+++ /dev/null
-(* Copyright (C) 2004, HELM Team.
- *
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- *
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- *
- * For details, see the HELM World-Wide-Web page,
- * http://helm.cs.unibo.it/
- *)
-
-(* $Id: disambiguate.ml 7760 2007-10-26 12:37:21Z sacerdot $ *)
-
-open Printf
-
-open DisambiguateTypes
-open UriManager
-
-module Ast = CicNotationPt
-
-(* the integer is an offset to be added to each location *)
-exception NoWellTypedInterpretation of
- int *
- ((Stdpp.location list * string * string) list *
- (DisambiguateTypes.domain_item * DisambiguateTypes.codomain_item) list *
- Stdpp.location option * string Lazy.t * bool) list
-exception PathNotWellFormed
-
- (** raised when an environment is not enough informative to decide *)
-exception Try_again of string Lazy.t
-
-type aliases = bool * DisambiguateTypes.environment
-type 'a disambiguator_input = string * int * 'a
-
-type domain = domain_tree list
-and domain_tree = Node of Stdpp.location list * domain_item * domain
-
-let rec string_of_domain =
- function
- [] -> ""
- | Node (_,domain_item,l)::tl ->
- DisambiguateTypes.string_of_domain_item domain_item ^
- " [ " ^ string_of_domain l ^ " ] " ^ string_of_domain tl
-
-let rec filter_map_domain f =
- function
- [] -> []
- | Node (locs,domain_item,l)::tl ->
- match f locs domain_item with
- None -> filter_map_domain f l @ filter_map_domain f tl
- | Some res -> res :: filter_map_domain f l @ filter_map_domain f tl
-
-let rec map_domain f =
- function
- [] -> []
- | Node (locs,domain_item,l)::tl ->
- f locs domain_item :: map_domain f l @ map_domain f tl
-
-let uniq_domain dom =
- let rec aux seen =
- function
- [] -> seen,[]
- | Node (locs,domain_item,l)::tl ->
- if List.mem domain_item seen then
- let seen,l = aux seen l in
- let seen,tl = aux seen tl in
- seen, l @ tl
- else
- let seen,l = aux (domain_item::seen) l in
- let seen,tl = aux seen tl in
- seen, Node (locs,domain_item,l)::tl
- in
- snd (aux [] dom)
-
-let debug = false
-let debug_print s = if debug then prerr_endline (Lazy.force s) else ()
-
-(*
- (** print benchmark information *)
-let benchmark = true
-let max_refinements = ref 0 (* benchmarking is not thread safe *)
-let actual_refinements = ref 0
-let domain_size = ref 0
-let choices_avg = ref 0.
-*)
-
-let descr_of_domain_item = function
- | Id s -> s
- | Symbol (s, _) -> s
- | Num i -> string_of_int i
-
-type 'a test_result =
- | Ok of 'a * Cic.metasenv
- | Ko of Stdpp.location option * string Lazy.t
- | Uncertain of Stdpp.location option * string Lazy.t
-
-let refine_term metasenv context uri term ugraph ~localization_tbl =
-(* if benchmark then incr actual_refinements; *)
- assert (uri=None);
- debug_print (lazy (sprintf "TEST_INTERPRETATION: %s" (CicPp.ppterm term)));
- try
- let term', _, metasenv',ugraph1 =
- CicRefine.type_of_aux' metasenv context term ugraph ~localization_tbl in
- debug_print (lazy (sprintf "OK!!!"));
- (Ok (term', metasenv')),ugraph1
- with
- exn ->
- let rec process_exn loc =
- function
- HExtlib.Localized (loc,exn) -> process_exn (Some loc) exn
- | CicRefine.Uncertain msg ->
- debug_print (lazy ("UNCERTAIN!!! [" ^ (Lazy.force msg) ^ "] " ^ CicPp.ppterm term)) ;
- Uncertain (loc,msg),ugraph
- | CicRefine.RefineFailure msg ->
- debug_print (lazy (sprintf "PRUNED!!!\nterm%s\nmessage:%s"
- (CicPp.ppterm term) (Lazy.force msg)));
- Ko (loc,msg),ugraph
- | exn -> raise exn
- in
- process_exn None exn
-
-let refine_obj metasenv context uri obj ugraph ~localization_tbl =
- assert (context = []);
- debug_print (lazy (sprintf "TEST_INTERPRETATION: %s" (CicPp.ppobj obj))) ;
- try
- let obj', metasenv,ugraph =
- CicRefine.typecheck metasenv uri obj ~localization_tbl
- in
- debug_print (lazy (sprintf "OK!!!"));
- (Ok (obj', metasenv)),ugraph
- with
- exn ->
- let rec process_exn loc =
- function
- HExtlib.Localized (loc,exn) -> process_exn (Some loc) exn
- | CicRefine.Uncertain msg ->
- debug_print (lazy ("UNCERTAIN!!! [" ^ (Lazy.force msg) ^ "] " ^ CicPp.ppobj obj)) ;
- Uncertain (loc,msg),ugraph
- | CicRefine.RefineFailure msg ->
- debug_print (lazy (sprintf "PRUNED!!!\nterm%s\nmessage:%s"
- (CicPp.ppobj obj) (Lazy.force msg))) ;
- Ko (loc,msg),ugraph
- | exn -> raise exn
- in
- process_exn None exn
-
-let resolve (env: codomain_item Environment.t) (item: domain_item) ?(num = "") ?(args = []) () =
- try
- snd (Environment.find item env) env num args
- with Not_found ->
- failwith ("Domain item not found: " ^
- (DisambiguateTypes.string_of_domain_item item))
-
- (* TODO move it to Cic *)
-let find_in_context name context =
- let rec aux acc = function
- | [] -> raise Not_found
- | Cic.Name hd :: tl when hd = name -> acc
- | _ :: tl -> aux (acc + 1) tl
- in
- aux 1 context
-
-let interpretate_term ?(create_dummy_ids=false) ~(context: Cic.name list) ~env ~uri ~is_path ast
- ~localization_tbl
-=
- (* create_dummy_ids shouldbe used only for interpretating patterns *)
- assert (uri = None);
- let rec aux ~localize loc (context: Cic.name list) = function
- | CicNotationPt.AttributedTerm (`Loc loc, term) ->
- let res = aux ~localize loc context term in
