diff options
Diffstat (limited to 'checker')
37 files changed, 542 insertions, 158 deletions
diff --git a/checker/check.ml b/checker/check.ml index b3b4034258..180ca1ece1 100644 --- a/checker/check.ml +++ b/checker/check.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/check_stat.ml b/checker/check_stat.ml index 741f532848..9751b45975 100644 --- a/checker/check_stat.ml +++ b/checker/check_stat.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/check_stat.mli b/checker/check_stat.mli index 39e19d10e4..cfa1e7b067 100644 --- a/checker/check_stat.mli +++ b/checker/check_stat.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/checker.ml b/checker/checker.ml index e00f47a540..7a69700d28 100644 --- a/checker/checker.ml +++ b/checker/checker.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/cic.mli b/checker/cic.mli index 3645587554..14fa7c7746 100644 --- a/checker/cic.mli +++ b/checker/cic.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -209,7 +209,9 @@ type constant_def = | Def of constr_substituted | OpaqueDef of lazy_constr -type constant_universes = Univ.universe_context +type constant_universes = + | Monomorphic_const of Univ.universe_context + | Polymorphic_const of Univ.abstract_universe_context (** The [typing_flags] are instructions to the type-checker which modify its behaviour. The typing flags used in the type-checking @@ -226,7 +228,6 @@ type constant_body = { const_body : constant_def; const_type : constant_type; const_body_code : to_patch_substituted; - const_polymorphic : bool; (** Is it polymorphic or not *) const_universes : constant_universes; const_proj : projection_body option; const_inline_code : bool; @@ -303,6 +304,11 @@ type one_inductive_body = { mind_reloc_tbl : reloc_table; } +type abstract_inductive_universes = + | Monomorphic_ind of Univ.universe_context + | Polymorphic_ind of Univ.abstract_universe_context + | Cumulative_ind of Univ.abstract_cumulativity_info + type mutual_inductive_body = { mind_packets : one_inductive_body array; (** The component of the mutual inductive block *) @@ -321,9 +327,7 @@ type mutual_inductive_body = { mind_params_ctxt : rel_context; (** The context of parameters (includes let-in declaration) *) - mind_polymorphic : bool; (** Is it polymorphic or not *) - - mind_universes : Univ.universe_context; (** Local universe variables and constraints *) + mind_universes : abstract_inductive_universes; (** Local universe variables and constraints together with subtyping constraints *) mind_private : bool option; (** allow pattern-matching: Some true ok, Some false blocked *) diff --git a/checker/closure.ml b/checker/closure.ml index b8294e7958..70718bfdca 100644 --- a/checker/closure.ml +++ b/checker/closure.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -328,6 +328,12 @@ let zshift n s = | (_,Zshift(k)::s) -> Zshift(n+k)::s | _ -> Zshift(n)::s +let rec stack_args_size = function + | Zapp v :: s -> Array.length v + stack_args_size s + | Zshift(_)::s -> stack_args_size s + | Zupdate(_)::s -> stack_args_size s + | _ -> 0 + (* Lifting. Preserves sharing (useful only for cell with norm=Red). lft_fconstr always create a new cell, while lift_fconstr avoids it when the lift is 0. *) diff --git a/checker/closure.mli b/checker/closure.mli index 8b1f246c28..ed5bb3d094 100644 --- a/checker/closure.mli +++ b/checker/closure.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -125,6 +125,9 @@ type stack_member = and stack = stack_member list val append_stack : fconstr array -> stack -> stack + +val stack_args_size : stack -> int + val eta_expand_stack : stack -> stack val eta_expand_ind_stack : env -> inductive -> fconstr -> stack -> diff --git a/checker/declarations.ml b/checker/declarations.ml index ad93146d55..2eefe47816 100644 --- a/checker/declarations.ml +++ b/checker/declarations.ml @@ -521,6 +521,11 @@ let subst_template_cst_arity sub (ctx,s as arity) = let subst_arity sub s = subst_decl_arity subst_mps subst_template_cst_arity sub s +let constant_is_polymorphic cb = + match cb.const_universes with + | Monomorphic_const _ -> false + | Polymorphic_const _ -> true + (* TODO: should be changed to non-coping after Term.subst_mps *) (* NB: we leave bytecode and native code fields untouched *) let subst_const_body sub cb = diff --git a/checker/declarations.mli b/checker/declarations.mli index 456df83699..6fc71bb942 100644 --- a/checker/declarations.mli +++ b/checker/declarations.mli @@ -14,6 +14,7 @@ val body_of_constant : constant_body -> constr option val constant_has_body : constant_body -> bool val is_opaque : constant_body -> bool val opaque_univ_context : constant_body -> Univ.ContextSet.t +val constant_is_polymorphic : constant_body -> bool (* Mutual inductives *) diff --git a/checker/environ.ml b/checker/environ.ml index 22d1eec178..d3f393c651 100644 --- a/checker/environ.ml +++ b/checker/environ.ml @@ -115,13 +115,14 @@ let add_constant kn cs env = env_constants = new_constants } in { env with env_globals = new_globals } -type const_evaluation_result = NoBody | Opaque +type const_evaluation_result = NoBody | Opaque | IsProj (* Constant types *) let constraints_of cb u = - let univs = cb.const_universes in - Univ.subst_instance_constraints u (Univ.UContext.constraints univs) + match cb.const_universes with + | Monomorphic_const _ -> Univ.Constraint.empty + | Polymorphic_const ctx -> Univ.AUContext.instantiate u ctx let map_regular_arity f = function | RegularArity a as ar -> @@ -132,23 +133,28 @@ let map_regular_arity f = function (* constant_type gives the type of a constant *) let constant_type env (kn,u) = let cb = lookup_constant kn env in - if cb.const_polymorphic then - let csts = constraints_of cb u in - (map_regular_arity (subst_instance_constr u) cb.const_type, csts) - else cb.const_type, Univ.Constraint.empty + match cb.const_universes with + | Monomorphic_const _ -> cb.const_type, Univ.Constraint.empty + | Polymorphic_const ctx -> + let csts = constraints_of cb u in + (map_regular_arity (subst_instance_constr u) cb.const_type, csts) exception NotEvaluableConst of const_evaluation_result let constant_value env (kn,u) = let cb = lookup_constant kn env in + if cb.const_proj = None then match cb.const_body with | Def l_body -> let b = force_constr l_body in - if cb.const_polymorphic then - subst_instance_constr u (force_constr l_body) - else b + begin + match cb.const_universes with + | Monomorphic_const _ -> b + | Polymorphic_const _ -> subst_instance_constr u (force_constr l_body) + end | OpaqueDef _ -> raise (NotEvaluableConst Opaque) | Undef _ -> raise (NotEvaluableConst NoBody) + else raise (NotEvaluableConst IsProj) (* A global const is evaluable if it is defined and not opaque *) let evaluable_constant cst env = diff --git a/checker/environ.mli b/checker/environ.mli index 87f143d1bb..754c295d27 100644 --- a/checker/environ.mli +++ b/checker/environ.mli @@ -47,7 +47,7 @@ val check_constraints : Univ.constraints -> env -> bool val lookup_constant : constant -> env -> Cic.constant_body val add_constant : constant -> Cic.constant_body -> env -> env val constant_type : env -> constant puniverses -> constant_type Univ.constrained -type const_evaluation_result = NoBody | Opaque +type const_evaluation_result = NoBody | Opaque | IsProj exception NotEvaluableConst of const_evaluation_result val constant_value : env -> constant puniverses -> constr val evaluable_constant : constant -> env -> bool diff --git a/checker/indtypes.ml b/checker/indtypes.ml index 6c38f38e29..92e94c1ab0 100644 --- a/checker/indtypes.ml +++ b/checker/indtypes.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -524,13 +524,67 @@ let check_positivity env_ar mind params nrecp inds = let wfp = Rtree.mk_rec irecargs in Array.iter2 (fun ind wfpi -> check_subtree ind.mind_recargs wfpi) inds wfp +(* Check arities and constructors *) +let check_subtyping_arity_constructor env (subst : constr -> constr) (arcn : constr) numparams is_arity = + let numchecked = ref 0 in + let basic_check ev tp = + if !numchecked < numparams then () else conv_leq ev tp (subst tp); + numchecked := !numchecked + 1 + in + let check_typ typ typ_env = + match typ with + | LocalAssum (_, typ') -> + begin + try + basic_check typ_env typ'; Environ.push_rel typ typ_env + with NotConvertible -> + anomaly ~label:"bad inductive subtyping relation" (Pp.str "Invalid subtyping relation") + end + | _ -> anomaly (Pp.str "") + in + let typs, codom = dest_prod env arcn in + let last_env = fold_rel_context_outside check_typ typs ~init:env in + if not is_arity then basic_check last_env codom else () + +(* Check that the subtyping information inferred for inductive types in the block is correct. *) +(* This check produces a value of the unit type if successful or raises an anomaly if check fails. *) +let check_subtyping cumi paramsctxt env_ar inds = + let numparams = rel_context_nhyps paramsctxt in + let sbsubst = Univ.CumulativityInfo.subtyping_susbst cumi in + let other_instnace = Univ.CumulativityInfo.subtyping_other_instance cumi in + let dosubst = subst_univs_level_constr sbsubst in + let uctx = Univ.CumulativityInfo.univ_context cumi in + let uctx_other = Univ.UContext.make (other_instnace, Univ.UContext.constraints uctx) in + let env = Environ.push_context uctx env_ar + in + let env = Environ.push_context uctx_other env + in + let env = Environ.push_context + (Univ.CumulativityInfo.subtyp_context cumi) env + in + (* process individual inductive types: *) + Array.iter (fun { mind_user_lc = lc; mind_arity = arity } -> + match arity with + | RegularArity { mind_user_arity = full_arity} -> + check_subtyping_arity_constructor env dosubst full_arity numparams true; + Array.iter (fun cnt -> check_subtyping_arity_constructor env dosubst cnt numparams false) lc + | TemplateArity _ -> () + ) inds + (************************************************************************) (************************************************************************) let check_inductive env kn mib = Flags.if_verbose Feedback.msg_notice (str " checking ind: " ++ MutInd.print kn); (* check mind_constraints: should be consistent with env *) - let env = Environ.push_context (Univ.instantiate_univ_context mib.mind_universes) env in + let ind_ctx = + match mib.mind_universes with + | Monomorphic_ind ctx -> ctx + | Polymorphic_ind auctx -> Univ.instantiate_univ_context auctx + | Cumulative_ind cumi -> + Univ.instantiate_univ_context (Univ.ACumulativityInfo.univ_context cumi) + in + let env = Environ.push_context ind_ctx env in (* check mind_record : TODO ? check #constructor = 1 ? *) (* check mind_finite : always OK *) (* check mind_ntypes *) @@ -547,6 +601,14 @@ let check_inductive env kn mib = let env_ar = typecheck_arity env params mib.mind_packets in (* - check constructor types *) Array.iter (typecheck_one_inductive env_ar params mib) mib.mind_packets; + (* check the inferred subtyping relation *) + let () = + match mib.mind_universes with + | Monomorphic_ind _ | Polymorphic_ind _ -> () + | Cumulative_ind acumi -> + check_subtyping + (Univ.instantiate_cumulativity_info acumi) params env_ar mib.mind_packets + in (* check mind_nparams_rec: positivity condition *) check_positivity env_ar kn params mib.mind_nparams_rec mib.mind_packets; (* check mind_equiv... *) diff --git a/checker/indtypes.mli b/checker/indtypes.mli index 071eecbbcd..7eaaf65f22 100644 --- a/checker/indtypes.mli +++ b/checker/indtypes.