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| 1 | <?php |
| 2 | /** |
| 3 | * The purpose of this class is only to find changes that should be made. |
| 4 | * i.e. classes and namespaces to change. |
| 5 | * Those recorded are updated in a later step. |
| 6 | */ |
| 7 | |
| 8 | namespace BrianHenryIE\Strauss\Pipeline; |
| 9 | |
| 10 | use BrianHenryIE\SimplePhpParser\Model\PHPClass; |
| 11 | use BrianHenryIE\SimplePhpParser\Model\PHPConst; |
| 12 | use BrianHenryIE\SimplePhpParser\Model\PHPFunction; |
| 13 | use BrianHenryIE\SimplePhpParser\Parsers\Helper\ParserContainer; |
| 14 | use BrianHenryIE\SimplePhpParser\Parsers\Helper\ParserErrorHandler; |
| 15 | use BrianHenryIE\SimplePhpParser\Parsers\Helper\Utils; |
| 16 | use BrianHenryIE\SimplePhpParser\Parsers\PhpCodeParser; |
| 17 | use BrianHenryIE\SimplePhpParser\Parsers\Visitors\ASTVisitor; |
| 18 | use BrianHenryIE\Strauss\Composer\ComposerPackage; |
| 19 | use BrianHenryIE\Strauss\Config\FileSymbolScannerConfigInterface; |
| 20 | use BrianHenryIE\Strauss\Files\DiscoveredFiles; |
| 21 | use BrianHenryIE\Strauss\Files\FileBase; |
| 22 | use BrianHenryIE\Strauss\Files\FileWithDependency; |
| 23 | use BrianHenryIE\Strauss\Helpers\Flysystem\FileSystem; |
| 24 | use BrianHenryIE\Strauss\Helpers\ParserErrorException; |
| 25 | use BrianHenryIE\Strauss\Types\ClassSymbol; |
| 26 | use BrianHenryIE\Strauss\Types\ConstantSymbol; |
| 27 | use BrianHenryIE\Strauss\Types\DiscoveredSymbol; |
| 28 | use BrianHenryIE\Strauss\Types\DiscoveredSymbols; |
| 29 | use BrianHenryIE\Strauss\Types\FunctionSymbol; |
| 30 | use BrianHenryIE\Strauss\Types\InterfaceSymbol; |
| 31 | use BrianHenryIE\Strauss\Types\NamespaceSymbol; |
| 32 | use BrianHenryIE\Strauss\Types\TraitSymbol; |
| 33 | use League\Flysystem\FilesystemException; |
| 34 | use PhpParser\Node; |
| 35 | use PhpParser\Parser; |
| 36 | use PhpParser\ParserFactory; |
| 37 | use PhpParser\PrettyPrinter\Standard; |
| 38 | use Psr\Log\LoggerAwareTrait; |
| 39 | use Psr\Log\LoggerInterface; |
| 40 | use Psr\Log\NullLogger; |
| 41 | |
| 42 | class FileSymbolScanner |
| 43 | { |
| 44 | use LoggerAwareTrait; |
| 45 | |
| 46 | /** |
| 47 | * @var array<class-string<DiscoveredSymbol>,string> |
| 48 | */ |
| 49 | private const SYMBOL_LOG_TYPES = [ |
| 50 | ClassSymbol::class => 'class', |
| 51 | ConstantSymbol::class => 'constant', |
| 52 | FunctionSymbol::class => 'function', |
| 53 | InterfaceSymbol::class => 'interface', |
| 54 | NamespaceSymbol::class => 'namespace', |
| 55 | TraitSymbol::class => 'trait', |
| 56 | ]; |
| 57 | |
| 58 | protected DiscoveredSymbols $discoveredSymbols; |
| 59 | |
| 60 | protected FileSystem $filesystem; |
| 61 | |
| 62 | protected FileSymbolScannerConfigInterface $config; |
| 63 | |
| 64 | /** @var string[] */ |
| 65 | protected array $builtIns = []; |
| 66 | |
| 67 | protected ?Parser $parser = null; |
| 68 | protected ?Standard $prettyPrinter = null; |
| 69 | |
| 70 | /** |
| 71 | * @var array<string,bool> |
| 72 | */ |
| 73 | protected array $loggedSymbols = []; |
| 74 | |
| 75 | /** |
| 76 | * @var array<string,bool> |
| 77 | */ |
| 78 | protected array $builtInsLookup = []; |
| 79 | |
| 80 | /** |
| 81 | * FileScanner constructor. |
| 82 | */ |
