com.tencent.tinker.android.dex.io.DexDataBuffer Maven / Gradle / Ivy
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.tencent.tinker.android.dex.io;
import com.tencent.tinker.android.dex.Annotation;
import com.tencent.tinker.android.dex.AnnotationSet;
import com.tencent.tinker.android.dex.AnnotationSetRefList;
import com.tencent.tinker.android.dex.AnnotationsDirectory;
import com.tencent.tinker.android.dex.ClassData;
import com.tencent.tinker.android.dex.ClassDef;
import com.tencent.tinker.android.dex.Code;
import com.tencent.tinker.android.dex.DebugInfoItem;
import com.tencent.tinker.android.dex.DexException;
import com.tencent.tinker.android.dex.EncodedValue;
import com.tencent.tinker.android.dex.EncodedValueReader;
import com.tencent.tinker.android.dex.FieldId;
import com.tencent.tinker.android.dex.Leb128;
import com.tencent.tinker.android.dex.MethodId;
import com.tencent.tinker.android.dex.Mutf8;
import com.tencent.tinker.android.dex.ProtoId;
import com.tencent.tinker.android.dex.SizeOf;
import com.tencent.tinker.android.dex.StringData;
import com.tencent.tinker.android.dex.TypeList;
import com.tencent.tinker.android.dex.util.ByteInput;
import com.tencent.tinker.android.dex.util.ByteOutput;
import java.io.ByteArrayOutputStream;
import java.io.UTFDataFormatException;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
/**
* *** This file is NOT a part of AOSP. ***
* Created by tangyinsheng on 2016/6/30.
*/
public class DexDataBuffer implements ByteInput, ByteOutput {
public static final int DEFAULT_BUFFER_SIZE = 512;
private static final short[] EMPTY_SHORT_ARRAY = new short[0];
private ByteBuffer data;
private int dataBound;
private boolean isResizeAllowed;
public DexDataBuffer() {
this.data = ByteBuffer.allocate(DEFAULT_BUFFER_SIZE);
this.data.order(ByteOrder.LITTLE_ENDIAN);
this.dataBound = this.data.position();
this.data.limit(this.data.capacity());
this.isResizeAllowed = true;
}
public DexDataBuffer(ByteBuffer data) {
this.data = data;
this.data.order(ByteOrder.LITTLE_ENDIAN);
this.dataBound = data.limit();
this.isResizeAllowed = false;
}
public DexDataBuffer(ByteBuffer data, boolean isResizeAllowed) {
this.data = data;
this.data.order(ByteOrder.LITTLE_ENDIAN);
this.dataBound = data.limit();
this.isResizeAllowed = isResizeAllowed;
}
public int position() {
return data.position();
}
public void position(int pos) {
data.position(pos);
}
public int available() {
return dataBound - data.position();
}
private void ensureBufferSize(int bytes) {
if (this.data.position() + bytes > this.data.limit()) {
if (this.isResizeAllowed) {
byte[] array = this.data.array();
byte[] newArray = new byte[array.length + bytes + (array.length >> 1)];
System.arraycopy(array, 0, newArray, 0, this.data.position());
int lastPos = this.data.position();
this.data = ByteBuffer.wrap(newArray);
this.data.order(ByteOrder.LITTLE_ENDIAN);
this.data.position(lastPos);
this.data.limit(this.data.capacity());
}
}
}
public byte[] array() {
byte[] result = new byte[this.dataBound];
byte[] dataArray = this.data.array();
System.arraycopy(dataArray, 0, result, 0, this.dataBound);
return result;
}
@Override
public byte readByte() {
return data.get();
}
public int readUnsignedByte() {
return readByte() & 0xFF;
}
public short readShort() {
return data.getShort();
}
public int readUnsignedShort() {
return readShort() & 0xffff;
}
public int readInt() {
return data.getInt();
}
public byte[] readByteArray(int length) {
byte[] result = new byte[length];
data.get(result);
return result;
}
public short[] readShortArray(int length) {
if (length == 0) {
return EMPTY_SHORT_ARRAY;
}
short[] result = new short[length];
for (int i = 0; i < length; i++) {
result[i] = readShort();
}
return result;
}
public int readUleb128() {
return Leb128.readUnsignedLeb128(this);
}
public int readUleb128p1() {
return Leb128.readUnsignedLeb128(this) - 1;
}
public int readSleb128() {
