Prefer test duped crates for ide features

10 files changed, 65 insertions, 119 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 8759782bb29..0e384a2e427 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -87,6 +87,7 @@ name = "base-db"
 version = "0.0.0"
 dependencies = [
  "cfg",
+ "indexmap",
  "la-arena",
  "profile",
  "rustc-hash",
@@ -579,6 +580,7 @@ dependencies = [
  "hir-def",
  "hir-expand",
  "hkalbasi-rustc-ap-rustc_index",
+ "indexmap",
  "intern",
  "itertools",
  "la-arena",
diff --git a/crates/base-db/Cargo.toml b/crates/base-db/Cargo.toml
index c2d021c2238..3c0aedce147 100644
--- a/crates/base-db/Cargo.toml
+++ b/crates/base-db/Cargo.toml
@@ -14,6 +14,7 @@ doctest = false
 [dependencies]
 salsa = "0.17.0-pre.2"
 rustc-hash = "1.1.0"
+indexmap = "1.6.0"
 
 la-arena = { version = "0.3.0", path = "../../lib/la-arena" }
 
diff --git a/crates/base-db/src/lib.rs b/crates/base-db/src/lib.rs
index b65cf7341f3..7593135c5c4 100644
--- a/crates/base-db/src/lib.rs
+++ b/crates/base-db/src/lib.rs
@@ -6,9 +6,10 @@ mod input;
 mod change;
 pub mod fixture;
 
-use std::{panic, sync::Arc};
+use std::{hash::BuildHasherDefault, panic, sync::Arc};
 
-use rustc_hash::FxHashSet;
+use indexmap::IndexSet;
+use rustc_hash::FxHasher;
 use syntax::{ast, Parse, SourceFile, TextRange, TextSize};
 
 pub use crate::{
@@ -59,7 +60,10 @@ pub trait FileLoader {
     /// Text of the file.
     fn file_text(&self, file_id: FileId) -> Arc<str>;
     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<IndexSet<CrateId, BuildHasherDefault<FxHasher>>>;
 }
 
 /// Database which stores all significant input facts: source code and project
@@ -99,10 +103,16 @@ 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<IndexSet<CrateId, BuildHasherDefault<FxHasher>>>;
 }
 
-fn source_root_crates(db: &dyn SourceDatabaseExt, id: SourceRootId) -> Arc<FxHashSet<CrateId>> {
+fn source_root_crates(
+    db: &dyn SourceDatabaseExt,
+    id: SourceRootId,
+) -> Arc<IndexSet<CrateId, BuildHasherDefault<FxHasher>>> {
     let graph = db.crate_graph();
     let res = graph
         .iter()
@@ -128,7 +138,10 @@ impl<T: SourceDatabaseExt> FileLoader for FileLoaderDelegate<&'_ T> {
         source_root.resolve_path(path)
     }
 
-    fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>> {
+    fn relevant_crates(
+        &self,
+        file_id: FileId,
+    ) -> Arc<IndexSet<CrateId, BuildHasherDefault<FxHasher>>> {
         let _p = profile::span("relevant_crates");
         let source_root = self.0.file_source_root(file_id);
         self.0.source_root_crates(source_root)
diff --git a/crates/hir-def/src/test_db.rs b/crates/hir-def/src/test_db.rs
index 6bfcd90970d..5a186466bc4 100644
--- a/crates/hir-def/src/test_db.rs
+++ b/crates/hir-def/src/test_db.rs
@@ -1,7 +1,9 @@
 //! Database used for testing `hir_def`.
 
 use std::{
-    fmt, panic,
+    fmt,
+    hash::BuildHasherDefault,
+    panic,
     sync::{Arc, Mutex},
 };
 
