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<?php
/**
* This file is part of the ramsey/collection library
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
* @license http://opensource.org/licenses/MIT MIT
*/
declare(strict_types=1);
namespace Ramsey\Collection\Map;
use Ramsey\Collection\Exception\InvalidArgumentException;
use Ramsey\Collection\Tool\TypeTrait;
use Ramsey\Collection\Tool\ValueToStringTrait;
use function array_combine;
use function array_key_exists;
use function is_int;
/**
* `NamedParameterMap` represents a mapping of values to a set of named keys
* that may optionally be typed
*
* @extends AbstractMap<string, mixed>
*/
class NamedParameterMap extends AbstractMap
{
use TypeTrait;
use ValueToStringTrait;
/**
* Named parameters defined for this map.
*
* @var array<string, string>
*/
private readonly array $namedParameters;
/**
* Constructs a new `NamedParameterMap`.
*
* @param array<array-key, string> $namedParameters The named parameters defined for this map.
* @param array<string, mixed> $data An initial set of data to set on this map.
*/
public function __construct(array $namedParameters, array $data = [])
{
$this->namedParameters = $this->filterNamedParameters($namedParameters);
parent::__construct($data);
}
/**
* Returns named parameters set for this `NamedParameterMap`.
*
* @return array<string, string>
*/
public function getNamedParameters(): array
{
return $this->namedParameters;
}
public function offsetSet(mixed $offset, mixed $value): void
{
if (!array_key_exists($offset, $this->namedParameters)) {
throw new InvalidArgumentException(
'Attempting to set value for unconfigured parameter \''
. $this->toolValueToString($offset) . '\'',
);
}
if ($this->checkType($this->namedParameters[$offset], $value) === false) {
throw new InvalidArgumentException(
'Value for \'' . $offset . '\' must be of type '
. $this->namedParameters[$offset] . '; value is '
. $this->toolValueToString($value),
);
}
$this->data[$offset] = $value;
}
/**
* Given an array of named parameters, constructs a proper mapping of
* named parameters to types.
*
* @param array<array-key, string> $namedParameters The named parameters to filter.
*
* @return array<string, string>
*/
protected function filterNamedParameters(array $namedParameters): array
{
$names = [];
$types = [];
foreach ($namedParameters as $key => $value) {
if (is_int($key)) {
$names[] = $value;
$types[] = 'mixed';
} else {
$names[] = $key;
$types[] = $value;
}
}
return array_combine($names, $types) ?: [];
}
}
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