use xsd_parser::{
quick_xml::{Error, 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 content: FooTypeContent,
}
#[derive(Debug)]
pub enum FooTypeContent {
Bar(String),
Baz(i32),
}
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 WithSerializer for FooTypeContent {
type Serializer<'x> = quick_xml_serialize::FooTypeContentSerializer<'x>;
fn serializer<'ser>(
&'ser self,
name: Option<&'ser str>,
is_root: bool,
) -> Result<Self::Serializer<'ser>, Error> {
let _name = name;
let _is_root = is_root;
Ok(quick_xml_serialize::FooTypeContentSerializer {
value: self,
state: Box::new(quick_xml_serialize::FooTypeContentSerializerState::Init__),
})
}
}
impl WithDeserializer for FooType {
type Deserializer = quick_xml_deserialize::FooTypeDeserializer;
}
impl WithDeserializer for FooTypeContent {
type Deserializer = quick_xml_deserialize::FooTypeContentDeserializer;
}
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 {
content: Option<super::FooTypeContent>,
state: Box<FooTypeDeserializerState>,
}
#[derive(Debug)]
enum FooTypeDeserializerState {
Init__,
Next__,
Content__(<super::FooTypeContent as WithDeserializer>::Deserializer),
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 {
content: None,
state: Box::new(FooTypeDeserializerState::Init__),
})
}
fn finish_state<R>(
&mut self,
reader: &R,
state: FooTypeDeserializerState,
) -> Result<(), Error>
where
R: DeserializeReader,
{
if let FooTypeDeserializerState::Content__(deserializer) = state {
self.store_content(deserializer.finish(reader)?)?;
}
Ok(())
}
fn store_content(&mut self, value: super::FooTypeContent) -> Result<(), Error> {
if self.content.is_some() {
Err(ErrorKind::DuplicateContent)?;
}
self.content = Some(value);
Ok(())
}
fn handle_content<'de, R>(
&mut self,
reader: &R,
output: DeserializerOutput<'de, super::FooTypeContent>,
fallback: &mut Option<FooTypeDeserializerState>,
) -> Result<ElementHandlerOutput<'de>, Error>
where
R: DeserializeReader,
{
let DeserializerOutput {
artifact,
event,
allow_any,
} = output;
if artifact.is_none() {
*self.state = fallback.take().unwrap_or(FooTypeDeserializerState::Next__);
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_content(data)?;
*self.state = FooTypeDeserializerState::Next__;
ElementHandlerOutput::from_event(event, allow_any)
}
DeserializerArtifact::Deserializer(deserializer) => {
*self.state = FooTypeDeserializerState::Content__(deserializer);
ElementHandlerOutput::from_event_end(event, allow_any)
}
})
}
}
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 (event, allow_any) = loop {
let state = replace(&mut *self.state, S::Unknown__);
event = match (state, event) {
(S::Content__(deserializer), event) => {
let output = deserializer.next(reader, event)?;
match self.handle_content(reader, output, &mut fallback)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(_, Event::End(_)) => {
return Ok(DeserializerOutput {
artifact: DeserializerArtifact::Data(self.finish(reader)?),
event: DeserializerEvent::None,
allow_any: false,
});
}
(state @ (S::Init__ | S::Next__), event) => {
fallback.get_or_insert(state);
let output =
<super::FooTypeContent as WithDeserializer>::Deserializer::init(
reader, event,
)?;
match self.handle_content(reader, output, &mut fallback)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(S::Unknown__, _) => unreachable!(),
}
};
let artifact = DeserializerArtifact::Deserializer(self);
Ok(DeserializerOutput {
artifact,
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 {
content: self.content.ok_or_else(|| ErrorKind::MissingContent)?,
})
}
}
#[derive(Debug)]
pub struct FooTypeContentDeserializer {
state: Box<FooTypeContentDeserializerState>,
}
#[derive(Debug)]
pub enum FooTypeContentDeserializerState {
Init__,
Bar(
Option<String>,
Option<<String as WithDeserializer>::Deserializer>,
),
Baz(Option<i32>, Option<<i32 as WithDeserializer>::Deserializer>),
Done__(super::FooTypeContent),
Unknown__,
}
impl FooTypeContentDeserializer {
fn find_suitable<'de, R>(
&mut self,
reader: &R,
event: Event<'de>,
fallback: &mut Option<FooTypeContentDeserializerState>,
) -> Result<ElementHandlerOutput<'de>, Error>
where
R: DeserializeReader,
{
let (Event::Start(x) | Event::Empty(x)) = &event else {
*self.state = fallback
.take()
.unwrap_or(FooTypeContentDeserializerState::Init__);
return Ok(ElementHandlerOutput::return_to_parent(event, false));
};
if matches!(
reader.resolve_local_name(x.name(), &super::NS_TNS),
Some(b"Bar")
) {
let output = <String as WithDeserializer>::Deserializer::init(reader, event)?;
