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/*
* Copyright (C) 2009 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CachedCall_h
#define CachedCall_h
#include "CallFrameClosure.h"
#include "JSFunction.h"
#include "JSGlobalObject.h"
#include "Interpreter.h"
namespace JSC {
class CachedCall {
WTF_MAKE_NONCOPYABLE(CachedCall); WTF_MAKE_FAST_ALLOCATED;
public:
CachedCall(CallFrame* callFrame, JSFunction* function, int argCount)
: m_valid(false)
, m_interpreter(callFrame->interpreter())
, m_globalObjectScope(callFrame->globalData(), function->scope()->globalObject.get())
{
ASSERT(!function->isHostFunction());
m_closure = m_interpreter->prepareForRepeatCall(function->jsExecutable(), callFrame, function, argCount, function->scope());
m_valid = !callFrame->hadException();
}
JSValue call()
{
ASSERT(m_valid);
return m_interpreter->execute(m_closure);
}
void setThis(JSValue v) { m_closure.setArgument(0, v); }
void setArgument(int n, JSValue v) { m_closure.setArgument(n + 1, v); }
CallFrame* newCallFrame(ExecState* exec)
{
CallFrame* callFrame = m_closure.newCallFrame;
callFrame->setScopeChain(exec->scopeChain());
return callFrame;
}
~CachedCall()
{
if (m_valid)
m_interpreter->endRepeatCall(m_closure);
}
private:
bool m_valid;
Interpreter* m_interpreter;
DynamicGlobalObjectScope m_globalObjectScope;
CallFrameClosure m_closure;
};
}
#endif
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