commit d77702cd86066f3a97d740a95923fa598c2ff07b
Author: Matthias Koefferlein <matthias@koefferlein.de>
Date: Sat Mar 28 21:28:39 2020 +0100
Wildcard expansion feature on layer mapping
Finished feature, added doc and test.
The solution is to use placeholder indexes for the
layer mapping which are substituted by the real
layers when they are encountered.
commit af60b5f18acfe3c5e2f1d4e6bc6ee752a246dc0d
Author: Matthias Koefferlein <matthias@koefferlein.de>
Date: Sat Mar 28 19:11:32 2020 +0100
Preparations for new feature: introduce relative and wildcard target layer specs
Sometimes, shapes from child cells were propagated into
parent cells in the L2N and LVSDB output.
Because of this fix, many testdata files have to be updated.
Problem was caching which did not take into account the array nature
of instances.
This fix also moves the cache one level below so it is effective also
when instance tree traversal happens. This might speed up things too.
Needs testing.
One unit test was failing because the netlist compare did not
properly consider dropped pins:
* A severe bug ("g1" should be "g2")
* Incomplete detection of dropped pins upwards in the hierarchy
The general pin and net mapping scheme has been enhanced so that
net mapping to "0" is valid (this will happen in case of dropped
pins) and this condition is used to detect pins without match
requirement.
The implementation uses extrapolation of strings in the
"Expressions" framework.
There is how:
* $(tech_name) -> substituted by the technology name
* $(tech_dir) -> substituted by the directory the technology file is stored in
* $(tech_file) -> substituted by the absolute path to the tech file
* $(appdata_path) -> substituted by KLayout's home directory (e.g. ~/.klayout)
* $(env('X')) -> substituted by the environment variable $X
The problem is solved by always producing subcircuits for cell
instances, even if there are no connections.
The netlist comparer had to be adjusted too because subcircuits
without pins were used for representing "unknown" subcircuit pairing.
In addition, this patch should lead to a better matching of
parallel subcircuit configurations where two different subcircuits
are entirely parallel.