Merge #4990

4990: Introduce an ItemTree layer to avoid reparsing files r=matklad a=jonas-schievink

This reduces the latency of "go to definition" in a simple benchmark on rust-analyzer by around 30%.

cc https://github.com/rust-analyzer/rust-analyzer/issues/1650
Closes https://github.com/rust-analyzer/rust-analyzer/issues/3485

Co-authored-by: Aleksey Kladov <[email protected]>
Co-authored-by: Jonas Schievink <[email protected]>
Co-authored-by: Jonas Schievink <[email protected]>

1 files changed, 6 insertions, 6 deletions

diff --git a/crates/ra_hir_def/src/nameres/tests/mod_resolution.rs b/crates/ra_hir_def/src/nameres/tests/mod_resolution.rs
index b43b294ca..e9a5e4cba 100644
--- a/crates/ra_hir_def/src/nameres/tests/mod_resolution.rs
+++ b/crates/ra_hir_def/src/nameres/tests/mod_resolution.rs
@@ -20,8 +20,11 @@ fn name_res_works_for_broken_modules() {
         ",
     );
     assert_snapshot!(map, @r###"
-        ⋮crate
-        ⋮Baz: _
+crate
+Baz: _
+foo: t
+
+crate::foo
     "###);
 }
 
@@ -719,10 +722,7 @@ fn unresolved_module_diagnostics() {
                         ),
                     ),
                 ),
-                value: FileAstId {
-                    raw: Idx::<SyntaxNodePtr>(1),
-                    _ty: PhantomData,
-                },
+                value: FileAstId::<ra_syntax::ast::generated::nodes::Module>(1),
             },
             candidate: "bar.rs",
         },