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(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2012 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
open Pp
open Names
open Libnames
open Globnames
(** This module contains the tables for globalization. *)
(** These globalization tables associate internal object references to
qualified names (qualid). There are three classes of names:
- 1a) internal kernel names: [kernel_name], [constant], [inductive],
[module_path], [DirPath.t]
- 1b) other internal names: [global_reference], [syndef_name],
[extended_global_reference], [global_dir_reference], ...
- 2) full, non ambiguous user names: [full_path]
- 3) non necessarily full, possibly ambiguous user names: [reference]
and [qualid]
*)
(** Most functions in this module fall into one of the following categories:
{ul {- [push : visibility -> full_user_name -> object_reference -> unit]
Registers the [object_reference] to be referred to by the
[full_user_name] (and its suffixes according to [visibility]).
[full_user_name] can either be a [full_path] or a [DirPath.t].
}
{- [exists : full_user_name -> bool]
Is the [full_user_name] already atributed as an absolute user name
of some object?
}
{- [locate : qualid -> object_reference]
Finds the object referred to by [qualid] or raises [Not_found]
}
{- [full_name : qualid -> full_user_name]
Finds the full user name referred to by [qualid] or raises [Not_found]
}
{- [shortest_qualid_of : object_reference -> user_name]
The [user_name] can be for example the shortest non ambiguous [qualid] or
the [full_user_name] or [Id.t]. Such a function can also have a
local context argument.}}
*)
exception GlobalizationError of qualid
exception GlobalizationConstantError of qualid
(** Raises a globalization error *)
val error_global_not_found_loc : Loc.t -> qualid -> 'a
val error_global_not_found : qualid -> 'a
val error_global_constant_not_found_loc : Loc.t -> qualid -> 'a
(** {6 Register visibility of things } *)
(** The visibility can be registered either
- for all suffixes not shorter then a given int -- when the
object is loaded inside a module -- or
- for a precise suffix, when the module containing (the module
containing ...) the object is opened (imported)
*)
type visibility = Until of int | Exactly of int
val push : visibility -> full_path -> global_reference -> unit
val push_modtype : visibility -> full_path -> module_path -> unit
val push_dir : visibility -> DirPath.t -> global_dir_reference -> unit
val push_syndef : visibility -> full_path -> syndef_name -> unit
type ltac_constant = kernel_name
val push_tactic : visibility -> full_path -> ltac_constant -> unit
(** {6 The following functions perform globalization of qualified names } *)
(** These functions globalize a (partially) qualified name or fail with
[Not_found] *)
val locate : qualid -> global_reference
val locate_extended : qualid -> extended_global_reference
val locate_constant : qualid -> constant
val locate_syndef : qualid -> syndef_name
val locate_modtype : qualid -> module_path
val locate_dir : qualid -> global_dir_reference
val locate_module : qualid -> module_path
val locate_section : qualid -> DirPath.t
val locate_tactic : qualid -> ltac_constant
(** These functions globalize user-level references into global
references, like [locate] and co, but raise a nice error message
in case of failure *)
val global : reference -> global_reference
val global_inductive : reference -> inductive
(** These functions locate all global references with a given suffix;
if [qualid] is valid as such, it comes first in the list *)
val locate_all : qualid -> global_reference list
val locate_extended_all : qualid -> extended_global_reference list
(** Mapping a full path to a global reference *)
val global_of_path : full_path -> global_reference
val extended_global_of_path : full_path -> extended_global_reference
(** {6 These functions tell if the given absolute name is already taken } *)
val exists_cci : full_path -> bool
val exists_modtype : full_path -> bool
val exists_dir : DirPath.t -> bool
val exists_section : DirPath.t -> bool (** deprecated synonym of [exists_dir] *)
val exists_module : DirPath.t -> bool (** deprecated synonym of [exists_dir] *)
(** {6 These functions locate qualids into full user names } *)
val full_name_cci : qualid -> full_path
val full_name_modtype : qualid -> full_path
val full_name_module : qualid -> DirPath.t
(** {6 Reverse lookup }
Finding user names corresponding to the given
internal name *)
(** Returns the full path bound to a global reference or syntactic
definition, and the (full) dirpath associated to a module path *)
val path_of_syndef : syndef_name -> full_path
val path_of_global : global_reference -> full_path
val dirpath_of_module : module_path -> DirPath.t
val path_of_tactic : ltac_constant -> full_path
(** Returns in particular the dirpath or the basename of the full path
associated to global reference *)
val dirpath_of_global : global_reference -> DirPath.t
val basename_of_global : global_reference -> Id.t
(** Printing of global references using names as short as possible.
@raise Not_found when the reference is not in the global tables. *)
val pr_global_env : Id.Set.t -> global_reference -> std_ppcmds
(** The [shortest_qualid] functions given an object with [user_name]
Coq.A.B.x, try to find the shortest among x, B.x, A.B.x and
Coq.A.B.x that denotes the same object.
@raise Not_found for unknown objects. *)
val shortest_qualid_of_global : Id.Set.t -> global_reference -> qualid
val shortest_qualid_of_syndef : Id.Set.t -> syndef_name -> qualid
val shortest_qualid_of_modtype : module_path -> qualid
val shortest_qualid_of_module : module_path -> qualid
val shortest_qualid_of_tactic : ltac_constant -> qualid
(** Deprecated synonyms *)
val extended_locate : qualid -> extended_global_reference (*= locate_extended *)
val absolute_reference : full_path -> global_reference (** = global_of_path *)
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