File "OrderedAttributesFixer.php"

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Charset: utf-8

<?php

declare(strict_types=1);

/*
 * This file is part of PHP CS Fixer.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *     Dariusz Rumiński <dariusz.ruminski@gmail.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace PhpCsFixer\Fixer\AttributeNotation;

use PhpCsFixer\AbstractFixer;
use PhpCsFixer\ConfigurationException\InvalidFixerConfigurationException;
use PhpCsFixer\Fixer\ConfigurableFixerInterface;
use PhpCsFixer\Fixer\ConfigurableFixerTrait;
use PhpCsFixer\FixerConfiguration\FixerConfigurationResolver;
use PhpCsFixer\FixerConfiguration\FixerConfigurationResolverInterface;
use PhpCsFixer\FixerConfiguration\FixerOptionBuilder;
use PhpCsFixer\FixerDefinition\FixerDefinition;
use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
use PhpCsFixer\FixerDefinition\VersionSpecification;
use PhpCsFixer\FixerDefinition\VersionSpecificCodeSample;
use PhpCsFixer\Tokenizer\Analyzer\Analysis\AttributeAnalysis;
use PhpCsFixer\Tokenizer\Analyzer\Analysis\NamespaceUseAnalysis;
use PhpCsFixer\Tokenizer\Analyzer\AttributeAnalyzer;
use PhpCsFixer\Tokenizer\Analyzer\FullyQualifiedNameAnalyzer;
use PhpCsFixer\Tokenizer\FCT;
use PhpCsFixer\Tokenizer\Token;
use PhpCsFixer\Tokenizer\Tokens;
use Symfony\Component\OptionsResolver\Options;

/**
 * @phpstan-import-type _AttributeItems from AttributeAnalysis
 *
 * @phpstan-type _AutogeneratedInputConfiguration array{
 *  order?: list<string>,
 *  sort_algorithm?: 'alpha'|'custom',
 * }
 * @phpstan-type _AutogeneratedComputedConfiguration array{
 *  order: array<string, int>,
 *  sort_algorithm: 'alpha'|'custom',
 * }
 *
 * @implements ConfigurableFixerInterface<_AutogeneratedInputConfiguration, _AutogeneratedComputedConfiguration>
 *
 * @author HypeMC <hypemc@gmail.com>
 *
 * @no-named-arguments Parameter names are not covered by the backward compatibility promise.
 */
final class OrderedAttributesFixer extends AbstractFixer implements ConfigurableFixerInterface
{
    /** @use ConfigurableFixerTrait<_AutogeneratedInputConfiguration, _AutogeneratedComputedConfiguration> */
    use ConfigurableFixerTrait;

    public const ORDER_ALPHA = 'alpha';
    public const ORDER_CUSTOM = 'custom';

    private const SUPPORTED_SORT_ALGORITHMS = [
        self::ORDER_ALPHA,
        self::ORDER_CUSTOM,
    ];

    public function getDefinition(): FixerDefinitionInterface
    {
        return new FixerDefinition(
            'Sorts attributes using the configured sort algorithm.',
            [
                new VersionSpecificCodeSample(
                    <<<'EOL'
                        <?php

                        #[Foo]
                        #[Bar(3)]
                        #[Qux(new Bar(5))]
                        #[Corge(a: 'test')]
                        class Sample1 {}

                        #[
                            Foo,
                            Bar(3),
                            Qux(new Bar(5)),
                            Corge(a: 'test'),
                        ]
                        class Sample2 {}

                        EOL,
                    new VersionSpecification(8_00_00),
                ),
                new VersionSpecificCodeSample(
                    <<<'EOL'
                        <?php

                        use A\B\Foo;
                        use A\B\Bar as BarAlias;
                        use A\B as AB;

                        #[Foo]
                        #[BarAlias(3)]
                        #[AB\Qux(new Bar(5))]
                        #[\A\B\Corge(a: 'test')]
                        class Sample1 {}

                        EOL,
                    new VersionSpecification(8_00_00),
                    ['sort_algorithm' => self::ORDER_CUSTOM, 'order' => ['A\B\Qux', 'A\B\Bar', 'A\B\Corge']],
                ),
            ],
        );
    }

    /**
     * {@inheritdoc}
     *
     * Must run after FullyQualifiedStrictTypesFixer.
     */
    public function getPriority(): int
    {
        return 0;
    }

    public function isCandidate(Tokens $tokens): bool
    {
        return $tokens->isTokenKindFound(FCT::T_ATTRIBUTE);
    }

    protected function createConfigurationDefinition(): FixerConfigurationResolverInterface
    {
        $fixerName = $this->getName();

        return new FixerConfigurationResolver([
            (new FixerOptionBuilder('sort_algorithm', 'How the attributes should be sorted.'))
                ->setAllowedValues(self::SUPPORTED_SORT_ALGORITHMS)
                ->setDefault(self::ORDER_ALPHA)
                ->setNormalizer(static function (Options $options, string $value) use ($fixerName): string {
                    if (self::ORDER_CUSTOM === $value && [] === $options['order']) {
                        throw new InvalidFixerConfigurationException(
                            $fixerName,
                            'The custom order strategy requires providing `order` option with a list of attributes\'s FQNs.',
                        );
                    }

