blob: 7f7fef4757c8fc0ac27504943e211aa72567c9e0 (
plain)
1
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
|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(* $Id: states.ml 11313 2008-08-07 11:15:03Z barras $ *)
open System
type state = Lib.frozen * Summary.frozen
let freeze () =
(Lib.freeze(), Summary.freeze_summaries())
let unfreeze (fl,fs) =
Lib.unfreeze fl;
Summary.unfreeze_summaries fs
let (extern_state,intern_state) =
let (raw_extern, raw_intern) =
extern_intern Coq_config.state_magic_number ".coq" in
(fun s -> raw_extern s (freeze())),
(fun s ->
unfreeze (raw_intern (Library.get_load_paths ()) s);
Library.overwrite_library_filenames s)
(* Rollback. *)
let with_heavy_rollback f x =
let st = freeze () in
try
f x
with reraise ->
(unfreeze st; raise reraise)
|
