Merge r5068, r5072 and r5176 to get all current changes to freeze/isFrozen an...

src/v8natives.js

Index: src/v8natives.js
===================================================================
--- src/v8natives.js	(revision 5203)
+++ src/v8natives.js	(working copy)
@@ -745,6 +745,23 @@
 }
 
 
+// ES5 section 15.2.3.8.
+function ObjectSeal(obj) {
+  if ((!IS_SPEC_OBJECT_OR_NULL(obj) || IS_NULL_OR_UNDEFINED(obj)) &&
+      !IS_UNDETECTABLE(obj)) {
+    throw MakeTypeError("obj_ctor_property_non_object", ["seal"]);
+  }
+  var names = ObjectGetOwnPropertyNames(obj);
+  for (var key in names) {
+    var name = names[key];
+    var desc = GetOwnProperty(obj, name);
+    if (desc.isConfigurable()) desc.setConfigurable(false);
+    DefineOwnProperty(obj, name, desc, true);
+  }  
+  return ObjectPreventExtension(obj);
+}
+
+
 // ES5 section 15.2.3.9.
 function ObjectFreeze(obj) {
   if ((!IS_SPEC_OBJECT_OR_NULL(obj) || IS_NULL_OR_UNDEFINED(obj)) &&
@@ -759,7 +776,7 @@
     if (desc.isConfigurable()) desc.setConfigurable(false);
     DefineOwnProperty(obj, name, desc, true);
   }  
-  ObjectPreventExtension(obj);
+  return ObjectPreventExtension(obj);
 }
 
 
@@ -774,6 +791,25 @@
 }
 
 
+// ES5 section 15.2.3.11
+function ObjectIsSealed(obj) {
+  if ((!IS_SPEC_OBJECT_OR_NULL(obj) || IS_NULL_OR_UNDEFINED(obj)) &&
+      !IS_UNDETECTABLE(obj)) {
+    throw MakeTypeError("obj_ctor_property_non_object", ["isSealed"]);
+  }
+  var names = ObjectGetOwnPropertyNames(obj);
+  for (var key in names) {
+    var name = names[key];
+    var desc = GetOwnProperty(obj, name);
+    if (desc.isConfigurable()) return false;
+  }
+  if (!ObjectIsExtensible(obj)) {
+    return true;
+  }
+  return false;
+}
+
+
 // ES5 section 15.2.3.12
 function ObjectIsFrozen(obj) {
   if ((!IS_SPEC_OBJECT_OR_NULL(obj) || IS_NULL_OR_UNDEFINED(obj)) &&
@@ -784,8 +820,8 @@
   for (var key in names) {
     var name = names[key];
     var desc = GetOwnProperty(obj, name);
-    if (IsDataDescriptor(desc) && desc.writable) return false;
-    if (desc.configurable) return false;
+    if (IsDataDescriptor(desc) && desc.isWritable()) return false;
+    if (desc.isConfigurable()) return false;
   }
   if (!ObjectIsExtensible(obj)) {
     return true;
@@ -843,7 +879,9 @@
     "getOwnPropertyNames", ObjectGetOwnPropertyNames,
     "isExtensible", ObjectIsExtensible,
     "isFrozen", ObjectIsFrozen,
-    "preventExtensions", ObjectPreventExtension
+    "isSealed", ObjectIsSealed,
+    "preventExtensions", ObjectPreventExtension,
+    "seal", ObjectSeal
   ));
 }