| 83 | public function __construct( |
| 84 | FileSymbolScannerConfigInterface $config, |
| 85 | DiscoveredSymbols $discoveredSymbols, |
| 86 | FileSystem $filesystem, |
| 87 | ?LoggerInterface $logger = null |
| 88 | ) { |
| 89 | $this->config = $config; |
| 90 | $this->discoveredSymbols = $discoveredSymbols; |
| 91 | $this->filesystem = $filesystem; |
| 92 | $this->logger = $logger ?? new NullLogger(); |
| 93 | } |
| 94 | |
| 95 | protected function add(DiscoveredSymbol $symbol, ?FileBase $file = null): void |
| 96 | { |
| 97 | if (in_array($symbol->getOriginalFqdnName(), $this->getBuiltIns())) { |
| 98 | $this->logger->debug('Skipping built-in symbol {symbolName}, possible a polyfill.', [ |
| 99 | 'symbolName' => $symbol->getOriginalLocalName(), |
| 100 | ]); |
| 101 | return; |
| 102 | } |
| 103 | |
| 104 | $this->discoveredSymbols->add($symbol); |
| 105 | |
| 106 | if ($file instanceof FileWithDependency) { |
| 107 | $file->getDependency()->addDiscoveredSymbol($symbol); |
| 108 | } |
| 109 | |
| 110 | $level = in_array($symbol->getOriginalFqdnName(), $this->loggedSymbols) ? 'debug' : 'info'; |
| 111 | $newText = in_array($symbol->getOriginalFqdnName(), $this->loggedSymbols) ? '' : 'new '; |
| 112 | |
| 113 | $this->loggedSymbols[] = $symbol->getOriginalFqdnName(); |
| 114 | |
| 115 | $this->logger->log( |
| 116 | $level, |
| 117 | sprintf( |
| 118 | "Found %s%s:::%s", |
| 119 | $newText, |
| 120 | // From `BrianHenryIE\Strauss\Types\TraitSymbol` -> `trait` |
| 121 | strtolower(str_replace('Symbol', '', array_reverse(explode('\\', get_class($symbol)))[0])), |
| 122 | $symbol->getOriginalFqdnName() |
| 123 | ) |
| 124 | ); |
| 125 | } |
| 126 | |
| 127 | /** |
| 128 | * @throws FilesystemException |
| 129 | */ |
| 130 | public function findInFiles(DiscoveredFiles $files): DiscoveredSymbols |
| 131 | { |
| 132 | $packagesToPrefixLookup = array_fill_keys(array_keys($this->config->getPackagesToPrefix()), true); |
| 133 | $projectDirectory = $this->config->getProjectAbsolutePath(); |
| 134 | |
| 135 | foreach ($files->getFiles() as $file) { |
| 136 | if ($file instanceof FileWithDependency |
| 137 | && !in_array($file->getDependency()->getPackageName(), array_keys($this->config->getPackagesToPrefix()))) { |
| 138 | /** |
| 139 | * We will not prefix symbols found in this file because it is not in a default or listed package. |
| 140 | * |
| 141 | * TODO: Move this logic to {@see MarkSymbolsForRenaming}. |
| 142 | */ |
| 143 | $file->setDoPrefix(false); |
| 144 | // continue; |
| 145 | } |
| 146 | |
| 147 | if ($file instanceof FileWithDependency |
| 148 | && !isset($packagesToPrefixLookup[$file->getDependency()->getPackageName()]) |
| 149 | ) { |
| 150 | $doPrefix = false; |
| 151 | $file->setDoPrefix($doPrefix); |
| 152 | } |
| 153 | |
| 154 | $relativeFilePath = |
| 155 | $file instanceof FileWithDependency |
| 156 | ? $file->getVendorRelativePath() |
| 157 | : $this->filesystem->getRelativePath($projectDirectory, $file->getSourcePath()); |
| 158 | |
| 159 | if (!$file->isPhpFile()) { |
| 160 | $file->setDoPrefix(false); |
| 161 | $this->logger->debug("Skipping non-PHP file:::". $relativeFilePath); |
| 162 | continue; |
| 163 | } |
| 164 | |
