1/*
2 * Copyright (C) 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(B3_JIT)
29
30#include "B3ValueRep.h"
31
32namespace JSC { namespace B3 {
33
34class Value;
35
36class ConstrainedValue {
37public:
38 ConstrainedValue()
39 {
40 }
41
42 ConstrainedValue(Value* value)
43 : m_value(value)
44 , m_rep(ValueRep::WarmAny)
45 {
46 }
47
48 ConstrainedValue(Value* value, const ValueRep& rep)
49 : m_value(value)
50 , m_rep(rep)
51 {
52 }
53
54 explicit operator bool() const { return m_value || m_rep; }
55
56 Value* value() const { return m_value; }
57 const ValueRep& rep() const { return m_rep; }
58
59 void dump(PrintStream& out) const;
60
61private:
62 Value* m_value;
63 ValueRep m_rep;
64};
65
66} } // namespace JSC::B3
67
68#endif // ENABLE(B3_JIT)
69