Source file code_error.ml

(*******************************************************************************)
(*  Volgo - a Versatile OCaml Library for Git Operations                       *)
(*  Copyright (C) 2024-2025 Mathieu Barbin <mathieu.barbin@gmail.com>          *)
(*                                                                             *)
(*  This file is part of Volgo.                                                *)
(*                                                                             *)
(*  Volgo 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 any later     *)
(*  version, with the LGPL-3.0 Linking Exception.                              *)
(*                                                                             *)
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(*  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS  *)
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(*  You should have received a copy of the GNU Lesser General Public License   *)
(*  and the LGPL-3.0 Linking Exception along with this library. If not, see    *)
(*  <http://www.gnu.org/licenses/> and <https://spdx.org>, respectively.       *)
(*******************************************************************************)

type t =
  { message : string
  ; data : (string * Dyn.t) list
  }

exception E of t

let raise message data = raise (E { message; data })
let to_dyn { message; data } = Dyn.Tuple [ Dyn.String message; Record data ]

let () =
  Printexc.register_printer (function
    | E t -> Some (Dyn.to_string (to_dyn t))
    | _ -> None [@coverage off])
;;