return Leb128.readSignedLeb128(this);
}
public StringData readStringData() {
int off = data.position();
try {
int expectedLength = readUleb128();
String result = Mutf8.decode(this, new char[expectedLength]);
if (result.length() != expectedLength) {
throw new DexException("Declared length " + expectedLength
+ " doesn't match decoded length of " + result.length());
}
return new StringData(off, result);
} catch (UTFDataFormatException e) {
throw new DexException(e);
}
}
public TypeList readTypeList() {
int off = data.position();
int size = readInt();
short[] types = readShortArray(size);
return new TypeList(off, types);
}
public FieldId readFieldId() {
int off = data.position();
int declaringClassIndex = readUnsignedShort();
int typeIndex = readUnsignedShort();
int nameIndex = readInt();
return new FieldId(off, declaringClassIndex, typeIndex, nameIndex);
}
public MethodId readMethodId() {
int off = data.position();
int declaringClassIndex = readUnsignedShort();
int protoIndex = readUnsignedShort();
int nameIndex = readInt();
return new MethodId(off, declaringClassIndex, protoIndex, nameIndex);
}
public ProtoId readProtoId() {
int off = data.position();
int shortyIndex = readInt();
int returnTypeIndex = readInt();
int parametersOffset = readInt();
return new ProtoId(off, shortyIndex, returnTypeIndex, parametersOffset);
}
public ClassDef readClassDef() {
int off = position();
int type = readInt();
int accessFlags = readInt();
int supertype = readInt();
int interfacesOffset = readInt();
int sourceFileIndex = readInt();
int annotationsOffset = readInt();
int classDataOffset = readInt();
int staticValuesOffset = readInt();
return new ClassDef(off, type, accessFlags, supertype,
interfacesOffset, sourceFileIndex, annotationsOffset, classDataOffset,
staticValuesOffset);
}
public Code readCode() {
int off = data.position();
int registersSize = readUnsignedShort();
int insSize = readUnsignedShort();
int outsSize = readUnsignedShort();
int triesSize = readUnsignedShort();
int debugInfoOffset = readInt();
int instructionsSize = readInt();
short[] instructions = readShortArray(instructionsSize);
Code.Try[] tries;
Code.CatchHandler[] catchHandlers;
if (triesSize > 0) {
if (instructions.length % 2 == 1) {
readShort(); // padding
}
/*
* We can't read the tries until we've read the catch handlers.
* Unfortunately they're in the opposite order in the dex file
* so we need to read them out-of-order.
*/
int posBeforeTries = data.position();
skip(triesSize * SizeOf.TRY_ITEM);
catchHandlers = readCatchHandlers();
int posAfterCatchHandlers = data.position();
data.position(posBeforeTries);
tries = readTries(triesSize, catchHandlers);
data.position(posAfterCatchHandlers);
} else {
tries = new Code.Try[0];
catchHandlers = new Code.CatchHandler[0];
}
return new Code(off, registersSize, insSize, outsSize, debugInfoOffset, instructions,
tries, catchHandlers);
}
private Code.CatchHandler[] readCatchHandlers() {
int baseOffset = data.position();
int catchHandlersSize = readUleb128();
Code.CatchHandler[] result = new Code.CatchHandler[catchHandlersSize];
for (int i = 0; i < catchHandlersSize; i++) {
int offset = data.position() - baseOffset;
result[i] = readCatchHandler(offset);
}
return result;
}
private Code.Try[] readTries(int triesSize, Code.CatchHandler[] catchHandlers) {
Code.Try[] result = new Code.Try[triesSize];
for (int i = 0; i < triesSize; i++) {
int startAddress = readInt();
int instructionCount = readUnsignedShort();
int handlerOffset = readUnsignedShort();
int catchHandlerIndex = findCatchHandlerIndex(catchHandlers, handlerOffset);
result[i] = new Code.Try(startAddress, instructionCount, catchHandlerIndex);
}
return result;
}
private int findCatchHandlerIndex(Code.CatchHandler[] catchHandlers, int offset) {
for (int i = 0; i < catchHandlers.length; i++) {
Code.CatchHandler catchHandler = catchHandlers[i];
if (catchHandler.offset == offset) {
