Make following ES5 function work with undetectable parameter/target (document...

src/v8natives.js

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 203 matching lines @@
 
 
 // ECMA-262 - 15.2.4.5
 function ObjectHasOwnProperty(V) {
   return %HasLocalProperty(ToObject(this), ToString(V));
 }
 
 
 // ECMA-262 - 15.2.4.6
 function ObjectIsPrototypeOf(V) {
-  if (!IS_OBJECT(V) && !IS_FUNCTION(V)) return false;
+  if (!IS_OBJECT(V) && !IS_FUNCTION(V) && !IS_UNDETECTABLE(V)) return false;
   return %IsInPrototypeChain(this, V);
 }
 
 
 // ECMA-262 - 15.2.4.6
 function ObjectPropertyIsEnumerable(V) {
   if (this == null) return false;
   if (!IS_OBJECT(this) && !IS_FUNCTION(this)) return false;
   return %IsPropertyEnumerable(this, ToString(V));
 }
 
 
 // Extensions for providing property getters and setters.
 function ObjectDefineGetter(name, fun) {
-  if (this == null) {
+  if (this == null && !IS_UNDETECTABLE(this)) {
     throw new $TypeError('Object.prototype.__defineGetter__: this is Null');
   }
   if (!IS_FUNCTION(fun)) {
     throw new $TypeError('Object.prototype.__defineGetter__: Expecting function');
   }
   return %DefineAccessor(ToObject(this), ToString(name), GETTER, fun);
 }
 
 
 function ObjectLookupGetter(name) {
-  if (this == null) {
+  if (this == null && !IS_UNDETECTABLE(this)) {
     throw new $TypeError('Object.prototype.__lookupGetter__: this is Null');
   }
   return %LookupAccessor(ToObject(this), ToString(name), GETTER);
 }
 
 
 function ObjectDefineSetter(name, fun) {
-  if (this == null) {
+  if (this == null && !IS_UNDETECTABLE(this)) {
     throw new $TypeError('Object.prototype.__defineSetter__: this is Null');
   }
   if (!IS_FUNCTION(fun)) {
     throw new $TypeError(
         'Object.prototype.__defineSetter__: Expecting function');
   }
   return %DefineAccessor(ToObject(this), ToString(name), SETTER, fun);
 }
 
 
 function ObjectLookupSetter(name) {
-  if (this == null) {
+  if (this == null && !IS_UNDETECTABLE(this)) {
     throw new $TypeError('Object.prototype.__lookupSetter__: this is Null');
   }
   return %LookupAccessor(ToObject(this), ToString(name), SETTER);
 }
 
 
 function ObjectKeys(obj) {
-  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+      !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["keys"]);
   return %LocalKeys(obj);
 }
 
 
 // ES5 8.10.1.
 function IsAccessorDescriptor(desc) {
   if (IS_UNDEFINED(desc)) return false;
   return desc.hasGetter_ || desc.hasSetter_;
 }
@@ skipping 298 matching lines @@
     if (desc.hasSetter() && IS_FUNCTION(desc.getSet())) {
       %DefineOrRedefineAccessorProperty(obj, p, SETTER, desc.getSet(), flag);
     }
   }
   return true;
 }
 
 
 // ES5 section 15.2.3.2.
 function ObjectGetPrototypeOf(obj) {
-  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+      !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["getPrototypeOf"]);
   return obj.__proto__;
 }
 
 
 // ES5 section 15.2.3.3 
 function ObjectGetOwnPropertyDescriptor(obj, p) {
-  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+      !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["getOwnPropertyDescriptor"]);
   var desc = GetOwnProperty(obj, p);
   return FromPropertyDescriptor(desc);
 }
 
 
 // ES5 section 15.2.3.4.
 function ObjectGetOwnPropertyNames(obj) {
-  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+      !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["getOwnPropertyNames"]);
 
   // Find all the indexed properties.
 
   // Get the local element names.
   var propertyNames = %GetLocalElementNames(obj);
 
   // Get names for indexed interceptor properties.
   if (%GetInterceptorInfo(obj) & 1) {
     var indexedInterceptorNames =
@@ skipping 32 matching lines @@
   }
   var obj = new $Object();
   obj.__proto__ = proto;
   if (!IS_UNDEFINED(properties)) ObjectDefineProperties(obj, properties);
   return obj;
 }
 
 
 // ES5 section 15.2.3.6.
 function ObjectDefineProperty(obj, p, attributes) {
-  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+      !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["defineProperty"]);
   var name = ToString(p);
   var desc = ToPropertyDescriptor(attributes);
   DefineOwnProperty(obj, name, desc, true);
   return obj;
 }
 
 
 // ES5 section 15.2.3.7.
 function ObjectDefineProperties(obj, properties) {
- if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+ if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+     !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["defineProperties"]);
   var props = ToObject(properties);
   var key_values = [];
   for (var key in props) {
     if (%HasLocalProperty(props, key)) {
       key_values.push(key);
       var value = props[key];
       var desc = ToPropertyDescriptor(value);
       key_values.push(desc);
     }
@@ skipping 303 matching lines @@
 
 // ----------------------------------------------------------------------------
 
 function SetupFunction() {
   InstallFunctions($Function.prototype, DONT_ENUM, $Array(
     "toString", FunctionToString
   ));
 }
 
 SetupFunction();