changeset: 229387:7f06ae718751

user:        ziyunfei <446240525@qq.com>
files:       js/src/builtin/Object.cpp js/src/tests/ecma_6/Object/isSealed.js
description:
Bug 1062860 - Object.isSealed() should return true when given primitive values as input. r=till

js/src/builtin/Object.cpp

@@ -1094,17 +1094,21 @@ obj_seal(JSContext *cx, unsigned argc, Value *vp)
     return JSObject::seal(cx, obj);
 }
 
+// ES6 draft rev27 (2014/08/24) 19.1.2.13 Object.isSealed(O)
 static bool
 obj_isSealed(JSContext *cx, unsigned argc, Value *vp)
 {
     CallArgs args = CallArgsFromVp(argc, vp);
-    RootedObject obj(cx);
-    if (!GetFirstArgumentAsObject(cx, args, "Object.isSealed", &obj))
-        return false;
 
-    bool sealed;
-    if (!JSObject::isSealed(cx, obj, &sealed))
-        return false;
+    // step 1
+    bool sealed = true;
+
+    // step 2
+    if (args.get(0).isObject()) {
+        RootedObject obj(cx, &args.get(0).toObject());
+        if (!JSObject::isSealed(cx, obj, &sealed))
+            return false;
+    }
     args.rval().setBoolean(sealed);
     return true;
 }

js/src/tests/ecma_6/Object/isSealed.js

@@ -0,0 +1,21 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * https://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+var BUGNUMBER = 1062860;
+var summary = "Object.isSealed() should return true when given primitive values as input";
+
+print(BUGNUMBER + ": " + summary);
+assertEq(Object.isSealed(), true);
+assertEq(Object.isSealed(undefined), true);
+assertEq(Object.isSealed(null), true);
+assertEq(Object.isSealed(1), true);
+assertEq(Object.isSealed("foo"), true);
+assertEq(Object.isSealed(true), true);
+if (typeof Symbol === "function") {
+    assertEq(Object.isSealed(Symbol()), true);
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);