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(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(*i $Id: evarutil.mli,v 1.33.2.2 2004/07/16 19:30:44 herbelin Exp $ i*)
(*i*)
open Util
open Names
open Rawterm
open Term
open Sign
open Evd
open Environ
open Reductionops
(*i*)
(*s This modules provides useful functions for unification modulo evars *)
(* [whd_ise] raise [Uninstantiated_evar] if an evar remains uninstantiated; *)
(* *[whd_evar]* and *[nf_evar]* leave uninstantiated evar as is *)
val nf_evar : evar_map -> constr -> constr
val j_nf_evar : evar_map -> unsafe_judgment -> unsafe_judgment
val jl_nf_evar :
evar_map -> unsafe_judgment list -> unsafe_judgment list
val jv_nf_evar :
evar_map -> unsafe_judgment array -> unsafe_judgment array
val tj_nf_evar :
evar_map -> unsafe_type_judgment -> unsafe_type_judgment
(* Replacing all evars *)
exception Uninstantiated_evar of existential_key
val whd_ise : evar_map -> constr -> constr
val whd_castappevar : evar_map -> constr -> constr
(* Creating new existential variables *)
val new_evar : unit -> evar
val new_evar_in_sign : env -> constr
val evar_env : evar_info -> env
type evar_defs
val evars_of : evar_defs -> evar_map
val create_evar_defs : evar_map -> evar_defs
val evars_reset_evd : evar_map -> evar_defs -> unit
val evar_source : existential_key -> evar_defs -> loc * hole_kind
type evar_constraint = conv_pb * constr * constr
val add_conv_pb : evar_defs -> evar_constraint -> unit
val is_defined_evar : evar_defs -> existential -> bool
val ise_try : evar_defs -> (unit -> bool) list -> bool
val ise_undefined : evar_defs -> constr -> bool
val has_undefined_isevars : evar_defs -> constr -> bool
val new_isevar_sign :
Environ.env -> Evd.evar_map -> Term.constr -> Term.constr list ->
Evd.evar_map * Term.constr
val new_isevar : evar_defs -> env -> loc * hole_kind -> constr -> constr
val is_eliminator : constr -> bool
val head_is_embedded_evar : evar_defs -> constr -> bool
val solve_simple_eqn :
(env -> evar_defs -> conv_pb -> constr -> constr -> bool)
-> env -> evar_defs -> conv_pb * existential * constr -> bool
val define_evar_as_arrow : evar_defs -> existential -> types
val define_evar_as_sort : evar_defs -> existential -> sorts
(* Value/Type constraints *)
val new_Type_sort : unit -> sorts
val new_Type : unit -> constr
val judge_of_new_Type : unit -> unsafe_judgment
val refresh_universes : types -> types
type type_constraint = constr option
type val_constraint = constr option
val empty_tycon : type_constraint
val mk_tycon : constr -> type_constraint
val empty_valcon : val_constraint
val mk_valcon : constr -> val_constraint
val split_tycon :
loc -> env -> evar_defs -> type_constraint ->
name * type_constraint * type_constraint
val valcon_of_tycon : type_constraint -> val_constraint
val lift_tycon : type_constraint -> type_constraint
|
