Source Code Cross Referenced for ClassTypeWriter.java in  » Scripting » Kawa » gnu » bytecode » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation
1. 6.0 JDK Core
2. 6.0 JDK Modules
3. 6.0 JDK Modules com.sun
4. 6.0 JDK Modules com.sun.java
5. 6.0 JDK Modules sun
6. 6.0 JDK Platform
7. Ajax
8. Apache Harmony Java SE
9. Aspect oriented
10. Authentication Authorization
11. Blogger System
12. Build
13. Byte Code
14. Cache
15. Chart
16. Chat
17. Code Analyzer
18. Collaboration
19. Content Management System
20. Database Client
21. Database DBMS
22. Database JDBC Connection Pool
23. Database ORM
24. Development
25. EJB Server geronimo
26. EJB Server GlassFish
27. EJB Server JBoss 4.2.1
28. EJB Server resin 3.1.5
29. ERP CRM Financial
30. ESB
31. Forum
32. GIS
33. Graphic Library
34. Groupware
35. HTML Parser
36. IDE
37. IDE Eclipse
38. IDE Netbeans
39. Installer
40. Internationalization Localization
41. Inversion of Control
42. Issue Tracking
43. J2EE
44. JBoss
45. JMS
46. JMX
47. Library
48. Mail Clients
49. Net
50. Parser
51. PDF
52. Portal
53. Profiler
54. Project Management
55. Report
56. RSS RDF
57. Rule Engine
58. Science
59. Scripting
60. Search Engine
61. Security
62. Sevlet Container
63. Source Control
64. Swing Library
65. Template Engine
66. Test Coverage
67. Testing
68. UML
69. Web Crawler
70. Web Framework
71. Web Mail
72. Web Server
73. Web Services
74. Web Services apache cxf 2.0.1
75. Web Services AXIS2
76. Wiki Engine
77. Workflow Engines
78. XML
79. XML UI
Java
Java Tutorial
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Source Code / Java Documentation » Scripting » Kawa » gnu.bytecode 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        // Copyright (c) 1997  Per M.A. Bothner.
002:        // This is free software;  for terms and warranty disclaimer see ./COPYING.
003:
004:        package gnu.bytecode;
005:
006:        import java.io.PrintWriter;
007:        import java.io.PrintStream;
008:
009:        /** This class prints out in contents of a ClassType in human-readable form.
010:         * The output format matches my earlier jcf-dump program (in gcc/java).
011:         * @author Per Bothner <bothner@cygnus>
012:         */
013:
014:        public class ClassTypeWriter extends PrintWriter {
015:            ClassType ctype;
016:            int flags;
017:            boolean printConstants = true;
018:
019:            public ClassTypeWriter(ClassType ctype, PrintWriter stream,
020:                    int flags) {
021:                super (stream);
022:                this .ctype = ctype;
023:                this .flags = flags;
024:            }
025:
026:            public ClassTypeWriter(ClassType ctype, PrintStream stream,
027:                    int flags) {
028:                super (stream);
029:                this .ctype = ctype;
030:                this .flags = flags;
031:            }
032:
033:            public static void print(ClassType ctype, PrintWriter stream,
034:                    int flags) {
035:                ClassTypeWriter writer = new ClassTypeWriter(ctype, stream,
036:                        flags);
037:                writer.print();
038:                writer.flush();
039:            }
040:
041:            public static void print(ClassType ctype, PrintStream stream,
042:                    int flags) {
043:                ClassTypeWriter writer = new ClassTypeWriter(ctype, stream,
044:                        flags);
045:                writer.print();
046:                writer.flush();
047:            }
048:
049:            public void print() {
050:                if (printConstants)
051:                    printConstantPool();
052:                printClassInfo();
053:                printFields();
054:                printMethods();
055:            }
056:
057:            public void printAttributes(AttrContainer container) {
058:                for (Attribute attr = container.getAttributes(); attr != null; attr = attr.next) {
059:                    attr.print(this );
060:                }
061:            }
062:
063:            public void printClassInfo() {
064:                println();
065:                print("Access flags:");
066:                int modifiers = ctype.getModifiers();
067:                print(Access.toString(modifiers, 'C'));
068:                println();
069:                print("This class: ");
070:                printOptionalIndex(ctype.this ClassIndex);
071:                printConstantTersely(ctype.this ClassIndex, 7);
072:                print(" super: ");
073:                if (ctype.super ClassIndex == -1)
074:                    print("<unknown>");
075:                else if (ctype.super ClassIndex == 0)
076:                    print("0");
077:                else {
078:                    printOptionalIndex(ctype.super ClassIndex);
079:                    printConstantTersely(ctype.super ClassIndex,
080:                            ConstantPool.CLASS);
081:                }
082:                println();
083:                print("Interfaces (count: ");
084:                int[] interfaces = ctype.interfaceIndexes;
085:                int n_interfaces = interfaces == null ? 0 : interfaces.length;
086:                print(n_interfaces);
087:                print("):");
088:                println();
089:                for (int i = 0; i < n_interfaces; i++) {
090:                    print("- Implements: ");
091:                    int index = interfaces[i];
092:                    printOptionalIndex(index);
093:                    printConstantTersely(index, 7);
094:                    println();
095:                }
096:            }
097:
098:            public void printFields() {
099:                println();
100:                print("Fields (count: ");
101:                print(ctype.fields_count);
