use xsd_parser_types::{
misc::{Namespace, NamespacePrefix},
quick_xml::{Error, WithDeserializer, WithSerializer},
};
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_XSI: Namespace = Namespace::new_const(b"http://www.w3.org/2001/XMLSchema-instance");
pub const NS_TNS: Namespace = Namespace::new_const(b"http://example.com");
pub const PREFIX_XS: NamespacePrefix = NamespacePrefix::new_const(b"xs");
pub const PREFIX_XML: NamespacePrefix = NamespacePrefix::new_const(b"xml");
pub const PREFIX_XSI: NamespacePrefix = NamespacePrefix::new_const(b"xsi");
pub const PREFIX_TNS: NamespacePrefix = NamespacePrefix::new_const(b"tns");
pub type Foo = FooType;
#[derive(Debug)]
pub enum FooType {
Once(i32),
Optional(Option<i32>),
OnceSpecify(i32),
TwiceOrMore(Vec<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 WithDeserializer for FooType {
type Deserializer = quick_xml_deserialize::FooTypeDeserializer;
}
pub mod quick_xml_deserialize {
use core::mem::replace;
use xsd_parser_types::quick_xml::{
BytesStart, DeserializeHelper, Deserializer, DeserializerArtifact, DeserializerEvent,
DeserializerOutput, DeserializerResult, ElementHandlerOutput, Error, ErrorKind, Event,
RawByteStr, WithDeserializer,
};
#[derive(Debug)]
pub struct FooTypeDeserializer {
state__: Box<FooTypeDeserializerState>,
}
#[derive(Debug)]
pub enum FooTypeDeserializerState {
Init__,
Once(
Option<i32>,
Option<<i32 as WithDeserializer>::Deserializer>,
Option<<i32 as WithDeserializer>::Deserializer>,
),
Optional(
Option<i32>,
Option<<i32 as WithDeserializer>::Deserializer>,
Option<<i32 as WithDeserializer>::Deserializer>,
),
OnceSpecify(
Option<i32>,
Option<<i32 as WithDeserializer>::Deserializer>,
Option<<i32 as WithDeserializer>::Deserializer>,
),
TwiceOrMore(
Vec<i32>,
Option<<i32 as WithDeserializer>::Deserializer>,
Option<<i32 as WithDeserializer>::Deserializer>,
),
Done__(super::FooType),
Unknown__,
}
impl FooTypeDeserializer {
fn find_suitable<'de>(
&mut self,
helper: &mut DeserializeHelper,
event: Event<'de>,
) -> Result<ElementHandlerOutput<'de>, Error> {
if let Event::Start(x) | Event::Empty(x) = &event {
if matches!(
helper.resolve_local_name(x.name(), &super::NS_TNS),
Some(b"Once")
) {
let output = <i32 as WithDeserializer>::init(helper, event)?;
return self.handle_once(helper, Default::default(), None, output);
}
if matches!(
helper.resolve_local_name(x.name(), &super::NS_TNS),
Some(b"Optional")
) {
let output = <i32 as WithDeserializer>::init(helper, event)?;
return self.handle_optional(helper, Default::default(), None, output);
}
if matches!(
helper.resolve_local_name(x.name(), &super::NS_TNS),
Some(b"OnceSpecify")
) {
let output = <i32 as WithDeserializer>::init(helper, event)?;
return self.handle_once_specify(helper, Default::default(), None, output);
}
if matches!(
helper.resolve_local_name(x.name(), &super::NS_TNS),
Some(b"TwiceOrMore")
) {
let output = <i32 as WithDeserializer>::init(helper, event)?;
return self.handle_twice_or_more(helper, Default::default(), None, output);
}
}
*self.state__ = FooTypeDeserializerState::Init__;
Ok(ElementHandlerOutput::return_to_parent(event, false))
}
fn from_bytes_start(
helper: &mut DeserializeHelper,
bytes_start: &BytesStart<'_>,
) -> Result<Self, Error> {
for attrib in helper.filter_xmlns_attributes(bytes_start) {
let attrib = attrib?;
helper.raise_unexpected_attrib_checked(&attrib)?;
}
Ok(Self {
state__: Box::new(FooTypeDeserializerState::Init__),
})
}
fn finish_state(
helper: &mut DeserializeHelper,
state: FooTypeDeserializerState,
) -> Result<super::FooType, Error> {
use FooTypeDeserializerState as S;
match state {
S::Init__ => Err(ErrorKind::MissingContent.into()),
S::Once(mut values, None, deserializer) => {
if let Some(deserializer) = deserializer {
let value = deserializer.finish(helper)?;
Self::store_once(&mut values, value)?;
}
Ok(super::FooType::Once(helper.finish_element("Once", values)?))
