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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 phpDocumentor. |
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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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* @link http://phpdoc.org |
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*/ |
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namespace phpDocumentor\Reflection\Types; |
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use ArrayIterator; |
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use InvalidArgumentException; |
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use IteratorAggregate; |
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use phpDocumentor\Reflection\Type; |
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use function implode; |
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/** |
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* Value Object representing a Compound Type. |
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* |
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* A Compound Type is not so much a special keyword or object reference but is a series of Types that are separated |
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* using an OR operator (`|`). This combination of types signifies that whatever is associated with this compound type |
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* may contain a value with any of the given types. |
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*/ |
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final class Compound implements Type, IteratorAggregate |
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{ |
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/** @var Type[] */ |
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private $types = []; |
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/** |
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* Initializes a compound type (i.e. `string|int`) and tests if the provided types all implement the Type interface. |
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* |
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* @param Type[] $types |
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*/ |
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public function __construct(array $types) |
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{ |
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foreach ($types as $type) { |
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$this->add($type); |
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} |
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} |
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2 |
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2 |
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/** |
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* Returns the type at the given index. |
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*/ |
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public function get(int $index) : ?Type |
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1 |
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{ |
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if (!$this->has($index)) { |
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return null; |
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} |
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return $this->types[$index]; |
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2 |
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} |
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2 |
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/** |
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1 |
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* Tests if this compound type has a type with the given index. |
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*/ |
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public function has(int $index) : bool |
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1 |
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{ |
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return isset($this->types[$index]); |
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} |
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/** |
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* Tests if this compound type contains the given type. |
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2 |
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*/ |
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public function contains(Type $type): bool |
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2 |
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{ |
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foreach ($this->types as $typePart) { |
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// if the type is duplicate; do not add it |
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if ((string) $typePart === (string) $type) { |
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return true; |
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} |
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1 |
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} |
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1 |
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return false; |
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} |
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/** |
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* Returns a rendered output of the Type as it would be used in a DocBlock. |
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*/ |
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1 |
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public function __toString() : string |
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{ |
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return implode('|', $this->types); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getIterator() |
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{ |
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return new ArrayIterator($this->types); |
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} |
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private function add(Type $type): void |
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{ |
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// if the type is duplicate; do not add it |
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if ($this->contains($type)) { |
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return; |
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} |
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$this->types[] = $type; |
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} |
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} |
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phpDocumentor /
TypeResolver
