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<?php declare (strict_types=1); namespace Rector\DeadCode\Rector\If_; use PhpParser\Node; use PhpParser\Node\Expr\BinaryOp\BooleanOr; use PhpParser\Node\Stmt\If_; use PHPStan\Type\Constant\ConstantBooleanType; use Rector\DeadCode\NodeAnalyzer\SafeLeftTypeBooleanAndOrAnalyzer; use Rector\Rector\AbstractRector; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\DeadCode\Rector\If_\ReduceAlwaysFalseIfOrRector\ReduceAlwaysFalseIfOrRectorTest */ final class ReduceAlwaysFalseIfOrRector extends AbstractRector { /** * @readonly * @var \Rector\DeadCode\NodeAnalyzer\SafeLeftTypeBooleanAndOrAnalyzer */ private $safeLeftTypeBooleanAndOrAnalyzer; public function __construct(SafeLeftTypeBooleanAndOrAnalyzer $safeLeftTypeBooleanAndOrAnalyzer) { $this->safeLeftTypeBooleanAndOrAnalyzer = $safeLeftTypeBooleanAndOrAnalyzer; } public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Reduce always false in a if ( || ) condition', [new CodeSample(<<<'CODE_SAMPLE' class SomeClass { public function run(int $number) { if (! is_int($number) || $number > 50) { return 'yes'; } return 'no'; } } CODE_SAMPLE , <<<'CODE_SAMPLE' class SomeClass { public function run(int $number) { if ($number > 50) { return 'yes'; } return 'no'; } } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [If_::class]; } /** * @param If_ $node */ public function refactor(Node $node) : ?Node { if (!$node->cond instanceof BooleanOr) { return null; } $booleanOr = $node->cond; $conditionStaticType = $this->getType($booleanOr->left); if (!$conditionStaticType instanceof ConstantBooleanType) { return null; } if ($conditionStaticType->getValue()) { return null; } if (!$this->safeLeftTypeBooleanAndOrAnalyzer->isSafe($booleanOr)) { return null; } $node->cond = $booleanOr->right; return $node; } }
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