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1
16 package com.google.gwt.dev.util;
17
18 import java.lang.reflect.Method  ;
19
20
23 public class TypeInfo {
24
25 public static final int NOT_FOUND = 0; public static final int TYPE_ARRAY = 0x200000;
27 public static final int TYPE_COLLECTION = 0x180000;
28 public static final int TYPE_COLLECTION_LIST = 0x100000;
29 public static final int TYPE_COLLECTION_SET = 0x080000;
30 public static final int TYPE_PRIM = 0x07fc00;
31 public static final int TYPE_PRIM_BOOLEAN = 0x008000;
32 public static final int TYPE_PRIM_BYTE = 0x000800;
33 public static final int TYPE_PRIM_CHAR = 0x000400;
34 public static final int TYPE_PRIM_DOUBLE = 0x020000;
35 public static final int TYPE_PRIM_FLOAT = 0x010000;
36 public static final int TYPE_PRIM_INT = 0x002000;
37 public static final int TYPE_PRIM_LONG = 0x004000;
38 public static final int TYPE_PRIM_SHORT = 0x001000;
39 public static final int TYPE_PRIM_VOID = 0x040000;
40 public static final int TYPE_USER = 0x400000;
41 public static final int TYPE_WRAP = 0x0003ff;
42 public static final int TYPE_WRAP_BOOLEAN = 0x000040;
43 public static final int TYPE_WRAP_BYTE = 0x000004;
44 public static final int TYPE_WRAP_CHAR = 0x000002;
45 public static final int TYPE_WRAP_DATE = 0x000200;
46 public static final int TYPE_WRAP_DOUBLE = 0x000100;
47 public static final int TYPE_WRAP_FLOAT = 0x000080;
48 public static final int TYPE_WRAP_INT = 0x000010;
49 public static final int TYPE_WRAP_LONG = 0x000020;
50 public static final int TYPE_WRAP_SHORT = 0x000008;
51 public static final int TYPE_WRAP_STRING = 0x000001;
53
54 public static int classifyType(Class type) {
55 int ret = isPrimitiveType(type);
56 if (ret != 0) {
57 return ret;
58 }
59
60 ret = isPrimitiveWrapperType(type);
61 if (ret != 0) {
62 return ret;
63 }
64
65 if (type.isArray()) {
66 return TYPE_ARRAY;
67 }
68
69 return TYPE_USER;
70 }
71
72 public static Method getInterfaceMethod(Class intf, String methodName,
73 Class [] paramTypes, boolean includeInherited) {
74 try {
75 return intf.getDeclaredMethod(methodName, paramTypes);
76 } catch (NoSuchMethodException e) {
77 if (includeInherited) {
78 Class [] superintfs = intf.getInterfaces();
79 for (int i = 0; i < superintfs.length; i++) {
80 Method method = getInterfaceMethod(superintfs[i], methodName,
81 paramTypes, true);
82 if (method != null) {
83 return method;
84 }
85 }
86 }
87
88 return null;
89 }
90 }
91
92 public static String getJavahMangledIdent(String before) {
93 StringBuffer after = new StringBuffer ();
94 char[] chars = before.toCharArray();
95 for (int i = 0; i < chars.length; i++) {
96 char c = chars[i];
97 if (c == '_') {
98 after.append("_1");
99 } else if (c == ';') {
100 after.append("_2");
101 } else if (c == '[') {
102 after.append("_3");
103 } else if (c == '/') {
104 after.append('_');
105 } else if (Character.isJavaIdentifierPart(c)) {
106 after.append(c);
107 } else {
108 throw new UnsupportedOperationException ("Cannot handle non-ascii yet");
109 }
110 }
111 return after.toString();
112 }
113
114 public static String getSourceRepresentation(Class type) {
115 if (type.equals(Integer.TYPE)) {
118 return "int";
119 } else if (type.equals(Long.TYPE)) {
120 return "long";
121 } else if (type.equals(Short.TYPE)) {
122 return "short";
123 } else if (type.equals(Byte.TYPE)) {
124 return "byte";
125 } else if (type.equals(Character.TYPE)) {
126 return "char";
127 } else if (type.equals(Boolean.TYPE)) {
128 return "boolean";
129 } else if (type.equals(Float.TYPE)) {
130 return "float";
131 } else if (type.equals(Double.TYPE)) {
132 return "double";
133 }
134
135 if (type.isArray()) {
138 Class componentType = type.getComponentType();
139 return getSourceRepresentation(componentType) + "[]";
140 }
141
142 return type.getName().replace('$', '.');
145 }
146
147 public static int isPrimitiveType(Class type) {
148 if (type.equals(Integer.TYPE)) {
149 return TYPE_PRIM_INT;
150 } else if (type.equals(Long.TYPE)) {
151 return TYPE_PRIM_LONG;
152 } else if (type.equals(Character.TYPE)) {
153 return TYPE_PRIM_CHAR;
154 } else if (type.equals(Byte.TYPE)) {
155 return TYPE_PRIM_BYTE;
156 } else if (type.equals(Short.TYPE)) {
157 return TYPE_PRIM_SHORT;
158 } else if (type.equals(Boolean.TYPE)) {
159 return TYPE_PRIM_BOOLEAN;
160 } else if (type.equals(Float.TYPE)) {
161 return TYPE_PRIM_FLOAT;
162 } else if (type.equals(Double.TYPE)) {
163 return TYPE_PRIM_DOUBLE;
164 } else if (type.equals(Void.TYPE)) {
165 return TYPE_PRIM_VOID;
166 } else {
167 return NOT_FOUND;
168 }
169 }
170
171 public static int isPrimitiveWrapperType(Class type) {
172 if (type.equals(String .class)) {
173 return TYPE_WRAP_STRING;
174 } else if (type.equals(Integer .class)) {
175 return TYPE_WRAP_INT;
176 } else if (type.equals(Long .class)) {
177 return TYPE_WRAP_LONG;
178 } else if (type.equals(Character .class)) {
179 return TYPE_WRAP_CHAR;
180 } else if (type.equals(Byte .class)) {
181 return TYPE_WRAP_BYTE;
182 } else if (type.equals(Short .class)) {
183 return TYPE_WRAP_SHORT;
184 } else if (type.equals(Boolean .class)) {
185 return TYPE_WRAP_BOOLEAN;
186 } else if (type.equals(Float .class)) {
187 return TYPE_WRAP_FLOAT;
188 } else if (type.equals(Double .class)) {
189 return TYPE_WRAP_DOUBLE;
190 } else {
191 return NOT_FOUND;
192 }
193 }
194 } |
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