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|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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<?php
/*
* This file is part of composer/semver.
*
* (c) Composer <https://github.com/composer>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace Composer\Semver;
use Composer\Semver\Constraint\Constraint;
use Composer\Semver\Constraint\ConstraintInterface;
/**
* Helper class to evaluate constraint by compiling and reusing the code to evaluate
*/
class CompilingMatcher
{
/**
* @var array
* @phpstan-var array<string, callable>
*/
private static $compiledCheckerCache = array();
/** @var bool */
private static $enabled;
/**
* @phpstan-var array<Constraint::OP_*, Constraint::STR_OP_*>
*/
private static $transOpInt = array(
Constraint::OP_EQ => Constraint::STR_OP_EQ,
Constraint::OP_LT => Constraint::STR_OP_LT,
Constraint::OP_LE => Constraint::STR_OP_LE,
Constraint::OP_GT => Constraint::STR_OP_GT,
Constraint::OP_GE => Constraint::STR_OP_GE,
Constraint::OP_NE => Constraint::STR_OP_NE,
);
/**
* Evaluates the expression: $constraint match $operator $version
*
* @param ConstraintInterface $constraint
* @param int $operator
* @phpstan-param Constraint::OP_* $operator
* @param string $version
*
* @return mixed
*/
public static function match(ConstraintInterface $constraint, $operator, $version)
{
if (self::$enabled === null) {
self::$enabled = !\in_array('eval', explode(',', (string) ini_get('disable_functions')), true);
}
if (!self::$enabled) {
return $constraint->matches(new Constraint(self::$transOpInt[$operator], $version));
}
$cacheKey = $operator.$constraint;
if (!isset(self::$compiledCheckerCache[$cacheKey])) {
$code = $constraint->compile($operator);
self::$compiledCheckerCache[$cacheKey] = $function = eval('return function($v, $b){return '.$code.';};');
} else {
$function = self::$compiledCheckerCache[$cacheKey];
}
return $function($version, strpos($version, 'dev-') === 0);
}
}