v8
8.6.395 (node 15.0.1)
V8 is Google's open source JavaScript engine
source-location.h
Go to the documentation of this file.
1
// Copyright 2020 the V8 project authors. All rights reserved.
2
// Use of this source code is governed by a BSD-style license that can be
3
// found in the LICENSE file.
4
5
#
ifndef
INCLUDE_CPPGC_SOURCE_LOCATION_H_
6
#
define
INCLUDE_CPPGC_SOURCE_LOCATION_H_
7
8
#
include
<
string
>
9
10
#
include
"v8config.h"
// NOLINT(build/include_directory)
11
12
#
if
defined
(
__has_builtin
)
13
#
define
CPPGC_SUPPORTS_SOURCE_LOCATION
14
(
__has_builtin
(
__builtin_FUNCTION
)
&&
__has_builtin
(
__builtin_FILE
)
&&
15
__has_builtin
(
__builtin_LINE
)
)
// NOLINT
16
#
elif
defined
(
V8_CC_GNU
)
&&
__GNUC__
>=
7
17
#
define
CPPGC_SUPPORTS_SOURCE_LOCATION
1
18
#
elif
defined
(
V8_CC_INTEL
)
&&
__ICC
>=
1800
19
#
define
CPPGC_SUPPORTS_SOURCE_LOCATION
1
20
#
else
21
#
define
CPPGC_SUPPORTS_SOURCE_LOCATION
0
22
#
endif
23
24
namespace
cppgc
{
25
26
/**
27
* Encapsulates source location information. Mimics C++20's
28
* std::source_location.
29
*/
30
class
V8_EXPORT
SourceLocation
final
{
31
public
:
32
/**
33
* Construct source location information corresponding to the location of the
34
* call site.
35
*/
36
#
if
CPPGC_SUPPORTS_SOURCE_LOCATION
37
static
constexpr
SourceLocation
Current(
38
const
char
* function =
__builtin_FUNCTION
(),
39
const
char
* file =
__builtin_FILE
(), size_t line =
__builtin_LINE
()) {
40
return
SourceLocation
(function, file, line);
41
}
42
#
else
43
static
constexpr
SourceLocation
Current
() {
return
SourceLocation
(); }
44
#
endif
// CPPGC_SUPPORTS_SOURCE_LOCATION
45
46
/**
47
* Constructs unspecified source location information.
48
*/
49
constexpr
SourceLocation
() =
default
;
50
51
/**
52
* Returns the name of the function associated with the position represented
53
* by this object, if any.
54
*
55
* \returns the function name as cstring.
56
*/
57
constexpr
const
char
*
Function
()
const
{
return
function_; }
58
59
/**
60
* Returns the name of the current source file represented by this object.
61
*
62
* \returns the file name as cstring.
63
*/
64
constexpr
const
char
*
FileName
()
const
{
return
file_; }
65
66
/**
67
* Returns the line number represented by this object.
68
*
69
* \returns the line number.
70
*/
71
constexpr
size_t
Line
()
const
{
return
line_; }
72
73
/**
74
* Returns a human-readable string representing this object.
75
*
76
* \returns a human-readable string representing source location information.
77
*/
78
std::string
ToString
()
const
;
79
80
private
:
81
constexpr
SourceLocation(
const
char
* function,
const
char
* file, size_t line)
82
: function_(function), file_(file), line_(line) {}
83
84
const
char
* function_ =
nullptr
;
85
const
char
* file_ =
nullptr
;
86
size_t line_ = 0u;
87
};
88
89
}
// namespace cppgc
90
91
#
endif
// INCLUDE_CPPGC_SOURCE_LOCATION_H_
include
cppgc
source-location.h
Generated on Fri Oct 29 2021 20:08:08 for v8 by
1.9.1