mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-17 22:40:01 +00:00
83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
/*
|
|
* Copyright (C) 2018 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
|
|
|
|
#if ENABLE(JIT)
|
|
|
|
#include "CodeLocation.h"
|
|
#include <wtf/StdLibExtras.h>
|
|
#include <wtf/Vector.h>
|
|
|
|
namespace JSC {
|
|
|
|
class JITCodeMap {
|
|
private:
|
|
struct Entry {
|
|
Entry() { }
|
|
|
|
Entry(unsigned bytecodeIndex, CodeLocationLabel<JSEntryPtrTag> codeLocation)
|
|
: m_bytecodeIndex(bytecodeIndex)
|
|
, m_codeLocation(codeLocation)
|
|
{ }
|
|
|
|
inline unsigned bytecodeIndex() const { return m_bytecodeIndex; }
|
|
inline CodeLocationLabel<JSEntryPtrTag> codeLocation() { return m_codeLocation; }
|
|
|
|
private:
|
|
unsigned m_bytecodeIndex;
|
|
CodeLocationLabel<JSEntryPtrTag> m_codeLocation;
|
|
};
|
|
|
|
public:
|
|
void append(unsigned bytecodeIndex, CodeLocationLabel<JSEntryPtrTag> codeLocation)
|
|
{
|
|
m_entries.append({ bytecodeIndex, codeLocation });
|
|
}
|
|
|
|
void finish() { m_entries.shrinkToFit(); }
|
|
|
|
CodeLocationLabel<JSEntryPtrTag> find(unsigned bytecodeIndex) const
|
|
{
|
|
auto* entry =
|
|
binarySearch<Entry, unsigned>(m_entries,
|
|
m_entries.size(), bytecodeIndex, [] (Entry* entry) {
|
|
return entry->bytecodeIndex();
|
|
});
|
|
if (!entry)
|
|
return CodeLocationLabel<JSEntryPtrTag>();
|
|
return entry->codeLocation();
|
|
}
|
|
|
|
explicit operator bool() const { return m_entries.size(); }
|
|
|
|
private:
|
|
Vector<Entry> m_entries;
|
|
};
|
|
|
|
} // namespace JSC
|
|
|
|
#endif // ENABLE(JIT)
|