blob: 3b255a4404ce1c2a3fd4a239d978d9582361c0c3 (
plain)
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
153
154
155
156
157
|
(***********************************************************************)
(* 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*)
(*s Target language for extraction: a core ML called MiniML. *)
open Pp
open Util
open Names
open Libnames
(* The [signature] type is used to know how many arguments a CIC
object expects, and what these arguments will become in the ML
object. *)
(* Convention: outmost lambda/product gives the head of the list,
and [true] means that the argument is to be kept. *)
type signature = bool list
(*s ML type expressions. *)
type ml_type =
| Tarr of ml_type * ml_type
| Tglob of global_reference * ml_type list
| Tvar of int
| Tvar' of int (* same as Tvar, used to avoid clash *)
| Tmeta of ml_meta (* used during ML type reconstruction *)
| Tdummy
| Tunknown
| Tcustom of string
and ml_meta = { id : int; mutable contents : ml_type option }
(* ML type schema.
The integer is the number of variable in the schema. *)
type ml_schema = int * ml_type
(*s ML inductive types. *)
type inductive_info = Record | Singleton | Coinductive | Standard
(* A [ml_ind_packet] is the miniml counterpart of a [one_inductive_body].
If the inductive is logical ([ip_logical = false]), then all other fields
are unused. Otherwise,
[ip_sign] is a signature concerning the arguments of the inductive,
[ip_vars] contains the names of the type variables surviving in ML,
[ip_types] contains the ML types of all constructors.
*)
type ml_ind_packet = {
ip_typename : identifier;
ip_consnames : identifier array;
ip_logical : bool;
ip_sign : signature;
ip_vars : identifier list;
ip_types : (ml_type list) array }
(* [ip_nparams] contains the number of parameters. *)
type ml_ind = {
ind_info : inductive_info;
ind_nparams : int;
ind_packets : ml_ind_packet array }
(*s ML terms. *)
type ml_ast =
| MLrel of int
| MLapp of ml_ast * ml_ast list
| MLlam of identifier * ml_ast
| MLletin of identifier * ml_ast * ml_ast
| MLglob of global_reference
| MLcons of global_reference * ml_ast list
| MLcase of ml_ast * (global_reference * identifier list * ml_ast) array
| MLfix of int * identifier array * ml_ast array
| MLexn of string
| MLdummy
| MLcast of ml_ast * ml_type
| MLmagic of ml_ast
(*s ML declarations. *)
type ml_decl =
| Dind of kernel_name * ml_ind
| Dtype of global_reference * identifier list * ml_type
| Dterm of global_reference * ml_ast * ml_type
| Dfix of global_reference array * ml_ast array * ml_type array
type ml_spec =
| Sind of kernel_name * ml_ind
| Stype of global_reference * identifier list * ml_type option
| Sval of global_reference * ml_type
type ml_specif =
| Spec of ml_spec
| Smodule of ml_module_type
| Smodtype of ml_module_type
and ml_module_sig = (label * ml_specif) list
and ml_module_type =
| MTident of kernel_name
| MTfunsig of mod_bound_id * ml_module_type * ml_module_type
| MTsig of mod_self_id * ml_module_sig
and ml_module_expr =
| MEident of module_path
| MEfunctor of mod_bound_id * ml_module_type * ml_module_expr
| MEstruct of mod_self_id * ml_module_structure
| MEapply of ml_module_expr * ml_module_expr
and ml_structure_elem =
| SEdecl of ml_decl
| SEmodule of ml_module (* pourquoi pas plutot ml_module_expr *)
| SEmodtype of ml_module_type
and ml_module_structure = (label * ml_structure_elem) list
and ml_module =
{ ml_mod_expr : ml_module_expr option;
ml_mod_type : ml_module_type;
ml_mod_equiv : module_path option }
type ml_structure = (module_path * ml_module_structure) list
type ml_signature = (module_path * ml_module_sig) list
(*s Pretty-printing of MiniML in a given concrete syntax is parameterized
by a function [pp_global] that pretty-prints global references.
The resulting pretty-printer is a module of type [Mlpp] providing
functions to print types, terms and declarations. *)
module type Mlpp_param = sig
val globals : unit -> Idset.t
val pp_global : module_path -> global_reference -> std_ppcmds
val pp_long_module : module_path -> module_path -> std_ppcmds
val pp_short_module : identifier -> std_ppcmds
end
module type Mlpp = sig
val pp_decl : module_path -> ml_decl -> std_ppcmds
val pp_struct : ml_structure -> std_ppcmds
val pp_signature : ml_signature -> std_ppcmds
end
type extraction_params =
{ modular : bool;
mod_name : identifier;
to_appear : global_reference list }
|