1 files changed, 12 insertions, 2 deletions

diff --git a/crates/ra_hir/src/from_id.rs b/crates/ra_hir/src/from_id.rs
index 089dbc908..9633ef586 100644
--- a/crates/ra_hir/src/from_id.rs
+++ b/crates/ra_hir/src/from_id.rs
@@ -3,9 +3,9 @@
 //! It's unclear if we need this long-term, but it's definitelly useful while we
 //! are splitting the hir.
 
-use hir_def::{AdtId, EnumVariantId, ModuleDefId};
+use hir_def::{AdtId, DefWithBodyId, EnumVariantId, ModuleDefId};
 
-use crate::{Adt, EnumVariant, ModuleDef};
+use crate::{Adt, DefWithBody, EnumVariant, ModuleDef};
 
 macro_rules! from_id {
     ($(($id:path, $ty:path)),*) => {$(
@@ -61,3 +61,13 @@ impl From<ModuleDefId> for ModuleDef {
         }
     }
 }
+
+impl From<DefWithBody> for DefWithBodyId {
+    fn from(def: DefWithBody) -> Self {
+        match def {
+            DefWithBody::Function(it) => DefWithBodyId::FunctionId(it.id),
+            DefWithBody::Static(it) => DefWithBodyId::StaticId(it.id),
+            DefWithBody::Const(it) => DefWithBodyId::ConstId(it.id),
+        }
+    }
+}