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<?php
declare (strict_types=1);
namespace Rector\Naming\Naming;
use PhpParser\Node\Expr\ArrowFunction;
use PhpParser\Node\Expr\Assign;
use PhpParser\Node\Expr\Closure;
use PhpParser\Node\Expr\Variable;
use PhpParser\Node\Stmt\ClassMethod;
use PhpParser\Node\Stmt\Function_;
use Rector\Core\PhpParser\Node\BetterNodeFinder;
use Rector\Naming\PhpArray\ArrayFilter;
use Rector\NodeNameResolver\NodeNameResolver;
final class OverridenExistingNamesResolver
{
/**
* @var array<string, array<int, string>>
*/
private $overridenExistingVariableNamesByClassMethod = [];
/**
* @readonly
* @var \Rector\Naming\PhpArray\ArrayFilter
*/
private $arrayFilter;
/**
* @readonly
* @var \Rector\Core\PhpParser\Node\BetterNodeFinder
*/
private $betterNodeFinder;
/**
* @readonly
* @var \Rector\NodeNameResolver\NodeNameResolver
*/
private $nodeNameResolver;
public function __construct(ArrayFilter $arrayFilter, BetterNodeFinder $betterNodeFinder, NodeNameResolver $nodeNameResolver)
{
$this->arrayFilter = $arrayFilter;
$this->betterNodeFinder = $betterNodeFinder;
$this->nodeNameResolver = $nodeNameResolver;
}
/**
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure $functionLike
*/
public function hasNameInClassMethodForNew(string $variableName, $functionLike) : bool
{
$overridenVariableNames = $this->resolveOveriddenNamesForNew($functionLike);
return \in_array($variableName, $overridenVariableNames, \true);
}
/**
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure|\PhpParser\Node\Expr\ArrowFunction $classMethod
*/
public function hasNameInFunctionLikeForParam(string $expectedName, $classMethod) : bool
{
/** @var Assign[] $assigns */
$assigns = $this->betterNodeFinder->findInstanceOf((array) $classMethod->getStmts(), Assign::class);
$usedVariableNames = [];
foreach ($assigns as $assign) {
if (!$assign->var instanceof Variable) {
continue;
}
$variableName = $this->nodeNameResolver->getName($assign->var);
if ($variableName === null) {
continue;
}
$usedVariableNames[] = $variableName;
}
return \in_array($expectedName, $usedVariableNames, \true);
}
/**
* @return string[]
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure $functionLike
*/
private function resolveOveriddenNamesForNew($functionLike) : array
{
$classMethodHash = \spl_object_hash($functionLike);
if (isset($this->overridenExistingVariableNamesByClassMethod[$classMethodHash])) {
return $this->overridenExistingVariableNamesByClassMethod[$classMethodHash];
}
$currentlyUsedNames = [];
/** @var Assign[] $assigns */
$assigns = $this->betterNodeFinder->findInstanceOf((array) $functionLike->stmts, Assign::class);
foreach ($assigns as $assign) {
/** @var Variable $assignVariable */
$assignVariable = $assign->var;
$currentVariableName = $this->nodeNameResolver->getName($assignVariable);
if ($currentVariableName === null) {
continue;
}
$currentlyUsedNames[] = $currentVariableName;
}
$currentlyUsedNames = \array_values($currentlyUsedNames);
$currentlyUsedNames = $this->arrayFilter->filterWithAtLeastTwoOccurences($currentlyUsedNames);
$this->overridenExistingVariableNamesByClassMethod[$classMethodHash] = $currentlyUsedNames;
return $currentlyUsedNames;
}
}
Zerion Mini Shell 1.0