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1
16
19
20 package com.sun.org.apache.xalan.internal.xsltc.compiler.util;
21
22 import java.util.Vector  ;
23
24
28 public final class MethodType extends Type {
29 private final Type _resultType;
30 private final Vector _argsType;
31
32 public MethodType(Type resultType) {
33 _argsType = null;
34 _resultType = resultType;
35 }
36
37 public MethodType(Type resultType, Type arg1) {
38 if (arg1 != Type.Void) {
39 _argsType = new Vector ();
40 _argsType.addElement(arg1);
41 }
42 else {
43 _argsType = null;
44 }
45 _resultType = resultType;
46 }
47
48 public MethodType(Type resultType, Type arg1, Type arg2) {
49 _argsType = new Vector (2);
50 _argsType.addElement(arg1);
51 _argsType.addElement(arg2);
52 _resultType = resultType;
53 }
54
55 public MethodType(Type resultType, Type arg1, Type arg2, Type arg3) {
56 _argsType = new Vector (3);
57 _argsType.addElement(arg1);
58 _argsType.addElement(arg2);
59 _argsType.addElement(arg3);
60 _resultType = resultType;
61 }
62
63 public MethodType(Type resultType, Vector argsType) {
64 _resultType = resultType;
65 _argsType = argsType.size() > 0 ? argsType : null;
66 }
67
68 public String toString() {
69 StringBuffer result = new StringBuffer ("method{");
70 if (_argsType != null) {
71 final int count = _argsType.size();
72 for (int i=0; i<count; i++) {
73 result.append(_argsType.elementAt(i));
74 if (i != (count-1)) result.append(',');
75 }
76 }
77 else {
78 result.append("void");
79 }
80 result.append('}');
81 return result.toString();
82 }
83
84 public String toSignature() {
85 return toSignature("");
86 }
87
88
92 public String toSignature(String lastArgSig) {
93 final StringBuffer buffer = new StringBuffer ();
94 buffer.append('(');
95 if (_argsType != null) {
96 final int n = _argsType.size();
97 for (int i = 0; i < n; i++) {
98 buffer.append(((Type)_argsType.elementAt(i)).toSignature());
99 }
100 }
101 return buffer
102 .append(lastArgSig)
103 .append(')')
104 .append(_resultType.toSignature())
105 .toString();
106 }
107
108 public com.sun.org.apache.bcel.internal.generic.Type toJCType() {
109 return null; }
111
112 public boolean identicalTo(Type other) {
113 boolean result = false;
114 if (other instanceof MethodType) {
115 final MethodType temp = (MethodType) other;
116 if (_resultType.identicalTo(temp._resultType)) {
117 final int len = argsCount();
118 result = len == temp.argsCount();
119 for (int i = 0; i < len && result; i++) {
120 final Type arg1 = (Type)_argsType.elementAt(i);
121 final Type arg2 = (Type)temp._argsType.elementAt(i);
122 result = arg1.identicalTo(arg2);
123 }
124 }
125 }
126 return result;
127 }
128
129 public int distanceTo(Type other) {
130 int result = Integer.MAX_VALUE;
131 if (other instanceof MethodType) {
132 final MethodType mtype = (MethodType) other;
133 if (_argsType != null) {
134 final int len = _argsType.size();
135 if (len == mtype._argsType.size()) {
136 result = 0;
137 for (int i = 0; i < len; i++) {
138 Type arg1 = (Type) _argsType.elementAt(i);
139 Type arg2 = (Type) mtype._argsType.elementAt(i);
140 final int temp = arg1.distanceTo(arg2);
141 if (temp == Integer.MAX_VALUE) {
142 result = temp; break;
144 }
145 else {
146 result += arg1.distanceTo(arg2);
147 }
148 }
149 }
150 }
151 else if (mtype._argsType == null) {
152 result = 0; }
154 }
155 return result;
156 }
157
158 public Type resultType() {
159 return _resultType;
160 }
161
162 public Vector argsType() {
163 return _argsType;
164 }
165
166 public int argsCount() {
167 return _argsType == null ? 0 : _argsType.size();
168 }
169 }
170 |
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