Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef AAPT_STRING_PIECE_H |
| 18 | #define AAPT_STRING_PIECE_H |
| 19 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 20 | #include <ostream> |
| 21 | #include <string> |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 22 | |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 23 | #include "utils/JenkinsHash.h" |
| 24 | #include "utils/String8.h" |
| 25 | #include "utils/Unicode.h" |
| 26 | |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 27 | namespace aapt { |
| 28 | |
| 29 | /** |
| 30 | * Read only wrapper around basic C strings. |
| 31 | * Prevents excessive copying. |
| 32 | * |
| 33 | * WARNING: When creating from std::basic_string<>, moving the original |
| 34 | * std::basic_string<> will invalidate the data held in a BasicStringPiece<>. |
| 35 | * BasicStringPiece<> should only be used transitively. |
| 36 | */ |
| 37 | template <typename TChar> |
| 38 | class BasicStringPiece { |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 39 | public: |
| 40 | using const_iterator = const TChar*; |
| 41 | using difference_type = size_t; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 42 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 43 | // End of string marker. |
| 44 | constexpr static const size_t npos = static_cast<size_t>(-1); |
Adam Lesinski | 21efb68 | 2016-09-14 17:35:43 -0700 | [diff] [blame] | 45 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 46 | BasicStringPiece(); |
| 47 | BasicStringPiece(const BasicStringPiece<TChar>& str); |
| 48 | BasicStringPiece(const std::basic_string<TChar>& str); // NOLINT(implicit) |
| 49 | BasicStringPiece(const TChar* str); // NOLINT(implicit) |
| 50 | BasicStringPiece(const TChar* str, size_t len); |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 51 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 52 | BasicStringPiece<TChar>& operator=(const BasicStringPiece<TChar>& rhs); |
| 53 | BasicStringPiece<TChar>& assign(const TChar* str, size_t len); |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 54 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 55 | BasicStringPiece<TChar> substr(size_t start, size_t len = npos) const; |
| 56 | BasicStringPiece<TChar> substr( |
| 57 | BasicStringPiece<TChar>::const_iterator begin, |
| 58 | BasicStringPiece<TChar>::const_iterator end) const; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 59 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 60 | const TChar* data() const; |
| 61 | size_t length() const; |
| 62 | size_t size() const; |
| 63 | bool empty() const; |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 64 | std::basic_string<TChar> ToString() const; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 65 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 66 | bool contains(const BasicStringPiece<TChar>& rhs) const; |
| 67 | int compare(const BasicStringPiece<TChar>& rhs) const; |
| 68 | bool operator<(const BasicStringPiece<TChar>& rhs) const; |
| 69 | bool operator>(const BasicStringPiece<TChar>& rhs) const; |
| 70 | bool operator==(const BasicStringPiece<TChar>& rhs) const; |
| 71 | bool operator!=(const BasicStringPiece<TChar>& rhs) const; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 72 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 73 | const_iterator begin() const; |
| 74 | const_iterator end() const; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 75 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 76 | private: |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 77 | const TChar* data_; |
| 78 | size_t length_; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 79 | }; |
| 80 | |
| 81 | using StringPiece = BasicStringPiece<char>; |
| 82 | using StringPiece16 = BasicStringPiece<char16_t>; |
| 83 | |
| 84 | // |
| 85 | // BasicStringPiece implementation. |
| 86 | // |
| 87 | |
| 88 | template <typename TChar> |
Adam Lesinski | 21efb68 | 2016-09-14 17:35:43 -0700 | [diff] [blame] | 89 | constexpr const size_t BasicStringPiece<TChar>::npos; |
| 90 | |
| 91 | template <typename TChar> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 92 | inline BasicStringPiece<TChar>::BasicStringPiece() |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 93 | : data_(nullptr), length_(0) {} |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 94 | |
| 95 | template <typename TChar> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 96 | inline BasicStringPiece<TChar>::BasicStringPiece( |
| 97 | const BasicStringPiece<TChar>& str) |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 98 | : data_(str.data_), length_(str.length_) {} |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 99 | |
| 100 | template <typename TChar> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 101 | inline BasicStringPiece<TChar>::BasicStringPiece( |
| 102 | const std::basic_string<TChar>& str) |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 103 | : data_(str.data()), length_(str.length()) {} |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 104 | |
| 105 | template <> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 106 | inline BasicStringPiece<char>::BasicStringPiece(const char* str) |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 107 | : data_(str), length_(str != nullptr ? strlen(str) : 0) {} |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 108 | |
