digiaonline /
graphql-php
| Total Complexity | 103 |
| Total Lines | 744 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like TokenReader often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use TokenReader, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
||
| 7 | class TokenReader implements TokenReaderInterface |
||
| 8 | { |
||
| 9 | |||
| 10 | /** |
||
| 11 | * The lexer owning this token reader. |
||
| 12 | * |
||
| 13 | * @var LexerInterface |
||
| 14 | */ |
||
| 15 | protected $lexer; |
||
| 16 | |||
| 17 | /** |
||
| 18 | * @inheritdoc |
||
| 19 | */ |
||
| 20 | public function setLexer(LexerInterface $lexer) |
||
| 21 | { |
||
| 22 | $this->lexer = $lexer; |
||
| 23 | return $this; |
||
| 24 | } |
||
| 25 | |||
| 26 | /** |
||
| 27 | * @inheritdoc |
||
| 28 | */ |
||
| 29 | public function getLexer(): LexerInterface |
||
| 30 | { |
||
| 31 | return $this->lexer; |
||
| 32 | } |
||
| 33 | |||
| 34 | /** |
||
| 35 | * @inheritdoc |
||
| 36 | */ |
||
| 37 | public function read( |
||
| 38 | int $code, |
||
| 39 | int $pos, |
||
| 40 | int $line, |
||
| 41 | int $col, |
||
| 42 | Token $prev |
||
| 43 | ): Token { |
||
| 44 | switch ($code) { |
||
| 45 | case 33: // ! |
||
| 46 | return $this->readBang($code, $pos, $line, $col, $prev); |
||
| 47 | case 35: // # |
||
| 48 | return $this->readComment($code, $pos, $line, $col, $prev); |
||
| 49 | case 36: // $ |
||
| 50 | return $this->readDollar($code, $pos, $line, $col, $prev); |
||
| 51 | case 38: // & |
||
| 52 | return $this->readAmp($code, $pos, $line, $col, $prev); |
||
| 53 | case 58: // : |
||
| 54 | return $this->readColon($code, $pos, $line, $col, $prev); |
||
| 55 | case 61: // = |
||
| 56 | return $this->readEquals($code, $pos, $line, $col, $prev); |
||
| 57 | case 64: // @ |
||
| 58 | return $this->readAt($code, $pos, $line, $col, $prev); |
||
| 59 | case 124: // | |
||
| 60 | return $this->readPipe($code, $pos, $line, $col, $prev); |
||
| 61 | case 40: |
||
| 62 | case 41: // ( or )~ |
||
| 63 | return $this->readParenthesis($code, $pos, $line, $col, $prev); |
||
| 64 | case 91: |
||
| 65 | case 93: // [ or ] |
||
| 66 | return $this->readBracket($code, $pos, $line, $col, $prev); |
||
| 67 | case 123: |
||
| 68 | case 125: // { or } |
||
| 69 | return $this->readBrace($code, $pos, $line, $col, $prev); |
||
| 70 | } |
||
| 71 | |||
| 72 | // Int: -?(0|[1-9][0-9]*) |
||
| 73 | // Float: -?(0|[1-9][0-9]*)(\.[0-9]+)?((E|e)(+|-)?[0-9]+)? |
||
| 74 | if (isNumber($code)) { |
||
| 75 | return $this->readNumber($code, $pos, $line, $col, $prev); |
||
| 76 | } |
||
| 77 | |||
| 78 | if ($this->isLetter($code) || $this->isUnderscore($code)) { |
||
| 79 | return $this->readName($code, $pos, $line, $col, $prev); |
||
| 80 | } |
||
| 81 | |||
| 82 | $body = $this->lexer->getBody(); |
||
| 83 | |||
| 84 | // Spread: ... |
||
| 85 | if ($code === 46 && charCodeAt($body, |
||
| 86 | $pos + 1) === 46 && charCodeAt($body, $pos + 2) === 46) { |
||
| 87 | return $this->readSpread($code, $pos, $line, $col, $prev); |
||
| 88 | } |
||
| 89 | |||
| 90 | // String: "([^"\\\u000A\u000D]|(\\(u[0-9a-fA-F]{4}|["\\/bfnrt])))*" |
