diff options
Diffstat (limited to 'vendor/guzzle/guzzle/src/Guzzle/Iterator/FilterIterator.php')
-rw-r--r-- | vendor/guzzle/guzzle/src/Guzzle/Iterator/FilterIterator.php | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/guzzle/guzzle/src/Guzzle/Iterator/FilterIterator.php b/vendor/guzzle/guzzle/src/Guzzle/Iterator/FilterIterator.php new file mode 100644 index 0000000..b103367 --- /dev/null +++ b/vendor/guzzle/guzzle/src/Guzzle/Iterator/FilterIterator.php @@ -0,0 +1,36 @@ +<?php + +namespace Guzzle\Iterator; + +use Guzzle\Common\Exception\InvalidArgumentException; + +/** + * Filters values using a callback + * + * Used when PHP 5.4's {@see \CallbackFilterIterator} is not available + */ +class FilterIterator extends \FilterIterator +{ + /** @var mixed Callback used for filtering */ + protected $callback; + + /** + * @param \Iterator $iterator Traversable iterator + * @param array|\Closure $callback Callback used for filtering. Return true to keep or false to filter. + * + * @throws InvalidArgumentException if the callback if not callable + */ + public function __construct(\Iterator $iterator, $callback) + { + parent::__construct($iterator); + if (!is_callable($callback)) { + throw new InvalidArgumentException('The callback must be callable'); + } + $this->callback = $callback; + } + + public function accept() + { + return call_user_func($this->callback, $this->current()); + } +} |