Split SetProperty(...attributes, strictmode) into AddProperty(...attributes) and SetProperty(...…

src/v8natives.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file relies on the fact that the following declarations have been made
 // in runtime.js:
 // var $Object = global.Object;
 // var $Boolean = global.Boolean;
 // var $Number = global.Number;
 // var $Function = global.Function;
@@ skipping 10 matching lines @@
 // Helper function used to install functions on objects.
 function InstallFunctions(object, attributes, functions) {
   if (functions.length >= 8) {
     %OptimizeObjectForAddingMultipleProperties(object, functions.length >> 1);
   }
   for (var i = 0; i < functions.length; i += 2) {
     var key = functions[i];
     var f = functions[i + 1];
     %FunctionSetName(f, key);
     %FunctionRemovePrototype(f);
-    %SetProperty(object, key, f, attributes);
+    %DefineProperty(object, key, f, attributes);
     %SetNativeFlag(f);
   }
   %ToFastProperties(object);
 }
 
 
 // Helper function to install a getter-only accessor property.
 function InstallGetter(object, name, getter) {
   %FunctionSetName(getter, name);
   %FunctionRemovePrototype(getter);
@@ skipping 16 matching lines @@
 
 // Helper function for installing constant properties on objects.
 function InstallConstants(object, constants) {
   if (constants.length >= 4) {
     %OptimizeObjectForAddingMultipleProperties(object, constants.length >> 1);
   }
   var attributes = DONT_ENUM | DONT_DELETE | READ_ONLY;
   for (var i = 0; i < constants.length; i += 2) {
     var name = constants[i];
     var k = constants[i + 1];
-    %SetProperty(object, name, k, attributes);
+    %DefineProperty(object, name, k, attributes);
   }
   %ToFastProperties(object);
 }
 
 
 // Prevents changes to the prototype of a built-in function.
 // The "prototype" property of the function object is made non-configurable,
 // and the prototype object is made non-extensible. The latter prevents
 // changing the __proto__ property.
 function SetUpLockedPrototype(constructor, fields, methods) {
   %CheckIsBootstrapping();
   var prototype = constructor.prototype;
   // Install functions first, because this function is used to initialize
   // PropertyDescriptor itself.
   var property_count = (methods.length >> 1) + (fields ? fields.length : 0);
   if (property_count >= 4) {
     %OptimizeObjectForAddingMultipleProperties(prototype, property_count);
   }
   if (fields) {
     for (var i = 0; i < fields.length; i++) {
-      %SetProperty(prototype, fields[i], UNDEFINED, DONT_ENUM | DONT_DELETE);
+      %DefineProperty(prototype, fields[i], UNDEFINED, DONT_ENUM | DONT_DELETE);
     }
   }
   for (var i = 0; i < methods.length; i += 2) {
     var key = methods[i];
     var f = methods[i + 1];
-    %SetProperty(prototype, key, f, DONT_ENUM | DONT_DELETE | READ_ONLY);
+    %DefineProperty(prototype, key, f, DONT_ENUM | DONT_DELETE | READ_ONLY);
     %SetNativeFlag(f);
   }
   %SetPrototype(prototype, null);
   %ToFastProperties(prototype);
 }
 
 
 // ----------------------------------------------------------------------------
 
 
@@ skipping 77 matching lines @@
 
 // ----------------------------------------------------------------------------
 
 // Set up global object.
 function SetUpGlobal() {
   %CheckIsBootstrapping();
 
   var attributes = DONT_ENUM | DONT_DELETE | READ_ONLY;
 
   // ECMA 262 - 15.1.1.1.
-  %SetProperty(global, "NaN", NAN, attributes);
+  %DefineProperty(global, "NaN", NAN, attributes);
 
   // ECMA-262 - 15.1.1.2.
-  %SetProperty(global, "Infinity", INFINITY, attributes);
+  %DefineProperty(global, "Infinity", INFINITY, attributes);
 