- if localize then Cic.CicHash.add localization_tbl res loc;
- res
- | CicNotationPt.AttributedTerm (_, term) -> aux ~localize loc context term
- | CicNotationPt.Appl (CicNotationPt.Symbol (symb, i) :: args) ->
- let cic_args = List.map (aux ~localize loc context) args in
- resolve env (Symbol (symb, i)) ~args:cic_args ()
- | CicNotationPt.Appl terms ->
- Cic.Appl (List.map (aux ~localize loc context) terms)
- | CicNotationPt.Binder (binder_kind, (var, typ), body) ->
- let cic_type = aux_option ~localize loc context (Some `Type) typ in
- let cic_name = CicNotationUtil.cic_name_of_name var in
- let cic_body = aux ~localize loc (cic_name :: context) body in
- (match binder_kind with
- | `Lambda -> Cic.Lambda (cic_name, cic_type, cic_body)
- | `Pi
- | `Forall -> Cic.Prod (cic_name, cic_type, cic_body)
- | `Exists ->
- resolve env (Symbol ("exists", 0))
- ~args:[ cic_type; Cic.Lambda (cic_name, cic_type, cic_body) ] ())
- | CicNotationPt.Case (term, indty_ident, outtype, branches) ->
- let cic_term = aux ~localize loc context term in
- let cic_outtype = aux_option ~localize loc context None outtype in
- let do_branch ((head, _, args), term) =
- let rec do_branch' context = function
- | [] -> aux ~localize loc context term
- | (name, typ) :: tl ->
- let cic_name = CicNotationUtil.cic_name_of_name name in
- let cic_body = do_branch' (cic_name :: context) tl in
- let typ =
- match typ with
- | None -> Cic.Implicit (Some `Type)
- | Some typ -> aux ~localize loc context typ
- in
- Cic.Lambda (cic_name, typ, cic_body)
- in
- do_branch' context args
- in
- let indtype_uri, indtype_no =
- if create_dummy_ids then
- (UriManager.uri_of_string "cic:/fake_indty.con", 0)
- else
- match indty_ident with
- | Some (indty_ident, _) ->
- (match resolve env (Id indty_ident) () with
- | Cic.MutInd (uri, tyno, _) -> (uri, tyno)
- | Cic.Implicit _ ->
- raise (Try_again (lazy "The type of the term to be matched
- is still unknown"))
- | _ ->
- raise (Invalid_choice (Some loc, lazy "The type of the term to be matched is not (co)inductive!")))
- | None ->
- let rec fst_constructor =
- function
- (Ast.Pattern (head, _, _), _) :: _ -> head
- | (Ast.Wildcard, _) :: tl -> fst_constructor tl
- | [] -> raise (Invalid_choice (Some loc, lazy "The type of the term to be matched cannot be determined because it is an inductive type without constructors or because all patterns use wildcards"))
- in
- (match resolve env (Id (fst_constructor branches)) () with
- | Cic.MutConstruct (indtype_uri, indtype_no, _, _) ->
- (indtype_uri, indtype_no)
- | Cic.Implicit _ ->
- raise (Try_again (lazy "The type of the term to be matched
- is still unknown"))
- | _ ->
- raise (Invalid_choice (Some loc, lazy "The type of the term to be matched is not (co)inductive!")))
- in
- let branches =
- if create_dummy_ids then
- List.map
- (function
- Ast.Wildcard,term -> ("wildcard",None,[]), term
- | Ast.Pattern _,_ ->
- raise (Invalid_choice (Some loc, lazy "Syntax error: the left hand side of a branch patterns must be \"_\""))
- ) branches
- else
- match fst(CicEnvironment.get_obj CicUniv.empty_ugraph indtype_uri) with
- Cic.InductiveDefinition (il,_,leftsno,_) ->
- let _,_,_,cl =
- try
- List.nth il indtype_no
- with _ -> assert false
- in
- let rec count_prod t =
- match CicReduction.whd [] t with
- Cic.Prod (_, _, t) -> 1 + (count_prod t)
- | _ -> 0
- in
- let rec sort branches cl =
- match cl with
- [] ->
- let rec analyze unused unrecognized useless =
- function
- [] ->
- if unrecognized != [] then
- raise (Invalid_choice
- (Some loc,
- lazy
- ("Unrecognized constructors: " ^
- String.concat " " unrecognized)))
- else if useless > 0 then
- raise (Invalid_choice
- (Some loc,
- lazy
- ("The last " ^ string_of_int useless ^
- "case" ^ if useless > 1 then "s are" else " is" ^
- " unused")))
- else
- []
- | (Ast.Wildcard,_)::tl when not unused ->
- analyze true unrecognized useless tl
- | (Ast.Pattern (head,_,_),_)::tl when not unused ->
- analyze unused (head::unrecognized) useless tl
- | _::tl -> analyze unused unrecognized (useless + 1) tl
- in
- analyze false [] 0 branches
- | (name,ty)::cltl ->
- let rec find_and_remove =
- function
- [] ->
- raise
- (Invalid_choice
- (Some loc, lazy ("Missing case: " ^ name)))
- | ((Ast.Wildcard, _) as branch :: _) as branches ->
- branch, branches
- | (Ast.Pattern (name',_,_),_) as branch :: tl
- when name = name' ->
- branch,tl
- | branch::tl ->
- let found,rest = find_and_remove tl in
- found, branch::rest
- in
- let branch,tl = find_and_remove branches in
- match branch with
- Ast.Pattern (name,y,args),term ->
- if List.length args = count_prod ty - leftsno then
- ((name,y,args),term)::sort tl cltl
- else
- raise
- (Invalid_choice
- (Some loc,
- lazy ("Wrong number of arguments for " ^ name)))
- | Ast.Wildcard,term ->
- let rec mk_lambdas =
- function
- 0 -> term
- | n ->
- CicNotationPt.Binder
- (`Lambda, (CicNotationPt.Ident ("_", None), None),
- mk_lambdas (n - 1))
- in
- (("wildcard",None,[]),
- mk_lambdas (count_prod ty - leftsno)) :: sort tl cltl
- in
- sort branches cl
- | _ -> assert false
- in
