mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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73 lines
4.1 KiB
C++
73 lines
4.1 KiB
C++
/*
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* Copyright (C) 2012-2016 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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namespace JSC {
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enum ExitKind : uint8_t {
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ExitKindUnset,
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BadType, // We exited because a type prediction was wrong.
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BadConstantValue, // We exited because we made an incorrect assumption about what value we would see. Usually used for function checks.
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BadIdent, // We exited because we made an incorrect assumption about what identifier we would see. Usually used for cached Id check in get_by_val.
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BadExecutable, // We exited because we made an incorrect assumption about what executable we would see.
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BadCache, // We exited because an inline cache was wrong.
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BadConstantCache, // We exited because a cache on a weak constant (usually a prototype) was wrong.
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BadIndexingType, // We exited because an indexing type was wrong.
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BadTypeInfoFlags, // We exited because we made an incorrect assumption about what TypeInfo flags we would see.
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Overflow, // We exited because of overflow.
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NegativeZero, // We exited because we encountered negative zero.
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NegativeIndex, // We exited because we encountered a negative index in a place we didn't want to see it.
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Int52Overflow, // We exited because of an Int52 overflow.
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StoreToHole, // We had a store to a hole.
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LoadFromHole, // We had a load from a hole.
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OutOfBounds, // We had an out-of-bounds access to an array.
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InadequateCoverage, // We exited because we ended up in code that didn't have profiling coverage.
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ArgumentsEscaped, // We exited because arguments escaped but we didn't expect them to.
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ExoticObjectMode, // We exited because some exotic object that we were accessing was in an exotic mode (like Arguments with slow arguments).
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VarargsOverflow, // We exited because a varargs call passed more arguments than we expected.
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TDZFailure, // We exited because we were in the TDZ and accessed the variable.
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HoistingFailed, // Something that was hoisted exited. So, assume that hoisting is a bad idea.
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Uncountable, // We exited for none of the above reasons, and we should not count it. Most uses of this should be viewed as a FIXME.
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UncountableInvalidation, // We exited because the code block was invalidated; this means that we've already counted the reasons why the code block was invalidated.
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WatchdogTimerFired, // We exited because we need to service the watchdog timer.
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DebuggerEvent, // We exited because we need to service the debugger.
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ExceptionCheck, // We exited because a direct exception check showed that we threw an exception from a C call.
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GenericUnwind, // We exited because we arrived at this OSR exit from genericUnwind.
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BigInt32Overflow, // We exited because of an BigInt32 overflow.
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};
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const char* exitKindToString(ExitKind);
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bool exitKindMayJettison(ExitKind);
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} // namespace JSC
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namespace WTF {
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class PrintStream;
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void printInternal(PrintStream&, JSC::ExitKind);
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} // namespace WTF
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