d79a"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "thread_local"
 version = "1.1.4"
@@ -1896,6 +1922,7 @@ dependencies = [
  "indexmap",
  "paths",
  "rustc-hash",
+ "stdx",
 ]
 
 [[package]]

src/tools/rust-analyzer/crates/base-db/src/input.rs

@@ -9,10 +9,11 @@
 use std::{fmt, ops, panic::RefUnwindSafe, str::FromStr, sync::Arc};
 
 use cfg::CfgOptions;
-use rustc_hash::{FxHashMap, FxHashSet};
+use rustc_hash::FxHashMap;
+use stdx::hash::{NoHashHashMap, NoHashHashSet};
 use syntax::SmolStr;
 use tt::Subtree;
-use vfs::{file_set::FileSet, FileId, VfsPath};
+use vfs::{file_set::FileSet, AnchoredPath, FileId, VfsPath};
 
 /// Files are grouped into source roots. A source root is a directory on the
 /// file systems which is watched for changes. Typically it corresponds to a
@@ -31,22 +32,30 @@ pub struct SourceRoot {
     /// Libraries are considered mostly immutable, this assumption is used to
     /// optimize salsa's query structure
     pub is_library: bool,
-    pub(crate) file_set: FileSet,
+    file_set: FileSet,
 }
 
 impl SourceRoot {
     pub fn new_local(file_set: FileSet) -> SourceRoot {
         SourceRoot { is_library: false, file_set }
     }
+
     pub fn new_library(file_set: FileSet) -> SourceRoot {
         SourceRoot { is_library: true, file_set }
     }
+
     pub fn path_for_file(&self, file: &FileId) -> Option<&VfsPath> {
         self.file_set.path_for_file(file)
     }
+
     pub fn file_for_path(&self, path: &VfsPath) -> Option<&FileId> {
         self.file_set.file_for_path(path)
     }
+
+    pub fn resolve_path(&self, path: AnchoredPath<'_>) -> Option<FileId> {
+        self.file_set.resolve_path(path)
+    }
+
     pub fn iter(&self) -> impl Iterator<Item = FileId> + '_ {
         self.file_set.iter()
     }
@@ -72,12 +81,19 @@ impl SourceRoot {
 /// <https://github.com/rust-lang/rust-analyzer/blob/master/docs/dev/architecture.md#serialization>
 #[derive(Debug, Clone, Default /* Serialize, Deserialize */)]
 pub struct CrateGraph {
-    arena: FxHashMap<CrateId, CrateData>,
+    arena: NoHashHashMap<CrateId, CrateData>,
 }
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
 pub struct CrateId(pub u32);
 
+impl stdx::hash::NoHashHashable for CrateId {}
+impl std::hash::Hash for CrateId {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.0.hash(state);
+    }
+}
+
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct CrateName(SmolStr);
 
@@ -342,7 +358,7 @@ impl CrateGraph {
         // Check if adding a dep from `from` to `to` creates a cycle. To figure
         // that out, look for a  path in the *opposite* direction, from `to` to
         // `from`.
-        if let Some(path) = self.find_path(&mut FxHashSet::default(), dep.crate_id, from) {
+        if let Some(path) = self.find_path(&mut NoHashHashSet::default(), dep.crate_id, from) {
             let path = path.into_iter().map(|it| (it, self[it].display_name.clone())).collect();
             let err = CyclicDependenciesError { path };
             assert!(err.from().0 == from && err.to().0 == dep.crate_id);
@@ -365,7 +381,7 @@ impl CrateGraph {
     /// including the crate itself.
     pub fn transitive_deps(&self, of: CrateId) -> impl Iterator<Item = CrateId> {
         let mut worklist = vec![of];
-        let mut deps = FxHashSet::default();
+        let mut deps = NoHashHashSet::default();
 
         while let Some(krate) = worklist.pop() {
             if !deps.insert(krate) {
@@ -382,10 +398,10 @@ impl CrateGraph {
     /// including the crate itself.
     pub fn transitive_rev_deps(&self, of: CrateId) -> impl Iterator<Item = CrateId> {
         let mut worklist = vec![of];
-        let mut rev_deps = FxHashSet::default();
+        let mut rev_deps = NoHashHashSet::default();
         rev_deps.insert(of);
 
