## lustrec / src / lustreSpec.ml @ 68601cf5

History | View | Annotate | Download (7.16 KB)

1 |
(********************************************************************) |
---|---|

2 |
(* *) |

3 |
(* The LustreC compiler toolset / The LustreC Development Team *) |

4 |
(* Copyright 2012 - -- ONERA - CNRS - INPT *) |

5 |
(* *) |

6 |
(* LustreC is free software, distributed WITHOUT ANY WARRANTY *) |

7 |
(* under the terms of the GNU Lesser General Public License *) |

8 |
(* version 2.1. *) |

9 |
(* *) |

10 |
(********************************************************************) |

11 | |

12 |
type ident = Utils.ident |

13 |
type rat = Utils.rat |

14 |
type tag = Utils.tag |

15 |
type label = Utils.ident |

16 | |

17 |
type type_dec = |

18 |
{ty_dec_desc: type_dec_desc; |

19 |
ty_dec_loc: Location.t} |

20 | |

21 |
and type_dec_desc = |

22 |
| Tydec_any |

23 |
| Tydec_int |

24 |
| Tydec_real |

25 |
(* | Tydec_float *) |

26 |
| Tydec_bool |

27 |
| Tydec_clock of type_dec_desc |

28 |
| Tydec_const of ident |

29 |
| Tydec_enum of ident list |

30 |
| Tydec_struct of (ident * type_dec_desc) list |

31 |
| Tydec_array of Dimension.dim_expr * type_dec_desc |

32 | |

33 |
type typedec_desc = |

34 |
{tydec_id: ident} |

35 | |

36 |
type typedef_desc = |

37 |
{tydef_id: ident; |

38 |
tydef_desc: type_dec_desc} |

39 | |

40 |
type clock_dec = |

41 |
{ck_dec_desc: clock_dec_desc; |

42 |
ck_dec_loc: Location.t} |

43 | |

44 |
and clock_dec_desc = |

45 |
| Ckdec_any |

46 |
| Ckdec_bool of (ident * ident) list |

47 | |

48 | |

49 |
type constant = |

50 |
| Const_int of int |

51 |
| Const_real of Num.num * int * string (* (a, b, c) means a * 10^-b. c is the original string *) |

