/
classinf.rml
280 lines (212 loc) · 7.11 KB
/
classinf.rml
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
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
(*
* CLASS -+- TYPE --- RECORD --- CONNECTOR
* |
* +- BLOCK --- FUNCTION
* |
* +- PACKAGE
* |
* +- MODEL
*
*)
module ClassInf :
datatype Restriction = R_CLASS
| R_MODEL
| R_RECORD
| R_BLOCK
| R_CONNECTOR
| R_TYPE
| R_PACKAGE
| R_FUNCTION
| R_PREDEFINED_INT (* For internal use only *)
| R_PREDEFINED_REAL
| R_PREDEFINED_STRING
| R_PREDEFINED_BOOL
datatype State = UNKNOWN of string
| MODEL of string
| RECORD of string
| BLOCK of string
| CONNECTOR of string
| TYPE of string
| PACKAGE of string
| FUNCTION of string
| HAS_EQUATIONS of string
| IS_NEW of string
| TYPE_INTEGER of string
| TYPE_REAL of string
| TYPE_STRING of string
| TYPE_BOOL of string
datatype Event = FOUND_EQUATION (* There are definitions *)
| NEWDEF (* This is not a derived class *)
relation print_restr : Restriction => ()
relation print_state : State => ()
relation start : (Restriction, string) => State
relation trans : (State, Event) => State
relation valid : (State, Restriction) => ()
relation assert_valid : (State, Restriction) => ()
end
relation print_restr : Restriction => () =
rule print "CLASS"
-------------
print_restr R_CLASS
rule print "MODEL"
-------------
print_restr R_MODEL
rule print "RECORD"
--------------
print_restr R_RECORD
rule print "BLOCK"
-------------
print_restr R_BLOCK
rule print "CONNECTOR"
-----------------
print_restr R_CONNECTOR
rule print "TYPE"
------------
print_restr R_TYPE
rule print "PACKAGE"
---------------
print_restr R_PACKAGE
rule print "FUNCTION"
----------------
print_restr R_FUNCTION
rule print "PREDEFINED_INT"
----------------
print_restr R_PREDEFINED_INT
rule print "PREDEFINED_REAL"
----------------
print_restr R_PREDEFINED_REAL
rule print "PREDEFINED_STRING"
----------------
print_restr R_PREDEFINED_STRING
rule print "PREDEFINED_BOOL"
----------------
print_restr R_PREDEFINED_BOOL
end
relation print_state : State => () =
rule print "UNKNOWN " & print s
----------------------------
print_state UNKNOWN(s)
rule print "MODEL " & print s
----------------------------
print_state MODEL(s)
rule print "RECORD " & print s
----------------------------
print_state RECORD(s)
rule print "BLOCK " & print s
----------------------------
print_state BLOCK(s)
rule print "CONNECTOR " & print s
----------------------------
print_state CONNECTOR(s)
rule print "TYPE " & print s
----------------------------
print_state TYPE(s)
rule print "PACKAGE " & print s
----------------------------
print_state PACKAGE(s)
rule print "FUNCTION " & print s
----------------------------
print_state FUNCTION(s)
rule print "TYPE_INTEGER " & print s
----------------------------
print_state TYPE_INTEGER(s)
rule print "TYPE_REAL " & print s
----------------------------
print_state TYPE_REAL(s)
rule print "TYPE_STRING " & print s
----------------------------
print_state TYPE_STRING(s)
rule print "TYPE_BOOL " & print s
----------------------------
print_state TYPE_BOOL(s)
rule print "IS_NEW " & print s
----------------------------
print_state IS_NEW(s)
rule print "HAS_EQUATIONS " & print s
----------------------------
print_state HAS_EQUATIONS(s)
end
relation start : (Restriction, string) => State =
axiom start (R_CLASS, s) => UNKNOWN(s)
