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https://github.com/rectorphp/rector.git
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7e7a2f067a
476cfb00cb
disable fallback for now
58 lines
1.7 KiB
PHP
58 lines
1.7 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\CodeQuality\Rector\Assign;
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use PhpParser\Node;
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use PhpParser\Node\Expr\Assign;
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use PhpParser\Node\Expr\BinaryOp;
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use Rector\PhpParser\Node\AssignAndBinaryMap;
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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\Assign\CombinedAssignRector\CombinedAssignRectorTest
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*/
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final class CombinedAssignRector extends AbstractRector
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{
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/**
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* @readonly
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* @var \Rector\PhpParser\Node\AssignAndBinaryMap
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*/
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private $assignAndBinaryMap;
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public function __construct(AssignAndBinaryMap $assignAndBinaryMap)
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{
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$this->assignAndBinaryMap = $assignAndBinaryMap;
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}
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public function getRuleDefinition() : RuleDefinition
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{
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return new RuleDefinition('Simplify $value = $value + 5; assignments to shorter ones', [new CodeSample('$value = $value + 5;', '$value += 5;')]);
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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 [Assign::class];
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}
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/**
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* @param Assign $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->expr instanceof BinaryOp) {
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return null;
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}
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/** @var BinaryOp $binaryNode */
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$binaryNode = $node->expr;
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if (!$this->nodeComparator->areNodesEqual($node->var, $binaryNode->left)) {
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return null;
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}
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$assignClass = $this->assignAndBinaryMap->getAlternative($binaryNode);
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if ($assignClass === null) {
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return null;
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}
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return new $assignClass($node->var, $binaryNode->right);
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}
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}
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