| 165 | $this->logger->info("Scanning file:::" . $relativeFilePath); |
| 166 | $this->find( |
| 167 | /** |
| 168 | * "one unreadable file cancels scanning of all remaining files with no per-file error handling." |
| 169 | * I think this is desirable, since we just ran the file list a moment ago, if something is unreadable, that's a show stopper. |
| 170 | */ |
| 171 | $this->filesystem->read($file->getSourcePath()), |
| 172 | $file, |
| 173 | $file instanceof FileWithDependency ? $file->getDependency() : null |
| 174 | ); |
| 175 | } |
| 176 | |
| 177 | return $this->discoveredSymbols; |
| 178 | } |
| 179 | |
| 180 | protected function find(string $contents, FileBase $file, ?ComposerPackage $package = null): void |
| 181 | { |
| 182 | $namespaces = $this->splitByNamespace($contents); |
| 183 | PhpCodeParser::$classExistsAutoload = false; |
| 184 | |
| 185 | foreach ($namespaces as $namespaceName => $contents) { |
| 186 | $namespaceSymbol = $this->addDiscoveredNamespaceChange($namespaceName, $file, $package); |
| 187 | try { |
| 188 | $phpCode = $this->parsePhpCode($contents); |
| 189 | } catch (ParserErrorException $e) { |
| 190 | $this->logger->warning('Failed to parse namespace {namespaceName} in file {filePath} with error: {errorMessage}', [ |
| 191 | 'namespaceName' => $namespaceName, |
| 192 | 'filePath' => $file->getSourcePath(), |
| 193 | 'errorMessage' => $e->getMessage(), |
| 194 | ]); |
| 195 | continue; |
| 196 | } |
| 197 | |
| 198 | /** @var PHPClass[] $phpClasses */ |
| 199 | $phpClasses = $phpCode->getClasses(); |
| 200 | foreach ($phpClasses as $fqdnClassname => $class) { |
| 201 | // Skip classes defined in other files. |
| 202 | // I tried to use the $class->file property but it was autoloading from Strauss so incorrectly setting |
| 203 | // the path, different to the file being scanned. |
| 204 | // TODO this was causing false positives when found in comments. |
| 205 | // if (false !== strpos($contents, "use {$fqdnClassname};")) { |
| 206 | // continue; |
| 207 | // } |
| 208 | |
| 209 | $isAbstract = (bool) $class->is_abstract; |
| 210 | $extends = $class->parentClass; |
| 211 | $interfaces = $class->interfaces; |
| 212 | $classSymbol = $this->addDiscoveredClassChange($fqdnClassname, $isAbstract, $file, $extends, $namespaceSymbol, $interfaces); |
| 213 | if ($classSymbol) { |
| 214 | $classSymbol->setDoRename($file->isDoPrefix()); |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | /** @var PHPFunction[] $phpFunctions */ |
| 219 | $phpFunctions = $phpCode->getFunctions(); |
| 220 | foreach ($phpFunctions as $functionName => $function) { |
| 221 | if ($this->isBuiltInSymbol($functionName)) { |
| 222 | continue; |
| 223 | } |
| 224 | $functionSymbol = $this->discoveredSymbols->getFunction($functionName); |
| 225 | if (is_null($functionSymbol)) { |
| 226 | $functionSymbol = new FunctionSymbol($functionName, $file, $namespaceSymbol, $package); |
| 227 | $this->add($functionSymbol); |
| 228 | } |
| 229 | $functionSymbol->addSourceFile($file); |
| 230 | $functionSymbol->setDoRename($file->isDoPrefix()); |
| 231 | } |
| 232 | |
| 233 | /** @var PHPConst[] $phpConstants */ |
| 234 | $phpConstants = $phpCode->getConstants(); |
| 235 | foreach ($phpConstants as $constantName => $constant) { |
