Merge #8386

8386: Avoid O(n²) when constructing AttrSourceMap r=jonas-schievink a=jonas-schievink

Brings https://github.com/rust-analyzer/rust-analyzer/issues/8377 down to 2.52s on my machine. Not quite back to where it was before, so I'll leave that issue open for now.

bors r+

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

1 files changed, 8 insertions, 0 deletions

diff --git a/crates/hir_def/src/lib.rs b/crates/hir_def/src/lib.rs
index abd6c553f..e2af0e514 100644
--- a/crates/hir_def/src/lib.rs
+++ b/crates/hir_def/src/lib.rs
@@ -453,6 +453,14 @@ impl VariantId {
             }
         }
     }
+
+    pub fn file_id(self, db: &dyn db::DefDatabase) -> HirFileId {
+        match self {
+            VariantId::EnumVariantId(it) => it.parent.lookup(db).id.file_id(),
+            VariantId::StructId(it) => it.lookup(db).id.file_id(),
+            VariantId::UnionId(it) => it.lookup(db).id.file_id(),
+        }
+    }
 }
 
 trait Intern {