| 109 | template <> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 110 | inline BasicStringPiece<char16_t>::BasicStringPiece(const char16_t* str) |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 111 | : data_(str), length_(str != nullptr ? strlen16(str) : 0) {} |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 112 | |
| 113 | template <typename TChar> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 114 | inline BasicStringPiece<TChar>::BasicStringPiece(const TChar* str, size_t len) |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 115 | : data_(str), length_(len) {} |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 116 | |
| 117 | template <typename TChar> |
| 118 | inline BasicStringPiece<TChar>& BasicStringPiece<TChar>::operator=( |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 119 | const BasicStringPiece<TChar>& rhs) { |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 120 | data_ = rhs.data_; |
| 121 | length_ = rhs.length_; |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 122 | return *this; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | template <typename TChar> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 126 | inline BasicStringPiece<TChar>& BasicStringPiece<TChar>::assign( |
| 127 | const TChar* str, size_t len) { |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 128 | data_ = str; |
| 129 | length_ = len; |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 130 | return *this; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 131 | } |
| 132 | |
| 133 | template <typename TChar> |
| 134 | inline BasicStringPiece<TChar> BasicStringPiece<TChar>::substr( |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 135 | size_t start, size_t len) const { |
| 136 | if (len == npos) { |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 137 | len = length_ - start; |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 138 | } |
| 139 | |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 140 | if (start > length_ || start + len > length_) { |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 141 | return BasicStringPiece<TChar>(); |
| 142 | } |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 143 | return BasicStringPiece<TChar>(data_ + start, len); |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 144 | } |
| 145 | |
| 146 | template <typename TChar> |
| 147 | inline BasicStringPiece<TChar> BasicStringPiece<TChar>::substr( |
| 148 | BasicStringPiece<TChar>::const_iterator begin, |
| 149 | BasicStringPiece<TChar>::const_iterator end) const { |
| 150 | return BasicStringPiece<TChar>(begin, end - begin); |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | template <typename TChar> |
| 154 | inline const TChar* BasicStringPiece<TChar>::data() const { |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 155 | return data_; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | template <typename TChar> |
| 159 | inline size_t BasicStringPiece<TChar>::length() const { |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 160 | return length_; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 161 | } |
| 162 | |
| 163 | template <typename TChar> |
| 164 | inline size_t BasicStringPiece<TChar>::size() const { |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 165 | return length_; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 166 | } |
| 167 | |
| 168 | template <typename TChar> |
| 169 | inline bool BasicStringPiece<TChar>::empty() const { |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 170 | return length_ == 0; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 171 | } |
| 172 | |
| 173 | template <typename TChar> |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 174 | inline std::basic_string<TChar> BasicStringPiece<TChar>::ToString() const { |
| 175 | return std::basic_string<TChar>(data_, length_); |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 176 | } |
| 177 | |
| 178 | template <> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 179 | inline bool BasicStringPiece<char>::contains( |
| 180 | const BasicStringPiece<char>& rhs) const { |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 181 | if (!data_ || !rhs.data_) { |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 182 | return false; |
| 183 | } |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 184 | if (rhs.length_ > length_) { |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 185 | return false; |
| 186 | } |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 187 | return strstr(data_, rhs.data_) != nullptr; |
Michael Wright | feaf99f | 2016-05-06 17:16:06 +0100 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | template <> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 191 | inline int BasicStringPiece<char>::compare( |
| 192 | const BasicStringPiece<char>& rhs) const { |
| 193 | const char nullStr = '\0'; |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 194 | const char* b1 = data_ != nullptr ? data_ : &nullStr; |
| 195 | const char* e1 = b1 + length_; |
| 196 | const char* b2 = rhs.data_ != nullptr ? rhs.data_ : &nullStr; |
| 197 | const char* e2 = b2 + rhs.length_; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 198 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 199 | while (b1 < e1 && b2 < e2) { |
| 200 | const int d = static_cast<int>(*b1++) - static_cast<int>(*b2++); |
| 201 | if (d) { |
| 202 | return d; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 203 | } |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 204 | } |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 205 | return static_cast<int>(length_ - rhs.length_); |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 206 | } |
