Analysis.jrag 4.5 KB
Newer Older
Niklas Fors's avatar
Niklas Fors committed
1
2
3
import java.util.*;


Niklas Fors's avatar
Niklas Fors committed
4
aspect TypeAnalysis {
Johannes Mey's avatar
Johannes Mey committed
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
  public abstract TypeUse Component.getTypeUse();

  syn TypeDecl TypeUse.decl() = lookupType(getID());
  inh TypeDecl TypeUse.lookupType(String name);
  eq Program.getChild().lookupType(String name) {
    for (TypeDecl td: getTypeDecls()) {
      if (td.getID().equals(name)) {
        return td;
      }
    }
    return null;
  }
  syn boolean TypeDecl.isAlreadyDeclared()
    = lookupType(getID()) != this;
  inh TypeDecl TypeDecl.lookupType(String name);
20
21
22
23
24
25
26
27

  syn TypeDecl TypeDecl.mostGeneralSuperType() {
    if (!hasSuper()) {
      return this;
    } else {
      return getSuper().decl().mostGeneralSuperType();
    }
  }
Niklas Fors's avatar
Niklas Fors committed
28
}
Niklas Fors's avatar
Niklas Fors committed
29

Niklas Fors's avatar
Niklas Fors committed
30
aspect ComponentAnalysis {
Johannes Mey's avatar
Johannes Mey committed
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
  syn boolean Component.isTargetOfDirectedRelation() = false;
  eq RelationComponent.isTargetOfDirectedRelation() = isTargetOfRightDirection();
  inh boolean RelationComponent.isTargetOfRightDirection();
  eq Relation.getRight().isTargetOfRightDirection()
    = getDirection() instanceof RightDirection;
  eq Program.getChild().isTargetOfRightDirection() = false;

  syn String Component.name() = getID();

  syn TypeDecl Component.toTypeDecl() = enclosingTypeDecl();
  eq RelationComponent.toTypeDecl() = getTypeUse().decl();
  inh TypeDecl Component.enclosingTypeDecl();
  eq TypeDecl.getChild().enclosingTypeDecl() = this;
  eq Program.getChild().enclosingTypeDecl() = null;

  inh RelationComponent RelationComponent.otherSide();
  eq Relation.getLeft().otherSide() = getRight();
  eq Relation.getRight().otherSide() = getLeft();
  eq Program.getChild().otherSide() = null;

  syn TypeDecl RelationComponent.ofTypeDecl() = otherSide().toTypeDecl();

  syn boolean Component.isAlreadyDeclared()
    = !isTargetOfDirectedRelation()
      && toTypeDecl() != null
      && lookupComponent(toTypeDecl(), name()) != this;
  inh Component Component.lookupComponent(TypeDecl td, String name);
  eq Program.getChild().lookupComponent(TypeDecl td, String name)
    = lookupComponentSyn(td, name);
  syn Component Program.lookupComponentSyn(TypeDecl td, String name) {
    // Check super type first to find duplicates (shadowing is not allowed)
    if (td.hasSuper() && td.getSuper().decl() != null) {
      Component c = lookupComponentSyn(td.getSuper().decl(), name);
      if (c != null) return c;
    }

    for (Component c: td.getComponents()) {
      if (c.name().equals(name)) {
        return c;
      }
    }

    for (Relation r: getRelations()) {
      Component c = r.getLeft().lookup(td, name);
      if (c != null) return c;
      c = r.getRight().lookup(td, name);
      if (c != null) return c;
    }

    return null;
  }

  syn RelationComponent RelationComponent.lookup(TypeDecl td, String name)
    = !isTargetOfDirectedRelation() && toTypeDecl() == td && name().equals(name)
    ? this
    : null;


  coll Set<RelationComponent> TypeDecl.relationComponents()
    [new HashSet<RelationComponent>()]
    root Program;
  RelationComponent contributes this
    when !isTargetOfDirectedRelation() && toTypeDecl() != null
    to TypeDecl.relationComponents()
    for toTypeDecl();

  syn Set<OneRelationComponent> TypeDecl.oneRelationComponents() {
    Set<OneRelationComponent> set = new HashSet<>();
    for (RelationComponent rc: relationComponents()) {
      if (rc instanceof OneRelationComponent) {
        set.add((OneRelationComponent) rc);
      }
    }
    return set;
  }
Niklas Fors's avatar
Niklas Fors committed
106
107
}

108
aspect Constructors {
Johannes Mey's avatar
Johannes Mey committed
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
  syn Collection<Component> TypeDecl.componentsTransitive() {
    ArrayList<Component> list = new ArrayList<>();
    if (hasSuper() && getSuper().decl() != null) {
      list.addAll(getSuper().decl().componentsTransitive());
    }
    for (Component c: getComponents()) {
      list.add(c);
    }
    return list;
  }

  syn boolean TypeDecl.needsConstructor() {
    if (componentsTransitive().isEmpty()) {
      return false;
    }
    if (!relationComponents().isEmpty()) {
      return true;
    }
    return hasSuper()
      && getSuper().decl() != null
      && getSuper().decl().needsConstructor();
  }
131
132
}

Niklas Fors's avatar
Niklas Fors committed
133
aspect Utils {
134
135
136
137

  syn boolean RelationComponent.isMany() = false;
  eq ManyRelationComponent.isMany() = true;

Johannes Mey's avatar
Johannes Mey committed
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
  public String SimpleTypeUse.toString() {
    return getID();
  }
  public String ParameterizedTypeUse.toString() {
    StringBuilder sb = new StringBuilder();
    sb.append(getID()).append("<");
    int i = 0;
    for (TypeUse u: getTypeUses()) {
      sb.append(u.toString());
      if (++i < getNumTypeUse()) {
        sb.append(", ");
      }
    }
    sb.append(">");
    return sb.toString();
  }
  public String TypeDecl.toString() {
    return getID();
  }
Niklas Fors's avatar
Niklas Fors committed
157
}