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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;
/**
* Base constraint class.
*/
abstract class AbstractConstraint implements ConstraintInterface
{
/** @var string */
protected $prettyString;
/**
* @param ConstraintInterface $provider
*
* @return bool
*/
public function matches(ConstraintInterface $provider)
{
if ($provider instanceof MultiConstraint) {
// turn matching around to find a match
return $provider->matches($this);
}
if ($provider instanceof $this) {
// see note at bottom of this class declaration
return $this->matchSpecific($provider);
}
return true;
}
/**
* @param string $prettyString
*/
public function setPrettyString($prettyString)
{
$this->prettyString = $prettyString;
}
/**
* @return string
*/
public function getPrettyString()
{
if ($this->prettyString) {
return $this->prettyString;
}
return $this->__toString();
}
// implementations must implement a method of this format:
// not declared abstract here because type hinting violates parameter coherence (TODO right word?)
// public function matchSpecific(<SpecificConstraintType> $provider);
}
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