return i;
}
}
throw new IllegalArgumentException();
}
private Code.CatchHandler readCatchHandler(int offset) {
int size = readSleb128();
int handlersCount = Math.abs(size);
int[] typeIndexes = new int[handlersCount];
int[] addresses = new int[handlersCount];
for (int i = 0; i < handlersCount; i++) {
typeIndexes[i] = readUleb128();
addresses[i] = readUleb128();
}
int catchAllAddress = size <= 0 ? readUleb128() : -1;
return new Code.CatchHandler(typeIndexes, addresses, catchAllAddress, offset);
}
public DebugInfoItem readDebugInfoItem() {
int off = data.position();
int lineStart = readUleb128();
int parametersSize = readUleb128();
int[] parameterNames = new int[parametersSize];
for (int i = 0; i < parametersSize; ++i) {
parameterNames[i] = readUleb128p1();
}
ByteArrayOutputStream baos = null;
try {
baos = new ByteArrayOutputStream(64);
final ByteArrayOutputStream baosRef = baos;
ByteOutput outAdapter = new ByteOutput() {
@Override
public void writeByte(int i) {
baosRef.write(i);
}
};
outside_whileloop:
while (true) {
int opcode = readByte();
baos.write(opcode);
switch (opcode) {
case DebugInfoItem.DBG_END_SEQUENCE: {
break outside_whileloop;
}
case DebugInfoItem.DBG_ADVANCE_PC: {
int addrDiff = readUleb128();
Leb128.writeUnsignedLeb128(outAdapter, addrDiff);
break;
}
case DebugInfoItem.DBG_ADVANCE_LINE: {
int lineDiff = readSleb128();
Leb128.writeSignedLeb128(outAdapter, lineDiff);
break;
}
case DebugInfoItem.DBG_START_LOCAL:
case DebugInfoItem.DBG_START_LOCAL_EXTENDED: {
int registerNum = readUleb128();
Leb128.writeUnsignedLeb128(outAdapter, registerNum);
int nameIndex = readUleb128p1();
Leb128.writeUnsignedLeb128p1(outAdapter, nameIndex);
int typeIndex = readUleb128p1();
Leb128.writeUnsignedLeb128p1(outAdapter, typeIndex);
if (opcode == DebugInfoItem.DBG_START_LOCAL_EXTENDED) {
int sigIndex = readUleb128p1();
Leb128.writeUnsignedLeb128p1(outAdapter, sigIndex);
}
break;
}
case DebugInfoItem.DBG_END_LOCAL:
case DebugInfoItem.DBG_RESTART_LOCAL: {
int registerNum = readUleb128();
Leb128.writeUnsignedLeb128(outAdapter, registerNum);
break;
}
case DebugInfoItem.DBG_SET_FILE: {
int nameIndex = readUleb128p1();
Leb128.writeUnsignedLeb128p1(outAdapter, nameIndex);
break;
}
case DebugInfoItem.DBG_SET_PROLOGUE_END:
case DebugInfoItem.DBG_SET_EPILOGUE_BEGIN:
default: {
break;
}
}
}
byte[] infoSTM = baos.toByteArray();
return new DebugInfoItem(off, lineStart, parameterNames, infoSTM);
} finally {
if (baos != null) {
try {
baos.close();
} catch (Exception e) {
// Do nothing.
}
}
}
}
public ClassData readClassData() {
int off = data.position();
int staticFieldsSize = readUleb128();
int instanceFieldsSize = readUleb128();
int directMethodsSize = readUleb128();
int virtualMethodsSize = readUleb128();
ClassData.Field[] staticFields = readFields(staticFieldsSize);
ClassData.Field[] instanceFields = readFields(instanceFieldsSize);
ClassData.Method[] directMethods = readMethods(directMethodsSize);
ClassData.Method[] virtualMethods = readMethods(virtualMethodsSize);
return new ClassData(off, staticFields, instanceFields, directMethods, virtualMethods);
}
private ClassData.Field[] readFields(int count) {
ClassData.Field[] result = new ClassData.Field[count];
int fieldIndex = 0;
for (int i = 0; i < count; i++) {
fieldIndex += readUleb128(); // field index diff
int accessFlags = readUleb128();
result[i] = new ClassData.Field(fieldIndex, accessFlags);
}
return result;
}
private ClassData.Method[] readMethods(int count) {
ClassData.Method[] result = new ClassData.Method[count];
int methodIndex = 0;
for (int i = 0; i < count; i++) {
methodIndex += readUleb128(); // method index diff
int accessFlags = readUleb128();
int codeOff = readUleb128();
result[i] = new ClassData.Method(methodIndex, accessFlags, codeOff);
}
return result;
}
/**
* Returns a byte array containing the bytes from {@code start} to this
* section's current position.
