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<?php
declare (strict_types=1);
namespace Rector\Core\PhpParser\NodeFinder;
use PhpParser\Node\Const_;
use PhpParser\Node\Expr\ClassConstFetch;
use PhpParser\Node\Stmt\Class_;
use PHPStan\Type\TypeWithClassName;
use Rector\Core\PhpParser\Node\BetterNodeFinder;
use Rector\NodeNameResolver\NodeNameResolver;
use Rector\NodeTypeResolver\NodeTypeResolver;
final class LocalConstantFinder
{
/**
* @readonly
* @var \Rector\NodeTypeResolver\NodeTypeResolver
*/
private $nodeTypeResolver;
/**
* @readonly
* @var \Rector\NodeNameResolver\NodeNameResolver
*/
private $nodeNameResolver;
/**
* @readonly
* @var \Rector\Core\PhpParser\Node\BetterNodeFinder
*/
private $betterNodeFinder;
public function __construct(NodeTypeResolver $nodeTypeResolver, NodeNameResolver $nodeNameResolver, BetterNodeFinder $betterNodeFinder)
{
$this->nodeTypeResolver = $nodeTypeResolver;
$this->nodeNameResolver = $nodeNameResolver;
$this->betterNodeFinder = $betterNodeFinder;
}
public function match(ClassConstFetch $classConstFetch) : ?Const_
{
$class = $this->betterNodeFinder->findParentType($classConstFetch, Class_::class);
if (!$class instanceof Class_) {
return null;
}
$constantClassType = $this->nodeTypeResolver->getType($classConstFetch->class);
if (!$constantClassType instanceof TypeWithClassName) {
return null;
}
if (!$this->nodeNameResolver->isName($class, $constantClassType->getClassName())) {
return null;
}
$constatName = $this->nodeNameResolver->getName($classConstFetch->name);
if ($constatName === null) {
return null;
}
return $this->findConstantByName($class, $constatName);
}
private function findConstantByName(Class_ $class, string $constatName) : ?Const_
{
foreach ($class->getConstants() as $classConsts) {
foreach ($classConsts->consts as $const) {
if (!$this->nodeNameResolver->isName($const->name, $constatName)) {
continue;
}
return $const;
}
}
return null;
}
}