mirror of
https://github.com/rectorphp/rector.git
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102 lines
3.3 KiB
PHP
102 lines
3.3 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\CodeQuality\Rector\Expression;
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use PhpParser\Node;
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use PhpParser\Node\Expr;
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use PhpParser\Node\Expr\BinaryOp\BooleanAnd;
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use PhpParser\Node\Expr\BinaryOp\BooleanOr;
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use PhpParser\Node\Expr\BooleanNot;
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use PhpParser\Node\Expr\FuncCall;
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use PhpParser\Node\Stmt\Expression;
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use PhpParser\Node\Stmt\If_;
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use PHPStan\Type\BooleanType;
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use Rector\Core\NodeManipulator\BinaryOpManipulator;
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use Rector\Core\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 https://3v4l.org/dmHCC
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*
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* @see \Rector\Tests\CodeQuality\Rector\Expression\InlineIfToExplicitIfRector\InlineIfToExplicitIfRectorTest
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*/
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final class InlineIfToExplicitIfRector extends \Rector\Core\Rector\AbstractRector
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{
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/**
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* @var \Rector\Core\NodeManipulator\BinaryOpManipulator
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*/
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private $binaryOpManipulator;
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public function __construct(\Rector\Core\NodeManipulator\BinaryOpManipulator $binaryOpManipulator)
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{
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$this->binaryOpManipulator = $binaryOpManipulator;
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}
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public function getRuleDefinition() : \Symplify\RuleDocGenerator\ValueObject\RuleDefinition
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{
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return new \Symplify\RuleDocGenerator\ValueObject\RuleDefinition('Change inline if to explicit if', [new \Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample(<<<'CODE_SAMPLE'
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class SomeClass
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{
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public function run()
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{
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$userId = null;
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is_null($userId) && $userId = 5;
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}
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}
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CODE_SAMPLE
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, <<<'CODE_SAMPLE'
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class SomeClass
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{
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public function run()
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{
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$userId = null;
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if (is_null($userId)) {
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$userId = 5;
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}
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}
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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 [\PhpParser\Node\Stmt\Expression::class];
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}
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/**
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* @param Expression $node
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*/
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public function refactor(\PhpParser\Node $node) : ?\PhpParser\Node
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{
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if ($node->expr instanceof \PhpParser\Node\Expr\BinaryOp\BooleanAnd) {
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return $this->processExplicitIf($node);
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}
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if ($node->expr instanceof \PhpParser\Node\Expr\BinaryOp\BooleanOr) {
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return $this->processExplicitIf($node);
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}
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return null;
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}
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private function processExplicitIf(\PhpParser\Node\Stmt\Expression $expression) : ?\PhpParser\Node
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{
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/** @var BooleanAnd|BooleanOr $booleanExpr */
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$booleanExpr = $expression->expr;
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$leftStaticType = $this->getStaticType($booleanExpr->left);
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if (!$leftStaticType instanceof \PHPStan\Type\BooleanType) {
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return null;
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}
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$exprLeft = $booleanExpr->left instanceof \PhpParser\Node\Expr\BooleanNot ? $booleanExpr->left->expr : $booleanExpr->left;
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if ($exprLeft instanceof \PhpParser\Node\Expr\FuncCall && $this->isName($exprLeft, 'defined')) {
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return null;
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}
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/** @var Expr $expr */
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$expr = $booleanExpr instanceof \PhpParser\Node\Expr\BinaryOp\BooleanAnd ? $booleanExpr->left : $this->binaryOpManipulator->inverseNode($booleanExpr->left);
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$if = new \PhpParser\Node\Stmt\If_($expr);
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$if->stmts[] = new \PhpParser\Node\Stmt\Expression($booleanExpr->right);
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$this->mirrorComments($if, $expression);
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return $if;
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}
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}
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