compute uses_arguments correctly in figure_out_scope() (#2099)

fixes #2097
2017-06-15 03:28:26 +08:00
parent 0a1e523cd5
commit 3f961bbba0
2 changed files with 31 additions and 3 deletions
--- a/lib/scope.js
+++ b/lib/scope.js
@@ -197,11 +197,10 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options){
                }
            }
            var sym = node.scope.find_variable(name);
-            if (node.scope instanceof AST_Lambda && name == "arguments") {
-                node.scope.uses_arguments = true;
-            }
            if (!sym) {
                sym = self.def_global(node);
+            } else if (sym.scope instanceof AST_Lambda && name == "arguments") {
+                sym.scope.uses_arguments = true;
            }
            node.thedef = sym;
            node.reference(options);