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/inductive.ml b/checker/inductive.ml index f890adba9a..1271a02b0e 100644 --- a/checker/inductive.ml +++ b/checker/inductive.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -54,10 +54,17 @@ let inductive_params (mib,_) = mib.mind_nparams (** Polymorphic inductives *) -let inductive_instance mib = - if mib.mind_polymorphic then - UContext.instance mib.mind_universes - else Instance.empty +let inductive_is_polymorphic mib = + match mib.mind_universes with + | Monomorphic_ind _ -> false + | Polymorphic_ind ctx -> true + | Cumulative_ind cumi -> true + +let inductive_is_cumulative mib = + match mib.mind_universes with + | Monomorphic_ind _ -> false + | Polymorphic_ind ctx -> false + | Cumulative_ind cumi -> true (************************************************************************) @@ -93,7 +100,7 @@ let instantiate_params full t u args sign = let full_inductive_instantiate mib u params sign = let dummy = Prop Null in - let t = mkArity (subst_instance_context u sign,dummy) in + let t = mkArity (Term.subst_instance_context u sign,dummy) in fst (destArity (instantiate_params true t u params mib.mind_params_ctxt)) let full_constructor_instantiate ((mind,_),u,(mib,_),params) t = @@ -199,7 +206,7 @@ let instantiate_universes env ctx ar argsorts = let type_of_inductive_gen env ((mib,mip),u) paramtyps = match mip.mind_arity with | RegularArity a -> - if not mib.mind_polymorphic then a.mind_user_arity + if not (inductive_is_polymorphic mib) then a.mind_user_arity else subst_instance_constr u a.mind_user_arity | TemplateArity ar -> let ctx = List.rev mip.mind_arity_ctxt in diff --git a/checker/inductive.mli b/checker/inductive.mli index ed3a7b53ce..8f605935db 100644 --- a/checker/inductive.mli +++ b/checker/inductive.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -22,7 +22,9 @@ type mind_specif = mutual_inductive_body * one_inductive_body Raises [Not_found] if the inductive type is not found. *) val lookup_mind_specif : env -> inductive -> mind_specif -val inductive_instance : mutual_inductive_body -> Univ.universe_instance +val inductive_is_polymorphic : mutual_inductive_body -> bool + +val inductive_is_cumulative : mutual_inductive_body -> bool val type_of_inductive : env -> mind_specif puniverses -> constr diff --git a/checker/mod_checking.ml b/checker/mod_checking.ml index 7f93e15609..15e9ae2951 100644 --- a/checker/mod_checking.ml +++ b/checker/mod_checking.ml @@ -1,4 +1,3 @@ - open Pp open Util open Names @@ -26,21 +25,23 @@ let refresh_arity ar = | _ -> ar, Univ.ContextSet.empty let check_constant_declaration env kn cb = - Flags.if_verbose Feedback.msg_notice (str " checking cst: " ++ prcon kn); - let env' = - if cb.const_polymorphic then - let inst = Univ.make_abstract_instance cb.const_universes in - let ctx = Univ.UContext.make (inst, Univ.UContext.constraints cb.const_universes) in - push_context ~strict:false ctx env - else push_context ~strict:true cb.const_universes env + Feedback.msg_notice (str " checking cst:" ++ prcon kn); + let env', u = + match cb.const_universes with + | Monomorphic_const ctx -> push_context ~strict:true ctx env, Univ.Instance.empty + | Polymorphic_const auctx -> + let ctx = Univ.instantiate_univ_context auctx in + push_context ~strict:false ctx env, Univ.UContext.instance ctx in let envty, ty = match cb.const_type with RegularArity ty -> + let ty = subst_instance_constr u ty in let ty', cu = refresh_arity ty in let envty = push_context_set cu env' in let _ = infer_type envty ty' in envty, ty | TemplateArity(ctxt,par) -> + assert(Univ.Instance.is_empty u); let _ = check_ctxt env' ctxt in check_polymorphic_arity env' ctxt par; env', it_mkProd_or_LetIn (Sort(Type par.template_level)) ctxt @@ -48,6 +49,7 @@ let check_constant_declaration env kn cb = let () = match body_of_constant cb with | Some bd -> + let bd = subst_instance_constr u bd in (match cb.const_proj with | None -> let j = infer envty bd in conv_leq envty j ty @@ -57,7 +59,7 @@ let check_constant_declaration env kn cb = conv_leq envty j ty) | None -> () in - if cb.const_polymorphic then add_constant kn cb env + if constant_is_polymorphic cb then add_constant kn cb env else add_constant kn cb env' (** {6 Checking modules } *) diff --git a/checker/mod_checking.mli b/checker/mod_checking.mli index 5c7b392ffd..16a3792aa1 100644 --- a/checker/mod_checking.mli +++ b/checker/mod_checking.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/modops.ml b/checker/modops.ml index bed31143bf..79cd5c29fd 100644 --- a/checker/modops.ml +++ b/checker/modops.