mirror of https://github.com/rectorphp/rector.git
98 lines
3.7 KiB
PHP
98 lines
3.7 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\Naming\Naming;
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use PhpParser\Node\Expr\ArrowFunction;
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use PhpParser\Node\Expr\Assign;
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use PhpParser\Node\Expr\Closure;
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use PhpParser\Node\Expr\Variable;
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use PhpParser\Node\Stmt\ClassMethod;
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use PhpParser\Node\Stmt\Function_;
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use Rector\Naming\PhpArray\ArrayFilter;
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use Rector\NodeNameResolver\NodeNameResolver;
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use Rector\PhpParser\Node\BetterNodeFinder;
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final class OverridenExistingNamesResolver
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{
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/**
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* @readonly
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* @var \Rector\Naming\PhpArray\ArrayFilter
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*/
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private $arrayFilter;
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/**
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* @readonly
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* @var \Rector\PhpParser\Node\BetterNodeFinder
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*/
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private $betterNodeFinder;
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/**
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* @readonly
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* @var \Rector\NodeNameResolver\NodeNameResolver
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*/
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private $nodeNameResolver;
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/**
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* @var array<int, array<int, string>>
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*/
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private $overridenExistingVariableNamesByClassMethod = [];
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public function __construct(ArrayFilter $arrayFilter, BetterNodeFinder $betterNodeFinder, NodeNameResolver $nodeNameResolver)
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{
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$this->arrayFilter = $arrayFilter;
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$this->betterNodeFinder = $betterNodeFinder;
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$this->nodeNameResolver = $nodeNameResolver;
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}
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/**
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* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure $functionLike
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*/
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public function hasNameInClassMethodForNew(string $variableName, $functionLike) : bool
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{
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$overridenVariableNames = $this->resolveOveriddenNamesForNew($functionLike);
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return \in_array($variableName, $overridenVariableNames, \true);
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}
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/**
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* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure|\PhpParser\Node\Expr\ArrowFunction $classMethod
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*/
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public function hasNameInFunctionLikeForParam(string $expectedName, $classMethod) : bool
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{
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/** @var Assign[] $assigns */
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$assigns = $this->betterNodeFinder->findInstanceOf((array) $classMethod->getStmts(), Assign::class);
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$usedVariableNames = [];
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foreach ($assigns as $assign) {
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if (!$assign->var instanceof Variable) {
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continue;
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}
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$variableName = $this->nodeNameResolver->getName($assign->var);
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if ($variableName === null) {
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continue;
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}
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$usedVariableNames[] = $variableName;
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}
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return \in_array($expectedName, $usedVariableNames, \true);
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}
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/**
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* @return string[]
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* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure $functionLike
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*/
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private function resolveOveriddenNamesForNew($functionLike) : array
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{
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$classMethodId = \spl_object_id($functionLike);
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if (isset($this->overridenExistingVariableNamesByClassMethod[$classMethodId])) {
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return $this->overridenExistingVariableNamesByClassMethod[$classMethodId];
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}
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$currentlyUsedNames = [];
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/** @var Assign[] $assigns */
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$assigns = $this->betterNodeFinder->findInstanceOf((array) $functionLike->stmts, Assign::class);
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foreach ($assigns as $assign) {
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/** @var Variable $assignVariable */
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$assignVariable = $assign->var;
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$currentVariableName = $this->nodeNameResolver->getName($assignVariable);
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if ($currentVariableName === null) {
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continue;
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}
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$currentlyUsedNames[] = $currentVariableName;
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}
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$currentlyUsedNames = \array_values($currentlyUsedNames);
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$currentlyUsedNames = $this->arrayFilter->filterWithAtLeastTwoOccurences($currentlyUsedNames);
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$this->overridenExistingVariableNamesByClassMethod[$classMethodId] = $currentlyUsedNames;
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return $currentlyUsedNames;
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}
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}
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