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<?php |
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/** |
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* Spiral Framework. |
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* |
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* @license MIT |
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* @author Anton Titov (Wolfy-J) |
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*/ |
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declare(strict_types=1); |
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namespace Spiral\Reactor\Traits; |
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/** |
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* Provide ability to declared namespace uses. |
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*/ |
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trait UsesTrait |
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{ |
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/** |
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* @var array |
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*/ |
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private $uses = []; |
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/** |
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* @param string $class |
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* |
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* @return bool |
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*/ |
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public function uses(string $class): bool |
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{ |
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$class = ltrim($class, '\\'); |
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return array_key_exists($class, $this->uses); |
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} |
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/** |
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* Declare uses in a form of array [class => alias|null]. Existed uses will be dropped. |
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* |
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* @param array $uses |
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* |
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* @return self |
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*/ |
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public function setUses(array $uses): self |
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{ |
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$this->uses = []; |
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return $this->addUses($uses); |
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} |
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/** |
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* Add additional set of uses. |
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* |
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* @param array $uses |
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* |
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* @return self |
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*/ |
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public function addUses(array $uses): self |
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{ |
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foreach ($uses as $class => $alias) { |
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$this->addUse($class, $alias); |
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} |
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return $this; |
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} |
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/** |
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* @param string $class |
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* @param string $alias Optional. |
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* |
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* @return self |
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*/ |
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public function addUse(string $class, string $alias = null): self |
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{ |
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$this->uses[ltrim($class, '\\')] = $alias; |
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return $this; |
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} |
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/** |
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* @param string $class |
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* |
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* @return self |
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*/ |
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public function removeUse(string $class): self |
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{ |
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unset($this->uses[ltrim($class, '\\')]); |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function getUses(): array |
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{ |
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return $this->uses; |
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} |
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/** |
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* @param string $string |
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* @param int $indent |
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* |
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* @return string |
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*/ |
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abstract protected function addIndent(string $string, int $indent = 0): string; |
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/** |
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* @param int $indentLevel |
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* |
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* @return string |
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*/ |
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private function renderUses(int $indentLevel = 0): string |
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{ |
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$lines = []; |
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foreach ($this->getUses() as $class => $alias) { |
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$line = "use {$class}"; |
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if (!empty($alias)) { |
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$line .= " as {$alias};"; |
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} else { |
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$line .= ';'; |
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} |
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$lines[] = $this->addIndent($line, $indentLevel); |
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} |
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return implode("\n", $lines); |
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} |
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} |
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spiral /
framework
