X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fcic_unification%2FcicRefine.ml;h=b450d25021d35ab496f4bc87a7831c343d833411;hb=cb27dc85331027e290e3c4afc7ddef2e869cdfac;hp=f30e3c53c0314819a825f62310b3fd28cbc0ae2c;hpb=75a7e852a03cdaa788e7005dfce222c5d6359915;p=helm.git diff --git a/helm/ocaml/cic_unification/cicRefine.ml b/helm/ocaml/cic_unification/cicRefine.ml index f30e3c53c..b450d2502 100644 --- a/helm/ocaml/cic_unification/cicRefine.ml +++ b/helm/ocaml/cic_unification/cicRefine.ml @@ -25,17 +25,30 @@ open Printf -exception RefineFailure of string;; +type failure_msg = + Reason of string + | UnificationFailure of CicUnification.failure_msg + +let explain_error = + function + Reason msg -> msg + | UnificationFailure msg -> CicUnification.explain_error msg + +exception RefineFailure of failure_msg;; exception Uncertain of string;; exception AssertFailure of string;; let debug_print = fun _ -> () +let profiler = HExtlib.profile "CicRefine.fo_unif" + let fo_unif_subst subst context metasenv t1 t2 ugraph = try +let foo () = CicUnification.fo_unif_subst subst context metasenv t1 t2 ugraph +in profiler.HExtlib.profile foo () with - (CicUnification.UnificationFailure msg) -> raise (RefineFailure msg) + (CicUnification.UnificationFailure msg) -> raise (RefineFailure (UnificationFailure msg)) | (CicUnification.Uncertain msg) -> raise (Uncertain msg) ;; @@ -47,76 +60,68 @@ let rec split l n = ;; let rec type_of_constant uri ugraph = - let module C = Cic in - let module R = CicReduction in - let module U = UriManager in - (* - let obj = - try - CicEnvironment.get_cooked_obj uri - with Not_found -> assert false - in - *) - let obj,u= CicEnvironment.get_obj ugraph uri in - match obj with - C.Constant (_,_,ty,_,_) -> ty,u - | C.CurrentProof (_,_,_,ty,_,_) -> ty,u - | _ -> - raise - (RefineFailure ("Unknown constant definition " ^ U.string_of_uri uri)) + let module C = Cic in + let module R = CicReduction in + let module U = UriManager in + let _ = CicTypeChecker.typecheck uri in + let obj,u = + try + CicEnvironment.get_cooked_obj ugraph uri + with Not_found -> assert false + in + match obj with + C.Constant (_,_,ty,_,_) -> ty,u + | C.CurrentProof (_,_,_,ty,_,_) -> ty,u + | _ -> + raise + (RefineFailure (Reason ("Unknown constant definition " ^ U.string_of_uri uri))) and type_of_variable uri ugraph = let module C = Cic in let module R = CicReduction in let module U = UriManager in - (* - let obj = - try - CicEnvironment.get_cooked_obj uri - with Not_found -> assert false - in - *) - let obj,u = CicEnvironment.get_obj ugraph uri in - match obj with - C.Variable (_,_,ty,_,_) -> ty,u - | _ -> - raise - (RefineFailure - ("Unknown variable definition " ^ UriManager.string_of_uri uri)) + let _ = CicTypeChecker.typecheck uri in + let obj,u = + try + CicEnvironment.get_cooked_obj ugraph uri + with Not_found -> assert false + in + match obj with + C.Variable (_,_,ty,_,_) -> ty,u + | _ -> + raise + (RefineFailure + (Reason ("Unknown variable definition " ^ UriManager.string_of_uri uri))) and type_of_mutual_inductive_defs uri i ugraph = let module C = Cic in let module R = CicReduction in let module U = UriManager in - (* - let obj = - try - CicEnvironment.get_cooked_obj uri - with Not_found -> assert false - in - *) - let obj,u = CicEnvironment.get_obj ugraph uri in - match obj with - C.InductiveDefinition (dl,_,_,_) -> - let (_,_,arity,_) = List.nth dl i in - arity,u - | _ -> - raise - (RefineFailure - ("Unknown mutual inductive definition " ^ U.string_of_uri uri)) + let _ = CicTypeChecker.typecheck uri in + let obj,u = + try + CicEnvironment.get_cooked_obj ugraph uri + with Not_found -> assert false + in + match obj with + C.InductiveDefinition (dl,_,_,_) -> + let (_,_,arity,_) = List.nth dl i in + arity,u + | _ -> + raise + (RefineFailure + (Reason ("Unknown mutual inductive definition " ^ U.string_of_uri uri))) and type_of_mutual_inductive_constr uri i j ugraph = let module C = Cic in let module R = CicReduction in let module U = UriManager in - (* - let obj = - try - CicEnvironment.get_cooked_obj uri - with Not_found -> assert false - in - *) - let obj,u = CicEnvironment.get_obj ugraph uri in + let _ = CicTypeChecker.typecheck uri in + let obj,u = + try + CicEnvironment.get_cooked_obj ugraph uri + with Not_found -> assert false + in match obj with C.InductiveDefinition (dl,_,_,_) -> let (_,_,_,cl) = List.nth dl i in @@ -125,7 +130,7 @@ and type_of_mutual_inductive_constr uri i j ugraph = | _ -> raise (RefineFailure - ("Unkown mutual inductive definition " ^ U.string_of_uri uri)) + (Reason ("Unkown mutual inductive definition " ^ U.string_of_uri uri))) (* type_of_aux' is just another name (with a different scope) for type_of_aux *) @@ -182,10 +187,15 @@ and type_of_aux' metasenv context t ugraph = | Some (_,C.Def (_,Some ty)) -> t,S.lift n ty,subst,metasenv, ugraph | Some (_,C.Def (bo,None)) -> - type_of_aux subst metasenv context (S.lift n bo) ugraph - | None -> raise (RefineFailure "Rel to hidden hypothesis") + let ty,ugraph = + (* if it is in the context it must be already well-typed*) + CicTypeChecker.type_of_aux' ~subst metasenv context + (S.lift n bo) ugraph + in + t,ty,subst,metasenv,ugraph + | None -> raise (RefineFailure (Reason "Rel to hidden hypothesis")) with - _ -> raise (RefineFailure "Not a close term") + _ -> raise (RefineFailure (Reason "Not a close term")) ) | C.Var (uri,exp_named_subst) -> let exp_named_subst',subst',metasenv',ugraph1 = @@ -240,7 +250,7 @@ and type_of_aux' metasenv context t ugraph = in C.Cast (te',ty'),ty',subst''',metasenv''',ugraph3 with - _ -> raise (RefineFailure "Cast")) + _ -> raise (RefineFailure (Reason "Cast"))) | C.Prod (name,s,t) -> let s',sort1,subst',metasenv',ugraph1 = type_of_aux subst metasenv context s ugraph @@ -262,10 +272,10 @@ and type_of_aux' metasenv context t ugraph = C.Meta _ | C.Sort _ -> () | _ -> - raise (RefineFailure (sprintf + raise (RefineFailure (Reason (sprintf "Not well-typed lambda-abstraction: the source %s should be a type; instead it is a term of type %s" (CicPp.ppterm s) - (CicPp.ppterm sort1))) + (CicPp.ppterm sort1)))) ) ; let t',type2,subst'',metasenv'',ugraph2 = type_of_aux subst' metasenv' @@ -287,7 +297,7 @@ and type_of_aux' metasenv context t ugraph = * Moreover the inferred type is closer to the expected one. *) C.LetIn (n,s',t'),CicSubstitution.subst s' inferredty, - subst',metasenv',ugraph2 + subst'',metasenv'',ugraph2 | C.Appl (he::((_::_) as tl)) -> let he',hetype,subst',metasenv',ugraph1 = type_of_aux subst metasenv context he ugraph @@ -306,7 +316,7 @@ and type_of_aux' metasenv context t ugraph = hetype tlbody_and_type ugraph2 in C.Appl (he'::tl'), applty,subst''',metasenv''',ugraph3 - | C.Appl _ -> raise (RefineFailure "Appl: no arguments") + | C.Appl _ -> raise (RefineFailure (Reason "Appl: no arguments")) | C.Const (uri,exp_named_subst) -> let exp_named_subst',subst',metasenv',ugraph1 = check_exp_named_subst subst metasenv context @@ -342,15 +352,16 @@ and type_of_aux' metasenv context t ugraph = (* first, get the inductive type (and noparams) * in the environment *) let (_,b,arity,constructors), expl_params, no_left_params,ugraph = - let obj,u = CicEnvironment.get_obj ugraph uri in + let _ = CicTypeChecker.typecheck uri in + let obj,u = CicEnvironment.get_cooked_obj ugraph uri in match obj with C.InductiveDefinition (l,expl_params,parsno,_) -> List.nth l i , expl_params, parsno, u | _ -> raise (RefineFailure - ("Unkown mutual inductive