mangle unused nested AST_SymbolCatch correctly (#3038)

fixes #3035
2018-03-30 16:23:09 +09:00
parent 06b9894c19
commit fa3250199a
2 changed files with 82 additions and 5 deletions
--- a/lib/scope.js
+++ b/lib/scope.js
@@ -434,16 +434,19 @@ AST_Toplevel.DEFMETHOD("mangle_names", function(options){
            var redef = def.redefined();
            if (redef) {
                redefined.push(def);
-                def.references.forEach(function(ref) {
-                    ref.thedef = redef;
-                    ref.reference(options);
-                    ref.thedef = def;
-                });
+                reference(node.argname);
+                def.references.forEach(reference);
            }
            descend();
            if (!redef) mangle(def);
            return true;
        }
+
+        function reference(sym) {
+            sym.thedef = redef;
+            sym.reference(options);
+            sym.thedef = def;
+        }
    });
    this.walk(tw);
    redefined.forEach(mangle);