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<?php |
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/** |
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* Dependency Injection Container. |
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* |
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* @package zip-ai |
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*/ |
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|
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namespace ZipAI\Classes\Core; |
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|
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defined( 'ABSPATH' ) || exit; |
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|
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/** |
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* Container Class. |
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*/ |
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class Container { |
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|
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/** |
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* The bindings. |
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* |
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* @var array |
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*/ |
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protected $bindings = array(); |
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|
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/** |
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* The shared instances. |
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* |
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* @var array |
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*/ |
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protected $instances = array(); |
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|
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/** |
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* Register a binding with the container. |
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* |
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* @param string $abstract The abstract type or name. |
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* @param mixed $concrete The concrete implementation or closure. |
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* @param bool $shared Whether the binding is shared (singleton). |
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*/ |
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public function bind( $abstract, $concrete = null, $shared = false ) { |
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if ( is_null( $concrete ) ) { |
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$concrete = $abstract; |
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} |
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|
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$this->bindings[ $abstract ] = array( |
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'concrete' => $concrete, |
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'shared' => $shared, |
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); |
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} |
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|
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/** |
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* Register a shared binding in the container. |
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* |
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* @param string $abstract The abstract type or name. |
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* @param mixed $concrete The concrete implementation or closure. |
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*/ |
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public function singleton( $abstract, $concrete = null ) { |
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$this->bind( $abstract, $concrete, true ); |
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} |
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|
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/** |
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* Resolve the given type from the container. |
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* |
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* @param string $abstract The abstract type or name. |
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* @return mixed |
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*/ |
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public function make( $abstract ) { |
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// Return shared instance if it exists. |
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if ( isset( $this->instances[ $abstract ] ) ) { |
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return $this->instances[ $abstract ]; |
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} |
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|
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// If not bound, try to instantiate directly. |
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if ( ! isset( $this->bindings[ $abstract ] ) ) { |
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return new $abstract(); |
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} |
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|
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$concrete = $this->bindings[ $abstract ]['concrete']; |
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$object = null; |
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|
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if ( $concrete instanceof \Closure ) { |
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$object = $concrete( $this ); |
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} else { |
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$object = $this->make( $concrete ); |
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} |
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|
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// Save shared instance. |
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if ( $this->bindings[ $abstract ]['shared'] ) { |
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$this->instances[ $abstract ] = $object; |
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} |
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|
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return $object; |
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} |
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|
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/** |
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* Check if the given abstract type has been bound. |
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* |
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* @param string $abstract The abstract type or name. |
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* @return bool |
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*/ |
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public function has( $abstract ) { |
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return isset( $this->bindings[ $abstract ] ) || isset( $this->instances[ $abstract ] ); |
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} |
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} |
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|
