tweak unresolved label suggestion

[rust.git] / src / librustc_resolve / lib.rs

diff --git a/src/librustc_resolve/lib.rs b/src/librustc_resolve/lib.rs
index 1934f800af7575a8e9886fb809d0753408acd62d..0c37296d2411b1a1f6b6fbb21a1c54a9b6b6491d 100644 (file)
--- a/src/librustc_resolve/lib.rs
+++ b/src/librustc_resolve/lib.rs
@@ -357,7 +357,12 @@ fn resolve_struct_error<'sess, 'a>(resolver: &'sess Resolver<'_>,
                                            "use of undeclared label `{}`",
                                            name);
             if let Some(lev_candidate) = lev_candidate {
-                err.span_label(span, format!("did you mean `{}`?", lev_candidate));
+                err.span_suggestion(
+                    span,
+                    "a label with a similar name exists in this scope",
+                    lev_candidate.to_string(),
+                    Applicability::MaybeIncorrect,
+                );
             } else {
                 err.span_label(span, format!("undeclared label `{}`", name));
             }
@@ -4218,7 +4223,13 @@ fn resolve_expr(&mut self, expr: &Expr, parent: Option<&Expr>) {
                         // Picks the first label that is "close enough", which is not necessarily
                         // the closest match
                         let close_match = self.search_label(label.ident, |rib, ident| {
-                            let names = rib.bindings.iter().map(|(id, _)| &id.name);
+                            let names = rib.bindings.iter().filter_map(|(id, _)| {
+                                if id.span.ctxt() == label.ident.span.ctxt() {
+                                    Some(&id.name)
+                                } else {
+                                    None
+                                }
+                            });
                             find_best_match_for_name(names, &*ident.as_str(), None)
                         });
                         self.record_def(expr.id, err_path_resolution());