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<?php |
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namespace mpyw\Co\Internal; |
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use mpyw\Co\AllFailedException; |
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use mpyw\Co\CoInterface; |
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class ControlUtils |
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{ |
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/** |
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* Executed by Co::any() or Co::race(). |
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* @param mixed $value |
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* @param callable $filter self::reverse or self::fail. |
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* @param string $message Used for failure. |
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* @return \Generator |
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*/ |
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public static function anyOrRace($value, callable $filter, $message) |
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{ |
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$value = YieldableUtils::normalize($value); |
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$yieldables = YieldableUtils::getYieldables($value); |
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$wrapper = self::getWrapperGenerator($yieldables, $filter); |
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try { |
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$results = (yield $wrapper); |
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} catch (ControlException $e) { |
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yield CoInterface::RETURN_WITH => $e->getValue(); |
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} |
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$apply = YieldableUtils::getApplier($value, $yieldables); |
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throw new AllFailedException($message, 0, $apply($results)); |
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} |
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/** |
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* Wrap yieldables with specified filter function. |
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* @param array $yieldables |
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* @param callable $filter self::reverse or self::fail. |
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* @return \Generator |
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*/ |
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public static function getWrapperGenerator(array $yieldables, callable $filter) |
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{ |
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$gens = []; |
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foreach ($yieldables as $yieldable) { |
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$gens[(string)$yieldable['value']] = $filter($yieldable['value']); |
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} |
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yield CoInterface::RETURN_WITH => (yield $gens); |
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// @codeCoverageIgnoreStart |
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} |
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// @codeCoverageIgnoreEnd |
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/** |
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* Handle success as ControlException, failure as resolved. |
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* @param mixed $yieldable |
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* @return \Generator |
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*/ |
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public static function reverse($yieldable) |
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{ |
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try { |
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$result = (yield $yieldable); |
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} catch (\RuntimeException $e) { |
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yield CoInterface::RETURN_WITH => $e; |
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} |
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throw new ControlException($result); |
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} |
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/** |
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* Handle success as ControlException. |
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* @param mixed $yieldable |
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* @return \Generator |
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*/ |
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public static function fail($yieldable) |
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{ |
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throw new ControlException(yield $yieldable); |
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} |
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} |
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mpyw /
co
