| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2021 Vinnie Falco (vinnie.falco@gmail.com) | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/cppalliance/http_proto | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_HTTP_PROTO_IMPL_FIELDS_VIEW_BASE_HPP | ||
| 11 | #define BOOST_HTTP_PROTO_IMPL_FIELDS_VIEW_BASE_HPP | ||
| 12 | |||
| 13 | #include <boost/core/detail/string_view.hpp> | ||
| 14 | #include <boost/assert.hpp> | ||
| 15 | |||
| 16 | namespace boost { | ||
| 17 | namespace http_proto { | ||
| 18 | |||
| 19 | //------------------------------------------------ | ||
| 20 | // | ||
| 21 | // iterator | ||
| 22 | // | ||
| 23 | //------------------------------------------------ | ||
| 24 | |||
| 25 | class fields_view_base::iterator | ||
| 26 | { | ||
| 27 | detail::header const* ph_ = nullptr; | ||
| 28 | std::size_t i_ = 0; | ||
| 29 | |||
| 30 | friend class fields_base; | ||
| 31 | friend class fields_view_base; | ||
| 32 | |||
| 33 | 1704 | iterator( | |
| 34 | detail::header const* ph, | ||
| 35 | std::size_t i) noexcept | ||
| 36 | 1704 | : ph_(ph) | |
| 37 | 1704 | , i_(i) | |
| 38 | { | ||
| 39 | 1704 | } | |
| 40 | |||
| 41 | public: | ||
| 42 | using value_type = | ||
| 43 | fields_view_base::value_type; | ||
| 44 | using reference = | ||
| 45 | fields_view_base::reference; | ||
| 46 | using pointer = reference; | ||
| 47 | using difference_type = | ||
| 48 | std::ptrdiff_t; | ||
| 49 | using iterator_category = | ||
| 50 | std::bidirectional_iterator_tag; | ||
| 51 | |||
| 52 | 2 | iterator() = default; | |
| 53 | iterator(iterator const&) = default; | ||
| 54 | iterator& operator=( | ||
| 55 | iterator const&) = default; | ||
| 56 | |||
| 57 | bool | ||
| 58 | 1966 | operator==( | |
| 59 | iterator const& other) const noexcept | ||
| 60 | { | ||
| 61 | // If this assert goes off, it means you | ||
| 62 | // are trying to compare iterators from | ||
| 63 | // different containers, which is undefined! | ||
| 64 |
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1966 | BOOST_ASSERT(ph_ == other.ph_); |
| 65 | |||
| 66 | 1966 | return i_ == other.i_; | |
| 67 | } | ||
| 68 | |||
| 69 | bool | ||
| 70 | 1797 | operator!=( | |
| 71 | iterator const& other) const noexcept | ||
| 72 | { | ||
| 73 | 1797 | return !(*this == other); | |
| 74 | } | ||
| 75 | |||
| 76 | BOOST_HTTP_PROTO_DECL | ||
| 77 | reference | ||
| 78 | operator*() const noexcept; | ||
| 79 | |||
| 80 | pointer | ||
| 81 | 1837 | operator->() const noexcept | |
| 82 | { | ||
| 83 | 1837 | return *(*this); | |
| 84 | } | ||
| 85 | |||
| 86 | iterator& | ||
| 87 | 1162 | operator++() noexcept | |
| 88 | { | ||
| 89 |
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1162 | BOOST_ASSERT(i_ < ph_->count); |
| 90 | 1162 | ++i_; | |
| 91 | 1162 | return *this; | |
| 92 | } | ||
| 93 | |||
| 94 | iterator | ||
| 95 | 1 | operator++(int) noexcept | |
| 96 | { | ||
| 97 | 1 | auto temp = *this; | |
| 98 | 1 | ++(*this); | |
| 99 | 1 | return temp; | |
| 100 | } | ||
| 101 | |||
| 102 | iterator& | ||
| 103 | 133 | operator--() noexcept | |
| 104 | { | ||
| 105 |
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133 | BOOST_ASSERT(i_ > 0); |
