Chadicus\Marvel\Api\Cache\AbstractCache

Complexity

Total Complexity

3

Size/Duplication

Total Lines	20
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
A	verifyKey()	0	8	3

<?php

namespace Chadicus\Marvel\Api\Cache;

/**
 * A PSR-16 implementation which does not save or store any data.
 */
abstract class AbstractCache
{
    /**
     * Verifies the the given cache key is a legal value.
     *
     * @param mixed $key The cache key to validate.
     *
     * @return void
     *
     * @throws InvalidArgumentException Thrown if the $key string is not a legal value.
     */
    final protected function verifyKey($key)
    {
        if (is_string($key) && trim($key) !== '') {
            return;
        }

        throw new InvalidArgumentException('$key must be a valid non-empty string');
    }
}