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[Downgrade] [PHP 7.2] Make DowngradeParameterTypeWideningRector always downgrade to phpdoc type (#390)
112 lines
3.2 KiB
PHP
112 lines
3.2 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\Php54\Rector\Break_;
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use PhpParser\Node;
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use PhpParser\Node\Expr\Variable;
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use PhpParser\Node\Scalar\LNumber;
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use PhpParser\Node\Stmt\Break_;
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use PhpParser\Node\Stmt\Continue_;
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use PHPStan\Type\Constant\ConstantIntegerType;
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use PHPStan\Type\ConstantType;
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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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* @changelog https://www.php.net/manual/en/control-structures.continue.php https://www.php.net/manual/en/control-structures.break.php
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*
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* @see \Rector\Tests\Php54\Rector\Break_\RemoveZeroBreakContinueRector\RemoveZeroBreakContinueRectorTest
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*/
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final class RemoveZeroBreakContinueRector extends \Rector\Core\Rector\AbstractRector
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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('Remove 0 from break and continue', [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($random)
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{
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continue 0;
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break 0;
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$five = 5;
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continue $five;
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break $random;
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}
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}
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CODE_SAMPLE
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, <<<'CODE_SAMPLE'
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class SomeClass
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{
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public function run($random)
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{
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continue;
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break;
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$five = 5;
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continue 5;
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break;
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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\Break_::class, \PhpParser\Node\Stmt\Continue_::class];
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}
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/**
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* @param Break_|Continue_ $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->num === null) {
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return null;
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}
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if ($node->num instanceof \PhpParser\Node\Scalar\LNumber) {
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$number = $this->valueResolver->getValue($node->num);
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if ($number > 1) {
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return null;
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}
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if ($number === 0) {
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$node->num = null;
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return $node;
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}
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return null;
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}
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if ($node->num instanceof \PhpParser\Node\Expr\Variable) {
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return $this->processVariableNum($node, $node->num);
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}
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return null;
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}
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/**
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* @param \PhpParser\Node\Stmt\Break_|\PhpParser\Node\Stmt\Continue_ $stmt
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*/
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private function processVariableNum($stmt, \PhpParser\Node\Expr\Variable $numVariable) : ?\PhpParser\Node
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{
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$staticType = $this->getStaticType($numVariable);
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if ($staticType instanceof \PHPStan\Type\ConstantType) {
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if ($staticType instanceof \PHPStan\Type\Constant\ConstantIntegerType) {
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if ($staticType->getValue() === 0) {
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$stmt->num = null;
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return $stmt;
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}
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if ($staticType->getValue() > 0) {
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$stmt->num = new \PhpParser\Node\Scalar\LNumber($staticType->getValue());
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return $stmt;
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}
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}
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return $stmt;
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}
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// remove variable
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$stmt->num = null;
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return null;
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}
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}
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