Source Code Cross Referenced for ProgramClassWriter.java in  » Development » proguard » proguard » classfile » io » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Development » proguard » proguard.classfile.io 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * ProGuard -- shrinking, optimization, obfuscation, and preverification
003:         *             of Java bytecode.
004:         *
005:         * Copyright (c) 2002-2007 Eric Lafortune (eric@graphics.cornell.edu)
006:         *
007:         * This program is free software; you can redistribute it and/or modify it
008:         * under the terms of the GNU General Public License as published by the Free
009:         * Software Foundation; either version 2 of the License, or (at your option)
010:         * any later version.
011:         *
012:         * This program is distributed in the hope that it will be useful, but WITHOUT
013:         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014:         * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
015:         * more details.
016:         *
017:         * You should have received a copy of the GNU General Public License along
018:         * with this program; if not, write to the Free Software Foundation, Inc.,
019:         * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020:         */
021:        package proguard.classfile.io;
022:
023:        import proguard.classfile.*;
024:        import proguard.classfile.attribute.*;
025:        import proguard.classfile.attribute.annotation.*;
026:        import proguard.classfile.attribute.annotation.visitor.*;
027:        import proguard.classfile.attribute.preverification.*;
028:        import proguard.classfile.attribute.preverification.visitor.*;
029:        import proguard.classfile.attribute.visitor.*;
030:        import proguard.classfile.constant.*;
031:        import proguard.classfile.constant.visitor.ConstantVisitor;
032:        import proguard.classfile.util.*;
033:        import proguard.classfile.visitor.*;
034:
035:        import java.io.*;
036:
037:        /**
038:         * This ClassVisitor writes out the ProgramClass objects that it visits to the
039:         * given DataOutput object.
040:         *
041:         * @author Eric Lafortune
042:         */
043:        public class ProgramClassWriter extends SimplifiedVisitor implements 
044:                ClassVisitor, MemberVisitor, ConstantVisitor, AttributeVisitor {
045:            private RuntimeDataOutput dataOutput;
046:
047:            private final ConstantBodyWriter constantBodyWriter = new ConstantBodyWriter();
048:            private final AttributeBodyWriter attributeBodyWriter = new AttributeBodyWriter();
049:            private final StackMapFrameBodyWriter stackMapFrameBodyWriter = new StackMapFrameBodyWriter();
050:            private final VerificationTypeBodyWriter verificationTypeBodyWriter = new VerificationTypeBodyWriter();
051:            private final ElementValueBodyWriter elementValueBodyWriter = new ElementValueBodyWriter();
052:
053:            /**
054:             * Creates a new ProgramClassWriter for reading from the given DataOutput.
055:             */
056:            public ProgramClassWriter(DataOutput dataOutput) {
057:                this .dataOutput = new RuntimeDataOutput(dataOutput);
058:            }
059:
060:            // Implementations for ClassVisitor.
061:
062:            public void visitProgramClass(ProgramClass programClass) {
063:                // Write the magic number.
064:                dataOutput.writeInt(programClass.u4magic);
065:
066:                // Write the version numbers.
067:                dataOutput.writeShort(ClassUtil
068:                        .internalMinorClassVersion(programClass.u4version));
069:                dataOutput.writeShort(ClassUtil
070:                        .internalMajorClassVersion(programClass.u4version));
071:
072:                // Write the constant pool.
073:                dataOutput.writeShort(programClass.u2constantPoolCount);
074:
075:                programClass.constantPoolEntriesAccept(this );
076:
077:                // Write the general class information.
078:                dataOutput.writeShort(programClass.u2accessFlags);
079:                dataOutput.writeShort(programClass.u2this Class);
080:                dataOutput.writeShort(programClass.u2super Class);
081:
082:                // Write the interfaces.
083:                dataOutput.writeShort(programClass.u2interfacesCount);
084:
085:                for (int index = 0; index < programClass.u2interfacesCount; index++) {
086:                    dataOutput.writeShort(programClass.u2interfaces[index]);
087:                }
088:
089:                // Write the fields.
090:                dataOutput.writeShort(programClass.u2fieldsCount);
091:
092:                programClass.fieldsAccept(this );
093:
094:                // Write the methods.
