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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) *)
(************************************************************************)
(** Global proof state. A quite redundant wrapper on {!Proof_global}. *)
open Names
open Constr
open Environ
open Decl_kinds
(** {6 ... } *)
(** [start_proof s str env t hook tac] starts a proof of name [s] and
conclusion [t]; [hook] is optionally a function to be applied at
proof end (e.g. to declare the built constructions as a coercion
or a setoid morphism); init_tac is possibly a tactic to
systematically apply at initialization time (e.g. to start the
proof of mutually dependent theorems) *)
val start_proof :
Id.t -> ?pl:UState.universe_decl -> goal_kind -> Evd.evar_map -> named_context_val -> EConstr.constr ->
?init_tac:unit Proofview.tactic ->
Proof_global.proof_terminator -> unit
(** {6 ... } *)
(** [cook_proof opacity] turns the current proof (assumed completed) into
a constant with its name, kind and possible hook (see [start_proof]);
it fails if there is no current proof of if it is not completed;
it also tells if the guardness condition has to be inferred. *)
val cook_this_proof :
Proof_global.proof_object ->
(Id.t *
(Safe_typing.private_constants Entries.definition_entry * UState.t * goal_kind))
val cook_proof : unit ->
(Id.t *
(Safe_typing.private_constants Entries.definition_entry * UState.t * goal_kind))
(** {6 ... } *)
(** [get_goal_context n] returns the context of the [n]th subgoal of
the current focused proof or raises a [UserError] if there is no
focused proof or if there is no more subgoals *)
val get_goal_context : int -> Evd.evar_map * env
(** [get_current_goal_context ()] works as [get_goal_context 1] *)
val get_current_goal_context : unit -> Evd.evar_map * env
(** [get_current_context ()] returns the context of the
current focused goal. If there is no focused goal but there
is a proof in progress, it returns the corresponding evar_map.
If there is no pending proof then it returns the current global
environment and empty evar_map. *)
val get_current_context : unit -> Evd.evar_map * env
(** [current_proof_statement] *)
val current_proof_statement :
unit -> Id.t * goal_kind * EConstr.types
(** {6 ... } *)
(** [solve (SelectNth n) tac] applies tactic [tac] to the [n]th
subgoal of the current focused proof or raises a [UserError] if no
proof is focused or if there is no [n]th subgoal. [solve SelectAll
tac] applies [tac] to all subgoals. *)
val solve : ?with_end_tac:unit Proofview.tactic ->
Goal_select.t -> int option -> unit Proofview.tactic ->
Proof.t -> Proof.t * bool
(** [by tac] applies tactic [tac] to the 1st subgoal of the current
focused proof or raises a UserError if there is no focused proof or
if there is no more subgoals.
Returns [false] if an unsafe tactic has been used. *)
val by : unit Proofview.tactic -> bool
(** Option telling if unification heuristics should be used. *)
val use_unification_heuristics : unit -> bool
(** [instantiate_nth_evar_com n c] instantiate the [n]th undefined
existential variable of the current focused proof by [c] or raises a
UserError if no proof is focused or if there is no such [n]th
existential variable *)
val instantiate_nth_evar_com : int -> Constrexpr.constr_expr -> unit
(** [build_by_tactic typ tac] returns a term of type [typ] by calling
[tac]. The return boolean, if [false] indicates the use of an unsafe
tactic. *)
val build_constant_by_tactic :
Id.t -> UState.t -> named_context_val -> ?goal_kind:goal_kind ->
EConstr.types -> unit Proofview.tactic ->
Safe_typing.private_constants Entries.definition_entry * bool *
UState.t
val build_by_tactic : ?side_eff:bool -> env -> UState.t -> ?poly:polymorphic ->
EConstr.types -> unit Proofview.tactic ->
constr * bool * UState.t
val refine_by_tactic : env -> Evd.evar_map -> EConstr.types -> unit Proofview.tactic ->
constr * Evd.evar_map
(** A variant of the above function that handles open terms as well.
Caveat: all effects are purged in the returned term at the end, but other
evars solved by side-effects are NOT purged, so that unexpected failures may
occur. Ideally all code using this function should be rewritten in the
monad. *)
(** Declare the default tactic to fill implicit arguments *)
val declare_implicit_tactic : unit Proofview.tactic -> unit
(** To remove the default tactic *)
val clear_implicit_tactic : unit -> unit
(* Raise Exit if cannot solve *)
val solve_by_implicit_tactic : unit -> Pretyping.inference_hook option
|
