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<?php |
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|
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declare(strict_types=1); |
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|
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namespace WPMU_DEV\Defender\Vendor\DI\Definition\Source; |
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|
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use WPMU_DEV\Defender\Vendor\DI\Definition\Definition; |
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use WPMU_DEV\Defender\Vendor\DI\Definition\ExtendsPreviousDefinition; |
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|
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/** |
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* Manages a chain of other definition sources. |
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* |
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* @author Matthieu Napoli <[email protected]> |
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*/ |
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class SourceChain implements DefinitionSource, MutableDefinitionSource |
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{ |
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private ?MutableDefinitionSource $mutableSource; |
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|
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/** |
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* @param list<DefinitionSource> $sources |
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*/ |
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public function __construct( |
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private array $sources, |
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) { |
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} |
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|
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/** |
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* @param int $startIndex Use this parameter to start looking from a specific |
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* point in the source chain. |
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*/ |
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public function getDefinition(string $name, int $startIndex = 0) : ?Definition |
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{ |
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$count = count($this->sources); |
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for ($i = $startIndex; $i < $count; ++$i) { |
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$source = $this->sources[$i]; |
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|
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$definition = $source->getDefinition($name); |
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|
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if ($definition) { |
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if ($definition instanceof ExtendsPreviousDefinition) { |
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$this->resolveExtendedDefinition($definition, $i); |
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} |
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|
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return $definition; |
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} |
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} |
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|
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return null; |
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} |
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|
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public function getDefinitions() : array |
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{ |
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$allDefinitions = array_merge(...array_map(fn ($source) => $source->getDefinitions(), $this->sources)); |
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|
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/** @var string[] $allNames */ |
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$allNames = array_keys($allDefinitions); |
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|
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$allValues = array_filter(array_map(fn ($name) => $this->getDefinition($name), $allNames)); |
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|
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return array_combine($allNames, $allValues); |
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} |
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|
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public function addDefinition(Definition $definition) : void |
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{ |
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if (! $this->mutableSource) { |
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throw new \LogicException("The container's definition source has not been initialized correctly"); |
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} |
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|
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$this->mutableSource->addDefinition($definition); |
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} |
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|
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private function resolveExtendedDefinition(ExtendsPreviousDefinition $definition, int $currentIndex) |
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{ |
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// Look in the next sources only (else infinite recursion, and we can only extend |
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// entries defined in the previous definition files - a previous == next here because |
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// the array was reversed ;) ) |
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$subDefinition = $this->getDefinition($definition->getName(), $currentIndex + 1); |
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|
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if ($subDefinition) { |
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$definition->setExtendedDefinition($subDefinition); |
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} |
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} |
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|
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public function setMutableDefinitionSource(MutableDefinitionSource $mutableSource) : void |
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{ |
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$this->mutableSource = $mutableSource; |
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|
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array_unshift($this->sources, $mutableSource); |
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} |
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} |
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|
