1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2011 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(* $Id: btermdn.ml 14641 2011-11-06 11:59:10Z herbelin $ *)
open Term
open Names
open Termdn
open Pattern
open Libnames
(* Discrimination nets with bounded depth.
See the module dn.ml for further explanations.
Eduardo (5/8/97). *)
let dnet_depth = ref 8
module Make =
functor (Z : Map.OrderedType) ->
struct
module Term_dn = Termdn.Make(Z)
module X = struct
type t = constr_pattern*int
let compare = Pervasives.compare
end
module Y = struct
type t = Term_dn.term_label
let compare x y =
let make_name n =
match n with
| Term_dn.GRLabel(ConstRef con) ->
Term_dn.GRLabel(ConstRef(constant_of_kn(canonical_con con)))
| Term_dn.GRLabel(IndRef (kn,i)) ->
Term_dn.GRLabel(IndRef(mind_of_kn(canonical_mind kn),i))
| Term_dn.GRLabel(ConstructRef ((kn,i),j ))->
Term_dn.GRLabel(ConstructRef((mind_of_kn(canonical_mind kn),i),j))
| k -> k
in
Pervasives.compare (make_name x) (make_name y)
end
module Dn = Dn.Make(X)(Y)(Z)
type t = Dn.t
let create = Dn.create
let decomp =
let rec decrec acc c = match kind_of_term c with
| App (f,l) -> decrec (Array.fold_right (fun a l -> a::l) l acc) f
| Cast (c1,_,_) -> decrec acc c1
| _ -> (c,acc)
in
decrec []
let constr_val_discr t =
let c, l = decomp t in
match kind_of_term c with
| Ind ind_sp -> Dn.Label(Term_dn.GRLabel (IndRef ind_sp),l)
| Construct cstr_sp -> Dn.Label(Term_dn.GRLabel (ConstructRef cstr_sp),l)
| Var id -> Dn.Label(Term_dn.GRLabel (VarRef id),l)
| Const _ -> Dn.Everything
| _ -> Dn.Nothing
let constr_val_discr_st (idpred,cpred) t =
let c, l = decomp t in
match kind_of_term c with
| Const c -> if Cpred.mem c cpred then Dn.Everything else Dn.Label(Term_dn.GRLabel (ConstRef c),l)
| Ind ind_sp -> Dn.Label(Term_dn.GRLabel (IndRef ind_sp),l)
| Construct cstr_sp -> Dn.Label(Term_dn.GRLabel (ConstructRef cstr_sp),l)
| Var id when not (Idpred.mem id idpred) -> Dn.Label(Term_dn.GRLabel (VarRef id),l)
| Prod (n, d, c) -> Dn.Label(Term_dn.ProdLabel, [d; c])
| Lambda (n, d, c) -> Dn.Label(Term_dn.LambdaLabel, [d; c] @ l)
| Sort _ -> Dn.Label(Term_dn.SortLabel, [])
| Evar _ -> Dn.Everything
| _ -> Dn.Nothing
let bounded_constr_pat_discr_st st (t,depth) =
if depth = 0 then
None
else
match Term_dn.constr_pat_discr_st st t with
| None -> None
| Some (c,l) -> Some(c,List.map (fun c -> (c,depth-1)) l)
let bounded_constr_val_discr_st st (t,depth) =
if depth = 0 then
Dn.Nothing
else
match constr_val_discr_st st t with
| Dn.Label (c,l) -> Dn.Label(c,List.map (fun c -> (c,depth-1)) l)
| Dn.Nothing -> Dn.Nothing
| Dn.Everything -> Dn.Everything
let bounded_constr_pat_discr (t,depth) =
if depth = 0 then
None
else
match Term_dn.constr_pat_discr t with
| None -> None
| Some (c,l) -> Some(c,List.map (fun c -> (c,depth-1)) l)
let bounded_constr_val_discr (t,depth) =
if depth = 0 then
Dn.Nothing
else
match constr_val_discr t with
| Dn.Label (c,l) -> Dn.Label(c,List.map (fun c -> (c,depth-1)) l)
| Dn.Nothing -> Dn.Nothing
| Dn.Everything -> Dn.Everything
let add = function
| None ->
(fun dn (c,v) ->
Dn.add dn bounded_constr_pat_discr ((c,!dnet_depth),v))
| Some st ->
(fun dn (c,v) ->
Dn.add dn (bounded_constr_pat_discr_st st) ((c,!dnet_depth),v))
let rmv = function
| None ->
(fun dn (c,v) ->
Dn.rmv dn bounded_constr_pat_discr ((c,!dnet_depth),v))
| Some st ->
(fun dn (c,v) ->
Dn.rmv dn (bounded_constr_pat_discr_st st) ((c,!dnet_depth),v))
let lookup = function
| None ->
(fun dn t ->
List.map
(fun ((c,_),v) -> (c,v))
(Dn.lookup dn bounded_constr_val_discr (t,!dnet_depth)))
| Some st ->
(fun dn t ->
List.map
(fun ((c,_),v) -> (c,v))
(Dn.lookup dn (bounded_constr_val_discr_st st) (t,!dnet_depth)))
let app f dn = Dn.app (fun ((c,_),v) -> f(c,v)) dn
end
|