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(***********************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA-Rocquencourt & LRI-CNRS-Orsay *)
(* \VV/ *************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(***********************************************************************)
(* $Id$ *)
open Names
open Closure
(* Opaque constants *)
let cst_transp = ref KNpred.full
let set_opaque_const kn = cst_transp := KNpred.remove kn !cst_transp
let set_transparent_const kn = cst_transp := KNpred.add kn !cst_transp
let is_opaque_cst kn = not (KNpred.mem kn !cst_transp)
(* Unfold the first only if it is not opaque and the second is
opaque *)
let const_order kn1 kn2 = is_opaque_cst kn2 & not (is_opaque_cst kn1)
(* Opaque variables *)
let var_transp = ref Idpred.full
let set_opaque_var kn = var_transp := Idpred.remove kn !var_transp
let set_transparent_var kn = var_transp := Idpred.add kn !var_transp
let is_opaque_var kn = not (Idpred.mem kn !var_transp)
let var_order id1 id2 = is_opaque_var id2 & not (is_opaque_var id1)
(* *)
let oracle_order k1 k2 =
match (k1,k2) with
(ConstKey kn1, ConstKey kn2) -> const_order kn1 kn2
| (VarKey id1, VarKey id2) -> var_order id1 id2
| _ -> false
(* summary operations *)
let init() = (cst_transp := KNpred.full; var_transp := Idpred.full)
let freeze () = (!var_transp, !cst_transp)
let unfreeze (vo,co) = (cst_transp := co; var_transp := vo)
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