| 236 | if (empty(trim($constantName, '\\'))) { |
| 237 | continue; |
| 238 | } |
| 239 | $constantSymbol = $this->discoveredSymbols->getConst($constantName); |
| 240 | if (is_null($constantSymbol)) { |
| 241 | $constantSymbol = new ConstantSymbol($constantName, $file, $namespaceSymbol); |
| 242 | $this->add($constantSymbol, $file); |
| 243 | } |
| 244 | $constantSymbol->addSourceFile($file); |
| 245 | $constantSymbol->setDoRename($file->isDoPrefix()); |
| 246 | } |
| 247 | |
| 248 | $phpInterfaces = $phpCode->getInterfaces(); |
| 249 | foreach ($phpInterfaces as $interfaceName => $interface) { |
| 250 | $interfaceSymbol = $this->discoveredSymbols->getInterface($interfaceName); |
| 251 | if (is_null($interfaceSymbol)) { |
| 252 | $interfaceSymbol = new InterfaceSymbol($interfaceName, $file, $namespaceSymbol); |
| 253 | $this->add($interfaceSymbol); |
| 254 | } |
| 255 | $interfaceSymbol->addSourceFile($file); |
| 256 | $interfaceSymbol->setDoRename($file->isDoPrefix()); |
| 257 | } |
| 258 | |
| 259 | $phpTraits = $phpCode->getTraits(); |
| 260 | foreach ($phpTraits as $traitName => $trait) { |
| 261 | $traitSymbol = $this->discoveredSymbols->getTrait($traitName); |
| 262 | if (is_null($traitSymbol)) { |
| 263 | $traitSymbol = new TraitSymbol($traitName, $file, $namespaceSymbol); |
| 264 | $this->add($traitSymbol); |
| 265 | } |
| 266 | $traitSymbol->addSourceFile($file); |
| 267 | $traitSymbol->setDoRename($file->isDoPrefix()); |
| 268 | } |
| 269 | |
| 270 | // TODO: enum. |
| 271 | } |
| 272 | } |
| 273 | |
| 274 | /** |
| 275 | * @param string $contents |
| 276 | * @return array<string,string> |
| 277 | */ |
| 278 | protected function splitByNamespace(string $contents):array |
| 279 | { |
| 280 | $namespaceDeclarations = $this->getNamespaceDeclarations($contents); |
| 281 | |
| 282 | if (count($namespaceDeclarations) === 0) { |
| 283 | if ($this->hasMalformedNamespaceDeclaration($contents)) { |
| 284 | return []; |
| 285 | } |
| 286 | |
| 287 | return ['\\' => '<?php' . PHP_EOL . PHP_EOL . $contents]; |
| 288 | } |
| 289 | |
| 290 | if (count($namespaceDeclarations) === 1) { |
| 291 | $namespaceName = $namespaceDeclarations[0] ?? '\\'; |
| 292 | $namespaceName = empty($namespaceName) ? '\\' : $namespaceName; |
| 293 | return [$namespaceName => $contents]; |
| 294 | } |
| 295 | |
| 296 | $result = []; |
| 297 | try { |
| 298 | $ast = $this->getParser()->parse(trim($contents)) ?? []; |
| 299 | } catch (\PhpParser\Error $e) { |
| 300 | $this->logger->error('Parse error: ' . $e->getMessage()); |
| 301 | return []; |
| 302 | } |
| 303 | |
| 304 | foreach ($ast as $rootNode) { |
| 305 | if ($rootNode instanceof Node\Stmt\Namespace_) { |
| 306 | if (is_null($rootNode->name)) { |
| 307 | if (count($ast) === 1) { |
| 308 | $result['\\'] = $contents; |
| 309 | } else { |
| 310 | $result['\\'] = '<?php' . PHP_EOL . PHP_EOL . $this->getPrettyPrinter()->prettyPrintFile($rootNode->stmts); |
| 311 | } |
| 312 | } else { |
| 313 | $namespaceName = $rootNode->name->name; |
| 314 | if (count($ast) === 1) { |
| 315 | $result[$namespaceName] = $contents; |
| 316 | } else { |
| 317 | // This was failing for `phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/FunctionPrefix.php` |
