[SAB] Implement SharedArrayBuffer.prototype.slice

src/builtins/builtins-sharedarraybuffer.cc

 // Copyright 2016 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.
 
 #include "src/base/macros.h"
 #include "src/base/platform/mutex.h"
 #include "src/base/platform/time.h"
 #include "src/builtins/builtins-utils.h"
 #include "src/builtins/builtins.h"
 #include "src/code-factory.h"
 #include "src/conversions-inl.h"
 #include "src/counters.h"
 #include "src/factory.h"
 #include "src/futex-emulation.h"
 #include "src/globals.h"
 #include "src/objects-inl.h"
 
 namespace v8 {
 namespace internal {
 
-// ES7 sharedmem 6.3.4.1 get SharedArrayBuffer.prototype.byteLength
-BUILTIN(SharedArrayBufferPrototypeGetByteLength) {
-  HandleScope scope(isolate);
-  CHECK_RECEIVER(JSArrayBuffer, array_buffer,
-                 "get SharedArrayBuffer.prototype.byteLength");
-  if (!array_buffer->is_shared()) {
-    THROW_NEW_ERROR_RETURN_FAILURE(
-        isolate, NewTypeError(MessageTemplate::kIncompatibleMethodReceiver,
-                              isolate->factory()->NewStringFromAsciiChecked(
-                                  "get SharedArrayBuffer.prototype.byteLength"),
-                              args.receiver()));
-  }
-  return array_buffer->byte_length();
-}
+// See builtins-arraybuffer.cc for implementations of
+// SharedArrayBuffer.prototye.byteLength and SharedArrayBuffer.prototype.slice
 
 inline bool AtomicIsLockFree(uint32_t size) {
   return size == 1 || size == 2 || size == 4;
 }
 
 // ES #sec-atomics.islockfree
 BUILTIN(AtomicsIsLockFree) {
   HandleScope scope(isolate);
   Handle<Object> size = args.atOrUndefined(isolate, 1);
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, size, Object::ToNumber(size));
@@ skipping 507 matching lines @@
     default:
       break;
   }
 
   UNREACHABLE();
   return isolate->heap()->undefined_value();
 }
 
 }  // namespace internal
 }  // namespace v8