-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathcudf_types.ml
204 lines (187 loc) · 7.26 KB
/
cudf_types.ml
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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
(*****************************************************************************)
(* libCUDF - CUDF (Common Upgrade Description Format) manipulation library *)
(* Copyright (C) 2009-2012 Stefano Zacchiroli <zack@upsilon.cc> *)
(* *)
(* This library is free software: you can redistribute it and/or modify *)
(* it under the terms of the GNU Lesser General Public License as *)
(* published by the Free Software Foundation, either version 3 of the *)
(* License, or (at your option) any later version. A special linking *)
(* exception to the GNU Lesser General Public License applies to this *)
(* library, see the COPYING file for more information. *)
(*****************************************************************************)
open ExtLib
open Printf
type version = int
type relop = [`Eq|`Neq|`Geq|`Gt|`Leq|`Lt]
type constr = (relop * version) option
type pkgname = string
type vpkg = pkgname * constr
type vpkglist = vpkg list
type vpkgformula = vpkg list list
type veqpkg = pkgname * ([`Eq] * version) option
type veqpkglist = veqpkg list
type enum_keep = [`Keep_version | `Keep_package | `Keep_feature | `Keep_none ]
type typ =
[ `Int | `Posint | `Nat | `Bool | `String | `Enum of string list
| `Pkgname | `Ident
| `Vpkg | `Vpkgformula | `Vpkglist | `Veqpkg | `Veqpkglist
| `Typedecl ]
type typedecl1 =
[ `Int of int option | `Posint of int option | `Nat of int option
| `Bool of bool option | `String of string option
| `Pkgname of string option | `Ident of string option
| `Enum of string list * string option | `Vpkg of vpkg option
| `Vpkgformula of vpkgformula option | `Vpkglist of vpkglist option
| `Veqpkg of veqpkg option | `Veqpkglist of veqpkglist option
| `Typedecl of typedecl option ]
and typedecl = (string * typedecl1) list
type typed_value =
[ `Int of int | `Posint of int | `Nat of int | `Bool of bool
| `String of string | `Pkgname of string | `Ident of string
| `Enum of string list * string | `Vpkg of vpkg
| `Vpkgformula of vpkgformula | `Vpkglist of vpkglist
| `Veqpkg of veqpkg | `Veqpkglist of veqpkglist
| `Typedecl of typedecl ]
type 'ty stanza = (string * 'ty) list
type loc = Lexing.position * Lexing.position
let dummy_loc: loc = Lexing.dummy_pos, Lexing.dummy_pos
let extend_loc (r1_start, _r1_end) (_r2_start, r2_end) = (r1_start, r2_end)
let loc_of_lexbuf b = (b.Lexing.lex_start_p, b.Lexing.lex_curr_p)
exception Parse_error_822 of string * loc (* <msg, loc> *)
exception Syntax_error of string * loc (* <msg, loc> *)
exception Type_error of typ * typed_value * loc (* <type, literal, loc> *)
let keep_enums = ["version"; "package"; "feature"; "none"]
let keep_type = `Enum keep_enums
let type_of_typedecl = function
| `Int _ -> `Int
| `Posint _ -> `Posint
| `Nat _ -> `Nat
| `Bool _ -> `Bool
| `String _ -> `String
| `Pkgname _ -> `Pkgname
| `Ident _ -> `Ident
| `Enum (enums, _) -> `Enum enums
| `Vpkg _ -> `Vpkg
| `Vpkgformula _ -> `Vpkgformula
| `Vpkglist _ -> `Vpkglist
| `Veqpkg _ -> `Veqpkg
| `Veqpkglist _ -> `Veqpkglist
| `Typedecl _ -> `Typedecl
let typedecl_of_type = function
| `Int -> `Int None
| `Posint -> `Posint None
| `Nat -> `Nat None
| `Bool -> `Bool None
| `String -> `String None
| `Pkgname -> `Pkgname None
| `Ident -> `Ident None
| `Enum enums -> `Enum (enums, None)
| `Vpkg -> `Vpkg None
| `Vpkgformula -> `Vpkgformula None
| `Vpkglist -> `Vpkglist None
