X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=crates%2Fhir_def%2Fsrc%2Fkeys.rs;h=8cd2d771721493061b0f6acec96dfa7c9a820dc8;hb=0b53744f2d7e0694cd7207cca632fd6de1dc5bff;hp=93c92c1b9c94f347e51b9884ac5e3606b0d7ea09;hpb=e6e72809e3b55da3a57af95e6445a12729331ad6;p=rust.git

diff --git a/crates/hir_def/src/keys.rs b/crates/hir_def/src/keys.rs
index 93c92c1b9c9..8cd2d771721 100644
--- a/crates/hir_def/src/keys.rs
+++ b/crates/hir_def/src/keys.rs
@@ -34,7 +34,8 @@
 
 pub const MACRO: Key<ast::Macro, MacroDefId> = Key::new();
 pub const ATTR_MACRO_CALL: Key<ast::Item, MacroCallId> = Key::new();
-pub const DERIVE_MACRO_CALL: Key<ast::Attr, (AttrId, Box<[Option<MacroCallId>]>)> = Key::new();
+pub const DERIVE_MACRO_CALL: Key<ast::Attr, (AttrId, MacroCallId, Box<[Option<MacroCallId>]>)> =
+    Key::new();
 
 /// XXX: AST Nodes and SyntaxNodes have identity equality semantics: nodes are
 /// equal if they point to exactly the same object.
@@ -60,4 +61,7 @@ fn get<'a>(map: &'a DynMap, key: &AST) -> Option<&'a ID> {
         let key = AstPtr::new(key);
         map.map.get::<FxHashMap<AstPtr<AST>, ID>>()?.get(&key)
     }
+    fn is_empty(map: &DynMap) -> bool {
+        map.map.get::<FxHashMap<AstPtr<AST>, ID>>().map_or(true, |it| it.is_empty())
+    }
 }