   // ECMA-262 - 15.1.1.3.
-  %SetProperty(global, "undefined", UNDEFINED, attributes);
+  %DefineProperty(global, "undefined", UNDEFINED, attributes);
 
   // Set up non-enumerable function on the global object.
   InstallFunctions(global, DONT_ENUM, $Array(
     "isNaN", GlobalIsNaN,
     "isFinite", GlobalIsFinite,
     "parseInt", GlobalParseInt,
     "parseFloat", GlobalParseFloat,
     "eval", GlobalEval
   ));
 }
@@ skipping 1180 matching lines @@
 
 // ----------------------------------------------------------------------------
 // Object
 
 function SetUpObject() {
   %CheckIsBootstrapping();
 
   %SetNativeFlag($Object);
   %SetCode($Object, ObjectConstructor);
 
-  %SetProperty($Object.prototype, "constructor", $Object, DONT_ENUM);
+  %DefineProperty($Object.prototype, "constructor", $Object, DONT_ENUM);
 
   // Set up non-enumerable functions on the Object.prototype object.
   InstallFunctions($Object.prototype, DONT_ENUM, $Array(
     "toString", ObjectToString,
     "toLocaleString", ObjectToLocaleString,
     "valueOf", ObjectValueOf,
     "hasOwnProperty", ObjectHasOwnProperty,
     "isPrototypeOf", ObjectIsPrototypeOf,
     "propertyIsEnumerable", ObjectPropertyIsEnumerable,
     "__defineGetter__", ObjectDefineGetter,
@@ skipping 66 matching lines @@
 }
 
 
 // ----------------------------------------------------------------------------
 
 function SetUpBoolean () {
   %CheckIsBootstrapping();
 
   %SetCode($Boolean, BooleanConstructor);
   %FunctionSetPrototype($Boolean, new $Boolean(false));
-  %SetProperty($Boolean.prototype, "constructor", $Boolean, DONT_ENUM);
+  %DefineProperty($Boolean.prototype, "constructor", $Boolean, DONT_ENUM);
 
   InstallFunctions($Boolean.prototype, DONT_ENUM, $Array(
     "toString", BooleanToString,
     "valueOf", BooleanValueOf
   ));
 }
 
 SetUpBoolean();
 
 
@@ skipping 162 matching lines @@
 // ----------------------------------------------------------------------------
 
 function SetUpNumber() {
   %CheckIsBootstrapping();
 
   %SetCode($Number, NumberConstructor);
   %FunctionSetPrototype($Number, new $Number(0));
 
   %OptimizeObjectForAddingMultipleProperties($Number.prototype, 8);
   // Set up the constructor property on the Number prototype object.
-  %SetProperty($Number.prototype, "constructor", $Number, DONT_ENUM);
+  %DefineProperty($Number.prototype, "constructor", $Number, DONT_ENUM);
 
   InstallConstants($Number, $Array(
       // ECMA-262 section 15.7.3.1.
       "MAX_VALUE", 1.7976931348623157e+308,
       // ECMA-262 section 15.7.3.2.
       "MIN_VALUE", 5e-324,
       // ECMA-262 section 15.7.3.3.
       "NaN", NAN,
       // ECMA-262 section 15.7.3.4.
       "NEGATIVE_INFINITY", -INFINITY,
@@ skipping 162 matching lines @@
   return f;
 }
 
 
 // ----------------------------------------------------------------------------
 
 function SetUpFunction() {
   %CheckIsBootstrapping();
 
   %SetCode($Function, FunctionConstructor);
-  %SetProperty($Function.prototype, "constructor", $Function, DONT_ENUM);
+  %DefineProperty($Function.prototype, "constructor", $Function, DONT_ENUM);
 
   InstallFunctions($Function.prototype, DONT_ENUM, $Array(
     "bind", FunctionBind,
     "toString", FunctionToString
   ));
 }
 
 SetUpFunction();