package lsp

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Source file comparator.ml

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module type S = sig
  type t

  val compare : t -> t -> Ordering.t
end

module type OPS = sig
  type t

  val equal : t -> t -> bool

  val ( = ) : t -> t -> bool

  val ( >= ) : t -> t -> bool

  val ( > ) : t -> t -> bool

  val ( <= ) : t -> t -> bool

  val ( < ) : t -> t -> bool

  val ( <> ) : t -> t -> bool
end

module Operators (X : S) = struct
  type t = X.t

  let ( = ) a b =
    match X.compare a b with
    | Eq -> true
    | Gt
    | Lt ->
      false

  let equal = ( = )

  let ( <> ) a b = not (a = b)

  let ( >= ) a b =
    match X.compare a b with
    | Gt
    | Eq ->
      true
    | Lt -> false

  let ( > ) a b =
    match X.compare a b with
    | Gt -> true
    | Lt
    | Eq ->
      false

  let ( <= ) a b =
    match X.compare a b with
    | Lt
    | Eq ->
      true
    | Gt -> false

  let ( < ) a b =
    match X.compare a b with
    | Lt -> true
    | Gt
    | Eq ->
      false
end