}
S::Optional(mut values, None, deserializer) => {
if let Some(deserializer) = deserializer {
let value = deserializer.finish(helper)?;
Self::store_optional(&mut values, value)?;
}
Ok(super::FooType::Optional(values))
}
S::OnceSpecify(mut values, None, deserializer) => {
if let Some(deserializer) = deserializer {
let value = deserializer.finish(helper)?;
Self::store_once_specify(&mut values, value)?;
}
Ok(super::FooType::OnceSpecify(
helper.finish_element("OnceSpecify", values)?,
))
}
S::TwiceOrMore(mut values, None, deserializer) => {
if let Some(deserializer) = deserializer {
let value = deserializer.finish(helper)?;
Self::store_twice_or_more(&mut values, value)?;
}
Ok(super::FooType::TwiceOrMore(helper.finish_vec(
2usize,
Some(100usize),
values,
)?))
}
S::Done__(data) => Ok(data),
_ => unreachable!(),
}
}
fn store_once(values: &mut Option<i32>, value: i32) -> Result<(), Error> {
if values.is_some() {
Err(ErrorKind::DuplicateElement(RawByteStr::from_slice(b"Once")))?;
}
*values = Some(value);
Ok(())
}
fn store_optional(values: &mut Option<i32>, value: i32) -> Result<(), Error> {
if values.is_some() {
Err(ErrorKind::DuplicateElement(RawByteStr::from_slice(
b"Optional",
)))?;
}
*values = Some(value);
Ok(())
}
fn store_once_specify(values: &mut Option<i32>, value: i32) -> Result<(), Error> {
if values.is_some() {
Err(ErrorKind::DuplicateElement(RawByteStr::from_slice(
b"OnceSpecify",
)))?;
}
*values = Some(value);
Ok(())
}
fn store_twice_or_more(values: &mut Vec<i32>, value: i32) -> Result<(), Error> {
values.push(value);
Ok(())
}
fn handle_once<'de>(
&mut self,
helper: &mut DeserializeHelper,
mut values: Option<i32>,
fallback: Option<<i32 as WithDeserializer>::Deserializer>,
output: DeserializerOutput<'de, i32>,
) -> Result<ElementHandlerOutput<'de>, Error> {
use FooTypeDeserializerState as S;
let DeserializerOutput {
artifact,
event,
allow_any,
} = output;
if artifact.is_none() {
return Ok(ElementHandlerOutput::return_to_root(event, allow_any));
}
if let Some(deserializer) = fallback {
let data = deserializer.finish(helper)?;
Self::store_once(&mut values, data)?;
}
match artifact {
DeserializerArtifact::None => unreachable!(),
DeserializerArtifact::Data(data) => {
Self::store_once(&mut values, data)?;
*self.state__ = S::Once(values, None, None);
Ok(ElementHandlerOutput::from_event(event, allow_any))
}
DeserializerArtifact::Deserializer(deserializer) => {
*self.state__ = S::Once(values, None, Some(deserializer));
Ok(ElementHandlerOutput::from_event_end(event, allow_any))
}
}
}
fn handle_optional<'de>(
&mut self,
helper: &mut DeserializeHelper,
mut values: Option<i32>,
fallback: Option<<i32 as WithDeserializer>::Deserializer>,
output: DeserializerOutput<'de, i32>,
) -> Result<ElementHandlerOutput<'de>, Error> {
use FooTypeDeserializerState as S;
let DeserializerOutput {
artifact,
event,
allow_any,
} = output;
if artifact.is_none() {
return Ok(ElementHandlerOutput::return_to_root(event, allow_any));
}
if let Some(deserializer) = fallback {
let data = deserializer.finish(helper)?;
Self::store_optional(&mut values, data)?;
}
match artifact {
DeserializerArtifact::None => unreachable!(),
DeserializerArtifact::Data(data) => {
Self::store_optional(&mut values, data)?;