@@ -11,7 +13,8 @@ use base_db::{
     Upcast,
 };
 use hir_expand::{db::ExpandDatabase, InFile};
-use rustc_hash::FxHashSet;
+use indexmap::IndexSet;
+use rustc_hash::FxHasher;
 use syntax::{algo, ast, AstNode};
 
 use crate::{
@@ -77,7 +80,10 @@ impl FileLoader for TestDB {
     fn resolve_path(&self, path: AnchoredPath<'_>) -> Option<FileId> {
         FileLoaderDelegate(self).resolve_path(path)
     }
-    fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>> {
+    fn relevant_crates(
+        &self,
+        file_id: FileId,
+    ) -> Arc<IndexSet<CrateId, BuildHasherDefault<FxHasher>>> {
         FileLoaderDelegate(self).relevant_crates(file_id)
     }
 }
diff --git a/crates/hir-ty/Cargo.toml b/crates/hir-ty/Cargo.toml
index 3ab7460e8cd..7c153e28d0f 100644
--- a/crates/hir-ty/Cargo.toml
+++ b/crates/hir-ty/Cargo.toml
@@ -30,6 +30,7 @@ la-arena = { version = "0.3.0", path = "../../lib/la-arena" }
 once_cell = "1.17.0"
 typed-arena = "2.0.1"
 rustc_index = { version = "0.0.20221221", package = "hkalbasi-rustc-ap-rustc_index", default-features = false }
+indexmap = "1.6.0"
 
 # local deps
 stdx.workspace = true
diff --git a/crates/hir-ty/src/test_db.rs b/crates/hir-ty/src/test_db.rs
index ca96a8d1724..7525106fd09 100644
--- a/crates/hir-ty/src/test_db.rs
+++ b/crates/hir-ty/src/test_db.rs
@@ -1,7 +1,9 @@
 //! Database used for testing `hir`.
 
 use std::{
-    fmt, panic,
+    fmt,
+    hash::BuildHasherDefault,
+    panic,
     sync::{Arc, Mutex},
 };
 
@@ -11,7 +13,8 @@ use base_db::{
 };
 use hir_def::{db::DefDatabase, ModuleId};
 use hir_expand::db::ExpandDatabase;
-use rustc_hash::FxHashSet;
+use indexmap::IndexSet;
+use rustc_hash::FxHasher;
 use stdx::hash::NoHashHashMap;
 use syntax::TextRange;
 use test_utils::extract_annotations;
@@ -82,7 +85,10 @@ impl FileLoader for TestDB {
     fn resolve_path(&self, path: AnchoredPath<'_>) -> Option<FileId> {
         FileLoaderDelegate(self).resolve_path(path)
     }
-    fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>> {
+    fn relevant_crates(
+        &self,
+        file_id: FileId,
+    ) -> Arc<IndexSet<CrateId, BuildHasherDefault<FxHasher>>> {
         FileLoaderDelegate(self).relevant_crates(file_id)
     }
 }
diff --git a/crates/hir/src/semantics/source_to_def.rs b/crates/hir/src/semantics/source_to_def.rs
index c50ffa4f8b7..12257247c87 100644
--- a/crates/hir/src/semantics/source_to_def.rs
+++ b/crates/hir/src/semantics/source_to_def.rs
@@ -119,7 +119,9 @@ impl SourceToDefCtx<'_, '_> {
     pub(super) fn file_to_def(&self, file: FileId) -> SmallVec<[ModuleId; 1]> {
         let _p = profile::span("SourceBinder::to_module_def");
         let mut mods = SmallVec::new();
-        for &crate_id in self.db.relevant_crates(file).iter() {
+        // HACK: We iterate in reverse so that dev-dependency duplicated crates appear first in this
+        // Most code only deals with one module and we want to prefer the test enabled code where possible
+        for &crate_id in self.db.relevant_crates(file).iter().rev() {
             // FIXME: inner items
             let crate_def_map = self.db.crate_def_map(crate_id);
             mods.extend(
diff --git a/crates/ide-db/src/lib.rs b/crates/ide-db/src/lib.rs
index b0c5820fb09..879dbb74507 100644
--- a/crates/ide-db/src/lib.rs
+++ b/crates/ide-db/src/lib.rs
@@ -43,7 +43,7 @@ pub mod syntax_helpers {
     pub use parser::LexedStr;
 }
 
