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<?php |
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namespace Colada |
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{ |
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use Colada\X\LazyObjectProxy; |
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use InvalidArgumentException; |
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if (!function_exists('\\Colada\\x')) { |
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/** |
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* Represents future value (useful for processing collection elements with {@see \Colada\Collection::mapBy()}, for example). |
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* |
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* Example: |
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* <code> |
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* $users->acceptBy(\Colada\x()->isActive()); |
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* </code> |
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* |
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* And example for PHP 5.6: |
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* <code> |
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* use function Colada\x; |
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* |
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* $users->acceptBy(x()->isActive()); |
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* </code> |
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* |
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* vs. |
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* |
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* <code> |
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* $users->acceptBy( |
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* function($user) { return $user->isActive(); } |
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* ); |
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* </code> |
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* |
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* @api |
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* |
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* @param null|string $t Return class type hint (for PHPStorm, see .phpstorm.meta.php in the package's root) |
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* |
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* @return callable |
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*/ |
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function x($t = null) |
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{ |
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return new LazyObjectProxy(); |
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} |
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} |
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if (!function_exists('\\Colada\\lazy')) { |
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/** |
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* Wraps object to proxy, that collects all actions and plays them only when asked. |
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* |
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* Example: |
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* <code> |
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* use function Colada\lazy; |
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* |
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* $value = lazy(new \ArrayObject([1, 2, 3]))->count(); |
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* |
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* echo $value(); // Will print "3". |
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* </code> |
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* |
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* @api |
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* |
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* @param mixed $object |
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* |
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* @return callable |
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*/ |
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function lazy($object) |
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{ |
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if (!is_object($object)) { |
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throw new InvalidArgumentException('Only objects can be wrapped.'); |
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} |
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return new LazyObjectProxy(function () use ($object) { |
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return $object; |
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}); |
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} |
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} |
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} |
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namespace Colada\X |
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{ |
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use ArrayAccess; |
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use Closure; |
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use ReflectionFunction; |
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use ReflectionMethod; |
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use ReflectionObject; |
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if (!function_exists('\\Colada\\X\\id')) { |
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/** |
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* @param $value |
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* |
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* @return mixed |
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*/ |
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function id($value) |
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{ |
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return $value; |
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} |
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} |
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if (!function_exists('\\Colada\\X\\is_array_accessible')) { |
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/** |
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* @param mixed $value |
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* |
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* @return bool |
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*/ |
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function is_array_accessible($value) |
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{ |
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return is_array($value) || (is_object($value) && ($value instanceof ArrayAccess)); |
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} |
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} |
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if (!function_exists('\\Colada\\X\\as_closure')) { |
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/** |
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* Create \Closure view of given callable |
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* |
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* Closure style calling can speed up callback (see http://php.net/manual/en/reflectionfunction.getclosure.php |
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* for details). |
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* |
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* @see https://wiki.php.net/rfc/closurefromcallable |
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* |
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* @param callable $callback |
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* |
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* @return Closure |
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*/ |
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function as_closure(callable $callback) |
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{ |
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if (method_exists('Closure','fromCallable')) { |
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// Available as of PHP 7.1 |
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$closure = Closure::fromCallable($callback); |
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} else { |
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if (is_object($callback) && ($callback instanceof Closure)) { |
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$closure = $callback; |
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} elseif (is_object($callback)) { |
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// Object with __invoke(). |
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$closure = (new ReflectionObject($callback))->getMethod('__invoke')->getClosure($callback); |
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} elseif (is_array($callback) && is_object($callback[0])) { |
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// Object method. |
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$closure = (new ReflectionMethod($callback[0], $callback[1]))->getClosure($callback[0]); |
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} elseif (is_array($callback)) { |
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// Static method. |
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$closure = (new ReflectionMethod($callback[0], $callback[1]))->getClosure(); |
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} else { |
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// Function name as a string. |
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$closure = (new ReflectionFunction($callback))->getClosure(); |
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} |
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} |
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return $closure; |
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} |
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} |
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} |
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.