Hi,
I have a proc that needs to return many different and unrelated objects
(structs) base on internal decisions. I tried model this using SUM return type
(A or B). But this does not seem to work as I get a type mismatch on B path.
I know I can model SUM types using object hierarchies, but the types share
nothing and the syntax is a bit heavy for my simple usecase
Do procs in Nim support returning SUM types? (A or B)
Ex:
type
A = object
a_value:int
B = object
b_value:int
Ret = A or B
proc test(arg:int):Ret =
if arg < 0:
return A(a_value:arg)
else:
return B(b_value:arg)
let a = test(10) let b = test(-5)
