|
0
|
1 /*
|
|
|
2 * Copyright 2000-2005 Sun Microsystems, Inc. All Rights Reserved.
|
|
|
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
|
4 *
|
|
|
5 * This code is free software; you can redistribute it and/or modify it
|
|
|
6 * under the terms of the GNU General Public License version 2 only, as
|
|
|
7 * published by the Free Software Foundation.
|
|
|
8 *
|
|
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT
|
|
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
12 * version 2 for more details (a copy is included in the LICENSE file that
|
|
|
13 * accompanied this code).
|
|
|
14 *
|
|
|
15 * You should have received a copy of the GNU General Public License version
|
|
|
16 * 2 along with this work; if not, write to the Free Software Foundation,
|
|
|
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
18 *
|
|
|
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or
|
|
|
21 * have any questions.
|
|
|
22 *
|
|
|
23 */
|
|
|
24
|
|
|
25 package sun.jvm.hotspot.oops;
|
|
|
26
|
|
|
27 import java.io.*;
|
|
|
28 import java.util.*;
|
|
|
29 import sun.jvm.hotspot.debugger.*;
|
|
|
30 import sun.jvm.hotspot.runtime.*;
|
|
|
31 import sun.jvm.hotspot.types.*;
|
|
|
32 import sun.jvm.hotspot.utilities.*;
|
|
|
33
|
|
|
34 // A ConstantPool is an array containing class constants
|
|
|
35 // as described in the class file
|
|
|
36
|
|
|
37 public class ConstantPool extends Array implements ClassConstants {
|
|
|
38 // Used for debugging this code
|
|
|
39 private static final boolean DEBUG = false;
|
|
|
40
|
|
|
41 protected void debugMessage(String message) {
|
|
|
42 System.out.println(message);
|
|
|
43 }
|
|
|
44
|
|
|
45 static {
|
|
|
46 VM.registerVMInitializedObserver(new Observer() {
|
|
|
47 public void update(Observable o, Object data) {
|
|
|
48 initialize(VM.getVM().getTypeDataBase());
|
|
|
49 }
|
|
|
50 });
|
|
|
51 }
|
|
|
52
|
|
|
53 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
|
|
|
54 Type type = db.lookupType("constantPoolOopDesc");
|
|
|
55 tags = new OopField(type.getOopField("_tags"), 0);
|
|
|
56 cache = new OopField(type.getOopField("_cache"), 0);
|
|
|
57 poolHolder = new OopField(type.getOopField("_pool_holder"), 0);
|
|
|
58 headerSize = type.getSize();
|
|
|
59 elementSize = db.getOopSize();
|
|
|
60 }
|
|
|
61
|
|
|
62 ConstantPool(OopHandle handle, ObjectHeap heap) {
|
|
|
63 super(handle, heap);
|
|
|
64 }
|
|
|
65
|
|
|
66 public boolean isConstantPool() { return true; }
|
|
|
67
|
|
|
68 private static OopField tags;
|
|
|
69 private static OopField cache;
|
|
|
70 private static OopField poolHolder;
|
|
|
71
|
|
|
72
|
|
|
73 private static long headerSize;
|
|
|
74 private static long elementSize;
|
|
|
75
|
|
|
76 public TypeArray getTags() { return (TypeArray) tags.getValue(this); }
|
|
|
77 public ConstantPoolCache getCache() { return (ConstantPoolCache) cache.getValue(this); }
|
|
|
78 public Klass getPoolHolder() { return (Klass) poolHolder.getValue(this); }
|
|
|
79
|
|
|
80 private long indexOffset(long index) {
|
|
|
81 if (Assert.ASSERTS_ENABLED) {
|
|
|
82 Assert.that(index > 0 && index < getLength(), "invalid cp index");
|
|
|
83 }
|
|
|
84 return (index * elementSize) + headerSize;
|
|
|
85 }
|
|
|
86
|
|
|
87 public ConstantTag getTagAt(long index) {
|
|
|
88 return new ConstantTag(getTags().getByteAt((int) index));
|
|
|
89 }
|
|
|
90
|
|
|
91 public Oop getObjAt(long index){
|
|
|
92 return getHeap().newOop(getHandle().getOopHandleAt(indexOffset(index)));
|
|
|
93 }
|
|
|
94
|
|
|
95 public Symbol getSymbolAt(long index) {
|
|
|
96 return (Symbol) getObjAt(index);
|
|
|
97 }
|
|
|
98
|
|
|
99 public int getIntAt(long index){
|
|
|
100 return getHandle().getJIntAt(indexOffset(index));
|
|
|
101 }
|
|
|
102
|
|
|
103 public float getFloatAt(long index){
|
|
|
104 return getHandle().getJFloatAt(indexOffset(index));
|
|
|
105 }
|
|
|
106
|
|
|
107 public long getLongAt(long index) {
|
|
|
108 int oneHalf = getHandle().getJIntAt(indexOffset(index + 1));
|
|
|
109 int otherHalf = getHandle().getJIntAt(indexOffset(index));
|
|
|
110 // buildLongFromIntsPD accepts higher address value, lower address value
|
|
|
111 // in that order.