52 |
| Const_array of constant list |

53 |
| Const_tag of label |

54 |
| Const_string of string (* used only for annotations *) |

55 |
| Const_struct of (label * constant) list |

56 | |

57 |
type quantifier_type = Exists | Forall |

58 | |

59 |
type var_decl = |

60 |
{var_id: ident; |

61 |
var_orig:bool; |

62 |
var_dec_type: type_dec; |

63 |
var_dec_clock: clock_dec; |

64 |
var_dec_const: bool; |

65 |
var_dec_value: expr option; |

66 |
mutable var_type: Types.type_expr; |

67 |
mutable var_clock: Clocks.clock_expr; |

68 |
var_loc: Location.t} |

69 | |

70 |
(** The core language and its ast. Every element of the ast contains its |

71 |
location in the program text. The type and clock of an ast element |

72 |
is mutable (and initialized to dummy values). This avoids to have to |

73 |
duplicate ast structures (e.g. ast, typed_ast, clocked_ast). *) |

74 | |

75 | |

76 | |

77 |
(* The tag of an expression is a unique identifier used to distinguish |

78 |
different instances of the same node *) |

79 |
and expr = |

80 |
{expr_tag: tag; |

81 |
expr_desc: expr_desc; |

82 |
mutable expr_type: Types.type_expr; |

83 |
mutable expr_clock: Clocks.clock_expr; |

84 |
mutable expr_delay: Delay.delay_expr; |

85 |
mutable expr_annot: expr_annot option; |

86 |
expr_loc: Location.t} |

87 | |

88 |
and expr_desc = |

89 |
| Expr_const of constant |

90 |
| Expr_ident of ident |

91 |
| Expr_tuple of expr list |

92 |
| Expr_ite of expr * expr * expr |

93 |
| Expr_arrow of expr * expr |

94 |
| Expr_fby of expr * expr |

95 |
| Expr_array of expr list |

96 |
| Expr_access of expr * Dimension.dim_expr |

97 |
| Expr_power of expr * Dimension.dim_expr |

98 |
| Expr_pre of expr |

99 |
| Expr_when of expr * ident * label |

100 |
| Expr_merge of ident * (label * expr) list |

101 |
| Expr_appl of call_t |

102 | |

103 |
and call_t = ident * expr * expr option |

104 |
(* The third part denotes the boolean condition for resetting *) |

105 | |

106 |
and eq = |

107 |
{eq_lhs: ident list; |

108 |
eq_rhs: expr; |

109 |
eq_loc: Location.t} |

110 | |

111 |
(* The tag of an expression is a unique identifier used to distinguish |

112 |
different instances of the same node *) |

113 |
and eexpr = |

114 |
{eexpr_tag: tag; |

115 |
eexpr_qfexpr: expr; |

116 |
eexpr_quantifiers: (quantifier_type * var_decl list) list; |

117 |
mutable eexpr_type: Types.type_expr; |

118 |
mutable eexpr_clock: Clocks.clock_expr; |

119 |
mutable eexpr_normalized: (var_decl * eq list * var_decl list) option; |

120 |
eexpr_loc: Location.t} |

121 | |

122 |
and expr_annot = |

123 |
{annots: (string list * eexpr) list; |

124 |
annot_loc: Location.t} |

125 | |

126 |
type node_annot = { |

127 |
requires: eexpr list; |

128 |
ensures: eexpr list; |

129 |
behaviors: (string * eexpr list * eexpr list * Location.t) list; |

130 |
spec_loc: Location.t; |

131 |
} |

132 | |

133 |
type offset = |

134 |
| Index of Dimension.dim_expr |

135 |
| Field of label |

136 | |

137 |
type assert_t = |

138 |
{ |

139 |
assert_expr: expr; |

140 |
assert_loc: Location.t; |

141 |
} |

142 | |

143 |
type statement = |

144 |
| Eq of eq |

145 |
| Aut of automata_desc |

146 | |

147 |
and automata_desc = |

148 |
{aut_id : ident; |

149 |
aut_handlers: handler_desc list; |

150 |
aut_loc: Location.t} |

151 | |

152 |
and handler_desc = |

153 |
{hand_state: ident; |

154 |
hand_unless: (Location.t * expr * bool * ident) list; |

155 |
hand_until: (Location.t * expr * bool * ident) list; |

156 |
hand_locals: var_decl list; |

157 |
hand_stmts: statement list; |

158 |
hand_asserts: assert_t list; |

159 |
hand_annots: expr_annot list; |

160 |
hand_loc: Location.t} |

161 | |

162 |
type node_desc = |

163 |
{node_id: ident; |

164 |
mutable node_type: Types.type_expr; |

165 |
mutable node_clock: Clocks.clock_expr; |

166 |
node_inputs: var_decl list; |

167 |
node_outputs: var_decl list; |

168 |
node_locals: var_decl list; |

169 |
mutable node_gencalls: expr list; |

170 |
mutable node_checks: Dimension.dim_expr list; |

171 |
node_asserts: assert_t list; |

172 |
node_stmts: statement list; |

173 |
mutable node_dec_stateless: bool; |

174 |
mutable node_stateless: bool option; |

175 |
node_spec: node_annot option; |

176 |
node_annot: expr_annot list; |

177 |
} |

178 | |

179 |
type imported_node_desc = |

180 |
{nodei_id: ident; |

181 |
mutable nodei_type: Types.type_expr; |

182 |
mutable nodei_clock: Clocks.clock_expr; |

183 |
nodei_inputs: var_decl list; |

184 |
nodei_outputs: var_decl list; |

185 |
nodei_stateless: bool; |

186 |
nodei_spec: node_annot option; |

187 |
nodei_prototype: string option; |

188 |
nodei_in_lib: string list; |

189 |
} |

190 | |

191 |
type const_desc = |

192 |
{const_id: ident; |

193 |
const_loc: Location.t; |

194 |
const_value: constant; |

195 |
mutable const_type: Types.type_expr; |

196 |
} |

197 | |

198 |
type top_decl_desc = |

199 |
| Node of node_desc |

200 |
| Const of const_desc |

201 |
| ImportedNode of imported_node_desc |

202 |
| Open of bool * string (* the boolean set to true denotes a local |

203 |
lusi vs a lusi installed at system level *) |

204 |
| TypeDef of typedef_desc |

205 | |

206 |
type top_decl = |

207 |
{top_decl_desc: top_decl_desc; (* description of the symbol *) |

208 |
top_decl_owner: Location.filename; (* the module where it is defined *) |

209 |
top_decl_itf: bool; (* header or source file ? *) |

210 |
top_decl_loc: Location.t} (* the location where it is defined *) |

211 | |

212 |
type program = top_decl list |

213 | |

214 |
type dep_t = Dep of |

215 |
bool |

216 |
* ident |

217 |
* (top_decl list) |

218 |
* bool (* is stateful *) |

219 | |

220 | |

221 |
(************ Machine code types *************) |

222 | |

223 |
type value_t = |

224 |
{ |

225 |
value_desc: value_t_desc; |

226 |
value_type: Types.type_expr; |

227 |
value_annot: expr_annot option |

228 |
} |

229 |
and value_t_desc = |

230 |
| Cst of constant |

231 |
| LocalVar of var_decl |

232 |
| StateVar of var_decl |

233 |
| Fun of ident * value_t list |

234 |
| Array of value_t list |

235 |
| Access of value_t * value_t |

236 |
| Power of value_t * value_t |

237 | |

238 |
type instr_t = |

239 |
{ |

240 |
instr_desc: instr_t_desc; (* main data: the content *) |

241 |
(* lustre_expr: expr option; (* possible representation as a lustre expression *) *) |

242 |
lustre_eq: eq option; (* possible representation as a lustre flow equation *) |

243 |
} |

244 |
and instr_t_desc = |

245 |
| MLocalAssign of var_decl * value_t |

246 |
| MStateAssign of var_decl * value_t |

247 |
| MReset of ident |

248 |
| MNoReset of ident |

249 |
| MStep of var_decl list * ident * value_t list |

250 |
| MBranch of value_t * (label * instr_t list) list |

251 |
| MComment of string |

252 | |

253 | |

254 |
(* Local Variables: *) |

255 |
(* compile-command:"make -C .." *) |

256 |
(* End: *) |