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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) *)
(************************************************************************)
(** This module implements the abstract interface to goals. Most of the code
here is useless and should be eventually removed. Consider using
{!Proofview.Goal} instead. *)
type goal = Evar.t
(* Gives a unique identifier to each goal. The identifier is
guaranteed to contain no space. *)
val uid : goal -> string
(* Debugging help *)
val pr_goal : goal -> Pp.t
(* Layer to implement v8.2 tactic engine ontop of the new architecture.
Types are different from what they used to be due to a change of the
internal types. *)
module V82 : sig
(* Old style env primitive *)
val env : Evd.evar_map -> goal -> Environ.env
(* Old style hyps primitive *)
val hyps : Evd.evar_map -> goal -> Environ.named_context_val
(* same as [hyps], but ensures that existential variables are
normalised. *)
val nf_hyps : Evd.evar_map -> goal -> Environ.named_context_val
(* Access to ".evar_concl" *)
val concl : Evd.evar_map -> goal -> EConstr.constr
(* Access to ".evar_extra" *)
val extra : Evd.evar_map -> goal -> Evd.Store.t
(* Old style mk_goal primitive, returns a new goal with corresponding
hypotheses and conclusion, together with a term which is precisely
the evar corresponding to the goal, and an updated evar_map. *)
val mk_goal : Evd.evar_map ->
Environ.named_context_val ->
EConstr.constr ->
Evd.Store.t ->
goal * EConstr.constr * Evd.evar_map
(* Instantiates a goal with an open term *)
val partial_solution : Evd.evar_map -> goal -> EConstr.constr -> Evd.evar_map
(* Instantiates a goal with an open term, reusing name of goal for
second goal *)
val partial_solution_to : Evd.evar_map -> goal -> goal -> EConstr.constr -> Evd.evar_map
(* Principal part of the progress tactical *)
val progress : goal list Evd.sigma -> goal Evd.sigma -> bool
(* Principal part of tclNOTSAMEGOAL *)
val same_goal : Evd.evar_map -> goal -> Evd.evar_map -> goal -> bool
(* Used by the compatibility layer and typeclasses *)
val nf_evar : Evd.evar_map -> goal -> goal * Evd.evar_map
(* Goal represented as a type, doesn't take into account section variables *)
val abstract_type : Evd.evar_map -> goal -> EConstr.types
end
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