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/*
* Copyright (C) 2012, 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 "ProfilerOriginStack.h"
#include "CodeOrigin.h"
#include "InlineCallFrame.h"
#include "JSCInlines.h"
#include "ProfilerDatabase.h"
namespace JSC { namespace Profiler {
OriginStack::OriginStack(WTF::HashTableDeletedValueType)
{
m_stack.append(Origin(WTF::HashTableDeletedValue));
}
OriginStack::OriginStack(const Origin& origin)
{
m_stack.append(origin);
}
OriginStack::OriginStack(Database& database, CodeBlock* codeBlock, const CodeOrigin& codeOrigin)
{
Vector<CodeOrigin> stack = codeOrigin.inlineStack();
append(Origin(database, codeBlock, stack[0].bytecodeIndex()));
for (unsigned i = 1; i < stack.size(); ++i) {
append(Origin(
database.ensureBytecodesFor(stack[i].inlineCallFrame()->baselineCodeBlock.get()),
stack[i].bytecodeIndex()));
}
}
OriginStack::~OriginStack() { }
void OriginStack::append(const Origin& origin)
{
m_stack.append(origin);
}
bool OriginStack::operator==(const OriginStack& other) const
{
if (m_stack.size() != other.m_stack.size())
return false;
for (unsigned i = m_stack.size(); i--;) {
if (m_stack[i] != other.m_stack[i])
return false;
}
return true;
}
unsigned OriginStack::hash() const
{
unsigned result = m_stack.size();
for (unsigned i = m_stack.size(); i--;) {
result *= 3;
result += m_stack[i].hash();
}
return result;
}
void OriginStack::dump(PrintStream& out) const
{
for (unsigned i = 0; i < m_stack.size(); ++i) {
if (i)
out.print(" --> ");
out.print(m_stack[i]);
}
}
JSValue OriginStack::toJS(JSGlobalObject* globalObject) const
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSArray* result = constructEmptyArray(globalObject, nullptr);
RETURN_IF_EXCEPTION(scope, { });
for (unsigned i = 0; i < m_stack.size(); ++i) {
result->putDirectIndex(globalObject, i, m_stack[i].toJS(globalObject));
RETURN_IF_EXCEPTION(scope, { });
}
return result;
}
} } // namespace JSC::Profiler