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[ILibraryView / Pattern] flatten() shouldn't drop ports-only patterns if flatten_ports=True

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Jan Petykiewicz 2026-03-30 21:11:00 -07:00
commit b843ffb4d3
4 changed files with 38 additions and 3 deletions
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masque/library.py
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@ -303,7 +303,8 @@ class ILibraryView(Mapping[str, 'Pattern'], metaclass=ABCMeta):
target_pat = flattened[target]
if target_pat is None:
raise PatternError(f'Circular reference in {name} to {target}')
if target_pat.is_empty(): # avoid some extra allocations
ports_only = flatten_ports and bool(target_pat.ports)
if target_pat.is_empty() and not ports_only: # avoid some extra allocations
continue
for ref in pat.refs[target]: