use std::borrow::Cow;
use xsd_parser::{
quick_xml::{
DeserializeBytes, DeserializeReader, Error, ErrorKind, RawByteStr, SerializeBytes,
WithDeserializer, WithSerializer,
},
schema::Namespace,
};
pub const NS_XS: Namespace = Namespace::new_const(b"http://www.w3.org/2001/XMLSchema");
pub const NS_XML: Namespace = Namespace::new_const(b"http://www.w3.org/XML/1998/namespace");
pub const NS_TNS: Namespace = Namespace::new_const(b"http://example.com");
pub type Foo = FooType;
#[derive(Debug)]
pub struct FooType {
pub _4: EnumType,
}
impl WithSerializer for FooType {
type Serializer<'x> = quick_xml_serialize::FooTypeSerializer<'x>;
fn serializer<'ser>(
&'ser self,
name: Option<&'ser str>,
is_root: bool,
) -> Result<Self::Serializer<'ser>, Error> {
Ok(quick_xml_serialize::FooTypeSerializer {
value: self,
state: Box::new(quick_xml_serialize::FooTypeSerializerState::Init__),
name: name.unwrap_or("tns:FooType"),
is_root,
})
}
}
impl WithDeserializer for FooType {
type Deserializer = quick_xml_deserialize::FooTypeDeserializer;
}
#[derive(Debug)]
pub enum EnumType {
_1,
_2,
_3,
}
impl SerializeBytes for EnumType {
fn serialize_bytes(&self) -> Result<Option<Cow<'_, str>>, Error> {
match self {
Self::_1 => Ok(Some(Cow::Borrowed("1"))),
Self::_2 => Ok(Some(Cow::Borrowed("2"))),
Self::_3 => Ok(Some(Cow::Borrowed("3"))),
}
}
}
impl DeserializeBytes for EnumType {
fn deserialize_bytes<R>(reader: &R, bytes: &[u8]) -> Result<Self, Error>
where
R: DeserializeReader,
{
match bytes {
b"1" => Ok(Self::_1),
b"2" => Ok(Self::_2),
b"3" => Ok(Self::_3),
x => Err(reader.map_error(ErrorKind::UnknownOrInvalidValue(RawByteStr::from_slice(x)))),
}
}
}
pub mod quick_xml_deserialize {
use core::mem::replace;
use xsd_parser::quick_xml::{
filter_xmlns_attributes, BytesStart, DeserializeReader, Deserializer, DeserializerArtifact,
DeserializerEvent, DeserializerOutput, DeserializerResult, ElementHandlerOutput, Error,
ErrorKind, Event, RawByteStr, WithDeserializer,
};
#[derive(Debug)]
pub struct FooTypeDeserializer {
_4: Option<super::EnumType>,
state: Box<FooTypeDeserializerState>,
}
#[derive(Debug)]
enum FooTypeDeserializerState {
Init__,
_4(Option<<super::EnumType as WithDeserializer>::Deserializer>),
Done__,
Unknown__,
}
impl FooTypeDeserializer {
fn from_bytes_start<R>(reader: &R, bytes_start: &BytesStart<'_>) -> Result<Self, Error>
where
R: DeserializeReader,
{
for attrib in filter_xmlns_attributes(bytes_start) {
let attrib = attrib?;
reader.raise_unexpected_attrib(attrib)?;
}
Ok(Self {
_4: None,
state: Box::new(FooTypeDeserializerState::Init__),
})
}
fn finish_state<R>(
&mut self,
reader: &R,
state: FooTypeDeserializerState,
) -> Result<(), Error>
where
R: DeserializeReader,
{
use FooTypeDeserializerState as S;
match state {
S::_4(Some(deserializer)) => self.store_4(deserializer.finish(reader)?)?,
_ => (),
}
Ok(())
}
fn store_4(&mut self, value: super::EnumType) -> Result<(), Error> {
if self._4.is_some() {
Err(ErrorKind::DuplicateElement(RawByteStr::from_slice(b"4")))?;
}
self._4 = Some(value);
Ok(())
}
fn handle_4<'de, R>(
&mut self,
reader: &R,
output: DeserializerOutput<'de, super::EnumType>,
fallback: &mut Option<FooTypeDeserializerState>,
) -> Result<ElementHandlerOutput<'de>, Error>
where
R: DeserializeReader,
{
let DeserializerOutput {
artifact,
event,
allow_any,
} = output;
if artifact.is_none() {
if self._4.is_some() {
fallback.get_or_insert(FooTypeDeserializerState::_4(None));
*self.state = FooTypeDeserializerState::Done__;
return Ok(ElementHandlerOutput::from_event(event, allow_any));
} else {
*self.state = FooTypeDeserializerState::_4(None);
return Ok(ElementHandlerOutput::break_(event, allow_any));
}
}
if let Some(fallback) = fallback.take() {
self.finish_state(reader, fallback)?;
}
Ok(match artifact {
DeserializerArtifact::None => unreachable!(),
DeserializerArtifact::Data(data) => {
self.store_4(data)?;
*self.state = FooTypeDeserializerState::Done__;
ElementHandlerOutput::from_event(event, allow_any)
}
DeserializerArtifact::Deserializer(deserializer) => {
let ret = ElementHandlerOutput::from_event(event, allow_any);
match &ret {
ElementHandlerOutput::Continue { .. } => {
fallback
.get_or_insert(FooTypeDeserializerState::_4(Some(deserializer)));
*self.state = FooTypeDeserializerState::Done__;
}
ElementHandlerOutput::Break { .. } => {
