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(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
open Names
open Globnames
open Misctypes
(** The kinds of existential variable *)
(** Should the obligation be defined (opaque or transparent (default)) or
defined transparent and expanded in the term? *)
type obligation_definition_status = Define of bool | Expand
type matching_var_kind = FirstOrderPatVar of patvar | SecondOrderPatVar of patvar
type t =
| ImplicitArg of global_reference * (int * Id.t option)
* bool (** Force inference *)
| BinderType of Name.t
| NamedHole of Id.t (* coming from some ?[id] syntax *)
| QuestionMark of obligation_definition_status * Name.t
| CasesType of bool (* true = a subterm of the type *)
| InternalHole
| TomatchTypeParameter of inductive * int
| GoalEvar
| ImpossibleCase
| MatchingVar of matching_var_kind
| VarInstance of Id.t
| SubEvar of Constr.existential_key
|
