29 lines
745 B
Python
29 lines
745 B
Python
"""
|
|
Some utility code that gets reused
|
|
"""
|
|
from typing import Set, Tuple
|
|
|
|
from .types import connectivity_t, layer_t
|
|
|
|
|
|
def connectivity2layers(
|
|
connectivity: connectivity_t,
|
|
) -> Tuple[Set[layer_t], Set[layer_t]]:
|
|
"""
|
|
Extract the set of all metal layers and the set of all via layers
|
|
from the connectivity description.
|
|
"""
|
|
metal_layers = set()
|
|
via_layers = set()
|
|
for top, via, bot in connectivity:
|
|
metal_layers.add(top)
|
|
metal_layers.add(bot)
|
|
if via is not None:
|
|
via_layers.add(via)
|
|
|
|
both = metal_layers.intersection(via_layers)
|
|
if both:
|
|
raise Exception(f'The following layers are both vias and metals!? {both}')
|
|
|
|
return metal_layers, via_layers
|