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1
11 package org.eclipse.jdt.internal.corext.refactoring.typeconstraints.types;
12
13 import org.eclipse.jdt.core.dom.ITypeBinding;
14
15
16 public abstract class AbstractTypeVariable extends TType {
17
18 protected TType[] fBounds;
19
20 protected AbstractTypeVariable(TypeEnvironment environment) {
21 super(environment);
22 }
23
24 protected void initialize(ITypeBinding binding) {
25 super.initialize(binding);
26 ITypeBinding[] bounds= binding.getTypeBounds();
27 if (bounds.length == 0) {
28 fBounds= EMPTY_TYPE_ARRAY;
29 if (getEnvironment().getJavaLangObject() == null) {
30 getEnvironment().initializeJavaLangObject(binding.getErasure());
31 }
32 } else {
33 fBounds= new TType[bounds.length];
34 for (int i= 0; i < bounds.length; i++) {
35 fBounds[i]= getEnvironment().create(bounds[i]);
36 }
37 }
38 }
39
40 public TType getErasure() {
41 if (fBounds.length == 0)
42 return getEnvironment().getJavaLangObject();
43 return fBounds[0].getErasure();
44 }
45
46 final boolean isUnbounded() {
47 if (fBounds.length == 0)
48 return true;
49 return fBounds[0].isJavaLangObject();
50 }
51
52 public final TType[] getBounds() {
53 return (TType[]) fBounds.clone();
54 }
55
56 public final TType[] getSubTypes() {
57 return EMPTY_TYPE_ARRAY;
58 }
59
60 protected final boolean checkAssignmentBound(TType rhs) {
61 if (fBounds.length == 0)
62 return true;
63 for (int i= 0; i < fBounds.length; i++) {
64 if (rhs.canAssignTo(fBounds[i]))
65 return true;
66 }
67 return false;
68 }
69
70 protected final boolean canAssignOneBoundTo(TType lhs) {
71 if (fBounds.length == 0)
72 return lhs.isJavaLangObject();
73 for (int i= 0; i < fBounds.length; i++) {
74 if (fBounds[i].canAssignTo(lhs))
75 return true;
76 }
77 return false;
78 }
79
80 }
81 |
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