stdcompat__either.ml1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70include Either (* type ('a, 'b) t = ('a, 'b) Stdcompat__init.either = | Left of 'a | Right of 'b let left v = Left v let right v = Right v let is_left e = match e with | Left _ -> true | Right _ -> false let is_right e = match e with | Left _ -> false | Right _ -> true let find_left e = match e with | Left v -> Some v | Right _ -> None let find_right e = match e with | Left _ -> None | Right v -> Some v let map_left f e = match e with | Left v -> Left (f v) | Right _ as e -> e let map_right f e = match e with | Left _ as e -> e | Right v -> Right (f v) let map ~left ~right e = match e with | Left v -> Left (left v) | Right v -> Right (right v) let fold ~left ~right e = match e with | Left v -> left v | Right v -> right v let iter = fold let for_all = fold let equal ~left ~right e1 e2 = match e1, e2 with | Left v1, Left v2 -> left v1 v2 | Right v1, Right v2 -> right v1 v2 | Left _, Right _ | Right _, Left _ -> false let compare ~left ~right e1 e2 = match e1, e2 with | Left v1, Left v2 -> left v1 v2 | Right v1, Right v2 -> right v1 v2 | Left _, Right _ -> -1 | Right _, Left _ -> 1 *)