||
| 91 | if ($code === 34 && charCodeAt($body, $pos + 1) !== 34) { |
||
| 92 | return $this->readString($code, $pos, $line, $col, $prev); |
||
| 93 | } |
||
| 94 | |||
| 95 | // Block String: """("?"?(\\"""|\\(?!=""")|[^"\\]))*""" |
||
| 96 | if ($this->isTripleQuote($body, $code, $pos)) { |
||
| 97 | return $this->readBlockString($code, $pos, $line, $col, $prev); |
||
| 98 | } |
||
|
|
|||
| 99 | } |
||
| 100 | |||
| 101 | /** |
||
| 102 | * @param int $code |
||
| 103 | * @param int $pos |
||
| 104 | * @param int $line |
||
| 105 | * @param int $col |
||
| 106 | * @param Token $prev |
||
| 107 | * @return Token |
||
| 108 | */ |
||
| 109 | protected function readName( |
||
| 128 | } |
||
| 129 | |||
| 130 | /** |
||
| 131 | * @param int $code |
||
| 132 | * @param int $pos |
||
| 133 | * @param int $line |
||
| 134 | * @param int $col |
||
| 135 | * @param Token $prev |
||
| 136 | * @return Token |
||
| 137 | * @throws SyntaxErrorException |
||
| 138 | */ |
||
| 139 | protected function readBlockString( |
||
| 140 | int $code, |
||
| 141 | int $pos, |
||
| 142 | int $line, |
||
| 143 | int $col, |
||
| 144 | Token $prev |
||
| 145 | ): Token { |
||
| 146 | $body = $this->lexer->getBody(); |
||
| 147 | $bodyLength = mb_strlen($body); |
||
| 148 | $start = $pos; |
||
| 149 | $pos = $start + 3; |
||
| 150 | $chunkStart = $pos; |
||
| 151 | $rawValue = ''; |
||
| 152 | |||
| 153 | while ($pos < $bodyLength && ($code = charCodeAt($body, |
||
| 154 | $pos)) !== null) { |
||
| 155 | // Closing Triple-Quote (""") |
||
| 156 | if ($this->isTripleQuote($body, $code, $pos)) { |
||
| 157 | $rawValue .= sliceString($body, $chunkStart, $pos); |
||
| 158 | |||
| 159 | return new Token( |
||
| 160 | TokenKindEnum::BLOCK_STRING, |
||
| 161 | $start, |
||
| 162 | $pos + 3, |
||
| 163 | $line, |
||
| 164 | $col, |
||
| 165 | $prev, |
||
| 166 | blockStringValue($rawValue) |
||
| 167 | ); |
||
| 168 | } |
||
| 169 | |||
| 170 | if (isSourceCharacter($code)) { |
||
| 171 | throw new SyntaxErrorException( |
||
| 172 | $this->lexer->getSource(), |
||
| 173 | $pos, |
||
| 174 | sprintf('Invalid character within String: %s', |
||
| 175 | printCharCode($code)) |
||
| 176 | ); |
||
| 177 | } |
||
| 178 | |||
| 179 | if ($this->isEscapedTripleQuote($body, $code, $pos)) { |
||
| 180 | $rawValue .= sliceString($body, $chunkStart, $pos) . '"""'; |
||
| 181 | $pos += 4; |
||
| 182 | $chunkStart = $pos; |
||
| 183 | } else { |
||
| 184 | ++$pos; |
||
| 185 | } |
||
| 186 | } |
||
| 187 | |||
| 188 | throw new SyntaxErrorException($this->lexer->getSource(), $pos, |
||
| 189 | 'Unterminated string.'); |
||
| 190 | } |
||
| 191 | |||
| 192 | /** |
||
| 193 | * @param int $code |
||
| 194 | * @param int $pos |
||
| 195 | * @param int $line |
||
| 196 | * @param int $col |
||
| 197 | * @param Token $prev |
||
| 198 | * @return Token |
||
| 199 | * @throws SyntaxErrorException |
||
| 200 | */ |
||
| 201 | protected function readNumber( |
||
| 202 | int $code, |
||
| 203 | int $pos, |
||
| 204 | int $line, |
||
| 205 | int $col, |
||
| 206 | Token $prev |
||
| 207 | ): Token { |
