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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Framework\Constraint;
use function array_reduce;
use function array_shift;
/**
* @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
*/
final class LogicalXor extends BinaryOperator
{
/**
* Returns the name of this operator.
*/
public function operator(): string
{
return 'xor';
}
/**
* Returns this operator's precedence.
*
* @see https://www.php.net/manual/en/language.operators.precedence.php.
*/
public function precedence(): int
{
return 23;
}
/**
* Evaluates the constraint for parameter $other. Returns true if the
* constraint is met, false otherwise.
*
* @param mixed $other value or object to evaluate
*/
public function matches($other): bool
{
$constraints = $this->constraints();
$initial = array_shift($constraints);
if ($initial === null) {
return false;
}
return array_reduce(
$constraints,
static function (bool $matches, Constraint $constraint) use ($other): bool
{
return $matches xor $constraint->evaluate($other, '', true);
},
$initial->evaluate($other, '', true)
);
}
}
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