Source code for kqcircuits.util.count_instances

# This code is part of KQCircuits
# Copyright (C) 2021 IQM Finland Oy
# This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
# version.
# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
# You should have received a copy of the GNU General Public License along with this program. If not, see
# The software distribution should follow IQM trademark policy for open-source software
# ( IQM welcomes contributions to the code. Please see our contribution agreements
# for individuals ( and organizations (

[docs] def count_instances_in_cell(cell, pcell_class): """Returns the number of pcell instances of type `pcell_class` in cell. The instances are counted from the entire hierarchy below cell, not only direct child instances. Also pcells with type derived from `pcell_class` are counted. Args: cell: cell from which the instances are counted pcell_class: pcell class of the instances Returns: The number of instances below `cell` for which `isinstance(inst.cell.pcell_declaration(), pcell_class) == True`. """ n = 0 if isinstance(cell.pcell_declaration(), pcell_class): n += 1 for inst in cell.each_inst(): # workaround for getting the cell due to KLayout bug, see # # TODO: replace by `inst_cell = inst.cell` once KLayout bug is fixed inst_cell = cell.layout().cell(inst.cell_index) n += count_instances_in_cell(inst_cell, pcell_class) return n