1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/*
* Copyright (C) 2012-2019 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 "BytecodeIndex.h"
#include "CodeBlockHash.h"
#include "JSCJSValue.h"
#include <wtf/PrintStream.h>
namespace JSC {
class CodeBlock;
namespace Profiler {
class Bytecodes;
class Database;
class Dumper;
class Origin {
public:
Origin() = default;
Origin(WTF::HashTableDeletedValueType)
: m_bytecodeIndex(WTF::HashTableDeletedValue)
{ }
Origin(Bytecodes* bytecodes, BytecodeIndex bytecodeIndex)
: m_bytecodes(bytecodes)
, m_bytecodeIndex(bytecodeIndex)
{
ASSERT(m_bytecodeIndex.offset() < std::numeric_limits<unsigned>::max() - 1);
}
Origin(Database&, CodeBlock*, BytecodeIndex);
bool operator!() const { return !m_bytecodeIndex; }
Bytecodes* bytecodes() const { return m_bytecodes; }
BytecodeIndex bytecodeIndex() const { return m_bytecodeIndex; }
friend bool operator==(const Origin&, const Origin&) = default;
unsigned hash() const;
bool isHashTableDeletedValue() const;
void dump(PrintStream&) const;
Ref<JSON::Value> toJSON(Dumper&) const;
private:
Bytecodes* m_bytecodes;
BytecodeIndex m_bytecodeIndex;
};
inline unsigned Origin::hash() const
{
return WTF::PtrHash<Bytecodes*>::hash(m_bytecodes) + m_bytecodeIndex.hash();
}
inline bool Origin::isHashTableDeletedValue() const
{
return m_bytecodeIndex.isHashTableDeletedValue();
}
struct OriginHash {
static unsigned hash(const Origin& key) { return key.hash(); }
static bool equal(const Origin& a, const Origin& b) { return a == b; }
static constexpr bool safeToCompareToEmptyOrDeleted = true;
};
} } // namespace JSC::Profiler
namespace WTF {
template<typename T> struct DefaultHash;
template<> struct DefaultHash<JSC::Profiler::Origin> : JSC::Profiler::OriginHash { };
template<typename T> struct HashTraits;
template<> struct HashTraits<JSC::Profiler::Origin> : SimpleClassHashTraits<JSC::Profiler::Origin> { };
} // namespace WTF
|
