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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2012 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(* Created by Hugo Herbelin from code formerly dispatched in
syntax_def.ml or tacinterp.ml, Sep 2009 *)
(* This file provides high-level name globalization functions *)
(* *)
open Pp
open Errors
open Libnames
open Globnames
open Misctypes
open Syntax_def
open Notation_term
let global_of_extended_global_head = function
| TrueGlobal ref -> ref
| SynDef kn ->
let _, syn_def = search_syntactic_definition kn in
let rec head_of = function
| NRef ref -> ref
| NApp (rc, _) -> head_of rc
| NCast (rc, _) -> head_of rc
| NLetIn (_, _, rc) -> head_of rc
| _ -> raise Not_found in
head_of syn_def
let global_of_extended_global = function
| TrueGlobal ref -> ref
| SynDef kn ->
match search_syntactic_definition kn with
| [],NRef ref -> ref
| [],NApp (NRef ref,[]) -> ref
| _ -> raise Not_found
let locate_global_with_alias ?(head=false) (loc,qid) =
let ref = Nametab.locate_extended qid in
try
if head then global_of_extended_global_head ref
else global_of_extended_global ref
with Not_found ->
user_err_loc (loc,"",pr_qualid qid ++
str " is bound to a notation that does not denote a reference.")
let global_inductive_with_alias r =
let (loc,qid as lqid) = qualid_of_reference r in
try match locate_global_with_alias lqid with
| IndRef ind -> ind
| ref ->
user_err_loc (loc_of_reference r,"global_inductive",
pr_reference r ++ spc () ++ str "is not an inductive type.")
with Not_found -> Nametab.error_global_not_found_loc loc qid
let global_with_alias ?head r =
let (loc,qid as lqid) = qualid_of_reference r in
try locate_global_with_alias ?head lqid
with Not_found -> Nametab.error_global_not_found_loc loc qid
let smart_global ?head = function
| AN r ->
global_with_alias ?head r
| ByNotation (loc,ntn,sc) ->
Notation.interp_notation_as_global_reference loc (fun _ -> true) ntn sc
let smart_global_inductive = function
| AN r ->
global_inductive_with_alias r
| ByNotation (loc,ntn,sc) ->
destIndRef
(Notation.interp_notation_as_global_reference loc isIndRef ntn sc)
|