- Cic.MutCase (indtype_uri, indtype_no, cic_outtype, cic_term,
- (List.map do_branch branches))
- | CicNotationPt.Cast (t1, t2) ->
- let cic_t1 = aux ~localize loc context t1 in
- let cic_t2 = aux ~localize loc context t2 in
- Cic.Cast (cic_t1, cic_t2)
- | CicNotationPt.LetIn ((name, typ), def, body) ->
- let cic_def = aux ~localize loc context def in
- let cic_name = CicNotationUtil.cic_name_of_name name in
- let cic_def =
- match typ with
- | None -> cic_def
- | Some t -> Cic.Cast (cic_def, aux ~localize loc context t)
- in
- let cic_body = aux ~localize loc (cic_name :: context) body in
- Cic.LetIn (cic_name, cic_def, cic_body)
- | CicNotationPt.LetRec (kind, defs, body) ->
- let context' =
- List.fold_left
- (fun acc (_, (name, _), _, _) ->
- CicNotationUtil.cic_name_of_name name :: acc)
- context defs
- in
- let cic_body =
- let unlocalized_body = aux ~localize:false loc context' body in
- match unlocalized_body with
- Cic.Rel n when n <= List.length defs -> `AvoidLetInNoAppl n
- | Cic.Appl (Cic.Rel n::l) when n <= List.length defs ->
- (try
- let l' =
- List.map
- (function t ->
- let t',subst,metasenv =
- CicMetaSubst.delift_rels [] [] (List.length defs) t
- in
- assert (subst=[]);
- assert (metasenv=[]);
- t') l
- in
- (* We can avoid the LetIn. But maybe we need to recompute l'
- so that it is localized *)
- if localize then
- match body with
- CicNotationPt.AttributedTerm (_,CicNotationPt.Appl(_::l)) ->
- let l' = List.map (aux ~localize loc context) l in
- `AvoidLetIn (n,l')
- | _ -> assert false
- else
- `AvoidLetIn (n,l')
- with
- CicMetaSubst.DeliftingARelWouldCaptureAFreeVariable ->
- if localize then
- `AddLetIn (aux ~localize loc context' body)
- else
- `AddLetIn unlocalized_body)
- | _ ->
- if localize then
- `AddLetIn (aux ~localize loc context' body)
- else
- `AddLetIn unlocalized_body
- in
- let inductiveFuns =
- List.map
- (fun (params, (name, typ), body, decr_idx) ->
- let add_binders kind t =
- List.fold_right
- (fun var t -> CicNotationPt.Binder (kind, var, t)) params t
- in
- let cic_body =
- aux ~localize loc context' (add_binders `Lambda body) in
- let cic_type =
- aux_option ~localize loc context (Some `Type)
- (HExtlib.map_option (add_binders `Pi) typ) in
- let name =
- match CicNotationUtil.cic_name_of_name name with
- | Cic.Anonymous ->
- CicNotationPt.fail loc
- "Recursive functions cannot be anonymous"
- | Cic.Name name -> name
- in
- (name, decr_idx, cic_type, cic_body))
- defs
- in
- let fix_or_cofix n =
- match kind with
- `Inductive -> Cic.Fix (n,inductiveFuns)
- | `CoInductive ->
- let coinductiveFuns =
- List.map
- (fun (name, _, typ, body) -> name, typ, body)
- inductiveFuns
- in
- Cic.CoFix (n,coinductiveFuns)
- in
- let counter = ref ~-1 in
- let build_term funs (var,_,_,_) t =
- incr counter;
- Cic.LetIn (Cic.Name var, fix_or_cofix !counter, t)
- in
- (match cic_body with
- `AvoidLetInNoAppl n ->
- let n' = List.length inductiveFuns - n in
- fix_or_cofix n'
- | `AvoidLetIn (n,l) ->
- let n' = List.length inductiveFuns - n in
- Cic.Appl (fix_or_cofix n'::l)
- | `AddLetIn cic_body ->
- List.fold_right (build_term inductiveFuns) inductiveFuns
- cic_body)
- | CicNotationPt.Ident _
- | CicNotationPt.Uri _ when is_path -> raise PathNotWellFormed
- | CicNotationPt.Ident (name, subst)
- | CicNotationPt.Uri (name, subst) as ast ->
- let is_uri = function CicNotationPt.Uri _ -> true | _ -> false in
- (try
- if is_uri ast then raise Not_found;(* don't search the env for URIs *)
- let index = find_in_context name context in
- if subst <> None then
- CicNotationPt.fail loc "Explicit substitutions not allowed here";
- Cic.Rel index
- with Not_found ->
- let cic =
- if is_uri ast then (* we have the URI, build the term out of it *)
- try
- CicUtil.term_of_uri (UriManager.uri_of_string name)
- with UriManager.IllFormedUri _ ->
- CicNotationPt.fail loc "Ill formed URI"
- else
- resolve env (Id name) ()
- in
- let mk_subst uris =
- let ids_to_uris =
- List.map (fun uri -> UriManager.name_of_uri uri, uri) uris
- in
- (match subst with
- | Some subst ->
- List.map
- (fun (s, term) ->
- (try
- List.assoc s ids_to_uris, aux ~localize loc context term
- with Not_found ->
- raise (Invalid_choice (Some loc, lazy "The provided explicit named substitution is trying to instantiate a named variable the object is not abstracted on"))))
- subst
- | None -> List.map (fun uri -> uri, Cic.Implicit None) uris)
- in
- (try
- match cic with
- | Cic.Const (uri, []) ->
- let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
- let uris = CicUtil.params_of_obj o in
- Cic.Const (uri, mk_subst uris)
- | Cic.Var (uri, []) ->
- let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
- let uris = CicUtil.params_of_obj o in
- Cic.Var (uri, mk_subst uris)
- | Cic.MutInd (uri, i, []) ->
- (try
- let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
- let uris = CicUtil.params_of_obj o in
- Cic.MutInd (uri, i, mk_subst uris)
- with
- CicEnvironment.Object_not_found _ ->
- (* if we are here it is probably the case that during the
- definition of a mutual inductive type we have met an
- occurrence of the type in one of its constructors.
- However, the inductive type is not yet in the environment
- *)
- (*here the explicit_named_substituion is assumed to be of length 0 *)
- Cic.MutInd (uri,i,[]))
- | Cic.MutConstruct (uri, i, j, []) ->
- let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
- let uris = CicUtil.params_of_obj o in
- Cic.MutConstruct (uri, i, j, mk_subst uris)
- | Cic.Meta _ | Cic.Implicit _ as t ->
-(*
- debug_print (lazy (sprintf
- "Warning: %s must be instantiated with _[%s] but we do not enforce it"
- (CicPp.ppterm t)
- (String.concat "; "
- (List.map
- (fun (s, term) -> s ^ " := " ^ CicNotationPtPp.pp_term term)
- subst))));
-*)
- t
- | _ ->
- raise (Invalid_choice (Some loc, lazy "??? Can this happen?"))
- with
- CicEnvironment.CircularDependency _ ->
- raise (Invalid_choice (None, lazy "Circular dependency in the environment"))))
- | CicNotationPt.Implicit -> Cic.Implicit None
- | CicNotationPt.UserInput -> Cic.Implicit (Some `Hole)
- | CicNotationPt.Num (num, i) -> resolve env (Num i) ~num ()
- | CicNotationPt.Meta (index, subst) ->
- let cic_subst =
- List.map
- (function
- None -> None
- | Some term -> Some (aux ~localize loc context term))
- subst
- in
- Cic.Meta (index, cic_subst)
- | CicNotationPt.Sort `Prop -> Cic.Sort Cic.Prop
- | CicNotationPt.Sort `Set -> Cic.Sort Cic.Set
- | CicNotationPt.Sort (`Type u) -> Cic.Sort (Cic.Type u)
- | CicNotationPt.Sort `CProp -> Cic.Sort Cic.CProp
- | CicNotationPt.Symbol (symbol, instance) ->
- resolve env (Symbol (symbol, instance)) ()
- | _ -> assert false (* god bless Bologna *)
- and aux_option ~localize loc (context: Cic.name list) annotation = function
- | None -> Cic.Implicit annotation
- | Some term -> aux ~localize loc context term
- in
- aux ~localize:true HExtlib.dummy_floc context ast
-
-let interpretate_path ~context path =
- let localization_tbl = Cic.CicHash.create 23 in
- (* here we are throwing away useful localization informations!!! *)
- fst (
- interpretate_term ~create_dummy_ids:true
- ~context ~env:Environment.empty ~uri:None ~is_path:true
- path ~localization_tbl, localization_tbl)
-
-let interpretate_obj ~context ~env ~uri ~is_path obj ~localization_tbl =
- assert (context = []);
- assert (is_path = false);
- let interpretate_term = interpretate_term ~localization_tbl in
- match obj with
- | CicNotationPt.Inductive (params,tyl) ->
- let uri = match uri with Some uri -> uri | None -> assert false in
- let context,params =
- let context,res =
- List.fold_left
- (fun (context,res) (name,t) ->
- let t =
- match t with
- None -> CicNotationPt.Implicit
- | Some t -> t in
- let name = CicNotationUtil.cic_name_of_name name in
- name::context,(name, interpretate_term context env None false t)::res
- ) ([],[]) params
- in
- context,List.rev res in
- let add_params =
- List.fold_right (fun (name,ty) t -> Cic.Prod (name,ty,t)) params in
- let name_to_uris =
- snd (
- List.fold_left
- (*here the explicit_named_substituion is assumed to be of length 0 *)
- (fun (i,res) (name,_,_,_) ->
- i + 1,(name,name,Cic.MutInd (uri,i,[]))::res
- ) (0,[]) tyl) in
- let con_env = DisambiguateTypes.env_of_list name_to_uris env in
- let tyl =
- List.map
- (fun (name,b,ty,cl) ->
- let ty' = add_params (interpretate_term context env None false ty) in
- let cl' =
- List.map
- (fun (name,ty) ->
- let ty' =
- add_params (interpretate_term context con_env None false ty)
- in
- name,ty'
- ) cl
- in
- name,b,ty',cl'
- ) tyl
- in
- Cic.InductiveDefinition (tyl,[],List.length params,[])
- | CicNotationPt.Record (params,name,ty,fields) ->
- let uri = match uri with Some uri -> uri | None -> assert false in
- let context,params =
- let context,res =
- List.fold_left
- (fun (context,res) (name,t) ->
- let t =
- match t with
- None -> CicNotationPt.Implicit
- | Some t -> t in
- let name = CicNotationUtil.cic_name_of_name name in
- name::context,(name, interpretate_term context env None false t)::res
- ) ([],[]) params
- in
- context,List.rev res in
- let add_params =
- List.fold_right
- (fun (name,ty) t -> Cic.Prod (name,ty,t)) params in
- let ty' = add_params (interpretate_term context env None false ty) in
- let fields' =
- snd (
- List.fold_left
- (fun (context,res) (name,ty,_coercion,arity) ->
- let context' = Cic.Name name :: context in
- context',(name,interpretate_term context env None false ty)::res
- ) (context,[]) fields) in
- let concl =
- (*here the explicit_named_substituion is assumed to be of length 0 *)
- let mutind = Cic.MutInd (uri,0,[]) in
- if params = [] then mutind
- else
- Cic.Appl
- (mutind::CicUtil.mk_rels (List.length params) (List.length fields)) in
- let con =
- List.fold_left
- (fun t (name,ty) -> Cic.Prod (Cic.Name name,ty,t))
- concl fields' in
- let con' = add_params con in
- let tyl = [name,true,ty',["mk_" ^ name,con']] in
- let field_names = List.map (fun (x,_,y,z) -> x,y,z) fields in
- Cic.InductiveDefinition
- (tyl,[],List.length params,[`Class (`Record field_names)])