*self.state__ = S::Optional(values, None, None);
Ok(ElementHandlerOutput::from_event(event, allow_any))
}
DeserializerArtifact::Deserializer(deserializer) => {
*self.state__ = S::Optional(values, None, Some(deserializer));
Ok(ElementHandlerOutput::from_event_end(event, allow_any))
}
}
}
fn handle_once_specify<'de>(
&mut self,
helper: &mut DeserializeHelper,
mut values: Option<i32>,
fallback: Option<<i32 as WithDeserializer>::Deserializer>,
output: DeserializerOutput<'de, i32>,
) -> Result<ElementHandlerOutput<'de>, Error> {
use FooTypeDeserializerState as S;
let DeserializerOutput {
artifact,
event,
allow_any,
} = output;
if artifact.is_none() {
return Ok(ElementHandlerOutput::return_to_root(event, allow_any));
}
if let Some(deserializer) = fallback {
let data = deserializer.finish(helper)?;
Self::store_once_specify(&mut values, data)?;
}
match artifact {
DeserializerArtifact::None => unreachable!(),
DeserializerArtifact::Data(data) => {
Self::store_once_specify(&mut values, data)?;
*self.state__ = S::OnceSpecify(values, None, None);
Ok(ElementHandlerOutput::from_event(event, allow_any))
}
DeserializerArtifact::Deserializer(deserializer) => {
*self.state__ = S::OnceSpecify(values, None, Some(deserializer));
Ok(ElementHandlerOutput::from_event_end(event, allow_any))
}
}
}
fn handle_twice_or_more<'de>(
&mut self,
helper: &mut DeserializeHelper,
mut values: Vec<i32>,
fallback: Option<<i32 as WithDeserializer>::Deserializer>,
output: DeserializerOutput<'de, i32>,
) -> Result<ElementHandlerOutput<'de>, Error> {
use FooTypeDeserializerState as S;
let DeserializerOutput {
artifact,
event,
allow_any,
} = output;
if artifact.is_none() {
if fallback.is_none() && values.is_empty() {
*self.state__ = S::Init__;
return Ok(ElementHandlerOutput::return_to_root(event, allow_any));
} else if values.len() + usize::from(fallback.is_some()) < 2usize {
*self.state__ = S::TwiceOrMore(values, None, fallback);
return Ok(ElementHandlerOutput::return_to_root(event, allow_any));
} else {
*self.state__ = S::TwiceOrMore(values, None, fallback);
return Ok(ElementHandlerOutput::from_event_end(event, allow_any));
}
}
if let Some(deserializer) = fallback {
let data = deserializer.finish(helper)?;
Self::store_twice_or_more(&mut values, data)?;
}
match artifact {
DeserializerArtifact::None => unreachable!(),
DeserializerArtifact::Data(data) => {
Self::store_twice_or_more(&mut values, data)?;
*self.state__ = S::TwiceOrMore(values, None, None);
Ok(ElementHandlerOutput::from_event(event, allow_any))
}
DeserializerArtifact::Deserializer(deserializer) => {
let can_have_more = values.len() < 99usize;
let ret = if can_have_more {
ElementHandlerOutput::from_event(event, allow_any)
} else {
ElementHandlerOutput::from_event_end(event, allow_any)
};
if can_have_more && ret.is_continue_start_or_empty() {
*self.state__ = S::TwiceOrMore(values, Some(deserializer), None);
} else {
*self.state__ = S::TwiceOrMore(values, None, Some(deserializer));
}
Ok(ret)
}
}
}
}
impl<'de> Deserializer<'de, super::FooType> for FooTypeDeserializer {
fn init(
helper: &mut DeserializeHelper,
event: Event<'de>,
) -> DeserializerResult<'de, super::FooType> {
helper.init_deserializer_from_start_event(event, Self::from_bytes_start)
