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Diffstat (limited to 'Source/JavaScriptCore/ftl/FTLExceptionTarget.h')
-rw-r--r-- | Source/JavaScriptCore/ftl/FTLExceptionTarget.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/ftl/FTLExceptionTarget.h b/Source/JavaScriptCore/ftl/FTLExceptionTarget.h new file mode 100644 index 000000000..c338bb466 --- /dev/null +++ b/Source/JavaScriptCore/ftl/FTLExceptionTarget.h @@ -0,0 +1,68 @@ +/* + * Copyright (C) 2016 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 FTLExceptionTarget_h +#define FTLExceptionTarget_h + +#include "DFGCommon.h" + +#if ENABLE(FTL_JIT) + +#include "CCallHelpers.h" +#include "FTLOSRExitHandle.h" +#include <wtf/Box.h> +#include <wtf/ThreadSafeRefCounted.h> + +namespace JSC { namespace FTL { + +class State; + +class ExceptionTarget : public ThreadSafeRefCounted<ExceptionTarget> { +public: + ~ExceptionTarget(); + + // It's OK to call this during linking, but not any sooner. + CodeLocationLabel label(LinkBuffer&); + + // Or, you can get a JumpList at any time. Anything you add to this JumpList will be linked to + // the target's label. + Box<CCallHelpers::JumpList> jumps(CCallHelpers&); + +private: + friend class PatchpointExceptionHandle; + + ExceptionTarget(bool isDefaultHandler, Box<CCallHelpers::Label>, RefPtr<OSRExitHandle>); + + bool m_isDefaultHandler; + Box<CCallHelpers::Label> m_defaultHandler; + RefPtr<OSRExitHandle> m_handle; +}; + +} } // namespace JSC::FTL + +#endif // ENABLE(FTL_JIT) + +#endif // FTLExceptionTarget_h + |