||
| 208 | $body = $this->lexer->getBody(); |
||
| 209 | $start = $pos; |
||
| 210 | $isFloat = false; |
||
| 211 | |||
| 212 | if ($code === 45) { |
||
| 213 | // - |
||
| 214 | $code = charCodeAt($body, ++$pos); |
||
| 215 | } |
||
| 216 | |||
| 217 | if ($code === 48) { |
||
| 218 | // 0 |
||
| 219 | $code = charCodeAt($body, ++$pos); |
||
| 220 | if (isNumber($code)) { |
||
| 221 | throw new SyntaxErrorException( |
||
| 222 | $this->lexer->getSource(), |
||
| 223 | $pos, |
||
| 224 | sprintf('Invalid number, unexpected digit after 0: %s.', |
||
| 225 | printCharCode($code)) |
||
| 226 | ); |
||
| 227 | } |
||
| 228 | } else { |
||
| 229 | $pos = $this->readDigits($code, $pos); |
||
| 230 | $code = charCodeAt($body, $pos); |
||
| 231 | } |
||
| 232 | |||
| 233 | if ($code === 46) { |
||
| 234 | // . |
||
| 235 | $isFloat = true; |
||
| 236 | $code = charCodeAt($body, ++$pos); |
||
| 237 | $pos = $this->readDigits($code, $pos); |
||
| 238 | $code = charCodeAt($body, $pos); |
||
| 239 | } |
||
| 240 | |||
| 241 | if ($code === 69 || $code === 101) { |
||
| 242 | // e or E |
||
| 243 | $isFloat = true; |
||
| 244 | $code = charCodeAt($body, ++$pos); |
||
| 245 | |||
| 246 | if ($code === 43 || $code === 45) { |
||
| 247 | // + or - |
||
| 248 | $code = charCodeAt($body, ++$pos); |
||
| 249 | } |
||
| 250 | |||
| 251 | $pos = $this->readDigits($code, $pos); |
||
| 252 | } |
||
| 253 | |||
| 254 | return new Token( |
||
| 255 | $isFloat ? TokenKindEnum::FLOAT : TokenKindEnum::INT, |
||
| 256 | $start, |
||
| 257 | $pos, |
||
| 258 | $line, |
||
| 259 | $col, |
||
| 260 | $prev, |
||
| 261 | sliceString($body, $start, $pos) |
||
| 262 | ); |
||
| 263 | } |
||
| 264 | |||
| 265 | /** |
||
| 266 | * @param int $code |
||
| 267 | * @param int $pos |
||
| 268 | * @param int $line |
||
| 269 | * @param int $col |
||
| 270 | * @param Token $prev |
||
| 271 | * @return Token |
||
| 272 | * @throws SyntaxErrorException |
||
| 273 | */ |
||
| 274 | protected function readString( |
||
| 275 | int $code, |
||
| 276 | int $pos, |
||
| 277 | int $line, |
||
| 278 | int $col, |
||
| 279 | Token $prev |
||
| 280 | ): Token { |
||
| 281 | $body = $this->lexer->getBody(); |
||
| 282 | $bodyLength = mb_strlen($body); |
||
| 283 | $start = $pos; |
||
| 284 | $pos = $start + 1; |
||
| 285 | $chunkStart = $pos; |
||
| 286 | $value = ''; |
||
| 287 | |||
| 288 | while ($pos < $bodyLength && ($code = charCodeAt($body, |
||
| 289 | $pos)) !== null && !$this->isLineTerminator($code)) { |
||
| 290 | // Closing Quote (") |
||
| 291 | if ($code === 34) { |
||
| 292 | $value .= sliceString($body, $chunkStart, $pos); |
||
| 293 | |||
| 294 | return new Token(TokenKindEnum::STRING, $start, $pos + 1, $line, |
||
| 295 | $col, $prev, $value); |
||
| 296 | } |
||
| 297 | |||
| 298 | if ($this->isSourceCharacter($code)) { |
||
| 299 | throw new SyntaxErrorException( |
||
| 300 | $this->lexer->getSource(), |
||
| 301 | $pos, |
||
| 302 | sprintf('Invalid character within String: %s', |
||
| 303 | printCharCode($code)) |
||
| 304 | ); |
||
| 305 | } |
||
| 306 | |||
| 307 | ++$pos; |
||
| 308 | |||