axiom start (R_MODEL, s) => MODEL(s)
axiom start (R_RECORD, s) => RECORD(s)
axiom start (R_BLOCK, s) => BLOCK(s)
axiom start (R_CONNECTOR, s) => CONNECTOR(s)
axiom start (R_TYPE, s) => TYPE(s)
axiom start (R_PACKAGE, s) => PACKAGE(s)
axiom start (R_FUNCTION, s) => FUNCTION(s)
axiom start (R_PREDEFINED_INT, s) => TYPE_INTEGER(s)
axiom start (R_PREDEFINED_REAL, s) => TYPE_REAL(s)
axiom start (R_PREDEFINED_STRING, s) => TYPE_STRING(s)
axiom start (R_PREDEFINED_BOOL, s) => TYPE_BOOL(s)
end
relation trans : (State, Event) => State =
(* NEWDEF *)
axiom trans(UNKNOWN(s), NEWDEF) => IS_NEW(s)
axiom trans(MODEL(s), NEWDEF) => MODEL(s)
axiom trans(RECORD(s), NEWDEF) => RECORD(s)
axiom trans(BLOCK(s), NEWDEF) => BLOCK(s)
axiom trans(CONNECTOR(s), NEWDEF) => CONNECTOR(s)
rule print "# In class " & print s & print "\n" &
print "# 'type' can only be derived from predefined types\n"
-----------------------------------------------
trans(TYPE(s), NEWDEF) => fail
axiom trans(PACKAGE(s), NEWDEF) => PACKAGE(s)
axiom trans(FUNCTION(s), NEWDEF) => FUNCTION(s)
axiom trans(TYPE_INTEGER(s), NEWDEF) => TYPE_INTEGER(s)
axiom trans(TYPE_REAL(s), NEWDEF) => TYPE_REAL(s)
axiom trans(TYPE_STRING(s), NEWDEF) => TYPE_STRING(s)
axiom trans(TYPE_BOOL(s), NEWDEF) => TYPE_BOOL(s)
(* FOUND_EQUATION *)
axiom trans(UNKNOWN(s), FOUND_EQUATION) => HAS_EQUATIONS(s)
axiom trans(IS_NEW(s), FOUND_EQUATION) => HAS_EQUATIONS(s)
axiom trans(MODEL(s), FOUND_EQUATION) => MODEL(s)
rule print "# In class " & print s & print "\n" &
print "# Equations not allowed in records\n"
-----------------------------------------------
trans(RECORD(s), FOUND_EQUATION) => fail
axiom trans(BLOCK(s), FOUND_EQUATION) => BLOCK(s)
rule print "# In class " & print s & print "\n" &
print "# Equations not allowed in connectors\n"
-----------------------------------------------
trans(CONNECTOR(s), FOUND_EQUATION) => fail
axiom trans(TYPE(s), FOUND_EQUATION) => fail (* CORRECT? *)
axiom trans(PACKAGE(s), FOUND_EQUATION) => fail
axiom trans(FUNCTION(s), FOUND_EQUATION) => fail
axiom trans(HAS_EQUATIONS(s), FOUND_EQUATION) => HAS_EQUATIONS(s)
rule print "- trans fallthru: " & print_state st & print "\n"
--------------------------------------------------------
trans(st, ev) => fail
end
relation valid : (State, Restriction) => () =
axiom valid(UNKNOWN(s), _)
axiom valid(IS_NEW(s), R_CLASS)
axiom valid(HAS_EQUATIONS(s), R_CLASS)
axiom valid(MODEL(s), R_MODEL)
axiom valid(IS_NEW(s), R_MODEL)
axiom valid(HAS_EQUATIONS(s), R_MODEL)
axiom valid(RECORD(s), R_RECORD)
axiom valid(IS_NEW(s), R_RECORD)
axiom valid(BLOCK(s), R_BLOCK)
axiom valid(HAS_EQUATIONS(s), R_BLOCK)
axiom valid(CONNECTOR(s), R_CONNECTOR)
axiom valid(IS_NEW(s), R_CONNECTOR)
axiom valid(TYPE(s), R_TYPE)
axiom valid(TYPE_INTEGER(s), R_TYPE)
axiom valid(TYPE_REAL(s), R_TYPE)
axiom valid(TYPE_STRING(s), R_TYPE)
axiom valid(TYPE_BOOL(s), R_TYPE)
axiom valid(IS_NEW(s), R_PACKAGE)
axiom valid(PACKAGE(s), R_PACKAGE)
axiom valid(IS_NEW(s), R_FUNCTION)
axiom valid(FUNCTION(s), R_FUNCTION)
end
relation assert_valid : (State, Restriction) => () =
rule valid(st,re)
------------
assert_valid(st,re)
rule print "# Restriction violation: " & print_state st &
print " is not a " & print_restr re & print "\n"
-------------------------------------------
assert_valid(st,re) => fail
end