| 207 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 208 | inline ::std::ostream& operator<<(::std::ostream& out, |
| 209 | const BasicStringPiece<char16_t>& str) { |
| 210 | android::String8 utf8(str.data(), str.size()); |
| 211 | return out.write(utf8.string(), utf8.size()); |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 212 | } |
| 213 | |
Michael Wright | feaf99f | 2016-05-06 17:16:06 +0100 | [diff] [blame] | 214 | template <> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 215 | inline bool BasicStringPiece<char16_t>::contains( |
| 216 | const BasicStringPiece<char16_t>& rhs) const { |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 217 | if (!data_ || !rhs.data_) { |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 218 | return false; |
| 219 | } |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 220 | if (rhs.length_ > length_) { |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 221 | return false; |
| 222 | } |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 223 | return strstr16(data_, rhs.data_) != nullptr; |
Michael Wright | feaf99f | 2016-05-06 17:16:06 +0100 | [diff] [blame] | 224 | } |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 225 | |
| 226 | template <> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 227 | inline int BasicStringPiece<char16_t>::compare( |
| 228 | const BasicStringPiece<char16_t>& rhs) const { |
| 229 | const char16_t nullStr = u'\0'; |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 230 | const char16_t* b1 = data_ != nullptr ? data_ : &nullStr; |
| 231 | const char16_t* b2 = rhs.data_ != nullptr ? rhs.data_ : &nullStr; |
| 232 | return strzcmp16(b1, length_, b2, rhs.length_); |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | template <typename TChar> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 236 | inline bool BasicStringPiece<TChar>::operator<( |
| 237 | const BasicStringPiece<TChar>& rhs) const { |
| 238 | return compare(rhs) < 0; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 239 | } |
| 240 | |
| 241 | template <typename TChar> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 242 | inline bool BasicStringPiece<TChar>::operator>( |
| 243 | const BasicStringPiece<TChar>& rhs) const { |
| 244 | return compare(rhs) > 0; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 245 | } |
| 246 | |
| 247 | template <typename TChar> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 248 | inline bool BasicStringPiece<TChar>::operator==( |
| 249 | const BasicStringPiece<TChar>& rhs) const { |
| 250 | return compare(rhs) == 0; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 251 | } |
| 252 | |
| 253 | template <typename TChar> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 254 | inline bool BasicStringPiece<TChar>::operator!=( |
| 255 | const BasicStringPiece<TChar>& rhs) const { |
| 256 | return compare(rhs) != 0; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 257 | } |
| 258 | |
| 259 | template <typename TChar> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 260 | inline typename BasicStringPiece<TChar>::const_iterator |
| 261 | BasicStringPiece<TChar>::begin() const { |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 262 | return data_; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 263 | } |
| 264 | |
| 265 | template <typename TChar> |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 266 | inline typename BasicStringPiece<TChar>::const_iterator |
| 267 | BasicStringPiece<TChar>::end() const { |
Adam Lesinski | ce5e56e | 2016-10-21 17:56:45 -0700 | [diff] [blame] | 268 | return data_ + length_; |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 269 | } |
| 270 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 271 | inline ::std::ostream& operator<<(::std::ostream& out, |
| 272 | const BasicStringPiece<char>& str) { |
| 273 | return out.write(str.data(), str.size()); |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 274 | } |
| 275 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 276 | } // namespace aapt |
Adam Lesinski | 6f6ceb7 | 2014-11-14 14:48:12 -0800 | [diff] [blame] | 277 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 278 | inline ::std::ostream& operator<<(::std::ostream& out, |
| 279 | const std::u16string& str) { |
| 280 | android::String8 utf8(str.data(), str.size()); |
| 281 | return out.write(utf8.string(), utf8.size()); |
Adam Lesinski | 9095988 | 2015-07-06 18:09:18 -0700 | [diff] [blame] | 282 | } |
| 283 | |
Adam Lesinski | 32852a5 | 2016-06-15 10:56:41 -0700 | [diff] [blame] | 284 | namespace std { |
| 285 | |
| 286 | template <typename TChar> |
| 287 | struct hash<aapt::BasicStringPiece<TChar>> { |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 288 | size_t operator()(const aapt::BasicStringPiece<TChar>& str) const { |
| 289 | uint32_t hashCode = android::JenkinsHashMixBytes( |
| 290 | 0, reinterpret_cast<const uint8_t*>(str.data()), |
| 291 | sizeof(TChar) * str.size()); |
| 292 | return static_cast<size_t>(hashCode); |
| 293 | } |
Adam Lesinski | 32852a5 | 2016-06-15 10:56:41 -0700 | [diff] [blame] | 294 | }; |
| 295 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 296 | } // namespace std |
Adam Lesinski | 32852a5 | 2016-06-15 10:56:41 -0700 | [diff] [blame] | 297 | |
Adam Lesinski | cacb28f | 2016-10-19 12:18:14 -0700 | [diff] [blame] | 298 | #endif // AAPT_STRING_PIECE_H |