Pinq\Parsing\PhpParser\Visitors\FunctionLocatorVisitor::leaveNode PHP Метод

    public function leaveNode(Node $node)
    {
        switch (true) {
            case $node instanceof Node\Stmt\Namespace_:
                $this->namespace = null;
                break;
            case $node instanceof Node\Stmt\Class_:
                $this->class = null;
                break;
            case $node instanceof Node\Stmt\Trait_:
                $this->trait = null;
                break;
            case $node instanceof Node\Stmt\Function_:
            case $node instanceof Node\Stmt\ClassMethod:
                $this->function = null;
                break;
            case $node instanceof Node\Expr\Closure:
                $this->closureNestingLevel--;
                break;
            default:
                break;
        }
    }