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      1 // Copyright 2013 the V8 project authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "src/extensions/free-buffer-extension.h"
      6 
      7 #include "src/base/platform/platform.h"
      8 #include "src/isolate.h"
      9 
     10 namespace v8 {
     11 namespace internal {
     12 
     13 
     14 v8::Local<v8::FunctionTemplate> FreeBufferExtension::GetNativeFunctionTemplate(
     15     v8::Isolate* isolate, v8::Local<v8::String> str) {
     16   return v8::FunctionTemplate::New(isolate, FreeBufferExtension::FreeBuffer);
     17 }
     18 
     19 
     20 void FreeBufferExtension::FreeBuffer(
     21     const v8::FunctionCallbackInfo<v8::Value>& args) {
     22   v8::Local<v8::ArrayBuffer> arrayBuffer = args[0].As<v8::ArrayBuffer>();
     23   v8::ArrayBuffer::Contents contents = arrayBuffer->Externalize();
     24   Isolate* isolate = reinterpret_cast<Isolate*>(args.GetIsolate());
     25   isolate->array_buffer_allocator()->Free(contents.Data(),
     26                                           contents.ByteLength());
     27 }
     28 
     29 }  // namespace internal
     30 }  // namespace v8
     31