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< ? php
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declare ( strict_types = 1 );
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namespace Rector\CodeQuality\Rector\Identical ;
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use PhpParser\Node ;
use PhpParser\Node\Expr\BinaryOp\Identical ;
use PhpParser\Node\Expr\BinaryOp\NotIdentical ;
use PhpParser\Node\Expr\BooleanNot ;
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use Rector\Rector\AbstractRector ;
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use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample ;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition ;
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/**
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* @ changelog https :// 3 v4l . org / GoEPq
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* @ see \Rector\Tests\CodeQuality\Rector\Identical\BooleanNotIdenticalToNotIdenticalRector\BooleanNotIdenticalToNotIdenticalRectorTest
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*/
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final class BooleanNotIdenticalToNotIdenticalRector 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 ( 'Negated identical boolean compare to not identical compare (does not apply to non-bool values)' , [ new CodeSample ( <<< 'CODE_SAMPLE'
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class SomeClass
{
public function run ()
{
$a = true ;
$b = false ;
var_dump ( ! $a === $b ); // true
var_dump ( ! ( $a === $b )); // true
var_dump ( $a !== $b ); // true
}
}
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CODE_SAMPLE
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, <<< 'CODE_SAMPLE'
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class SomeClass
{
public function run ()
{
$a = true ;
$b = false ;
var_dump ( $a !== $b ); // true
var_dump ( $a !== $b ); // true
var_dump ( $a !== $b ); // true
}
}
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CODE_SAMPLE
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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 [ Identical :: class , BooleanNot :: class ];
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}
/**
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* @ param Identical | BooleanNot $node
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*/
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public function refactor ( Node $node ) : ? Node
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{
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if ( $node instanceof Identical ) {
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return $this -> processIdentical ( $node );
}
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if ( $node -> expr instanceof Identical ) {
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$identical = $node -> expr ;
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$leftType = $this -> getType ( $identical -> left );
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if ( ! $leftType -> isBoolean () -> yes ()) {
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return null ;
}
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$rightType = $this -> getType ( $identical -> right );
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if ( ! $rightType -> isBoolean () -> yes ()) {
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return null ;
}
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return new NotIdentical ( $identical -> left , $identical -> right );
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}
return null ;
}
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private function processIdentical ( Identical $identical ) : ? NotIdentical
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{
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$leftType = $this -> getType ( $identical -> left );
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if ( ! $leftType -> isBoolean () -> yes ()) {
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return null ;
}
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$rightType = $this -> getType ( $identical -> right );
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if ( ! $rightType -> isBoolean () -> yes ()) {
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return null ;
}
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if ( $identical -> left instanceof BooleanNot ) {
return new NotIdentical ( $identical -> left -> expr , $identical -> right );
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}
return null ;
}
}