mirror of https://github.com/rectorphp/rector.git
123 lines
3.7 KiB
PHP
123 lines
3.7 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\CodeQuality\Rector\FuncCall;
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use PhpParser\Node;
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use PhpParser\Node\Arg;
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use PhpParser\Node\Expr\Array_;
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use PhpParser\Node\Expr\ArrayItem;
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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 PhpParser\Node\Expr\BooleanNot;
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use PhpParser\Node\Expr\FuncCall;
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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\FuncCall\SingleInArrayToCompareRector\SingleInArrayToCompareRectorTest
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*/
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final class SingleInArrayToCompareRector 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('Changes in_array() with single element to ===', [new CodeSample(<<<'CODE_SAMPLE'
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class SomeClass
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{
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public function run()
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{
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if (in_array(strtolower($type), ['$this'], true)) {
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return strtolower($type);
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}
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}
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}
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CODE_SAMPLE
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, <<<'CODE_SAMPLE'
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class SomeClass
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{
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public function run()
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{
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if (strtolower($type) === '$this') {
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return strtolower($type);
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}
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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 [BooleanNot::class, FuncCall::class];
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}
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/**
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* @param BooleanNot|FuncCall $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 BooleanNot) {
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if (!$node->expr instanceof FuncCall) {
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return null;
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}
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$firstArrayItem = $this->resolveArrayItem($node->expr);
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if (!$firstArrayItem instanceof ArrayItem) {
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return null;
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}
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return $this->processCompare($firstArrayItem, $node->expr, \true);
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}
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$firstArrayItem = $this->resolveArrayItem($node);
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if (!$firstArrayItem instanceof ArrayItem) {
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return null;
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}
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return $this->processCompare($firstArrayItem, $node);
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}
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private function resolveArrayItem(FuncCall $funcCall) : ?ArrayItem
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{
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if (!$this->isName($funcCall, 'in_array')) {
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return null;
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}
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if ($funcCall->isFirstClassCallable()) {
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return null;
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}
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if (!isset($funcCall->args[1])) {
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return null;
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}
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if (!$funcCall->args[1] instanceof Arg) {
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return null;
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}
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if (!$funcCall->args[1]->value instanceof Array_) {
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return null;
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}
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/** @var Array_ $arrayNode */
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$arrayNode = $funcCall->args[1]->value;
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if (\count($arrayNode->items) !== 1) {
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return null;
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}
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$firstArrayItem = $arrayNode->items[0];
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if (!$firstArrayItem instanceof ArrayItem) {
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return null;
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}
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if ($firstArrayItem->unpack) {
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return null;
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}
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if (!isset($funcCall->getArgs()[0])) {
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return null;
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}
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return $firstArrayItem;
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}
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private function processCompare(ArrayItem $firstArrayItem, FuncCall $funcCall, bool $isNegated = \false) : Node
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{
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$firstArrayItemValue = $firstArrayItem->value;
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$firstArg = $funcCall->getArgs()[0];
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// strict
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if (isset($funcCall->getArgs()[2])) {
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return $isNegated ? new NotIdentical($firstArg->value, $firstArrayItemValue) : new Identical($firstArg->value, $firstArrayItemValue);
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}
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return $isNegated ? new NotEqual($firstArg->value, $firstArrayItemValue) : new Equal($firstArg->value, $firstArrayItemValue);
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}
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}
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