|
|
|
112 return VM.getVM().buildLongFromIntsPD(oneHalf, otherHalf);
|
|
|
113 }
|
|
|
114
|
|
|
115 public double getDoubleAt(long index) {
|
|
|
116 return Double.longBitsToDouble(getLongAt(index));
|
|
|
117 }
|
|
|
118
|
|
|
119 public int getFieldOrMethodAt(int which) {
|
|
|
120 if (DEBUG) {
|
|
|
121 System.err.print("ConstantPool.getFieldOrMethodAt(" + which + "): new index = ");
|
|
|
122 }
|
|
|
123 int i = -1;
|
|
|
124 ConstantPoolCache cache = getCache();
|
|
|
125 if (cache == null) {
|
|
|
126 i = which;
|
|
|
127 } else {
|
|
|
128 // change byte-ordering and go via cache
|
|
|
129 i = cache.getEntryAt(0xFFFF & VM.getVM().getBytes().swapShort((short) which)).getConstantPoolIndex();
|
|
|
130 }
|
|
|
131 if (Assert.ASSERTS_ENABLED) {
|
|
|
132 Assert.that(getTagAt(i).isFieldOrMethod(), "Corrupted constant pool");
|
|
|
133 }
|
|
|
134 if (DEBUG) {
|
|
|
135 System.err.println(i);
|
|
|
136 }
|
|
|
137 int res = getIntAt(i);
|
|
|
138 if (DEBUG) {
|
|
|
139 System.err.println("ConstantPool.getFieldOrMethodAt(" + i + "): result = " + res);
|
|
|
140 }
|
|
|
141 return res;
|
|
|
142 }
|
|
|
143
|
|
|
144 public int getNameAndTypeAt(int which) {
|
|
|
145 if (Assert.ASSERTS_ENABLED) {
|
|
|
146 Assert.that(getTagAt(which).isNameAndType(), "Corrupted constant pool");
|
|
|
147 }
|
|
|
148 int i = getIntAt(which);
|
|
|
149 if (DEBUG) {
|
|
|
150 System.err.println("ConstantPool.getNameAndTypeAt(" + which + "): result = " + i);
|
|
|
151 }
|
|
|
152 return i;
|
|
|
153 }
|
|
|
154
|
|
|
155 public Symbol getNameRefAt(int which) {
|
|
|
156 int refIndex = getNameAndTypeAt(getNameAndTypeRefIndexAt(which));
|
|
|
157 int nameIndex = extractLowShortFromInt(refIndex);
|
|
|
158 return getSymbolAt(nameIndex);
|
|
|
159 }
|
|
|
160
|
|
|
161 public Symbol getSignatureRefAt(int which) {
|
|
|
162 int refIndex = getNameAndTypeAt(getNameAndTypeRefIndexAt(which));
|
|
|
163 int sigIndex = extractHighShortFromInt(refIndex);
|
|
|
164 return getSymbolAt(sigIndex);
|
|
|
165 }
|
|
|
166
|
|
|
167 // returns null, if not resolved.
|
|
|
168 public Klass getKlassRefAt(int which) {
|
|
|
169 if( ! getTagAt(which).isKlass()) return null;
|
|
|
170 return (Klass) getObjAt(which);
|
|
|
171 }
|
|
|
172
|
|
|
173 // returns null, if not resolved.
|
|
|
174 public InstanceKlass getFieldOrMethodKlassRefAt(int which) {
|
|
|
175 int refIndex = getFieldOrMethodAt(which);
|
|
|
176 int klassIndex = extractLowShortFromInt(refIndex);
|
|
|
177 return (InstanceKlass) getKlassRefAt(klassIndex);
|
|
|
178 }
|
|
|
179
|
|
|
180 // returns null, if not resolved.