| 106 | 133 | --i_; | |
| 107 | 133 | return *this; | |
| 108 | } | ||
| 109 | |||
| 110 | iterator | ||
| 111 | 1 | operator--(int) noexcept | |
| 112 | { | ||
| 113 | 1 | auto temp = *this; | |
| 114 | 1 | --(*this); | |
| 115 | 1 | return temp; | |
| 116 | } | ||
| 117 | }; | ||
| 118 | |||
| 119 | //------------------------------------------------ | ||
| 120 | |||
| 121 | class fields_view_base::reverse_iterator | ||
| 122 | { | ||
| 123 | detail::header const* ph_ = nullptr; | ||
| 124 | std::size_t i_ = 0; | ||
| 125 | |||
| 126 | friend class fields_base; | ||
| 127 | friend class fields_view_base; | ||
| 128 | |||
| 129 | reverse_iterator( | ||
| 130 | detail::header const* ph, | ||
| 131 | std::size_t i) noexcept | ||
| 132 | : ph_(ph) | ||
| 133 | , i_(i) | ||
| 134 | { | ||
| 135 | } | ||
| 136 | |||
| 137 | public: | ||
| 138 | using value_type = | ||
| 139 | fields_view_base::value_type; | ||
| 140 | using reference = | ||
| 141 | fields_view_base::reference; | ||
| 142 | using pointer = reference; | ||
| 143 | using difference_type = | ||
| 144 | std::ptrdiff_t; | ||
| 145 | using iterator_category = | ||
| 146 | std::bidirectional_iterator_tag; | ||
| 147 | |||
| 148 | 2 | reverse_iterator() = default; | |
| 149 | reverse_iterator(reverse_iterator const&) = default; | ||
| 150 | reverse_iterator& operator=( | ||
| 151 | reverse_iterator const&) = default; | ||
| 152 | |||
| 153 | explicit | ||
| 154 | 5 | reverse_iterator( | |
| 155 | iterator it) noexcept | ||
| 156 | 5 | : ph_(it.ph_) | |
| 157 | 5 | , i_(it.i_) | |
| 158 | { | ||
| 159 | 5 | } | |
| 160 | |||
| 161 | bool | ||
| 162 | 5 | operator==( | |
| 163 | reverse_iterator const& other) const noexcept | ||
| 164 | { | ||
| 165 | // If this assert goes off, it means you | ||
| 166 | // are trying to compare iterators from | ||
| 167 | // different containers, which is undefined! | ||
| 168 |
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5 | BOOST_ASSERT(ph_ == other.ph_); |
| 169 | |||
| 170 | 5 | return i_ == other.i_; | |
| 171 | } | ||
| 172 | |||
| 173 | bool | ||
| 174 | 1 | operator!=( | |
| 175 | reverse_iterator const& other) const noexcept | ||
| 176 | { | ||
| 177 | 1 | return !(*this == other); | |
| 178 | } | ||
| 179 | |||
| 180 | BOOST_HTTP_PROTO_DECL | ||
| 181 | reference | ||
| 182 | operator*() const noexcept; | ||
| 183 | |||
| 184 | pointer | ||
| 185 | 24 | operator->() const noexcept | |
| 186 | { | ||
| 187 | 24 | return *(*this); | |
| 188 | } | ||
| 189 | |||
| 190 | reverse_iterator& | ||
| 191 | 3 | operator++() noexcept | |
| 192 | { | ||
| 193 |
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3 | BOOST_ASSERT(i_ > 0); |
| 194 | 3 | --i_; | |
| 195 | 3 | return *this; | |
| 196 | } | ||
| 197 | |||
| 198 | reverse_iterator | ||
| 199 | 1 | operator++(int) noexcept | |
| 200 | { | ||
| 201 | 1 | auto temp = *this; | |
| 202 | 1 | ++(*this); | |
| 203 | 1 | return temp; | |
| 204 | } | ||
| 205 | |||
| 206 | reverse_iterator& | ||
| 207 | 3 | operator--() noexcept | |
| 208 | { | ||
| 209 |
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3 | BOOST_ASSERT(i_ < ph_->count); |
| 210 | 3 | ++i_; | |
