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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
open Util
open System
type state = Lib.frozen * Summary.frozen
let lib_of_state = fst
let summary_of_state = snd
let replace_summary (lib,_) st = lib, st
let replace_lib (_,st) lib = lib, st
let freeze ~marshallable =
(Lib.freeze ~marshallable, Summary.freeze_summaries ~marshallable)
let unfreeze (fl,fs) =
Lib.unfreeze fl;
Summary.unfreeze_summaries fs
let extern_state s =
System.extern_state Coq_config.state_magic_number s (freeze ~marshallable:true)
let intern_state s =
unfreeze (with_magic_number_check (System.intern_state Coq_config.state_magic_number) s);
Library.overwrite_library_filenames s
(* Rollback. *)
let with_state_protection f x =
let st = freeze ~marshallable:false in
try
let a = f x in unfreeze st; a
with reraise ->
let reraise = CErrors.push reraise in
(unfreeze st; iraise reraise)
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