function Mixin::nullOrString

@psalm-pure @psalm-assert string|null $value

Parameters

mixed $value:

string $message:

Return value

void

Throws

InvalidArgumentException

File

vendor/webmozart/assert/src/Mixin.php, line 27

Class

Mixin

This trait provides nurllOr*, all* and allNullOr* variants of assertion base methods. Do not use this trait directly: it will change, and is not designed for reuse.

Namespace

Webmozart\Assert

Code

public static function nullOrString($value, $message = '') {
    null === $value || static::string($value, $message);
}