- | CicNotationPt.Theorem (flavour, name, ty, bo) ->
- let attrs = [`Flavour flavour] in
- let ty' = interpretate_term [] env None false ty in
- (match bo,flavour with
- None,`Axiom ->
- Cic.Constant (name,None,ty',[],attrs)
- | Some bo,`Axiom -> assert false
- | None,_ ->
- Cic.CurrentProof (name,[],Cic.Implicit None,ty',[],attrs)
- | Some bo,_ ->
- let bo' = Some (interpretate_term [] env None false bo) in
- Cic.Constant (name,bo',ty',[],attrs))
-
-let rec domain_of_term ?(loc = HExtlib.dummy_floc) ~context = function
- | Ast.AttributedTerm (`Loc loc, term) ->
- domain_of_term ~loc ~context term
- | Ast.AttributedTerm (_, term) ->
- domain_of_term ~loc ~context term
- | Ast.Symbol (symbol, instance) ->
- [ Node ([loc], Symbol (symbol, instance), []) ]
- (* to be kept in sync with Ast.Appl (Ast.Symbol ...) *)
- | Ast.Appl (Ast.Symbol (symbol, instance) as hd :: args)
- | Ast.Appl (Ast.AttributedTerm (_,Ast.Symbol (symbol, instance)) as hd :: args)
- ->
- let args_dom =
- List.fold_right
- (fun term acc -> domain_of_term ~loc ~context term @ acc)
- args [] in
- let loc =
- match hd with
- Ast.AttributedTerm (`Loc loc,_) -> loc
- | _ -> loc
- in
- [ Node ([loc], Symbol (symbol, instance), args_dom) ]
- | Ast.Appl (Ast.Ident (name, subst) as hd :: args)
- | Ast.Appl (Ast.AttributedTerm (_,Ast.Ident (name, subst)) as hd :: args) ->
- let args_dom =
- List.fold_right
- (fun term acc -> domain_of_term ~loc ~context term @ acc)
- args [] in
- let loc =
- match hd with
- Ast.AttributedTerm (`Loc loc,_) -> loc
- | _ -> loc
- in
- (try
- (* the next line can raise Not_found *)
- ignore(find_in_context name context);
- if subst <> None then
- Ast.fail loc "Explicit substitutions not allowed here"
- else
- args_dom
- with Not_found ->
- (match subst with
- | None -> [ Node ([loc], Id name, args_dom) ]
- | Some subst ->
- let terms =
- List.fold_left
- (fun dom (_, term) ->
- let dom' = domain_of_term ~loc ~context term in
- dom @ dom')
- [] subst in
- [ Node ([loc], Id name, terms @ args_dom) ]))
- | Ast.Appl terms ->
- List.fold_right
- (fun term acc -> domain_of_term ~loc ~context term @ acc)
- terms []
- | Ast.Binder (kind, (var, typ), body) ->
- let type_dom = domain_of_term_option ~loc ~context typ in
- let body_dom =
- domain_of_term ~loc
- ~context:(CicNotationUtil.cic_name_of_name var :: context) body in
- (match kind with
- | `Exists -> [ Node ([loc], Symbol ("exists", 0), (type_dom @ body_dom)) ]
- | _ -> type_dom @ body_dom)
- | Ast.Case (term, indty_ident, outtype, branches) ->
- let term_dom = domain_of_term ~loc ~context term in
- let outtype_dom = domain_of_term_option ~loc ~context outtype in
- let rec get_first_constructor = function
- | [] -> []
- | (Ast.Pattern (head, _, _), _) :: _ -> [ Node ([loc], Id head, []) ]
- | _ :: tl -> get_first_constructor tl in
- let do_branch =
- function
- Ast.Pattern (head, _, args), term ->
- let (term_context, args_domain) =
- List.fold_left
- (fun (cont, dom) (name, typ) ->
- (CicNotationUtil.cic_name_of_name name :: cont,
- (match typ with
- | None -> dom
- | Some typ -> dom @ domain_of_term ~loc ~context:cont typ)))
- (context, []) args
- in
- domain_of_term ~loc ~context:term_context term @ args_domain
- | Ast.Wildcard, term ->
- domain_of_term ~loc ~context term
- in
- let branches_dom =
- List.fold_left (fun dom branch -> dom @ do_branch branch) [] branches in
- (match indty_ident with
- | None -> get_first_constructor branches
- | Some (ident, _) -> [ Node ([loc], Id ident, []) ])
- @ term_dom @ outtype_dom @ branches_dom
- | Ast.Cast (term, ty) ->
- let term_dom = domain_of_term ~loc ~context term in
- let ty_dom = domain_of_term ~loc ~context ty in
- term_dom @ ty_dom
- | Ast.LetIn ((var, typ), body, where) ->
- let body_dom = domain_of_term ~loc ~context body in
- let type_dom = domain_of_term_option ~loc ~context typ in
- let where_dom =
- domain_of_term ~loc
- ~context:(CicNotationUtil.cic_name_of_name var :: context) where in
- body_dom @ type_dom @ where_dom
- | Ast.LetRec (kind, defs, where) ->
- let add_defs context =
- List.fold_left
- (fun acc (_, (var, _), _, _) ->
- CicNotationUtil.cic_name_of_name var :: acc
- ) context defs in
- let where_dom = domain_of_term ~loc ~context:(add_defs context) where in
- let defs_dom =
- List.fold_left
- (fun dom (params, (_, typ), body, _) ->
- let context' =
- add_defs
- (List.fold_left
- (fun acc (var,_) -> CicNotationUtil.cic_name_of_name var :: acc)
- context params)
- in
- List.rev
- (snd
- (List.fold_left
- (fun (context,res) (var,ty) ->
- CicNotationUtil.cic_name_of_name var :: context,
- domain_of_term_option ~loc ~context ty @ res)
- (add_defs context,[]) params))
- @ domain_of_term_option ~loc ~context:context' typ
- @ domain_of_term ~loc ~context:context' body
- ) [] defs
- in
- defs_dom @ where_dom
- | Ast.Ident (name, subst) ->
- (try
- (* the next line can raise Not_found *)
- ignore(find_in_context name context);
- if subst <> None then
