mirror of https://github.com/rectorphp/rector.git
106 lines
2.7 KiB
PHP
106 lines
2.7 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\Privatization\Rector\MethodCall;
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use PhpParser\Node;
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use PhpParser\Node\Expr\MethodCall;
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use PhpParser\Node\Expr\PropertyFetch;
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use PhpParser\Node\Expr\Variable;
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use PhpParser\Node\Stmt\Class_;
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use PhpParser\Node\Stmt\ClassMethod;
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use PhpParser\Node\Stmt\Return_;
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use Rector\Core\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\Privatization\Rector\MethodCall\PrivatizeLocalGetterToPropertyRector\PrivatizeLocalGetterToPropertyRectorTest
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*/
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final class PrivatizeLocalGetterToPropertyRector 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('Privatize getter of local property to property', [new CodeSample(<<<'CODE_SAMPLE'
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class SomeClass
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{
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private $some;
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public function run()
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{
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return $this->getSome() + 5;
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}
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private function getSome()
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{
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return $this->some;
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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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private $some;
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public function run()
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{
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return $this->some + 5;
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}
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private function getSome()
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{
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return $this->some;
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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 [MethodCall::class];
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}
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/**
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* @param MethodCall $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->var instanceof Variable) {
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return null;
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}
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if (!$this->nodeNameResolver->isName($node->var, 'this')) {
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return null;
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}
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$classLike = $this->betterNodeFinder->findParentType($node, Class_::class);
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if (!$classLike instanceof Class_) {
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return null;
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}
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$methodName = $this->getName($node->name);
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if ($methodName === null) {
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return null;
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}
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$classMethod = $classLike->getMethod($methodName);
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if (!$classMethod instanceof ClassMethod) {
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return null;
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}
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return $this->matchLocalPropertyFetchInGetterMethod($classMethod);
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}
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private function matchLocalPropertyFetchInGetterMethod(ClassMethod $classMethod) : ?PropertyFetch
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{
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$stmts = (array) $classMethod->stmts;
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if (\count($stmts) !== 1) {
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return null;
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}
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$onlyStmt = $stmts[0] ?? null;
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if (!$onlyStmt instanceof Return_) {
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return null;
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}
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$returnedExpr = $onlyStmt->expr;
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if (!$returnedExpr instanceof PropertyFetch) {
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return null;
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}
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return $returnedExpr;
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}
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}
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