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<?php declare (strict_types=1); namespace Rector\Php55\Rector\String_; use PhpParser\Node; use PhpParser\Node\Arg; use PhpParser\Node\Expr\ClassConstFetch; use PhpParser\Node\Expr\FuncCall; use PhpParser\Node\Name\FullyQualified; use PhpParser\Node\Scalar\String_; use PhpParser\Node\Stmt\ClassConst; use Rector\Core\Contract\Rector\AllowEmptyConfigurableRectorInterface; use Rector\Core\Rector\AbstractRector; use Rector\Core\ValueObject\PhpVersionFeature; use Rector\NodeTypeResolver\Node\AttributeKey; use Rector\VersionBonding\Contract\MinPhpVersionInterface; use RectorPrefix202208\Symplify\PackageBuilder\Reflection\ClassLikeExistenceChecker; use Symplify\RuleDocGenerator\ValueObject\CodeSample\ConfiguredCodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; use RectorPrefix202208\Webmozart\Assert\Assert; /** * @changelog https://wiki.php.net/rfc/class_name_scalars https://github.com/symfony/symfony/blob/2.8/UPGRADE-2.8.md#form * * @see \Rector\Tests\Php55\Rector\String_\StringClassNameToClassConstantRector\StringClassNameToClassConstantRectorTest */ final class StringClassNameToClassConstantRector extends AbstractRector implements AllowEmptyConfigurableRectorInterface, MinPhpVersionInterface { /** * @var string[] */ private $classesToSkip = [ // can be string 'Error', 'Exception', ]; /** * @readonly * @var \Symplify\PackageBuilder\Reflection\ClassLikeExistenceChecker */ private $classLikeExistenceChecker; public function __construct(ClassLikeExistenceChecker $classLikeExistenceChecker) { $this->classLikeExistenceChecker = $classLikeExistenceChecker; } public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Replace string class names by <class>::class constant', [new ConfiguredCodeSample(<<<'CODE_SAMPLE' class AnotherClass { } class SomeClass { public function run() { return 'AnotherClass'; } } CODE_SAMPLE , <<<'CODE_SAMPLE' class AnotherClass { } class SomeClass { public function run() { return \AnotherClass::class; } } CODE_SAMPLE , ['ClassName', 'AnotherClassName'])]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [String_::class]; } /** * @param String_ $node */ public function refactor(Node $node) : ?Node { $classLikeName = $node->value; // remove leading slash $classLikeName = \ltrim($classLikeName, '\\'); if ($classLikeName === '') { return null; } if ($this->shouldSkip($classLikeName, $node)) { return null; } $fullyQualified = new FullyQualified($classLikeName); return new ClassConstFetch($fullyQualified, 'class'); } /** * @param mixed[] $configuration */ public function configure(array $configuration) : void { Assert::allString($configuration); $this->classesToSkip = $configuration; } public function provideMinPhpVersion() : int { return PhpVersionFeature::CLASSNAME_CONSTANT; } private function isPartOfIsAFuncCall(String_ $string) : bool { $parent = $string->getAttribute(AttributeKey::PARENT_NODE); if (!$parent instanceof Arg) { return \false; } $parentParent = $parent->getAttribute(AttributeKey::PARENT_NODE); if (!$parentParent instanceof FuncCall) { return \false; } return $this->nodeNameResolver->isName($parentParent, 'is_a'); } private function shouldSkip(string $classLikeName, String_ $string) : bool { if (!$this->classLikeExistenceChecker->doesClassLikeInsensitiveExists($classLikeName)) { return \true; } foreach ($this->classesToSkip as $classToSkip) { if ($this->nodeNameResolver->isStringName($classLikeName, $classToSkip)) { return \true; } } if ($this->isPartOfIsAFuncCall($string)) { return \true; } // allow class strings to be part of class const arrays, as probably on purpose $parentClassConst = $this->betterNodeFinder->findParentType($string, ClassConst::class); return $parentClassConst instanceof ClassConst; } }
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