1 files changed, 10 insertions, 0 deletions

diff --git a/crates/ra_hir_def/src/lib.rs b/crates/ra_hir_def/src/lib.rs
index 274dd1467..ea3f00bb3 100644
--- a/crates/ra_hir_def/src/lib.rs
+++ b/crates/ra_hir_def/src/lib.rs
@@ -398,6 +398,16 @@ impl_froms!(
     ConstId
 );
 
+impl From<AssocItemId> for GenericDefId {
+    fn from(item: AssocItemId) -> Self {
+        match item {
+            AssocItemId::FunctionId(f) => f.into(),
+            AssocItemId::ConstId(c) => c.into(),
+            AssocItemId::TypeAliasId(t) => t.into(),
+        }
+    }
+}
+
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
 pub enum AttrDefId {
     ModuleId(ModuleId),