use std::collections::BTreeMap;
use serde::{ser::Impossible, Serialize};
use crate::{
ser::map_key_serializer::MapKeySerializer, to_value, value::Value, ByteString, Dictionary,
Error,
};
impl Serialize for Value {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
match self {
Value::ByteString(byte_string) => byte_string.serialize(serializer),
Value::Integer(integer) => integer.serialize(serializer),
Value::List(list) => list.serialize(serializer),
Value::Dictionary(dictionary) => dictionary.serialize(serializer),
}
}
}
pub struct ValueSerializer;
impl ValueSerializer {
pub const fn new() -> Self {
Self {}
}
}
impl Default for ValueSerializer {
fn default() -> Self {
Self::new()
}
}
impl serde::Serializer for ValueSerializer {
type Ok = Value;
type Error = Error;
type SerializeSeq = SerializeVec;
type SerializeTuple = Impossible<Value, Error>;
type SerializeTupleStruct = Impossible<Value, Error>;
type SerializeTupleVariant = Impossible<Value, Error>;
type SerializeMap = SerializeMap;
type SerializeStruct = SerializeMap;
type SerializeStructVariant = Impossible<Value, Error>;
fn serialize_bool(self, _value: bool) -> Result<Self::Ok, Self::Error> {
Err(Error::Unsupported("bool"))
}
#[inline]
fn serialize_i8(self, value: i8) -> Result<Self::Ok, Self::Error> {
self.serialize_i64(value as i64)
}
#[inline]
fn serialize_i16(self, value: i16) -> Result<Self::Ok, Self::Error> {
self.serialize_i64(value as i64)
}
#[inline]
fn serialize_i32(self, value: i32) -> Result<Self::Ok, Self::Error> {
self.serialize_i64(value as i64)
}
fn serialize_i64(self, value: i64) -> Result<Self::Ok, Self::Error> {
Ok(Value::Integer(value.into()))
}
#[inline]
fn serialize_u8(self, value: u8) -> Result<Self::Ok, Self::Error> {
self.serialize_u64(value as u64)
}
#[inline]
fn serialize_u16(self, value: u16) -> Result<Self::Ok, Self::Error> {
self.serialize_u64(value as u64)
}
#[inline]
fn serialize_u32(self, value: u32) -> Result<Self::Ok, Self::Error> {
self.serialize_u64(value as u64)
}
fn serialize_u64(self, value: u64) -> Result<Self::Ok, Self::Error> {
Ok(Value::Integer(value.into()))
}
fn serialize_f32(self, _value: f32) -> Result<Self::Ok, Self::Error> {
Err(Error::Unsupported("f32"))
}
fn serialize_f64(self, _value: f64) -> Result<Self::Ok, Self::Error> {
Err(Error::Unsupported("f64"))
}
fn serialize_char(self, _value: char) -> Result<Self::Ok, Self::Error> {
Err(Error::Unsupported("char"))
}
fn serialize_str(self, value: &str) -> Result<Self::Ok, Self::Error> {
Ok(Value::ByteString(ByteString::from(value)))
}
fn serialize_bytes(self, value: &[u8]) -> Result<Self::Ok, Self::Error> {
Ok(Value::ByteString(ByteString::from(value)))
}
fn serialize_none(self) -> Result<Self::Ok, Self::Error> {
Err(Error::Unsupported("None"))
}
fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error>
where
T: Serialize,
{
value.serialize(self)
}
fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
Err(Error::Unsupported("unit"))
}
fn serialize_unit_struct(self, _name: &'static str) -> Result<Self::Ok, Self::Error> {
Err(Error::Unsupported("unit"))
}
fn serialize_unit_variant(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
) -> Result<Self::Ok, Self::Error> {
self.serialize_str(variant)
}
fn serialize_newtype_struct<T: ?Sized>(
self,
_name: &'static str,
value: &T,
) -> Result<Self::Ok, Self::Error>
where
T: Serialize,
{
value.serialize(self)
}
fn serialize_newtype_variant<T: ?Sized>(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_value: &T,
) -> Result<Self::Ok, Self::Error>
where
T: Serialize,
{
todo!()
}
fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
Ok(SerializeVec {
vec: Vec::with_capacity(len.unwrap_or(0)),
})
}
fn serialize_tuple(self, _len: usize) -> Result<Self::SerializeTuple, Self::Error> {
todo!()
}
fn serialize_tuple_struct(
self,
_name: &'static str,
_len: usize,
) -> Result<Self::SerializeTupleStruct, Self::Error> {
todo!()
}
fn serialize_tuple_variant(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_len: usize,
) -> Result<Self::SerializeTupleVariant, Self::Error> {
todo!()
}
fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
Ok(SerializeMap::new())
}
fn serialize_struct(
self,
_name: &'static str,
len: usize,
) -> Result<Self::SerializeStruct, Self::Error> {
self.serialize_map(Some(len))
}
fn serialize_struct_variant(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_len: usize,
) -> Result<Self::SerializeStructVariant, Self::Error> {
todo!()
}
}
pub struct SerializeVec {
vec: Vec<Value>,
}
impl serde::ser::SerializeSeq for SerializeVec {
type Ok = Value;
type Error = Error;
fn serialize_element<T>(&mut self, value: &T) -> Result<(), Error>
where
T: ?Sized + Serialize,
{
self.vec.push(to_value(value)?);
Ok(())
}
fn end(self) -> Result<Value, Error> {
Ok(Value::List(self.vec))
}
}
pub struct SerializeMap {
dictionary: Dictionary,
}
impl SerializeMap {
pub const fn new() -> Self {
Self {
dictionary: BTreeMap::new(),
}
}
}
impl serde::ser::SerializeMap for SerializeMap {
type Ok = Value;
type Error = Error;
fn serialize_key<T: ?Sized>(&mut self, _key: &T) -> Result<(), Error>
where
T: Serialize,
{
unreachable!()
}
fn serialize_value<T: ?Sized>(&mut self, _value: &T) -> Result<(), Error>
where
T: Serialize,
{
unreachable!()
}
fn serialize_entry<K: ?Sized, V: ?Sized>(
&mut self,
key: &K,
value: &V,
) -> Result<(), Self::Error>
where
K: Serialize,
V: Serialize,
{
let key = key.serialize(MapKeySerializer::new())?;
let value = value.serialize(ValueSerializer::new())?;
self.dictionary.insert(key, value);
Ok(())
}
fn end(self) -> Result<Self::Ok, Error> {
Ok(Value::Dictionary(self.dictionary))
}
}
impl serde::ser::SerializeStruct for SerializeMap {
type Ok = Value;
type Error = Error;
fn serialize_field<T: ?Sized>(
&mut self,
key: &'static str,
value: &T,
) -> Result<(), Self::Error>
where
T: Serialize,
{
let key = key.serialize(MapKeySerializer::new())?;
let value = value.serialize(ValueSerializer::new())?;
self.dictionary.insert(key, value);
Ok(())
}
fn end(self) -> Result<Self::Ok, Self::Error> {
Ok(Value::Dictionary(self.dictionary))
}
}