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// Copyright (c) 2006-2008 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.
#ifndef V8_UTILITY_H__
#define V8_UTILITY_H__
namespace WebCore {
class AllowAllocation {
public:
inline AllowAllocation() {
m_prev = m_current;
m_current = true;
}
inline ~AllowAllocation() {
m_current = m_prev;
}
static bool m_current;
private:
bool m_prev;
};
class SafeAllocation {
public:
static inline v8::Local<v8::Object> NewInstance(
v8::Handle<v8::Function> fun);
static inline v8::Local<v8::Object> NewInstance(
v8::Handle<v8::ObjectTemplate> templ);
static inline v8::Local<v8::Object> NewInstance(
v8::Handle<v8::Function> fun, int argc, v8::Handle<v8::Value> argv[]);
};
v8::Local<v8::Object> SafeAllocation::NewInstance(
v8::Handle<v8::Function> fun) {
if (fun.IsEmpty())
return v8::Local<v8::Object>();
AllowAllocation allow;
return fun->NewInstance();
}
v8::Local<v8::Object> SafeAllocation::NewInstance(
v8::Handle<v8::ObjectTemplate> templ) {
if (templ.IsEmpty()) return v8::Local<v8::Object>();
AllowAllocation allow;
return templ->NewInstance();
}
v8::Local<v8::Object> SafeAllocation::NewInstance(
v8::Handle<v8::Function> fun, int argc, v8::Handle<v8::Value> argv[]) {
if (fun.IsEmpty()) return v8::Local<v8::Object>();
AllowAllocation allow;
return fun->NewInstance(argc, argv);
}
} // namespace WebCore
#endif // V8_UTILITY_H__
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