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<?php declare (strict_types=1); namespace Rector\CodingStyle\Rector\Assign; use PhpParser\Node; use PhpParser\Node\Expr\Assign; use PhpParser\Node\Expr\CallLike; use PhpParser\Node\Stmt\Expression; use Rector\Core\Rector\AbstractRector; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\CodingStyle\Rector\Assign\SplitDoubleAssignRector\SplitDoubleAssignRectorTest */ final class SplitDoubleAssignRector extends AbstractRector { public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Split multiple inline assigns to each own lines default value, to prevent undefined array issues', [new CodeSample(<<<'CODE_SAMPLE' class SomeClass { public function run() { $one = $two = 1; } } CODE_SAMPLE , <<<'CODE_SAMPLE' class SomeClass { public function run() { $one = 1; $two = 1; } } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [Expression::class]; } /** * @param Expression $node * @return Expression[]|null */ public function refactor(Node $node) : ?array { if (!$node->expr instanceof Assign) { return null; } $firstAssign = $node->expr; if (!$firstAssign->expr instanceof Assign) { return null; } $nestedAssign = $firstAssign->expr; $newAssign = new Assign($firstAssign->var, $nestedAssign->expr); $newAssignExpression = new Expression($newAssign); // avoid calling the same method/funtion/new twice if (!$nestedAssign->expr instanceof CallLike) { $varAssign = new Assign($nestedAssign->var, $nestedAssign->expr); return [$newAssignExpression, new Expression($varAssign)]; } $varAssign = new Assign($nestedAssign->var, $firstAssign->var); return [$newAssignExpression, new Expression($varAssign)]; } }
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