diff options
Diffstat (limited to 'interp/constrextern.ml')
| -rw-r--r-- | interp/constrextern.ml | 70 |
1 files changed, 52 insertions, 18 deletions
diff --git a/interp/constrextern.ml b/interp/constrextern.ml index 19444988b9..c613effcd3 100644 --- a/interp/constrextern.ml +++ b/interp/constrextern.ml @@ -14,10 +14,10 @@ open CErrors open Util open Names open Nameops -open Constr open Termops open Libnames open Globnames +open Namegen open Impargs open CAst open Constrexpr @@ -29,7 +29,6 @@ open Pattern open Nametab open Notation open Detyping -open Misctypes open Decl_kinds module NamedDecl = Context.Named.Declaration @@ -479,7 +478,8 @@ and extern_notation_pattern (tmp_scope,scopes as allscopes) vars t = function if is_inactive_rule keyrule then raise No_match; let loc = t.loc in match DAst.get t with - | PatCstr (cstr,_,na) -> + | PatCstr (cstr,args,na) -> + let t = if na = Anonymous then t else DAst.make ?loc (PatCstr (cstr,args,Anonymous)) in let p = apply_notation_to_pattern ?loc (ConstructRef cstr) (match_notation_constr_cases_pattern t pat) allscopes vars keyrule in insert_pat_alias ?loc p na @@ -590,11 +590,17 @@ let explicitize inctx impl (cf,f) args = let expl () = match ip with | Some i -> - if not (List.is_empty impl) && is_status_implicit (List.nth impl (i-1)) then - raise Expl + (* Careful: It is possible to have declared implicits ending + before the principal argument *) + let is_impl = + try is_status_implicit (List.nth impl (i-1)) + with Failure _ -> false + in + if is_impl + then raise Expl else let (args1,args2) = List.chop i args in - let (impl1,impl2) = if List.is_empty impl then [],[] else List.chop i impl in + let (impl1,impl2) = try List.chop i impl with Failure _ -> impl, [] in let args1 = exprec 1 (args1,impl1) in let args2 = exprec (i+1) (args2,impl2) in let ip = Some (List.length args1) in @@ -714,7 +720,7 @@ let extended_glob_local_binder_of_decl loc = function | (p,bk,None,t) -> GLocalAssum (p,bk,t) | (p,bk,Some x, t) -> match DAst.get t with - | GHole (_, Misctypes.IntroAnonymous, None) -> GLocalDef (p,bk,x,None) + | GHole (_, IntroAnonymous, None) -> GLocalDef (p,bk,x,None) | _ -> GLocalDef (p,bk,x,Some t) let extended_glob_local_binder_of_decl ?loc u = DAst.make ?loc (extended_glob_local_binder_of_decl loc u) @@ -749,13 +755,13 @@ let rec extern inctx scopes vars r = | GVar id -> CRef (make ?loc @@ Ident id,None) - | GEvar (n,[]) when !print_meta_as_hole -> CHole (None, Misctypes.IntroAnonymous, None) + | GEvar (n,[]) when !print_meta_as_hole -> CHole (None, IntroAnonymous, None) | GEvar (n,l) -> extern_evar n (List.map (on_snd (extern false scopes vars)) l) | GPatVar kind -> - if !print_meta_as_hole then CHole (None, Misctypes.IntroAnonymous, None) else + if !print_meta_as_hole then CHole (None, IntroAnonymous, None) else (match kind with | Evar_kinds.SecondOrderPatVar n -> CPatVar n | Evar_kinds.FirstOrderPatVar n -> CEvar (n,[])) @@ -911,7 +917,7 @@ let rec extern inctx scopes vars r = | GCast (c, c') -> CCast (sub_extern true scopes vars c, - Miscops.map_cast_type (extern_typ scopes vars) c') + map_cast_type (extern_typ scopes vars) c') | GProj (p, c) -> let pr = extern_reference ?loc Id.Set.empty (ConstRef (Projection.constant p)) in CProj (pr, sub_extern inctx scopes vars c) @@ -925,7 +931,7 @@ and sub_extern inctx (_,scopes) = extern inctx (None,scopes) and factorize_prod scopes vars na bk aty c = let store, get = set_temporary_memory () in match na, DAst.get c with - | Name id, GCases (LetPatternStyle, None, [(e,(Anonymous,None))],(_::_ as eqns)) + | Name id, GCases (Constr.LetPatternStyle, None, [(e,(Anonymous,None))],(_::_ as eqns)) when is_gvar id e && List.length (store (factorize_eqns eqns)) = 1 -> (match get () with | [{CAst.v=(ids,disj_of_patl,b)}] -> @@ -953,7 +959,7 @@ and factorize_prod scopes vars na bk aty c = and factorize_lambda inctx scopes vars na bk aty c = let store, get = set_temporary_memory () in match na, DAst.get c with - | Name id, GCases (LetPatternStyle, None, [(e,(Anonymous,None))],(_::_ as eqns)) + | Name id, GCases (Constr.LetPatternStyle, None, [(e,(Anonymous,None))],(_::_ as eqns)) when is_gvar id e && List.length (store (factorize_eqns eqns)) = 1 -> (match get () with | [{CAst.v=(ids,disj_of_patl,b)}] -> @@ -1154,7 +1160,7 @@ let extern_closed_glob ?lax goal_concl_style env sigma t = let any_any_branch = (* | _ => _ *) - CAst.make ([],[DAst.make @@ PatVar Anonymous], DAst.make @@ GHole (Evar_kinds.InternalHole,Misctypes.IntroAnonymous,None)) + CAst.make ([],[DAst.make @@ PatVar Anonymous], DAst.make @@ GHole (Evar_kinds.InternalHole,IntroAnonymous,None)) let compute_displayed_name_in_pattern sigma avoid na c = let open Namegen in @@ -1178,7 +1184,7 @@ let rec glob_of_pat avoid env sigma pat = DAst.make @@ match pat with anomaly ~label:"glob_constr_of_pattern" (Pp.str "index to an anonymous variable.") with Not_found -> Id.of_string ("_UNBOUND_REL_"^(string_of_int n)) in GVar id - | PMeta None -> GHole (Evar_kinds.InternalHole, Misctypes.IntroAnonymous,None) + | PMeta None -> GHole (Evar_kinds.InternalHole, IntroAnonymous,None) | PMeta (Some n) -> GPatVar (Evar_kinds.FirstOrderPatVar n) | PProj (p,c) -> GApp (DAst.make @@ GRef (ConstRef (Projection.constant p),None), [glob_of_pat avoid env sigma c]) @@ -1203,7 +1209,7 @@ let rec glob_of_pat avoid env sigma pat = DAst.make @@ match pat with | PIf (c,b1,b2) -> GIf (glob_of_pat avoid env sigma c, (Anonymous,None), glob_of_pat avoid env sigma b1, glob_of_pat avoid env sigma b2) - | PCase ({cip_style=LetStyle; cip_ind_tags=None},PMeta None,tm,[(0,n,b)]) -> + | PCase ({cip_style=Constr.LetStyle; cip_ind_tags=None},PMeta None,tm,[(0,n,b)]) -> let nal,b = it_destRLambda_or_LetIn_names n (glob_of_pat avoid env sigma b) in GLetTuple (nal,(Anonymous,None),glob_of_pat avoid env sigma tm,b) | PCase (info,p,tm,bl) -> @@ -1222,9 +1228,37 @@ let rec glob_of_pat avoid env sigma pat = DAst.make @@ match pat with return_type_of_predicate ind nargs (glob_of_pat avoid env sigma p) | _ -> anomaly (Pp.str "PCase with non-trivial predicate but unknown inductive.") in - GCases (RegularStyle,rtn,[glob_of_pat avoid env sigma tm,indnames],mat) - | PFix f -> DAst.get (Detyping.detype_names false avoid env (Global.env()) sigma (EConstr.of_constr (mkFix f))) (** FIXME bad env *) - | PCoFix c -> DAst.get (Detyping.detype_names false avoid env (Global.env()) sigma (EConstr.of_constr (mkCoFix c))) + GCases (Constr.RegularStyle,rtn,[glob_of_pat avoid env sigma tm,indnames],mat) + | PFix ((ln,i),(lna,tl,bl)) -> + let def_avoid, def_env, lfi = + Array.fold_left + (fun (avoid, env, l) na -> + let id = Namegen.next_name_away na avoid in + (Id.Set.add id avoid, Name id :: env, id::l)) + (avoid, env, []) lna in + let n = Array.length tl in + let v = Array.map3 + (fun c t i -> Detyping.share_pattern_names glob_of_pat (i+1) [] def_avoid def_env sigma c (Patternops.lift_pattern n t)) + bl tl ln in + GRec(GFix (Array.map (fun i -> Some i, GStructRec) ln,i),Array.of_list (List.rev lfi), + Array.map (fun (bl,_,_) -> bl) v, + Array.map (fun (_,_,ty) -> ty) v, + Array.map (fun (_,bd,_) -> bd) v) + | PCoFix (ln,(lna,tl,bl)) -> + let def_avoid, def_env, lfi = + Array.fold_left + (fun (avoid, env, l) na -> + let id = Namegen.next_name_away na avoid in + (Id.Set.add id avoid, Name id :: env, id::l)) + (avoid, env, []) lna in + let ntys = Array.length tl in + let v = Array.map2 + (fun c t -> share_pattern_names glob_of_pat 0 [] def_avoid def_env sigma c (Patternops.lift_pattern ntys t)) + bl tl in + GRec(GCoFix ln,Array.of_list (List.rev lfi), + Array.map (fun (bl,_,_) -> bl) v, + Array.map (fun (_,_,ty) -> ty) v, + Array.map (fun (_,bd,_) -> bd) v) | PSort s -> GSort s let extern_constr_pattern env sigma pat = |
