mirror of https://github.com/rectorphp/rector.git
71 lines
1.9 KiB
PHP
71 lines
1.9 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\DowngradePhp73\Rector\Unset_;
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use PhpParser\Node;
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use PhpParser\Node\Stmt\Unset_;
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use Rector\DowngradePhp73\Tokenizer\FollowedByCommaAnalyzer;
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use Rector\NodeTypeResolver\Node\AttributeKey;
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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\DowngradePhp73\Rector\Unset_\DowngradeTrailingCommasInUnsetRector\DowngradeTrailingCommasInUnsetRectorTest
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*/
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final class DowngradeTrailingCommasInUnsetRector extends AbstractRector
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{
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/**
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* @readonly
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* @var \Rector\DowngradePhp73\Tokenizer\FollowedByCommaAnalyzer
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*/
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private $followedByCommaAnalyzer;
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public function __construct(FollowedByCommaAnalyzer $followedByCommaAnalyzer)
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{
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$this->followedByCommaAnalyzer = $followedByCommaAnalyzer;
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}
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public function getRuleDefinition() : RuleDefinition
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{
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return new RuleDefinition('Remove trailing commas in unset', [new CodeSample(<<<'CODE_SAMPLE'
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unset(
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$x,
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$y,
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);
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CODE_SAMPLE
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, <<<'CODE_SAMPLE'
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unset(
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$x,
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$y
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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 [Unset_::class];
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}
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/**
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* @param Unset_ $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->vars !== []) {
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\end($node->vars);
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$lastArgumentPosition = \key($node->vars);
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\reset($node->vars);
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$last = $node->vars[$lastArgumentPosition];
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if (!$this->followedByCommaAnalyzer->isFollowed($this->file, $last)) {
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return null;
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}
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// remove comma
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$last->setAttribute(AttributeKey::FUNC_ARGS_TRAILING_COMMA, \false);
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$node->setAttribute(AttributeKey::ORIGINAL_NODE, null);
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return $node;
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}
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return null;
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}
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}
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