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<?php |
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namespace Vanderlee\Comprehend\Builder; |
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use Vanderlee\Comprehend\Parser\Parser; |
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trait RuleToParserTrait |
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{ |
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/** |
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* List of static methods (in order) to attempt instantiating a rule. |
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* |
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* @var string[] |
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*/ |
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private static $ruleToParserMethods = [ |
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'definitionRuleToParser', |
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'parserRuleToParser', |
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'callableRuleToParser', |
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'classnameRuleToParser', |
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'argumentRuleToParser', |
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]; |
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/** |
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* @param mixed $rule |
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* @param array $arguments |
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* |
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* @return Implementation|null |
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* @SuppressWarnings(PHPMD.UnusedPrivateMethod) |
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*/ |
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private static function definitionRuleToParser($rule, $arguments) |
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{ |
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if ($rule instanceof Definition) { |
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return new Implementation($rule, $arguments); |
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} |
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return null; |
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} |
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/** |
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* @param mixed $rule |
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* |
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* @return Parser|null |
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* @SuppressWarnings(PHPMD.UnusedPrivateMethod) |
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*/ |
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private static function parserRuleToParser($rule) |
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{ |
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if ($rule instanceof Parser) { |
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return clone $rule; |
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} |
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return null; |
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} |
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/** |
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* @param mixed $rule |
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* @param array $arguments |
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* |
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* @return Parser|null |
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* @SuppressWarnings(PHPMD.UnusedPrivateMethod) |
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*/ |
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private static function callableRuleToParser($rule, $arguments) |
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{ |
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if (is_callable($rule)) { |
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return $rule(...$arguments); |
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} |
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return null; |
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} |
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/** |
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* @param mixed $rule |
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* @param array $arguments |
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* |
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* @return Parser|null |
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* @SuppressWarnings(PHPMD.UnusedPrivateMethod) |
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*/ |
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private static function classnameRuleToParser($rule, $arguments) |
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{ |
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if (is_string($rule) |
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&& class_exists($rule) |
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&& is_subclass_of($rule, Parser::class)) { |
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return new $rule(...$arguments); |
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} |
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return null; |
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} |
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/** |
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* @param mixed $rule |
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* |
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* @return Parser|null |
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* @SuppressWarnings(PHPMD.UnusedPrivateMethod) |
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*/ |
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private static function argumentRuleToParser($rule) |
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{ |
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if (is_array($rule) |
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|| is_string($rule) |
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|| is_int($rule)) { |
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return self::getArgument($rule); |
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} |
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return null; |
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} |
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/** |
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* @param mixed $rule |
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* @param $arguments |
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* |
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* @return Parser|null |
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*/ |
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private static function ruleToParser(&$rule, $arguments) |
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{ |
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foreach (self::$ruleToParserMethods as $ruleToParserMethod) { |
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$instance = self::$ruleToParserMethod($rule, $arguments); |
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if ($instance) { |
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return $instance; |
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} |
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} |
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return null; |
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} |
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} |
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vanderlee /
Comprehend