| 318 | $result[$namespaceName] = '<?php' . PHP_EOL . PHP_EOL . 'namespace ' . $namespaceName . ';' . PHP_EOL . PHP_EOL . $this->getPrettyPrinter()->prettyPrintFile($rootNode->stmts); |
| 319 | } |
| 320 | } |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | // TODO: is this necessary? |
| 325 | if (empty($result)) { |
| 326 | $result['\\'] = '<?php' . PHP_EOL . PHP_EOL . $contents; |
| 327 | } |
| 328 | |
| 329 | return $result; |
| 330 | } |
| 331 | |
| 332 | /** |
| 333 | * @param string $fqdnClassname |
| 334 | * @param bool $isAbstract |
| 335 | * @param FileBase $file |
| 336 | * @param ?string $extends |
| 337 | * @param NamespaceSymbol|null $namespace |
| 338 | * @param string[] $interfaces |
| 339 | */ |
| 340 | protected function addDiscoveredClassChange( |
| 341 | string $fqdnClassname, |
| 342 | bool $isAbstract, |
| 343 | FileBase $file, |
| 344 | ?string $extends, |
| 345 | ?NamespaceSymbol $namespace, |
| 346 | array $interfaces |
| 347 | ): ?ClassSymbol { |
| 348 | // TODO: This should be included but marked not to prefix. |
| 349 | if ($this->isBuiltInSymbol($fqdnClassname)) { |
| 350 | $this->logger->debug('Skipping built-in symbol {symbolName}, possible a polyfill.', [ |
| 351 | 'symbolName' => $fqdnClassname, |
| 352 | ]); |
| 353 | return null; |
| 354 | } |
| 355 | |
| 356 | $classSymbol = $this->discoveredSymbols->getClass($fqdnClassname); |
| 357 | if (is_null($classSymbol)) { |
| 358 | $classSymbol = new ClassSymbol($fqdnClassname, $file, $namespace, $isAbstract, $extends, $interfaces); |
| 359 | $this->add($classSymbol, $file); |
| 360 | } |
| 361 | $classSymbol->addSourceFile($file); |
| 362 | if ($file instanceof FileWithDependency) { |
| 363 | $file->addDiscoveredSymbol($classSymbol); |
| 364 | } |
| 365 | return $classSymbol; |
| 366 | } |
| 367 | |
| 368 | protected function addDiscoveredNamespaceChange(string $fqdnNamespace, FileBase $file, ?ComposerPackage $package = null): NamespaceSymbol |
| 369 | { |
| 370 | $namespaceObj = $this->discoveredSymbols->getNamespace($fqdnNamespace); |
| 371 | if (is_null($namespaceObj)) { |
| 372 | $namespaceObj = new NamespaceSymbol($fqdnNamespace, $file); |
| 373 | $this->add($namespaceObj); |
| 374 | } |
| 375 | $namespaceObj->addSourceFile($file); |
| 376 | if ($file instanceof FileWithDependency) { |
| 377 | $file->addDiscoveredSymbol($namespaceObj); |
| 378 | } |
| 379 | return $namespaceObj; |
| 380 | } |
| 381 | |
| 382 | /** |
| 383 | * Get a list of PHP built-in classes etc. so they are not prefixed. |
| 384 | * |
| 385 | * Polyfilled classes were being prefixed, but the polyfills are only active when the PHP version is below X, |
| 386 | * so calls to those prefixed polyfilled classnames would fail on newer PHP versions. |
| 387 | * |
| 388 | * NB: This list is not exhaustive. Any unloaded PHP extensions are not included. |
| 389 | * |
| 390 | * @see https://github.com/BrianHenryIE/strauss/issues/79 |
| 391 | * |
| 392 | * ``` |
| 393 | * array_filter( |
| 394 | * get_declared_classes(), |
| 395 | * function(string $className): bool { |
| 396 | * $reflector = new \ReflectionClass($className); |
| 397 | * return empty($reflector->getFileName()); |
| 398 | * } |
| 399 | * ); |