102:                print("):");
103:                println();
104:                int ifield = 0;
105:                Field field = ctype.fields;
106:                for (; field != null; ifield++, field = field.next) {
107:                    print("Field name: ");
108:                    if (field.name_index != 0)
109:                        printOptionalIndex(field.name_index);
110:                    print(field.getName());
111:                    print(Access.toString(field.flags, 'F'));
112:                    print(" Signature: ");
113:                    if (field.signature_index != 0)
114:                        printOptionalIndex(field.signature_index);
115:                    printSignature(field.type);
116:                    println();
117:                    printAttributes(field);
118:                }
119:            }
120:
121:            public void printMethods() {
122:                println();
123:                print("Methods (count: ");
124:                print(ctype.methods_count);
125:                print("):");
126:                println();
127:                Method method = ctype.methods;
128:                for (; method != null; method = method.next) {
129:                    println();
130:                    print("Method name:");
131:                    if (method.name_index != 0)
132:                        printOptionalIndex(method.name_index);
133:                    print('\"');
134:                    print(method.getName());
135:                    print('\"');
136:                    print(Access.toString(method.access_flags, 'M'));
137:                    print(" Signature: ");
138:                    if (method.signature_index != 0)
139:                        printOptionalIndex(method.signature_index);
140:                    print('(');
141:                    for (int i = 0; i < method.arg_types.length; i++) {
142:                        if (i > 0)
143:                            print(',');
144:                        printSignature(method.arg_types[i]);
145:                    }
146:                    print(')');
147:                    printSignature(method.return_type);
148:                    println();
149:                    printAttributes(method);
150:                }
151:            }
152:
153:            final void printConstantTersely(int index, int expected_tag) {
154:                CpoolEntry[] pool = ctype.constants.pool;
155:                CpoolEntry entry;
156:                if (pool == null || index < 0 || index >= pool.length
157:                        || (entry = pool[index]) == null)
158:                    print("<invalid constant index>");
159:                else if (entry.getTag() != expected_tag) {
160:                    print("<unexpected constant type ");
161:                    entry.print(this , 1);
162:                    print('>');
163:                } else
164:                    entry.print(this , 0);
165:            }
166:
167:            /** Print constant pool index for dis-assembler. */
168:            final void printConstantOperand(int index) {
169:                print(' ');
170:                if (printConstants) {
171:                    print('#');
172:                    print(index);
173:                    print('=');
174:                }
175:                CpoolEntry[] pool = ctype.constants.pool;
176:                CpoolEntry entry;
177:                if (pool == null || index < 0 || index >= pool.length
178:                        || (entry = pool[index]) == null)
179:                    print("<invalid constant index>");
180:                else {
181:                    print('<');
182:                    entry.print(this , 1);
183:                    print('>');
184:                }
185:            }
186:
187:            public final void printQuotedString(String string) {
188:                print('\"');
189:                int len = string.length();
190:                for (int i = 0; i < len; i++) {
191:                    char ch = string.charAt(i);
192:                    if (ch == '\"')
193:                        print("\\\"");
194:                    else if (ch >= ' ' && ch < 127)
195:                        print(ch);
196:                    else if (ch == '\n')
197:                        print("\\n");
198:                    else {
199:                        print("\\u");
200:                        for (int j = 4; --j >= 0;)
201:                            print(Character.forDigit((ch >> (j * 4)) & 15, 16));
202:                    }
203:                }
204:                print('\"');
205:            }
206:
207:            public void printConstantPool() {
208:                CpoolEntry[] pool = ctype.constants.pool;
209:                int length = ctype.constants.count;
210:                for (int i = 1; i <= length; i++) {
211:                    CpoolEntry entry = pool[i];
212:                    if (entry == null)
213:                        continue;
214:                    print('#');
215:                    print(entry.index);
216:                    print(": ");
217:                    entry.print(this , 2);
218:                    println();
219:                }
220:            }
221:
222:            public final void printOptionalIndex(int index) {
223:                if (printConstants) {
224:                    print(index);
225:                    print('=');
226:                }
227:            }
228:
229:            public final void printOptionalIndex(CpoolEntry entry) {
230:                printOptionalIndex(entry.index);
231:            }
232:
233:            void printName(String name) {
234:                // in jcf-dump:  jcf_print_utf8
235:                print(name);
236:            }
237:
238:            /** Print in Java source form one type from a signature string.
