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1 package polyglot.ext.jl.types;
2
3 import polyglot.types.*;
4 import polyglot.util.*;
5
6
9 public class LocalInstance_c extends VarInstance_c implements LocalInstance
10 {
11
12 protected LocalInstance_c() { }
13
14 public LocalInstance_c(TypeSystem ts, Position pos,
15 Flags flags, Type type, String  name) {
16 super(ts, pos, flags, type, name);
17 }
18
19 public void setConstantValue(Object constantValue) {
20 if (! (constantValue == null) &&
21 ! (constantValue instanceof Boolean ) &&
22 ! (constantValue instanceof Number ) &&
23 ! (constantValue instanceof Character ) &&
24 ! (constantValue instanceof String )) {
25
26 throw new InternalCompilerError(
27 "Can only set constant value to a primitive or String.");
28 }
29
30 this.constantValue = constantValue;
31 this.isConstant = true;
32 }
33
34 public LocalInstance constantValue(Object constantValue) {
35 if (this.constantValue != constantValue) {
36 LocalInstance_c n = (LocalInstance_c) copy();
37 n.setConstantValue(constantValue);
38 return n;
39 }
40 return this;
41 }
42
43 public LocalInstance flags(Flags flags) {
44 if (!flags.equals(this.flags)) {
45 LocalInstance_c n = (LocalInstance_c) copy();
46 n.flags = flags;
47 return n;
48 }
49 return this;
50 }
51
52 public LocalInstance name(String name) {
53 if ((name != null && !name.equals(this.name)) ||
54 (name == null && name != this.name)) {
55 LocalInstance_c n = (LocalInstance_c) copy();
56 n.name = name;
57 return n;
58 }
59 return this;
60 }
61
62 public LocalInstance type(Type type) {
63 if (this.type != type) {
64 LocalInstance_c n = (LocalInstance_c) copy();
65 n.type = type;
66 return n;
67 }
68 return this;
69 }
70
71 public boolean equalsImpl(TypeObject o) {
72 if (o instanceof LocalInstance) {
73 LocalInstance i = (LocalInstance) o;
74 return super.equalsImpl(i);
75 }
76
77 return false;
78 }
79
80 public String toString() {
81 return "local " + flags.translate() + type + " " + name +
82 (constantValue != null ? (" = " + constantValue) : "");
83 }
84
85 public boolean isCanonical() {
86 return type.isCanonical();
87 }
88 }
89 |
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