| /vendor/fusonic/linq/src/Fusonic/Linq/Helper/LinqHelper.php |
|---|
| @@ -0,0 +1,67 @@ |
|---|
| <?php |
| |
| /* |
| * This file is part of Fusonic-linq. |
| * https://github.com/fusonic/fusonic-linq |
| * |
| * (c) Fusonic GmbH |
| * |
| * For the full copyright and license information, please view the LICENSE |
| * file that was distributed with this source code. |
| */ |
| |
| namespace Fusonic\Linq\Helper; |
| |
| use ArrayIterator; |
| use InvalidArgumentException; |
| use UnexpectedValueException; |
| |
| class LinqHelper |
| { |
| const MODE_ASSERT = 'MODE_ASSERT'; |
| const MODE_NULL = 'MODE_NULL'; |
| |
| const LINQ_ORDER_ASC = 'asc'; |
| const LINQ_ORDER_DESC = 'desc'; |
| |
| const LINQ_ORDER_TYPE_NUMERIC = 1; |
| const LINQ_ORDER_TYPE_ALPHANUMERIC = 2; |
| const LINQ_ORDER_TYPE_DATETIME = 3; |
| |
| public static function getBoolOrThrowException($returned) |
| { |
| if (!is_bool($returned)) { |
| throw new UnexpectedValueException("Return type of filter func must be boolean."); |
| } |
| return $returned; |
| } |
| |
| public static function assertArgumentIsIterable($param, $argumentName) |
| { |
| if (!self::isIterable($param)) { |
| throw new InvalidArgumentException("Argument must be an array, or implement either the \IteratorAggregate or \Iterator interface. ArgumentName = " . $argumentName); |
| } |
| } |
| |
| public static function getIteratorOrThrow($value) |
| { |
| if (is_array($value)) { |
| return new ArrayIterator($value); |
| } |
| else if($value instanceof \IteratorAggregate) { |
| return $value->getIterator(); |
| } |
| else if($value instanceof \Iterator) { |
| return $value; |
| } |
| |
| throw new \UnexpectedValueException("Value must be an array, or implement either the \IteratorAggregate or \Iterator interface"); |
| } |
| |
| public static function isIterable($param) |
| { |
| return is_array($param) |
| || $param instanceof \IteratorAggregate |
| || $param instanceof \Iterator; |
| } |
| } |
