mirror of https://github.com/rectorphp/rector.git
67 lines
1.5 KiB
PHP
67 lines
1.5 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\CodingStyle\Rector\Closure;
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use PhpParser\Node;
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use PhpParser\Node\Expr\Closure;
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use Rector\CodingStyle\Guard\StaticGuard;
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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\CodingStyle\Rector\Closure\StaticClosureRector\StaticClosureRectorTest
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*/
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final class StaticClosureRector extends AbstractRector
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{
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/**
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* @readonly
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* @var \Rector\CodingStyle\Guard\StaticGuard
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*/
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private $staticGuard;
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public function __construct(StaticGuard $staticGuard)
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{
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$this->staticGuard = $staticGuard;
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}
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public function getRuleDefinition() : RuleDefinition
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{
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return new RuleDefinition('Changes Closure to be static when possible', [new CodeSample(<<<'CODE_SAMPLE'
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function () {
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if (rand(0, 1)) {
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return 1;
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}
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return 2;
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}
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CODE_SAMPLE
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, <<<'CODE_SAMPLE'
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static function () {
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if (rand(0, 1)) {
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return 1;
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}
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return 2;
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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 [Closure::class];
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}
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/**
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* @param Closure $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->staticGuard->isLegal($node)) {
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return null;
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}
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$node->static = \true;
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return $node;
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}
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}
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