use crate::err::Error;
use crate::statements::DefineNamespaceStatement;
use crate::value::serde::ser;
use crate::Ident;
use crate::Strand;
use ser::Serializer as _;
use serde::ser::Error as _;
use serde::ser::Impossible;
use serde::ser::Serialize;
pub struct Serializer;
impl ser::Serializer for Serializer {
type Ok = DefineNamespaceStatement;
type Error = Error;
type SerializeSeq = Impossible<DefineNamespaceStatement, Error>;
type SerializeTuple = Impossible<DefineNamespaceStatement, Error>;
type SerializeTupleStruct = Impossible<DefineNamespaceStatement, Error>;
type SerializeTupleVariant = Impossible<DefineNamespaceStatement, Error>;
type SerializeMap = Impossible<DefineNamespaceStatement, Error>;
type SerializeStruct = SerializeDefineNamespaceStatement;
type SerializeStructVariant = Impossible<DefineNamespaceStatement, Error>;
const EXPECTED: &'static str = "a struct `DefineNamespaceStatement`";
#[inline]
fn serialize_struct(
self,
_name: &'static str,
_len: usize,
) -> Result<Self::SerializeStruct, Error> {
Ok(SerializeDefineNamespaceStatement::default())
}
}
#[derive(Default)]
pub struct SerializeDefineNamespaceStatement {
name: Ident,
id: Option<u32>,
comment: Option<Strand>,
}
impl serde::ser::SerializeStruct for SerializeDefineNamespaceStatement {
type Ok = DefineNamespaceStatement;
type Error = Error;
fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<(), Error>
where
T: ?Sized + Serialize,
{
match key {
"name" => {
self.name = Ident(value.serialize(ser::string::Serializer.wrap())?);
}
"id" => {
self.id = value.serialize(ser::primitive::u32::opt::Serializer.wrap())?;
}
"comment" => {
self.comment = value.serialize(ser::strand::opt::Serializer.wrap())?;
}
key => {
return Err(Error::custom(format!(
"unexpected field `DefineNamespaceStatement::{key}`"
)));
}
}
Ok(())
}
fn end(self) -> Result<Self::Ok, Error> {
Ok(DefineNamespaceStatement {
name: self.name,
id: self.id,
comment: self.comment,
})
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn default() {
let stmt = DefineNamespaceStatement::default();
let value: DefineNamespaceStatement = stmt.serialize(Serializer.wrap()).unwrap();
assert_eq!(value, stmt);
}
}