use loc2id for FnIds

1 files changed, 2 insertions, 2 deletions

diff --git a/crates/ra_analysis/src/descriptors/function/imp.rs b/crates/ra_analysis/src/descriptors/function/imp.rs
index a989a04cd..a7257acf9 100644
--- a/crates/ra_analysis/src/descriptors/function/imp.rs
+++ b/crates/ra_analysis/src/descriptors/function/imp.rs
@@ -8,9 +8,9 @@ use crate::descriptors::{
 };
 
 /// Resolve `FnId` to the corresponding `SyntaxNode`
-/// TODO: this should return something more type-safe then `SyntaxNode`
 pub(crate) fn fn_syntax(db: &impl DescriptorDatabase, fn_id: FnId) -> FnDefNode {
-    let syntax = db.resolve_syntax_ptr(fn_id.0);
+    let ptr = db.id_maps().fn_ptr(fn_id);
+    let syntax = db.resolve_syntax_ptr(ptr);
     FnDef::cast(syntax.borrowed()).unwrap().owned()
 }