asar coverage - build #316

src/asar/
File: src/asar/frozen/string.h
Date: 2025-09-21 01:00:53
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1 /*
2 * Frozen
3 * Copyright 2016 QuarksLab
4 *
5 * Licensed to the Apache Software Foundation (ASF) under one
6 * or more contributor license agreements. See the NOTICE file
7 * distributed with this work for additional information
8 * regarding copyright ownership. The ASF licenses this file
9 * to you under the Apache License, Version 2.0 (the
10 * "License"); you may not use this file except in compliance
11 * with the License. You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing,
16 * software distributed under the License is distributed on an
17 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
18 * KIND, either express or implied. See the License for the
19 * specific language governing permissions and limitations
20 * under the License.
21 */
22
23 #ifndef FROZEN_LETITGO_STRING_H
24 #define FROZEN_LETITGO_STRING_H
25
26 #include "frozen/bits/elsa.h"
27 #include "frozen/bits/hash_string.h"
28 #include "frozen/bits/version.h"
29 #include "frozen/bits/defines.h"
30
31 #include <cstddef>
32 #include <functional>
33
34 #ifdef FROZEN_LETITGO_HAS_STRING_VIEW
35 #include <string_view>
36 #endif
37
38 namespace frozen {
39
40 template <typename _CharT>
41 class basic_string {
42 using chr_t = _CharT;
43
44 chr_t const *data_;
45 std::size_t size_;
46
47 public:
48 template <std::size_t N>
49 constexpr basic_string(chr_t const (&data)[N])
50 : data_(data), size_(N - 1) {}
51 87987 constexpr basic_string(chr_t const *data, std::size_t size)
52 87987 : data_(data), size_(size) {}
53
54 #ifdef FROZEN_LETITGO_HAS_STRING_VIEW
55 constexpr basic_string(std::basic_string_view<chr_t> data)
56 : data_(data.data()), size_(data.size()) {}
57
58 explicit constexpr operator std::basic_string_view<chr_t>() const {
59 return std::basic_string_view<chr_t>(data_, size_);
60 }
61 #endif
62
63 constexpr basic_string(const basic_string &) noexcept = default;
64 constexpr basic_string &operator=(const basic_string &) noexcept = default;
65
66 constexpr std::size_t length() const { return size_; }
67 97769 constexpr std::size_t size() const { return size_; }
68
69 constexpr chr_t operator[](std::size_t i) const { return data_[i]; }
70
71 42267 constexpr bool operator==(basic_string other) const {
72
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 42267 if (size_ != other.size_)
73 10525 return false;
74
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 183173 for (std::size_t i = 0; i < size_; ++i)
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 152136 if (data_[i] != other.data_[i])
76 705 return false;
77 31037 return true;
78 }
79
80 constexpr bool operator<(const basic_string &other) const {
81 unsigned i = 0;
82 while (i < size() && i < other.size()) {
83 if ((*this)[i] < other[i]) {
84 return true;
85 }
86 if ((*this)[i] > other[i]) {
87 return false;
88 }
89 ++i;
90 }
91 return size() < other.size();
92 }
93
94 friend constexpr bool operator>(const basic_string& lhs, const basic_string& rhs) {
95 return rhs < lhs;
96 }
97 friend constexpr bool operator>=(const basic_string& lhs, const basic_string& rhs) {
98 return !(lhs < rhs);
99 }
100 friend constexpr bool operator<=(const basic_string& lhs, const basic_string& rhs) {
101 return !(lhs > rhs);
102 }
103
104 195538 constexpr const chr_t *data() const { return data_; }
105 97769 constexpr const chr_t *begin() const { return data(); }
106 97769 constexpr const chr_t *end() const { return data() + size(); }
107 };
108
109 template <typename _CharT> struct elsa<basic_string<_CharT>> {
110 constexpr std::size_t operator()(basic_string<_CharT> value) const {
111 return hash_string(value);
112 }
113 97769 constexpr std::size_t operator()(basic_string<_CharT> value, std::size_t seed) const {
114 97769 return hash_string(value, seed);
115 }
116 };
117
118 using string = basic_string<char>;
119 using wstring = basic_string<wchar_t>;
120 using u16string = basic_string<char16_t>;
121 using u32string = basic_string<char32_t>;
122
123 #ifdef FROZEN_LETITGO_HAS_CHAR8T
124 using u8string = basic_string<char8_t>;
125 #endif
126
127 namespace string_literals {
128
129 constexpr string operator""_s(const char *data, std::size_t size) {
130 return {data, size};
131 }
132
133 constexpr wstring operator""_s(const wchar_t *data, std::size_t size) {
134 return {data, size};
135 }
136
137 constexpr u16string operator""_s(const char16_t *data, std::size_t size) {
138 return {data, size};
139 }
140
141 constexpr u32string operator""_s(const char32_t *data, std::size_t size) {
142 return {data, size};
143 }
144
145 #ifdef FROZEN_LETITGO_HAS_CHAR8T
146 constexpr u8string operator""_s(const char8_t *data, std::size_t size) {
147 return {data, size};
148 }
149 #endif
150
151 } // namespace string_literals
152
153 } // namespace frozen
154
155 namespace std {
156 template <typename _CharT> struct hash<frozen::basic_string<_CharT>> {
157 std::size_t operator()(frozen::basic_string<_CharT> s) const {
158 return frozen::elsa<frozen::basic_string<_CharT>>{}(s);
159 }
160 };
161 } // namespace std
162
163 #endif
164