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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 function class_exists; |
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use function is_callable; |
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use function is_object; |
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use function is_string; |
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/** |
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* Resolves abstract types to concrete implementations using bindings. |
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*/ |
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final class BindingResolver |
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{ |
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/** |
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* @param array<class-string, class-string|callable|object> $bindings |
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*/ |
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public function __construct( |
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private array $bindings = [], |
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) { |
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} |
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/** |
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* Resolve a class to a concrete instance using bindings. |
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*/ |
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public function resolve(string $class, DependencyCacheManager $cacheManager): ?object |
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{ |
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if (isset($this->bindings[$class])) { |
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$binding = $this->bindings[$class]; |
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if (is_callable($binding)) { |
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/** @var mixed $binding */ |
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$binding = $binding(); |
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} |
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if (is_object($binding)) { |
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return $binding; |
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} |
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/** @var class-string $binding */ |
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if (class_exists($binding)) { |
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return $cacheManager->instantiate($binding); |
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} |
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} |
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if (class_exists($class)) { |
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return $cacheManager->instantiate($class); |
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} |
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return null; |
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} |
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/** |
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* Check if a binding exists for a class. |
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*/ |
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public function hasBinding(string $class): bool |
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{ |
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return isset($this->bindings[$class]); |
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} |
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/** |
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* Get all bindings. |
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* |
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* @return array<class-string, class-string|callable|object> |
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*/ |
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public function getBindings(): array |
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{ |
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return $this->bindings; |
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} |
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/** |
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* Resolve a type name to its concrete implementation (for dependency analysis). |
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* |
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* @param class-string $typeName |
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* |
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* @return class-string |
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*/ |
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public function resolveType(string $typeName): string |
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{ |
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if (isset($this->bindings[$typeName])) { |
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$binding = $this->bindings[$typeName]; |
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if (is_string($binding) && class_exists($binding)) { |
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/** @var class-string */ |
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return $binding; |
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} |
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} |
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return $typeName; |
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} |
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} |
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gacela-project /
container
