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<?php |
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/** |
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* This file is part of the Composite Utils package. |
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* |
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* (c) Emily Shepherd <[email protected]> |
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* |
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* For the full copyright and license information, please view the |
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* LICENSE.md file that was distributed with this source code. |
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* |
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* @package spaark/composite-utils |
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* @author Emily Shepherd <[email protected]> |
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* @license MIT |
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*/ |
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namespace Spaark\CompositeUtils\Service; |
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use Spaark\CompositeUtils\Model\Reflection\Type\ObjectType; |
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use Spaark\CompositeUtils\Model\Reflection\Type\MixedType; |
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use Spaark\CompositeUtils\Model\Reflection\Type\AbstractType; |
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use Spaark\CompositeUtils\Model\Reflection\Type\ScalarType; |
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use Spaark\CompositeUtils\Model\Reflection\Type\NullType; |
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/** |
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* Compares two AbstractTypes to check if they are compatible |
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*/ |
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class TypeComparator |
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{ |
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/** |
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* Compares two AbstractTypes, ensuring they are compatible |
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* |
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* @param AbstractType $parent |
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* @param AbstractType $child |
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* @return boolean |
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*/ |
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public function compatible |
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( |
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AbstractType $parent, |
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AbstractType $child |
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) |
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: bool |
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{ |
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if |
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( |
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($child instanceof NullType && $parent->nullable) || |
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($parent instanceof MixedType) |
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) |
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{ |
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return true; |
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} |
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elseif ($parent instanceof ScalarType) |
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{ |
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return get_class($parent) === get_class($child); |
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} |
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elseif ($parent instanceof ObjectType) |
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{ |
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if |
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( |
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$child instanceof ObjectType && |
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is_a |
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( |
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$child->classname->__toString(), |
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$parent->classname->__toString(), |
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true |
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) |
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) |
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{ |
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return true; |
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} |
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return false; |
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} |
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throw new \DomainException |
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( |
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'Unknown type: ' . get_class($parent) |
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); |
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} |
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} |
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spaark /
composite-utils