|
|
|
181 public Method getMethodRefAt(int which) {
|
|
|
182 InstanceKlass klass = getFieldOrMethodKlassRefAt(which);
|
|
|
183 if (klass == null) return null;
|
|
|
184 Symbol name = getNameRefAt(which);
|
|
|
185 Symbol sig = getSignatureRefAt(which);
|
|
|
186 return klass.findMethod(name, sig);
|
|
|
187 }
|
|
|
188
|
|
|
189 // returns null, if not resolved.
|
|
|
190 public Field getFieldRefAt(int which) {
|
|
|
191 InstanceKlass klass = getFieldOrMethodKlassRefAt(which);
|
|
|
192 if (klass == null) return null;
|
|
|
193 Symbol name = getNameRefAt(which);
|
|
|
194 Symbol sig = getSignatureRefAt(which);
|
|
|
195 return klass.findField(name, sig);
|
|
|
196 }
|
|
|
197
|
|
|
198 public int getNameAndTypeRefIndexAt(int index) {
|
|
|
199 int refIndex = getFieldOrMethodAt(index);
|
|
|
200 if (DEBUG) {
|
|
|
201 System.err.println("ConstantPool.getNameAndTypeRefIndexAt(" + index + "): refIndex = " + refIndex);
|
|
|
202 }
|
|
|
203 int i = extractHighShortFromInt(refIndex);
|
|
|
204 if (DEBUG) {
|
|
|
205 System.err.println("ConstantPool.getNameAndTypeRefIndexAt(" + index + "): result = " + i);
|
|
|
206 }
|
|
|
207 return i;
|
|
|
208 }
|
|
|
209
|
|
|
210 /** Lookup for entries consisting of (name_index, signature_index) */
|
|
|
211 public int getNameRefIndexAt(int index) {
|
|
|
212 int refIndex = getNameAndTypeAt(index);
|
|
|
213 if (DEBUG) {
|
|
|
214 System.err.println("ConstantPool.getNameRefIndexAt(" + index + "): refIndex = " + refIndex);
|
|
|
215 }
|
|
|
216 int i = extractLowShortFromInt(refIndex);
|
|
|
217 if (DEBUG) {
|
|
|
218 System.err.println("ConstantPool.getNameRefIndexAt(" + index + "): result = " + i);
|
|
|
219 }
|
|
|
220 return i;
|
|
|
221 }
|
|
|
222
|
|
|
223 /** Lookup for entries consisting of (name_index, signature_index) */
|
|
|
224 public int getSignatureRefIndexAt(int index) {
|
|
|
225 int refIndex = getNameAndTypeAt(index);
|
|
|
226 if (DEBUG) {
|
|
|
227 System.err.println("ConstantPool.getSignatureRefIndexAt(" + index + "): refIndex = " + refIndex);
|
|
|
228 }
|
|
|
229 int i = extractHighShortFromInt(refIndex);
|
|
|
230 if (DEBUG) {
|
|
|
231 System.err.println("ConstantPool.getSignatureRefIndexAt(" + index + "): result = " + i);
|
|
|
232 }
|
|
|
233 return i;
|
|
|
234 }
|
|
|
235
|
|
|
236 final private static String[] nameForTag = new String[] {
|
|
|
237 };
|
|
|
238
|
|
|
239 private String nameForTag(int tag) {
|
|
|
240 switch (tag) {
|
|
|
241 case JVM_CONSTANT_Utf8: return "JVM_CONSTANT_Utf8";
|
|
|
242 case JVM_CONSTANT_Unicode: return "JVM_CONSTANT_Unicode";
|
|
|
243 case JVM_CONSTANT_Integer: return "JVM_CONSTANT_Integer";
|
|
|
244 case JVM_CONSTANT_Float: return "JVM_CONSTANT_Float";
|
|
|
245 case JVM_CONSTANT_Long: return "JVM_CONSTANT_Long";
|
|
|
246 case JVM_CONSTANT_Double: return "JVM_CONSTANT_Double";
|
|
|
247 case JVM_CONSTANT_Class: return "JVM_CONSTANT_Class";
|
|
|
248 case JVM_CONSTANT_String: return "JVM_CONSTANT_String";
|
|
|
249 case JVM_CONSTANT_Fieldref: return "JVM_CONSTANT_Fieldref";
|
|
|
250 case JVM_CONSTANT_Methodref: return "JVM_CONSTANT_Methodref";
|
|
|
