mirror of https://github.com/rectorphp/rector.git
87 lines
2.8 KiB
PHP
87 lines
2.8 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\CodeQuality\Rector\Equal;
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use PhpParser\Node;
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use PhpParser\Node\Expr\BinaryOp\Equal;
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use PhpParser\Node\Expr\BinaryOp\Identical;
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use PhpParser\Node\Expr\BinaryOp\NotEqual;
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use PhpParser\Node\Expr\BinaryOp\NotIdentical;
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use PHPStan\Type\MixedType;
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use PHPStan\Type\ObjectType;
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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\CodeQuality\Rector\Equal\UseIdenticalOverEqualWithSameTypeRector\UseIdenticalOverEqualWithSameTypeRectorTest
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*/
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final class UseIdenticalOverEqualWithSameTypeRector extends AbstractRector
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{
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public function getRuleDefinition() : RuleDefinition
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{
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return new RuleDefinition('Use ===/!== over ==/!=, it values have the same type', [new CodeSample(<<<'CODE_SAMPLE'
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class SomeClass
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{
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public function run(int $firstValue, int $secondValue)
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{
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$isSame = $firstValue == $secondValue;
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$isDiffernt = $firstValue != $secondValue;
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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(int $firstValue, int $secondValue)
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{
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$isSame = $firstValue === $secondValue;
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$isDiffernt = $firstValue !== $secondValue;
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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 [Equal::class, NotEqual::class];
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}
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/**
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* @param Equal|NotEqual $node
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*/
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public function refactor(Node $node) : ?Node
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{
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$leftStaticType = $this->nodeTypeResolver->getNativeType($node->left);
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$rightStaticType = $this->nodeTypeResolver->getNativeType($node->right);
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// objects can be different by content
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if ($leftStaticType instanceof ObjectType || $rightStaticType instanceof ObjectType) {
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return null;
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}
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if ($leftStaticType instanceof MixedType || $rightStaticType instanceof MixedType) {
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return null;
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}
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if ($leftStaticType->isString()->yes() && $rightStaticType->isString()->yes()) {
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return $this->processIdenticalOrNotIdentical($node);
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}
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// different types
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if (!$leftStaticType->equals($rightStaticType)) {
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return null;
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}
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return $this->processIdenticalOrNotIdentical($node);
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}
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/**
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* @param \PhpParser\Node\Expr\BinaryOp\Equal|\PhpParser\Node\Expr\BinaryOp\NotEqual $node
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* @return \PhpParser\Node\Expr\BinaryOp\Identical|\PhpParser\Node\Expr\BinaryOp\NotIdentical
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*/
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private function processIdenticalOrNotIdentical($node)
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{
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if ($node instanceof Equal) {
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return new Identical($node->left, $node->right);
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}
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return new NotIdentical($node->left, $node->right);
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}
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}
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