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Encapsed
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WrapEncapsedVariableInCurlyBracesRector.php
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<?php declare (strict_types=1); namespace Rector\CodingStyle\Rector\Encapsed; use PhpParser\Node; use PhpParser\Node\Expr\Variable; use PhpParser\Node\Scalar\Encapsed; use Rector\Rector\AbstractRector; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\CodingStyle\Rector\Encapsed\WrapEncapsedVariableInCurlyBracesRector\WrapEncapsedVariableInCurlyBracesRectorTest */ final class WrapEncapsedVariableInCurlyBracesRector extends AbstractRector { public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Wrap encapsed variables in curly braces', [new CodeSample(<<<'CODE_SAMPLE' function run($world) { echo "Hello $world!"; } CODE_SAMPLE , <<<'CODE_SAMPLE' function run($world) { echo "Hello {$world}!"; } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [Encapsed::class]; } /** * @param Encapsed $node */ public function refactor(Node $node) : ?Node { $startTokenPos = $node->getStartTokenPos(); $hasVariableBeenWrapped = \false; foreach ($node->parts as $index => $nodePart) { if ($nodePart instanceof Variable) { $previousNode = $node->parts[$index - 1] ?? null; $previousNodeEndTokenPosition = $previousNode instanceof Node ? $previousNode->getEndTokenPos() : $startTokenPos; if ($previousNodeEndTokenPosition + 1 === $nodePart->getStartTokenPos()) { $hasVariableBeenWrapped = \true; $node->parts[$index] = new Variable($nodePart->name); } } } if (!$hasVariableBeenWrapped) { return null; } return $node; } }
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