Zenstruck\Callback\Parameter\UnionParameter

Complexity

Total Complexity

6

Size/Duplication

Total Lines	30
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	7	2
A	valueFor()	0	11	3
A	type()	0	3	1

<?php

namespace Zenstruck\Callback\Parameter;

use Zenstruck\Callback\Argument;
use Zenstruck\Callback\Exception\UnresolveableArgument;
use Zenstruck\Callback\Parameter;

/**
 * @author Kevin Bond <kevinbond@gmail.com>
 */
final class UnionParameter extends Parameter
{
    /** @var Parameter[] */
    private $parameters;

    public function __construct(Parameter ...$parameters)
    {
        if (empty($parameters)) {
            throw new \InvalidArgumentException('At least one argument is required.');
        }

        $this->parameters = $parameters;
    }

    public function type(): string
    {
        return \implode('|', \array_map(static function(Parameter $param) { return $param->type(); }, $this->parameters));
    }

    protected function valueFor(Argument $argument)
    {
        foreach ($this->parameters as $parameter) {
            try {
                return $parameter->valueFor($argument);
            } catch (UnresolveableArgument $e) {
                continue;
            }
        }

        throw new UnresolveableArgument('Unable to resolve.');
    }
}