| 400 | * ``` |
| 401 | * |
| 402 | * @return string[] |
| 403 | */ |
| 404 | protected function getBuiltIns(): array |
| 405 | { |
| 406 | if (empty($this->builtIns)) { |
| 407 | $this->loadBuiltIns(); |
| 408 | } |
| 409 | |
| 410 | return $this->builtIns; |
| 411 | } |
| 412 | |
| 413 | /** |
| 414 | * Load the file containing the built-in PHP classes etc. and flatten to a single array of strings and store. |
| 415 | */ |
| 416 | protected function loadBuiltIns(): void |
| 417 | { |
| 418 | $builtins = include __DIR__ . '/FileSymbol/builtinsymbols.php'; |
| 419 | |
| 420 | $flatArray = array(); |
| 421 | array_walk_recursive( |
| 422 | $builtins, |
| 423 | function ($array) use (&$flatArray) { |
| 424 | if (is_array($array)) { |
| 425 | $flatArray = array_merge($flatArray, array_values($array)); |
| 426 | } else { |
| 427 | $flatArray[] = $array; |
| 428 | } |
| 429 | } |
| 430 | ); |
| 431 | |
| 432 | $this->builtIns = $flatArray; |
| 433 | $this->builtInsLookup = array_fill_keys($this->builtIns, true); |
| 434 | } |
| 435 | |
| 436 | protected function isBuiltInSymbol(string $symbolName): bool |
| 437 | { |
| 438 | if (empty($this->builtInsLookup)) { |
| 439 | $this->loadBuiltIns(); |
| 440 | } |
| 441 | |
| 442 | return isset($this->builtInsLookup[$symbolName]); |
| 443 | } |
| 444 | |
| 445 | protected function getParser(): Parser |
| 446 | { |
| 447 | return $this->parser ??= (new ParserFactory())->createForNewestSupportedVersion(); |
| 448 | } |
| 449 | |
| 450 | protected function getPrettyPrinter(): Standard |
| 451 | { |
| 452 | return $this->prettyPrinter ??= new Standard(); |
| 453 | } |
| 454 | |
| 455 | protected function parsePhpCode(string $contents): ParserContainer |
| 456 | { |
| 457 | $parserContainer = new ParserContainer(); |
| 458 | $visitor = new ASTVisitor($parserContainer); |
| 459 | |
| 460 | $result = PhpCodeParser::process($contents, null, $parserContainer, $visitor); |
| 461 | if ($result instanceof ParserErrorHandler) { |
| 462 | throw new ParserErrorException($result); |
| 463 | } |
| 464 | |
| 465 | $interfaces = $parserContainer->getInterfaces(); |
| 466 | foreach ($interfaces as &$interface) { |
| 467 | $interface->parentInterfaces = $visitor->combineParentInterfaces($interface); |
| 468 | } |
| 469 | unset($interface); |
| 470 | |
| 471 | $classes = &$parserContainer->getClassesByReference(); |
| 472 | foreach ($classes as &$class) { |
| 473 | $class->interfaces = Utils::flattenArray( |
| 474 | $visitor->combineImplementedInterfaces($class), |
| 475 | false |
| 476 | ); |
| 477 | } |
| 478 | unset($class); |
| 479 | |
| 480 | return $parserContainer; |
| 481 | } |
| 482 | |
| 483 | /** |
| 484 | * Collect declared namespaces in source order. Namespace operators (namespace\foo) are ignored. |
| 485 | * |
| 486 | * @return array<int,string|null> Null indicates the explicit global namespace. |
| 487 | */ |
| 488 | protected function getNamespaceDeclarations(string $contents): array |
| 489 | { |
| 490 | $tokens = token_get_all($contents); |
| 491 | |
| 492 | $declarations = []; |
| 493 | $tokenCount = count($tokens); |
| 494 | for ($i = 0; $i < $tokenCount; $i++) { |
| 495 | $token = $tokens[$i]; |
| 496 | |
| 497 | if (!is_array($token) || $token[0] !== T_NAMESPACE) { |
