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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
(** Vernacular Extension data *)
(* A vernac classifier provides information about the exectuion of a
command:
- vernac_when: encodes if the vernac may alter the parser [thus
forcing immediate execution], or if indeed it is pure and parsing
can continue without its execution.
- vernac_type: if it is starts, ends, continues a proof or
alters the global state or is a control command like BackTo or is
a query like Check.
The classification works on the assumption that we have 3 states:
parsing, execution (global environment, etc...), and proof
state. For example, commands that only alter the proof state are
considered safe to delegate to a worker.
*)
type vernac_keep_as = VtKeepAxiom | VtKeepDefined | VtKeepOpaque
type vernac_qed_type = VtKeep of vernac_keep_as | VtDrop
type vernac_type =
(* Start of a proof *)
| VtStartProof of vernac_start
(* Command altering the global state, bad for parallel
processing. *)
| VtSideff of vernac_sideff_type
(* End of a proof *)
| VtQed of vernac_qed_type
(* A proof step *)
| VtProofStep of {
parallel : [ `Yes of solving_tac * anon_abstracting_tac | `No ];
proof_block_detection : proof_block_name option
}
(* Queries are commands assumed to be "pure", that is to say, they
don't modify the interpretation state. *)
| VtQuery
(* Commands that change the current proof mode *)
| VtProofMode of string
(* To be removed *)
| VtMeta
| VtUnknown
and vernac_start = opacity_guarantee * Names.Id.t list
and vernac_sideff_type = Names.Id.t list
and opacity_guarantee =
| GuaranteesOpacity (** Only generates opaque terms at [Qed] *)
| Doesn'tGuaranteeOpacity (** May generate transparent terms even with [Qed].*)
and solving_tac = bool (** a terminator *)
and anon_abstracting_tac = bool (** abstracting anonymously its result *)
and proof_block_name = string (** open type of delimiters *)
type vernac_when =
| VtNow
| VtLater
type vernac_classification = vernac_type * vernac_when
(** Interpretation of extended vernac phrases. *)
type 'a vernac_command = 'a -> atts:Attributes.vernac_flags -> st:Vernacstate.t -> Vernacstate.t
type plugin_args = Genarg.raw_generic_argument list
val call : Vernacexpr.extend_name -> plugin_args -> atts:Attributes.vernac_flags -> st:Vernacstate.t -> Vernacstate.t
(** {5 VERNAC EXTEND} *)
type classifier = Genarg.raw_generic_argument list -> vernac_classification
type (_, _) ty_sig =
| TyNil : (atts:Attributes.vernac_flags -> st:Vernacstate.t -> Vernacstate.t, vernac_classification) ty_sig
| TyTerminal : string * ('r, 's) ty_sig -> ('r, 's) ty_sig
| TyNonTerminal :
('a, 'b, 'c) Extend.ty_user_symbol * ('r, 's) ty_sig ->
('a -> 'r, 'a -> 's) ty_sig
type ty_ml = TyML : bool (* deprecated *) * ('r, 's) ty_sig * 'r * 's option -> ty_ml
(** Wrapper to dynamically extend vernacular commands. *)
val vernac_extend :
command:string ->
?classifier:(string -> vernac_classification) ->
?entry:Vernacexpr.vernac_expr Pcoq.Entry.t ->
ty_ml list -> unit
(** {5 VERNAC ARGUMENT EXTEND} *)
type 'a argument_rule =
| Arg_alias of 'a Pcoq.Entry.t
(** This is used because CAMLP5 parser can be dumb about rule factorization,
which sometimes requires two entries to be the same. *)
| Arg_rules of 'a Extend.production_rule list
(** There is a discrepancy here as we use directly extension rules and thus
entries instead of ty_user_symbol and thus arguments as roots. *)
type 'a vernac_argument = {
arg_printer : Environ.env -> Evd.evar_map -> 'a -> Pp.t;
arg_parsing : 'a argument_rule;
}
val vernac_argument_extend : name:string -> 'a vernac_argument ->
('a, unit, unit) Genarg.genarg_type * 'a Pcoq.Entry.t
(** {5 STM classifiers} *)
val get_vernac_classifier : Vernacexpr.extend_name -> classifier
(** Standard constant classifiers *)
val classify_as_query : vernac_classification
val classify_as_sideeff : vernac_classification
val classify_as_proofstep : vernac_classification
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