diff options
Diffstat (limited to 'pretyping/classops.ml')
| -rw-r--r-- | pretyping/classops.ml | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/pretyping/classops.ml b/pretyping/classops.ml index 504d01af..62d774bd 100644 --- a/pretyping/classops.ml +++ b/pretyping/classops.ml @@ -1,13 +1,11 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2011 *) +(* <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: classops.ml 14776 2011-12-07 17:54:28Z herbelin $ *) - open Util open Pp open Flags @@ -19,7 +17,7 @@ open Libobject open Library open Term open Termops -open Rawterm +open Glob_term open Decl_kinds open Mod_subst @@ -48,6 +46,13 @@ type coe_info_typ = { coe_is_identity : bool; coe_param : int } +let coe_info_typ_equal c1 c2 = + eq_constr c1.coe_value c2.coe_value && + eq_constr c1.coe_type c2.coe_type && + c1.coe_strength = c2.coe_strength && + c1.coe_is_identity = c2.coe_is_identity && + c1.coe_param = c2.coe_param + type cl_index = int type coe_index = coe_info_typ @@ -134,9 +139,9 @@ let coercion_info coe = Gmap.find coe !coercion_tab let coercion_exists coe = Gmap.mem coe !coercion_tab -(* find_class_type : env -> evar_map -> constr -> cl_typ * int *) +(* find_class_type : evar_map -> constr -> cl_typ * constr list *) -let find_class_type env sigma t = +let find_class_type sigma t = let t', args = Reductionops.whd_betaiotazeta_stack sigma t in match kind_of_term t' with | Var id -> CL_SECVAR id, args @@ -154,7 +159,7 @@ let subst_cl_typ subst ct = match ct with | CL_CONST kn -> let kn',t = subst_con subst kn in if kn' == kn then ct else - fst (find_class_type (Global.env()) Evd.empty t) + fst (find_class_type Evd.empty t) | CL_IND (kn,i) -> let kn' = subst_ind subst kn in if kn' == kn then ct else @@ -169,12 +174,12 @@ let subst_coe_typ subst t = fst (subst_global subst t) let class_of env sigma t = let (t, n1, i, args) = try - let (cl,args) = find_class_type env sigma t in + let (cl,args) = find_class_type sigma t in let (i, { cl_param = n1 } ) = class_info cl in (t, n1, i, args) with Not_found -> let t = Tacred.hnf_constr env sigma t in - let (cl, args) = find_class_type env sigma t in + let (cl, args) = find_class_type sigma t in let (i, { cl_param = n1 } ) = class_info cl in (t, n1, i, args) in @@ -182,7 +187,7 @@ let class_of env sigma t = let inductive_class_of ind = fst (class_info (CL_IND ind)) -let class_args_of env sigma c = snd (find_class_type env sigma c) +let class_args_of env sigma c = snd (find_class_type sigma c) let string_of_class = function | CL_FUN -> "Funclass" @@ -211,14 +216,14 @@ let lookup_path_to_sort_from_class s = let apply_on_class_of env sigma t cont = try - let (cl,args) = find_class_type env sigma t in + let (cl,args) = find_class_type sigma t in let (i, { cl_param = n1 } ) = class_info cl in if List.length args <> n1 then raise Not_found; t, cont i with Not_found -> (* Is it worth to be more incremental on the delta steps? *) let t = Tacred.hnf_constr env sigma t in - let (cl, args) = find_class_type env sigma t in + let (cl, args) = find_class_type sigma t in let (i, { cl_param = n1 } ) = class_info cl in if List.length args <> n1 then raise Not_found; t, cont i @@ -308,7 +313,7 @@ let add_coercion_in_graph (ic,source,target) = try_add_new_path1 (s,target) (p@[ic]); Gmap.iter (fun (u,v) q -> - if u<>v & (u = target) & (p <> q) then + if u<>v & u = target && not (list_equal coe_info_typ_equal p q) then try_add_new_path1 (s,v) (p@[ic]@q)) old_inheritance_graph end; @@ -344,6 +349,7 @@ open Goptions let _ = declare_bool_option { optsync = true; + optdepr = false; optname = "automatic import of coercions"; optkey = ["Automatic";"Coercions";"Import"]; optread = (fun () -> !automatically_import_coercions); @@ -400,7 +406,10 @@ let discharge_coercion (_,(coe,stre,isid,cls,clt,ps)) = let classify_coercion (coe,stre,isid,cls,clt,ps as obj) = if stre = Local then Dispose else Substitute obj -let (inCoercion,_) = +type coercion_obj = + coe_typ * Decl_kinds.locality * bool * cl_typ * cl_typ * int + +let inCoercion : coercion_obj -> obj = declare_object {(default_object "COERCION") with open_function = open_coercion; load_function = load_coercion; |