were incorrect assumptions made in the code from 35 years back or so,
for the case where the CIF layer halo is larger than the size/separation
of the cells in the array. The new code will prevent the array routine
from copying hierarchical additions to the mask layers outside of the
array area. Whether or not the new code has its own faulty assumptions
remains to be seen through thorough vetting.
values in a mask hints property, and added back the handling of
mask hints in the top level cell, since the hierarchical function
on cells does not apply the function to the top level.
and made the default behavior equivalent to "see-vendor". While it is
true that running "cif see" on a readonly cell shows layers that are
not necessarily representative of what is in the file, the opposite
behavior manifests itself in ways that are confusing.
disagreements between parent and child cells on GDS generation for
templayers, as these layers are not output; any resulting differences
showing up eventually on an output layer will be reported.
hierarchical processing from CIFGenSubcells() and CIFGenArrays(), and to
avoid certain operators that are useless and harmful when applied
hierarchically; namely squares, slots, bbox, boundary, and net.
templayers. This permits some useful interactions like growing to
the size of a bounding box, or abutment box, as well as many other
possibilities. Also: Corrected the use of "cif see" for the boundary
(abutment box) layer, which was not working because the "cif see"
command uses a flattened CellDef that does not have the boundary
property of the cell it was flattened from.
Tim Edwards