- Inserted additional check for equality types in check_mode_clause that
avoids ill-typed code to be generated.
- Mode inference algorithm now outputs additional diagnostic messages.
consts value :: ('a => 'v) => ('a,'v)expr => 'v
primrec
"value env (Cex v) = v"
"value env (Vex a) = env a"
"value env (Bex f e1 e2) = f (value env e1) (value env e2)"