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(* $Id$ *)
open Names
open Rawterm
open Libobject
open Lib
(* Syntactic definitions. *)
let syntax_table = ref (Spmap.empty : rawconstr Spmap.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 := Spmap.empty);
Summary.survive_section = false }
let add_syntax_constant sp c =
syntax_table := Spmap.add sp c !syntax_table
(* Impossible de rendre récursive la définition de in_syntax_constant
et cache_syntax_constant, alors on triche ... *)
let cache_syntax_constant = ref (fun c -> failwith "Undefined function")
let (in_syntax_constant, out_syntax_constant) =
let od = {
cache_function = (fun c -> !cache_syntax_constant c);
load_function = (fun _ -> ());
open_function = (fun c -> !cache_syntax_constant c);
export_function = (fun x -> Some x) }
in
declare_object ("SYNTAXCONSTANT", od)
let _ =
cache_syntax_constant := fun (sp,c) ->
add_syntax_constant sp c;
Nametab.push_object sp (in_syntax_constant c)
let declare_syntactic_definition id c =
let _ = add_leaf id CCI (in_syntax_constant c) in ()
let search_syntactic_definition sp = Spmap.find sp !syntax_table
let locate_syntactic_definition sp =
let (sp,obj) = Nametab.locate_obj sp in
if object_tag obj = "SYNTAXCONSTANT" then sp else raise Not_found
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