-use std::{fmt, mem::ManuallyDrop, sync::Arc};
+use std::{fmt, hash::BuildHasherDefault, mem::ManuallyDrop, sync::Arc};
 
 use base_db::{
     salsa::{self, Durability},
@@ -53,6 +53,7 @@ use hir::{
     db::{DefDatabase, ExpandDatabase, HirDatabase},
     symbols::FileSymbolKind,
 };
+use indexmap::IndexSet;
 
 use crate::{line_index::LineIndex, symbol_index::SymbolsDatabase};
 pub use rustc_hash::{FxHashMap, FxHashSet, FxHasher};
@@ -119,7 +120,10 @@ impl FileLoader for RootDatabase {
     fn resolve_path(&self, path: AnchoredPath<'_>) -> Option<FileId> {
         FileLoaderDelegate(self).resolve_path(path)
     }
-    fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>> {
+    fn relevant_crates(
+        &self,
+        file_id: FileId,
+    ) -> Arc<IndexSet<CrateId, BuildHasherDefault<FxHasher>>> {
         FileLoaderDelegate(self).relevant_crates(file_id)
     }
 }
diff --git a/crates/project-model/src/workspace.rs b/crates/project-model/src/workspace.rs
index a0b185a3a59..065b25d7463 100644
--- a/crates/project-model/src/workspace.rs
+++ b/crates/project-model/src/workspace.rs
@@ -938,7 +938,7 @@ fn cargo_to_crate_graph(
     // Get all dependencies of the workspace members that are used as dev-dependencies
     for pkg in cargo.packages() {
         for dep in &cargo[pkg].dependencies {
-            if dep.kind == DepKind::Dev {
+            if dep.kind == DepKind::Dev && cargo[dep.pkg].is_member {
                 work.push(dep.pkg);
             }
         }
@@ -955,6 +955,10 @@ fn cargo_to_crate_graph(
                 }
                 v.insert({
                     let duped = crate_graph.duplicate(to);
+                    tracing::info!(
+                        "duplicating workspace crate {:?} as it is being used as a dev-dependency: {to:?} -> {duped:?}",
+                        crate_graph[to].display_name
+                    );
                     if let Some(proc_macro) = proc_macros.get(&to).cloned() {
                         proc_macros.insert(duped, proc_macro);
                     }
@@ -1008,7 +1012,12 @@ fn cargo_to_crate_graph(
 