}
fn next(
mut self,
helper: &mut DeserializeHelper,
event: Event<'de>,
) -> DeserializerResult<'de, super::FooType> {
use FooTypeDeserializerState as S;
let mut event = event;
let (event, allow_any) = loop {
let state = replace(&mut *self.state__, S::Unknown__);
event = match (state, event) {
(S::Unknown__, _) => unreachable!(),
(S::Once(values, fallback, Some(deserializer)), event) => {
let output = deserializer.next(helper, event)?;
match self.handle_once(helper, values, fallback, output)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(S::Optional(values, fallback, Some(deserializer)), event) => {
let output = deserializer.next(helper, event)?;
match self.handle_optional(helper, values, fallback, output)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(S::OnceSpecify(values, fallback, Some(deserializer)), event) => {
let output = deserializer.next(helper, event)?;
match self.handle_once_specify(helper, values, fallback, output)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(S::TwiceOrMore(values, fallback, Some(deserializer)), event) => {
let output = deserializer.next(helper, event)?;
match self.handle_twice_or_more(helper, values, fallback, output)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(state, Event::End(_)) => {
return Ok(DeserializerOutput {
artifact: DeserializerArtifact::Data(Self::finish_state(
helper, state,
)?),
event: DeserializerEvent::None,
allow_any: false,
});
}
(S::Init__, event) => match self.find_suitable(helper, event)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
},
(
S::Once(values, fallback, None),
event @ (Event::Start(_) | Event::Empty(_)),
) => {
let output = helper.init_start_tag_deserializer(
event,
Some(&super::NS_TNS),
b"Once",
false,
)?;
match self.handle_once(helper, values, fallback, output)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(
S::Optional(values, fallback, None),
event @ (Event::Start(_) | Event::Empty(_)),
) => {
let output = helper.init_start_tag_deserializer(
event,
Some(&super::NS_TNS),
b"Optional",
false,
)?;
match self.handle_optional(helper, values, fallback, output)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(
S::OnceSpecify(values, fallback, None),
event @ (Event::Start(_) | Event::Empty(_)),
) => {
let output = helper.init_start_tag_deserializer(
event,
Some(&super::NS_TNS),
b"OnceSpecify",
false,
)?;
match self.handle_once_specify(helper, values, fallback, output)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(
S::TwiceOrMore(values, fallback, None),
event @ (Event::Start(_) | Event::Empty(_)),
) => {
let output = helper.init_start_tag_deserializer(
event,
Some(&super::NS_TNS),
b"TwiceOrMore",
false,
)?;
match self.handle_twice_or_more(helper, values, fallback, output)? {
ElementHandlerOutput::Break { event, allow_any } => {
break (event, allow_any)
}
ElementHandlerOutput::Continue { event, .. } => event,
}
}
(state @ S::Done__(_), event) => {
*self.state__ = state;
break (DeserializerEvent::Continue(event), false);
}
(state, event) => {
*self.state__ = state;
break (DeserializerEvent::Continue(event), false);
}
}
};
let artifact = if matches!(&*self.state__, S::Done__(_)) {
DeserializerArtifact::Data(self.finish(helper)?)
