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additional safety condition for terminal rules #72

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Merged
shanest merged 1 commit into from
Feb 4, 2026
Merged

additional safety condition for terminal rules #72

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4 changes: 2 additions & 2 deletions src/ultk/language/grammar/grammar.py
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Original file line number Diff line number Diff line change
Expand Up @@ -98,9 +98,9 @@ def _and(p1: bool, p2: bool) -> bool:
# parameters = {'name': Parameter} ordereddict, so we want the values
# each value is a Paramter, with .annotation being the actual annotation
rhs: tuple[Any, ...] | None = tuple(arg.annotation for arg in args.values())
# if one type annotation, a type of Referent, treat this as a terminal, no children = None RHS
# if one type annotation is class, a type of Referent, treat this as a terminal, no children = None RHS
# TODO: make this more general?
if rhs and len(rhs) == 1 and issubclass(rhs[0], Referent):
if rhs and len(rhs) == 1 and inspect.isclass(rhs[0]) and issubclass(rhs[0], Referent):
rhs = None
return cls(
name=rule_name,
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