mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-08 18:01:37 +00:00
84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/*
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* Copyright (C) 2015-2019 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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#include "JSDestructibleObject.h"
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#include "StackFrame.h"
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#include <wtf/Vector.h>
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namespace JSC {
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class Exception final : public JSCell {
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public:
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using Base = JSCell;
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static constexpr unsigned StructureFlags = Base::StructureFlags | StructureIsImmortal;
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static constexpr bool needsDestruction = true;
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template<typename CellType, SubspaceAccess mode>
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static IsoSubspace* subspaceFor(VM& vm)
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{
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return &vm.exceptionSpace;
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}
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enum StackCaptureAction {
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CaptureStack,
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DoNotCaptureStack
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};
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JS_EXPORT_PRIVATE static Exception* create(VM&, JSValue thrownValue, StackCaptureAction = CaptureStack);
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static Structure* createStructure(VM&, JSGlobalObject*, JSValue prototype);
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static void visitChildren(JSCell*, SlotVisitor&);
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DECLARE_EXPORT_INFO;
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static ptrdiff_t valueOffset()
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{
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return OBJECT_OFFSETOF(Exception, m_value);
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}
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JSValue value() const { return m_value.get(); }
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const Vector<StackFrame>& stack() const { return m_stack; }
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bool didNotifyInspectorOfThrow() const { return m_didNotifyInspectorOfThrow; }
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void setDidNotifyInspectorOfThrow() { m_didNotifyInspectorOfThrow = true; }
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~Exception();
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private:
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Exception(VM&);
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void finishCreation(VM&, JSValue thrownValue, StackCaptureAction);
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static void destroy(JSCell*);
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WriteBarrier<Unknown> m_value;
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Vector<StackFrame> m_stack;
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bool m_didNotifyInspectorOfThrow { false };
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friend class LLIntOffsetsExtractor;
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};
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} // namespace JSC
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