095:                dataOutput.writeShort(programClass.u2methodsCount);
096:
097:                programClass.methodsAccept(this );
098:
099:                // Write the class attributes.
100:                dataOutput.writeShort(programClass.u2attributesCount);
101:
102:                programClass.attributesAccept(this );
103:            }
104:
105:            public void visitLibraryClass(LibraryClass libraryClass) {
106:            }
107:
108:            // Implementations for MemberVisitor.
109:
110:            public void visitProgramField(ProgramClass programClass,
111:                    ProgramField programField) {
112:                // Write the general field information.
113:                dataOutput.writeShort(programField.u2accessFlags);
114:                dataOutput.writeShort(programField.u2nameIndex);
115:                dataOutput.writeShort(programField.u2descriptorIndex);
116:
117:                // Write the field attributes.
118:                dataOutput.writeShort(programField.u2attributesCount);
119:
120:                programField.attributesAccept(programClass, this );
121:            }
122:
123:            public void visitProgramMethod(ProgramClass programClass,
124:                    ProgramMethod programMethod) {
125:                // Write the general method information.
126:                dataOutput.writeShort(programMethod.u2accessFlags);
127:                dataOutput.writeShort(programMethod.u2nameIndex);
128:                dataOutput.writeShort(programMethod.u2descriptorIndex);
129:
130:                // Write the method attributes.
131:                dataOutput.writeShort(programMethod.u2attributesCount);
132:
133:                programMethod.attributesAccept(programClass, this );
134:            }
135:
136:            public void visitLibraryMember(LibraryClass libraryClass,
137:                    LibraryMember libraryMember) {
138:            }
139:
140:            // Implementations for ConstantVisitor.
141:
142:            public void visitAnyConstant(Clazz clazz, Constant constant) {
143:                // Write the tag.
144:                dataOutput.writeByte(constant.getTag());
145:
146:                // Write the actual body.
147:                constant.accept(clazz, constantBodyWriter);
148:            }
149:
150:            private class ConstantBodyWriter extends SimplifiedVisitor
151:                    implements  ConstantVisitor {
152:                // Implementations for ConstantVisitor.
153:
154:                public void visitIntegerConstant(Clazz clazz,
155:                        IntegerConstant integerConstant) {
156:                    dataOutput.writeInt(integerConstant.u4value);
157:                }
158:
159:                public void visitLongConstant(Clazz clazz,
160:                        LongConstant longConstant) {
161:                    dataOutput.writeLong(longConstant.u8value);
162:                }
163:
164:                public void visitFloatConstant(Clazz clazz,
165:                        FloatConstant floatConstant) {
166:                    dataOutput.writeFloat(floatConstant.f4value);
167:                }
168:
169:                public void visitDoubleConstant(Clazz clazz,
170:                        DoubleConstant doubleConstant) {
171:                    dataOutput.writeDouble(doubleConstant.f8value);
172:                }
173:
174:                public void visitStringConstant(Clazz clazz,
175:                        StringConstant stringConstant) {
176:                    dataOutput.writeShort(stringConstant.u2stringIndex);
177:                }
178:
179:                public void visitUtf8Constant(Clazz clazz,
180:                        Utf8Constant utf8Constant) {
181:                    byte[] bytes = utf8Constant.getBytes();
182:
183:                    dataOutput.writeShort(bytes.length);
184:                    dataOutput.write(bytes);
185:                }
186:
187:                public void visitAnyRefConstant(Clazz clazz,
188:                        RefConstant refConstant) {
189:                    dataOutput.writeShort(refConstant.u2classIndex);
190:                    dataOutput.writeShort(refConstant.u2nameAndTypeIndex);
191:                }
192:
193:                public void visitClassConstant(Clazz clazz,
194:                        ClassConstant classConstant) {
195:                    dataOutput.writeShort(classConstant.u2nameIndex);
196:                }
197:
198:                public void visitNameAndTypeConstant(Clazz clazz,
199:                        NameAndTypeConstant nameAndTypeConstant) {
200:                    dataOutput.writeShort(nameAndTypeConstant.u2nameIndex);
201:                    dataOutput
202:                            .writeShort(nameAndTypeConstant.u2descriptorIndex);
203:                }
204:            }
205:
206:            // Implementations for AttributeVisitor.
