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// Copyright 2013 The Chromium 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 "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "gin/gin_export.h"
#include "v8/include/v8.h"
namespace gin {
class PerIsolateData;
// To embed Gin, first create an instance of IsolateHolder to hold the
// v8::Isolate in which you will execute JavaScript. You might wish to subclass
// IsolateHolder if you want to tie more state to the lifetime of the isolate.
// You can use gin in two modes: either gin manages V8, or the gin-embedder
// manages gin. If gin manages V8, use the IsolateHolder constructor that does
// not take an v8::Isolate parameter, otherwise, the gin-embedder needs to
// create v8::Isolates and pass them to IsolateHolder.
// It is not possible to mix the two.
class GIN_EXPORT IsolateHolder {
// Controls whether or not V8 should only accept strict mode scripts.
enum ScriptMode {
explicit IsolateHolder(ScriptMode mode);
IsolateHolder(v8::Isolate* isolate, v8::ArrayBuffer::Allocator* allocator);
v8::Isolate* isolate() { return isolate_; }
void Init(v8::ArrayBuffer::Allocator* allocator);
bool isolate_owner_;
v8::Isolate* isolate_;
scoped_ptr<PerIsolateData> isolate_data_;
} // namespace gin