use lib::*;
use ser::{
self, Serialize, SerializeMap, SerializeSeq, SerializeStruct, SerializeStructVariant,
SerializeTuple, SerializeTupleStruct, SerializeTupleVariant,
};
pub struct Impossible<Ok, Error> {
void: Void,
ok: PhantomData<Ok>,
error: PhantomData<Error>,
}
enum Void {}
impl<Ok, Error> SerializeSeq for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeTuple for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeTupleStruct for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeTupleVariant for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeMap for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = key;
match self.void {}
}
fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeStruct for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = key;
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeStructVariant for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = key;
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}