207:
208:            public void visitAnyAttribute(Clazz clazz, Attribute attribute) {
209:                // Write the attribute name index.
210:                dataOutput.writeShort(attribute.u2attributeNameIndex);
211:
212:                // We'll write the attribute body into an array first, so we can
213:                // automatically figure out its length.
214:                ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
215:
216:                // Temporarily replace the current data output.
217:                RuntimeDataOutput oldDataOutput = dataOutput;
218:                dataOutput = new RuntimeDataOutput(new DataOutputStream(
219:                        byteArrayOutputStream));
220:
221:                // Write the attribute body into the array. Note that the
222:                // accept method with two dummy null arguments never throws
223:                // an UnsupportedOperationException.
224:                attribute.accept(clazz, null, null, attributeBodyWriter);
225:
226:                // Restore the original data output.
227:                dataOutput = oldDataOutput;
228:
229:                // Write the attribute length and body.
230:                byte[] info = byteArrayOutputStream.toByteArray();
231:
232:                dataOutput.writeInt(info.length);
233:                dataOutput.write(info);
234:            }
235:
236:            private class AttributeBodyWriter extends SimplifiedVisitor
237:                    implements  AttributeVisitor, InnerClassesInfoVisitor,
238:                    ExceptionInfoVisitor, StackMapFrameVisitor,
239:                    VerificationTypeVisitor, LineNumberInfoVisitor,
240:                    LocalVariableInfoVisitor, LocalVariableTypeInfoVisitor,
241:                    AnnotationVisitor, ElementValueVisitor {
242:                // Implementations for AttributeVisitor.
243:
244:                public void visitUnknownAttribute(Clazz clazz,
245:                        UnknownAttribute unknownAttribute) {
246:                    // Write the unknown information.
247:                    byte[] info = new byte[unknownAttribute.u4attributeLength];
248:                    dataOutput.write(info);
249:                    unknownAttribute.info = info;
250:                }
251:
252:                public void visitSourceFileAttribute(Clazz clazz,
253:                        SourceFileAttribute sourceFileAttribute) {
254:                    dataOutput
255:                            .writeShort(sourceFileAttribute.u2sourceFileIndex);
256:                }
257:
258:                public void visitSourceDirAttribute(Clazz clazz,
259:                        SourceDirAttribute sourceDirAttribute) {
260:                    dataOutput.writeShort(sourceDirAttribute.u2sourceDirIndex);
261:                }
262:
263:                public void visitInnerClassesAttribute(Clazz clazz,
264:                        InnerClassesAttribute innerClassesAttribute) {
265:                    // Write the inner classes.
266:                    dataOutput.writeShort(innerClassesAttribute.u2classesCount);
267:
268:                    innerClassesAttribute.innerClassEntriesAccept(clazz, this );
269:                }
270:
271:                public void visitEnclosingMethodAttribute(Clazz clazz,
272:                        EnclosingMethodAttribute enclosingMethodAttribute) {
273:                    dataOutput
274:                            .writeShort(enclosingMethodAttribute.u2classIndex);
275:                    dataOutput
276:                            .writeShort(enclosingMethodAttribute.u2nameAndTypeIndex);
277:                }
278:
279:                public void visitDeprecatedAttribute(Clazz clazz,
280:                        DeprecatedAttribute deprecatedAttribute) {
281:                    // This attribute does not contain any additional information.
282:                }
283:
284:                public void visitSyntheticAttribute(Clazz clazz,
285:                        SyntheticAttribute syntheticAttribute) {
286:                    // This attribute does not contain any additional information.
287:                }
288:
289:                public void visitSignatureAttribute(Clazz clazz,
290:                        SignatureAttribute signatureAttribute) {
291:                    dataOutput.writeShort(signatureAttribute.u2signatureIndex);
292:                }
293:
294:                public void visitConstantValueAttribute(Clazz clazz,
295:                        Field field,
296:                        ConstantValueAttribute constantValueAttribute) {
297:                    dataOutput
298:                            .writeShort(constantValueAttribute.u2constantValueIndex);
299:                }
300:
301:                public void visitExceptionsAttribute(Clazz clazz,
302:                        Method method, ExceptionsAttribute exceptionsAttribute) {
303:                    // Write the exceptions.
