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<?php |
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namespace Vanderlee\Comprehend\Match\Output; |
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trait ResultTrait |
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{ |
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/** |
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* Map of resolved result callbacks. |
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* |
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* @var array|null |
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*/ |
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private $resultCache = null; |
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/** |
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* List of partial-resolvable result callbacks. |
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* |
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* @var callable[] |
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*/ |
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private $resultCallbacks = []; |
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/** |
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* Add a callback to this match, to be called after parsing is finished and |
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* only if this match was part of the matched rules. |
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* |
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* @param callable $callback |
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* |
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* @return $this |
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*/ |
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public function addResultCallback(callable $callback) |
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{ |
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$this->resultCallbacks[] = $callback; |
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return $this; |
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} |
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/** |
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* Handle all registered result callbacks for this match and any matches |
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* at deeper levels of this match. |
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* |
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* @param array $results map of result-key => value |
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*/ |
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private function processResultCallbacks(&$results) |
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{ |
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/** @var self $success */ |
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foreach ($this->successes as $success) { |
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$success->processResultCallbacks($results); |
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} |
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foreach ($this->resultCallbacks as $callback) { |
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$callback($results); |
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} |
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} |
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/** |
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* Pre-calculate results. |
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* |
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* @return array |
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*/ |
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public function getResults() |
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{ |
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if ($this->resultCache === null) { |
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$this->resultCache = []; |
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$this->processResultCallbacks($this->resultCache); |
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} |
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return $this->resultCache; |
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} |
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//@todo deprecate? Saves no time and is part of collection |
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public function getResult(string $name = null, $default = null) |
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{ |
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$results = $this->getResults(); |
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return $results[$name] |
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?? $default; |
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} |
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//@todo deprecate? Saves no time and is part of collection |
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public function hasResult(string $name = null): bool |
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{ |
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return isset($this->getResults()[$name]); |
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} |
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} |
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vanderlee /
Comprehend
