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(***********************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA-Rocquencourt & LRI-CNRS-Orsay *)
(* \VV/ *************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(***********************************************************************)
(*i $Id$ i*)
(*i*)
open Names
open Term
open Sign
open Environ
open Evd
open Proof_trees
open Proof_type
open Refiner
(*i*)
(* Refinement of existential variables. *)
val rc_of_pfsigma : proof_tree sigma -> readable_constraints
val rc_of_glsigma : goal sigma -> readable_constraints
(* a [walking_constraints] is a structure associated to a specific
goal; it collects all evars of which the goal depends.
It has the following structure:
[(identifying stamp, time stamp,
{ focus : set of evars among decls of which the goal depends;
hyps : context of the goal;
decls : a superset of evars of which the goal may depend })]
*)
type walking_constraints
type 'a result_w_tactic = walking_constraints -> walking_constraints * 'a
(* A [w_tactic] is a tactic which modifies the a set of evars of which
a goal depend, either by instantiating one, or by declaring a new
dependent goal *)
type w_tactic = walking_constraints -> walking_constraints
val local_Constraints :
local_constraints -> goal sigma -> goal list sigma * validation
val startWalk :
goal sigma -> walking_constraints * (walking_constraints -> tactic)
val walking_THEN : 'a result_w_tactic -> ('a -> tactic) -> tactic
val walking : w_tactic -> tactic
val w_Focusing_THEN :
evar -> 'a result_w_tactic -> ('a -> w_tactic) -> w_tactic
val w_Declare : evar -> types -> w_tactic
val w_Declare_At : evar -> evar -> types -> w_tactic
val w_Define : evar -> constr -> w_tactic
val w_Underlying : walking_constraints -> enamed_declarations
val w_env : walking_constraints -> env
val w_hyps : walking_constraints -> named_context
val w_whd : walking_constraints -> constr -> constr
val w_type_of : walking_constraints -> constr -> constr
val w_add_sign : (identifier * types) -> walking_constraints
-> walking_constraints
val w_IDTAC : w_tactic
val w_ORELSE : w_tactic -> w_tactic -> w_tactic
val ctxt_type_of : readable_constraints -> constr -> constr
val w_whd_betadeltaiota : walking_constraints -> constr -> constr
val w_hnf_constr : walking_constraints -> constr -> constr
val w_conv_x : walking_constraints -> constr -> constr -> bool
val w_const_value : walking_constraints -> constant -> constr
val w_defined_const : walking_constraints -> constant -> bool
val w_defined_evar : walking_constraints -> existential_key -> bool
val evars_of : readable_constraints -> constr -> local_constraints
val instantiate_pf : int -> constr -> pftreestate -> pftreestate
val instantiate_pf_com : int -> Coqast.t -> pftreestate -> pftreestate
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