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|
(************************************************************************)
(* 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: decls.ml 10841 2008-04-24 07:19:57Z herbelin $ *)
(** This module registers tables for some non-logical informations
associated declarations *)
open Names
open Term
open Sign
open Decl_kinds
open Libnames
(** Datas associated to section variables and local definitions *)
type variable_data =
dir_path * bool (* opacity *) * Univ.constraints * logical_kind
let vartab = ref (Idmap.empty : variable_data Idmap.t)
let _ = Summary.declare_summary "VARIABLE"
{ Summary.freeze_function = (fun () -> !vartab);
Summary.unfreeze_function = (fun ft -> vartab := ft);
Summary.init_function = (fun () -> vartab := Idmap.empty);
Summary.survive_module = false;
Summary.survive_section = false }
let add_variable_data id o = vartab := Idmap.add id o !vartab
let variable_path id = let (p,_,_,_) = Idmap.find id !vartab in p
let variable_opacity id = let (_,opaq,_,_) = Idmap.find id !vartab in opaq
let variable_kind id = let (_,_,_,k) = Idmap.find id !vartab in k
let variable_constraints id = let (_,_,cst,_) = Idmap.find id !vartab in cst
let variable_exists id = Idmap.mem id !vartab
(** Datas associated to global parameters and constants *)
let csttab = ref (Cmap.empty : logical_kind Cmap.t)
let _ = Summary.declare_summary "CONSTANT"
{ Summary.freeze_function = (fun () -> !csttab);
Summary.unfreeze_function = (fun ft -> csttab := ft);
Summary.init_function = (fun () -> csttab := Cmap.empty);
Summary.survive_module = false;
Summary.survive_section = false }
let add_constant_kind kn k = csttab := Cmap.add kn k !csttab
let constant_kind kn = Cmap.find kn !csttab
(** Miscellaneous functions. *)
let clear_proofs sign =
List.fold_right
(fun (id,c,t as d) signv ->
let d = if variable_opacity id then (id,None,t) else d in
Environ.push_named_context_val d signv) sign Environ.empty_named_context_val
let last_section_hyps dir =
fold_named_context
(fun (id,_,_) sec_ids ->
try if dir=variable_path id then id::sec_ids else sec_ids
with Not_found -> sec_ids)
(Environ.named_context (Global.env()))
~init:[]
let is_section_variable = function
| VarRef _ -> true
| _ -> false
|
