mirror of https://github.com/rectorphp/rector.git
101 lines
2.8 KiB
PHP
101 lines
2.8 KiB
PHP
<?php
|
|
|
|
declare (strict_types=1);
|
|
namespace Rector\CodingStyle\Rector\PostInc;
|
|
|
|
use PhpParser\Node;
|
|
use PhpParser\Node\Expr\PostDec;
|
|
use PhpParser\Node\Expr\PostInc;
|
|
use PhpParser\Node\Expr\PreDec;
|
|
use PhpParser\Node\Expr\PreInc;
|
|
use PhpParser\Node\Stmt\Expression;
|
|
use PhpParser\Node\Stmt\For_;
|
|
use Rector\Core\Rector\AbstractRector;
|
|
use Rector\NodeTypeResolver\Node\AttributeKey;
|
|
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
|
|
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
|
|
/**
|
|
* @see \Rector\Tests\CodingStyle\Rector\PostInc\PostIncDecToPreIncDecRector\PostIncDecToPreIncDecRectorTest
|
|
*/
|
|
final class PostIncDecToPreIncDecRector extends AbstractRector
|
|
{
|
|
public function getRuleDefinition() : RuleDefinition
|
|
{
|
|
return new RuleDefinition('Use ++$value or --$value instead of `$value++` or `$value--`', [new CodeSample(<<<'CODE_SAMPLE'
|
|
class SomeClass
|
|
{
|
|
public function run($value = 1)
|
|
{
|
|
$value++; echo $value;
|
|
$value--; echo $value;
|
|
}
|
|
}
|
|
CODE_SAMPLE
|
|
, <<<'CODE_SAMPLE'
|
|
class SomeClass
|
|
{
|
|
public function run($value = 1)
|
|
{
|
|
++$value; echo $value;
|
|
--$value; echo $value;
|
|
}
|
|
}
|
|
CODE_SAMPLE
|
|
)]);
|
|
}
|
|
/**
|
|
* @return array<class-string<Node>>
|
|
*/
|
|
public function getNodeTypes() : array
|
|
{
|
|
return [PostInc::class, PostDec::class];
|
|
}
|
|
/**
|
|
* @param PostInc|PostDec $node
|
|
*/
|
|
public function refactor(Node $node) : ?Node
|
|
{
|
|
$parentNode = $node->getAttribute(AttributeKey::PARENT_NODE);
|
|
if ($this->isAnExpression($parentNode)) {
|
|
return $this->processPrePost($node);
|
|
}
|
|
if (!$parentNode instanceof For_) {
|
|
return null;
|
|
}
|
|
if (\count($parentNode->loop) !== 1) {
|
|
return null;
|
|
}
|
|
if (!$this->nodeComparator->areNodesEqual($parentNode->loop[0], $node)) {
|
|
return null;
|
|
}
|
|
return $this->processPreFor($node, $parentNode);
|
|
}
|
|
private function isAnExpression(?Node $node = null) : bool
|
|
{
|
|
if (!$node instanceof Node) {
|
|
return \false;
|
|
}
|
|
return $node instanceof Expression;
|
|
}
|
|
/**
|
|
* @param \PhpParser\Node\Expr\PostInc|\PhpParser\Node\Expr\PostDec $node
|
|
* @return \PhpParser\Node\Expr\PreInc|\PhpParser\Node\Expr\PreDec
|
|
*/
|
|
private function processPrePost($node)
|
|
{
|
|
if ($node instanceof PostInc) {
|
|
return new PreInc($node->var);
|
|
}
|
|
return new PreDec($node->var);
|
|
}
|
|
/**
|
|
* @param \PhpParser\Node\Expr\PostInc|\PhpParser\Node\Expr\PostDec $node
|
|
* @return \PhpParser\Node\Expr\PreDec|\PhpParser\Node\Expr\PreInc
|
|
*/
|
|
private function processPreFor($node, For_ $for)
|
|
{
|
|
$for->loop = [$this->processPrePost($node)];
|
|
return $for->loop[0];
|
|
}
|
|
}
|