*/ class FetchingClassConstOfDeprecatedClassRule implements \PHPStan\Rules\Rule { /** @var ReflectionProvider */ private $reflectionProvider; /** @var RuleLevelHelper */ private $ruleLevelHelper; public function __construct(ReflectionProvider $reflectionProvider, RuleLevelHelper $ruleLevelHelper) { $this->reflectionProvider = $reflectionProvider; $this->ruleLevelHelper = $ruleLevelHelper; } public function getNodeType(): string { return ClassConstFetch::class; } public function processNode(Node $node, Scope $scope): array { if (DeprecatedScopeHelper::isScopeDeprecated($scope)) { return []; } if (!$node->name instanceof Identifier) { return []; } $constantName = $node->name->name; $referencedClasses = []; if ($node->class instanceof Name) { $referencedClasses[] = $scope->resolveName($node->class); } else { $classTypeResult = $this->ruleLevelHelper->findTypeToCheck( $scope, $node->class, '', // We don't care about the error message function (Type $type) use ($constantName): bool { return $type->canAccessConstants()->yes() && $type->hasConstant($constantName)->yes(); } ); if ($classTypeResult->getType() instanceof ErrorType) { return []; } $referencedClasses = $classTypeResult->getReferencedClasses(); } $errors = []; foreach ($referencedClasses as $referencedClass) { try { $class = $this->reflectionProvider->getClass($referencedClass); } catch (\PHPStan\Broker\ClassNotFoundException $e) { continue; } if ($class->isDeprecated()) { $classDescription = $class->getDeprecatedDescription(); if ($classDescription === null) { $errors[] = sprintf( 'Fetching class constant %s of deprecated class %s.', $constantName, $referencedClass ); } else { $errors[] = sprintf( "Fetching class constant %s of deprecated class %s:\n%s", $constantName, $referencedClass, $classDescription ); } } if (strtolower($constantName) === 'class') { continue; } if (!$class->hasConstant($constantName)) { continue; } $constantReflection = $class->getConstant($constantName); if (!$constantReflection->isDeprecated()->yes()) { continue; } $description = $constantReflection->getDeprecatedDescription(); if ($description === null) { $errors[] = sprintf( 'Fetching deprecated class constant %s of class %s.', $constantName, $referencedClass ); } else { $errors[] = sprintf( "Fetching deprecated class constant %s of class %s:\n%s", $constantName, $referencedClass, $description ); } } return $errors; } }