239:             * @param sig the signature string to print
240:             * @param pos the index in sig to start with
241:             * @return the index following the signature of one type. */
242:            public final int printSignature(String sig, int pos) {
243:                int len = sig.length();
244:                if (pos >= len) {
245:                    print("<empty signature>");
246:                    return pos;
247:                }
248:                int sig_length = Type.signatureLength(sig, pos);
249:                if (sig_length > 0) {
250:                    String name = Type.signatureToName(sig.substring(pos, pos
251:                            + sig_length));
252:                    if (name != null) {
253:                        print(name);
254:                        return pos + sig_length;
255:                    }
256:                }
257:                char c = sig.charAt(pos);
258:                if (c != '(') {
259:                    print(c);
260:                    return pos + 1;
261:                }
262:                int nargs = 0;
263:                pos++;
264:                print(c);
265:                for (;;) {
266:                    if (pos >= len) {
267:                        print("<truncated method signature>");
268:                        return pos;
269:                    }
270:                    c = sig.charAt(pos);
271:                    if (c == ')') {
272:                        pos++;
273:                        print(c);
274:                        break;
275:                    }
276:                    if (nargs++ > 0)
277:                        print(',');
278:                    pos = printSignature(sig, pos);
279:                }
280:                return printSignature(sig, pos);
281:
282:                /*
283:                char c = sig.charAt(pos);
284:                Type type = Type.signatureToPrimitive(c);
285:                if (type != null)
286:                  {
287:                print(Type.getName());
288:                return pos+1;
289:                  }
290:                switch (c)
291:                  {
292:                  case 'L':
293:                for (;;)
294:                  {
295:                    pos++;
296:                    if (pos >= len)
297:                      {
298:                	print("<truncated object signature>");
299:                	return pos;
300:                      }
301:                    c = sig.charAt(pos);
302:                    if (c == ';')
303:                      return pos+1;
304:                    print(c == '/' ? '.' : c);
305:                  }
306:
307:                  case '[':
308:                pos = printSignature(sig, pos+1);
309:                print("[]");
310:                return pos;
311:
312:                  case '(':
313:                int nargs = 0;
314:                pos++;
315:                print(c);
316:                for (;;)
317:                  {
318:                    if (pos >= len)
319:                      {
320:                	print("<truncated method signature>");
321:                	return pos;
322:                      }
323:                    c = sig.charAt(pos);
324:                    if (c == ')')
325:                      {
326:                	pos++;
327:                	print(c);
328:                	break;
329:                      }
330:                    if (nargs > 0)
331:                      print(',');
332:                    pos = printSignature(sig, pos);
333:                  }
334:                return printSignature(sig, pos);
335:
336:                  default:   print(c); return pos+1;
337:                  }
338:                 */
339:            }
340:
341:            /** Print a signature string  in Java source.
342:             * @param sig the signature string to print */
343:            public final void printSignature(String sig) {
344:                int pos = printSignature(sig, 0);
345:                int len = sig.length();
346:                if (pos < len) {
347:                    print("<trailing junk:");
348:                    print(sig.substring(pos));
349:                    print('>');
350:                }
351:            }
352:
353:            public final void printSignature(Type type) {
354:                if (type == null)
355:                    print("<unknown type>");
356:                else
357:                    printSignature(type.getSignature());
358:            }
359:        }
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.