Function layer

src/laybasic/laybasic/layObjectInstPath.h:155–159

* @brief Get the layer that the selected shape is on */

   *  @brief Get the layer that the selected shape is on 
   */
  unsigned int layer () const 
  {
    tl_assert (! is_cell_inst ());
    return (unsigned int) m_layer;
  }

  /**
   *  @brief Set the selected shape