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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 Classops
open Declare
open Libnames
open Decl_kinds
open Nametab
(*i*)
(* Classes and coercions. *)
(* [try_add_new_coercion_with_target ref s src tg] declares [ref] as a coercion
from [src] to [tg] *)
val try_add_new_coercion_with_target : global_reference -> strength ->
source:cl_typ -> target:cl_typ -> unit
(* [try_add_new_coercion ref s] declares [ref], assumed to be of type
[(x1:T1)...(xn:Tn)src->tg], as a coercion from [src] to [tg] *)
val try_add_new_coercion : global_reference -> strength -> unit
(* [try_add_new_coercion_subclass cst s] expects that [cst] denotes a
transparent constant which unfolds to some class [tg]; it declares
an identity coercion from [cst] to [tg], named something like
["Id_cst_tg"] *)
val try_add_new_coercion_subclass : cl_typ -> strength -> unit
(* [try_add_new_coercion_with_source ref s src] declares [ref] as a coercion
from [src] to [tg] where the target is inferred from the type of [ref] *)
val try_add_new_coercion_with_source : global_reference -> strength ->
source:cl_typ -> unit
(* [try_add_new_identity_coercion id s src tg] enriches the
environment with a new definition of name [id] declared as an
identity coercion from [src] to [tg] *)
val try_add_new_identity_coercion : identifier -> strength ->
source:cl_typ -> target:cl_typ -> unit
val add_coercion_hook : Tacexpr.declaration_hook
val add_subclass_hook : Tacexpr.declaration_hook
(* [try_add_new_class ref] declares [ref] as a new class; usually,
this is done implicitely by [try_add_new_coercion]'s functions *)
val try_add_new_class : global_reference -> strength -> unit
(*s This is used for the discharge *)
type coercion_entry
val add_new_coercion : coercion_entry -> unit
val process_class :
dir_path -> identifier list ->
(cl_typ * cl_info_typ) -> (cl_typ * cl_info_typ)
val process_coercion :
dir_path -> identifier list -> coercion -> coercion_entry
val class_of_ref : global_reference -> cl_typ
|