| 211 | 3 | return *this; | |
| 212 | } | ||
| 213 | |||
| 214 | reverse_iterator | ||
| 215 | 1 | operator--(int) noexcept | |
| 216 | { | ||
| 217 | 1 | auto temp = *this; | |
| 218 | 1 | --(*this); | |
| 219 | 1 | return temp; | |
| 220 | } | ||
| 221 | }; | ||
| 222 | |||
| 223 | //------------------------------------------------ | ||
| 224 | // | ||
| 225 | // subrange | ||
| 226 | // | ||
| 227 | //------------------------------------------------ | ||
| 228 | |||
| 229 | class fields_view_base::subrange | ||
| 230 | { | ||
| 231 | detail::header const* ph_ = nullptr; | ||
| 232 | std::size_t i_ = 0; | ||
| 233 | |||
| 234 | friend class fields_view; | ||
| 235 | friend class fields_view_base; | ||
| 236 | friend struct detail::header; | ||
| 237 | |||
| 238 | 138 | subrange( | |
| 239 | detail::header const* ph, | ||
| 240 | std::size_t i) noexcept | ||
| 241 | 138 | : ph_(ph) | |
| 242 | 138 | , i_(i) | |
| 243 | { | ||
| 244 | 138 | } | |
| 245 | |||
| 246 | public: | ||
| 247 | class iterator; | ||
| 248 | //class reverse_iterator; | ||
| 249 | using const_iterator = iterator; | ||
| 250 | using value_type = std::string; | ||
| 251 | using reference = core::string_view; | ||
| 252 | using const_reference = reference; | ||
| 253 | using size_type = std::size_t; | ||
| 254 | using difference_type = std::ptrdiff_t; | ||
| 255 | |||
| 256 | /** Constructor | ||
| 257 | |||
| 258 | Default-constructed subranges are empty. | ||
| 259 | */ | ||
| 260 | subrange() noexcept = default; | ||
| 261 | |||
| 262 | subrange(subrange const&) noexcept = default; | ||
| 263 | subrange& operator=( | ||
| 264 | subrange const&) noexcept = default; | ||
| 265 | |||
| 266 | iterator begin() const noexcept; | ||
| 267 | iterator end() const noexcept; | ||
| 268 | }; | ||
| 269 | |||
| 270 | //------------------------------------------------ | ||
| 271 | // | ||
| 272 | // subrange::iterator | ||
| 273 | // | ||
| 274 | //------------------------------------------------ | ||
| 275 | |||
| 276 | class fields_view_base::subrange:: | ||
| 277 | iterator | ||
| 278 | { | ||
| 279 | detail::header const* ph_ = nullptr; | ||
| 280 | std::size_t i_ = 0; | ||
| 281 | |||
| 282 | friend class fields_view_base::subrange; | ||
| 283 | |||
| 284 | BOOST_HTTP_PROTO_DECL | ||
| 285 | iterator( | ||
| 286 | detail::header const* ph, | ||
| 287 | std::size_t i) noexcept; | ||
| 288 | |||
| 289 | // end | ||
| 290 | BOOST_HTTP_PROTO_DECL | ||
| 291 | iterator( | ||
| 292 | detail::header const* ph) noexcept; | ||
| 293 | |||
| 294 | public: | ||
| 295 | using value_type = std::string; | ||
| 296 | using reference = core::string_view; | ||
| 297 | using pointer = void const*; | ||
| 298 | using difference_type = | ||
| 299 | std::ptrdiff_t; | ||
| 300 | using iterator_category = | ||
| 301 | std::forward_iterator_tag; | ||
| 302 | |||
| 303 | iterator() = default; | ||
| 304 | iterator(iterator const&) = default; | ||
| 305 | iterator& operator=( | ||
| 306 | iterator const&) = default; | ||
| 307 | |||
| 308 | // conversion to regular iterator | ||
| 309 | operator | ||
| 310 | fields_view_base:: | ||
| 311 | iterator() const noexcept | ||
| 312 | { | ||
