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Editing: RemoveUselessParamTagRector.php

<?php

declare (strict_types=1);
namespace Rector\DeadCode\Rector\ClassMethod;

use PhpParser\Node;
use PhpParser\Node\Stmt\ClassMethod;
use PhpParser\Node\Stmt\Function_;
use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfo;
use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory;
use Rector\DeadCode\PhpDoc\TagRemover\ParamTagRemover;
use Rector\Rector\AbstractRector;
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
/**
 * @see \Rector\Tests\DeadCode\Rector\ClassMethod\RemoveUselessParamTagRector\RemoveUselessParamTagRectorTest
 */
final class RemoveUselessParamTagRector extends AbstractRector
{
    /**
     * @readonly
     * @var \Rector\DeadCode\PhpDoc\TagRemover\ParamTagRemover
     */
    private $paramTagRemover;
    /**
     * @readonly
     * @var \Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory
     */
    private $phpDocInfoFactory;
    public function __construct(ParamTagRemover $paramTagRemover, PhpDocInfoFactory $phpDocInfoFactory)
    {
        $this->paramTagRemover = $paramTagRemover;
        $this->phpDocInfoFactory = $phpDocInfoFactory;
    }
    public function getRuleDefinition() : RuleDefinition
    {
        return new RuleDefinition('Remove @param docblock with same type as parameter type', [new CodeSample(<<<'CODE_SAMPLE'
class SomeClass
{
    /**
     * @param string $a
     * @param string $b description
     */
    public function foo(string $a, string $b)
    {
    }
}
CODE_SAMPLE
, <<<'CODE_SAMPLE'
class SomeClass
{
    /**
     * @param string $b description
     */
    public function foo(string $a, string $b)
    {
    }
}
CODE_SAMPLE
)]);
    }
    /**
     * @return array<class-string<Node>>
     */
    public function getNodeTypes() : array
    {
        return [ClassMethod::class, Function_::class];
    }
    /**
     * @param ClassMethod|Function_ $node
     */
    public function refactor(Node $node) : ?Node
    {
        $phpDocInfo = $this->phpDocInfoFactory->createFromNode($node);
        if (!$phpDocInfo instanceof PhpDocInfo) {
            return null;
        }
        $hasChanged = $this->paramTagRemover->removeParamTagsIfUseless($phpDocInfo, $node);
        if ($hasChanged) {
            return $node;
        }
        return null;
    }
}

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