*self.state = FooTypeDeserializerState::_4(Some(deserializer));
}
}
ret
}
})
}
}
impl<'de> Deserializer<'de, super::FooType> for FooTypeDeserializer {
fn init<R>(reader: &R, event: Event<'de>) -> DeserializerResult<'de, super::FooType>
where
R: DeserializeReader,
{
reader.init_deserializer_from_start_event(event, Self::from_bytes_start)
}
fn next<R>(
mut self,
reader: &R,
event: Event<'de>,
) -> DeserializerResult<'de, super::FooType>
where
R: DeserializeReader,
{
use FooTypeDeserializerState as S;
let mut event = event;
let mut fallback = None;
let mut allow_any_element = false;
let (event, allow_any) = loop {
let state = replace(&mut *self.state, S::Unknown__);
event = match (state, event) {
(S::_4(Some(deserializer)), event) => {
let output = deserializer.next(reader, event)?;
match self.handle_4(reader, output, &mut fallback)? {
ElementHandlerOutput::Continue { event, allow_any } => {
allow_any_element = allow_any_element || allow_any;
event
}
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
}
}
(_, Event::End(_)) => {
if let Some(fallback) = fallback.take() {
self.finish_state(reader, fallback)?;
}
return Ok(DeserializerOutput {
artifact: DeserializerArtifact::Data(self.finish(reader)?),
event: DeserializerEvent::None,
allow_any: false,
});
}
(S::Init__, event) => {
fallback.get_or_insert(S::Init__);
*self.state = FooTypeDeserializerState::_4(None);
event
}
(S::_4(None), event @ (Event::Start(_) | Event::Empty(_))) => {
if reader.check_start_tag_name(&event, Some(&super::NS_TNS), b"4") {
let output = <super::EnumType as WithDeserializer>::Deserializer::init(
reader, event,
)?;
match self.handle_4(reader, output, &mut fallback)? {
ElementHandlerOutput::Continue { event, allow_any } => {
allow_any_element = allow_any_element || allow_any;
event
}
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
}
} else {
*self.state = S::Done__;
event
}
}
(S::Done__, event) => {
fallback.get_or_insert(S::Done__);
break (DeserializerEvent::Continue(event), allow_any_element);
}
(S::Unknown__, _) => unreachable!(),
(state, event) => {
*self.state = state;
break (DeserializerEvent::Break(event), false);
}
}
};
if let Some(fallback) = fallback {
*self.state = fallback;
}
Ok(DeserializerOutput {
artifact: DeserializerArtifact::Deserializer(self),
event,
allow_any,
})
}
fn finish<R>(mut self, reader: &R) -> Result<super::FooType, Error>
where
R: DeserializeReader,
{
let state = replace(&mut *self.state, FooTypeDeserializerState::Unknown__);
self.finish_state(reader, state)?;
Ok(super::FooType {
_4: self
._4
.ok_or_else(|| ErrorKind::MissingElement("4".into()))?,
})
}
}
}
pub mod quick_xml_serialize {
use core::iter::Iterator;
use xsd_parser::quick_xml::{BytesEnd, BytesStart, Error, Event, WithSerializer};
#[derive(Debug)]
pub struct FooTypeSerializer<'ser> {
pub(super) value: &'ser super::FooType,
pub(super) state: Box<FooTypeSerializerState<'ser>>,
pub(super) name: &'ser str,
pub(super) is_root: bool,
}
#[derive(Debug)]
pub(super) enum FooTypeSerializerState<'ser> {
Init__,
_4(<super::EnumType as WithSerializer>::Serializer<'ser>),
End__,
Done__,
Phantom__(&'ser ()),
}
impl<'ser> FooTypeSerializer<'ser> {
fn next_event(&mut self) -> Result<Option<Event<'ser>>, Error> {
loop {
match &mut *self.state {
FooTypeSerializerState::Init__ => {
*self.state = FooTypeSerializerState::_4(WithSerializer::serializer(
&self.value._4,
Some("tns:4"),
false,
)?);
let mut bytes = BytesStart::new(self.name);
if self.is_root {
bytes.push_attribute((&b"xmlns:tns"[..], &super::NS_TNS[..]));
}
return Ok(Some(Event::Start(bytes)));
}
FooTypeSerializerState::_4(x) => match x.next().transpose()? {
Some(event) => return Ok(Some(event)),
None => *self.state = FooTypeSerializerState::End__,
},
FooTypeSerializerState::End__ => {
*self.state = FooTypeSerializerState::Done__;
return Ok(Some(Event::End(BytesEnd::new(self.name))));
}
FooTypeSerializerState::Done__ => return Ok(None),
FooTypeSerializerState::Phantom__(_) => unreachable!(),
}
}
}
}
impl<'ser> Iterator for FooTypeSerializer<'ser> {
type Item = Result<Event<'ser>, Error>;
fn next(&mut self) -> Option<Self::Item> {
match self.next_event() {
Ok(Some(event)) => Some(Ok(event)),
Ok(None) => None,
Err(error) => {
*self.state = FooTypeSerializerState::Done__;
Some(Err(error))
}
}
}
}
}