| 309 | if ($code === 92) { |
||
| 310 | // \ |
||
| 311 | $value .= sliceString($body, $chunkStart, $pos + 1); |
||
| 312 | $code = charCodeAt($body, $pos); |
||
| 313 | |||
| 314 | switch ($code) { |
||
| 315 | case 34: |
||
| 316 | $value .= '"'; |
||
| 317 | break; |
||
| 318 | case 47: |
||
| 319 | $value .= '/'; |
||
| 320 | break; |
||
| 321 | case 92: |
||
| 322 | $value .= '\\'; |
||
| 323 | break; |
||
| 324 | case 98: |
||
| 325 | $value .= '\b'; |
||
| 326 | break; |
||
| 327 | case 102: |
||
| 328 | $value .= '\f'; |
||
| 329 | break; |
||
| 330 | case 110: |
||
| 331 | $value .= '\n'; |
||
| 332 | break; |
||
| 333 | case 114: |
||
| 334 | $value .= '\r'; |
||
| 335 | break; |
||
| 336 | case 116: |
||
| 337 | $value .= '\t'; |
||
| 338 | break; |
||
| 339 | case 117: |
||
| 340 | // u |
||
| 341 | $charCode = uniCharCode( |
||
| 342 | charCodeAt($body, $pos + 1), |
||
| 343 | charCodeAt($body, $pos + 2), |
||
| 344 | charCodeAt($body, $pos + 3), |
||
| 345 | charCodeAt($body, $pos + 4) |
||
| 346 | ); |
||
| 347 | if ($charCode < 0) { |
||
| 348 | throw new SyntaxErrorException( |
||
| 349 | $this->lexer->getSource(), |
||
| 350 | $pos, |
||
| 351 | sprintf( |
||
| 352 | 'Invalid character escape sequence: \\u%s', |
||
| 353 | sliceString($body, $pos + 1, $pos + 5) |
||
| 354 | ) |
||
| 355 | ); |
||
| 356 | } |
||
| 357 | $value .= chr($charCode); |
||
| 358 | $pos += 4; |
||
| 359 | break; |
||
| 360 | default: |
||
| 361 | throw new SyntaxErrorException( |
||
| 362 | $this->lexer->getSource(), |
||
| 363 | $pos, |
||
| 364 | sprintf('Invalid character escape sequence: \\%s', |
||
| 365 | chr($code)) |
||
| 366 | ); |
||
| 367 | } |
||
| 368 | |||
| 369 | ++$pos; |
||
| 370 | $chunkStart = $pos; |
||
| 371 | } |
||
| 372 | } |
||
| 373 | |||
| 374 | throw new SyntaxErrorException($this->lexer->getSource(), $pos, |
||
| 375 | 'Unterminated string.'); |
||
| 376 | } |
||
| 377 | |||
| 378 | /** |
||
| 379 | * @param int $code |
||
| 380 | * @param int $pos |
||
| 381 | * @param int $line |
||
| 382 | * @param int $col |
||
| 383 | * @param Token $prev |
||
| 384 | * @return Token |
||
| 385 | */ |
||
| 386 | protected function readSpread( |
||
| 387 | int $code, |
||
| 388 | int $pos, |
||
| 389 | int $line, |
||
| 390 | int $col, |
||
| 391 | Token $prev |
||
| 392 | ): Token { |
||
| 393 | return new Token(TokenKindEnum::SPREAD, $pos, $pos + 3, $line, $col, |
||
| 394 | $prev); |
||
| 395 | } |
||
| 396 | |||
| 397 | /** |
||
| 398 | * @param int $code |
||
| 399 | * @param int $pos |
||
| 400 | * @param int $line |
||
| 401 | * @param int $col |
||
| 402 | * @param Token $prev |
||
| 403 | * @return Token |
||
| 404 | */ |
||
| 405 | protected function readDollar( |
||
| 406 | int $code, |
||
| 407 | int $pos, |
||
| 408 | int $line, |
||
| 409 | int $col, |
||
| 410 | Token $prev |
||
| 411 | ): Token { |
||
| 412 | return new Token(TokenKindEnum::DOLLAR, $pos, $pos + 1, $line, $col, |
||
| 413 | $prev); |
||
| 414 | } |
||
| 415 | |||
| 416 | /** |
||
| 417 | * @param int $code |
||
| 418 | * @param int $pos |
||
| 419 | * @param int $line |
