| /* |
| * 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 |