*/
private byte[] getBytesFrom(int start) {
int end = data.position();
byte[] result = new byte[end - start];
data.position(start);
data.get(result);
return result;
}
public Annotation readAnnotation() {
int off = data.position();
byte visibility = readByte();
int start = data.position();
new EncodedValueReader(this, EncodedValueReader.ENCODED_ANNOTATION).skipValue();
return new Annotation(off, visibility, new EncodedValue(start, getBytesFrom(start)));
}
public AnnotationSet readAnnotationSet() {
int off = data.position();
int size = readInt();
int[] annotationOffsets = new int[size];
for (int i = 0; i < size; ++i) {
annotationOffsets[i] = readInt();
}
return new AnnotationSet(off, annotationOffsets);
}
public AnnotationSetRefList readAnnotationSetRefList() {
int off = data.position();
int size = readInt();
int[] annotationSetRefItems = new int[size];
for (int i = 0; i < size; ++i) {
annotationSetRefItems[i] = readInt();
}
return new AnnotationSetRefList(off, annotationSetRefItems);
}
public AnnotationsDirectory readAnnotationsDirectory() {
int off = data.position();
int classAnnotationsOffset = readInt();
int fieldsSize = readInt();
int methodsSize = readInt();
int parameterListSize = readInt();
int[][] fieldAnnotations = new int[fieldsSize][2];
for (int i = 0; i < fieldsSize; ++i) {
// field index
fieldAnnotations[i][0] = readInt();
// annotations offset
fieldAnnotations[i][1] = readInt();
}
int[][] methodAnnotations = new int[methodsSize][2];
for (int i = 0; i < methodsSize; ++i) {
// method index
methodAnnotations[i][0] = readInt();
// annotation set offset
methodAnnotations[i][1] = readInt();
}
int[][] parameterAnnotations = new int[parameterListSize][2];
for (int i = 0; i < parameterListSize; ++i) {
// method index
parameterAnnotations[i][0] = readInt();
// annotations offset
parameterAnnotations[i][1] = readInt();
}
return new AnnotationsDirectory(off, classAnnotationsOffset, fieldAnnotations, methodAnnotations, parameterAnnotations);
}
public EncodedValue readEncodedArray() {
int start = data.position();
new EncodedValueReader(this, EncodedValueReader.ENCODED_ARRAY).skipValue();
return new EncodedValue(start, getBytesFrom(start));
}
public void skip(int count) {
if (count < 0) {
throw new IllegalArgumentException();
}
data.position(data.position() + count);
}
public void skipWithAutoExpand(int count) {
ensureBufferSize(SizeOf.UBYTE * count);
skip(count);
}
/**
* Skips bytes until the position is aligned to a multiple of 4.
*/
public void alignToFourBytes() {
data.position((data.position() + 3) & ~3);
}
/**
* Writes 0x00 until the position is aligned to a multiple of 4.
