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RemoveConcatAutocastRector.php
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View: RemoveConcatAutocastRector.php
<?php declare (strict_types=1); namespace Rector\DeadCode\Rector\Concat; use PhpParser\Node; use PhpParser\Node\Expr; use PhpParser\Node\Expr\BinaryOp\Concat; use PhpParser\Node\Expr\Cast\String_; use Rector\Rector\AbstractRector; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\DeadCode\Rector\Concat\RemoveConcatAutocastRector\RemoveConcatAutocastRectorTest */ final class RemoveConcatAutocastRector extends AbstractRector { public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Remove (string) casting when it comes to concat, that does this by default', [new CodeSample(<<<'CODE_SAMPLE' class SomeConcatingClass { public function run($value) { return 'hi ' . (string) $value; } } CODE_SAMPLE , <<<'CODE_SAMPLE' class SomeConcatingClass { public function run($value) { return 'hi ' . $value; } } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [Concat::class]; } /** * @param Concat $node */ public function refactor(Node $node) : ?Node { if (!$node->left instanceof String_ && !$node->right instanceof String_) { return null; } $node->left = $this->removeStringCast($node->left); $node->right = $this->removeStringCast($node->right); return $node; } private function removeStringCast(Expr $expr) : Expr { return $expr instanceof String_ ? $expr->expr : $expr; } }
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