alexeyshockov / pattern-matcher
Pattern matching for PHP.
v0.1.1
2019-02-11 13:06 UTC
Requires
- php: ~5.6 || ~7.0
- lstrojny/functional-php: ~1.4
- phpoption/phpoption: ~1.5
Requires (Dev)
- phpspec/phpspec: ~2.5
This package is auto-updated.
Last update: 2024-10-12 03:21:27 UTC
README
Simple pattern matching technique from functional languages. For PHP.
Examples
With Option from schmittjoh/php-option:
use function PatternMatcher\option_matcher; $matcher = option_matcher(function ($className, ReflectionClass $class) { return ($class->getName() == $className) || $class->isSubclassOf($className); }) ->addCase(InputInterface::class, $input) ->addCase(OutputInterface::class, $output) ->addCase(Output::class, new Output($output)) ->addCase(HelperInterface::class, function (ReflectionClass $class) { foreach ($this->getHelperSet() as $helper) { if ($class->isInstance($helper)) { return $helper; } } throw new InvalidArgumentException("Helper with type " . $class->getName() . " is not registered."); }) ; $argument = $argumentDefinition->getClass() ->flatMap($matcher) ->getOrThrow(new InvalidArgumentException( 'Parameter $' . $argumentDefinition->getName() . ': type is missed or not supported.' ));
Or with ColadaX:
use PatternMatcher\matcher; use PatternMatcher\all; use Colada\x; matcher() ->addCase(all(x()->isActive(), x()->hasFriends()), )
Or pure:
$matcher = (new PatternMatcher(function ($className, ReflectionClass $class) { return ($class->getName() == $className) || $class->isSubclassOf($className); })) ->addCase(InputInterface::class, $input) ->addCase(OutputInterface::class, $output) ->addCase(Output::class, new Output($output)) ->addCase(HelperInterface::class, function (ReflectionClass $class) { foreach ($this->getHelperSet() as $helper) { if ($class->isInstance($helper)) { return $helper; } } throw new InvalidArgumentException("Helper with type " . $class->getName() . " is not registered."); }) ; $argument = $argumentDefinition->getClass() ->flatMap($matcher) ->getOrThrow(new InvalidArgumentException( 'Parameter $' . $argumentDefinition->getName() . ': type is missed or not supported.' ));