*/
public void alignToFourBytesWithZeroFill() {
int alignedPos = SizeOf.roundToTimesOfFour(data.position());
ensureBufferSize((alignedPos - data.position()) * SizeOf.UBYTE);
while ((data.position() & 3) != 0) {
data.put((byte) 0);
}
if (this.data.position() > this.dataBound) {
this.dataBound = this.data.position();
}
}
@Override
public void writeByte(int b) {
ensureBufferSize(SizeOf.UBYTE);
data.put((byte) b);
if (this.data.position() > this.dataBound) {
this.dataBound = this.data.position();
}
}
public void writeShort(short i) {
ensureBufferSize(SizeOf.USHORT);
data.putShort(i);
if (this.data.position() > this.dataBound) {
this.dataBound = this.data.position();
}
}
public void writeUnsignedShort(int i) {
short s = (short) i;
if (i != (s & 0xffff)) {
throw new IllegalArgumentException("Expected an unsigned short: " + i);
}
writeShort(s);
}
public void writeInt(int i) {
ensureBufferSize(SizeOf.UINT);
this.data.putInt(i);
if (this.data.position() > this.dataBound) {
this.dataBound = this.data.position();
}
}
public void write(byte[] bytes) {
ensureBufferSize(bytes.length * SizeOf.UBYTE);
this.data.put(bytes);
if (this.data.position() > this.dataBound) {
this.dataBound = this.data.position();
}
}
public void write(short[] shorts) {
ensureBufferSize(shorts.length * SizeOf.USHORT);
for (short s : shorts) {
writeShort(s);
}
if (this.data.position() > this.dataBound) {
this.dataBound = this.data.position();
}
}
public void writeUleb128(int i) {
Leb128.writeUnsignedLeb128(this, i);
}
public void writeUleb128p1(int i) {
writeUleb128(i + 1);
}
public void writeSleb128(int i) {
Leb128.writeSignedLeb128(this, i);
}
/**
* Write String data into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeStringData(StringData stringData) {
int off = data.position();
try {
int length = stringData.value.length();
writeUleb128(length);
write(Mutf8.encode(stringData.value));
writeByte(0);
return off;
} catch (UTFDataFormatException e) {
throw new AssertionError(e);
}
}
/**
* Write TypeList item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeTypeList(TypeList typeList) {
int off = data.position();
short[] types = typeList.types;
writeInt(types.length);
for (short type : types) {
writeShort(type);
}
return off;
}
/**
* Write FieldId item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeFieldId(FieldId fieldId) {
int off = data.position();
writeUnsignedShort(fieldId.declaringClassIndex);
writeUnsignedShort(fieldId.typeIndex);
writeInt(fieldId.nameIndex);
return off;
}
/**
* Write MethodId item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeMethodId(MethodId methodId) {
int off = data.position();
writeUnsignedShort(methodId.declaringClassIndex);
writeUnsignedShort(methodId.protoIndex);
writeInt(methodId.nameIndex);
return off;
}
/**
* Write ProtoId item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeProtoId(ProtoId protoId) {
int off = data.position();
writeInt(protoId.shortyIndex);
writeInt(protoId.returnTypeIndex);
writeInt(protoId.parametersOffset);
return off;
}
/**
* Write ClassDef item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeClassDef(ClassDef classDef) {
int off = data.position();
writeInt(classDef.typeIndex);
writeInt(classDef.accessFlags);
writeInt(classDef.supertypeIndex);
writeInt(classDef.interfacesOffset);
writeInt(classDef.sourceFileIndex);
writeInt(classDef.annotationsOffset);
writeInt(classDef.classDataOffset);
writeInt(classDef.staticValuesOffset);
return off;
}
/**
* Write Code item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeCode(Code code) {
int off = data.position();
writeUnsignedShort(code.registersSize);
writeUnsignedShort(code.insSize);
writeUnsignedShort(code.outsSize);
writeUnsignedShort(code.tries.length);
writeInt(code.debugInfoOffset);
writeInt(code.instructions.length);
write(code.instructions);
if (code.tries.length > 0) {
if ((code.instructions.length & 1) == 1) {
writeShort((short) 0); // padding
}
/*
* We can't write the tries until we've written the catch handlers.
* Unfortunately they're in the opposite order in the dex file so we
* need to transform them out-of-order.
