mirror of https://github.com/rectorphp/rector.git
51 lines
1.6 KiB
PHP
51 lines
1.6 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\Instanceof_\Rector\Ternary;
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use PhpParser\Node;
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use PhpParser\Node\Expr;
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use PhpParser\Node\Expr\BooleanNot;
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use PhpParser\Node\Expr\Instanceof_;
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use PhpParser\Node\Expr\Ternary;
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use Rector\Rector\AbstractRector;
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use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
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use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
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/**
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* @see \Rector\Tests\Instanceof_\Rector\Ternary\FlipNegatedTernaryInstanceofRector\FlipNegatedTernaryInstanceofRectorTest
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*/
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final class FlipNegatedTernaryInstanceofRector extends AbstractRector
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{
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public function getRuleDefinition() : RuleDefinition
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{
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return new RuleDefinition('Flip negated ternary of instanceof to direct use of object', [new CodeSample('echo ! $object instanceof Product ? null : $object->getPrice();', 'echo $object instanceof Product ? $object->getPrice() : null;')]);
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}
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/**
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* @return array<class-string<Node>>
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*/
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public function getNodeTypes() : array
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{
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return [Ternary::class];
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}
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/**
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* @param Ternary $node
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*/
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public function refactor(Node $node) : ?Node
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{
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if (!$node->if instanceof Expr) {
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return null;
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}
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if (!$node->cond instanceof BooleanNot) {
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return null;
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}
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$booleanNot = $node->cond;
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if (!$booleanNot->expr instanceof Instanceof_) {
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return null;
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}
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$node->cond = $booleanNot->expr;
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// flip if and else
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[$node->if, $node->else] = [$node->else, $node->if];
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return $node;
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}
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}
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