lam_exit_code.ml

(* Copyright (C) 2015 - 2016 Bloomberg Finance L.P.
 * Copyright (C) 2017 - Hongbo Zhang, Authors of ReScript 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
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 * or link a "work that uses the Library" with a publicly distributed version
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 * to comply with the obligations normally placed on you by section 4 of the
 * LGPL version 3 (or the corresponding section of a later version of the LGPL
 * should you choose to use a later version).
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let has_exit_code lam exits =
  let rec aux (lam : Lam.t) =
    match lam with
    | Lfunction _ -> false
    (* static exit can not cross function boundary *)
    | Lstaticraise (p, _) when exits p -> true
    | _ -> Lam_iter.inner_exists lam aux
  in
  aux lam

let rec has_exit (lam : Lam.t) =
  match lam with
  | Lfunction _ -> false
  | Lstaticraise (_, _) -> true
  | _ -> Lam_iter.inner_exists lam has_exit