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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 Environ
open Evd
open Names
open Libnames
open Term
open Util
open Tacexpr
open Rawterm
open Genarg
(*i*)
(* This module defines the structure of proof tree and the tactic type. So, it
is used by [Proof_tree] and [Refiner] *)
type pf_status =
| Complete_proof
| Incomplete_proof
type prim_rule =
| Intro of identifier
| Intro_replacing of identifier
| Cut of bool * identifier * types
| FixRule of identifier * int * (identifier * int * constr) list
| Cofix of identifier * (identifier * constr) list
| Refine of constr
| Convert_concl of types
| Convert_hyp of named_declaration
| Thin of identifier list
| ThinBody of identifier list
| Move of bool * identifier * identifier
| Rename of identifier * identifier
(* The type [goal sigma] is the type of subgoal. It has the following form
\begin{verbatim}
it = { evar_concl = [the conclusion of the subgoal]
evar_hyps = [the hypotheses of the subgoal]
evar_body = Evar_Empty;
evar_info = { pgm : [The Realizer pgm if any]
lc : [Set of evar num occurring in subgoal] }}
sigma = { stamp = [an int characterizing the ed field, for quick compare]
ed : [A set of existential variables depending in the subgoal]
number of first evar,
it = { evar_concl = [the type of first evar]
evar_hyps = [the context of the evar]
evar_body = [the body of the Evar if any]
evar_info = { pgm : [Useless ??]
lc : [Set of evars occurring
in the type of evar] } };
...
number of last evar,
it = { evar_concl = [the type of evar]
evar_hyps = [the context of the evar]
evar_body = [the body of the Evar if any]
evar_info = { pgm : [Useless ??]
lc : [Set of evars occurring
in the type of evar] } } }
}
\end{verbatim}
*)
(* The type constructor ['a sigma] adds an evar map to an object of
type ['a] (see below the form of a [goal sigma] *)
type 'a sigma = {
it : 'a ;
sigma : evar_map}
(*s Proof trees.
[ref] = [None] if the goal has still to be proved,
and [Some (r,l)] if the rule [r] was applied to the goal
and gave [l] as subproofs to be completed.
if [ref = (Some(Tactic (t,p),l))] then [p] is the proof
that the goal can be proven if the goals in [l] are solved. *)
type proof_tree = {
status : pf_status;
goal : goal;
ref : (rule * proof_tree list) option }
and rule =
| Prim of prim_rule
| Tactic of tactic_expr * proof_tree
| Change_evars
and goal = evar_info
and tactic = goal sigma -> (goal list sigma * validation)
and validation = (proof_tree list -> proof_tree)
and tactic_expr =
(constr,
Closure.evaluable_global_reference,
inductive or_metanum,
identifier)
Tacexpr.gen_tactic_expr
and atomic_tactic_expr =
(constr,
Closure.evaluable_global_reference,
inductive or_metanum,
identifier)
Tacexpr.gen_atomic_tactic_expr
and tactic_arg =
(constr,
Closure.evaluable_global_reference,
inductive or_metanum,
identifier)
Tacexpr.gen_tactic_arg
type hyp_location = identifier Tacexpr.raw_hyp_location
type open_generic_argument =
(constr,raw_tactic_expr) generic_argument
type closed_generic_argument =
(constr,raw_tactic_expr) generic_argument
type 'a closed_abstract_argument_type =
('a,constr,raw_tactic_expr) abstract_argument_type
type declaration_hook = Decl_kinds.strength -> global_reference -> unit
|