} else {
DeserializerArtifact::Deserializer(self)
};
Ok(DeserializerOutput {
artifact,
event,
allow_any,
})
}
fn finish(self, helper: &mut DeserializeHelper) -> Result<super::FooType, Error> {
Self::finish_state(helper, *self.state__)
}
}
}
pub mod quick_xml_serialize {
use xsd_parser_types::quick_xml::{
BytesEnd, BytesStart, Error, Event, IterSerializer, SerializeHelper, Serializer,
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__,
Once(<i32 as WithSerializer>::Serializer<'ser>),
Optional(IterSerializer<'ser, Option<&'ser i32>, i32>),
OnceSpecify(<i32 as WithSerializer>::Serializer<'ser>),
TwiceOrMore(IterSerializer<'ser, &'ser [i32], i32>),
End__,
Done__,
Phantom__(&'ser ()),
}
impl<'ser> FooTypeSerializer<'ser> {
fn next_event(
&mut self,
helper: &mut SerializeHelper,
) -> Result<Option<Event<'ser>>, Error> {
loop {
match &mut *self.state {
FooTypeSerializerState::Init__ => {
match self.value {
super::FooType::Once(x) => {
*self.state = FooTypeSerializerState::Once(
WithSerializer::serializer(x, Some("tns:Once"), self.is_root)?,
)
}
super::FooType::Optional(x) => {
*self.state = FooTypeSerializerState::Optional(IterSerializer::new(
x.as_ref(),
Some("tns:Optional"),
self.is_root,
))
}
super::FooType::OnceSpecify(x) => {
*self.state =
FooTypeSerializerState::OnceSpecify(WithSerializer::serializer(
x,
Some("tns:OnceSpecify"),
self.is_root,
)?)
}
super::FooType::TwiceOrMore(x) => {
*self.state =
FooTypeSerializerState::TwiceOrMore(IterSerializer::new(
&x[..],
Some("tns:TwiceOrMore"),
self.is_root,
))
}
}
let mut bytes = BytesStart::new(self.name);
helper.begin_ns_scope();
if self.is_root {
helper.write_xmlns(
&mut bytes,
Some(&super::PREFIX_TNS),
&super::NS_TNS,
);
}
return Ok(Some(Event::Start(bytes)));
}
FooTypeSerializerState::Once(x) => match x.next(helper).transpose()? {
Some(event) => return Ok(Some(event)),
None => *self.state = FooTypeSerializerState::End__,
},
FooTypeSerializerState::Optional(x) => match x.next(helper).transpose()? {
Some(event) => return Ok(Some(event)),
None => *self.state = FooTypeSerializerState::End__,
},
FooTypeSerializerState::OnceSpecify(x) => match x.next(helper).transpose()? {
Some(event) => return Ok(Some(event)),
None => *self.state = FooTypeSerializerState::End__,
},
FooTypeSerializerState::TwiceOrMore(x) => match x.next(helper).transpose()? {
Some(event) => return Ok(Some(event)),
None => *self.state = FooTypeSerializerState::End__,
},
FooTypeSerializerState::End__ => {
*self.state = FooTypeSerializerState::Done__;
helper.end_ns_scope();
return Ok(Some(Event::End(BytesEnd::new(self.name))));
}
FooTypeSerializerState::Done__ => return Ok(None),
FooTypeSerializerState::Phantom__(_) => unreachable!(),
}
}
}
}
impl<'ser> Serializer<'ser> for FooTypeSerializer<'ser> {
fn next(&mut self, helper: &mut SerializeHelper) -> Option<Result<Event<'ser>, Error>> {
match self.next_event(helper) {
Ok(Some(event)) => Some(Ok(event)),
Ok(None) => None,
Err(error) => {
*self.state = FooTypeSerializerState::Done__;
Some(Err(error))
}
}
}
}
}