DowngradeNamedArgumentRector.php

<?php

declare(strict_types=1);

namespace Rector\DowngradePhp80\Rector\MethodCall;

use PhpParser\Node;
use PhpParser\Node\Arg;
use PhpParser\Node\Expr\FuncCall;
use PhpParser\Node\Expr\MethodCall;
use PhpParser\Node\Expr\New_;
use PhpParser\Node\Expr\StaticCall;
use PHPStan\Reflection\FunctionReflection;
use PHPStan\Reflection\MethodReflection;
use PHPStan\Type\MixedType;
use Rector\DowngradePhp80\NodeAnalyzer\UnnamedArgumentResolver;
use Rector\NodeAnalyzer\ArgsAnalyzer;
use Rector\Rector\AbstractRector;
use Rector\Reflection\ReflectionResolver;
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;

/**
 * @see \Rector\Tests\DowngradePhp80\Rector\MethodCall\DowngradeNamedArgumentRector\DowngradeNamedArgumentRectorTest
 */
final class DowngradeNamedArgumentRector extends AbstractRector
{
    public function __construct(
        private readonly ReflectionResolver $reflectionResolver,
        private readonly UnnamedArgumentResolver $unnamedArgumentResolver,
        private readonly ArgsAnalyzer $argsAnalyzer
    ) {
    }

    /**
     * @return array<class-string<Node>>
     */
    public function getNodeTypes(): array
    {
        return [MethodCall::class, StaticCall::class, New_::class, FuncCall::class];
    }

    public function getRuleDefinition(): RuleDefinition
    {
        return new RuleDefinition(
            'Remove named argument',
            [
                new CodeSample(
                    <<<'CODE_SAMPLE'
class SomeClass
{
    public function run()
    {
        $this->execute(b: 100);
    }

    private function execute($a = null, $b = null)
    {
    }
}
CODE_SAMPLE
                    ,
                    <<<'CODE_SAMPLE'
class SomeClass
{
    public function run()
    {
        $this->execute(null, 100);
    }

    private function execute($a = null, $b = null)
    {
    }
}
CODE_SAMPLE
                ),
            ]
        );
    }

    /**
     * @param MethodCall|StaticCall|New_|FuncCall $node
     */
    public function refactor(Node $node): ?Node
    {
        $args = $node->getArgs();
        if (! $this->argsAnalyzer->hasNamedArg($args)) {
            return null;
        }

        return $this->removeNamedArguments($node, $args);
    }

    /**
     * @param Arg[] $args
     */
    private function removeNamedArguments(MethodCall | StaticCall | New_ | FuncCall $node, array $args): ?Node
    {
        if ($node instanceof New_) {
            $functionLikeReflection = $this->reflectionResolver->resolveMethodReflectionFromNew($node);
        } else {
            $functionLikeReflection = $this->reflectionResolver->resolveFunctionLikeReflectionFromCall($node);
        }

        if (! $functionLikeReflection instanceof MethodReflection && ! $functionLikeReflection instanceof FunctionReflection) {
            // remove leftovers in case of unknown type, to avoid crashing on unknown syntax
            if ($node instanceof MethodCall) {
                $callerType = $this->getType($node->var);

                if ($callerType instanceof MixedType) {
                    foreach ($node->getArgs() as $arg) {
                        if ($arg->name instanceof Node) {
                            $arg->name = null;
                        }
                    }

                    return $node;
                }
            }

            return null;
        }

        $node->args = $this->unnamedArgumentResolver->resolveFromReflection($functionLikeReflection, $args);

        return $node;
    }
}