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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\Constraint;
/**
* Blackhole of constraints, nothing escapes it
*/
class MatchNoneConstraint implements ConstraintInterface
{
/** @var string|null */
protected $prettyString;
/**
* @param ConstraintInterface $provider
*
* @return bool
*/
public function matches(ConstraintInterface $provider)
{
return false;
}
/**
* {@inheritDoc}
*/
public function compile($otherOperator)
{
return 'false';
}
/**
* {@inheritDoc}
*/
public function setPrettyString($prettyString)
{
$this->prettyString = $prettyString;
}
/**
* {@inheritDoc}
*/
public function getPrettyString()
{
if ($this->prettyString) {
return $this->prettyString;
}
return (string) $this;
}
/**
* {@inheritDoc}
*/
public function __toString()
{
return '[]';
}
/**
* {@inheritDoc}
*/
public function getUpperBound()
{
return new Bound('0.0.0.0-dev', false);
}
/**
* {@inheritDoc}
*/
public function getLowerBound()
{
return new Bound('0.0.0.0-dev', false);
}
}