// Value-carrying `catch` rejection (ERR step E2.1b): when the failable LHS // carries a value, a non-diverging catch handler must produce a value of the // success type — a value-less (void) body is a type error (otherwise the // success and error paths couldn't merge to one value). Diverge instead // (`return` / `raise`) or yield a value. Positives: `examples/229-value-failable-consume.sx`. #import "modules/std.sx"; E :: error { Bad } parse :: (n: s32) -> (s32, !E) { if n < 0 { raise error.Bad; } return n; } main :: () -> s32 { x := parse(-1) catch e { print("oops\n"); }; // error: body yields no value return x; }