304:                    dataOutput
305:                            .writeShort(exceptionsAttribute.u2exceptionIndexTableLength);
306:
307:                    for (int index = 0; index < exceptionsAttribute.u2exceptionIndexTableLength; index++) {
308:                        dataOutput
309:                                .writeShort(exceptionsAttribute.u2exceptionIndexTable[index]);
310:                    }
311:                }
312:
313:                public void visitCodeAttribute(Clazz clazz, Method method,
314:                        CodeAttribute codeAttribute) {
315:                    // Write the stack size and local variable frame size.
316:                    dataOutput.writeShort(codeAttribute.u2maxStack);
317:                    dataOutput.writeShort(codeAttribute.u2maxLocals);
318:
319:                    // Write the byte code.
320:                    dataOutput.writeInt(codeAttribute.u4codeLength);
321:
322:                    dataOutput.write(codeAttribute.code, 0,
323:                            codeAttribute.u4codeLength);
324:
325:                    // Write the exceptions.
326:                    dataOutput.writeShort(codeAttribute.u2exceptionTableLength);
327:
328:                    codeAttribute.exceptionsAccept(clazz, method, this );
329:
330:                    // Write the code attributes.
331:                    dataOutput.writeShort(codeAttribute.u2attributesCount);
332:
333:                    codeAttribute.attributesAccept(clazz, method,
334:                            ProgramClassWriter.this );
335:                }
336:
337:                public void visitStackMapAttribute(Clazz clazz, Method method,
338:                        CodeAttribute codeAttribute,
339:                        StackMapAttribute stackMapAttribute) {
340:                    // Write the stack map frames (only full frames, without tag).
341:                    dataOutput
342:                            .writeShort(stackMapAttribute.u2stackMapFramesCount);
343:
344:                    stackMapAttribute.stackMapFramesAccept(clazz, method,
345:                            codeAttribute, stackMapFrameBodyWriter);
346:                }
347:
348:                public void visitStackMapTableAttribute(Clazz clazz,
349:                        Method method, CodeAttribute codeAttribute,
350:                        StackMapTableAttribute stackMapTableAttribute) {
351:                    // Write the stack map frames.
352:                    dataOutput
353:                            .writeShort(stackMapTableAttribute.u2stackMapFramesCount);
354:
355:                    stackMapTableAttribute.stackMapFramesAccept(clazz, method,
356:                            codeAttribute, this );
357:                }
358:
359:                public void visitLineNumberTableAttribute(Clazz clazz,
360:                        Method method, CodeAttribute codeAttribute,
361:                        LineNumberTableAttribute lineNumberTableAttribute) {
362:                    // Write the line numbers.
363:                    dataOutput
364:                            .writeShort(lineNumberTableAttribute.u2lineNumberTableLength);
365:
366:                    lineNumberTableAttribute.lineNumbersAccept(clazz, method,
367:                            codeAttribute, this );
368:                }
369:
370:                public void visitLocalVariableTableAttribute(Clazz clazz,
371:                        Method method, CodeAttribute codeAttribute,
372:                        LocalVariableTableAttribute localVariableTableAttribute) {
373:                    // Write the local variables.
374:                    dataOutput
375:                            .writeShort(localVariableTableAttribute.u2localVariableTableLength);
376:
377:                    localVariableTableAttribute.localVariablesAccept(clazz,
378:                            method, codeAttribute, this );
379:                }
380:
381:                public void visitLocalVariableTypeTableAttribute(
382:                        Clazz clazz,
383:                        Method method,
384:                        CodeAttribute codeAttribute,
385:                        LocalVariableTypeTableAttribute localVariableTypeTableAttribute) {
386:                    // Write the local variable types.
387:                    dataOutput
388:                            .writeShort(localVariableTypeTableAttribute.u2localVariableTypeTableLength);
389:
390:                    localVariableTypeTableAttribute.localVariablesAccept(clazz,
391:                            method, codeAttribute, this );
392:                }
393:
394:                public void visitAnyAnnotationsAttribute(Clazz clazz,
395:                        AnnotationsAttribute annotationsAttribute) {
396:                    // Write the annotations.