- Ast.fail loc "Explicit substitutions not allowed here"
- else
- []
- with Not_found ->
- (match subst with
- | None -> [ Node ([loc], Id name, []) ]
- | Some subst ->
- let terms =
- List.fold_left
- (fun dom (_, term) ->
- let dom' = domain_of_term ~loc ~context term in
- dom @ dom')
- [] subst in
- [ Node ([loc], Id name, terms) ]))
- | Ast.Uri _ -> []
- | Ast.Implicit -> []
- | Ast.Num (num, i) -> [ Node ([loc], Num i, []) ]
- | Ast.Meta (index, local_context) ->
- List.fold_left
- (fun dom term -> dom @ domain_of_term_option ~loc ~context term)
- [] local_context
- | Ast.Sort _ -> []
- | Ast.UserInput
- | Ast.Literal _
- | Ast.Layout _
- | Ast.Magic _
- | Ast.Variable _ -> assert false
-
-and domain_of_term_option ~loc ~context = function
- | None -> []
- | Some t -> domain_of_term ~loc ~context t
-
-let domain_of_term ~context term =
- uniq_domain (domain_of_term ~context term)
-
-let domain_of_obj ~context ast =
- assert (context = []);
- match ast with
- | Ast.Theorem (_,_,ty,bo) ->
- domain_of_term [] ty
- @ (match bo with
- None -> []
- | Some bo -> domain_of_term [] bo)
- | Ast.Inductive (params,tyl) ->
- let context, dom =
- List.fold_left
- (fun (context, dom) (var, ty) ->
- let context' = CicNotationUtil.cic_name_of_name var :: context in
- match ty with
- None -> context', dom
- | Some ty -> context', dom @ domain_of_term context ty
- ) ([], []) params in
- let context_w_types =
- List.rev_map
- (fun (var, _, _, _) -> Cic.Name var) tyl
- @ context in
- dom
- @ List.flatten (
- List.map
- (fun (_,_,ty,cl) ->
- domain_of_term context ty
- @ List.flatten (
- List.map
- (fun (_,ty) -> domain_of_term context_w_types ty) cl))
- tyl)
- | CicNotationPt.Record (params,var,ty,fields) ->
- let context, dom =
- List.fold_left
- (fun (context, dom) (var, ty) ->
- let context' = CicNotationUtil.cic_name_of_name var :: context in
- match ty with
- None -> context', dom
- | Some ty -> context', dom @ domain_of_term context ty
- ) ([], []) params in
- let context_w_types = Cic.Name var :: context in
- dom
- @ domain_of_term context ty
- @ snd
- (List.fold_left
- (fun (context,res) (name,ty,_,_) ->
- Cic.Name name::context, res @ domain_of_term context ty
- ) (context_w_types,[]) fields)
-
-let domain_of_obj ~context obj =
- uniq_domain (domain_of_obj ~context obj)
-
- (* dom1 \ dom2 *)
-let domain_diff dom1 dom2 =
-(* let domain_diff = Domain.diff *)
- let is_in_dom2 elt =
- List.exists
- (function
- | Symbol (symb, 0) ->
- (match elt with
- Symbol (symb',_) when symb = symb' -> true
- | _ -> false)
- | Num i ->
- (match elt with
- Num _ -> true
- | _ -> false)
- | item -> elt = item
- ) dom2
- in
- let rec aux =
- function
- [] -> []
- | Node (_,elt,l)::tl when is_in_dom2 elt -> aux (l @ tl)
- | Node (loc,elt,l)::tl -> Node (loc,elt,aux l)::(aux tl)
- in
- aux dom1
-
-module type Disambiguator =
-sig
- val disambiguate_term :
- ?fresh_instances:bool ->
- dbd:HSql.dbd ->
- context:Cic.context ->
- metasenv:Cic.metasenv ->
- ?initial_ugraph:CicUniv.universe_graph ->
- aliases:DisambiguateTypes.environment ->(* previous interpretation status *)
- universe:DisambiguateTypes.multiple_environment option ->
- CicNotationPt.term disambiguator_input ->
- ((DisambiguateTypes.domain_item * DisambiguateTypes.codomain_item) list *
- Cic.metasenv * (* new metasenv *)
- Cic.term*
- CicUniv.universe_graph) list * (* disambiguated term *)
- bool
-
- val disambiguate_obj :
- ?fresh_instances:bool ->
- dbd:HSql.dbd ->
- aliases:DisambiguateTypes.environment ->(* previous interpretation status *)
- universe:DisambiguateTypes.multiple_environment option ->
- uri:UriManager.uri option -> (* required only for inductive types *)
- CicNotationPt.term CicNotationPt.obj disambiguator_input ->
- ((DisambiguateTypes.domain_item * DisambiguateTypes.codomain_item) list *
- Cic.metasenv * (* new metasenv *)
- Cic.obj *
- CicUniv.universe_graph) list * (* disambiguated obj *)
- bool
-end
-
-module Make (C: Callbacks) =
- struct
- let choices_of_id dbd id =
- let uris = Whelp.locate ~dbd id in
- let uris =
- match uris with
- | [] ->
- (match
- (C.input_or_locate_uri
- ~title:("URI matching \"" ^ id ^ "\" unknown.") ~id ())
- with
- | None -> []
- | Some uri -> [uri])
- | [uri] -> [uri]
- | _ ->
- C.interactive_user_uri_choice ~selection_mode:`MULTIPLE
- ~ok:"Try selected." ~enable_button_for_non_vars:true
- ~title:"Ambiguous input." ~id
- ~msg: ("Ambiguous input \"" ^ id ^
- "\". Please, choose one or more interpretations:")
- uris
- in
- List.map
- (fun uri ->
- (UriManager.string_of_uri uri,
- let term =
- try
- CicUtil.term_of_uri uri
- with exn ->
- debug_print (lazy (UriManager.string_of_uri uri));
- debug_print (lazy (Printexc.to_string exn));
- assert false
- in
- fun _ _ _ -> term))
- uris
-
-let refine_profiler = HExtlib.profile "disambiguate_thing.refine_thing"
-
- let disambiguate_thing ~dbd ~context ~metasenv
- ?(initial_ugraph = CicUniv.empty_ugraph) ~aliases ~universe