251 case JVM_CONSTANT_InterfaceMethodref: return "JVM_CONSTANT_InterfaceMethodref";
|
|
|
252 case JVM_CONSTANT_NameAndType: return "JVM_CONSTANT_NameAndType";
|
|
|
253 case JVM_CONSTANT_Invalid: return "JVM_CONSTANT_Invalid";
|
|
|
254 case JVM_CONSTANT_UnresolvedClass: return "JVM_CONSTANT_UnresolvedClass";
|
|
|
255 case JVM_CONSTANT_ClassIndex: return "JVM_CONSTANT_ClassIndex";
|
|
|
256 case JVM_CONSTANT_UnresolvedString: return "JVM_CONSTANT_UnresolvedString";
|
|
|
257 case JVM_CONSTANT_StringIndex: return "JVM_CONSTANT_StringIndex";
|
|
|
258 }
|
|
|
259 throw new InternalError("unknown tag");
|
|
|
260 }
|
|
|
261
|
|
|
262 public void iterateFields(OopVisitor visitor, boolean doVMFields) {
|
|
|
263 super.iterateFields(visitor, doVMFields);
|
|
|
264 if (doVMFields) {
|
|
|
265 visitor.doOop(tags, true);
|
|
|
266 visitor.doOop(cache, true);
|
|
|
267 visitor.doOop(poolHolder, true);
|
|
|
268
|
|
|
269 final int length = (int) getLength();
|
|
|
270 // zero'th pool entry is always invalid. ignore it.
|
|
|
271 for (int index = 1; index < length; index++) {
|
|
|
272 int ctag = (int) getTags().getByteAt((int) index);
|
|
|
273 switch (ctag) {
|
|
|
274 case JVM_CONSTANT_ClassIndex:
|
|
|
275 case JVM_CONSTANT_StringIndex:
|
|
|
276 case JVM_CONSTANT_Integer:
|
|
|
277 visitor.doInt(new IntField(new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true), true);
|
|
|
278 break;
|
|
|
279
|
|
|
280 case JVM_CONSTANT_Float:
|
|
|
281 visitor.doFloat(new FloatField(new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true), true);
|
|
|
282 break;
|
|
|
283
|
|
|
284 case JVM_CONSTANT_Long:
|
|
|
285 visitor.doLong(new LongField(new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true), true);
|
|
|
286 // long entries occupy two slots
|
|
|
287 index++;
|
|
|
288 break;
|
|
|
289
|
|
|
290 case JVM_CONSTANT_Double:
|
|
|
291 visitor.doDouble(new DoubleField(new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true), true);
|
|
|
292 // double entries occupy two slots
|
|
|
293 index++;
|
|
|
294 break;
|
|
|
295
|
|
|
296 case JVM_CONSTANT_UnresolvedClass:
|
|
|
297 case JVM_CONSTANT_Class:
|
|
|
298 case JVM_CONSTANT_UnresolvedString:
|
|
|
299 case JVM_CONSTANT_Utf8:
|
|
|
300 visitor.doOop(new OopField(new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true), true);
|
|
|
301 break;
|
|
|
302
|
|
|
303 case JVM_CONSTANT_Fieldref:
|
|
|
304 case JVM_CONSTANT_Methodref:
|
|
|
305 case JVM_CONSTANT_InterfaceMethodref:
|
|
|
306 case JVM_CONSTANT_NameAndType:
|
|
|
307 visitor.doInt(new IntField(new NamedFieldIdentifier(nameForTag(ctag)), indexOffset(index), true), true);
|
|
|
308 break;
|
|
|
309 }
|
|
|
310 }
|
|
|
311 }
|
|
|
312 /*
|
|
|
313 int length = getLength();
|
|
|
314 for (int index = 0; index < length; index++) {
|
|
|
315 long offset = baseOffset + (index + typeDataBase.getOopSize());
|
|
|
316 visitor.doOop(new IndexableField(index, offset, false), getObjAt(index));
|
|
|
317 }
|
|
|
318 */
|
|
|
319 }
|
|
|
320
|
|
|
321 public void writeBytes(OutputStream os) throws IOException {
|
|
|
322 // Map between any modified UTF-8 and it's constant pool index.