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -83,10 +83,10 @@ let strengthen_const mp_from l cb resolver = | Def _ -> cb | _ -> let con = Constant.make2 mp_from l in - let u = - if cb.const_polymorphic then - Univ.make_abstract_instance cb.const_universes - else Univ.Instance.empty + let u = + match cb.const_universes with + | Monomorphic_const _ -> Univ.Instance.empty + | Polymorphic_const auctx -> Univ.make_abstract_instance auctx in { cb with const_body = Def (Declarations.from_val (Const (con,u))) } diff --git a/checker/modops.mli b/checker/modops.mli index 26a088f32b..0efff63c82 100644 --- a/checker/modops.mli +++ b/checker/modops.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/print.ml b/checker/print.ml index 7ef752b002..84c327941e 100644 --- a/checker/print.ml +++ b/checker/print.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/reduction.ml b/checker/reduction.ml index ba0b017844..6d8783d7e5 100644 --- a/checker/reduction.ml +++ b/checker/reduction.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -117,6 +117,10 @@ let beta_appvect c v = (* Conversion *) (********************************************************************) +type conv_pb = + | CONV + | CUMUL + (* Conversion utility functions *) type 'a conversion_function = env -> 'a -> 'a -> unit @@ -152,11 +156,60 @@ let compare_stacks f fmind lft1 stk1 lft2 stk2 = cmp_rec (pure_stack lft1 stk1) (pure_stack lft2 stk2) else raise NotConvertible -(* Convertibility of sorts *) +let convert_inductive_instances cv_pb cumi u u' univs = + let len_instance = + Univ.AUContext.size (Univ.ACumulativityInfo.univ_context cumi) in + let ind_subtypctx = Univ.ACumulativityInfo.subtyp_context cumi in + if not ((len_instance = Univ.Instance.length u) && + (len_instance = Univ.Instance.length u')) then + anomaly (Pp.str "Invalid inductive subtyping encountered!") + else + let comp_cst = + let comp_subst = (Univ.Instance.append u u') in + Univ.AUContext.instantiate comp_subst ind_subtypctx + in + let comp_cst = + match cv_pb with + CONV -> + let comp_cst' = + let comp_subst = (Univ.Instance.append u' u) in + Univ.AUContext.instantiate comp_subst ind_subtypctx + in + Univ.Constraint.union comp_cst comp_cst' + | CUMUL -> comp_cst + in + if (Univ.check_constraints comp_cst univs) then () else raise NotConvertible + +let convert_inductives + cv_pb (mind, ind) u1 sv1 u2 sv2 univs = + match mind.mind_universes with + | Monomorphic_ind _ | Polymorphic_ind _ -> convert_universes univs u1 u2 + | Cumulative_ind cumi -> + let num_param_arity = + mind.mind_nparams + mind.mind_packets.(ind).mind_nrealargs + in + if not (num_param_arity = sv1 && num_param_arity = sv2) then + convert_universes univs u1 u2 + else + convert_inductive_instances cv_pb cumi u1 u2 univs + +let convert_constructors + (mind, ind, cns) u1 sv1 u2 sv2 univs = + match mind.mind_universes with + | Monomorphic_ind _ | Polymorphic_ind _ -> convert_universes univs u1 u2 + | Cumulative_ind cumi -> + let num_cnstr_args = + let nparamsctxt = + mind.mind_nparams + mind.mind_packets.(ind).mind_nrealargs + in + nparamsctxt + mind.mind_packets.(ind).mind_consnrealargs.(cns - 1) + in + if not (num_cnstr_args = sv1 && num_cnstr_args = sv2) then + convert_universes univs u1 u2 + else + convert_inductive_instances CONV cumi u1 u2 univs -type conv_pb = - | CONV - | CUMUL +(* Convertibility of sorts *) let sort_cmp env univ pb s0 s1 = match (s0,s1) with @@ -375,18 +428,37 @@ and eqappr univ cv_pb infos (lft1,st1) (lft2,st2) = (* Inductive types: MutInd MutConstruct Fix Cofix *) | (FInd (ind1,u1), FInd (ind2,u2)) -> - if mind_equiv_infos infos ind1 ind2 - then - (let () = convert_universes univ u1 u2 in - convert_stacks univ infos lft1 lft2 v1 v2) - else raise NotConvertible - - | (FConstruct ((ind1,j1),u1), FConstruct ((ind2,j2),u2)) -> - if Int.equal j1 j2 && mind_equiv_infos infos ind1 ind2 - then - (let () = convert_universes univ u1 u2 in - convert_stacks univ infos lft1 lft2 v1 v2) - else raise NotConvertible + if mind_equiv_infos infos ind1 ind2 then + if Univ.Instance.length u1 = 0 || Univ.Instance.length u2 = 0 then + begin + convert_universes univ u1 u2; + convert_stacks univ infos lft1 lft2 v1 v2 + end + else + let mind = Environ.lookup_mind (fst ind1) (infos_env infos) in + let () = + convert_inductives cv_pb (mind, snd ind1) u1 (stack_args_size v1) + u2 (stack_args_size v2) univ + in + convert_stacks univ infos lft1 lft2 v1 v2 + else raise NotConvertible + + | (FConstruct ((ind1,j1),u1), FConstruct ((ind2,j2),u2)) -> + if Int.equal j1 j2 && mind_equiv_infos infos ind1 ind2 then + if Univ.Instance.length u1 = 0 || Univ.Instance.length u2 = 0 then + begin + convert_universes univ u1 u2; + convert_stacks univ infos lft1 lft2 v1 v2 + end + else + let mind = Environ.lookup_mind (fst ind1) (infos_env infos) in + let () = + convert_constructors + (mind, snd ind1, j1) u1 (stack_args_size v1) + u2 (stack_args_size v2) univ + in + convert_stacks univ infos lft1 lft2 v1 v2 + else raise NotConvertible (* Eta expansion of records *) | (FConstruct ((ind1,j1),u1), _) -> diff --git a/checker/reduction.mli b/checker/reduction.mli index 15a2df1f14..d0fa40e62d 100644 --- a/checker/reduction.mli +++ b/checker/reduction.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/safe_typing.ml b/checker/safe_typing.ml index c70cd5c8ce..5d7784e777 100644 --- a/checker/safe_typing.ml +++ b/checker/safe_typing.