return self.handle_bar(reader, Default::default(), output, &mut *fallback);
}
if matches!(
reader.resolve_local_name(x.name(), &super::NS_TNS),
Some(b"Baz")
) {
let output = <i32 as WithDeserializer>::Deserializer::init(reader, event)?;
return self.handle_baz(reader, Default::default(), output, &mut *fallback);
}
*self.state = fallback
.take()
.unwrap_or(FooTypeContentDeserializerState::Init__);
Ok(ElementHandlerOutput::return_to_parent(event, false))
}
fn finish_state<R>(
reader: &R,
state: FooTypeContentDeserializerState,
) -> Result<super::FooTypeContent, Error>
where
R: DeserializeReader,
{
use FooTypeContentDeserializerState as S;
match state {
S::Init__ => Err(ErrorKind::MissingContent.into()),
S::Bar(mut values, deserializer) => {
if let Some(deserializer) = deserializer {
let value = deserializer.finish(reader)?;
Self::store_bar(&mut values, value)?;
}
Ok(super::FooTypeContent::Bar(
values.ok_or_else(|| ErrorKind::MissingElement("Bar".into()))?,
))
}
S::Baz(mut values, deserializer) => {
if let Some(deserializer) = deserializer {
let value = deserializer.finish(reader)?;
Self::store_baz(&mut values, value)?;
}
Ok(super::FooTypeContent::Baz(
values.ok_or_else(|| ErrorKind::MissingElement("Baz".into()))?,
))
}
S::Done__(data) => Ok(data),
S::Unknown__ => unreachable!(),
}
}
fn store_bar(values: &mut Option<String>, value: String) -> Result<(), Error> {
if values.is_some() {
Err(ErrorKind::DuplicateElement(RawByteStr::from_slice(b"Bar")))?;
}
*values = Some(value);
Ok(())
}
fn store_baz(values: &mut Option<i32>, value: i32) -> Result<(), Error> {
if values.is_some() {
Err(ErrorKind::DuplicateElement(RawByteStr::from_slice(b"Baz")))?;
}
*values = Some(value);
Ok(())
}
fn handle_bar<'de, R>(
&mut self,
reader: &R,
mut values: Option<String>,
output: DeserializerOutput<'de, String>,
fallback: &mut Option<FooTypeContentDeserializerState>,
) -> Result<ElementHandlerOutput<'de>, Error>
where
R: DeserializeReader,
{
let DeserializerOutput {
artifact,
event,
allow_any,
} = output;
if artifact.is_none() {
*self.state = match fallback.take() {
None => FooTypeContentDeserializerState::Init__,
Some(FooTypeContentDeserializerState::Bar(_, Some(deserializer))) => {
FooTypeContentDeserializerState::Bar(values, Some(deserializer))
}
_ => unreachable!(),
};
return Ok(ElementHandlerOutput::break_(event, allow_any));
}
match fallback.take() {
None => (),
Some(FooTypeContentDeserializerState::Bar(_, Some(deserializer))) => {
let data = deserializer.finish(reader)?;
Self::store_bar(&mut values, data)?;
}
Some(_) => unreachable!(),
}
Ok(match artifact {
DeserializerArtifact::None => unreachable!(),
DeserializerArtifact::Data(data) => {
Self::store_bar(&mut values, data)?;
let data = Self::finish_state(
reader,
FooTypeContentDeserializerState::Bar(values, None),
)?;
*self.state = FooTypeContentDeserializerState::Done__(data);
ElementHandlerOutput::Break { event, allow_any }
}
DeserializerArtifact::Deserializer(deserializer) => {
*self.state = FooTypeContentDeserializerState::Bar(values, Some(deserializer));
ElementHandlerOutput::from_event_end(event, allow_any)
}
})
}
fn handle_baz<'de, R>(
&mut self,
reader: &R,
mut values: Option<i32>,
output: DeserializerOutput<'de, i32>,
fallback: &mut Option<FooTypeContentDeserializerState>,
) -> Result<ElementHandlerOutput<'de>, Error>
where
R: DeserializeReader,
{
let DeserializerOutput {
artifact,
event,
allow_any,
} = output;
if artifact.is_none() {
*self.state = match fallback.take() {
None => FooTypeContentDeserializerState::Init__,
Some(FooTypeContentDeserializerState::Baz(_, Some(deserializer))) => {
FooTypeContentDeserializerState::Baz(values, Some(deserializer))
}
_ => unreachable!(),
};
return Ok(ElementHandlerOutput::break_(event, allow_any));
}
match fallback.take() {
None => (),
Some(FooTypeContentDeserializerState::Baz(_, Some(deserializer))) => {
let data = deserializer.finish(reader)?;
Self::store_baz(&mut values, data)?;
}
Some(_) => unreachable!(),
}
Ok(match artifact {
DeserializerArtifact::None => unreachable!(),
DeserializerArtifact::Data(data) => {
Self::store_baz(&mut values, data)?;
let data = Self::finish_state(
reader,
FooTypeContentDeserializerState::Baz(values, None),
)?;
*self.state = FooTypeContentDeserializerState::Done__(data);
ElementHandlerOutput::Break { event, allow_any }
}
DeserializerArtifact::Deserializer(deserializer) => {
*self.state = FooTypeContentDeserializerState::Baz(values, Some(deserializer));
ElementHandlerOutput::from_event_end(event, allow_any)
