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
|
package hu.bme.mit.inf.dlsreasoner.alloy.reasoner.builder
import edu.mit.csail.sdg.alloy4compiler.ast.ExprVar
import edu.mit.csail.sdg.alloy4compiler.ast.Sig.Field
import edu.mit.csail.sdg.alloy4compiler.translator.A4Solution
import hu.bme.mit.inf.dslreasoner.logic.model.builder.LogicModelInterpretation
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.ConstantDeclaration
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.DefinedElement
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.FunctionDeclaration
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.LogiclanguageFactory
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.RelationDeclaration
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.Type
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.TypeDeclaration
import hu.bme.mit.inf.dslreasoner.logic.model.logiclanguage.TypeDefinition
import java.util.Arrays
import java.util.HashMap
import java.util.LinkedList
import java.util.List
import java.util.Map
import java.util.Set
import static extension hu.bme.mit.inf.dslreasoner.util.CollectionsUtil.*
class AlloyModelInterpretation implements LogicModelInterpretation{
protected val extension LogiclanguageFactory factory = LogiclanguageFactory.eINSTANCE
//protected val extension LogicProblemBuilder builder = new LogicProblemBuilder
protected val Logic2AlloyLanguageMapper forwardMapper
protected val Logic2AlloyLanguageMapperTrace forwardTrace;
private var ExprVar logicLanguage;
private var String logicBooleanTrue;
private var String logicBooleanFalse;
val Map<String,DefinedElement> alloyAtom2LogicElement = new HashMap
private val Map<TypeDeclaration, List<DefinedElement>> interpretationOfUndefinedType = new HashMap
private val Map<ConstantDeclaration, Object> constant2Value
private val Map<FunctionDeclaration, ? extends Map<ParameterSubstitution, Object>> function2Value
private val Map<RelationDeclaration, ? extends Set<ParameterSubstitution>> relation2Value
private val int minInt
private val int maxInt
public new (A4Solution solution, Logic2AlloyLanguageMapper forwardMapper, Logic2AlloyLanguageMapperTrace trace) {
this.forwardMapper = forwardMapper
this.forwardTrace = trace
//TMP sig maps to identify alloy signatures by their names
val Map<String,Type> sigName2LogicType =
forwardTrace.type2ALSType.keySet.toMap[x|forwardTrace.type2ALSType.get(x).name]
val Map<String,DefinedElement> elementNameNamel2DefinedElement =
forwardTrace.definedElement2Declaration.keySet.toMap[x|forwardTrace.definedElement2Declaration.get(x).name]
// Fill the interpretation map with empty lists
forwardTrace.type2ALSType.keySet.filter(TypeDeclaration).forEach[x|interpretationOfUndefinedType.put(x,new LinkedList)]
// exporing individuals
for(atom: solution.allAtoms) {
val typeName = getName(atom.type)
val atomName = atom.name
//println(atom.toString + " < - " + typeName)
if(typeName == forwardTrace.logicLanguage.name) {
this.logicLanguage = atom
} else if(typeName == "Int" || typeName == "seq/Int") {
// do nothing
} else if(sigName2LogicType.containsKey(typeName) && typeName.lookup(sigName2LogicType) instanceof TypeDefinition) {
val element = elementNameNamel2DefinedElement.get(atomName.head)
alloyAtom2LogicElement.put(atom.label,element)
} else if(sigName2LogicType.containsKey(typeName)) {
val type = sigName2LogicType.get(typeName)
val elementsOfType = interpretationOfUndefinedType.get(type)
val element = createDefinedElement => [
it.name += type.name
it.name += (elementsOfType.size+1).toString
]
alloyAtom2LogicElement.put(atom.label,element)
elementsOfType+=element
} else if(forwardTrace.boolType != null && typeName == forwardTrace.boolType.name) {
if(atomName.head == forwardTrace.boolTrue.name) { this.logicBooleanTrue = atom.label }
else if(atomName.head == forwardTrace.boolFalse.name) { this.logicBooleanFalse = atom.label}
else throw new UnsupportedOperationException('''Unknown boolean value: «atom»''')
}
else throw new UnsupportedOperationException('''Unknown atom: «atom»''')
}
//TMP field maps
val Map<String, Field> name2AlloyField = new HashMap
// exploring signatures
for(sig:solution.allReachableSigs) {
for(field : sig.fields) {
