fix reference marking in for-in loops (#1535)

fixes #1533
2017-03-03 00:56:06 +08:00
parent b49e142a26
commit fe9227a41b
2 changed files with 41 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -244,7 +244,11 @@ merge(Compressor.prototype, {
                }
                if (node instanceof AST_ForIn) {
                    if (node.init instanceof AST_SymbolRef) {
-                        node.init.definition().fixed = false;
+                        var d = node.init.definition();
+                        d.references.push(node.init);
+                        d.fixed = false;
+                    } else {
+                        node.init.walk(tw);
                    }
                    node.object.walk(tw);
                    push();