# HG changeset patch
# User Saurabh Anand <saurabhanandiit@gmail.com>
# Date 1354565985 -19800
# Node ID 0904a74e403604df38d849b401b4977990b0244e
# Parent  d9020fa719c5b6dec93dfc981fe79340d8535d4b
Bug 814562 - Implement clear() on WeakMaps

diff --git a/js/src/jsweakmap.cpp b/js/src/jsweakmap.cpp
--- a/js/src/jsweakmap.cpp
+++ b/js/src/jsweakmap.cpp
@@ -167,16 +167,36 @@ WeakMap_has_impl(JSContext *cx, CallArgs
 JSBool
 WeakMap_has(JSContext *cx, unsigned argc, Value *vp)
 {
     CallArgs args = CallArgsFromVp(argc, vp);
     return CallNonGenericMethod<IsWeakMap, WeakMap_has_impl>(cx, args);
 }
 
 JS_ALWAYS_INLINE bool
+WeakMap_clear_impl(JSContext *cx, CallArgs args)
+{
+    JS_ASSERT(IsWeakMap(args.thisv()));
+
+    if (ObjectValueMap *map = GetObjectMap(&args.thisv().toObject())) {
+        map->clear();
+    }
+
+    args.rval().setUndefined();
+    return true;
+}
+
+JSBool
+WeakMap_clear(JSContext *cx, unsigned argc, Value *vp)
+{
+    CallArgs args = CallArgsFromVp(argc, vp);
+    return CallNonGenericMethod<IsWeakMap, WeakMap_clear_impl>(cx, args);
+}
+
+JS_ALWAYS_INLINE bool
 WeakMap_get_impl(JSContext *cx, CallArgs args)
 {
     JS_ASSERT(IsWeakMap(args.thisv()));
 
     if (args.length() < 1) {
         JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_MORE_ARGS_NEEDED,
                              "WeakMap.get", "0", "s");
         return false;
@@ -366,16 +386,17 @@ Class js::WeakMapClass = {
     NULL,                    /* call        */
     NULL,                    /* construct   */
     NULL,                    /* xdrObject   */
     WeakMap_mark
 };
 
 static JSFunctionSpec weak_map_methods[] = {
     JS_FN("has",    WeakMap_has, 1, 0),
+    JS_FN("clear",  WeakMap_clear, 0, 0),
     JS_FN("get",    WeakMap_get, 2, 0),
     JS_FN("delete", WeakMap_delete, 1, 0),
     JS_FN("set",    WeakMap_set, 2, 0),
     JS_FS_END
 };
 
 JSObject *
 js_InitWeakMapClass(JSContext *cx, HandleObject obj)