|
|
|
323 Map utf8ToIndex = new HashMap();
|
|
|
324 DataOutputStream dos = new DataOutputStream(os);
|
|
|
325 TypeArray tags = getTags();
|
|
|
326 int len = (int)getLength();
|
|
|
327 int ci = 0; // constant pool index
|
|
|
328
|
|
|
329 // collect all modified UTF-8 Strings from Constant Pool
|
|
|
330
|
|
|
331 for (ci = 1; ci < len; ci++) {
|
|
|
332 byte cpConstType = tags.getByteAt(ci);
|
|
|
333 if(cpConstType == JVM_CONSTANT_Utf8) {
|
|
|
334 Symbol sym = getSymbolAt(ci);
|
|
|
335 utf8ToIndex.put(sym.asString(), new Short((short) ci));
|
|
|
336 }
|
|
|
337 else if(cpConstType == JVM_CONSTANT_Long ||
|
|
|
338 cpConstType == JVM_CONSTANT_Double) {
|
|
|
339 ci++;
|
|
|
340 }
|
|
|
341 }
|
|
|
342
|
|
|
343
|
|
|
344 for(ci = 1; ci < len; ci++) {
|
|
|
345 int cpConstType = (int)tags.getByteAt(ci);
|
|
|
346 // write cp_info
|
|
|
347 // write constant type
|
|
|
348 switch(cpConstType) {
|
|
|
349 case JVM_CONSTANT_Utf8: {
|
|
|
350 dos.writeByte(cpConstType);
|
|
|
351 Symbol sym = getSymbolAt(ci);
|
|
|
352 dos.writeShort((short)sym.getLength());
|
|
|
353 dos.write(sym.asByteArray());
|
|
|
354 if (DEBUG) debugMessage("CP[" + ci + "] = modified UTF-8 " + sym.asString());
|
|
|
355 break;
|
|
|
356 }
|
|
|
357
|
|
|
358 case JVM_CONSTANT_Unicode:
|
|
|
359 throw new IllegalArgumentException("Unicode constant!");
|
|
|
360
|
|
|
361 case JVM_CONSTANT_Integer:
|
|
|
362 dos.writeByte(cpConstType);
|
|
|
363 dos.writeInt(getIntAt(ci));
|
|
|
364 if (DEBUG) debugMessage("CP[" + ci + "] = int " + getIntAt(ci));
|
|
|
365 break;
|
|
|
366
|
|
|
367 case JVM_CONSTANT_Float:
|
|
|
368 dos.writeByte(cpConstType);
|
|
|
369 dos.writeFloat(getFloatAt(ci));
|
|
|
370 if (DEBUG) debugMessage("CP[" + ci + "] = float " + getFloatAt(ci));
|
|
|
371 break;
|
|
|
372
|
|
|
373 case JVM_CONSTANT_Long: {
|
|
|
374 dos.writeByte(cpConstType);
|
|
|
375 long l = getLongAt(ci);
|
|
|
376 // long entries occupy two pool entries
|
|
|
377 ci++;
|
|
|
378 dos.writeLong(l);
|
|
|
379 break;
|
|
|
380 }
|
|
|
381
|
|
|
382 case JVM_CONSTANT_Double:
|
|
|
383 dos.writeByte(cpConstType);
|
|
|
384 dos.writeDouble(getDoubleAt(ci));
|
|
|
385 // double entries occupy two pool entries
|
|
|
386 ci++;
|
|
|
387 break;
|
|
|
388
|
|
|
389 case JVM_CONSTANT_Class: {
|
|
|
390 dos.writeByte(cpConstType);
|
|
|
391 // Klass already resolved. ConstantPool constains klassOop.