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/safe_typing.mli b/checker/safe_typing.mli index 8724f8e014..0eaeb1243c 100644 --- a/checker/safe_typing.mli +++ b/checker/safe_typing.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/subtyping.ml b/checker/subtyping.ml index 2d04b77e46..3097c3a0b9 100644 --- a/checker/subtyping.ml +++ b/checker/subtyping.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -81,6 +81,14 @@ let check_conv_error error f env a1 a2 = with NotConvertible -> error () +let check_polymorphic_instance error env auctx1 auctx2 = + if not (Univ.AUContext.size auctx1 == Univ.AUContext.size auctx2) then + error () + else if not (Univ.check_subtype (Environ.universes env) auctx2 auctx1) then + error () + else + Environ.push_context ~strict:false (Univ.AUContext.repr auctx2) env + (* for now we do not allow reorderings *) let check_inductive env mp1 l info1 mib2 spec2 subst1 subst2= let kn = MutInd.make2 mp1 l in @@ -88,18 +96,23 @@ let check_inductive env mp1 l info1 mib2 spec2 subst1 subst2= let check_conv f = check_conv_error error f in let mib1 = match info1 with - | IndType ((_,0), mib) -> mib + | IndType ((_,0), mib) -> subst_mind subst1 mib | _ -> error () in let mib2 = subst_mind subst2 mib2 in let check eq f = if not (eq (f mib1) (f mib2)) then error () in - let bool_equal (x : bool) (y : bool) = x = y in - let u = - check bool_equal (fun x -> x.mind_polymorphic); - if mib1.mind_polymorphic then ( - check Univ.Instance.equal (fun x -> Univ.UContext.instance x.mind_universes); - Univ.UContext.instance mib1.mind_universes) - else Univ.Instance.empty + let env, u = + match mib1.mind_universes, mib2.mind_universes with + | Monomorphic_ind _, Monomorphic_ind _ -> env, Univ.Instance.empty + | Polymorphic_ind auctx, Polymorphic_ind auctx' -> + let env = check_polymorphic_instance error env auctx auctx' in + env, Univ.make_abstract_instance auctx' + | Cumulative_ind cumi, Cumulative_ind cumi' -> + let auctx = Univ.ACumulativityInfo.univ_context cumi in + let auctx' = Univ.ACumulativityInfo.univ_context cumi' in + let env = check_polymorphic_instance error env auctx auctx' in + env, Univ.make_abstract_instance auctx' + | _ -> error () in let eq_projection_body p1 p2 = let check eq f = if not (eq (f p1) (f p2)) then error () in @@ -111,7 +124,7 @@ let check_inductive env mp1 l info1 mib2 spec2 subst1 subst2= check (eq_constr) (fun x -> snd x.proj_eta); check (eq_constr) (fun x -> x.proj_body); true in - let check_inductive_type env t1 t2 = + let check_inductive_type t1 t2 = (* Due to template polymorphism, the conclusions of t1 and t2, if in Type, are generated as the least upper bounds @@ -163,8 +176,8 @@ let check_inductive env mp1 l info1 mib2 spec2 subst1 subst2= (* nparams done *) (* params_ctxt done because part of the inductive types *) (* Don't check the sort of the type if polymorphic *) - check_inductive_type env - (type_of_inductive env ((mib1,p1),u)) (type_of_inductive env ((mib2,p2),u)) + check_inductive_type + (type_of_inductive env ((mib1,p1), u)) (type_of_inductive env ((mib2,p2),u)) in let check_cons_types i p1 p2 = Array.iter2 (check_conv conv env) @@ -302,27 +315,17 @@ let check_constant env mp1 l info1 cb2 spec2 subst1 subst2 = let c2 = force_constr lc2 in check_conv conv env c1 c2)) | IndType ((kn,i),mind1) -> - ignore (CErrors.user_err (Pp.str ( + CErrors.user_err (Pp.str ( "The kernel does not recognize yet that a parameter can be " ^ "instantiated by an inductive type. Hint: you can rename the " ^ "inductive type and give a definition to map the old name to the new " ^ - "name."))); - if constant_has_body cb2 then error () ; - let u = inductive_instance mind1 in - let arity1 = type_of_inductive env ((mind1,mind1.mind_packets.(i)),u) in - let typ2 = Typeops.type_of_constant_type env cb2.const_type in - check_conv conv_leq env arity1 typ2 - | IndConstr (((kn,i),j) as cstr,mind1) -> - ignore (CErrors.user_err (Pp.str ( + "name.")) + | IndConstr (((kn,i),j),mind1) -> + CErrors.user_err (Pp.str ( "The kernel does not recognize yet that a parameter can be " ^ "instantiated by a constructor. Hint: you can rename the " ^ "constructor and give a definition to map the old name to the new " ^ - "name."))); - if constant_has_body cb2 then error () ; - let u1 = inductive_instance mind1 in - let ty1 = type_of_constructor (cstr,u1) (mind1,mind1.mind_packets.(i)) in - let ty2 = Typeops.type_of_constant_type env cb2.const_type in - check_conv conv env ty1 ty2 + "name.")) let rec check_modules env msb1 msb2 subst1 subst2 = let mty1 = module_type_of_module None msb1 in diff --git a/checker/subtyping.mli b/checker/subtyping.mli index cc66fc5382..b1cfac2781 100644 --- a/checker/subtyping.mli +++ b/checker/subtyping.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/term.ml b/checker/term.ml index 75c566aeb7..9bcb15bc72 100644 --- a/checker/term.ml +++ b/checker/term.