use serde::ser::{
Error as _, Impossible, SerializeMap, SerializeSeq, SerializeStruct, SerializeStructVariant,
SerializeTuple, SerializeTupleStruct, SerializeTupleVariant,
};
use serde::{Serialize, Serializer};
use serde_json::error::Error;
use super::array::IArray;
use super::number::INumber;
use super::object::IObject;
use super::string::IString;
use super::value::{DestructuredRef, IValue};
impl Serialize for IValue {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self.destructure_ref() {
DestructuredRef::Null => serializer.serialize_unit(),
DestructuredRef::Bool(b) => serializer.serialize_bool(b),
DestructuredRef::Number(n) => n.serialize(serializer),
DestructuredRef::String(s) => s.serialize(serializer),
DestructuredRef::Array(v) => v.serialize(serializer),
DestructuredRef::Object(o) => o.serialize(serializer),
}
}
}
impl Serialize for INumber {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if self.has_decimal_point() {
serializer.serialize_f64(self.to_f64().unwrap())
} else if let Some(v) = self.to_i64() {
serializer.serialize_i64(v)
} else {
serializer.serialize_u64(self.to_u64().unwrap())
}
}
}
impl Serialize for IString {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_str(self.as_str())
}
}
impl Serialize for IArray {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut s = serializer.serialize_seq(Some(self.len()))?;
for v in self {
s.serialize_element(v)?;
}
s.end()
}
}
impl Serialize for IObject {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut m = serializer.serialize_map(Some(self.len()))?;
for (k, v) in self {
m.serialize_entry(k, v)?;
}
m.end()
}
}
pub struct ValueSerializer;
impl Serializer for ValueSerializer {
type Ok = IValue;
type Error = Error;
type SerializeSeq = SerializeArray;
type SerializeTuple = SerializeArray;
type SerializeTupleStruct = SerializeArray;
type SerializeTupleVariant = SerializeArrayVariant;
type SerializeMap = SerializeObject;
type SerializeStruct = SerializeObject;
type SerializeStructVariant = SerializeObjectVariant;
#[inline]
fn serialize_bool(self, value: bool) -> Result<IValue, Self::Error> {
Ok(value.into())
}
#[inline]
fn serialize_i8(self, value: i8) -> Result<IValue, Self::Error> {
Ok(value.into())
}
#[inline]
fn serialize_i16(self, value: i16) -> Result<IValue, Self::Error> {
Ok(value.into())
}
#[inline]
fn serialize_i32(self, value: i32) -> Result<IValue, Self::Error> {
Ok(value.into())
}
fn serialize_i64(self, value: i64) -> Result<IValue, Self::Error> {
Ok(value.into())
}
#[inline]
fn serialize_u8(self, value: u8) -> Result<IValue, Self::Error> {
Ok(value.into())
}
#[inline]
fn serialize_u16(self, value: u16) -> Result<IValue, Self::Error> {
Ok(value.into())
}
#[inline]
fn serialize_u32(self, value: u32) -> Result<IValue, Self::Error> {
Ok(value.into())
}
#[inline]
fn serialize_u64(self, value: u64) -> Result<IValue, Self::Error> {
Ok(value.into())
}
#[inline]
fn serialize_f32(self, value: f32) -> Result<IValue, Self::Error> {
Ok(value.into())
}
#[inline]
fn serialize_f64(self, value: f64) -> Result<IValue, Self::Error> {
Ok(value.into())
}
#[inline]
fn serialize_char(self, value: char) -> Result<IValue, Self::Error> {
let mut buffer = [0u8; 4];
Ok(value.encode_utf8(&mut buffer).into())
}
#[inline]
fn serialize_str(self, value: &str) -> Result<IValue, Self::Error> {
Ok(value.into())
}
fn serialize_bytes(self, value: &[u8]) -> Result<IValue, Self::Error> {
let array: IArray = value.iter().copied().collect();
Ok(array.into())
}
#[inline]
fn serialize_unit(self) -> Result<IValue, Self::Error> {
Ok(IValue::NULL)
}
#[inline]
fn serialize_unit_struct(self, _name: &'static str) -> Result<IValue, Self::Error> {
self.serialize_unit()
}
#[inline]
fn serialize_unit_variant(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
) -> Result<IValue, Self::Error> {
self.serialize_str(variant)
