This file is indexed.

/usr/share/php/Twig/CacheInterface.php is in php-twig 1.23.1-1ubuntu4.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
<?php

/*
 * This file is part of Twig.
 *
 * (c) 2015 Fabien Potencier
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * Interface implemented by cache classes.
 *
 * It is highly recommended to always store templates on the filesystem to
 * benefit from the PHP opcode cache. This interface is mostly useful if you
 * need to implement a custom strategy for storing templates on the filesystem.
 *
 * @author Andrew Tch <andrew@noop.lv>
 */
interface Twig_CacheInterface
{
    /**
     * Generates a cache key for the given template class name.
     *
     * @param string $name      The template name
     * @param string $className The template class name
     *
     * @return string
     */
    public function generateKey($name, $className);

    /**
     * Writes the compiled template to cache.
     *
     * @param string $key     The cache key
     * @param string $content The template representation as a PHP class
     */
    public function write($key, $content);

    /**
     * Loads a template from the cache.
     *
     * @param string $key The cache key
     */
    public function load($key);

    /**
     * Returns the modification timestamp of a key.
     *
     * @param string $key The cache key
     *
     * @return int
     */
    public function getTimestamp($key);
}