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Field projections (e.`f) were resolved by looking up the field name as an operator, which requires the projection operator -- and hence the theory declaring the record type -- to be in scope. As a result, a projection through a type from a non-imported theory failed. When the record type is known, resolve the projector directly from the type: the projection operator lives in the theory declaring the type and is reachable by its qualified name even when that theory is not imported. This also disambiguates same-named fields of unrelated records by type. Fall back to the name-based search only when the type is not yet known.
fdupress
approved these changes
Jun 12, 2026
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Field projections (
e.f`) were resolved by looking up the field name as an operator, which requires the projection operator -- and hence the theory declaring the record type -- to be in scope. As a result, a projection through a type from a non-imported theory failed.When the record type is known, resolve the projector directly from the type: the projection operator lives in the theory declaring the type and is reachable by its qualified name even when that theory is not imported. This also disambiguates same-named fields of unrelated records by type. Fall back to the name-based search only when the type is not yet known.
Closes #1011.