Bug 1092538 - Ignore null iterable in Map, Set, WeakMap and WeakSet constructors. r=evilpie

2014-11-29 20:57:27 +09:00
parent f86b5f0616
commit 9ff2510008
10 changed files with 20 additions and 13 deletions
--- a/js/src/jsweakmap.cpp
+++ b/js/src/jsweakmap.cpp
@@ -527,7 +527,7 @@ WeakMap_construct(JSContext *cx, unsigned argc, Value *vp)
        return false;

    // ES6 23.3.1.1 steps 5-6, 11.
-    if (args.hasDefined(0)) {
+    if (!args.get(0).isNullOrUndefined()) {
        // Steps 7d-e.
        JS::ForOfIterator iter(cx);
        if (!iter.init(args[0]))