||
| 420 | * @param int $col |
||
| 421 | * @param Token $prev |
||
| 422 | * @return Token |
||
| 423 | */ |
||
| 424 | protected function readPipe( |
||
| 425 | int $code, |
||
| 426 | int $pos, |
||
| 427 | int $line, |
||
| 428 | int $col, |
||
| 429 | Token $prev |
||
| 430 | ): Token { |
||
| 431 | return new Token(TokenKindEnum::PIPE, $pos, $pos + 1, $line, $col, |
||
| 432 | $prev); |
||
| 433 | } |
||
| 434 | |||
| 435 | /** |
||
| 436 | * @param int $code |
||
| 437 | * @param int $pos |
||
| 438 | * @param int $line |
||
| 439 | * @param int $col |
||
| 440 | * @param Token $prev |
||
| 441 | * @return Token |
||
| 442 | */ |
||
| 443 | protected function readParenthesis( |
||
| 444 | int $code, |
||
| 445 | int $pos, |
||
| 446 | int $line, |
||
| 447 | int $col, |
||
| 448 | Token $prev |
||
| 449 | ): Token { |
||
| 450 | return $code === 40 |
||
| 451 | ? new Token(TokenKindEnum::PAREN_L, $pos, $pos + 1, $line, $col, |
||
| 452 | $prev) |
||
| 453 | : new Token(TokenKindEnum::PAREN_R, $pos, $pos + 1, $line, $col, |
||
| 454 | $prev); |
||
| 455 | } |
||
| 456 | |||
| 457 | /** |
||
| 458 | * @param int $code |
||
| 459 | * @param int $pos |
||
| 460 | * @param int $line |
||
| 461 | * @param int $col |
||
| 462 | * @param Token $prev |
||
| 463 | * @return Token |
||
| 464 | */ |
||
| 465 | protected function readEquals( |
||
| 466 | int $code, |
||
| 467 | int $pos, |
||
| 468 | int $line, |
||
| 469 | int $col, |
||
| 470 | Token $prev |
||
| 471 | ): Token { |
||
| 472 | return new Token(TokenKindEnum::EQUALS, $pos, $pos + 1, $line, $col, |
||
| 473 | $prev); |
||
| 474 | } |
||
| 475 | |||
| 476 | /** |
||
| 477 | * @param int $code |
||
| 478 | * @param int $pos |
||
| 479 | * @param int $line |
||
| 480 | * @param int $col |
||
| 481 | * @param Token $prev |
||
| 482 | * @return Token |
||
| 483 | */ |
||
| 484 | protected function readAt( |
||
| 485 | int $code, |
||
| 486 | int $pos, |
||
| 487 | int $line, |
||
| 488 | int $col, |
||
| 489 | Token $prev |
||
| 490 | ): Token { |
||
| 491 | return new Token(TokenKindEnum::AT, $pos, $pos + 1, $line, $col, $prev); |
||
| 492 | } |
||
| 493 | |||
| 494 | /** |
||
| 495 | * @param int $code |
||
| 496 | * @param int $pos |
||
| 497 | * @param int $line |
||
| 498 | * @param int $col |
||
| 499 | * @param Token $prev |
||
| 500 | * @return Token |
||
| 501 | */ |
||
| 502 | protected function readComment( |
||
| 503 | int $code, |
||
| 504 | int $pos, |
||
| 505 | int $line, |
||
| 506 | int $col, |
||
| 507 | Token $prev |
||
| 508 | ): Token { |
||
| 509 | $body = $this->lexer->getBody(); |
||
| 510 | $start = $pos; |
||
| 511 | |||
| 512 | do { |
||
| 513 | $code = charCodeAt($body, ++$pos); |
||
| 514 | } while ($code !== null && ($code > 0x001f || $code === 0x0009)); // SourceCharacter but not LineTerminator |
||
| 515 | |||
| 516 | return new Token( |
||
| 517 | TokenKindEnum::COMMENT, |
||
| 518 | $start, |
||
| 519 | $pos, |
||
| 520 | $line, |
||
| 521 | $col, |
||
| 522 | $prev, |
||
| 523 | sliceString($body, $start + 1, $pos) |
||
| 524 | ); |
||
| 525 | } |
||
| 526 | |||
