use crate::any::{Any, Error, Inner};
use ordered_float::OrderedFloat;
use serde::ser::{
Error as _, SerializeMap, SerializeSeq, SerializeStruct, SerializeStructVariant,
SerializeTuple, SerializeTupleStruct, SerializeTupleVariant,
};
use serde::{Serialize, Serializer};
use std::collections::BTreeMap;
use std::f64;
use std::fmt;
impl Serialize for Any {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match &self.0 {
Inner::Null => serializer.serialize_unit(),
Inner::Bool(v) => serializer.serialize_bool(*v),
Inner::I8(v) => serializer.serialize_i8(*v),
Inner::I16(v) => serializer.serialize_i16(*v),
Inner::I32(v) => serializer.serialize_i32(*v),
Inner::I64(v) => serializer.serialize_i64(*v),
Inner::I128(v) => serializer.serialize_i128(*v),
Inner::U8(v) => serializer.serialize_u8(*v),
Inner::U16(v) => serializer.serialize_u16(*v),
Inner::U32(v) => serializer.serialize_u32(*v),
Inner::U64(v) => serializer.serialize_u64(*v),
Inner::U128(v) => serializer.serialize_u128(*v),
Inner::F32(v) => serializer.serialize_f32(v.0),
Inner::F64(v) => serializer.serialize_f64(v.0),
Inner::Char(v) => serializer.serialize_char(*v),
Inner::String(v) => serializer.serialize_str(v),
Inner::Bytes(v) => serializer.serialize_bytes(v),
Inner::Seq(v) => v.serialize(serializer),
Inner::Map(v) => v.serialize(serializer),
}
}
}
pub(crate) struct AnySerializer;
impl Serializer for AnySerializer {
type Ok = Any;
type Error = Error;
type SerializeSeq = SeqSerializer;
type SerializeTuple = SeqSerializer;
type SerializeTupleStruct = SeqSerializer;
type SerializeTupleVariant = TupleVariantSerializer;
type SerializeMap = MapSerializer;
type SerializeStruct = MapSerializer;
type SerializeStructVariant = StructVariantSerializer;
#[inline]
fn serialize_bool(self, v: bool) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::Bool(v)))
}
#[inline]
fn serialize_i8(self, v: i8) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::I8(v)))
}
#[inline]
fn serialize_i16(self, v: i16) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::I16(v)))
}
#[inline]
fn serialize_i32(self, v: i32) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::I32(v)))
}
#[inline]
fn serialize_i64(self, v: i64) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::I64(v)))
}
#[inline]
fn serialize_i128(self, v: i128) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::I128(v)))
}
#[inline]
fn serialize_u8(self, v: u8) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::U8(v)))
}
#[inline]
fn serialize_u16(self, v: u16) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::U16(v)))
}
#[inline]
fn serialize_u32(self, v: u32) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::U32(v)))
}
#[inline]
fn serialize_u64(self, v: u64) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::U64(v)))
}
#[inline]
fn serialize_u128(self, v: u128) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::U128(v)))
}
#[inline]
fn serialize_f32(self, v: f32) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::F32(OrderedFloat(v))))
}
#[inline]
fn serialize_f64(self, v: f64) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::F64(OrderedFloat(v))))
}
#[inline]
fn serialize_char(self, v: char) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::String(v.to_string())))
}
#[inline]
fn serialize_str(self, v: &str) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::String(v.to_string())))
}
#[inline]
fn serialize_bytes(self, v: &[u8]) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::Bytes(v.to_vec())))
}
#[inline]
fn serialize_none(self) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::Null))
}
fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error>
where
T: Serialize,
{
value.serialize(self)
}
#[inline]
fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::Null))
}
#[inline]
fn serialize_unit_struct(self, _: &'static str) -> Result<Self::Ok, Self::Error> {
self.serialize_unit()
}
#[inline]
fn serialize_unit_variant(
self,
_: &'static str,
_: u32,
variant: &'static str,
) -> Result<Self::Ok, Self::Error> {
self.serialize_str(variant)
}
fn serialize_newtype_struct<T: ?Sized>(
self,
_: &'static str,
value: &T,
) -> Result<Self::Ok, Self::Error>
where
T: Serialize,
{
value.serialize(self)
}
fn serialize_newtype_variant<T>(
self,
_: &'static str,
_: u32,
variant: &'static str,
value: &T,
) -> Result<Self::Ok, Self::Error>
where
T: ?Sized + Serialize,