| 313 | return {ph_, i_}; | ||
| 314 | } | ||
| 315 | |||
| 316 | bool | ||
| 317 | 303 | operator==( | |
| 318 | iterator const& other) const noexcept | ||
| 319 | { | ||
| 320 | // If this assert goes off, it means you | ||
| 321 | // are trying to compare iterators from | ||
| 322 | // different containers, which is undefined! | ||
| 323 |
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303 | BOOST_ASSERT(ph_ == other.ph_); |
| 324 | |||
| 325 | 303 | return i_ == other.i_; | |
| 326 | } | ||
| 327 | |||
| 328 | bool | ||
| 329 | 303 | operator!=( | |
| 330 | iterator const& other) const noexcept | ||
| 331 | { | ||
| 332 | 303 | return !(*this == other); | |
| 333 | } | ||
| 334 | |||
| 335 | BOOST_HTTP_PROTO_DECL | ||
| 336 | reference const | ||
| 337 | operator*() const noexcept; | ||
| 338 | |||
| 339 | reference const | ||
| 340 | operator->() const noexcept | ||
| 341 | { | ||
| 342 | return *(*this); | ||
| 343 | } | ||
| 344 | |||
| 345 | BOOST_HTTP_PROTO_DECL | ||
| 346 | iterator& | ||
| 347 | operator++() noexcept; | ||
| 348 | |||
| 349 | iterator | ||
| 350 | operator++(int) noexcept | ||
| 351 | { | ||
| 352 | auto temp = *this; | ||
| 353 | ++(*this); | ||
| 354 | return temp; | ||
| 355 | } | ||
| 356 | }; | ||
| 357 | |||
| 358 | inline | ||
| 359 | auto | ||
| 360 | 138 | fields_view_base:: | |
| 361 | subrange:: | ||
| 362 | begin() const noexcept -> | ||
| 363 | iterator | ||
| 364 | { | ||
| 365 | 138 | return {ph_, i_}; | |
| 366 | } | ||
| 367 | |||
| 368 | inline | ||
| 369 | auto | ||
| 370 | 138 | fields_view_base:: | |
| 371 | subrange:: | ||
| 372 | end() const noexcept -> | ||
| 373 | iterator | ||
| 374 | { | ||
| 375 | 138 | return {ph_}; | |
| 376 | } | ||
| 377 | |||
| 378 | //------------------------------------------------ | ||
| 379 | |||
| 380 | inline | ||
| 381 | fields_view_base:: | ||
| 382 | value_type:: | ||
| 383 | operator | ||
| 384 | fields_view_base:: | ||
| 385 | reference() const noexcept | ||
| 386 | { | ||
| 387 | return reference{ | ||
| 388 | id, name, value}; | ||
| 389 | } | ||
| 390 | |||
| 391 | //------------------------------------------------ | ||
| 392 | |||
| 393 | inline | ||
| 394 | auto | ||
| 395 | 785 | fields_view_base:: | |
| 396 | begin() const noexcept -> | ||
| 397 | iterator | ||
| 398 | { | ||
| 399 | 785 | return iterator(ph_, 0); | |
| 400 | } | ||
| 401 | |||
| 402 | inline | ||
| 403 | auto | ||
| 404 | 919 | fields_view_base:: | |
| 405 | end() const noexcept -> | ||
| 406 | iterator | ||
| 407 | { | ||
| 408 | 919 | return iterator(ph_, ph_->count); | |
| 409 | } | ||
| 410 | |||
| 411 | inline | ||
| 412 | auto | ||
| 413 | 3 | fields_view_base:: | |
| 414 | rbegin() const noexcept -> | ||
| 415 | reverse_iterator | ||
| 416 | { | ||
| 417 | 3 | return reverse_iterator(end()); | |
| 418 | } | ||
| 419 | |||
| 420 | inline | ||
| 421 | auto | ||
| 422 | 2 | fields_view_base:: | |
| 423 | rend() const noexcept -> | ||
| 424 | reverse_iterator | ||
| 425 | { | ||
| 426 | 2 | return reverse_iterator(begin()); | |
| 427 | } | ||
| 428 | |||
| 429 | } // http_proto | ||
| 430 | } // boost | ||
| 431 | |||
| 432 | #endif | ||
| 433 |