use super::error::Error;
use serde;
use serde::ser::{
SerializeMap, SerializeSeq, SerializeStruct, SerializeStructVariant, SerializeTuple,
SerializeTupleStruct, SerializeTupleVariant,
};
use std::{io::Write, u32};
pub(crate) struct Serializer<W> {
writer: W,
}
impl<W: Write> Serializer<W> {
pub fn new(w: W) -> Serializer<W> {
Serializer { writer: w }
}
}
impl<'a, W: Write> serde::Serializer for &'a mut Serializer<W> {
type Ok = ();
type Error = Error;
type SerializeSeq = SerializeHelper<'a, W>;
type SerializeTuple = SerializeHelper<'a, W>;
type SerializeTupleStruct = SerializeHelper<'a, W>;
type SerializeTupleVariant = SerializeHelper<'a, W>;
type SerializeMap = SerializeHelper<'a, W>;
type SerializeStruct = SerializeHelper<'a, W>;
type SerializeStructVariant = SerializeHelper<'a, W>;
fn serialize_unit(self) -> Result<(), Error> {
Ok(())
}
fn serialize_unit_struct(self, _: &'static str) -> Result<(), Error> {
Ok(())
}
fn serialize_bool(self, _: bool) -> Result<(), Error> {
unimplemented!();
}
fn serialize_u8(self, v: u8) -> Result<(), Error> {
self.writer.write_all(&[v]).map_err(Into::into)
}
fn serialize_u16(self, v: u16) -> Result<(), Error> {
self.writer.write_all(&v.to_be_bytes()).map_err(Into::into)
}
fn serialize_u32(self, v: u32) -> Result<(), Error> {
self.writer.write_all(&v.to_be_bytes()).map_err(Into::into)
}
fn serialize_u64(self, v: u64) -> Result<(), Error> {
self.writer.write_all(&v.to_be_bytes()).map_err(Into::into)
}
fn serialize_i8(self, _: i8) -> Result<(), Error> {
unimplemented!();
}
fn serialize_i16(self, _: i16) -> Result<(), Error> {
unimplemented!();
}
fn serialize_i32(self, _: i32) -> Result<(), Error> {
unimplemented!();
}
fn serialize_i64(self, _: i64) -> Result<(), Error> {
unimplemented!();
}
fn serialize_f32(self, _: f32) -> Result<(), Error> {
unimplemented!();
}
fn serialize_f64(self, _: f64) -> Result<(), Error> {
unimplemented!();
}
fn serialize_str(self, _: &str) -> Result<(), Error> {
unimplemented!();
}
fn serialize_char(self, _: char) -> Result<(), Error> {
unimplemented!();
}
fn serialize_bytes(self, v: &[u8]) -> Result<(), Error> {
self.writer.write_all(v).map_err(Into::into)
}
fn serialize_none(self) -> Result<(), Error> {
unimplemented!();
}
fn serialize_some<T: ?Sized>(self, _v: &T) -> Result<(), Error>
where
T: serde::Serialize,
{
unimplemented!();
}
fn serialize_seq(self, _len: Option<usize>) -> Result<Self::SerializeSeq, Error> {
Ok(SerializeHelper { ser: self })
}
fn serialize_tuple(self, _len: usize) -> Result<Self::SerializeTuple, Error> {
Ok(SerializeHelper { ser: self })
}
fn serialize_tuple_struct(
self,
_name: &'static str,
_len: usize,
) -> Result<Self::SerializeTupleStruct, Error> {
Ok(SerializeHelper { ser: self })
}
fn serialize_tuple_variant(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_len: usize,
) -> Result<Self::SerializeTupleVariant, Error> {
unimplemented!();
}
fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap, Error> {
unimplemented!();
}
fn serialize_struct(
self,
_name: &'static str,
_len: usize,
) -> Result<Self::SerializeStruct, Error> {
Ok(SerializeHelper { ser: self })
}
fn serialize_struct_variant(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_len: usize,
) -> Result<Self::SerializeStructVariant, Error> {
unimplemented!();
}
fn serialize_newtype_struct<T>(self, _name: &'static str, value: &T) -> Result<(), Error>
where
T: serde::Serialize + ?Sized,
{
value.serialize(self)
}
fn serialize_newtype_variant<T>(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_value: &T,
) -> Result<(), Error>
where
T: serde::Serialize + ?Sized,
{
unimplemented!();
}
fn serialize_unit_variant(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
) -> Result<(), Error> {
unimplemented!();
}
fn is_human_readable(&self) -> bool {
false
}
}
pub(crate) struct SerializeHelper<'a, W> {
ser: &'a mut Serializer<W>,
}
impl<'a, W: Write> SerializeSeq for SerializeHelper<'a, W> {
type Ok = ();
type Error = Error;
#[inline]
fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: serde::Serialize,
{
value.serialize(&mut *self.ser)
}
#[inline]
fn end(self) -> Result<(), Error> {
Ok(())
}
}
impl<'a, W: Write> SerializeTuple for SerializeHelper<'a, W> {
type Ok = ();
type Error = Error;
#[inline]
fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: serde::Serialize,
{
value.serialize(&mut *self.ser)
}
#[inline]
fn end(self) -> Result<(), Error> {
Ok(())
}
}
impl<'a, W: Write> SerializeTupleStruct for SerializeHelper<'a, W> {
type Ok = ();
type Error = Error;
#[inline]
fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: serde::Serialize,
{
value.serialize(&mut *self.ser)
}
#[inline]
fn end(self) -> Result<(), Error> {
Ok(())
}
}
impl<'a, W: Write> SerializeTupleVariant for SerializeHelper<'a, W> {
type Ok = ();
type Error = Error;
#[inline]
fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: serde::Serialize,
{
value.serialize(&mut *self.ser)
}
#[inline]
fn end(self) -> Result<(), Error> {
Ok(())
}
}
impl<'a, W: Write> SerializeMap for SerializeHelper<'a, W> {
type Ok = ();
type Error = Error;
#[inline]
fn serialize_key<K: ?Sized>(&mut self, value: &K) -> Result<(), Error>
where
K: serde::Serialize,
{
value.serialize(&mut *self.ser)
}
#[inline]
fn serialize_value<V: ?Sized>(&mut self, value: &V) -> Result<(), Error>
where
V: serde::Serialize,
{
value.serialize(&mut *self.ser)
}
#[inline]
fn end(self) -> Result<(), Error> {
Ok(())
}
}
impl<'a, W: Write> SerializeStruct for SerializeHelper<'a, W> {
type Ok = ();
type Error = Error;
#[inline]
fn serialize_field<T: ?Sized>(&mut self, _key: &'static str, value: &T) -> Result<(), Error>
where
T: serde::Serialize,
{
value.serialize(&mut *self.ser)
}
#[inline]
fn end(self) -> Result<(), Error> {
Ok(())
}
}
impl<'a, W: Write> SerializeStructVariant for SerializeHelper<'a, W> {
type Ok = ();
type Error = Error;
#[inline]
fn serialize_field<T: ?Sized>(&mut self, _key: &'static str, value: &T) -> Result<(), Error>
where
T: serde::Serialize,
{
value.serialize(&mut *self.ser)
}
#[inline]
fn end(self) -> Result<(), Error> {
Ok(())
}
}