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<?php |
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/** |
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* @package WPEmerge |
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* @author Atanas Angelov <[email protected]> |
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* @copyright 2017-2019 Atanas Angelov |
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* @license https://www.gnu.org/licenses/gpl-2.0.html GPL-2.0 |
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* @link https://wpemerge.com/ |
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*/ |
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namespace WPEmerge\Application; |
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use Closure; |
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use BadMethodCallException; |
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use WPEmerge\Support\Arr; |
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/** |
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* Add methods to classes at runtime. |
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* Loosely based on spatie/macroable. |
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* |
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* @codeCoverageIgnore |
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*/ |
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trait HasAliasesTrait { |
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/** |
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* Registered aliases. |
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* |
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* @var array<string, array> |
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*/ |
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protected $aliases = []; |
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/** |
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* Get whether an alias is registered. |
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* |
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* @param string $alias |
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* @return boolean |
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*/ |
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public function hasAlias( $alias ) { |
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return isset( $this->aliases[ $alias ] ); |
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} |
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/** |
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* Get a registered alias. |
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* |
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* @param string $alias |
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* @return array|null |
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*/ |
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public function getAlias( $alias ) { |
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if ( ! $this->hasAlias( $alias ) ) { |
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return null; |
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} |
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return $this->aliases[ $alias ]; |
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} |
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/** |
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* Register an alias. |
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* Useful when passed the return value of getAlias() to restore |
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* a previously registered alias, for example. |
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* |
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* @param array<string, mixed> $alias |
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* @return void |
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*/ |
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public function setAlias( $alias ) { |
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$name = Arr::get( $alias, 'name' ); |
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$this->aliases[ $name ] = [ |
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'name' => $name, |
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'target' => Arr::get( $alias, 'target' ), |
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'method' => Arr::get( $alias, 'method', '' ), |
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]; |
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} |
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/** |
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* Register an alias. |
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* Identical to setAlias but with a more user-friendly interface. |
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* |
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* @codeCoverageIgnore |
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* @param string $alias |
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* @param string|Closure $target |
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* @param string $method |
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* @return void |
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*/ |
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public function alias( $alias, $target, $method = '' ) { |
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$this->setAlias( [ |
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'name' => $alias, |
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'target' => $target, |
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'method' => $method, |
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] ); |
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} |
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/** |
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* Call alias if registered. |
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* |
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* @param string $method |
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* @param array $parameters |
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* @return mixed |
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*/ |
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public function __call( $method, $parameters ) { |
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if ( ! $this->hasAlias( $method ) ) { |
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throw new BadMethodCallException( "Method {$method} does not exist." ); |
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} |
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$alias = $this->aliases[ $method ]; |
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if ( $alias['target'] instanceof Closure ) { |
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return call_user_func_array( $alias['target']->bindTo( $this, static::class ), $parameters ); |
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} |
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$target = $this->resolve( $alias['target'] ); |
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if ( ! empty( $alias['method'] ) ) { |
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return call_user_func_array( [$target, $alias['method']], $parameters ); |
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} |
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return $target; |
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} |
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/** |
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* Resolve a dependency from the IoC container. |
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* |
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* @param string $key |
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* @return mixed|null |
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*/ |
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abstract public function resolve( $key ); |
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} |
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