WebKit/Source/JavaScriptCore/profiler/ProfilerOriginStack.cpp at main · WebKit/WebKit · GitHub

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* 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

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#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() = default;

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]);

}

Ref<JSON::Value> OriginStack::toJSON(Dumper& dumper) const

{

auto result = JSON::Array::create();

for (unsigned i = 0; i < m_stack.size(); ++i)

result->pushValue(m_stack[i].toJSON(dumper));

return result;

}

} } // namespace JSC::Profiler

WebKit/Source/JavaScriptCore/profiler/ProfilerOriginStack.cpp at main · WebKit/WebKit · GitHub

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