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/*
* Copyright (C) 2011 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 LLIntExceptions_h
#define LLIntExceptions_h
#include <wtf/Platform.h>
#include <wtf/StdLibExtras.h>
#if ENABLE(LLINT)
#include "MacroAssemblerCodeRef.h"
namespace JSC {
class ExecState;
struct Instruction;
namespace LLInt {
// Throw the currently active exception in the context of the caller's call frame.
void interpreterThrowInCaller(ExecState* callerFrame, ReturnAddressPtr);
// Tells you where to jump to if you want to return-to-throw, after you've already
// set up all information needed to throw the exception.
Instruction* returnToThrowForThrownException(ExecState*);
// Saves the current PC in the global data for safe-keeping, and gives you a PC
// that you can tell the interpreter to go to, which when advanced between 1
// and 9 slots will give you an "instruction" that threads to the interpreter's
// exception handler. Note that if you give it the PC for exception handling,
// it's smart enough to just return that PC without doing anything else; this
// lets you thread exception handling through common helper functions used by
// other helpers.
Instruction* returnToThrow(ExecState*, Instruction*);
// Use this when you're throwing to a call thunk.
void* callToThrow(ExecState*, Instruction*);
} } // namespace JSC::LLInt
#endif // ENABLE(LLINT)
#endif // LLIntExceptions_h
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