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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: syntax_def.ml 10730 2008-03-30 21:42:58Z herbelin $ *)
open Util
open Pp
open Names
open Libnames
open Topconstr
open Libobject
open Lib
open Nameops
(* Syntactic definitions. *)
let syntax_table = ref (KNmap.empty : interpretation KNmap.t)
let _ = Summary.declare_summary
"SYNTAXCONSTANT"
{ Summary.freeze_function = (fun () -> !syntax_table);
Summary.unfreeze_function = (fun ft -> syntax_table := ft);
Summary.init_function = (fun () -> syntax_table := KNmap.empty);
Summary.survive_module = false;
Summary.survive_section = false }
let add_syntax_constant kn c =
syntax_table := KNmap.add kn c !syntax_table
let load_syntax_constant i ((sp,kn),(local,pat,onlyparse)) =
if Nametab.exists_cci sp then
errorlabstrm "cache_syntax_constant"
(pr_id (basename sp) ++ str " already exists");
add_syntax_constant kn pat;
Nametab.push_syntactic_definition (Nametab.Until i) sp kn;
if not onlyparse then
(* Declare it to be used as long name *)
Notation.declare_uninterpretation (Notation.SynDefRule kn) pat
let open_syntax_constant i ((sp,kn),(_,pat,onlyparse)) =
Nametab.push_syntactic_definition (Nametab.Exactly i) sp kn;
if not onlyparse then
(* Redeclare it to be used as (short) name in case an other (distfix)
notation was declared inbetween *)
Notation.declare_uninterpretation (Notation.SynDefRule kn) pat
let cache_syntax_constant d =
load_syntax_constant 1 d
let subst_syntax_constant ((sp,kn),subst,(local,pat,onlyparse)) =
(local,subst_interpretation subst pat,onlyparse)
let classify_syntax_constant (_,(local,_,_ as o)) =
if local then Dispose else Substitute o
let export_syntax_constant (local,_,_ as o) =
if local then None else Some o
let (in_syntax_constant, out_syntax_constant) =
declare_object {(default_object "SYNTAXCONSTANT") with
cache_function = cache_syntax_constant;
load_function = load_syntax_constant;
open_function = open_syntax_constant;
subst_function = subst_syntax_constant;
classify_function = classify_syntax_constant;
export_function = export_syntax_constant }
let declare_syntactic_definition local id onlyparse pat =
let _ = add_leaf id (in_syntax_constant (local,pat,onlyparse)) in ()
let search_syntactic_definition loc kn =
KNmap.find kn !syntax_table
let locate_global_with_alias (loc,qid) =
match Nametab.extended_locate qid with
| TrueGlobal ref -> ref
| SyntacticDef kn ->
match search_syntactic_definition dummy_loc kn with
| [],ARef ref -> ref
| _ ->
user_err_loc (loc,"",pr_qualid qid ++
str " is bound to a notation that does not denote a reference")
let inductive_of_reference_with_alias r =
match locate_global_with_alias (qualid_of_reference r) with
| IndRef ind -> ind
| ref ->
user_err_loc (loc_of_reference r,"global_inductive",
pr_reference r ++ spc () ++ str "is not an inductive type")
let global_with_alias r =
let (loc,qid as lqid) = qualid_of_reference r in
try locate_global_with_alias lqid
with Not_found -> Nametab.error_global_not_found_loc loc qid
|