{
let mut map = BTreeMap::new();
let value = value.serialize(self)?;
map.insert(Any(Inner::String(variant.to_string())), value);
Ok(Any(Inner::Map(map)))
}
#[inline]
fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
Ok(SeqSerializer(Vec::with_capacity(len.unwrap_or(0))))
}
#[inline]
fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Self::Error> {
self.serialize_seq(Some(len))
}
#[inline]
fn serialize_tuple_struct(
self,
_: &'static str,
len: usize,
) -> Result<Self::SerializeTupleStruct, Self::Error> {
self.serialize_seq(Some(len))
}
#[inline]
fn serialize_tuple_variant(
self,
_: &'static str,
_: u32,
variant: &'static str,
len: usize,
) -> Result<Self::SerializeTupleVariant, Self::Error> {
Ok(TupleVariantSerializer {
variant,
vec: Vec::with_capacity(len),
})
}
#[inline]
fn serialize_map(self, _: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
Ok(MapSerializer {
map: BTreeMap::new(),
key: None,
})
}
#[inline]
fn serialize_struct(
self,
_: &'static str,
len: usize,
) -> Result<Self::SerializeStruct, Self::Error> {
self.serialize_map(Some(len))
}
#[inline]
fn serialize_struct_variant(
self,
_: &'static str,
_: u32,
variant: &'static str,
_: usize,
) -> Result<Self::SerializeStructVariant, Self::Error> {
Ok(StructVariantSerializer {
variant,
map: BTreeMap::new(),
})
}
fn collect_str<T>(self, value: &T) -> Result<Self::Ok, Self::Error>
where
T: ?Sized + fmt::Display,
{
Ok(Any(Inner::String(value.to_string())))
}
}
pub(crate) struct SeqSerializer(Vec<Any>);
impl SerializeSeq for SeqSerializer {
type Ok = Any;
type Error = Error;
fn serialize_element<T>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
let value = Any::new(value)?;
self.0.push(value);
Ok(())
}
#[inline]
fn end(self) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::Seq(self.0)))
}
}
impl SerializeTuple for SeqSerializer {
type Ok = Any;
type Error = Error;
fn serialize_element<T>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
SerializeSeq::serialize_element(self, value)
}
#[inline]
fn end(self) -> Result<Self::Ok, Self::Error> {
SerializeSeq::end(self)
}
}
impl SerializeTupleStruct for SeqSerializer {
type Ok = Any;
type Error = Error;
fn serialize_field<T>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
SerializeSeq::serialize_element(self, value)
}
#[inline]
fn end(self) -> Result<Self::Ok, Self::Error> {
SerializeSeq::end(self)
}
}
pub(crate) struct TupleVariantSerializer {
variant: &'static str,
vec: Vec<Any>,
}
impl SerializeTupleVariant for TupleVariantSerializer {
type Ok = Any;
type Error = Error;
fn serialize_field<T>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
let value = Any::new(value)?;
self.vec.push(value);
Ok(())
}
#[inline]
fn end(self) -> Result<Self::Ok, Self::Error> {
let mut out = BTreeMap::new();
out.insert(
Any(Inner::String(self.variant.to_string())),
Any(Inner::Seq(self.vec)),
);
Ok(Any(Inner::Map(out)))
}
}
pub(crate) struct MapSerializer {
map: BTreeMap<Any, Any>,
key: Option<Any>,
}
impl SerializeMap for MapSerializer {
type Ok = Any;
type Error = Error;
fn serialize_key<T>(&mut self, key: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
let key = key.serialize(AnySerializer)?;
self.key = Some(key);
Ok(())
}
fn serialize_value<T>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
let key = match self.key.take() {
Some(key) => key,
None => return Err(Error::custom("key missing")),
};
let value = value.serialize(AnySerializer)?;
self.map.insert(key, value);
Ok(())
}
fn end(self) -> Result<Self::Ok, Self::Error> {
Ok(Any(Inner::Map(self.map)))
}
}
impl SerializeStruct for MapSerializer {
type Ok = Any;
type Error = Error;
fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
SerializeMap::serialize_entry(self, key, value)
}
fn end(self) -> Result<Self::Ok, Self::Error> {
SerializeMap::end(self)
}
}
pub(crate) struct StructVariantSerializer {
variant: &'static str,
map: BTreeMap<Any, Any>,
}
impl SerializeStructVariant for StructVariantSerializer {
type Ok = Any;
type Error = Error;
fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
let key = key.serialize(AnySerializer)?;
let value = value.serialize(AnySerializer)?;
self.map.insert(key, value);
Ok(())
}
fn end(self) -> Result<Self::Ok, Self::Error> {
let mut out = BTreeMap::new();
out.insert(
Any(Inner::String(self.variant.to_string())),
Any(Inner::Map(self.map)),
);
Ok(Any(Inner::Map(out)))
}
}