mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
/*
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* Copyright (C) 2016-2017 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 "Heap.h"
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#include "VM.h"
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#include "WasmIndexOrName.h"
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#include "WriteBarrier.h"
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#include <limits.h>
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namespace JSC {
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class CodeBlock;
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class JSObject;
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class SlotVisitor;
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class StackFrame {
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public:
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StackFrame(VM&, JSCell* owner, JSCell* callee);
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StackFrame(VM&, JSCell* owner, JSCell* callee, CodeBlock*, BytecodeIndex);
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StackFrame(Wasm::IndexOrName);
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bool hasLineAndColumnInfo() const { return !!m_codeBlock; }
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void computeLineAndColumn(unsigned& line, unsigned& column) const;
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String functionName(VM&) const;
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intptr_t sourceID() const;
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String sourceURL() const;
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String toString(VM&) const;
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bool hasBytecodeIndex() const { return m_bytecodeIndex && !m_isWasmFrame; }
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BytecodeIndex bytecodeIndex()
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{
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ASSERT(hasBytecodeIndex());
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return m_bytecodeIndex;
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}
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void visitChildren(SlotVisitor&);
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bool isMarked(VM& vm) const { return (!m_callee || vm.heap.isMarked(m_callee.get())) && (!m_codeBlock || vm.heap.isMarked(m_codeBlock.get())); }
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private:
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WriteBarrier<JSCell> m_callee { };
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WriteBarrier<CodeBlock> m_codeBlock { };
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Wasm::IndexOrName m_wasmFunctionIndexOrName;
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BytecodeIndex m_bytecodeIndex;
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bool m_isWasmFrame { false };
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};
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} // namespace JSC
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