function ImplementationOfDeprecatedInterfaceRule::processNode

File

vendor/phpstan/phpstan-deprecation-rules/src/Rules/Deprecations/ImplementationOfDeprecatedInterfaceRule.php, line 37

Class

ImplementationOfDeprecatedInterfaceRule

@implements Rule<Class_>

Namespace

PHPStan\Rules\Deprecations

Code

public function processNode(Node $node, Scope $scope) : array {
    if ($this->deprecatedScopeHelper
        ->isScopeDeprecated($scope)) {
        return [];
    }
    $errors = [];
    $className = isset($node->namespacedName) ? (string) $node->namespacedName : (string) $node->name;
    try {
        $class = $this->reflectionProvider
            ->getClass($className);
    } catch (ClassNotFoundException $e) {
        return [];
    }
    if ($class->isDeprecated()) {
        return [];
    }
    foreach ($node->implements as $implement) {
        $interfaceName = (string) $implement;
        try {
            $interface = $this->reflectionProvider
                ->getClass($interfaceName);
            if ($interface->isDeprecated()) {
                $description = $interface->getDeprecatedDescription();
                if (!$class->isAnonymous()) {
                    if ($description === null) {
                        $errors[] = RuleErrorBuilder::message(sprintf('Class %s implements deprecated interface %s.', $className, $interfaceName))->identifier('class.implementsDeprecatedInterface')
                            ->build();
                    }
                    else {
                        $errors[] = RuleErrorBuilder::message(sprintf("Class %s implements deprecated interface %s:\n%s", $className, $interfaceName, $description))->identifier('class.implementsDeprecatedInterface')
                            ->build();
                    }
                }
                else {
                    if ($description === null) {
                        $errors[] = RuleErrorBuilder::message(sprintf('Anonymous class implements deprecated interface %s.', $interfaceName))->identifier('class.implementsDeprecatedInterface')
                            ->build();
                    }
                    else {
                        $errors[] = RuleErrorBuilder::message(sprintf("Anonymous class implements deprecated interface %s:\n%s", $interfaceName, $description))->identifier('class.implementsDeprecatedInterface')
                            ->build();
                    }
                }
            }
        } catch (ClassNotFoundException $e) {
            // Other rules will notify if the interface is not found
        }
    }
    return $errors;
}