definition " ^ - U.string_of_uri uri)) + (Reason ("Unkown mutual inductive definition " ^ + U.string_of_uri uri))) in let rec count_prod t = match CicReduction.whd ~subst context t with @@ -437,7 +448,7 @@ and type_of_aux' metasenv context t ugraph = (let candidate,ugraph5,metasenv,subst = let exp_name_subst, metasenv = let o,_ = - CicEnvironment.get_obj CicUniv.empty_ugraph uri + CicEnvironment.get_cooked_obj CicUniv.empty_ugraph uri in let uris = CicUtil.params_of_obj o in List.fold_right ( @@ -708,7 +719,7 @@ and type_of_aux' metasenv context t ugraph = let subst',metasenv',ugraph' = (try fo_unif_subst subst context metasenv t ct ugraph - with e -> raise (RefineFailure (sprintf "The local context is not consistent with the canonical context, since %s cannot be unified with %s. Reason: %s" (CicMetaSubst.ppterm subst t) (CicMetaSubst.ppterm subst ct) (match e with AssertFailure msg -> msg | _ -> (Printexc.to_string e))))) + with e -> raise (RefineFailure (Reason (sprintf "The local context is not consistent with the canonical context, since %s cannot be unified with %s. Reason: %s" (CicMetaSubst.ppterm subst t) (CicMetaSubst.ppterm subst ct) (match e with AssertFailure msg -> msg | _ -> (Printexc.to_string e)))))) in l @ [Some t],subst',metasenv',ugraph' | Some t,Some (_,C.Decl ct) -> @@ -719,23 +730,23 @@ and type_of_aux' metasenv context t ugraph = (try fo_unif_subst subst' context metasenv' inferredty ct ugraph1 - with e -> raise (RefineFailure (sprintf "The local context is not consistent with the canonical context, since the type %s of %s cannot be unified with the expected type %s. Reason: %s" (CicMetaSubst.ppterm subst' inferredty) (CicMetaSubst.ppterm subst' t) (CicMetaSubst.ppterm subst' ct) (match e with AssertFailure msg -> msg | _ -> (Printexc.to_string e))))) + with e -> raise (RefineFailure (Reason (sprintf "The local context is not consistent with the canonical context, since the type %s of %s cannot be unified with the expected type %s. Reason: %s" (CicMetaSubst.ppterm subst' inferredty) (CicMetaSubst.ppterm subst' t) (CicMetaSubst.ppterm subst' ct) (match e with AssertFailure msg -> msg | _ -> (Printexc.to_string e)))))) in l @ [Some t'], subst'',metasenv'',ugraph2 | None, Some _ -> - raise (RefineFailure (sprintf + raise (RefineFailure (Reason (sprintf "Not well typed metavariable instance %s: the local context does not instantiate an hypothesis even if the hypothesis is not restricted in the canonical context %s" (CicMetaSubst.ppterm subst (Cic.Meta (metano, l))) - (CicMetaSubst.ppcontext subst canonical_context))) + (CicMetaSubst.ppcontext subst canonical_context)))) ) ([],subst,metasenv,ugraph) l lifted_canonical_context with Invalid_argument _ -> raise (RefineFailure - (sprintf + (Reason (sprintf "Not well typed metavariable instance %s: the length of the local context does not match the length of the canonical context %s" (CicMetaSubst.ppterm subst (Cic.Meta (metano, l))) - (CicMetaSubst.ppcontext subst canonical_context))) + (CicMetaSubst.ppcontext subst canonical_context)))) and check_exp_named_subst metasubst metasenv context tl ugraph = let rec check_exp_named_subst_aux metasubst metasenv substs tl ugraph = @@ -749,13 +760,13 @@ and type_of_aux' metasenv context t ugraph = (match CicEnvironment.get_cooked_obj ~trust:false uri with Cic.Variable (_,Some bo,_,_) -> raise - (RefineFailure - "A variable with a body can not be explicit substituted") + (RefineFailure (Reason + "A variable with a body can not be explicit substituted")) | Cic.Variable (_,None,_,_) -> () | _ -> raise - (RefineFailure - ("Unkown variable definition " ^ UriManager.string_of_uri uri)) + (RefineFailure (Reason + ("Unkown variable definition " ^ UriManager.string_of_uri