TerminatedCodeOrigin.h   [plain text]

/*
 * 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

#include "CodeOrigin.h"

namespace JSC {

struct InlineCallFrame;

struct TerminatedCodeOrigin {
    TerminatedCodeOrigin() { }
    
    TerminatedCodeOrigin(const CodeOrigin& codeOrigin, InlineCallFrame* terminal)
        : codeOrigin(codeOrigin)
        , terminal(terminal)
    {
    }
    
    CodeOrigin codeOrigin;
    InlineCallFrame* terminal { nullptr };
};

struct TerminatedCodeOriginHashTranslator {
    static unsigned hash(const TerminatedCodeOrigin& value)
    {
        return value.codeOrigin.approximateHash(value.terminal);
    }
    
    static bool equal(const CodeOrigin& a, const TerminatedCodeOrigin& b)
    {
        return b.codeOrigin.isApproximatelyEqualTo(a, b.terminal);
    }
};

} // namespace JSC