| 527 | /** |
||
| 528 | * @param int $code |
||
| 529 | * @param int $pos |
||
| 530 | * @param int $line |
||
| 531 | * @param int $col |
||
| 532 | * @param Token $prev |
||
| 533 | * @return Token |
||
| 534 | */ |
||
| 535 | protected function readColon( |
||
| 536 | int $code, |
||
| 537 | int $pos, |
||
| 538 | int $line, |
||
| 539 | int $col, |
||
| 540 | Token $prev |
||
| 541 | ): Token { |
||
| 542 | return new Token(TokenKindEnum::COLON, $pos, $pos + 1, $line, $col, |
||
| 543 | $prev); |
||
| 544 | } |
||
| 545 | |||
| 546 | /** |
||
| 547 | * @param int $code |
||
| 548 | * @param int $pos |
||
| 549 | * @param int $line |
||
| 550 | * @param int $col |
||
| 551 | * @param Token $prev |
||
| 552 | * @return Token |
||
| 553 | */ |
||
| 554 | protected function readAmp( |
||
| 555 | int $code, |
||
| 556 | int $pos, |
||
| 557 | int $line, |
||
| 558 | int $col, |
||
| 559 | Token $prev |
||
| 560 | ): Token { |
||
| 561 | return new Token(TokenKindEnum::AMP, $pos, $pos + 1, $line, $col, |
||
| 562 | $prev); |
||
| 563 | } |
||
| 564 | |||
| 565 | /** |
||
| 566 | * @param int $code |
||
| 567 | * @param int $pos |
||
| 568 | * @param int $line |
||
| 569 | * @param int $col |
||
| 570 | * @param Token $prev |
||
| 571 | * @return Token |
||
| 572 | */ |
||
| 573 | protected function readBang( |
||
| 574 | int $code, |
||
| 575 | int $pos, |
||
| 576 | int $line, |
||
| 577 | int $col, |
||
| 578 | Token $prev |
||
| 579 | ): Token { |
||
| 580 | return new Token(TokenKindEnum::BANG, $pos, $pos + 1, $line, $col, |
||
| 581 | $prev); |
||
| 582 | } |
||
| 583 | |||
| 584 | /** |
||
| 585 | * @param int $code |
||
| 586 | * @param int $pos |
||
| 587 | * @param int $line |
||
| 588 | * @param int $col |
||
| 589 | * @param Token $prev |
||
| 590 | * @return Token |
||
| 591 | */ |
||
| 592 | protected function readBrace( |
||
| 593 | int $code, |
||
| 594 | int $pos, |
||
| 595 | int $line, |
||
| 596 | int $col, |
||
| 597 | Token $prev |
||
| 598 | ): Token { |
||
| 599 | return $code === 123 |
||
| 600 | ? new Token(TokenKindEnum::BRACE_L, $pos, $pos + 1, $line, $col, |
||
| 601 | $prev) |
||
| 602 | : new Token(TokenKindEnum::BRACE_R, $pos, $pos + 1, $line, $col, |
||
| 603 | $prev); |
||
| 604 | } |
||
| 605 | |||
| 606 | /** |
||
| 607 | * @param int $code |
||
| 608 | * @param int $pos |
||
| 609 | * @param int $line |
||
| 610 | * @param int $col |
||
| 611 | * @param Token $prev |
||
| 612 | * @return Token |
||
| 613 | */ |
||
| 614 | protected function readBracket( |
||
| 615 | int $code, |
||
| 616 | int $pos, |
||
| 617 | int $line, |
||
| 618 | int $col, |
||
| 619 | Token $prev |
||
| 620 | ): Token { |
||
| 621 | return $code === 91 |
||
| 622 | ? new Token(TokenKindEnum::BRACKET_L, $pos, $pos + 1, $line, $col, |
||
| 623 | $prev) |
||
| 624 | : new Token(TokenKindEnum::BRACKET_R, $pos, $pos + 1, $line, $col, |
||
| 625 | $prev); |
||
| 626 | } |
||
| 627 | |||
| 628 | /** |
||
| 629 | * @param int $code |
||
| 630 | * @param int $pos |
||
| 631 | * @return int |
||
| 632 | * @throws SyntaxErrorException |
||
| 633 | */ |
||
