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<?php |
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|
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namespace FluentCommunity\Framework\Support; |
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|
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use Closure; |
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use FluentCommunity\Framework\Support\HigherOrderWhenProxy; |
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|
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trait Conditionable |
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{ |
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/** |
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* Apply the callback if the given "value" is (or resolves to) truthy. |
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* |
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* @template TWhenParameter |
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* @template TWhenReturnType |
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* |
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* @param (\Closure($this): TWhenParameter)|TWhenParameter|null $value |
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* @param (callable($this, TWhenParameter): TWhenReturnType)|null $callback |
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* @param (callable($this, TWhenParameter): TWhenReturnType)|null $default |
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* @return $this|TWhenReturnType |
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*/ |
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public function when($value = null, ?callable $callback = null, ?callable $default = null) |
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{ |
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$value = $value instanceof Closure ? $value($this) : $value; |
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|
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if (func_num_args() === 0) { |
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return new HigherOrderWhenProxy($this); |
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} |
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|
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if (func_num_args() === 1) { |
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return (new HigherOrderWhenProxy($this))->condition($value); |
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} |
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|
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if ($value) { |
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return $callback($this, $value) ?? $this; |
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} elseif ($default) { |
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return $default($this, $value) ?? $this; |
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} |
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|
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return $this; |
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} |
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|
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/** |
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* Apply the callback if the given "value" is (or resolves to) falsy. |
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* |
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* @template TUnlessParameter |
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* @template TUnlessReturnType |
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* |
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* @param (\Closure($this): TUnlessParameter)|TUnlessParameter|null $value |
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* @param (callable($this, TUnlessParameter): TUnlessReturnType)|null $callback |
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* @param (callable($this, TUnlessParameter): TUnlessReturnType)|null $default |
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* @return $this|TUnlessReturnType |
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*/ |
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public function unless($value = null, callable $callback = null, callable $default = null) |
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{ |
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$value = $value instanceof Closure ? $value($this) : $value; |
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|
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if (func_num_args() === 0) { |
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return (new HigherOrderWhenProxy($this))->negateConditionOnCapture(); |
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} |
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|
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if (func_num_args() === 1) { |
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return (new HigherOrderWhenProxy($this))->condition(! $value); |
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} |
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|
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if (! $value) { |
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return $callback($this, $value) ?? $this; |
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} elseif ($default) { |
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return $default($this, $value) ?? $this; |
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} |
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|
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return $this; |
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} |
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} |
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