1/*
2 * Copyright (C) 2014, 2015 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#if ENABLE(FTL_JIT)
29
30#include "DFGPromotedHeapLocation.h"
31#include "FTLExitValue.h"
32
33namespace JSC {
34
35class TrackedReferences;
36
37namespace FTL {
38
39class ExitPropertyValue {
40public:
41 ExitPropertyValue()
42 {
43 }
44
45 ExitPropertyValue(DFG::PromotedLocationDescriptor location, const ExitValue& value)
46 : m_location(location)
47 , m_value(value)
48 {
49 ASSERT(!!location == !!value);
50 }
51
52 bool operator!() const { return !m_location; }
53
54 DFG::PromotedLocationDescriptor location() const { return m_location; }
55 const ExitValue& value() const { return m_value; }
56
57 ExitPropertyValue withLocalsOffset(int offset) const;
58
59 void dump(PrintStream& out) const;
60
61 void validateReferences(const TrackedReferences&) const;
62
63private:
64 DFG::PromotedLocationDescriptor m_location;
65 ExitValue m_value;
66};
67
68} } // namespace JSC::FTL
69
70#endif // ENABLE(FTL_JIT)
71