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -227,6 +227,8 @@ let rel_context_nhyps hyps = nhyps 0 hyps let fold_rel_context f l ~init = List.fold_right f l init +let fold_rel_context_outside f l ~init = List.fold_right f l init + let map_rel_decl f = function | LocalAssum (n, typ) as decl -> let typ' = f typ in @@ -414,6 +416,42 @@ let subst_instance_constr subst c = if Univ.Instance.is_empty subst then c else let f u = Univ.subst_instance_instance subst u in + let rec aux t = + match t with + | Const (c, u) -> + if Univ.Instance.is_empty u then t + else + let u' = f u in + if u' == u then t + else (Const (c, u')) + | Ind (i, u) -> + if Univ.Instance.is_empty u then t + else + let u' = f u in + if u' == u then t + else (Ind (i, u')) + | Construct (c, u) -> + if Univ.Instance.is_empty u then t + else + let u' = f u in + if u' == u then t + else (Construct (c, u')) + | Sort (Type u) -> + let u' = Univ.subst_instance_universe subst u in + if u' == u then t else + (Sort (sort_of_univ u')) + | _ -> map_constr aux t + in + aux c + +let subst_instance_context s ctx = + if Univ.Instance.is_empty s then ctx + else map_rel_context (fun x -> subst_instance_constr s x) ctx + +let subst_univs_level_constr subst c = + if Univ.is_empty_level_subst subst then c + else + let f = Univ.Instance.subst_fn (Univ.subst_univs_level_level subst) in let changed = ref false in let rec aux t = match t with @@ -436,14 +474,10 @@ let subst_instance_constr subst c = if u' == u then t else (changed := true; Construct (c, u')) | Sort (Type u) -> - let u' = Univ.subst_instance_universe subst u in + let u' = Univ.subst_univs_level_universe subst u in if u' == u then t else (changed := true; Sort (sort_of_univ u')) | _ -> map_constr aux t in let c' = aux c in if !changed then c' else c - -let subst_instance_context s ctx = - if Univ.Instance.is_empty s then ctx - else map_rel_context (fun x -> subst_instance_constr s x) ctx diff --git a/checker/term.mli b/checker/term.mli index 6b026d056f..ccf5b59e0c 100644 --- a/checker/term.mli +++ b/checker/term.mli @@ -33,6 +33,8 @@ val rel_context_length : rel_context -> int val rel_context_nhyps : rel_context -> int val fold_rel_context : (rel_declaration -> 'a -> 'a) -> rel_context -> init:'a -> 'a +val fold_rel_context_outside : + (rel_declaration -> 'a -> 'a) -> rel_context -> init:'a -> 'a val map_rel_decl : (constr -> constr) -> rel_declaration -> rel_declaration val map_rel_context : (constr -> constr) -> rel_context -> rel_context val extended_rel_list : int -> rel_context -> constr list @@ -55,3 +57,4 @@ val eq_constr : constr -> constr -> bool (** Instance substitution for polymorphism. *) val subst_instance_constr : Univ.universe_instance -> constr -> constr val subst_instance_context : Univ.universe_instance -> rel_context -> rel_context +val subst_univs_level_constr : Univ.universe_level_subst -> constr -> constr diff --git a/checker/type_errors.ml b/checker/type_errors.ml index b7718e02da..c5a69efdcd 100644 --- a/checker/type_errors.ml +++ b/checker/type_errors.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/type_errors.mli b/checker/type_errors.mli index d9d1479580..b5f14c7189 100644 --- a/checker/type_errors.mli +++ b/checker/type_errors.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/typeops.ml b/checker/typeops.ml index 0163db3347..f2cbfec7db 100644 --- a/checker/typeops.ml +++ b/checker/typeops.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -329,7 +329,6 @@ let rec execute env cstr = let pj = execute env p in let lfj = execute_array env lf in judge_of_case env ci (p,pj) (c,cj) lfj - | Fix ((_,i as vni),recdef) -> let fix_ty = execute_recdef env recdef i in let fix = (vni,recdef) in diff --git a/checker/typeops.mli b/checker/typeops.mli index db8e467a33..2be461b052 100644 --- a/checker/typeops.mli +++ b/checker/typeops.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/univ.ml b/checker/univ.ml index 5717432315..2cd4252b20 100644 --- a/checker/univ.ml +++ b/checker/univ.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -968,7 +968,23 @@ struct else Level.compare v v' end -module Constraint = Set.Make(UConstraintOrd) +let pr_constraint_type op = + let op_str = match op with + | Lt -> " < " + | Le -> " <= " + | Eq -> " = " + in str op_str + +module Constraint = +struct + module S = Set.Make(UConstraintOrd) + include S + + let pr prl c = + fold (fun (u1,op,u2) pp_std -> + pp_std ++ prl u1 ++ pr_constraint_type op ++ + prl u2 ++ fnl () ) c (str "") +end let empty_constraint = Constraint.empty let merge_constraints c g = @@ -1056,7 +1072,9 @@ module Instance : sig val subst_fn : universe_level_subst_fn -> t -> t val subst : universe_level_subst -> t -> t val pr : t -> Pp.std_ppcmds - val check_eq : t check_function + val check_eq : t check_function + val length : t -> int + val append : t -> t -> t end = struct type t = Level.t array @@ -1099,6 +1117,7 @@ struct (* [h] must be positive. *) let h = !accu land 0x3FFFFFFF in h + end module HInstance = Hashcons.Make(HInstancestruct) @@ -1135,8 +1154,39 @@ struct (Int.equal i (Array.length t1)) || (check_eq_level g t1.(i) t2.(i) && aux (i + 1)) in aux 0) + let length = Array.length + + let append = Array.append + end +(** Substitute instance inst for ctx in csts *) + +let subst_instance_level s l = + match l.Level.data with + | Level.Var n -> s.