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<?php |
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declare(strict_types=1); |
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/** |
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* This file is part of the Ray.Di package. |
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* |
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* @license http://opensource.org/licenses/MIT MIT |
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*/ |
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namespace Ray\Di; |
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final class Argument implements \Serializable |
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{ |
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/** |
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* @var string |
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*/ |
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private $index; |
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/** |
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* @var bool |
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*/ |
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private $isDefaultAvailable; |
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/** |
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* @var mixed |
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*/ |
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private $default; |
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/** |
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* @var string |
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*/ |
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private $meta; |
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/** |
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* @var \ReflectionParameter |
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*/ |
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private $reflection; |
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public function __construct(\ReflectionParameter $parameter, string $name) |
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{ |
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$type = $this->getType($parameter); |
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$isOptional = $parameter->isOptional(); |
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$this->isDefaultAvailable = $parameter->isDefaultValueAvailable() || $isOptional; |
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if ($isOptional) { |
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$this->default = null; |
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} |
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$this->setDefaultValue($parameter); |
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$this->index = $type . '-' . $name; |
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$this->reflection = $parameter; |
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$this->meta = sprintf( |
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"dependency '%s' with name '%s' used in %s:%d ($%s)", |
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$type, |
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$name, |
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$this->reflection->getDeclaringFunction()->getFileName(), |
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$this->reflection->getDeclaringFunction()->getStartLine(), |
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$parameter->getName() |
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); |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return $this->index; |
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} |
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/** |
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* Return reflection |
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*/ |
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public function get() : \ReflectionParameter |
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{ |
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return $this->reflection; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isDefaultAvailable() : bool |
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{ |
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return $this->isDefaultAvailable; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function getDefaultValue() |
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{ |
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return $this->default; |
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} |
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public function getMeta() : string |
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{ |
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return $this->meta; |
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} |
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public function serialize() : string |
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{ |
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$ref = [ |
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$this->reflection->getDeclaringFunction()->class, |
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$this->reflection->getDeclaringFunction()->name, |
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$this->reflection->getName() |
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]; |
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return \serialize([ |
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$this->index, |
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$this->isDefaultAvailable, |
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$this->default, |
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$this->meta, |
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$ref |
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]); |
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} |
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public function unserialize($serialized) |
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{ |
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list($this->index, |
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$this->isDefaultAvailable, |
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$this->default, |
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$this->meta, |
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$ref |
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) = unserialize($serialized); |
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$this->reflection = new \ReflectionParameter([$ref[0], $ref[1]], $ref[2]); |
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} |
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private function setDefaultValue(\ReflectionParameter $parameter) |
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{ |
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if (! $this->isDefaultAvailable) { |
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return; |
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} |
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try { |
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$this->default = $parameter->getDefaultValue(); |
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} /* @noinspection PhpRedundantCatchClauseInspection */ catch (\ReflectionException $e) { |
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// probably it is internal class like \PDO |
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$this->default = null; |
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} |
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} |
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private function getType(\ReflectionParameter $parameter) : string |
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{ |
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$type = $parameter->getType(); |
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if ($type instanceof \ReflectionType && \in_array((string) $type, ['bool', 'int', 'string', 'array', 'resource', 'callable'], true)) { |
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return ''; |
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} |
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return (string) $type; |
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} |
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} |
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