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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(** Lib: record of operations, backtrack, low-level sections *)
(** This module provides a general mechanism to keep a trace of all operations
and to backtrack (undo) those operations. It provides also the section
mechanism (at a low level; discharge is not known at this step). *)
type is_type = bool (* Module Type or just Module *)
type export = bool option (* None for a Module Type *)
type node =
| Leaf of Libobject.obj
| CompilingLibrary of Libnames.object_prefix
| OpenedModule of is_type * export * Libnames.object_prefix * Summary.frozen
| ClosedModule of library_segment
| OpenedSection of Libnames.object_prefix * Summary.frozen
| ClosedSection of library_segment
| FrozenState of Summary.frozen
and library_segment = (Libnames.object_name * node) list
type lib_objects = (Names.identifier * Libobject.obj) list
(** {6 Object iteration functions. } *)
val open_objects : int -> Libnames.object_prefix -> lib_objects -> unit
val load_objects : int -> Libnames.object_prefix -> lib_objects -> unit
val subst_objects : Mod_subst.substitution -> lib_objects -> lib_objects
(*val load_and_subst_objects : int -> Libnames.object_prefix -> Mod_subst.substitution -> lib_objects -> lib_objects*)
(** [classify_segment seg] verifies that there are no OpenedThings,
clears ClosedSections and FrozenStates and divides Leafs according
to their answers to the [classify_object] function in three groups:
[Substitute], [Keep], [Anticipate] respectively. The order of each
returned list is the same as in the input list. *)
val classify_segment :
library_segment -> lib_objects * lib_objects * Libobject.obj list
(** [segment_of_objects prefix objs] forms a list of Leafs *)
val segment_of_objects :
Libnames.object_prefix -> lib_objects -> library_segment
(** {6 ... } *)
(** Adding operations (which call the [cache] method, and getting the
current list of operations (most recent ones coming first). *)
val add_leaf : Names.identifier -> Libobject.obj -> Libnames.object_name
val add_anonymous_leaf : Libobject.obj -> unit
(** this operation adds all objects with the same name and calls [load_object]
for each of them *)
val add_leaves : Names.identifier -> Libobject.obj list -> Libnames.object_name
val add_frozen_state : unit -> unit
(** {6 ... } *)
(** The function [contents_after] returns the current library segment,
starting from a given section path. If not given, the entire segment
is returned. *)
val contents_after : Libnames.object_name option -> library_segment
(** {6 Functions relative to current path } *)
(** User-side names *)
val cwd : unit -> Names.dir_path
val cwd_except_section : unit -> Names.dir_path
val current_dirpath : bool -> Names.dir_path (* false = except sections *)
val make_path : Names.identifier -> Libnames.full_path
val make_path_except_section : Names.identifier -> Libnames.full_path
val path_of_include : unit -> Libnames.full_path
(** Kernel-side names *)
val current_prefix : unit -> Names.module_path * Names.dir_path
val make_kn : Names.identifier -> Names.kernel_name
val make_con : Names.identifier -> Names.constant
(** Are we inside an opened section *)
val sections_are_opened : unit -> bool
val sections_depth : unit -> int
(** Are we inside an opened module type *)
val is_module_or_modtype : unit -> bool
val is_modtype : unit -> bool
val is_module : unit -> bool
val current_mod_id : unit -> Names.module_ident
(** Returns the opening node of a given name *)
val find_opening_node : Names.identifier -> node
(** {6 Modules and module types } *)
val start_module :
export -> Names.module_ident -> Names.module_path ->
Summary.frozen -> Libnames.object_prefix
val start_modtype :
Names.module_ident -> Names.module_path ->
Summary.frozen -> Libnames.object_prefix
val end_module :
unit ->
Libnames.object_name * Libnames.object_prefix *
Summary.frozen * library_segment
val end_modtype :
unit ->
Libnames.object_name * Libnames.object_prefix *
Summary.frozen * library_segment
(** [Lib.add_frozen_state] must be called after each of the above functions *)
(** {6 Compilation units } *)
val start_compilation : Names.dir_path -> Names.module_path -> unit
val end_compilation : Names.dir_path -> Libnames.object_prefix * library_segment
(** The function [library_dp] returns the [dir_path] of the current
compiling library (or [default_library]) *)
val library_dp : unit -> Names.dir_path
(** Extract the library part of a name even if in a section *)
val dp_of_mp : Names.module_path -> Names.dir_path
val split_mp : Names.module_path -> Names.dir_path * Names.dir_path
val split_modpath : Names.module_path -> Names.dir_path * Names.identifier list
val library_part : Libnames.global_reference -> Names.dir_path
val remove_section_part : Libnames.global_reference -> Names.dir_path
(** {6 Sections } *)
val open_section : Names.identifier -> unit
val close_section : unit -> unit
(** {6 Backtracking } *)
(** NB: The next commands are low-level ones, do not use them directly
otherwise the command history stack in [Backtrack] will be out-of-sync.
Also note that [reset_initial] is now [reset_label first_command_label] *)
(** Adds a "dummy" entry in lib_stk with a unique new label number. *)
val mark_end_of_command : unit -> unit
(** Returns the current label number *)
val current_command_label : unit -> int
(** The first label number *)
val first_command_label : int
(** [reset_label n] resets [lib_stk] to the label n registered by
[mark_end_of_command()]. It forgets anything registered after
this label. The label should be strictly in the past. *)
val reset_label : int -> unit
(** search the label registered immediately before adding some definition *)
val label_before_name : Names.identifier Util.located -> int
(** {6 We can get and set the state of the operations (used in [States]). } *)
type frozen
val freeze : unit -> frozen
val unfreeze : frozen -> unit
val init : unit -> unit
(** XML output hooks *)
val set_xml_open_section : (Names.identifier -> unit) -> unit
val set_xml_close_section : (Names.identifier -> unit) -> unit
type binding_kind = Explicit | Implicit
(** {6 Section management for discharge } *)
type variable_info = Names.identifier * binding_kind * Term.constr option * Term.types
type variable_context = variable_info list
val instance_from_variable_context : variable_context -> Names.identifier array
val named_of_variable_context : variable_context -> Sign.named_context
val section_segment_of_constant : Names.constant -> variable_context
val section_segment_of_mutual_inductive: Names.mutual_inductive -> variable_context
val section_instance : Libnames.global_reference -> Names.identifier array
val is_in_section : Libnames.global_reference -> bool
val add_section_variable : Names.identifier -> binding_kind -> unit
val add_section_constant : Names.constant -> Sign.named_context -> unit
val add_section_kn : Names.mutual_inductive -> Sign.named_context -> unit
val replacement_context : unit ->
(Names.identifier array Names.Cmap.t * Names.identifier array Names.Mindmap.t)
(** {6 Discharge: decrease the section level if in the current section } *)
val discharge_kn : Names.mutual_inductive -> Names.mutual_inductive
val discharge_con : Names.constant -> Names.constant
val discharge_global : Libnames.global_reference -> Libnames.global_reference
val discharge_inductive : Names.inductive -> Names.inductive
|
