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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/*
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2013 Apple Inc. All rights
* reserved.
* Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif
#include "third_party/blink/renderer/platform/wtf/text/atomic_string.h"
#include "base/numerics/safe_conversions.h"
#include "third_party/blink/renderer/platform/wtf/dtoa.h"
#include "third_party/blink/renderer/platform/wtf/size_assertions.h"
#include "third_party/blink/renderer/platform/wtf/text/atomic_string_table.h"
#include "third_party/blink/renderer/platform/wtf/text/case_map.h"
#include "third_party/blink/renderer/platform/wtf/text/string_impl.h"
#include "third_party/perfetto/include/perfetto/tracing/traced_value.h"
namespace WTF {
ASSERT_SIZE(AtomicString, String);
AtomicString::AtomicString(base::span<const LChar> chars)
: string_(AtomicStringTable::Instance().Add(
chars.data(),
base::checked_cast<wtf_size_t>(chars.size()))) {}
AtomicString::AtomicString(base::span<const UChar> chars,
AtomicStringUCharEncoding encoding)
: string_(AtomicStringTable::Instance().Add(
chars.data(),
base::checked_cast<wtf_size_t>(chars.size()),
encoding)) {}
AtomicString::AtomicString(const UChar* chars)
: string_(AtomicStringTable::Instance().Add(
chars,
chars ? LengthOfNullTerminatedString(chars) : 0,
AtomicStringUCharEncoding::kUnknown)) {}
AtomicString::AtomicString(const StringView& string_view)
: string_(AtomicStringTable::Instance().Add(string_view)) {}
scoped_refptr<StringImpl> AtomicString::AddSlowCase(
scoped_refptr<StringImpl>&& string) {
DCHECK(!string->IsAtomic());
return AtomicStringTable::Instance().Add(std::move(string));
}
scoped_refptr<StringImpl> AtomicString::AddSlowCase(StringImpl* string) {
DCHECK(!string->IsAtomic());
return AtomicStringTable::Instance().Add(string);
}
AtomicString AtomicString::FromUTF8(base::span<const uint8_t> bytes) {
if (!bytes.data()) {
return g_null_atom;
}
if (bytes.empty()) {
return g_empty_atom;
}
return AtomicString(AtomicStringTable::Instance().AddUTF8(
bytes.data(), bytes.data() + bytes.size()));
}
AtomicString AtomicString::FromUTF8(const char* chars) {
if (!chars)
return g_null_atom;
if (!*chars)
return g_empty_atom;
return AtomicString(AtomicStringTable::Instance().AddUTF8(
reinterpret_cast<const uint8_t*>(chars), nullptr));
}
AtomicString AtomicString::FromUTF8(std::string_view utf8_string) {
return FromUTF8(base::as_byte_span(utf8_string));
}
AtomicString AtomicString::LowerASCII(AtomicString source) {
if (source.IsLowerASCII()) [[likely]] {
return source;
}
StringImpl* impl = source.Impl();
// if impl is null, then IsLowerASCII() should have returned true.
DCHECK(impl);
scoped_refptr<StringImpl> new_impl = impl->LowerASCII();
return AtomicString(String(std::move(new_impl)));
}
AtomicString AtomicString::LowerASCII() const {
return AtomicString::LowerASCII(*this);
}
AtomicString AtomicString::UpperASCII() const {
StringImpl* impl = Impl();
if (!impl) [[unlikely]] {
return *this;
}
return AtomicString(impl->UpperASCII());
}
AtomicString AtomicString::Number(double number, unsigned precision) {
NumberToStringBuffer buffer;
return AtomicString(NumberToFixedPrecisionString(number, precision, buffer));
}
std::ostream& operator<<(std::ostream& out, const AtomicString& s) {
return out << s.GetString();
}
void AtomicString::WriteIntoTrace(perfetto::TracedValue context) const {
perfetto::WriteIntoTracedValue(std::move(context), GetString());
}
#ifndef NDEBUG
void AtomicString::Show() const {
string_.Show();
}
#endif
} // namespace WTF
|
