Mercurial > lasercutter
comparison src/clojure/asm/commons/Method.java @ 10:ef7dbbd6452c
added clojure source goodness
author | Robert McIntyre <rlm@mit.edu> |
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date | Sat, 21 Aug 2010 06:25:44 -0400 |
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9:35cf337adfcf | 10:ef7dbbd6452c |
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1 /*** | |
2 * ASM: a very small and fast Java bytecode manipulation framework | |
3 * Copyright (c) 2000-2005 INRIA, France Telecom | |
4 * All rights reserved. | |
5 * | |
6 * Redistribution and use in source and binary forms, with or without | |
7 * modification, are permitted provided that the following conditions | |
8 * are met: | |
9 * 1. Redistributions of source code must retain the above copyright | |
10 * notice, this list of conditions and the following disclaimer. | |
11 * 2. Redistributions in binary form must reproduce the above copyright | |
12 * notice, this list of conditions and the following disclaimer in the | |
13 * documentation and/or other materials provided with the distribution. | |
14 * 3. Neither the name of the copyright holders nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
28 * THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 package clojure.asm.commons; | |
31 | |
32 import java.util.HashMap; | |
33 import java.util.Map; | |
34 | |
35 import clojure.asm.Type; | |
36 | |
37 /** | |
38 * A named method descriptor. | |
39 * | |
40 * @author Juozas Baliuka | |
41 * @author Chris Nokleberg | |
42 * @author Eric Bruneton | |
43 */ | |
44 public class Method{ | |
45 | |
46 /** | |
47 * The method name. | |
48 */ | |
49 private final String name; | |
50 | |
51 /** | |
52 * The method descriptor. | |
53 */ | |
54 private final String desc; | |
55 | |
56 /** | |
57 * Maps primitive Java type names to their descriptors. | |
58 */ | |
59 private final static Map DESCRIPTORS; | |
60 | |
61 static | |
62 { | |
63 DESCRIPTORS = new HashMap(); | |
64 DESCRIPTORS.put("void", "V"); | |
65 DESCRIPTORS.put("byte", "B"); | |
66 DESCRIPTORS.put("char", "C"); | |
67 DESCRIPTORS.put("double", "D"); | |
68 DESCRIPTORS.put("float", "F"); | |
69 DESCRIPTORS.put("int", "I"); | |
70 DESCRIPTORS.put("long", "J"); | |
71 DESCRIPTORS.put("short", "S"); | |
72 DESCRIPTORS.put("boolean", "Z"); | |
73 } | |
74 | |
75 /** | |
76 * Creates a new {@link Method}. | |
77 * | |
78 * @param name the method's name. | |
79 * @param desc the method's descriptor. | |
80 */ | |
81 public Method(final String name, final String desc){ | |
82 this.name = name; | |
83 this.desc = desc; | |
84 } | |
85 | |
86 /** | |
87 * Creates a new {@link Method}. | |
88 * | |
89 * @param name the method's name. | |
90 * @param returnType the method's return type. | |
91 * @param argumentTypes the method's argument types. | |
92 */ | |
93 public Method( | |
94 final String name, | |
95 final Type returnType, | |
96 final Type[] argumentTypes){ | |
97 this(name, Type.getMethodDescriptor(returnType, argumentTypes)); | |
98 } | |
99 | |
100 /** | |
101 * Returns a {@link Method} corresponding to the given Java method | |
102 * declaration. | |
103 * | |
104 * @param method a Java method declaration, without argument names, of the | |
105 * form "returnType name (argumentType1, ... argumentTypeN)", where | |
106 * the types are in plain Java (e.g. "int", "float", | |
107 * "java.util.List", ...). Classes of the java.lang package can be | |
108 * specified by their unqualified name; all other classes names must | |
109 * be fully qualified. | |
110 * @return a {@link Method} corresponding to the given Java method | |
111 * declaration. | |
112 * @throws IllegalArgumentException if <code>method</code> could not get | |
113 * parsed. | |
114 */ | |
115 public static Method getMethod(final String method) | |
116 throws IllegalArgumentException{ | |
117 return getMethod(method, false); | |
118 } | |
119 | |
120 /** | |
121 * Returns a {@link Method} corresponding to the given Java method | |
122 * declaration. | |
123 * | |
124 * @param method a Java method declaration, without argument names, of the | |
125 * form "returnType name (argumentType1, ... argumentTypeN)", where | |
126 * the types are in plain Java (e.g. "int", "float", | |