397:                    dataOutput
398:                            .writeShort(annotationsAttribute.u2annotationsCount);
399:
400:                    annotationsAttribute.annotationsAccept(clazz, this );
401:                }
402:
403:                public void visitAnyParameterAnnotationsAttribute(
404:                        Clazz clazz,
405:                        Method method,
406:                        ParameterAnnotationsAttribute parameterAnnotationsAttribute) {
407:                    // Write the parameter annotations.
408:                    dataOutput
409:                            .writeByte(parameterAnnotationsAttribute.u2parametersCount);
410:
411:                    for (int parameterIndex = 0; parameterIndex < parameterAnnotationsAttribute.u2parametersCount; parameterIndex++) {
412:                        // Write the parameter annotations of the given parameter.
413:                        int u2annotationsCount = parameterAnnotationsAttribute.u2parameterAnnotationsCount[parameterIndex];
414:                        Annotation[] annotations = parameterAnnotationsAttribute.parameterAnnotations[parameterIndex];
415:
416:                        dataOutput.writeShort(u2annotationsCount);
417:
418:                        for (int index = 0; index < u2annotationsCount; index++) {
419:                            Annotation annotation = annotations[index];
420:                            this .visitAnnotation(clazz, annotation);
421:                        }
422:
423:                    }
424:                }
425:
426:                public void visitAnnotationDefaultAttribute(Clazz clazz,
427:                        Method method,
428:                        AnnotationDefaultAttribute annotationDefaultAttribute) {
429:                    // Write the default element value.
430:                    annotationDefaultAttribute.defaultValue.accept(clazz, null,
431:                            this );
432:                }
433:
434:                // Implementations for InnerClassesInfoVisitor.
435:
436:                public void visitInnerClassesInfo(Clazz clazz,
437:                        InnerClassesInfo innerClassesInfo) {
438:                    dataOutput.writeShort(innerClassesInfo.u2innerClassIndex);
439:                    dataOutput.writeShort(innerClassesInfo.u2outerClassIndex);
440:                    dataOutput.writeShort(innerClassesInfo.u2innerNameIndex);
441:                    dataOutput
442:                            .writeShort(innerClassesInfo.u2innerClassAccessFlags);
443:                }
444:
445:                // Implementations for ExceptionInfoVisitor.
446:
447:                public void visitExceptionInfo(Clazz clazz, Method method,
448:                        CodeAttribute codeAttribute, ExceptionInfo exceptionInfo) {
449:                    dataOutput.writeShort(exceptionInfo.u2startPC);
450:                    dataOutput.writeShort(exceptionInfo.u2endPC);
451:                    dataOutput.writeShort(exceptionInfo.u2handlerPC);
452:                    dataOutput.writeShort(exceptionInfo.u2catchType);
453:                }
454:
455:                // Implementations for StackMapFrameVisitor.
456:
457:                public void visitAnyStackMapFrame(Clazz clazz, Method method,
458:                        CodeAttribute codeAttribute, int offset,
459:                        StackMapFrame stackMapFrame) {
460:                    // Write the stack map frame tag.
461:                    dataOutput.writeByte(stackMapFrame.getTag());
462:
463:                    // Write the actual body.
464:                    stackMapFrame.accept(clazz, method, codeAttribute, offset,
465:                            stackMapFrameBodyWriter);
466:                }
467:
468:                // Implementations for LineNumberInfoVisitor.
469:
470:                public void visitLineNumberInfo(Clazz clazz, Method method,
471:                        CodeAttribute codeAttribute,
472:                        LineNumberInfo lineNumberInfo) {
473:                    dataOutput.writeShort(lineNumberInfo.u2startPC);
474:                    dataOutput.writeShort(lineNumberInfo.u2lineNumber);
475:                }
476:
477:                // Implementations for LocalVariableInfoVisitor.
