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/*
* 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.
*/
#include "config.h"
#include "StackFrame.h"
#include "CodeBlock.h"
#include "DebuggerPrimitives.h"
#include "JSCInlines.h"
#include <wtf/text/StringBuilder.h>
namespace JSC {
intptr_t StackFrame::sourceID() const
{
if (!m_codeBlock)
return noSourceID;
return m_codeBlock->ownerScriptExecutable()->sourceID();
}
String StackFrame::sourceURL() const
{
if (!m_codeBlock) {
if (m_callee && m_callee->isAnyWasmCallee(*m_callee->vm()))
return ASCIILiteral("[wasm code]");
return ASCIILiteral("[native code]");
}
String sourceURL = m_codeBlock->ownerScriptExecutable()->sourceURL();
if (!sourceURL.isNull())
return sourceURL;
return emptyString();
}
String StackFrame::functionName(VM& vm) const
{
if (m_codeBlock) {
switch (m_codeBlock->codeType()) {
case EvalCode:
return ASCIILiteral("eval code");
case ModuleCode:
return ASCIILiteral("module code");
case FunctionCode:
break;
case GlobalCode:
return ASCIILiteral("global code");
default:
ASSERT_NOT_REACHED();
}
}
String name;
if (m_callee) {
if (m_callee->isObject())
name = getCalculatedDisplayName(vm, jsCast<JSObject*>(m_callee.get())).impl();
else if (m_callee->isAnyWasmCallee(*m_callee->vm()))
return ASCIILiteral("<wasm>");
}
return name.isNull() ? emptyString() : name;
}
void StackFrame::computeLineAndColumn(unsigned& line, unsigned& column) const
{
if (!m_codeBlock) {
line = 0;
column = 0;
return;
}
int divot = 0;
int unusedStartOffset = 0;
int unusedEndOffset = 0;
m_codeBlock->expressionRangeForBytecodeOffset(m_bytecodeOffset, divot, unusedStartOffset, unusedEndOffset, line, column);
ScriptExecutable* executable = m_codeBlock->ownerScriptExecutable();
if (executable->hasOverrideLineNumber())
line = executable->overrideLineNumber();
}
String StackFrame::toString(VM& vm) const
{
StringBuilder traceBuild;
String functionName = this->functionName(vm);
String sourceURL = this->sourceURL();
traceBuild.append(functionName);
if (!sourceURL.isEmpty()) {
if (!functionName.isEmpty())
traceBuild.append('@');
traceBuild.append(sourceURL);
if (hasLineAndColumnInfo()) {
unsigned line;
unsigned column;
computeLineAndColumn(line, column);
traceBuild.append(':');
traceBuild.appendNumber(line);
traceBuild.append(':');
traceBuild.appendNumber(column);
}
}
return traceBuild.toString().impl();
}
} // namespace JSC
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