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• Check-expression-fns

Check-cond-expression

Check if a conditional expression is statically well-formed.

Signature

(check-cond-expression branches expr ctxt) → result

Arguments

branches — Guard (branch-listp branches).

expr — Guard (expressionp expr).

ctxt — Guard (contextp ctxt).

Returns

result — Type (type-resultp result).

We check every branch; see check-branch-list. In addition, we generate a proof obligation saying that the conditions are exhaustive.