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<?php |
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/** |
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* This file is part of Railt package. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Railt\Reflection; |
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use Railt\Reflection\Common\Serializable; |
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use Railt\Reflection\Contracts\Type as TypeInterface; |
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/** |
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* Class Type |
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*/ |
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class Type implements TypeInterface |
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{ |
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use Serializable; |
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/** |
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* @var Type[] |
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*/ |
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private static $instances = []; |
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/** |
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* @var array[]|string[][] |
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*/ |
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private static $inheritance = []; |
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/** |
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* @var array|string[] |
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*/ |
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private $parent; |
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/** |
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* @var string |
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*/ |
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protected $name; |
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/** |
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* BaseType constructor. |
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* @param string $name |
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*/ |
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private function __construct(string $name) |
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{ |
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\assert(\in_array($name, \array_merge(static::DEPENDENT_TYPES, static::ROOT_TYPES), true)); |
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$this->name = $name; |
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$this->parent = $this->getInheritanceSequence($name); |
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} |
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/** |
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* @param string $name |
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* @return array |
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*/ |
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private function getInheritanceSequence(string $name): array |
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{ |
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if (self::$inheritance === []) { |
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$this->bootInheritance(new \SplStack(), static::INHERITANCE_TREE); |
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} |
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return self::$inheritance[$name] ?? [static::ROOT_TYPE]; |
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} |
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/** |
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* @param \SplStack $stack |
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* @param array $children |
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*/ |
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private function bootInheritance(\SplStack $stack, array $children = []): void |
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{ |
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$push = function (string $type) use ($stack): void { |
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self::$inheritance[$type] = \array_values(\iterator_to_array($stack)); |
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self::$inheritance[$type][] = static::ROOT_TYPE; |
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$stack->push($type); |
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}; |
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foreach ($children as $type => $child) { |
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switch (true) { |
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case \is_string($child): |
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$push($child); |
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break; |
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case \is_array($child): |
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$push($type); |
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$this->bootInheritance($stack, $child); |
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break; |
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} |
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$stack->pop(); |
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} |
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} |
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/** |
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* @param string $type |
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* @return Type |
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*/ |
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public static function of(string $type): Type |
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{ |
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return self::$instances[$type] ?? (self::$instances[$type] = new static($type)); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isDependent(): bool |
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{ |
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return \in_array($this->name, static::DEPENDENT_TYPES, true); |
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} |
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/** |
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* @param TypeInterface $type |
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* @return bool |
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*/ |
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130 |
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public function instanceOf(TypeInterface $type): bool |
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{ |
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$needle = $type->getName(); |
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return $this->is($needle) || \in_array($needle, $this->parent, true); |
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} |
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/** |
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* @param string $type |
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* @return bool |
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*/ |
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public function is(string $type): bool |
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{ |
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return $this->getName() === $type; |
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} |
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/** |
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* @return string |
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*/ |
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130 |
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public function getName(): string |
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{ |
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return $this->name; |
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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(): string |
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{ |
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return $this->getName(); |
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} |
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} |
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railt /
reflection