                    return $value;
                })
                ->getOption(),
            (new FixerOptionBuilder('order', 'A list of FQCNs of attributes defining the desired order used when custom sorting algorithm is configured.'))
                ->setAllowedTypes(['string[]'])
                ->setDefault([])
                ->setNormalizer(static function (Options $options, array $value) use ($fixerName): array {
                    if ($value !== array_unique($value)) {
                        throw new InvalidFixerConfigurationException($fixerName, 'The list includes attributes that are not unique.');
                    }

                    return array_flip(array_values(
                        array_map(static fn (string $attribute): string => ltrim($attribute, '\\'), $value),
                    ));
                })
                ->getOption(),
        ]);
    }

    protected function applyFix(\SplFileInfo $file, Tokens $tokens): void
    {
        $fullyQualifiedNameAnalyzer = new FullyQualifiedNameAnalyzer($tokens);

        $index = 0;

        while (null !== $index = $tokens->getNextTokenOfKind($index, [[\T_ATTRIBUTE]])) {
            /** @var _AttributeItems $elements */
            $elements = array_map(fn (AttributeAnalysis $attributeAnalysis): array => [
                'name' => $this->sortAttributes($fullyQualifiedNameAnalyzer, $tokens, $attributeAnalysis->getStartIndex(), $attributeAnalysis->getAttributes()),
                'start' => $attributeAnalysis->getStartIndex(),
                'end' => $attributeAnalysis->getEndIndex(),
            ], AttributeAnalyzer::collect($tokens, $index));

            $endIndex = end($elements)['end'];

            try {
                if (1 === \count($elements)) {
                    continue;
                }

                $sortedElements = $this->sortElements($elements);

                if ($elements === $sortedElements) {
                    continue;
                }

                $this->sortTokens($tokens, $index, $endIndex, $sortedElements);
            } finally {
                $index = $endIndex;
            }
        }
    }

    /**
     * @param _AttributeItems $attributes
     */
    private function sortAttributes(FullyQualifiedNameAnalyzer $fullyQualifiedNameAnalyzer, Tokens $tokens, int $index, array $attributes): string
    {
        if (1 === \count($attributes)) {
            return $this->getAttributeName($fullyQualifiedNameAnalyzer, $attributes[0]['name'], $attributes[0]['start']);
        }

        foreach ($attributes as &$attribute) {
            $attribute['name'] = $this->getAttributeName($fullyQualifiedNameAnalyzer, $attribute['name'], $attribute['start']);
        }

        $sortedElements = $this->sortElements($attributes);

        if ($attributes === $sortedElements) {
            return $attributes[0]['name'];
        }

        $this->sortTokens($tokens, $index + 1, end($attributes)['end'], $sortedElements, new Token(','));

        return $sortedElements[0]['name'];
    }

    private function getAttributeName(FullyQualifiedNameAnalyzer $fullyQualifiedNameAnalyzer, string $name, int $index): string
    {
        if (self::ORDER_CUSTOM === $this->configuration['sort_algorithm']) {
            return $fullyQualifiedNameAnalyzer->getFullyQualifiedName($name, $index, NamespaceUseAnalysis::TYPE_CLASS);
        }

        return ltrim($name, '\\');
    }

    /**
     * @param _AttributeItems $elements
     *
     * @return _AttributeItems
     */
    private function sortElements(array $elements): array
    {
        usort($elements, function (array $a, array $b): int {
            $sortAlgorithm = $this->configuration['sort_algorithm'];

            if (self::ORDER_ALPHA === $sortAlgorithm) {
                return $a['name'] <=> $b['name'];
            }

            if (self::ORDER_CUSTOM === $sortAlgorithm) {
                return
                    ($this->configuration['order'][$a['name']] ?? \PHP_INT_MAX)
                    <=> ($this->configuration['order'][$b['name']] ?? \PHP_INT_MAX);
            }

            throw new \InvalidArgumentException(\sprintf('Invalid sort algorithm "%s" provided.', $sortAlgorithm));
        });

        return $elements;
    }

    /**
     * @param _AttributeItems $elements
     */
    private function sortTokens(Tokens $tokens, int $startIndex, int $endIndex, array $elements, ?Token $delimiter = null): void
    {
        $replaceTokens = [];

        foreach ($elements as $pos => $element) {
            for ($i = $element['start']; $i <= $element['end']; ++$i) {
                $replaceTokens[] = clone $tokens[$i];
            }
            if (null !== $delimiter && $pos !== \count($elements) - 1) {
                $replaceTokens[] = clone $delimiter;
            }
        }

        $tokens->overrideRange($startIndex, $endIndex, $replaceTokens);
    }
}