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<?php declare (strict_types=1); namespace Rector\Naming\Rector\Foreach_; use PhpParser\Node; use PhpParser\Node\Expr\PropertyFetch; use PhpParser\Node\Expr\StaticPropertyFetch; use PhpParser\Node\Expr\Variable; use PhpParser\Node\Stmt\ClassLike; use PhpParser\Node\Stmt\Foreach_; use PHPStan\Type\ThisType; use Rector\CodeQuality\NodeAnalyzer\ForeachAnalyzer; use Rector\Core\NodeAnalyzer\PropertyFetchAnalyzer; use Rector\Core\Rector\AbstractRector; use Rector\Naming\ExpectedNameResolver\InflectorSingularResolver; use Rector\StaticTypeMapper\ValueObject\Type\FullyQualifiedObjectType; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\Naming\Rector\Foreach_\RenameForeachValueVariableToMatchExprVariableRector\RenameForeachValueVariableToMatchExprVariableRectorTest */ final class RenameForeachValueVariableToMatchExprVariableRector extends AbstractRector { /** * @readonly * @var \Rector\Naming\ExpectedNameResolver\InflectorSingularResolver */ private $inflectorSingularResolver; /** * @readonly * @var \Rector\CodeQuality\NodeAnalyzer\ForeachAnalyzer */ private $foreachAnalyzer; /** * @readonly * @var \Rector\Core\NodeAnalyzer\PropertyFetchAnalyzer */ private $propertyFetchAnalyzer; public function __construct(InflectorSingularResolver $inflectorSingularResolver, ForeachAnalyzer $foreachAnalyzer, PropertyFetchAnalyzer $propertyFetchAnalyzer) { $this->inflectorSingularResolver = $inflectorSingularResolver; $this->foreachAnalyzer = $foreachAnalyzer; $this->propertyFetchAnalyzer = $propertyFetchAnalyzer; } public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Renames value variable name in foreach loop to match expression variable', [new CodeSample(<<<'CODE_SAMPLE' class SomeClass { public function run() { $array = []; foreach ($variables as $property) { $array[] = $property; } } } CODE_SAMPLE , <<<'CODE_SAMPLE' class SomeClass { public function run() { $array = []; foreach ($variables as $variable) { $array[] = $variable; } } } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [Foreach_::class]; } /** * @param Foreach_ $node */ public function refactor(Node $node) : ?Node { $isPropertyFetch = $this->propertyFetchAnalyzer->isPropertyFetch($node->expr); if (!$node->expr instanceof Variable && !$isPropertyFetch) { return null; } /** @var Variable|PropertyFetch|StaticPropertyFetch $expr */ $expr = $node->expr; if ($this->isNotCurrentClassLikePropertyFetch($expr, $isPropertyFetch)) { return null; } $exprName = $this->getName($expr); if ($exprName === null) { return null; } if ($node->keyVar instanceof Node) { return null; } $valueVarName = $this->getName($node->valueVar); if ($valueVarName === null) { return null; } $singularValueVarName = $this->inflectorSingularResolver->resolve($exprName); if ($singularValueVarName === $exprName) { return null; } if ($singularValueVarName === $valueVarName) { return null; } if ($this->foreachAnalyzer->isValueVarUsed($node, $singularValueVarName)) { return null; } return $this->processRename($node, $valueVarName, $singularValueVarName); } /** * @param \PhpParser\Node\Expr\PropertyFetch|\PhpParser\Node\Expr\StaticPropertyFetch|\PhpParser\Node\Expr\Variable $expr */ private function isNotCurrentClassLikePropertyFetch($expr, bool $isPropertyFetch) : bool { if (!$isPropertyFetch) { return \false; } /** @var PropertyFetch|StaticPropertyFetch $expr */ $variableType = $expr instanceof PropertyFetch ? $this->nodeTypeResolver->getType($expr->var) : $this->nodeTypeResolver->getType($expr->class); if ($variableType instanceof FullyQualifiedObjectType) { $currentClassLike = $this->betterNodeFinder->findParentType($expr, ClassLike::class); if ($currentClassLike instanceof ClassLike) { return !$this->nodeNameResolver->isName($currentClassLike, $variableType->getClassName()); } } return !$variableType instanceof ThisType; } private function processRename(Foreach_ $foreach, string $valueVarName, string $singularValueVarName) : Foreach_ { $foreach->valueVar = new Variable($singularValueVarName); $this->traverseNodesWithCallable($foreach->stmts, function (Node $node) use($singularValueVarName, $valueVarName) : ?Variable { if (!$node instanceof Variable) { return null; } if (!$this->isName($node, $valueVarName)) { return null; } return new Variable($singularValueVarName); }); return $foreach; } }
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