rector/rules/CodeQuality/Rector/FuncCall/SingleInArrayToCompareRecto...

123 lines
3.7 KiB
PHP

<?php
declare (strict_types=1);
namespace Rector\CodeQuality\Rector\FuncCall;
use PhpParser\Node;
use PhpParser\Node\Arg;
use PhpParser\Node\Expr\Array_;
use PhpParser\Node\Expr\ArrayItem;
use PhpParser\Node\Expr\BinaryOp\Equal;
use PhpParser\Node\Expr\BinaryOp\Identical;
use PhpParser\Node\Expr\BinaryOp\NotEqual;
use PhpParser\Node\Expr\BinaryOp\NotIdentical;
use PhpParser\Node\Expr\BooleanNot;
use PhpParser\Node\Expr\FuncCall;
use Rector\Rector\AbstractRector;
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
/**
* @see \Rector\Tests\CodeQuality\Rector\FuncCall\SingleInArrayToCompareRector\SingleInArrayToCompareRectorTest
*/
final class SingleInArrayToCompareRector extends AbstractRector
{
public function getRuleDefinition() : RuleDefinition
{
return new RuleDefinition('Changes in_array() with single element to ===', [new CodeSample(<<<'CODE_SAMPLE'
class SomeClass
{
public function run()
{
if (in_array(strtolower($type), ['$this'], true)) {
return strtolower($type);
}
}
}
CODE_SAMPLE
, <<<'CODE_SAMPLE'
class SomeClass
{
public function run()
{
if (strtolower($type) === '$this') {
return strtolower($type);
}
}
}
CODE_SAMPLE
)]);
}
/**
* @return array<class-string<Node>>
*/
public function getNodeTypes() : array
{
return [BooleanNot::class, FuncCall::class];
}
/**
* @param BooleanNot|FuncCall $node
*/
public function refactor(Node $node) : ?Node
{
if ($node instanceof BooleanNot) {
if (!$node->expr instanceof FuncCall) {
return null;
}
$firstArrayItem = $this->resolveArrayItem($node->expr);
if (!$firstArrayItem instanceof ArrayItem) {
return null;
}
return $this->processCompare($firstArrayItem, $node->expr, \true);
}
$firstArrayItem = $this->resolveArrayItem($node);
if (!$firstArrayItem instanceof ArrayItem) {
return null;
}
return $this->processCompare($firstArrayItem, $node);
}
private function resolveArrayItem(FuncCall $funcCall) : ?ArrayItem
{
if (!$this->isName($funcCall, 'in_array')) {
return null;
}
if ($funcCall->isFirstClassCallable()) {
return null;
}
if (!isset($funcCall->args[1])) {
return null;
}
if (!$funcCall->args[1] instanceof Arg) {
return null;
}
if (!$funcCall->args[1]->value instanceof Array_) {
return null;
}
/** @var Array_ $arrayNode */
$arrayNode = $funcCall->args[1]->value;
if (\count($arrayNode->items) !== 1) {
return null;
}
$firstArrayItem = $arrayNode->items[0];
if (!$firstArrayItem instanceof ArrayItem) {
return null;
}
if ($firstArrayItem->unpack) {
return null;
}
if (!isset($funcCall->getArgs()[0])) {
return null;
}
return $firstArrayItem;
}
private function processCompare(ArrayItem $firstArrayItem, FuncCall $funcCall, bool $isNegated = \false) : Node
{
$firstArrayItemValue = $firstArrayItem->value;
$firstArg = $funcCall->getArgs()[0];
// strict
if (isset($funcCall->getArgs()[2])) {
return $isNegated ? new NotIdentical($firstArg->value, $firstArrayItemValue) : new Identical($firstArg->value, $firstArrayItemValue);
}
return $isNegated ? new NotEqual($firstArg->value, $firstArrayItemValue) : new Equal($firstArg->value, $firstArrayItemValue);
}
}