39 lines
1.7 KiB
OCaml
39 lines
1.7 KiB
OCaml
(**************************************************************************)
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(* *)
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(* OCaml *)
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(* *)
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(* The OCaml programmers *)
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(* *)
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(* Copyright 2018 Institut National de Recherche en Informatique et *)
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(* en Automatique. *)
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(* *)
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(* All rights reserved. This file is distributed under the terms of *)
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(* the GNU Lesser General Public License version 2.1, with the *)
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(* special exception on linking described in the file LICENSE. *)
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(* *)
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(**************************************************************************)
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external id : 'a -> 'a = "%identity"
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let const c _ = c
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let flip f x y = f y x
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let negate p v = not (p v)
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exception Finally_raised of exn
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let () = Printexc.register_printer @@ function
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| Finally_raised exn -> Some ("Fun.Finally_raised: " ^ Printexc.to_string exn)
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| _ -> None
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let protect ~(finally : unit -> unit) work =
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let finally_no_exn () =
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try finally () with e ->
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let bt = Printexc.get_raw_backtrace () in
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Printexc.raise_with_backtrace (Finally_raised e) bt
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in
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match work () with
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| result -> finally_no_exn () ; result
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| exception work_exn ->
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let work_bt = Printexc.get_raw_backtrace () in
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finally_no_exn () ;
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Printexc.raise_with_backtrace work_exn work_bt
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