478:
479:                public void visitLocalVariableInfo(Clazz clazz, Method method,
480:                        CodeAttribute codeAttribute,
481:                        LocalVariableInfo localVariableInfo) {
482:                    dataOutput.writeShort(localVariableInfo.u2startPC);
483:                    dataOutput.writeShort(localVariableInfo.u2length);
484:                    dataOutput.writeShort(localVariableInfo.u2nameIndex);
485:                    dataOutput.writeShort(localVariableInfo.u2descriptorIndex);
486:                    dataOutput.writeShort(localVariableInfo.u2index);
487:                }
488:
489:                // Implementations for LocalVariableTypeInfoVisitor.
490:
491:                public void visitLocalVariableTypeInfo(Clazz clazz,
492:                        Method method, CodeAttribute codeAttribute,
493:                        LocalVariableTypeInfo localVariableTypeInfo) {
494:                    dataOutput.writeShort(localVariableTypeInfo.u2startPC);
495:                    dataOutput.writeShort(localVariableTypeInfo.u2length);
496:                    dataOutput.writeShort(localVariableTypeInfo.u2nameIndex);
497:                    dataOutput
498:                            .writeShort(localVariableTypeInfo.u2signatureIndex);
499:                    dataOutput.writeShort(localVariableTypeInfo.u2index);
500:                }
501:
502:                // Implementations for AnnotationVisitor.
503:
504:                public void visitAnnotation(Clazz clazz, Annotation annotation) {
505:                    // Write the annotation type.
506:                    dataOutput.writeShort(annotation.u2typeIndex);
507:
508:                    // Write the element value pairs.
509:                    dataOutput.writeShort(annotation.u2elementValuesCount);
510:
511:                    annotation.elementValuesAccept(clazz, this );
512:                }
513:
514:                // Implementations for ElementValueVisitor.
515:
516:                public void visitAnyElementValue(Clazz clazz,
517:                        Annotation annotation, ElementValue elementValue) {
518:                    // Write the element name index, if applicable.
519:                    int u2elementNameIndex = elementValue.u2elementNameIndex;
520:                    if (u2elementNameIndex != 0) {
521:                        dataOutput.writeShort(u2elementNameIndex);
522:                    }
523:
524:                    // Write the tag.
525:                    dataOutput.writeByte(elementValue.getTag());
526:
527:                    // Write the actual body.
528:                    elementValue.accept(clazz, annotation,
529:                            elementValueBodyWriter);
530:                }
531:            }
532:
533:            private class StackMapFrameBodyWriter extends SimplifiedVisitor
534:                    implements  StackMapFrameVisitor, VerificationTypeVisitor {
535:                public void visitSameZeroFrame(Clazz clazz, Method method,
536:                        CodeAttribute codeAttribute, int offset,
537:                        SameZeroFrame sameZeroFrame) {
538:                    if (sameZeroFrame.getTag() == StackMapFrame.SAME_ZERO_FRAME_EXTENDED) {
539:                        dataOutput.writeShort(sameZeroFrame.u2offsetDelta);
540:                    }
541:                }
542:
543:                public void visitSameOneFrame(Clazz clazz, Method method,
544:                        CodeAttribute codeAttribute, int offset,
545:                        SameOneFrame sameOneFrame) {
546:                    if (sameOneFrame.getTag() == StackMapFrame.SAME_ONE_FRAME_EXTENDED) {
547:                        dataOutput.writeShort(sameOneFrame.u2offsetDelta);
548:                    }
549:
550:                    // Write the verification type of the stack entry.
551:                    sameOneFrame.stackItemAccept(clazz, method, codeAttribute,
552:                            offset, this );
553:                }
554:
555:                public void visitLessZeroFrame(Clazz clazz, Method method,
556:                        CodeAttribute codeAttribute, int offset,
557:                        LessZeroFrame lessZeroFrame) {
558:                    dataOutput.writeShort(lessZeroFrame.u2offsetDelta);
559:                }
560:
561:                public void visitMoreZeroFrame(Clazz clazz, Method method,
562:                        CodeAttribute codeAttribute, int offset,
563:                        MoreZeroFrame moreZeroFrame) {
564:                    dataOutput.writeShort(moreZeroFrame.u2offsetDelta);
565:
566:                    // Write the verification types of the additional local variables.
