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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(* $Id: modintern.ml 13323 2010-07-24 15:57:30Z herbelin $ *)
open Pp
open Util
open Names
open Entries
open Libnames
open Topconstr
open Constrintern
let rec make_mp mp = function
[] -> mp
| h::tl -> make_mp (MPdot(mp, label_of_id h)) tl
(*
(* Since module components are not put in the nametab we try to locate
the module prefix *)
exception BadRef
let lookup_qualid (modtype:bool) qid =
let rec make_mp mp = function
[] -> mp
| h::tl -> make_mp (MPdot(mp, label_of_id h)) tl
in
let rec find_module_prefix dir n =
if n<0 then raise Not_found;
let dir',dir'' = list_chop n dir in
let id',dir''' =
match dir'' with
| hd::tl -> hd,tl
| _ -> anomaly "This list should not be empty!"
in
let qid' = make_qualid dir' id' in
try
match Nametab.locate qid' with
| ModRef mp -> mp,dir'''
| _ -> raise BadRef
with
Not_found -> find_module_prefix dir (pred n)
in
try Nametab.locate qid
with Not_found ->
let (dir,id) = repr_qualid qid in
let pref_mp,dir' = find_module_prefix dir (List.length dir - 1) in
let mp =
List.fold_left (fun mp id -> MPdot (mp, label_of_id id)) pref_mp dir'
in
if modtype then
ModTypeRef (make_ln mp (label_of_id id))
else
ModRef (MPdot (mp,label_of_id id))
*)
(* Search for the head of [qid] in [binders].
If found, returns the module_path/kernel_name created from the dirpath
and the basename. Searches Nametab otherwise.
*)
let lookup_module (loc,qid) =
try
let mp = Nametab.locate_module qid in
Dumpglob.dump_modref loc mp "modtype"; mp
with
| Not_found -> Modops.error_not_a_module_loc loc (string_of_qualid qid)
let lookup_modtype (loc,qid) =
try
let mp = Nametab.locate_modtype qid in
Dumpglob.dump_modref loc mp "mod"; mp
with
| Not_found ->
Modops.error_not_a_modtype_loc loc (string_of_qualid qid)
let lookup_module_or_modtype (loc,qid) =
try
let mp = Nametab.locate_module qid in
Dumpglob.dump_modref loc mp "modtype"; (mp,true)
with Not_found -> try
let mp = Nametab.locate_modtype qid in
Dumpglob.dump_modref loc mp "mod"; (mp,false)
with Not_found ->
Modops.error_not_a_module_or_modtype_loc loc (string_of_qualid qid)
let transl_with_decl env = function
| CWith_Module ((_,fqid),qid) ->
With_Module (fqid,lookup_module qid)
| CWith_Definition ((_,fqid),c) ->
With_Definition (fqid,interp_constr Evd.empty env c)
let rec interp_modexpr env = function
| CMident qid ->
MSEident (lookup_module qid)
| CMapply (me1,me2) ->
let me1 = interp_modexpr env me1 in
let me2 = interp_modexpr env me2 in
MSEapply(me1,me2)
| CMwith _ -> Modops.error_with_in_module ()
let rec interp_modtype env = function
| CMident qid ->
MSEident (lookup_modtype qid)
| CMapply (mty1,me) ->
let mty' = interp_modtype env mty1 in
let me' = interp_modexpr env me in
MSEapply(mty',me')
| CMwith (mty,decl) ->
let mty = interp_modtype env mty in
let decl = transl_with_decl env decl in
MSEwith(mty,decl)
let rec interp_modexpr_or_modtype env = function
| CMident qid ->
let (mp,ismod) = lookup_module_or_modtype qid in
(MSEident mp, ismod)
| CMapply (me1,me2) ->
let me1,ismod1 = interp_modexpr_or_modtype env me1 in
let me2,ismod2 = interp_modexpr_or_modtype env me2 in
if not ismod2 then Modops.error_application_to_module_type ();
(MSEapply (me1,me2), ismod1)
| CMwith (me,decl) ->
let me,ismod = interp_modexpr_or_modtype env me in
let decl = transl_with_decl env decl in
if ismod then Modops.error_with_in_module ();
(MSEwith(me,decl), ismod)
|