(n) + | _ -> l + +let subst_instance_instance s i = + Array.smartmap (fun l -> subst_instance_level s l) i + +let subst_instance_universe s u = + let f x = Universe.Expr.map (fun u -> subst_instance_level s u) x in + let u' = Universe.smartmap f u in + if u == u' then u + else Universe.sort u' + +let subst_instance_constraint s (u,d,v as c) = + let u' = subst_instance_level s u in + let v' = subst_instance_level s v in + if u' == u && v' == v then c + else (u',d,v') + +let subst_instance_constraints s csts = + Constraint.fold + (fun c csts -> Constraint.add (subst_instance_constraint s c) csts) + csts Constraint.empty + type universe_instance = Instance.t type 'a puniverses = 'a * Instance.t @@ -1152,10 +1202,75 @@ struct let make x = x let instance (univs, cst) = univs let constraints (univs, cst) = cst + let size (univs, _) = Instance.length univs + + let is_empty (univs, cst) = Instance.is_empty univs && Constraint.is_empty cst + let pr prl (univs, cst as ctx) = + if is_empty ctx then mt() else + h 0 (Instance.pr univs ++ str " |= ") ++ h 0 (v 0 (Constraint.pr prl cst)) end type universe_context = UContext.t +module AUContext = +struct + include UContext + + let repr (inst, cst) = + (Array.mapi (fun i l -> Level.var i) inst, cst) + + let instantiate inst (u, cst) = + assert (Array.length u = Array.length inst); + subst_instance_constraints inst cst + +end + +type abstract_universe_context = AUContext.t + +module CumulativityInfo = +struct + type t = universe_context * universe_context + + let make x = + if (Array.length (UContext.instance (snd x))) = + (Array.length (UContext.instance (fst x))) * 2 then x + else anomaly (Pp.str "Invalid subtyping information encountered!") + + let empty = (UContext.empty, UContext.empty) + + let halve_context ctx = + let len = Array.length ctx in + let halflen = len / 2 in + ((Array.sub ctx 0 halflen), (Array.sub ctx halflen halflen)) + + let univ_context (univcst, subtypcst) = univcst + let subtyp_context (univcst, subtypcst) = subtypcst + + let create_trivial_subtyping ctx ctx' = + CArray.fold_left_i + (fun i cst l -> Constraint.add (l, Eq, Array.get ctx' i) cst) + Constraint.empty ctx + + let from_universe_context univcst freshunivs = + let inst = (UContext.instance univcst) in + assert (Array.length freshunivs = Array.length inst); + (univcst, UContext.make (Array.append inst freshunivs, + create_trivial_subtyping inst freshunivs)) + + let subtyping_other_instance (univcst, subtypcst) = + let (_, ctx') = (halve_context (UContext.instance subtypcst)) in ctx' + + let subtyping_susbst (univcst, subtypcst) = + let (ctx, ctx') = (halve_context (UContext.instance subtypcst)) in + Array.fold_left2 (fun subst l1 l2 -> LMap.add l1 l2 subst) LMap.empty ctx ctx' + +end + +type cumulativity_info = CumulativityInfo.t + +module ACumulativityInfo = CumulativityInfo +type abstract_cumulativity_info = ACumulativityInfo.t + module ContextSet = struct type t = LSet.t constrained @@ -1166,6 +1281,18 @@ struct end type universe_context_set = ContextSet.t +(** Instance subtyping *) + +let check_subtype univs ctxT ctx = + if AUContext.size ctx == AUContext.size ctx then + let (inst, cst) = AUContext.repr ctx in + let cstT = UContext.constraints (AUContext.repr ctxT) in + let push accu v = add_universe v false accu in + let univs = Array.fold_left push univs inst in + let univs = merge_constraints cstT univs in + check_constraints cst univs + else false + (** Substitutions. *) let is_empty_subst = LMap.is_empty @@ -1185,33 +1312,6 @@ let subst_univs_level_universe subst u = if u == u' then u else Universe.sort u' -(** Substitute instance inst for ctx in csts *) - -let subst_instance_level s l = - match l.Level.data with - | Level.Var n -> s.(n) - | _ -> l - -let subst_instance_instance s i = - Array.smartmap (fun l -> subst_instance_level s l) i - -let subst_instance_universe s u = - let f x = Universe.Expr.map (fun u -> subst_instance_level s u) x in - let u' = Universe.smartmap f u in - if u == u' then u - else Universe.sort u' - -let subst_instance_constraint s (u,d,v as c) = - let u' = subst_instance_level s u in - let v' = subst_instance_level s v in - if u' == u && v' == v then c - else (u',d,v') - -let subst_instance_constraints s csts = - Constraint.fold - (fun c csts -> Constraint.add (subst_instance_constraint s c) csts) - csts Constraint.empty - let make_abstract_instance (ctx, _) = Array.mapi (fun i l -> Level.var i) ctx @@ -1219,8 +1319,8 @@ let make_abstract_instance (ctx, _) = let instantiate_univ_context (ctx, csts) = (ctx, subst_instance_constraints ctx csts) -let instantiate_univ_constraints u (_, csts) = - subst_instance_constraints u csts +let instantiate_cumulativity_info (ctx, ctx') = + (instantiate_univ_context ctx, instantiate_univ_context ctx') (** With level to universe substitutions. *) type universe_subst_fn = universe_level -> universe @@ -1262,6 +1362,10 @@ let merge_context_set strict ctx g = (** Pretty-printing *) +let pr_constraints prl = Constraint.pr prl + +let pr_universe_context = UContext.pr + let pr_arc = function | _, Canonical {univ=u; lt=[]; le=[]} -> mt () diff --git a/checker/univ.mli b/checker/univ.mli index 7d4c629ab9..01df46fa1e 100644 --- a/checker/univ.mli +++ b/checker/univ.mli @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -18,6 +18,9 @@ sig (** Create a new universe level from a unique identifier and an associated module path. *) + val pr : t -> Pp.std_ppcmds + (** Pretty-printing *) + val equal : t -> t -> bool end @@ -71,6 +74,8 @@ type 'a check_function = universes -> 'a -> 'a -> bool val check_leq : universe check_function val check_eq : universe check_function + + (** The initial graph of