| `Veqpkg -> `Veqpkg None
| `Veqpkglist -> `Veqpkglist None
| `Typedecl -> `Typedecl None
let typedecl_of_value = function
| `Int n -> `Int (Some n)
| `Posint n -> `Posint (Some n)
| `Nat n -> `Nat (Some n)
| `Bool b -> `Bool (Some b)
| `String s -> `String (Some s)
| `Pkgname s -> `Pkgname (Some s)
| `Ident s -> `Ident (Some s)
| `Enum (enums, s) -> `Enum (enums, Some s)
| `Vpkg p -> `Vpkg (Some p)
| `Vpkgformula f -> `Vpkgformula (Some f)
| `Vpkglist l -> `Vpkglist (Some l)
| `Veqpkg p -> `Veqpkg (Some p)
| `Veqpkglist l -> `Veqpkglist (Some l)
| `Typedecl l -> `Typedecl (Some l)
let value_of_typedecl = function
| `Int (Some v) -> Some (`Int v)
| `Posint (Some v) -> Some (`Posint v)
| `Nat (Some v) -> Some (`Nat v)
| `Bool (Some v) -> Some (`Bool v)
| `String (Some v) -> Some (`String v)
| `Pkgname (Some v) -> Some (`Pkgname v)
| `Ident (Some v) -> Some (`Ident v)
| `Enum (enums, (Some v)) -> Some (`Enum (enums, v))
| `Vpkg (Some v) -> Some (`Vpkg v)
| `Vpkgformula (Some v) -> Some (`Vpkgformula v)
| `Vpkglist (Some v) -> Some (`Vpkglist v)
| `Veqpkg (Some v) -> Some (`Veqpkg v)
| `Veqpkglist (Some v) -> Some (`Veqpkglist v)
| `Typedecl (Some v) -> Some (`Typedecl v)
| _ -> None
let type_of_value = function
| `Int n -> `Int
| `Posint n -> `Posint
| `Nat n -> `Nat
| `Bool b -> `Bool
| `String s -> `String
| `Pkgname s -> `Pkgname
| `Ident s -> `Ident
| `Enum (enums, s) -> `Enum enums
| `Vpkg p -> `Vpkg
| `Vpkgformula f -> `Vpkgformula
| `Vpkglist l -> `Vpkglist
| `Veqpkg p -> `Veqpkg
| `Veqpkglist l -> `Veqpkglist
| `Typedecl l -> `Typedecl
let rec cast typ v =
let type_error () = raise (Type_error (typ, v, dummy_loc)) in
match typ, v with
| `Posint, `Int n when n > 0 -> `Posint n
| `Nat, `Int n when n >= 0 -> `Nat n
| `Bool, `Ident "true" -> `Bool true
| `Bool, `Ident "false" -> `Bool false
| `Pkgname, `Vpkgformula [[(pkg, None)]] -> `Pkgname pkg
| `Pkgname, (`Int n | `Posint n | `Nat n) -> `Pkgname (string_of_int n)
| `Pkgname, `Ident i-> `Pkgname i
| (`Vpkg | `Veqpkg | `Vpkglist | `Veqpkglist),
(`Int n | `Posint n | `Nat n) ->
cast typ (`Vpkgformula [[string_of_int n, None]])
| (`Vpkg | `Veqpkg | `Vpkglist | `Veqpkglist), `Ident i ->
cast typ (`Vpkgformula [[i, None]])
| `Vpkg, `Vpkgformula [[vpkg]] -> `Vpkg vpkg
| (`Vpkglist | `Veqpkglist),
(`Vpkgformula [] (* "true!" *) | `Vpkgformula [ [] ] (* "false!" *)) ->
type_error ()
| `Vpkglist, `Vpkgformula f ->
if List.exists (function _ :: _ :: _ -> true | _ -> false) f then
type_error () (* there are OR-ed deps *)
else
`Vpkglist (List.map (function [vpkg] -> vpkg | _ -> assert false) f)
| `Veqpkg, `Vpkgformula [[ (_, (Some (`Eq, _) | None)) as vpkg ]] ->
`Veqpkg vpkg
| `Veqpkglist, `Vpkgformula f ->
`Veqpkglist
(List.fold_right
(fun or_deps veqpkgs ->
match or_deps with
| [ (_, (Some (`Eq, _) | None)) as vpkg ] -> vpkg :: veqpkgs
| _ -> type_error ())
f [])
| `Veqpkg, `Vpkg ((_, (Some (`Eq, _) | None)) as vpkg) -> `Veqpkg vpkg
| `Veqpkglist, `Vpkglist l ->
`Veqpkglist
(List.fold_right
(fun vpkg veqpkgs ->
match vpkg with
| (_, (Some (`Eq, _) | None)) as vpkg -> vpkg :: veqpkgs
| _ -> type_error ())
l [])
| `Enum enums, `Ident i when List.mem i enums -> `Enum (enums, i)
| `Vpkgformula, `Ident i -> `Vpkgformula [[i, None]]
| `Vpkgformula, `Int n -> `Vpkgformula [[string_of_int n, None]]
| typ, v when type_of_value v = typ -> v (* identity cast *)
| _ -> type_error ()
let rec is_eq_formula f =
not (List.exists
(fun vpkgs ->
List.exists
(function
| (_, Some ((`Neq | `Geq | `Gt | `Leq | `Lt), _)) -> true
| _ -> false)
vpkgs)
f)