127 * "java.util.List", ...). Classes of the java.lang package may be | |
128 * specified by their unqualified name, depending on the | |
129 * defaultPackage argument; all other classes names must be fully | |
130 * qualified. | |
131 * @param defaultPackage true if unqualified class names belong to the | |
132 * default package, or false if they correspond to java.lang classes. | |
133 * For instance "Object" means "Object" if this option is true, or | |
134 * "java.lang.Object" otherwise. | |
135 * @return a {@link Method} corresponding to the given Java method | |
136 * declaration. | |
137 * @throws IllegalArgumentException if <code>method</code> could not get | |
138 * parsed. | |
139 */ | |
140 public static Method getMethod( | |
141 final String method, | |
142 final boolean defaultPackage) throws IllegalArgumentException{ | |
143 int space = method.indexOf(' '); | |
144 int start = method.indexOf('(', space) + 1; | |
145 int end = method.indexOf(')', start); | |
146 if(space == -1 || start == -1 || end == -1) | |
147 { | |
148 throw new IllegalArgumentException(); | |
149 } | |
150 // TODO: Check validity of returnType, methodName and arguments. | |
151 String returnType = method.substring(0, space); | |
152 String methodName = method.substring(space + 1, start - 1).trim(); | |
153 StringBuffer sb = new StringBuffer(); | |
154 sb.append('('); | |
155 int p; | |
156 do | |
157 { | |
158 String s; | |
159 p = method.indexOf(',', start); | |
160 if(p == -1) | |
161 { | |
162 s = map(method.substring(start, end).trim(), defaultPackage); | |
163 } | |
164 else | |
165 { | |
166 s = map(method.substring(start, p).trim(), defaultPackage); | |
167 start = p + 1; | |
168 } | |
169 sb.append(s); | |
170 } while(p != -1); | |
171 sb.append(')'); | |
172 sb.append(map(returnType, defaultPackage)); | |
173 return new Method(methodName, sb.toString()); | |
174 } | |
175 | |
176 private static String map(final String type, final boolean defaultPackage){ | |
177 if(type.equals("")) | |
178 { | |
179 return type; | |
180 } | |
181 | |
182 StringBuffer sb = new StringBuffer(); | |
183 int index = 0; | |
184 while((index = type.indexOf("[]", index) + 1) > 0) | |
185 { | |
186 sb.append('['); | |
187 } | |
188 | |
189 String t = type.substring(0, type.length() - sb.length() * 2); | |
190 String desc = (String) DESCRIPTORS.get(t); | |
191 if(desc != null) | |
192 { | |
193 sb.append(desc); | |
194 } | |
195 else | |
196 { | |
197 sb.append('L'); | |
198 if(t.indexOf('.') < 0) | |
199 { | |
200 if(!defaultPackage) | |
201 { | |
202 sb.append("java/lang/"); | |
203 } | |
204 sb.append(t); | |
205 } | |
206 else | |
207 { | |
208 sb.append(t.replace('.', '/')); | |
209 } | |
210 sb.append(';'); | |
211 } | |
212 return sb.toString(); | |
213 } | |
214 | |
215 /** | |
216 * Returns the name of the method described by this object. | |
217 * | |
218 * @return the name of the method described by this object. | |
219 */ | |
220 public String getName(){ | |
221 return name; | |
222 } | |
223 | |
224 /** | |
225 * Returns the descriptor of the method described by this object. | |
226 * | |
227 * @return the descriptor of the method described by this object. | |
228 */ | |
229 public String getDescriptor(){ | |
230 return desc; | |
231 } | |
232 | |
233 /** | |
234 * Returns the return type of the method described by this object. | |
235 * | |
236 * @return the return type of the method described by this object. | |
237 */ | |
238 public Type getReturnType(){ | |
239 return Type.getReturnType(desc); | |
240 } | |
241 | |
242 /** | |
243 * Returns the argument types of the method described by this object. | |
244 * | |
245 * @return the argument types of the method described by this object. | |
246 */ | |
247 public Type[] getArgumentTypes(){ | |
248 return Type.getArgumentTypes(desc); | |
249 } | |
250 | |
251 public String toString(){ | |
252 return name + desc; | |
253 } | |
254 | |
255 public boolean equals(final Object o){ | |
256 if(!(o instanceof Method)) | |
257 { | |
258 return false; | |
259 } | |
260 Method other = (Method) o; | |
261 return name.equals(other.name) && desc.equals(other.desc); | |
262 } | |
263 | |
264 public int hashCode(){ | |
265 return name.hashCode() ^ desc.hashCode(); | |
266 } | |
267 } |