/usr/share/php/Composer/DependencyResolver/Rule2Literals.php is in composer 1.6.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\DependencyResolver;
use Composer\Package\PackageInterface;
use Composer\Package\Link;
/**
* @author Nils Adermann <naderman@naderman.de>
*/
class Rule2Literals extends Rule
{
protected $literal1;
protected $literal2;
/**
* @param int $literal1
* @param int $literal2
* @param int $reason A RULE_* constant describing the reason for generating this rule
* @param Link|PackageInterface $reasonData
* @param array $job The job this rule was created from
*/
public function __construct($literal1, $literal2, $reason, $reasonData, $job = null)
{
parent::__construct($reason, $reasonData, $job);
if ($literal1 < $literal2) {
$this->literal1 = $literal1;
$this->literal2 = $literal2;
} else {
$this->literal1 = $literal2;
$this->literal2 = $literal1;
}
}
public function getLiterals()
{
return array($this->literal1, $this->literal2);
}
public function getHash()
{
$data = unpack('ihash', md5($this->literal1.','.$this->literal2, true));
return $data['hash'];
}
/**
* Checks if this rule is equal to another one
*
* Ignores whether either of the rules is disabled.
*
* @param Rule $rule The rule to check against
* @return bool Whether the rules are equal
*/
public function equals(Rule $rule)
{
$literals = $rule->getLiterals();
if (2 != count($literals)) {
return false;
}
if ($this->literal1 !== $literals[0]) {
return false;
}
if ($this->literal2 !== $literals[1]) {
return false;
}
return true;
}
public function isAssertion()
{
return false;
}
/**
* Formats a rule as a string of the format (Literal1|Literal2|...)
*
* @return string
*/
public function __toString()
{
$result = ($this->isDisabled()) ? 'disabled(' : '(';
$result .= $this->literal1 . '|' . $this->literal2 . ')';
return $result;
}
}
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