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<?php |
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namespace Thr; |
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/** |
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* Class TypeHintReader |
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* @package Thr |
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*/ |
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class TypeHintReader implements TypeReader |
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{ |
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private $class; |
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/** |
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* TypeHintReader constructor. |
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* @param \ReflectionClass $class |
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*/ |
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public function __construct(\ReflectionClass $class) |
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{ |
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$this->class = $class; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getReflectionType(string $propertyName): \ReflectionType |
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{ |
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$reflectionType = $this->getReflectionParameter($propertyName) |
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->getType(); |
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if ($reflectionType === null) { |
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throw TypeHintReaderException::withoutTypeHint($propertyName); |
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} |
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return $reflectionType; |
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} |
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private function getReflectionParameter( |
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string $propertyName |
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): \ReflectionParameter { |
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return $this->getReflectionPropertyBySetter($propertyName) |
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?? $this->getReflectionPropertyByConstruct($propertyName); |
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} |
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private function getReflectionPropertyBySetter( |
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string $propertyName |
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): ?\ReflectionParameter { |
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$nameSetter = 'set'.ucfirst($propertyName); |
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if ($this->class->hasMethod($nameSetter)) { |
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$methodSetter = $this->class->getMethod($nameSetter); |
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return $methodSetter->getParameters()[0]; |
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} |
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return null; |
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} |
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private function getReflectionPropertyByConstruct( |
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string $propertyName |
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): \ReflectionParameter { |
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$constructor = $this->class->getConstructor(); |
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$parameter = $this->getParameter($propertyName, $constructor); |
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if ($parameter instanceof \ReflectionParameter) { |
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return $parameter; |
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} |
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throw TypeHintReaderException::invalidPropertyName($propertyName); |
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} |
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private function getParameter( |
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string $propertyName, |
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\ReflectionMethod $constructor |
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): ?\ReflectionParameter { |
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foreach ($constructor->getParameters() as $parameter) { |
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if ($parameter->getName() === $propertyName) { |
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return $parameter; |
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} |
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} |
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return null; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getTypeName(string $propertyName): string |
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{ |
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return $this->getReflectionType($propertyName)->getName(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function typeAllowNull(string $propertyName): bool |
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{ |
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return $this->getReflectionType($propertyName)->allowsNull(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function typeIsBuiltin(string $propertyName): bool |
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{ |
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return $this->getReflectionType($propertyName)->isBuiltin(); |
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} |
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/** |
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* @param string $class |
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* @return TypeHintReader |
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* @throws TypeHintReaderException |
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* @throws \ReflectionException |
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*/ |
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public static function byClassName(string $class): self |
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{ |
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if (!class_exists($class)) { |
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throw TypeHintReaderException::notExistsClass($class); |
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} |
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return new self(new \ReflectionClass($class)); |
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} |
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} |
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JamieYnonan /
type-hint-reader
