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<?php declare (strict_types=1); namespace Rector\CodingStyle\Rector\MethodCall; use PhpParser\Node; use PhpParser\Node\Expr\MethodCall; use PhpParser\Node\Expr\StaticCall; use PhpParser\Node\Expr\Variable; use PhpParser\Node\Stmt\ClassMethod; use PHPStan\Type\ObjectType; use Rector\CodingStyle\Enum\PreferenceSelfThis; use Rector\Core\Contract\Rector\ConfigurableRectorInterface; use Rector\Core\Enum\ObjectReference; use Rector\Core\PhpParser\AstResolver; use Rector\Core\Rector\AbstractRector; use Symplify\RuleDocGenerator\ValueObject\CodeSample\ConfiguredCodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; use RectorPrefix202208\Webmozart\Assert\Assert; /** * @see \Rector\Tests\CodingStyle\Rector\MethodCall\PreferThisOrSelfMethodCallRector\PreferThisOrSelfMethodCallRectorTest */ final class PreferThisOrSelfMethodCallRector extends AbstractRector implements ConfigurableRectorInterface { /** * @var string */ private const THIS = 'this'; /** * @var array<string, PreferenceSelfThis::*> */ private $typeToPreference = []; /** * @readonly * @var \Rector\Core\PhpParser\AstResolver */ private $astResolver; public function __construct(AstResolver $astResolver) { $this->astResolver = $astResolver; } public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Changes $this->... and static:: to self:: or vise versa for given types', [new ConfiguredCodeSample(<<<'CODE_SAMPLE' use PHPUnit\Framework\TestCase; final class SomeClass extends TestCase { public function run() { $this->assertEquals('a', 'a'); } } CODE_SAMPLE , <<<'CODE_SAMPLE' use PHPUnit\Framework\TestCase; final class SomeClass extends TestCase { public function run() { self::assertEquals('a', 'a'); } } CODE_SAMPLE , ['PHPUnit\\Framework\\TestCase' => PreferenceSelfThis::PREFER_SELF])]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [MethodCall::class, StaticCall::class]; } /** * @param MethodCall|StaticCall $node */ public function refactor(Node $node) : ?Node { foreach ($this->typeToPreference as $type => $preference) { if (!$this->nodeTypeResolver->isMethodStaticCallOrClassMethodObjectType($node, new ObjectType($type))) { continue; } if ($preference === PreferenceSelfThis::PREFER_SELF) { return $this->processToSelf($node); } return $this->processToThis($node); } return null; } /** * @param mixed[] $configuration */ public function configure(array $configuration) : void { Assert::allString(\array_keys($configuration)); Assert::allString($configuration); Assert::allOneOf($configuration, [PreferenceSelfThis::PREFER_THIS, PreferenceSelfThis::PREFER_SELF]); $this->typeToPreference = $configuration; } /** * @param \PhpParser\Node\Expr\MethodCall|\PhpParser\Node\Expr\StaticCall $node */ private function processToSelf($node) : ?StaticCall { if ($node instanceof StaticCall && !$this->isNames($node->class, [ObjectReference::SELF, ObjectReference::STATIC])) { return null; } if ($node instanceof MethodCall && !$this->isName($node->var, self::THIS)) { return null; } $classMethod = $this->astResolver->resolveClassMethodFromCall($node); if ($classMethod instanceof ClassMethod && !$classMethod->isStatic()) { return null; } $name = $this->getName($node->name); if ($name === null) { return null; } return $this->nodeFactory->createStaticCall(ObjectReference::SELF, $name, $node->args); } /** * @param \PhpParser\Node\Expr\MethodCall|\PhpParser\Node\Expr\StaticCall $node */ private function processToThis($node) : ?MethodCall { if ($node instanceof MethodCall) { return null; } if (!$this->isNames($node->class, [ObjectReference::SELF, ObjectReference::STATIC])) { return null; } $name = $this->getName($node->name); if ($name === null) { return null; } // avoid adding dynamic method call to static method $classMethod = $this->betterNodeFinder->findParentByTypes($node, [ClassMethod::class]); if (!$classMethod instanceof ClassMethod) { return $this->nodeFactory->createMethodCall(new Variable(self::THIS), $name, $node->args); } if (!$classMethod->isStatic()) { return $this->nodeFactory->createMethodCall(new Variable(self::THIS), $name, $node->args); } return null; } }
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