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<?php |
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declare(strict_types=1); |
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namespace Zalas\PHPUnit\Doubles\PhpDocumentor; |
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use phpDocumentor\Reflection\DocBlock; |
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use phpDocumentor\Reflection\DocBlock\Tag; |
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use phpDocumentor\Reflection\DocBlock\Tags\Var_; |
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use phpDocumentor\Reflection\DocBlockFactory; |
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use phpDocumentor\Reflection\Types\Context; |
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use phpDocumentor\Reflection\Types\ContextFactory; |
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use Zalas\PHPUnit\Doubles\Extractor\Extractor; |
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use Zalas\PHPUnit\Doubles\Extractor\Property; |
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final class ReflectionExtractor implements Extractor |
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{ |
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/** |
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* @param object $object |
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* @param callable $filter |
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* |
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* @return Property[] |
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*/ |
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public function extract(/*object */$object, callable $filter): array |
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{ |
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return $this->extractFromReflection(new \ReflectionClass($object), $filter); |
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} |
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/** |
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* @return Property[] |
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*/ |
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private function extractFromReflection(\ReflectionClass $class, callable $filter): array |
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{ |
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$properties = $this->mapClassToProperties($class, $filter); |
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$parentProperties = $class->getParentClass() ? $this->extractFromReflection($class->getParentClass(), $filter) : []; |
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return \array_merge($properties, $parentProperties); |
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} |
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/** |
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* @return Property[] |
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*/ |
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private function mapClassToProperties(\ReflectionClass $class, callable $filter): array |
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{ |
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$docBlockFactory = DocBlockFactory::createInstance(); |
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$classContext = (new ContextFactory())->createFromReflector($class); |
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return \array_filter( |
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\array_map($this->propertyFactory($class, $docBlockFactory, $classContext), $class->getProperties()), |
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$this->buildFilter($filter) |
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); |
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} |
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private function propertyFactory(\ReflectionClass $class, $docBlockFactory, $classContext): callable |
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{ |
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return function (\ReflectionProperty $propertyReflection) use ($docBlockFactory, $classContext, $class): ?Property { |
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$context = $this->getTraitContextIfExists($propertyReflection) ?? $classContext; |
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if ($propertyReflection->getDeclaringClass()->getName() === $class->getName()) { |
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return $this->createProperty($propertyReflection, $docBlockFactory, $context); |
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} |
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return null; |
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}; |
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} |
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private function buildFilter(callable $filter): callable |
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{ |
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return function ($property) use ($filter): bool { |
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return $property instanceof Property && $filter($property); |
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}; |
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} |
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private function getTraitContextIfExists(\ReflectionProperty $propertyReflection): ?Context |
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{ |
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foreach ($propertyReflection->getDeclaringClass()->getTraits() as $trait) { |
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if ($trait->hasProperty($propertyReflection->getName())) { |
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return (new ContextFactory())->createFromReflector($trait); |
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} |
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} |
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return null; |
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} |
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private function createProperty(\ReflectionProperty $propertyReflection, DocBlockFactory $docBlockFactory, Context $context): ?Property |
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{ |
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if ($propertyReflection->getDocComment()) { |
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$var = $this->extractVar($docBlockFactory->create($propertyReflection, $context)); |
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return null !== $var ? new Property( |
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$propertyReflection->getName(), |
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\array_map( |
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function ($type) { |
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return \ltrim($type, '\\'); |
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}, |
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\explode('|', $var) |
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) |
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) : null; |
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} |
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return null; |
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} |
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private function extractVar(DocBlock $docBlock): ?string |
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{ |
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$var = $this->getFirstTag($docBlock, 'var'); |
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return $var instanceof Var_ ? (string) $var->getType() : null; |
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} |
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private function getFirstTag(DocBlock $docBlock, string $name): ?Tag |
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{ |
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$tags = $docBlock->getTagsByName($name); |
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return $tags[0] ?? null; |
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} |
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} |
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jakzal /
phpunit-doubles