uri))) ) ; *) let t',typeoft,metasubst',metasenv',ugraph2 = @@ -766,11 +777,11 @@ and type_of_aux' metasenv context t ugraph = fo_unif_subst metasubst' context metasenv' typeoft typeofvar ugraph2 with _ -> - raise (RefineFailure + raise (RefineFailure (Reason ("Wrong Explicit Named Substitution: " ^ CicMetaSubst.ppterm metasubst' typeoft ^ " not unifiable with " ^ - CicMetaSubst.ppterm metasubst' typeofvar)) + CicMetaSubst.ppterm metasubst' typeofvar))) in (* FIXME: no mere tail recursive! *) let exp_name_subst, metasubst''', metasenv''', ugraph4 = @@ -814,10 +825,10 @@ and type_of_aux' metasenv context t ugraph = in t2'',subst,metasenv,ugraph1 | (_,_) -> - raise (RefineFailure (sprintf + raise (RefineFailure (Reason (sprintf "Two sorts were expected, found %s (that reduces to %s) and %s (that reduces to %s)" (CicPp.ppterm t1) (CicPp.ppterm t1'') (CicPp.ppterm t2) - (CicPp.ppterm t2''))) + (CicPp.ppterm t2'')))) and eat_prods subst metasenv context hetype tlbody_and_type ugraph = let rec mk_prod metasenv context = @@ -866,11 +877,11 @@ and type_of_aux' metasenv context t ugraph = try fo_unif_subst subst context metasenv hetype hetype' ugraph with exn -> - debug_print (Printf.sprintf "hetype=%s\nhetype'=%s\nmetasenv=%s\nsubst=%s" + debug_print (lazy (Printf.sprintf "hetype=%s\nhetype'=%s\nmetasenv=%s\nsubst=%s" (CicPp.ppterm hetype) (CicPp.ppterm hetype') - (CicMetaSubst.ppmetasenv metasenv []) - (CicMetaSubst.ppsubst subst)); + (CicMetaSubst.ppmetasenv [] metasenv) + (CicMetaSubst.ppsubst subst))); raise exn in @@ -963,7 +974,7 @@ let type_of_aux' metasenv context term ugraph = try type_of_aux' metasenv context term ugraph with - CicUniv.UniverseInconsistency msg -> raise (RefineFailure msg) + CicUniv.UniverseInconsistency msg -> raise (RefineFailure (Reason msg)) (*CSC: this is a very very rough approximation; to be finished *) let are_all_occurrences_positive uri = @@ -973,7 +984,7 @@ let are_all_occurrences_positive uri = Cic.Appl (Cic.MutInd (uri',_,_)::_) when uri = uri' -> () | Cic.MutInd (uri',_,_) when uri = uri' -> () | Cic.Prod (_,_,t) -> aux t - | _ -> raise (RefineFailure "not well formed constructor type") + | _ -> raise (RefineFailure (Reason "not well formed constructor type")) in aux @@ -1002,7 +1013,7 @@ let typecheck metasenv uri obj = (* instead of raising Uncertain, let's hope that the meta will become a sort *) | Cic.Meta _ -> () - | _ -> raise (RefineFailure "The term provided is not a type") + | _ -> raise (RefineFailure (Reason "The term provided is not a type")) end; let subst,metasenv,ugraph = fo_unif_subst [] [] metasenv boty ty' ugraph in let bo' = CicMetaSubst.apply_subst subst bo' in @@ -1063,16 +1074,24 @@ let type_of_aux' metasenv context term = try let (t,ty,m) = type_of_aux' metasenv context term in - debug_print - ("@@@ REFINE SUCCESSFUL: " ^ CicPp.ppterm t ^ " : " ^ CicPp.ppterm ty); - debug_print - ("@@@ REFINE SUCCESSFUL (metasenv):\n" ^ CicMetaSubst.ppmetasenv ~sep:";" m []); + debug_print (lazy + ("@@@ REFINE SUCCESSFUL: " ^ CicPp.ppterm t ^ " : " ^ CicPp.ppterm ty)); + debug_print (lazy + ("@@@ REFINE SUCCESSFUL (metasenv):\n" ^ CicMetaSubst.ppmetasenv ~sep:";" m [])); (t,ty,m) with | RefineFailure msg as e -> - debug_print ("@@@ REFINE FAILED: " ^ msg); + debug_print (lazy ("@@@ REFINE FAILED: " ^ msg)); raise e | Uncertain msg as e -> - debug_print ("@@@ REFINE UNCERTAIN: " ^ msg); + debug_print (lazy ("@@@ REFINE UNCERTAIN: " ^ msg)); raise e ;; *) + +let profiler2 = HExtlib.profile "CicRefine" + +let type_of_aux' metasenv context term ugraph = + profiler2.HExtlib.profile (type_of_aux' metasenv context term) ugraph + +let typecheck metasenv uri obj = + profiler2.HExtlib.profile (typecheck metasenv uri) obj