rector/rules/Defluent/Rector/Return_/DefluentReturnMethodCallRector.php

<?php

declare (strict_types=1);
namespace Rector\Defluent\Rector\Return_;

use PhpParser\Node;
use PhpParser\Node\Expr\MethodCall;
use PhpParser\Node\Expr\Variable;
use PhpParser\Node\Stmt\Expression;
use PhpParser\Node\Stmt\Return_;
use Rector\Core\Rector\AbstractRector;
use Rector\Defluent\NodeAnalyzer\FluentChainMethodCallNodeAnalyzer;
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
/**
 * @see \Rector\Tests\Defluent\Rector\Return_\DefluentReturnMethodCallRector\DefluentReturnMethodCallRectorTest
 */
final class DefluentReturnMethodCallRector extends \Rector\Core\Rector\AbstractRector
{
    /**
     * @var \Rector\Defluent\NodeAnalyzer\FluentChainMethodCallNodeAnalyzer
     */
    private $fluentChainMethodCallNodeAnalyzer;
    public function __construct(\Rector\Defluent\NodeAnalyzer\FluentChainMethodCallNodeAnalyzer $fluentChainMethodCallNodeAnalyzer)
    {
        $this->fluentChainMethodCallNodeAnalyzer = $fluentChainMethodCallNodeAnalyzer;
    }
    public function getRuleDefinition() : \Symplify\RuleDocGenerator\ValueObject\RuleDefinition
    {
        return new \Symplify\RuleDocGenerator\ValueObject\RuleDefinition('Turns return of fluent, to standalone call line and return of value', [new \Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample(<<<'CODE_SAMPLE'
$someClass = new SomeClass();
return $someClass->someFunction();
CODE_SAMPLE
, <<<'CODE_SAMPLE'
$someClass = new SomeClass();
$someClass->someFunction();
return $someClass;
CODE_SAMPLE
)]);
    }
    /**
     * @return array<class-string<Node>>
     */
    public function getNodeTypes() : array
    {
        return [\PhpParser\Node\Stmt\Return_::class];
    }
    /**
     * @param Return_ $node
     * @return null|Expression[]|Return_[]
     */
    public function refactor(\PhpParser\Node $node) : ?array
    {
        if (!$node->expr instanceof \PhpParser\Node\Expr\MethodCall) {
            return null;
        }
        $methodCall = $node->expr;
        if (!$methodCall->var instanceof \PhpParser\Node\Expr\Variable) {
            return null;
        }
        if (!$this->fluentChainMethodCallNodeAnalyzer->isFluentClassMethodOfMethodCall($methodCall)) {
            return null;
        }
        $variableReturn = new \PhpParser\Node\Stmt\Return_($methodCall->var);
        return [new \PhpParser\Node\Stmt\Expression($methodCall), $variableReturn];
    }
}