- ~uri ~pp_thing ~domain_of_thing ~interpretate_thing ~refine_thing
- (thing_txt,thing_txt_prefix_len,thing)
- =
- debug_print (lazy "DISAMBIGUATE INPUT");
- let disambiguate_context = (* cic context -> disambiguate context *)
- List.map
- (function None -> Cic.Anonymous | Some (name, _) -> name)
- context
- in
- debug_print (lazy ("TERM IS: " ^ (pp_thing thing)));
- let thing_dom = domain_of_thing ~context:disambiguate_context thing in
- debug_print
- (lazy (sprintf "DISAMBIGUATION DOMAIN: %s"(string_of_domain thing_dom)));
-(*
- debug_print (lazy (sprintf "DISAMBIGUATION ENVIRONMENT: %s"
- (DisambiguatePp.pp_environment aliases)));
- debug_print (lazy (sprintf "DISAMBIGUATION UNIVERSE: %s"
- (match universe with None -> "None" | Some _ -> "Some _")));
-*)
- let current_dom =
- Environment.fold (fun item _ dom -> item :: dom) aliases [] in
- let todo_dom = domain_diff thing_dom current_dom in
- debug_print
- (lazy (sprintf "DISAMBIGUATION DOMAIN AFTER DIFF: %s"(string_of_domain todo_dom)));
- (* (2) lookup function for any item (Id/Symbol/Num) *)
- let lookup_choices =
- fun item ->
- let choices =
- let lookup_in_library () =
- match item with
- | Id id -> choices_of_id dbd id
- | Symbol (symb, _) ->
- (try
- List.map DisambiguateChoices.mk_choice
- (TermAcicContent.lookup_interpretations symb)
- with
- TermAcicContent.Interpretation_not_found -> [])
- | Num instance ->
- DisambiguateChoices.lookup_num_choices ()
- in
- match universe with
- | None -> lookup_in_library ()
- | Some e ->
- (try
- let item =
- match item with
- | Symbol (symb, _) -> Symbol (symb, 0)
- | item -> item
- in
- Environment.find item e
- with Not_found -> lookup_in_library ())
- in
- choices
- in
-(*
- (* <benchmark> *)
- let _ =
- if benchmark then begin
- let per_item_choices =
- List.map
- (fun dom_item ->
- try
- let len = List.length (lookup_choices dom_item) in
- debug_print (lazy (sprintf "BENCHMARK %s: %d"
- (string_of_domain_item dom_item) len));
- len
- with No_choices _ -> 0)
- thing_dom
- in
- max_refinements := List.fold_left ( * ) 1 per_item_choices;
- actual_refinements := 0;
- domain_size := List.length thing_dom;
- choices_avg :=
- (float_of_int !max_refinements) ** (1. /. float_of_int !domain_size)
- end
- in
- (* </benchmark> *)
-*)
-
- (* (3) test an interpretation filling with meta uninterpreted identifiers
- *)
- let test_env aliases todo_dom ugraph =
- let rec aux env = function
- | [] -> env
- | Node (_, item, l) :: tl ->
- let env =
- Environment.add item
- ("Implicit",
- (match item with
- | Id _ | Num _ ->
- (fun _ _ _ -> Cic.Implicit (Some `Closed))
- | Symbol _ -> (fun _ _ _ -> Cic.Implicit None)))
- env in
- aux (aux env l) tl in
- let filled_env = aux aliases todo_dom in
- try
- let localization_tbl = Cic.CicHash.create 503 in
- let cic_thing =
- interpretate_thing ~context:disambiguate_context ~env:filled_env
- ~uri ~is_path:false thing ~localization_tbl
- in
-let foo () =
- let k,ugraph1 =
- refine_thing metasenv context uri cic_thing ugraph ~localization_tbl
- in
- (k , ugraph1 )
-in refine_profiler.HExtlib.profile foo ()
- with
- | Try_again msg -> Uncertain (None,msg), ugraph
- | Invalid_choice (loc,msg) -> Ko (loc,msg), ugraph
- in
- (* (4) build all possible interpretations *)
- let (@@) (l1,l2,l3) (l1',l2',l3') = l1@l1', l2@l2', l3@l3' in
- (* aux returns triples Ok/Uncertain/Ko *)
- (* rem_dom is the concatenation of all the remaining domains *)
- let rec aux aliases diff lookup_in_todo_dom todo_dom rem_dom base_univ =
- (* debug_print (lazy ("ZZZ: " ^ string_of_domain todo_dom)); *)
- match todo_dom with
- | Node (locs,item,inner_dom) ->
- debug_print (lazy (sprintf "CHOOSED ITEM: %s"
- (string_of_domain_item item)));
- let choices =
- match lookup_in_todo_dom with
- None -> lookup_choices item
- | Some choices -> choices in
- match choices with
- [] ->
- [], [],
- [aliases, diff, Some (List.hd locs),
- lazy ("No choices for " ^ string_of_domain_item item),
- true]
-(*
- | [codomain_item] ->
- (* just one choice. We perform a one-step look-up and
- if the next set of choices is also a singleton we
- skip this refinement step *)
- debug_print(lazy (sprintf "%s CHOSEN" (fst codomain_item)));
- let new_env = Environment.add item codomain_item aliases in
- let new_diff = (item,codomain_item)::diff in
- let lookup_in_todo_dom,next_choice_is_single =
- match remaining_dom with
- [] -> None,false
- | (_,he)::_ ->
- let choices = lookup_choices he in
- Some choices,List.length choices = 1
- in
- if next_choice_is_single then
- aux new_env new_diff lookup_in_todo_dom remaining_dom
- base_univ
- else
- (match test_env new_env remaining_dom base_univ with
- | Ok (thing, metasenv),new_univ ->
- (match remaining_dom with
- | [] ->
- [ new_env, new_diff, metasenv, thing, new_univ ], []
- | _ ->
- aux new_env new_diff lookup_in_todo_dom
- remaining_dom new_univ)
- | Uncertain (loc,msg),new_univ ->
- (match remaining_dom with
