/*
* Copyright 2013, Google Inc.
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*
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* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
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* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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package org.jf.dexlib2.dexbacked.raw;
import org.jf.dexlib2.dexbacked.DexReader;
import org.jf.dexlib2.util.AnnotatedBytes;
import org.jf.util.ExceptionWithContext;
import javax.annotation.Nonnull;
public class EncodedValue {
public static void annotateEncodedValue(@Nonnull AnnotatedBytes out, @Nonnull DexReader reader) {
int valueArgType = reader.readUbyte();
int valueArg = valueArgType >>> 5;
int valueType = valueArgType & 0x1f;
switch (valueType) {
case 0x00:
out.annotate(1, "valueArg = %d, valueType = 0x%x: byte", valueArg, valueType);
int intValue = reader.readByte();
out.annotate(1, "value = 0x%x", intValue);
break;
case 0x02:
out.annotate(1, "valueArg = %d, valueType = 0x%x: short", valueArg, valueType);
intValue = reader.readSizedInt(valueArg+1);
out.annotate(valueArg + 1, "value = 0x%x", intValue);
break;
case 0x03:
out.annotate(1, "valueArg = %d, valueType = 0x%x: char", valueArg, valueType);
intValue = reader.readSizedSmallUint(valueArg+1);
out.annotate(valueArg+1, "value = 0x%x", intValue);
break;
case 0x04:
out.annotate(1, "valueArg = %d, valueType = 0x%x: int", valueArg, valueType);
intValue = reader.readSizedInt(valueArg+1);
out.annotate(valueArg+1, "value = 0x%x", intValue);
break;
case 0x06:
out.annotate(1, "valueArg = %d, valueType = 0x%x: long", valueArg, valueType);
long longValue = reader.readSizedLong(valueArg+1);
out.annotate(valueArg+1, "value = 0x%x", longValue);
break;
case 0x10:
out.annotate(1, "valueArg = %d, valueType = 0x%x: float", valueArg, valueType);
float floatValue = Float.intBitsToFloat(reader.readSizedRightExtendedInt(valueArg + 1));
out.annotate(valueArg+1, "value = %f", floatValue);
break;
case 0x11:
out.annotate(1, "valueArg = %d, valueType = 0x%x: double", valueArg, valueType);
double doubleValue = Double.longBitsToDouble(reader.readSizedRightExtendedLong(valueArg + 1));
out.annotate(valueArg+1, "value = %f", doubleValue);
break;
case 0x17:
out.annotate(1, "valueArg = %d, valueType = 0x%x: string", valueArg, valueType);
int stringIndex = reader.readSizedSmallUint(valueArg + 1);
out.annotate(valueArg+1, "value = %s",
StringIdItem.getReferenceAnnotation(reader.dexBuf, stringIndex, true));
break;
case 0x18:
out.annotate(1, "valueArg = %d, valueType = 0x%x: type", valueArg, valueType);
int typeIndex = reader.readSizedSmallUint(valueArg+1);
out.annotate(valueArg+1, "value = %s", TypeIdItem.getReferenceAnnotation(reader.dexBuf, typeIndex));
break;
case 0x19:
out.annotate(1, "valueArg = %d, valueType = 0x%x: field", valueArg, valueType);
int fieldIndex = reader.readSizedSmallUint(valueArg+1);
out.annotate(valueArg+1, "value = %s", FieldIdItem.getReferenceAnnotation(reader.dexBuf, fieldIndex));
break;
case 0x1a:
out.annotate(1, "valueArg = %d, valueType = 0x%x: method", valueArg, valueType);
int methodIndex = reader.readSizedSmallUint(valueArg+1);
out.annotate(valueArg+1, "value = %s", MethodIdItem.getReferenceAnnotation(reader.dexBuf, methodIndex));
break;
case 0x1b:
out.annotate(1, "valueArg = %d, valueType = 0x%x: enum", valueArg, valueType);
fieldIndex = reader.readSizedSmallUint(valueArg+1);
out.annotate(valueArg+1, "value = %s", FieldIdItem.getReferenceAnnotation(reader.dexBuf, fieldIndex));
break;
case 0x1c:
out.annotate(1, "valueArg = %d, valueType = 0x%x: array", valueArg, valueType);
annotateEncodedArray(out, reader);
break;
case 0x1d:
out.annotate(1, "valueArg = %d, valueType = 0x%x: annotation", valueArg, valueType);
annotateEncodedAnnotation(out, reader);
break;
case 0x1e:
out.annotate(1, "valueArg = %d, valueType = 0x%x: null", valueArg, valueType);
break;
case 0x1f:
out.annotate(1, "valueArg = %d, valueType = 0x%x: boolean, value=%s", valueArg, valueType, valueArg==1);
break;
default:
throw new ExceptionWithContext("Invalid encoded value type 0x%x at offset 0x%x", valueType,
out.getCursor());
}
}
public static void annotateEncodedAnnotation(@Nonnull AnnotatedBytes out, @Nonnull DexReader reader) {
assert out.getCursor() == reader.getOffset();
int typeIndex = reader.readSmallUleb128();
out.annotateTo(reader.getOffset(), TypeIdItem.getReferenceAnnotation(reader.dexBuf, typeIndex));
int size = reader.readSmallUleb128();
out.annotateTo(reader.getOffset(), "size: %d", size);
for (int i=0; i<size; i++) {
out.annotate(0, "element[%d]", i);
out.indent();
int nameIndex = reader.readSmallUleb128();
out.annotateTo(reader.getOffset(), "name = %s",
StringIdItem.getReferenceAnnotation(reader.dexBuf, nameIndex));
annotateEncodedValue(out, reader);
out.deindent();
}
}
public static void annotateEncodedArray(@Nonnull AnnotatedBytes out, @Nonnull DexReader reader) {
assert out.getCursor() == reader.getOffset();
int size = reader.readSmallUleb128();
out.annotateTo(reader.getOffset(), "size: %d", size);
for (int i=0; i<size; i++) {
out.annotate(0, "element[%d]", i);
out.indent();
annotateEncodedValue(out, reader);
out.deindent();
}
}
}