-        let mut inverted_graph = FxHashMap::<_, Vec<_>>::default();
+        let mut inverted_graph = NoHashHashMap::<_, Vec<_>>::default();
         self.arena.iter().for_each(|(&krate, data)| {
             data.dependencies
                 .iter()
@@ -409,7 +425,7 @@ impl CrateGraph {
     /// come before the crate itself).
     pub fn crates_in_topological_order(&self) -> Vec<CrateId> {
         let mut res = Vec::new();
-        let mut visited = FxHashSet::default();
+        let mut visited = NoHashHashSet::default();
 
         for krate in self.arena.keys().copied() {
             go(self, &mut visited, &mut res, krate);
@@ -419,7 +435,7 @@ impl CrateGraph {
 
         fn go(
             graph: &CrateGraph,
-            visited: &mut FxHashSet<CrateId>,
+            visited: &mut NoHashHashSet<CrateId>,
             res: &mut Vec<CrateId>,
             source: CrateId,
         ) {
@@ -459,7 +475,7 @@ impl CrateGraph {
 
     fn find_path(
         &self,
-        visited: &mut FxHashSet<CrateId>,
+        visited: &mut NoHashHashSet<CrateId>,
         from: CrateId,
         to: CrateId,
     ) -> Option<Vec<CrateId>> {

src/tools/rust-analyzer/crates/base-db/src/lib.rs

@@ -8,7 +8,7 @@ pub mod fixture;
 
 use std::{panic, sync::Arc};
 
-use rustc_hash::FxHashSet;
+use stdx::hash::NoHashHashSet;
 use syntax::{ast, Parse, SourceFile, TextRange, TextSize};
 
 pub use crate::{
@@ -58,7 +58,7 @@ pub trait FileLoader {
     /// Text of the file.
     fn file_text(&self, file_id: FileId) -> Arc<String>;
     fn resolve_path(&self, path: AnchoredPath<'_>) -> Option<FileId>;
-    fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>>;
+    fn relevant_crates(&self, file_id: FileId) -> Arc<NoHashHashSet<CrateId>>;
 }
 
 /// Database which stores all significant input facts: source code and project
@@ -94,10 +94,10 @@ pub trait SourceDatabaseExt: SourceDatabase {
     #[salsa::input]
     fn source_root(&self, id: SourceRootId) -> Arc<SourceRoot>;
 
-    fn source_root_crates(&self, id: SourceRootId) -> Arc<FxHashSet<CrateId>>;
+    fn source_root_crates(&self, id: SourceRootId) -> Arc<NoHashHashSet<CrateId>>;
 }
 
-fn source_root_crates(db: &dyn SourceDatabaseExt, id: SourceRootId) -> Arc<FxHashSet<CrateId>> {
+fn source_root_crates(db: &dyn SourceDatabaseExt, id: SourceRootId) -> Arc<NoHashHashSet<CrateId>> {
     let graph = db.crate_graph();
     let res = graph
         .iter()
@@ -120,10 +120,10 @@ impl<T: SourceDatabaseExt> FileLoader for FileLoaderDelegate<&'_ T> {
         // FIXME: this *somehow* should be platform agnostic...
         let source_root = self.0.file_source_root(path.anchor);
         let source_root = self.0.source_root(source_root);
-        source_root.file_set.resolve_path(path)
+        source_root.resolve_path(path)
     }
 
-    fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>> {
+    fn relevant_crates(&self, file_id: FileId) -> Arc<NoHashHashSet<CrateId>> {
         let _p = profile::span("relevant_crates");
         let source_root = self.0.file_source_root(file_id);
         self.0.source_root_crates(source_root)

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

@@ -125,6 +125,7 @@ pub enum Progress {
     DidCheckCrate(String),
     DidFinish(io::Result<()>),
     DidCancel,
+    DidFailToRestart(String),
 }
 
 enum Restart {
@@ -193,10 +194,11 @@ impl FlycheckActor {
                             self.progress(Progress::DidStart);
                         }
                         Err(error) => {
-                            tracing::error!(
-                                command = ?self.check_command(),
-                                %error, "failed to restart flycheck"
-                            );
+                            self.progress(Progress::DidFailToRestart(format!(
+                                "Failed to run the following command: {:?} error={}",
+                                self.check_command(),
+                                error
+                            )));
                         }
                     }
                 }