Implement the unused_macro_rules lint

[rust.git] / compiler / rustc_expand / src / base.rs

diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs
index ae1b50a4176873ef2900182fa247039af2a9ecbd..3d28da684d14e3d16e15264e721126e826f3252d 100644 (file)
--- a/compiler/rustc_expand/src/base.rs
+++ b/compiler/rustc_expand/src/base.rs
@@ -887,6 +887,8 @@ fn resolve_macro_invocation(
         force: bool,
     ) -> Result<Lrc<SyntaxExtension>, Indeterminate>;
 
+    fn record_macro_rule_usage(&mut self, mac_id: NodeId, rule_index: usize);
+
     fn check_unused_macros(&mut self);
 
     // Resolver interfaces for specific built-in macros.