567:                    moreZeroFrame.additionalVariablesAccept(clazz, method,
568:                            codeAttribute, offset, this );
569:                }
570:
571:                public void visitFullFrame(Clazz clazz, Method method,
572:                        CodeAttribute codeAttribute, int offset,
573:                        FullFrame fullFrame) {
574:                    dataOutput.writeShort(fullFrame.u2offsetDelta);
575:
576:                    // Write the verification types of the local variables.
577:                    dataOutput.writeShort(fullFrame.variablesCount);
578:                    fullFrame.variablesAccept(clazz, method, codeAttribute,
579:                            offset, this );
580:
581:                    // Write the verification types of the stack entries.
582:                    dataOutput.writeShort(fullFrame.stackCount);
583:                    fullFrame.stackAccept(clazz, method, codeAttribute, offset,
584:                            this );
585:                }
586:
587:                // Implementations for VerificationTypeVisitor.
588:
589:                public void visitAnyVerificationType(Clazz clazz,
590:                        Method method, CodeAttribute codeAttribute, int offset,
591:                        VerificationType verificationType) {
592:                    // Write the verification type tag.
593:                    dataOutput.writeByte(verificationType.getTag());
594:
595:                    // Write the actual body.
596:                    verificationType.accept(clazz, method, codeAttribute,
597:                            offset, verificationTypeBodyWriter);
598:                }
599:            }
600:
601:            private class VerificationTypeBodyWriter extends SimplifiedVisitor
602:                    implements  VerificationTypeVisitor {
603:                // Implementations for VerificationTypeVisitor.
604:
605:                public void visitAnyVerificationType(Clazz clazz,
606:                        Method method, CodeAttribute codeAttribute, int offset,
607:                        VerificationType verificationType) {
608:                    // Most verification types don't contain any additional information.
609:                }
610:
611:                public void visitObjectType(Clazz clazz, Method method,
612:                        CodeAttribute codeAttribute, int offset,
613:                        ObjectType objectType) {
614:                    dataOutput.writeShort(objectType.u2classIndex);
615:                }
616:
617:                public void visitUninitializedType(Clazz clazz, Method method,
618:                        CodeAttribute codeAttribute, int offset,
619:                        UninitializedType uninitializedType) {
620:                    dataOutput
621:                            .writeShort(uninitializedType.u2newInstructionOffset);
622:                }
623:            }
624:
625:            private class ElementValueBodyWriter extends SimplifiedVisitor
626:                    implements  ElementValueVisitor {
627:                // Implementations for ElementValueVisitor.
628:
629:                public void visitConstantElementValue(Clazz clazz,
630:                        Annotation annotation,
631:                        ConstantElementValue constantElementValue) {
632:                    dataOutput
633:                            .writeShort(constantElementValue.u2constantValueIndex);
634:                }
635:
636:                public void visitEnumConstantElementValue(Clazz clazz,
637:                        Annotation annotation,
638:                        EnumConstantElementValue enumConstantElementValue) {
639:                    dataOutput
640:                            .writeShort(enumConstantElementValue.u2typeNameIndex);
641:                    dataOutput
642:                            .writeShort(enumConstantElementValue.u2constantNameIndex);
643:                }
644:
645:                public void visitClassElementValue(Clazz clazz,
646:                        Annotation annotation,
647:                        ClassElementValue classElementValue) {
648:                    dataOutput.writeShort(classElementValue.u2classInfoIndex);
649:                }
650:
651:                public void visitAnnotationElementValue(Clazz clazz,
652:                        Annotation annotation,
653:                        AnnotationElementValue annotationElementValue) {
654:                    // Write the annotation.
655:                    attributeBodyWriter.visitAnnotation(clazz,
656:                            annotationElementValue.annotationValue);
657:                }
658:
659:                public void visitArrayElementValue(Clazz clazz,
660:                        Annotation annotation,
661:                        ArrayElementValue arrayElementValue) {
662:                    // Write the element values.
663:                    dataOutput
664:                            .writeShort(arrayElementValue.u2elementValuesCount);
665:
666:                    arrayElementValue.elementValuesAccept(clazz, annotation,
667:                            attributeBodyWriter);
668:                }
669:            }
670:        }
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