| 634 | protected function readDigits(int $code, int $pos): int |
||
| 635 | { |
||
| 636 | $body = $this->lexer->getBody(); |
||
| 637 | |||
| 638 | if (isNumber($code)) { |
||
| 639 | do { |
||
| 640 | $code = charCodeAt($body, ++$pos); |
||
| 641 | } while (isNumber($code)); |
||
| 642 | |||
| 643 | return $pos; |
||
| 644 | } |
||
| 645 | |||
| 646 | throw new SyntaxErrorException( |
||
| 647 | $this->lexer->getSource(), |
||
| 648 | $pos, |
||
| 649 | sprintf('Invalid number, expected digit but got: %s', |
||
| 650 | printCharCode($code)) |
||
| 651 | ); |
||
| 652 | } |
||
| 653 | |||
| 654 | /** |
||
| 655 | * @TODO Move to utils. |
||
| 656 | * |
||
| 657 | * @param int $code |
||
| 658 | * @return bool |
||
| 659 | */ |
||
| 660 | protected function isLineTerminator(int $code): bool |
||
| 661 | { |
||
| 662 | return $code === 0x000a || $code === 0x000d; |
||
| 663 | } |
||
| 664 | |||
| 665 | /** |
||
| 666 | * @TODO Move to utils. |
||
| 667 | * |
||
| 668 | * @param int $code |
||
| 669 | * @return bool |
||
| 670 | */ |
||
| 671 | protected function isSourceCharacter(int $code): bool |
||
| 674 | } |
||
| 675 | |||
| 676 | /** |
||
| 677 | * @TODO Move to utils. |
||
| 678 | * |
||
| 679 | * @param string $body |
||
| 680 | * @param int $code |
||
| 681 | * @param int $pos |
||
| 682 | * @return bool |
||
| 683 | */ |
||
| 684 | protected function isTripleQuote(string $body, int $code, int $pos): bool |
||
| 688 | } |
||
| 689 | |||
| 690 | /** |
||
| 691 | * @TODO Move to utils. |
||
| 692 | * |
||
| 693 | * @param string $body |
||
| 694 | * @param int $code |
||
| 695 | * @param int $pos |
||
| 696 | * @return bool |
||
| 697 | */ |
||
| 698 | protected function isEscapedTripleQuote( |
||
| 707 | } |
||
| 708 | |||
| 709 | /** |
||
| 710 | * @TODO Move to utils. |
||
| 711 | * |
||
| 712 | * @param int $code |
||
| 713 | * @return bool |
||
| 714 | */ |
||
| 715 | protected function isLetter(int $code): bool |
||
| 716 | { |
||
| 717 | return ($code >= 65 && $code <= 90) || ($code >= 97 && $code <= 122); // a-z or A-Z |
||
| 718 | } |
||
| 719 | |||
| 720 | /** |
||
| 721 | * @TODO Move to utils. |
||
| 722 | * |
||
| 723 | * @param int $code |
||
| 724 | * @return bool |
||
| 725 | */ |
||
| 726 | protected function isNumber(int $code): bool |
||
| 727 | { |
||
| 728 | return $code >= 48 && $code <= 57; // 0-9 |
||
| 729 | } |
||
| 730 | |||
| 731 | /** |
||
| 732 | * @TODO Move to utils. |
||
| 733 | * |
||
| 734 | * @param int $code |
||
| 735 | * @return bool |
||
| 736 | */ |
||
| 737 | protected function isUnderscore(int $code): bool |
||
| 740 | } |
||
| 741 | |||
| 742 | /** |
||
| 743 | * @TODO Move to utils. |
||
| 744 | * |
||
| 745 | * @param int $code |
||
| 746 | * @return bool |
||
| 747 | */ |
||
| 748 | protected function isAlphaNumeric(int $code): bool |
||
| 751 | } |
||
| 752 | } |
||
| 753 |
Loading history...
For hinted functions/methods where all return statements with the correct type are only reachable via conditions, ?null? gets implicitly returned which may be incompatible with the hinted type. Let?s take a look at an example: