Use is_none instead of if let

Centril · Dec 22, 2019 · 101dd7b · 101dd7b
1 parent 9b98af8
commit 101dd7b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/librustc/traits/error_reporting.rs b/src/librustc/traits/error_reporting.rs
@@ -2289,7 +2289,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
         let span = self.tcx.def_span(generator_did);
 
         // Do not ICE on closure typeck (#66868).
-        if let None = self.tcx.hir().as_local_hir_id(generator_did) {
+        if self.tcx.hir().as_local_hir_id(generator_did).is_none() {
             return false;
         }