     for (&pkg, targets) in &pkg_crates {
         for &(krate, _) in targets {
-            if test_dupes.get(&krate).is_some() {
+            if let Some(&dupe) = test_dupes.get(&krate) {
+                tracing::info!(
+                    "{krate:?} {:?} {dupe:?} {:?}",
+                    crate_graph[krate].cfg_options,
+                    crate_graph[dupe].cfg_options
+                );
                 // if the crate got duped as a dev-dep the dupe already has test set
                 continue;
             }
diff --git a/crates/project-model/test_data/cargo_dev_dependencies-crate-graph.txt b/crates/project-model/test_data/cargo_dev_dependencies-crate-graph.txt
index 2dba4efa923..10709402514 100644
--- a/crates/project-model/test_data/cargo_dev_dependencies-crate-graph.txt
+++ b/crates/project-model/test_data/cargo_dev_dependencies-crate-graph.txt
@@ -244,14 +244,14 @@
                 prelude: true,
             },
             Dependency {
-                crate_id: Idx::<CrateData>(8),
+                crate_id: Idx::<CrateData>(7),
                 name: CrateName(
                     "ra_playground",
                 ),
                 prelude: true,
             },
             Dependency {
-                crate_id: Idx::<CrateData>(7),
+                crate_id: Idx::<CrateData>(5),
                 name: CrateName(
                     "regex",
                 ),
@@ -328,14 +328,14 @@
                 prelude: true,
             },
             Dependency {
-                crate_id: Idx::<CrateData>(8),
+                crate_id: Idx::<CrateData>(7),
                 name: CrateName(
                     "ra_playground",
                 ),
                 prelude: true,
             },
             Dependency {
-                crate_id: Idx::<CrateData>(7),
+                crate_id: Idx::<CrateData>(5),
                 name: CrateName(
                     "regex",
                 ),
@@ -553,104 +553,6 @@
     },
     7: CrateData {
         root_file_id: FileId(
-            6,
-        ),
-        edition: Edition2018,
-        version: Some(
-            "1.7.3",
-        ),
-        display_name: Some(
-            CrateDisplayName {
-                crate_name: CrateName(
-                    "regex",
-                ),
-                canonical_name: "regex",
-            },
-        ),
-        cfg_options: CfgOptions(
-            [
-                "debug_assertions",
-                "feature=aho-corasick",
-                "feature=default",
-                "feature=memchr",
-                "feature=perf",
-                "feature=perf-cache",
-                "feature=perf-dfa",
-                "feature=perf-inline",
-                "feature=perf-literal",
-                "feature=std",
-                "feature=unicode",
-                "feature=unicode-age",
-                "feature=unicode-bool",
-                "feature=unicode-case",
-                "feature=unicode-gencat",
-                "feature=unicode-perl",
-                "feature=unicode-script",
-                "feature=unicode-segment",
-                "test",
-            ],
-        ),
-        potential_cfg_options: Some(
-            CfgOptions(
-                [
-                    "debug_assertions",
-                    "feature=aho-corasick",
-                    "feature=default",
-                    "feature=memchr",
-                    "feature=pattern",
-                    "feature=perf",
-                    "feature=perf-cache",
-                    "feature=perf-dfa",
-                    "feature=perf-inline",
-                    "feature=perf-literal",
-                    "feature=std",
-                    "feature=unicode",
-                    "feature=unicode-age",
-                    "feature=unicode-bool",
-                    "feature=unicode-case",
-                    "feature=unicode-gencat",
-                    "feature=unicode-perl",
-                    "feature=unicode-script",
-                    "feature=unicode-segment",
-                    "feature=unstable",
-                    "feature=use_std",
-                ],
-            ),
-        ),
-        env: Env {
-            entries: {
-                "CARGO_PKG_LICENSE": "",
-                "CARGO_PKG_VERSION_MAJOR": "1",
-                "CARGO_MANIFEST_DIR": "$ROOT$.cargo/registry/src/github.com-1ecc6299db9ec823/regex-1.7.3",
-                "CARGO_PKG_VERSION": "1.7.3",
-                "CARGO_PKG_AUTHORS": "",
-                "CARGO_CRATE_NAME": "regex",
-                "CARGO_PKG_LICENSE_FILE": "",
-                "CARGO_PKG_HOMEPAGE": "",
-                "CARGO_PKG_DESCRIPTION": "",
-                "CARGO_PKG_NAME": "regex",
-                "CARGO_PKG_VERSION_PATCH": "3",
-                "CARGO": "cargo",
-                "CARGO_PKG_REPOSITORY": "",
-                "CARGO_PKG_VERSION_MINOR": "7",
-                "CARGO_PKG_VERSION_PRE": "",
-            },
-        },
-        dependencies: [],
-        origin: Library {
-            repo: Some(
-                "https://github.com/rust-lang/regex",
-            ),
-            name: "regex",
-        },
-        is_proc_macro: false,
-        target_layout: Err(
-            "target_data_layout not loaded",
-        ),
-        channel: None,
-    },
-    8: CrateData {
-        root_file_id: FileId(
             4,
         ),
         edition: Edition2021,