*/
int posBeforeTries = data.position();
skipWithAutoExpand(code.tries.length * SizeOf.TRY_ITEM);
int[] offsets = writeCatchHandlers(code.catchHandlers);
int posAfterCatchHandlers = data.position();
data.position(posBeforeTries);
writeTries(code.tries, offsets);
data.position(posAfterCatchHandlers);
}
return off;
}
private int[] writeCatchHandlers(Code.CatchHandler[] catchHandlers) {
int baseOffset = data.position();
writeUleb128(catchHandlers.length);
int[] offsets = new int[catchHandlers.length];
for (int i = 0; i < catchHandlers.length; i++) {
offsets[i] = data.position() - baseOffset;
writeCatchHandler(catchHandlers[i]);
}
return offsets;
}
private void writeCatchHandler(Code.CatchHandler catchHandler) {
int catchAllAddress = catchHandler.catchAllAddress;
int[] typeIndexes = catchHandler.typeIndexes;
int[] addresses = catchHandler.addresses;
if (catchAllAddress != -1) {
writeSleb128(-typeIndexes.length);
} else {
writeSleb128(typeIndexes.length);
}
for (int i = 0; i < typeIndexes.length; i++) {
writeUleb128(typeIndexes[i]);
writeUleb128(addresses[i]);
}
if (catchAllAddress != -1) {
writeUleb128(catchAllAddress);
}
}
private void writeTries(Code.Try[] tries, int[] catchHandlerOffsets) {
for (Code.Try tryItem : tries) {
writeInt(tryItem.startAddress);
writeUnsignedShort(tryItem.instructionCount);
writeUnsignedShort(catchHandlerOffsets[tryItem.catchHandlerIndex]);
}
}
/**
* Write DebugInfo item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeDebugInfoItem(DebugInfoItem debugInfoItem) {
int off = data.position();
writeUleb128(debugInfoItem.lineStart);
int parametersSize = debugInfoItem.parameterNames.length;
writeUleb128(parametersSize);
for (int i = 0; i < parametersSize; ++i) {
int parameterName = debugInfoItem.parameterNames[i];
writeUleb128p1(parameterName);
}
write(debugInfoItem.infoSTM);
return off;
}
/**
* Write ClassData item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeClassData(ClassData classData) {
int off = data.position();
writeUleb128(classData.staticFields.length);
writeUleb128(classData.instanceFields.length);
writeUleb128(classData.directMethods.length);
writeUleb128(classData.virtualMethods.length);
writeFields(classData.staticFields);
writeFields(classData.instanceFields);
writeMethods(classData.directMethods);
writeMethods(classData.virtualMethods);
return off;
}
private void writeFields(ClassData.Field[] fields) {
int lastOutFieldIndex = 0;
for (ClassData.Field field : fields) {
writeUleb128(field.fieldIndex - lastOutFieldIndex);
lastOutFieldIndex = field.fieldIndex;
writeUleb128(field.accessFlags);
}
}
private void writeMethods(ClassData.Method[] methods) {
int lastOutMethodIndex = 0;
for (ClassData.Method method : methods) {
writeUleb128(method.methodIndex - lastOutMethodIndex);
lastOutMethodIndex = method.methodIndex;
writeUleb128(method.accessFlags);
writeUleb128(method.codeOffset);
}
}
/**
* Write Annotation item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeAnnotation(Annotation annotation) {
int off = data.position();
writeByte(annotation.visibility);
writeEncodedArray(annotation.encodedAnnotation);
return off;
}
/**
* Write AnnotationSet item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeAnnotationSet(AnnotationSet annotationSet) {
int off = data.position();
writeInt(annotationSet.annotationOffsets.length);
for (int annotationOffset : annotationSet.annotationOffsets) {
writeInt(annotationOffset);
}
return off;
}
/**
* Write AnnotationSetRefList item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeAnnotationSetRefList(AnnotationSetRefList annotationSetRefList) {
int off = data.position();
writeInt(annotationSetRefList.annotationSetRefItems.length);
for (int annotationSetRefItem : annotationSetRefList.annotationSetRefItems) {
writeInt(annotationSetRefItem);
}
return off;
}
/**
* Write AnnotationDirectory item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeAnnotationsDirectory(AnnotationsDirectory annotationsDirectory) {
int off = data.position();
writeInt(annotationsDirectory.classAnnotationsOffset);
writeInt(annotationsDirectory.fieldAnnotations.length);
writeInt(annotationsDirectory.methodAnnotations.length);
writeInt(annotationsDirectory.parameterAnnotations.length);
for (int[] fieldAnnotation : annotationsDirectory.fieldAnnotations) {
writeInt(fieldAnnotation[0]);
writeInt(fieldAnnotation[1]);
}
for (int[] methodAnnotation : annotationsDirectory.methodAnnotations) {
writeInt(methodAnnotation[0]);
writeInt(methodAnnotation[1]);
}
for (int[] parameterAnnotation : annotationsDirectory.parameterAnnotations) {
writeInt(parameterAnnotation[0]);
writeInt(parameterAnnotation[1]);
}
return off;
}
/**
* Write EncodedValue/EncodedArray item into current section.
*
* @return real offset of item we've just written in this section.
*/
public int writeEncodedArray(EncodedValue encodedValue) {
int off = data.position();
write(encodedValue.data);
return off;
}
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