name2AlloyField.put(field.label,field)
}
}
// eval consants
constant2Value = forwardTrace.constantDeclaration2LanguageField.mapValues[
solution.eval(it.name.lookup(name2AlloyField)).head.atom(1).atomLabel2Term
]
// eval functions
val hostedfunction2Value = forwardTrace.functionDeclaration2HostedField.mapValues[ function |
newHashMap(
solution.eval(function.name.lookup(name2AlloyField))
.map[t | new ParameterSubstitution(#[t.atom(0).atomLabel2Term]) -> t.atom(1).atomLabel2Term])]
val globalfunction2Value = forwardTrace.functionDeclaration2LanguageField.keySet.toInvertedMap[ function |
val alsFunction = function.lookup(forwardTrace.functionDeclaration2LanguageField)
val paramIndexes = 1..(function.parameters.size)
return newHashMap(
solution.eval(alsFunction.name.lookup(name2AlloyField)).map[t |
new ParameterSubstitution(paramIndexes.map[t.atom(it).atomLabel2Term])
->
t.atom(function.parameters.size + 1).atomLabel2Term
])]
this.function2Value = Union(hostedfunction2Value,globalfunction2Value)
// eval relations
val hostedRelation2Value = forwardTrace.relationDeclaration2Field.mapValues[ relation |
solution.eval(relation.name.lookup(name2AlloyField)).map[ t |
new ParameterSubstitution(#[t.atom(0).atomLabel2Term,t.atom(1).atomLabel2Term])].toSet]
val globalRelation2Value = forwardTrace.relationDeclaration2Global.mapValues[ relation |
solution.eval(relation.name.lookup(name2AlloyField)).map[ t |
new ParameterSubstitution((1..<t.arity).map[int a|t.atom(a).atomLabel2Term])].toSet]
this.relation2Value = Union(hostedRelation2Value,globalRelation2Value)
//Int limits
this.minInt = solution.min
this.maxInt = solution.max
//print
}
def print() {
println('''Elements-----''')
interpretationOfUndefinedType.forEach[k,v|println('''«k.name» -> «v»''')]
println('''Constants-----''')
constant2Value.forEach[k, v|println('''«k.name» : «v»''')]
println('''Functions-----''')
function2Value.forEach[f,m|m.forEach[k,v| println('''«f.name» : «k» |-> «v»''')]]
println('''Relations-----''')
relation2Value.forEach[r,s|s.forEach[t | println('''«r.name»: («t»)''')]]
}
def private getName(edu.mit.csail.sdg.alloy4compiler.ast.Type type) {
val name = type.toString
if(name.startsWith("{this/") && name.endsWith("}")) {
return type.toString.replaceFirst("\\{this\\/","").replace("}","")
}
else throw new IllegalArgumentException('''Unknown type format: "«name»"!''')
}
def private getName(ExprVar atom) { atom.toString.split("\\$") }
override getElements(Type type) { getElementsDispatch(type) }
def private dispatch getElementsDispatch(TypeDeclaration declaration) { return declaration.lookup(this.interpretationOfUndefinedType) }
def private dispatch getElementsDispatch(TypeDefinition declaration) { return declaration.elements }
override getInterpretation(FunctionDeclaration function, Object[] parameterSubstitution) {
val transformedParams = new ParameterSubstitution(parameterSubstitution)
return transformedParams.lookup(
function.lookup(this.function2Value)
)
}
override getInterpretation(RelationDeclaration relation, Object[] parameterSubstitution) {
relation.lookup(this.relation2Value).contains(new ParameterSubstitution(parameterSubstitution))
}
override getInterpretation(ConstantDeclaration constant) {
constant.lookup(this.constant2Value)
}
override getMinimalInteger() { this.minInt }
override getMaximalInteger() { this.maxInt }
// Alloy term -> logic term
def private atomLabel2Term(String label) {
if(label.number) return Integer.parseInt(label)
else if(label == this.logicBooleanTrue) return true
else if(label == this.logicBooleanFalse) return false
else if(this.alloyAtom2LogicElement.containsKey(label)) return label.lookup(alloyAtom2LogicElement)
else throw new IllegalArgumentException('''Unknown atom label: "«label»"!''')
}
def isNumber(String s) {
try{
Integer.parseInt(s)
return true
}catch(NumberFormatException e) {
return false
}
}
}
class ParameterSubstitution{
val Object[] data;
new(Object[] data) { this.data = data }
override equals(Object obj) {
if(obj === this) return true
else if(obj == null) return false
if(obj instanceof ParameterSubstitution) {
return Arrays.equals(this.data,obj.data)
}
return false
}
override hashCode() {
Arrays.hashCode(data)
}
}
|