}
})
}
}
impl<'de> Deserializer<'de, super::FooTypeContent> for FooTypeContentDeserializer {
fn init<R>(reader: &R, event: Event<'de>) -> DeserializerResult<'de, super::FooTypeContent>
where
R: DeserializeReader,
{
let deserializer = Self {
state: Box::new(FooTypeContentDeserializerState::Init__),
};
let mut output = deserializer.next(reader, event)?;
output.artifact = match output.artifact {
DeserializerArtifact::Deserializer(x)
if matches!(&*x.state, FooTypeContentDeserializerState::Init__) =>
{
DeserializerArtifact::None
}
artifact => artifact,
};
Ok(output)
}
fn next<R>(
mut self,
reader: &R,
event: Event<'de>,
) -> DeserializerResult<'de, super::FooTypeContent>
where
R: DeserializeReader,
{
use FooTypeContentDeserializerState as S;
let mut event = event;
let mut fallback = None;
let (event, allow_any) = loop {
let state = replace(&mut *self.state, S::Unknown__);
event = match (state, event) {
(S::Bar(values, Some(deserializer)), event) => {
let output = deserializer.next(reader, event)?;
match self.handle_bar(reader, values, output, &mut fallback)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(S::Baz(values, Some(deserializer)), event) => {
let output = deserializer.next(reader, event)?;
match self.handle_baz(reader, values, output, &mut fallback)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(state, event @ Event::End(_)) => {
return Ok(DeserializerOutput {
artifact: DeserializerArtifact::Data(Self::finish_state(
reader, state,
)?),
event: DeserializerEvent::Continue(event),
allow_any: false,
});
}
(S::Init__, event) => match self.find_suitable(reader, event, &mut fallback)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
},
(S::Bar(values, None), event) => {
let output =
<String as WithDeserializer>::Deserializer::init(reader, event)?;
match self.handle_bar(reader, values, output, &mut fallback)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(S::Baz(values, None), event) => {
let output = <i32 as WithDeserializer>::Deserializer::init(reader, event)?;
match self.handle_baz(reader, values, output, &mut fallback)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(s @ S::Done__(_), event) => {
*self.state = s;
break (DeserializerEvent::Continue(event), false);
}
(S::Unknown__, _) => unreachable!(),
}
};
let artifact = if matches!(&*self.state, S::Done__(_)) {
DeserializerArtifact::Data(self.finish(reader)?)
} else {
DeserializerArtifact::Deserializer(self)
};
Ok(DeserializerOutput {
artifact,
event,
allow_any,
})
}
fn finish<R>(self, reader: &R) -> Result<super::FooTypeContent, Error>
where
R: DeserializeReader,
{
Self::finish_state(reader, *self.state)
}
}
}
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__,
Content__(<super::FooTypeContent 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::Content__(
WithSerializer::serializer(&self.value.content, None, 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::Content__(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))
}
}
}
}
#[derive(Debug)]
pub struct FooTypeContentSerializer<'ser> {
pub(super) value: &'ser super::FooTypeContent,
pub(super) state: Box<FooTypeContentSerializerState<'ser>>,
}
#[derive(Debug)]
pub(super) enum FooTypeContentSerializerState<'ser> {
Init__,
Bar(<String as WithSerializer>::Serializer<'ser>),
Baz(<i32 as WithSerializer>::Serializer<'ser>),
Done__,
Phantom__(&'ser ()),
}
impl<'ser> FooTypeContentSerializer<'ser> {
fn next_event(&mut self) -> Result<Option<Event<'ser>>, Error> {
loop {
match &mut *self.state {
FooTypeContentSerializerState::Init__ => match self.value {
super::FooTypeContent::Bar(x) => {
*self.state = FooTypeContentSerializerState::Bar(
WithSerializer::serializer(x, Some("tns:Bar"), false)?,
)
}
super::FooTypeContent::Baz(x) => {
*self.state = FooTypeContentSerializerState::Baz(
WithSerializer::serializer(x, Some("tns:Baz"), false)?,
)
}
},
FooTypeContentSerializerState::Bar(x) => match x.next().transpose()? {
Some(event) => return Ok(Some(event)),
None => *self.state = FooTypeContentSerializerState::Done__,
},
FooTypeContentSerializerState::Baz(x) => match x.next().transpose()? {
Some(event) => return Ok(Some(event)),
None => *self.state = FooTypeContentSerializerState::Done__,
},
FooTypeContentSerializerState::Done__ => return Ok(None),
FooTypeContentSerializerState::Phantom__(_) => unreachable!(),
}
}
}
}
impl<'ser> Iterator for FooTypeContentSerializer<'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 = FooTypeContentSerializerState::Done__;
Some(Err(error))
}
}
}
}
}