mirror of https://github.com/rectorphp/rector.git
61 lines
1.6 KiB
PHP
61 lines
1.6 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\Php53\Rector\Ternary;
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use PhpParser\Node;
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use PhpParser\Node\Expr\Ternary;
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use Rector\NodeTypeResolver\Node\AttributeKey;
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use Rector\Rector\AbstractRector;
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use Rector\ValueObject\PhpVersionFeature;
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use Rector\VersionBonding\Contract\MinPhpVersionInterface;
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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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* @changelog http://php.net/manual/en/language.operators.comparison.php#language.operators.comparison.ternary https://stackoverflow.com/a/1993455/1348344
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*
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* @see \Rector\Tests\Php53\Rector\Ternary\TernaryToElvisRector\TernaryToElvisRectorTest
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*/
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final class TernaryToElvisRector extends AbstractRector implements MinPhpVersionInterface
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{
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public function getRuleDefinition() : RuleDefinition
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{
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return new RuleDefinition('Use ?: instead of ?, where useful', [new CodeSample(<<<'CODE_SAMPLE'
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function elvis()
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{
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$value = $a ? $a : false;
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}
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CODE_SAMPLE
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, <<<'CODE_SAMPLE'
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function elvis()
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{
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$value = $a ?: false;
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}
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CODE_SAMPLE
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)]);
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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 $node) : ?Node
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{
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if (!$this->nodeComparator->areNodesEqual($node->cond, $node->if)) {
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return null;
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}
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$node->setAttribute(AttributeKey::ORIGINAL_NODE, null);
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$node->if = null;
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return $node;
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}
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public function provideMinPhpVersion() : int
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{
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return PhpVersionFeature::ELVIS_OPERATOR;
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}
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}
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