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/*
* Copyright (C) 2016-2024 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.
*/
#pragma once
#include "BytecodeIndex.h"
#include "Heap.h"
#include "LineColumn.h"
#include "SlotVisitorMacros.h"
#include "VM.h"
#include "WasmIndexOrName.h"
#include "WriteBarrier.h"
#include <limits.h>
namespace JSC {
class CodeBlock;
class JSObject;
class StackFrame {
public:
StackFrame(VM&, JSCell* owner, JSCell* callee);
StackFrame(VM&, JSCell* owner, JSCell* callee, CodeBlock*, BytecodeIndex);
StackFrame(VM&, JSCell* owner, CodeBlock*, BytecodeIndex);
StackFrame(Wasm::IndexOrName);
StackFrame() = default;
bool hasLineAndColumnInfo() const { return !!m_codeBlock; }
CodeBlock* codeBlock() const { return m_codeBlock.get(); }
LineColumn computeLineAndColumn() const;
String functionName(VM&) const;
SourceID sourceID() const;
String sourceURL(VM&) const;
String sourceURLStripped(VM&) const;
String toString(VM&) const;
bool hasBytecodeIndex() const { return m_bytecodeIndex && !m_isWasmFrame; }
BytecodeIndex bytecodeIndex()
{
ASSERT(hasBytecodeIndex());
return m_bytecodeIndex;
}
template<typename Visitor>
void visitAggregate(Visitor& visitor)
{
if (m_callee)
visitor.append(m_callee);
if (m_codeBlock)
visitor.append(m_codeBlock);
}
bool isMarked(VM& vm) const { return (!m_callee || vm.heap.isMarked(m_callee.get())) && (!m_codeBlock || vm.heap.isMarked(m_codeBlock.get())); }
private:
WriteBarrier<JSCell> m_callee { };
WriteBarrier<CodeBlock> m_codeBlock { };
Wasm::IndexOrName m_wasmFunctionIndexOrName;
BytecodeIndex m_bytecodeIndex;
bool m_isWasmFrame { false };
};
} // namespace JSC
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