src/Parser/Result.php
public function addStack(StackInterface $stack): ResultInterface
    {
        $this->stack->addStack($stack, false);
        return $this;
    }
public function addStack(StackInterface $stack): ResultInterface
    {
        $this->stack->addStack($stack, false);
        return $this;
    }
public function addStack ( StackInterface $ stack ) : ResultInterface { $ this -> stack -> addStack ( $ stack , false ) ; return $ this ; }
Add items to the stack

@param StackInterface $stack
@return ResultInterface
Add items to the stack