Current Path : /data/web/virtuals/51568/virtual/www/subdom/srps/vendor/phpoption/phpoption/src/PhpOption/ |
Current File : /data/web/virtuals/51568/virtual/www/subdom/srps/vendor/phpoption/phpoption/src/PhpOption/Some.php |
<?php /* * Copyright 2012 Johannes M. Schmitt <schmittjoh@gmail.com> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace PhpOption; use ArrayIterator; /** * @template T * * @extends Option<T> */ final class Some extends Option { /** @var T */ private $value; /** * @param T $value */ public function __construct($value) { $this->value = $value; } /** * @template U * * @param U $value * * @return Some<U> */ public static function create($value): self { return new self($value); } public function isDefined(): bool { return true; } public function isEmpty(): bool { return false; } public function get() { return $this->value; } public function getOrElse($default) { return $this->value; } public function getOrCall($callable) { return $this->value; } public function getOrThrow(\Exception $ex) { return $this->value; } public function orElse(Option $else) { return $this; } public function ifDefined($callable) { $this->forAll($callable); } public function forAll($callable) { $callable($this->value); return $this; } public function map($callable) { return new self($callable($this->value)); } public function flatMap($callable) { /** @var mixed */ $rs = $callable($this->value); if (!$rs instanceof Option) { throw new \RuntimeException('Callables passed to flatMap() must return an Option. Maybe you should use map() instead?'); } return $rs; } public function filter($callable) { if (true === $callable($this->value)) { return $this; } return None::create(); } public function filterNot($callable) { if (false === $callable($this->value)) { return $this; } return None::create(); } public function select($value) { if ($this->value === $value) { return $this; } return None::create(); } public function reject($value) { if ($this->value === $value) { return None::create(); } return $this; } /** * @return ArrayIterator<int, T> */ public function getIterator(): ArrayIterator { return new ArrayIterator([$this->value]); } public function foldLeft($initialValue, $callable) { return $callable($initialValue, $this->value); } public function foldRight($initialValue, $callable) { return $callable($this->value, $initialValue); } }