universes: Prop < Set *) val initial_universes : universes @@ -170,6 +175,12 @@ sig val check_eq : t check_function (** Check equality of instances w.r.t. a universe graph *) + + val length : t -> int + (** Compute the length of the instance *) + + val append : t -> t -> t + (** Append two universe instances *) end type universe_instance = Instance.t @@ -187,9 +198,58 @@ sig val make : universe_instance constrained -> t val instance : t -> Instance.t val constraints : t -> constraints + val is_empty : t -> bool + +end + +type universe_context = UContext.t + +module AUContext : +sig + type t + + val instance : t -> Instance.t + val size : t -> int + + val instantiate : Instance.t -> t -> Constraint.t + val repr : t -> UContext.t end +type abstract_universe_context = AUContext.t + +module CumulativityInfo : +sig + type t + + val make : universe_context * universe_context -> t + + val empty : t + + val univ_context : t -> universe_context + val subtyp_context : t -> universe_context + + val from_universe_context : universe_context -> universe_instance -> t + + val subtyping_other_instance : t -> universe_instance + + val subtyping_susbst : t -> universe_level_subst + +end + +type cumulativity_info = CumulativityInfo.t + +module ACumulativityInfo : +sig + type t + + val univ_context : t -> abstract_universe_context + val subtyp_context : t -> abstract_universe_context + +end + +type abstract_cumulativity_info = ACumulativityInfo.t + module ContextSet : sig type t @@ -198,7 +258,6 @@ module ContextSet : val constraints : t -> constraints end -type universe_context = UContext.t type universe_context_set = ContextSet.t val merge_context : bool -> universe_context -> universes -> universes @@ -221,18 +280,24 @@ val subst_univs_universe : universe_subst_fn -> universe -> universe (** Substitution of instances *) val subst_instance_instance : universe_instance -> universe_instance -> universe_instance val subst_instance_universe : universe_instance -> universe -> universe -val subst_instance_constraints : universe_instance -> constraints -> constraints (* val make_instance_subst : universe_instance -> universe_level_subst *) (* val make_inverse_instance_subst : universe_instance -> universe_level_subst *) (** Get the instantiated graph. *) -val instantiate_univ_context : universe_context -> universe_context -val instantiate_univ_constraints : universe_instance -> universe_context -> constraints +val instantiate_univ_context : abstract_universe_context -> universe_context +val instantiate_cumulativity_info : abstract_cumulativity_info -> cumulativity_info (** Build the relative instance corresponding to the context *) -val make_abstract_instance : universe_context -> universe_instance - +val make_abstract_instance : abstract_universe_context -> universe_instance + +(** Check instance subtyping *) +val check_subtype : universes -> AUContext.t -> AUContext.t -> bool + (** {6 Pretty-printing of universes. } *) +val pr_constraint_type : constraint_type -> Pp.std_ppcmds +val pr_constraints : (Level.t -> Pp.std_ppcmds) -> constraints -> Pp.std_ppcmds +val pr_universe_context : (Level.t -> Pp.std_ppcmds) -> universe_context -> Pp.std_ppcmds + val pr_universes : universes -> Pp.std_ppcmds diff --git a/checker/validate.ml b/checker/validate.ml index c434ef09d3..8200405878 100644 --- a/checker/validate.ml +++ b/checker/validate.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) diff --git a/checker/values.ml b/checker/values.ml index c175aed680..e13430e98e 100644 --- a/checker/values.ml +++ b/checker/values.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -13,7 +13,7 @@ To ensure this file is up-to-date, 'make' now compares the md5 of cic.mli with a copy we maintain here: -MD5 6466d8cc443b5896cb905776df0cc49e checker/cic.mli +MD5 67309b04a86b247431fd3e580ecbb50d checker/cic.mli *) @@ -109,6 +109,8 @@ let v_cstrs = let v_instance = Annot ("instance", Array v_level) let v_context = v_tuple "universe_context" [|v_instance;v_cstrs|] +let v_abs_context = v_context (* only for clarity *) +let v_abs_cum_info = v_tuple "cumulativity_info" [|v_abs_context; v_context|] let v_context_set = v_tuple "universe_context_set" [|v_hset v_level;v_cstrs|] (** kernel/term *) @@ -215,13 +217,14 @@ let v_projbody = let v_typing_flags = v_tuple "typing_flags" [|v_bool; v_bool|] +let v_const_univs = v_sum "constant_universes" 0 [|[|v_context|]; [|v_abs_context|]|] + let v_cb = v_tuple "constant_body" [|v_section_ctxt; v_cst_def; v_cst_type; Any; - v_bool; - v_context; + v_const_univs; Opt v_projbody; v_bool; v_typing_flags|] @@ -262,6 +265,10 @@ let v_finite = v_enum "recursivity_kind" 3 let v_mind_record = Annot ("mind_record", Opt (Opt (v_tuple "record" [| v_id; Array v_cst; Array v_projbody |]))) +let v_ind_pack_univs = + v_sum "abstract_inductive_universes" 0 + [|[|v_context|]; [|v_abs_context|]; [|v_abs_cum_info|]|] + let v_ind_pack = v_tuple "mutual_inductive_body" [|Array v_one_ind; v_mind_record; @@ -271,8 +278,7 @@ let v_ind_pack = v_tuple "mutual_inductive_body" Int; Int; v_rctxt; - v_bool; - v_context; + v_ind_pack_univs; (* universes *) Opt v_bool; v_typing_flags|] diff --git a/checker/votour.ml b/checker/votour.ml index c255e5cdb2..0998bb94b1 100644 --- a/checker/votour.ml +++ b/checker/votour.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) |