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
|
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SRC_UTIL_H_
#define SRC_UTIL_H_
#include "v8.h"
#include <assert.h>
#include <stddef.h>
#include <stdlib.h>
namespace node {
#define OFFSET_OF(TypeName, Field) \
(reinterpret_cast<uintptr_t>(&(reinterpret_cast<TypeName*>(8)->Field)) - 8)
#define CONTAINER_OF(Pointer, TypeName, Field) \
reinterpret_cast<TypeName*>( \
reinterpret_cast<uintptr_t>(Pointer) - OFFSET_OF(TypeName, Field))
#define FIXED_ONE_BYTE_STRING(isolate, string) \
(node::OneByteString((isolate), (string), sizeof(string) - 1))
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
void operator=(const TypeName&); \
TypeName(const TypeName&)
#if defined(NDEBUG)
#define ASSERT(expression)
#define CHECK(expression) \
do { \
if (!(expression)) abort(); \
} while (0)
#else
#define ASSERT(expression) assert(expression)
#define CHECK(expression) assert(expression)
#endif
#define UNREACHABLE() abort()
// If persistent.IsWeak() == false, then do not call persistent.Dispose()
// while the returned Local<T> is still in scope, it will destroy the
// reference to the object.
template <class TypeName>
inline v8::Local<TypeName> PersistentToLocal(
v8::Isolate* isolate,
const v8::Persistent<TypeName>& persistent);
// Unchecked conversion from a non-weak Persistent<T> to Local<TLocal<T>,
// use with care!
//
// Do not call persistent.Dispose() while the returned Local<T> is still in
// scope, it will destroy the reference to the object.
template <class TypeName>
inline v8::Local<TypeName> StrongPersistentToLocal(
const v8::Persistent<TypeName>& persistent);
template <class TypeName>
inline v8::Local<TypeName> WeakPersistentToLocal(
v8::Isolate* isolate,
const v8::Persistent<TypeName>& persistent);
// Convenience wrapper around v8::String::NewFromOneByte().
inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
const char* data,
int length = -1);
// For the people that compile with -funsigned-char.
inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
const signed char* data,
int length = -1);
inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
const unsigned char* data,
int length = -1);
inline void Wrap(v8::Local<v8::Object> object, void* pointer);
template <typename TypeName>
inline TypeName* Unwrap(v8::Local<v8::Object> object);
} // namespace node
#endif // SRC_UTIL_H_
|