|
|
|
392 Klass refKls = (Klass) getObjAt(ci);
|
|
|
393 String klassName = refKls.getName().asString();
|
|
|
394 Short s = (Short) utf8ToIndex.get(klassName);
|
|
|
395 dos.writeShort(s.shortValue());
|
|
|
396 if (DEBUG) debugMessage("CP[" + ci + "] = class " + s);
|
|
|
397 break;
|
|
|
398 }
|
|
|
399
|
|
|
400 // case JVM_CONSTANT_ClassIndex:
|
|
|
401 case JVM_CONSTANT_UnresolvedClass: {
|
|
|
402 dos.writeByte(JVM_CONSTANT_Class);
|
|
|
403 String klassName = getSymbolAt(ci).asString();
|
|
|
404 Short s = (Short) utf8ToIndex.get(klassName);
|
|
|
405 dos.writeShort(s.shortValue());
|
|
|
406 if (DEBUG) debugMessage("CP[" + ci + "] = class " + s);
|
|
|
407 break;
|
|
|
408 }
|
|
|
409
|
|
|
410 case JVM_CONSTANT_String: {
|
|
|
411 dos.writeByte(cpConstType);
|
|
|
412 String str = OopUtilities.stringOopToString(getObjAt(ci));
|
|
|
413 Short s = (Short) utf8ToIndex.get(str);
|
|
|
414 dos.writeShort(s.shortValue());
|
|
|
415 if (DEBUG) debugMessage("CP[" + ci + "] = string " + s);
|
|
|
416 break;
|
|
|
417 }
|
|
|
418
|
|
|
419 // case JVM_CONSTANT_StringIndex:
|
|
|
420 case JVM_CONSTANT_UnresolvedString: {
|
|
|
421 dos.writeByte(JVM_CONSTANT_String);
|
|
|
422 String val = getSymbolAt(ci).asString();
|
|
|
423
|
|
|
424 Short s = (Short) utf8ToIndex.get(val);
|
|
|
425 dos.writeShort(s.shortValue());
|
|
|
426 if (DEBUG) debugMessage("CP[" + ci + "] = string " + s);
|
|
|
427 break;
|
|
|
428 }
|
|
|
429
|
|
|
430 // all external, internal method/field references
|
|
|
431 case JVM_CONSTANT_Fieldref:
|
|
|
432 case JVM_CONSTANT_Methodref:
|
|
|
433 case JVM_CONSTANT_InterfaceMethodref: {
|
|
|
434 dos.writeByte(cpConstType);
|
|
|
435 int value = getIntAt(ci);
|
|
|
436 short klassIndex = (short) extractLowShortFromInt(value);
|
|
|
437 short nameAndTypeIndex = (short) extractHighShortFromInt(value);
|
|
|
438 dos.writeShort(klassIndex);
|
|
|
439 dos.writeShort(nameAndTypeIndex);
|
|
|
440 if (DEBUG) debugMessage("CP[" + ci + "] = ref klass = " +
|
|
|
441 klassIndex + ", N&T = " + nameAndTypeIndex);
|
|
|
442 break;
|
|
|
443 }
|
|
|
444
|
|
|
445 case JVM_CONSTANT_NameAndType: {
|
|
|
446 dos.writeByte(cpConstType);
|
|
|
447 int value = getIntAt(ci);
|
|
|
448 short nameIndex = (short) extractLowShortFromInt(value);
|
|
|
449 short signatureIndex = (short) extractHighShortFromInt(value);
|
|
|
450 dos.writeShort(nameIndex);
|
|
|
451 dos.writeShort(signatureIndex);
|
|
|
452 if (DEBUG) debugMessage("CP[" + ci + "] = N&T name = " + nameIndex
|
|
|
453 + ", type = " + signatureIndex);
|
|
|
454 break;
|
|
|
455 }
|
|
|
456 } // switch
|
|
|
457 }
|
|
|
458 dos.flush();
|
|
|
459 return;
|
|
|
460 }
|
|
|
461
|
|
|
462 public void printValueOn(PrintStream tty) {
|
|
|
463 tty.print("ConstantPool for " + getPoolHolder().getName().asString());
|
|
|
464 }
|
|
|
465
|
|
|
466 public long getObjectSize() {
|
|
|
467 return alignObjectSize(headerSize + (getLength() * elementSize));
|
|
|
468 }
|
|
|
469
|
|
|
470 //----------------------------------------------------------------------
|
|
|
471 // Internals only below this point
|
|
|
472 //
|
|
|
473
|
|
|
474 private static int extractHighShortFromInt(int val) {
|
|
|
475 return (val >> 16) & 0xFFFF;
|
|
|
476 }
|
|
|
477
|
|
|
478 private static int extractLowShortFromInt(int val) {
|
|
|
479 return val & 0xFFFF;
|
|
|
480 }
|
|
|
481 }
|
