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<?php |
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declare(strict_types=1); |
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namespace Gacela\Container; |
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use RuntimeException; |
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use function is_array; |
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/** |
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* Builder for creating contextual bindings. |
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* Allows different concrete implementations based on the requesting class. |
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*/ |
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final class ContextualBindingBuilder |
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{ |
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/** @var list<class-string> */ |
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private array $concrete = []; |
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private ?string $needs = null; |
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/** |
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* @param array<string, array<class-string, class-string|callable|object>> $contextualBindings |
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*/ |
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public function __construct( |
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private array &$contextualBindings, |
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) { |
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} |
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/** |
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* Define which class(es) this binding applies to. |
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* |
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* @param class-string|list<class-string> $concrete |
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*/ |
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public function when(string|array $concrete): self |
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{ |
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$this->concrete = is_array($concrete) ? $concrete : [$concrete]; |
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return $this; |
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} |
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/** |
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* Define which dependency to bind. |
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* |
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* @param class-string $abstract |
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*/ |
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public function needs(string $abstract): self |
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{ |
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$this->needs = $abstract; |
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return $this; |
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} |
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/** |
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* Define what to give when the dependency is needed. |
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* |
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* @param class-string|callable|object $implementation |
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*/ |
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public function give(mixed $implementation): void |
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{ |
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if ($this->needs === null) { |
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throw new RuntimeException('Must call needs() before give()'); |
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} |
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foreach ($this->concrete as $concreteClass) { |
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if (!isset($this->contextualBindings[$concreteClass])) { |
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/** @psalm-suppress PropertyTypeCoercion */ |
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$this->contextualBindings[$concreteClass] = []; |
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} |
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/** |
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* @psalm-suppress PropertyTypeCoercion |
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* |
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* @phpstan-ignore assign.propertyType |
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*/ |
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$this->contextualBindings[$concreteClass][$this->needs] = $implementation; |
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} |
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} |
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} |
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gacela-project /
container
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