<?php
namespace Encase\Functional;
use Encase\Functional\Exceptions\InvalidTypeError;
/**
* Asserts the value is the given type or one of an array of types.
* Returns the matched type of the value or throws an exception on no match.
*
* @see \Encase\Functional\isType
*
* @param mixed $value Value to be checked.
* @param string|string[] $type Type or an array of matched types.
* @param string|null $paramName Parameter name to reference in exceptions.
* @return string
* @throws \Encase\Functional\Exceptions\InvalidTypeError
*/
function assertType($value, $type, string $paramName = null): string
{
$match = isType($value, $type);
if ($match === false) {
throw InvalidTypeError::make($type, $value, $paramName, 2);
}
return $match;
}
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