| 498 | continue; |
| 499 | } |
| 500 | |
| 501 | $nextIndex = $this->nextSignificantTokenIndex($tokens, $i + 1); |
| 502 | if (is_null($nextIndex)) { |
| 503 | continue; |
| 504 | } |
| 505 | |
| 506 | $next = $tokens[$nextIndex]; |
| 507 | if (is_string($next) && ($next === ';' || $next === '{')) { |
| 508 | $declarations[] = null; |
| 509 | continue; |
| 510 | } |
| 511 | |
| 512 | $namespaceName = ''; |
| 513 | while (!is_null($nextIndex)) { |
| 514 | $current = $tokens[$nextIndex]; |
| 515 | |
| 516 | if (is_array($current) && $this->isNamespaceNameToken($current[0])) { |
| 517 | $namespaceName .= $current[1]; |
| 518 | $nextIndex = $this->nextSignificantTokenIndex($tokens, $nextIndex + 1); |
| 519 | continue; |
| 520 | } |
| 521 | |
| 522 | if (is_string($current) && $current === '\\') { |
| 523 | $namespaceName .= '\\'; |
| 524 | $nextIndex = $this->nextSignificantTokenIndex($tokens, $nextIndex + 1); |
| 525 | continue; |
| 526 | } |
| 527 | |
| 528 | if (is_string($current) && ($current === ';' || $current === '{')) { |
| 529 | if ($namespaceName !== '') { |
| 530 | $declarations[] = trim($namespaceName, '\\'); |
| 531 | } |
| 532 | } |
| 533 | break; |
| 534 | } |
| 535 | } |
| 536 | |
| 537 | return $declarations; |
| 538 | } |
| 539 | |
| 540 | protected function hasMalformedNamespaceDeclaration(string $contents): bool |
| 541 | { |
| 542 | $tokens = token_get_all($contents); |
| 543 | $tokenCount = count($tokens); |
| 544 | for ($i = 0; $i < $tokenCount; $i++) { |
| 545 | $token = $tokens[$i]; |
| 546 | |
| 547 | if (!is_array($token) || $token[0] !== T_NAMESPACE) { |
| 548 | continue; |
| 549 | } |
| 550 | |
| 551 | $nextIndex = $this->nextSignificantTokenIndex($tokens, $i + 1); |
| 552 | if (is_null($nextIndex)) { |
| 553 | continue; |
| 554 | } |
| 555 | |
| 556 | $next = $tokens[$nextIndex]; |
| 557 | if (is_string($next) && ($next === ';' || $next === '{')) { |
| 558 | continue; |
| 559 | } |
| 560 | |
| 561 | if (is_array($next) && $this->isNamespaceNameToken($next[0])) { |
| 562 | continue; |
| 563 | } |
| 564 | |
| 565 | return true; |
| 566 | } |
| 567 | |
| 568 | return false; |
| 569 | } |
| 570 | |
| 571 | /** |
| 572 | * @param array<int, array<int, mixed>|string> $tokens |
| 573 | */ |
| 574 | protected function nextSignificantTokenIndex(array $tokens, int $start): ?int |
| 575 | { |
| 576 | $tokenCount = count($tokens); |
| 577 | for ($i = $start; $i < $tokenCount; $i++) { |
| 578 | $token = $tokens[$i]; |
| 579 | if (is_array($token) && in_array($token[0], [T_WHITESPACE, T_COMMENT, T_DOC_COMMENT], true)) { |
| 580 | continue; |
| 581 | } |
| 582 | |
| 583 | return $i; |
| 584 | } |
| 585 | |
| 586 | return null; |
| 587 | } |
| 588 | |
| 589 | protected function isNamespaceNameToken(int $tokenType): bool |
| 590 | { |
| 591 | if ($tokenType === T_STRING || $tokenType === T_NS_SEPARATOR) { |
| 592 | return true; |
| 593 | } |
| 594 | |
| 595 | return |
| 596 | (defined('T_NAME_QUALIFIED') && $tokenType === T_NAME_QUALIFIED) |
| 597 | || (defined('T_NAME_FULLY_QUALIFIED') && $tokenType === T_NAME_FULLY_QUALIFIED) |
| 598 | || (defined('T_NAME_RELATIVE') && $tokenType === T_NAME_RELATIVE); |
| 599 | } |
| 600 | } |