author | jrose |
Thu, 07 Jan 2010 16:16:45 -0800 | |
changeset 4537 | 7c3c7f8d5195 |
parent 2707 | jdk/src/share/classes/sun/dyn/util/BytecodeSignature.java@5a17df307cbc |
child 5506 | 202f599c92aa |
permissions | -rw-r--r-- |
2707
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
1 |
/* |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
2 |
* Copyright 2008-2009 Sun Microsystems, Inc. All Rights Reserved. |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
4 |
* |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
5 |
* This code is free software; you can redistribute it and/or modify it |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
6 |
* under the terms of the GNU General Public License version 2 only, as |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
7 |
* published by the Free Software Foundation. Sun designates this |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
8 |
* particular file as subject to the "Classpath" exception as provided |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
9 |
* by Sun in the LICENSE file that accompanied this code. |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
10 |
* |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
15 |
* accompanied this code). |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
16 |
* |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
17 |
* You should have received a copy of the GNU General Public License version |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation, |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
20 |
* |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
21 |
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
22 |
* CA 95054 USA or visit www.sun.com if you need additional information or |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
23 |
* have any questions. |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
24 |
*/ |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
25 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
26 |
package sun.dyn.util; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
27 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
28 |
import java.dyn.MethodType; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
29 |
import java.util.ArrayList; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
30 |
import java.util.List; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
31 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
32 |
/** |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
33 |
* Utility routines for dealing with bytecode-level signatures. |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
34 |
* @author jrose |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
35 |
*/ |
4537 | 36 |
public class BytecodeDescriptor { |
2707
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
37 |
|
4537 | 38 |
private BytecodeDescriptor() { } // cannot instantiate |
2707
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
39 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
40 |
public static List<Class<?>> parseMethod(String bytecodeSignature, ClassLoader loader) { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
41 |
return parseMethod(bytecodeSignature, 0, bytecodeSignature.length(), loader); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
42 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
43 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
44 |
static List<Class<?>> parseMethod(String bytecodeSignature, |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
45 |
int start, int end, ClassLoader loader) { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
46 |
if (loader == null) |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
47 |
loader = ClassLoader.getSystemClassLoader(); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
48 |
String str = bytecodeSignature; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
49 |
int[] i = {start}; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
50 |
ArrayList<Class<?>> ptypes = new ArrayList<Class<?>>(); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
51 |
if (i[0] < end && str.charAt(i[0]) == '(') { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
52 |
++i[0]; // skip '(' |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
53 |
while (i[0] < end && str.charAt(i[0]) != ')') { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
54 |
Class<?> pt = parseSig(str, i, end, loader); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
55 |
if (pt == null || pt == void.class) |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
56 |
parseError(str, "bad argument type"); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
57 |
ptypes.add(pt); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
58 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
59 |
++i[0]; // skip ')' |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
60 |
} else { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
61 |
parseError(str, "not a method type"); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
62 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
63 |
Class<?> rtype = parseSig(str, i, end, loader); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
64 |
if (rtype == null || i[0] != end) |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
65 |
parseError(str, "bad return type"); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
66 |
ptypes.add(rtype); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
67 |
return ptypes; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
68 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
69 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
70 |
static private void parseError(String str, String msg) { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
71 |
throw new IllegalArgumentException("bad signature: "+str+": "+msg); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
72 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
73 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
74 |
static private Class<?> parseSig(String str, int[] i, int end, ClassLoader loader) { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
75 |
if (i[0] == end) return null; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
76 |
char c = str.charAt(i[0]++); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
77 |
if (c == 'L') { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
78 |
int begc = i[0], endc = str.indexOf(';', begc); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
79 |
if (endc < 0) return null; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
80 |
i[0] = endc+1; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
81 |
String name = str.substring(begc, endc).replace('/', '.'); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
82 |
try { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
83 |
return loader.loadClass(name); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
84 |
} catch (ClassNotFoundException ex) { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
85 |
throw new TypeNotPresentException(name, ex); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
86 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
87 |
} else if (c == '[') { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
88 |
Class<?> t = parseSig(str, i, end, loader); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
89 |
if (t != null) |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
90 |
t = java.lang.reflect.Array.newInstance(t, 0).getClass(); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
91 |
return t; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
92 |
} else { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
93 |
return Wrapper.forBasicType(c).primitiveType(); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
94 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
95 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
96 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
97 |
public static String unparse(Class<?> type) { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
98 |
StringBuilder sb = new StringBuilder(); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
99 |
unparseSig(type, sb); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
100 |
return sb.toString(); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
101 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
102 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
103 |
public static String unparse(MethodType type) { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
104 |
return unparseMethod(type.returnType(), type.parameterList()); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
105 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
106 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
107 |
public static String unparse(Object type) { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
108 |
if (type instanceof Class<?>) |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
109 |
return unparse((Class<?>) type); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
110 |
if (type instanceof MethodType) |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
111 |
return unparse((MethodType) type); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
112 |
return (String) type; |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
113 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
114 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
115 |
public static String unparseMethod(Class<?> rtype, List<Class<?>> ptypes) { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
116 |
StringBuilder sb = new StringBuilder(); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
117 |
sb.append('('); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
118 |
for (Class<?> pt : ptypes) |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
119 |
unparseSig(pt, sb); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
120 |
sb.append(')'); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
121 |
unparseSig(rtype, sb); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
122 |
return sb.toString(); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
123 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
124 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
125 |
static private void unparseSig(Class<?> t, StringBuilder sb) { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
126 |
char c = Wrapper.forBasicType(t).basicTypeChar(); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
127 |
if (c != 'L') { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
128 |
sb.append(c); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
129 |
} else { |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
130 |
boolean lsemi = (!t.isArray()); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
131 |
if (lsemi) sb.append('L'); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
132 |
sb.append(t.getName().replace('.', '/')); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
133 |
if (lsemi) sb.append(';'); |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
134 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
135 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
136 |
|
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
137 |
} |