- | [] -> [], [new_env,new_diff,loc,msg,true]
- | _ ->
- aux new_env new_diff lookup_in_todo_dom
- remaining_dom new_univ)
- | Ko (loc,msg),_ -> [], [new_env,new_diff,loc,msg,true])
-*)
- | _::_ ->
- let outcomes =
- List.map
- (function codomain_item ->
- debug_print(lazy (sprintf "%s CHOSEN" (fst codomain_item)));
- let new_env = Environment.add item codomain_item aliases in
- let new_diff = (item,codomain_item)::diff in
- test_env new_env (inner_dom@rem_dom) base_univ,
- new_env,new_diff
- ) choices in
- let some_outcome_ok =
- List.exists
- (function
- (Ok (_,_),_),_,_
- | (Uncertain (_,_),_),_,_ -> true
- | _ -> false)
- outcomes in
- let rec filter univ = function
- | [] -> [],[],[]
- | (outcome,new_env,new_diff) :: tl ->
- match outcome with
- | Ok (thing, metasenv),new_univ ->
- let res =
- (match inner_dom with
- | [] ->
- [new_env,new_diff,metasenv,thing,new_univ], [], []
- | _ ->
- visit_children new_env new_diff new_univ rem_dom inner_dom)
- in
- res @@ filter univ tl
- | Uncertain (loc,msg),new_univ ->
- let res =
- (match inner_dom with
- | [] -> [],[new_env,new_diff,loc,msg,new_univ],[]
- | _ ->
- visit_children new_env new_diff new_univ rem_dom inner_dom)
- in
- res @@ filter univ tl
- | Ko (loc,msg),_ ->
- let res =
- [],[],[new_env,new_diff,loc,msg,not some_outcome_ok]
- in
- res @@ filter univ tl
- in
- filter base_univ outcomes
- and visit_children env diff univ rem_dom =
- function
- [] -> assert false
- | [dom] -> aux env diff None dom rem_dom univ
- | dom::remaining_dom ->
- let ok_l,uncertain_l,error_l =
- aux env diff None dom (remaining_dom@rem_dom) univ
- in
- let res_after_ok_l =
- List.fold_right
- (fun (env,diff,_,_,univ) res ->
- visit_children env diff univ rem_dom remaining_dom
- @@ res
- ) ok_l ([],[],error_l)
- in
- List.fold_right
- (fun (env,diff,_,_,univ) res ->
- visit_children env diff univ rem_dom remaining_dom
- @@ res
- ) uncertain_l res_after_ok_l
- in
- let aux' aliases diff lookup_in_todo_dom todo_dom base_univ =
- match test_env aliases todo_dom base_univ with
- | Ok (thing, metasenv),new_univ ->
- if todo_dom = [] then
- [ aliases, diff, metasenv, thing, new_univ ], [], []
- else
- visit_children aliases diff base_univ [] todo_dom
-(*
- _lookup_in_todo_dom_
-*)
- | Uncertain (loc,msg),new_univ ->
- if todo_dom = [] then
- [],[aliases,diff,loc,msg,new_univ],[]
- else
- visit_children aliases diff base_univ [] todo_dom
-(*
- _lookup_in_todo_dom_
-*)
- | Ko (loc,msg),_ -> [],[],[aliases,diff,loc,msg,true] in
- let base_univ = initial_ugraph in
- try
- let res =
- match aux' aliases [] None todo_dom base_univ with
- | [],uncertain,errors ->
- debug_print (lazy "NO INTERPRETATIONS");
- let errors =
- List.map
- (fun (env,diff,loc,msg,_) -> (env,diff,loc,msg,true)
- ) uncertain @ errors
- in
- let errors =
- List.map
- (fun (env,diff,loc,msg,significant) ->
- let env' =
- filter_map_domain
- (fun locs domain_item ->
- try
- let description =
- fst (Environment.find domain_item env)
- in
- Some (locs,descr_of_domain_item domain_item,description)
- with
- Not_found -> None)
- thing_dom
- in
- env',diff,loc,msg,significant
- ) errors
- in
- raise (NoWellTypedInterpretation (0,errors))
- | [_,diff,metasenv,t,ugraph],_,_ ->
- debug_print (lazy "SINGLE INTERPRETATION");
- [diff,metasenv,t,ugraph], false
- | l,_,_ ->
- debug_print
- (lazy (sprintf "MANY INTERPRETATIONS (%d)" (List.length l)));
- let choices =
- List.map
- (fun (env, _, _, _, _) ->
- map_domain
- (fun locs domain_item ->
- let description =
- fst (Environment.find domain_item env)
- in
- locs,descr_of_domain_item domain_item, description)
- thing_dom)
- l
- in
- let choosed =
- C.interactive_interpretation_choice
- thing_txt thing_txt_prefix_len choices
- in
- (List.map (fun n->let _,d,m,t,u= List.nth l n in d,m,t,u) choosed),
- true
- in
- res
- with
- CicEnvironment.CircularDependency s ->
- failwith "Disambiguate: circular dependency"
-
- let disambiguate_term ?(fresh_instances=false) ~dbd ~context ~metasenv
- ?(initial_ugraph = CicUniv.empty_ugraph) ~aliases ~universe
- (text,prefix_len,term)
- =
- let term =
- if fresh_instances then CicNotationUtil.freshen_term term else term
- in
- disambiguate_thing ~dbd ~context ~metasenv ~initial_ugraph ~aliases
- ~universe ~uri:None ~pp_thing:CicNotationPp.pp_term
- ~domain_of_thing:domain_of_term
- ~interpretate_thing:(interpretate_term (?create_dummy_ids:None))
- ~refine_thing:refine_term (text,prefix_len,term)
-
- let disambiguate_obj ?(fresh_instances=false) ~dbd ~aliases ~universe ~uri
- (text,prefix_len,obj)
- =
- let obj =
- if fresh_instances then CicNotationUtil.freshen_obj obj else obj
- in
- disambiguate_thing ~dbd ~context:[] ~metasenv:[] ~aliases ~universe ~uri
- ~pp_thing:(CicNotationPp.pp_obj CicNotationPp.pp_term) ~domain_of_thing:domain_of_obj
- ~interpretate_thing:interpretate_obj ~refine_thing:refine_obj
- (text,prefix_len,obj)
- end
-
projects / helm.git / blobdiff