WIP SharedArrayBuffer implementation

src/arraybuffer.js

 // Copyright 2013 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.
 
 "use strict";
 
 var $ArrayBuffer = global.ArrayBuffer;
 
 // -------------------------------------------------------------------
 
 function ArrayBufferConstructor(length) { // length = 1
   if (%_IsConstructCall()) {
     var byteLength = ToPositiveInteger(length, 'invalid_array_buffer_length');
-    %ArrayBufferInitialize(this, byteLength);
+    %ArrayBufferInitialize(this, byteLength, false);
   } else {
     throw MakeTypeError('constructor_not_function', ["ArrayBuffer"]);
   }
 }
 
 function ArrayBufferGetByteLen() {
   if (!IS_ARRAYBUFFER(this)) {
     throw MakeTypeError('incompatible_method_receiver',
                         ['ArrayBuffer.prototype.byteLength', this]);
   }
@@ skipping 60 matching lines @@
   InstallFunctions($ArrayBuffer, DONT_ENUM, $Array(
       "isView", ArrayBufferIsViewJS
   ));
 
   InstallFunctions($ArrayBuffer.prototype, DONT_ENUM, $Array(
       "slice", ArrayBufferSlice
   ));
 }
 
 SetUpArrayBuffer();
+
+// -------------------------------------------------------------------
+
+var $SharedArrayBuffer = global.SharedArrayBuffer;
+
+function SharedArrayBufferConstructor(length) { // length = 1
+  if (%_IsConstructCall()) {
+    var byteLength = ToPositiveInteger(length, 'invalid_array_buffer_length');
+    %ArrayBufferInitialize(this, byteLength, true);
+  } else {
+    throw MakeTypeError('constructor_not_function', ["SharedArrayBuffer"]);
+  }
+}
+
+function SharedArrayBufferGetByteLen() {
+  if (!IS_SHAREDARRAYBUFFER(this)) {
+    throw MakeTypeError('incompatible_method_receiver',
+                        ['SharedArrayBuffer.prototype.byteLength', this]);
+  }
+  return %_ArrayBufferGetByteLength(this);
+}
+
+function SharedArrayBufferIsViewJS(obj) {
+  return %ArrayBufferIsView(obj);
+}
+
+function SetUpSharedArrayBuffer() {
+  %CheckIsBootstrapping();
+
+  // Set up the SharedArrayBuffer constructor function.
+  %SetCode($SharedArrayBuffer, SharedArrayBufferConstructor);
+  %FunctionSetPrototype($SharedArrayBuffer, new $Object());
+
+  // Set up the constructor property on the SharedArrayBuffer prototype object.
+  %AddNamedProperty($SharedArrayBuffer.prototype, "constructor",
+      $SharedArrayBuffer, DONT_ENUM);
+
+  %AddNamedProperty($SharedArrayBuffer.prototype,
+      symbolToStringTag, "SharedArrayBuffer", DONT_ENUM | READ_ONLY);
+
+  InstallGetter($SharedArrayBuffer.prototype, "byteLength",
+                SharedArrayBufferGetByteLen);
+
+  InstallFunctions($SharedArrayBuffer, DONT_ENUM, $Array(
+      "isView", SharedArrayBufferIsViewJS
+  ));
+}
+
+SetUpSharedArrayBuffer();