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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2012 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
open Pp
open Util
open Names
open Term
open Context
open Environ
open Globnames
open Decl_kinds
open Evd
open Misctypes
open Clenv
open Pattern
open Vernacexpr
(** {6 General functions. } *)
exception Bound
val decompose_app_bound : constr -> global_reference * constr array
(** Pre-created hint databases *)
type 'a auto_tactic =
| Res_pf of 'a (* Hint Apply *)
| ERes_pf of 'a (* Hint EApply *)
| Give_exact of 'a
| Res_pf_THEN_trivial_fail of 'a (* Hint Immediate *)
| Unfold_nth of evaluable_global_reference (* Hint Unfold *)
| Extern of Tacexpr.glob_tactic_expr (* Hint Extern *)
type hints_path_atom =
| PathHints of global_reference list
| PathAny
type 'a gen_auto_tactic = {
pri : int; (** A number between 0 and 4, 4 = lower priority *)
poly : polymorphic; (** Is the hint polymorpic and hence should be refreshed at each application *)
pat : constr_pattern option; (** A pattern for the concl of the Goal *)
name : hints_path_atom; (** A potential name to refer to the hint *)
code : 'a auto_tactic; (** the tactic to apply when the concl matches pat *)
}
type pri_auto_tactic = (constr * clausenv) gen_auto_tactic
type search_entry
(** The head may not be bound. *)
type hint_entry = global_reference option *
(constr * types * Univ.universe_context_set) gen_auto_tactic
type hints_path =
| PathAtom of hints_path_atom
| PathStar of hints_path
| PathSeq of hints_path * hints_path
| PathOr of hints_path * hints_path
| PathEmpty
| PathEpsilon
val normalize_path : hints_path -> hints_path
val path_matches : hints_path -> hints_path_atom list -> bool
val path_derivate : hints_path -> hints_path_atom -> hints_path
val pp_hints_path : hints_path -> Pp.std_ppcmds
module Hint_db :
sig
type t
val empty : transparent_state -> bool -> t
val find : global_reference -> t -> search_entry
val map_none : t -> pri_auto_tactic list
(** All hints associated to the reference *)
val map_all : global_reference -> t -> pri_auto_tactic list
(** All hints associated to the reference, respecting modes if evars appear in the
arguments, _not_ using the discrimination net. *)
val map_existential : (global_reference * constr array) -> constr -> t -> pri_auto_tactic list
(** All hints associated to the reference, respecting modes if evars appear in the
arguments and using the discrimination net. *)
val map_eauto : (global_reference * constr array) -> constr -> t -> pri_auto_tactic list
(** All hints associated to the reference, respecting modes if evars appear in the
arguments. *)
val map_auto : (global_reference * constr array) -> constr -> t -> pri_auto_tactic list
val add_one : hint_entry -> t -> t
val add_list : (hint_entry) list -> t -> t
val remove_one : global_reference -> t -> t
val remove_list : global_reference list -> t -> t
val iter : (global_reference option -> bool array list -> pri_auto_tactic list -> unit) -> t -> unit
val use_dn : t -> bool
val transparent_state : t -> transparent_state
val set_transparent_state : t -> transparent_state -> t
val add_cut : hints_path -> t -> t
val cut : t -> hints_path
val unfolds : t -> Id.Set.t * Cset.t
end
type hint_db_name = string
type hint_db = Hint_db.t
type hnf = bool
type hint_term =
| IsGlobRef of global_reference
| IsConstr of constr * Univ.universe_context_set
type hints_entry =
| HintsResolveEntry of (int option * polymorphic * hnf * hints_path_atom *
hint_term) list
| HintsImmediateEntry of (hints_path_atom * polymorphic * hint_term) list
| HintsCutEntry of hints_path
| HintsUnfoldEntry of evaluable_global_reference list
| HintsTransparencyEntry of evaluable_global_reference list * bool
| HintsModeEntry of global_reference * bool list
| HintsExternEntry of
int * (patvar list * constr_pattern) option * Tacexpr.glob_tactic_expr
val searchtable_map : hint_db_name -> hint_db
val searchtable_add : (hint_db_name * hint_db) -> unit
(** [create_hint_db local name st use_dn].
[st] is a transparency state for unification using this db
[use_dn] switches the use of the discrimination net for all hints
and patterns. *)
val create_hint_db : bool -> hint_db_name -> transparent_state -> bool -> unit
val remove_hints : bool -> hint_db_name list -> global_reference list -> unit
val current_db_names : unit -> String.Set.t
val current_pure_db : unit -> hint_db list
val interp_hints : polymorphic -> hints_expr -> hints_entry
val add_hints : locality_flag -> hint_db_name list -> hints_entry -> unit
val prepare_hint : bool (* Check no remaining evars *) -> env -> evar_map ->
open_constr -> hint_term
(** [make_exact_entry pri (c, ctyp)].
[c] is the term given as an exact proof to solve the goal;
[ctyp] is the type of [c]. *)
val make_exact_entry : env -> evar_map -> int option -> polymorphic -> ?name:hints_path_atom ->
(constr * types * Univ.universe_context_set) -> hint_entry
(** [make_apply_entry (eapply,hnf,verbose) pri (c,cty)].
[eapply] is true if this hint will be used only with EApply;
[hnf] should be true if we should expand the head of cty before searching for
products;
[c] is the term given as an exact proof to solve the goal;
[cty] is the type of [c]. *)
val make_apply_entry :
env -> evar_map -> bool * bool * bool -> int option -> polymorphic -> ?name:hints_path_atom ->
(constr * types * Univ.universe_context_set) -> hint_entry
(** A constr which is Hint'ed will be:
- (1) used as an Exact, if it does not start with a product
- (2) used as an Apply, if its HNF starts with a product, and
has no missing arguments.
- (3) used as an EApply, if its HNF starts with a product, and
has missing arguments. *)
val make_resolves :
env -> evar_map -> bool * bool * bool -> int option -> polymorphic -> ?name:hints_path_atom ->
hint_term -> hint_entry list
(** [make_resolve_hyp hname htyp].
used to add an hypothesis to the local hint database;
Never raises a user exception;
If the hyp cannot be used as a Hint, the empty list is returned. *)
val make_resolve_hyp :
env -> evar_map -> named_declaration -> hint_entry list
(** [make_extern pri pattern tactic_expr] *)
val make_extern :
int -> constr_pattern option -> Tacexpr.glob_tactic_expr
-> hint_entry
val extern_intern_tac :
(patvar list -> Tacexpr.raw_tactic_expr -> Tacexpr.glob_tactic_expr) Hook.t
(** Create a Hint database from the pairs (name, constr).
Useful to take the current goal hypotheses as hints;
Boolean tells if lemmas with evars are allowed *)
val make_local_hint_db : env -> evar_map -> ?ts:transparent_state -> bool -> open_constr list -> hint_db
val make_db_list : hint_db_name list -> hint_db list
(** Initially created hint databases, for typeclasses and rewrite *)
val typeclasses_db : hint_db_name
val rewrite_db : hint_db_name
(** Printing hints *)
val pr_searchtable : unit -> std_ppcmds
val pr_applicable_hint : unit -> std_ppcmds
val pr_hint_ref : global_reference -> std_ppcmds
val pr_hint_db_by_name : hint_db_name -> std_ppcmds
val pr_hint_db : Hint_db.t -> std_ppcmds
val pr_autotactic : (constr * 'a) auto_tactic -> Pp.std_ppcmds
(** Hook for changing the initialization of auto *)
val add_hints_init : (unit -> unit) -> unit
|
