private void writeClasses(PackedDataOutputStream stream, Index index) throws IOException {
Collection<ClassInfo> classes = index.getKnownClasses();
stream.writePackedU32(classes.size());
for (ClassInfo clazz : classes) {
stream.writePackedU32(positionOf(clazz.name()));
stream.writePackedU32(clazz.superName() == null ? 0 : positionOf(clazz.superName()));
stream.writeShort(clazz.flags());
DotName[] interfaces = clazz.interfaces();
stream.writePackedU32(interfaces.length);
for (DotName intf : interfaces) stream.writePackedU32(positionOf(intf));
Set<Entry<DotName, List<AnnotationTarget>>> entrySet = clazz.annotations().entrySet();
stream.writePackedU32(entrySet.size());
for (Entry<DotName, List<AnnotationTarget>> entry : entrySet) {
stream.writePackedU32(positionOf(entry.getKey()));
List<AnnotationTarget> targets = entry.getValue();
stream.writePackedU32(targets.size());
for (AnnotationTarget target : targets) {
if (target instanceof FieldInfo) {
FieldInfo field = (FieldInfo) target;
stream.writeByte(FIELD_TAG);
stream.writePackedU32(positionOf(field.name()));
writeType(stream, field.type());
stream.writeShort(field.flags());
} else if (target instanceof MethodInfo) {
MethodInfo method = (MethodInfo) target;
stream.writeByte(METHOD_TAG);
stream.writePackedU32(positionOf(method.name()));
stream.writePackedU32(method.args().length);
for (int i = 0; i < method.args().length; i++) {
writeType(stream, method.args()[i]);
}
writeType(stream, method.returnType());
stream.writeShort(method.flags());
} else if (target instanceof MethodParameterInfo) {
MethodParameterInfo param = (MethodParameterInfo) target;
MethodInfo method = param.method();
stream.writeByte(METHOD_PARAMATER_TAG);
stream.writePackedU32(positionOf(method.name()));
stream.writePackedU32(method.args().length);
for (int i = 0; i < method.args().length; i++) {
writeType(stream, method.args()[i]);
}
writeType(stream, method.returnType());
stream.writeShort(method.flags());
stream.writePackedU32(param.position());
} else if (target instanceof ClassInfo) {
stream.writeByte(CLASS_TAG);
} else throw new IllegalStateException("Unknown target");
}
}
}
}
/**
* Writes the specified index to the associated output stream. This may be called multiple times
* in order to write multiple indexes.
*
* @param index the index to write to the stream
* @return the number of bytes written to the stream
* @throws IOException if any i/o error occurs
*/
public int write(Index index) throws IOException {
PackedDataOutputStream stream = new PackedDataOutputStream(new BufferedOutputStream(out));
stream.writeInt(MAGIC);
stream.writeByte(VERSION);
buildTables(index);
writeClassTable(stream);
writeStringTable(stream);
writeClasses(stream, index);
stream.flush();
return stream.size();
}
private void writeType(PackedDataOutputStream stream, Type type) throws IOException {
stream.writeByte(type.kind().ordinal());
stream.writePackedU32(positionOf(type.name()));
}