fix corner case in ie8 & rename (#3474)

fixes #3473
2019-10-15 07:27:02 +08:00
parent 736019b767
commit d3d1d11926
6 changed files with 118 additions and 5 deletions
--- a/lib/scope.js
+++ b/lib/scope.js
@@ -192,7 +192,11 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options) {
    // pass 3: fix up any scoping issue with IE8
    if (options.ie8) self.walk(new TreeWalker(function(node) {
        if (node instanceof AST_SymbolCatch) {
-            redefine(node, node.thedef.defun);
+            var scope = node.thedef.defun;
+            if (scope.name instanceof AST_SymbolLambda && scope.name.name == node.name) {
+                scope = scope.parent_scope;
+            }
+            redefine(node, scope);
            return true;
        }
        if (node instanceof AST_SymbolLambda) {