Module coverage 

The completeness table. Spec §4.1.

One cell per construct and language, each stating the rule that covers it or that it is deliberately uncovered, with a reason.

The table has no catch-all arm. A construct added to the common AST without a decision here is a compile error, not a language backend that silently emits nothing for it.

Enums

ConstructKind

The constructs a rule catalogue has to account for.

Coverage

What a cell of the table says.

Functions

cell_count

How many cells the table has.

coverage_of

What covers construct in language.

covered_count

How many cells of the table a rule covers.