}
#[inline]
fn serialize_newtype_struct<T>(
self,
_name: &'static str,
value: &T,
) -> Result<IValue, Self::Error>
where
T: ?Sized + Serialize,
{
value.serialize(self)
}
fn serialize_newtype_variant<T>(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
value: &T,
) -> Result<IValue, Self::Error>
where
T: ?Sized + Serialize,
{
let mut obj = IObject::new();
obj.insert(variant, value.serialize(self)?);
Ok(obj.into())
}
#[inline]
fn serialize_none(self) -> Result<IValue, Self::Error> {
self.serialize_unit()
}
#[inline]
fn serialize_some<T>(self, value: &T) -> Result<IValue, Self::Error>
where
T: ?Sized + Serialize,
{
value.serialize(self)
}
fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
Ok(SerializeArray {
array: IArray::with_capacity(len.unwrap_or(0)),
})
}
fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Self::Error> {
self.serialize_seq(Some(len))
}
fn serialize_tuple_struct(
self,
_name: &'static str,
len: usize,
) -> Result<Self::SerializeTupleStruct, Self::Error> {
self.serialize_seq(Some(len))
}
fn serialize_tuple_variant(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
len: usize,
) -> Result<Self::SerializeTupleVariant, Self::Error> {
Ok(SerializeArrayVariant {
name: variant.into(),
array: IArray::with_capacity(len),
})
}
fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
Ok(SerializeObject {
object: IObject::with_capacity(len.unwrap_or(0)),
next_key: None,
})
}
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> {
Ok(SerializeObjectVariant {
name: variant.into(),
object: IObject::with_capacity(len),
})
}
}
pub struct SerializeArray {
array: IArray,
}
pub struct SerializeArrayVariant {
name: IString,
array: IArray,
}
pub struct SerializeObject {
object: IObject,
next_key: Option<IString>,
}
pub struct SerializeObjectVariant {
name: IString,
object: IObject,
}
impl SerializeSeq for SerializeArray {
type Ok = IValue;
type Error = Error;
fn serialize_element<T>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
self.array.push(value.serialize(ValueSerializer)?);
Ok(())
}
fn end(self) -> Result<IValue, Self::Error> {
Ok(self.array.into())
}
}
impl SerializeTuple for SerializeArray {
type Ok = IValue;
type Error = Error;
fn serialize_element<T>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
SerializeSeq::serialize_element(self, value)
}
fn end(self) -> Result<IValue, Self::Error> {
SerializeSeq::end(self)
}
}
impl SerializeTupleStruct for SerializeArray {
type Ok = IValue;
type Error = Error;
fn serialize_field<T>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
SerializeSeq::serialize_element(self, value)
}
fn end(self) -> Result<IValue, Self::Error> {
SerializeSeq::end(self)
}
}
impl SerializeTupleVariant for SerializeArrayVariant {
type Ok = IValue;
type Error = Error;
fn serialize_field<T>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
self.array.push(value.serialize(ValueSerializer)?);
Ok(())
}
fn end(self) -> Result<IValue, Self::Error> {
let mut object = IObject::new();
object.insert(self.name, self.array);
Ok(object.into())
}
}
impl SerializeMap for SerializeObject {
type Ok = IValue;
type Error = Error;
fn serialize_key<T>(&mut self, key: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
self.next_key = Some(key.serialize(ObjectKeySerializer)?);
Ok(())
}
fn serialize_value<T>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
let key = self
.next_key
.take()
.expect("serialize_value called before serialize_key");
self.object.insert(key, value.serialize(ValueSerializer)?);
Ok(())
}
fn end(self) -> Result<IValue, Self::Error> {
Ok(self.object.into())
}
}
struct ObjectKeySerializer;
fn key_must_be_a_string() -> Error {
Error::custom("Object key must be a string")
}
impl Serializer for ObjectKeySerializer {
type Ok = IString;
type Error = Error;
type SerializeSeq = Impossible<IString, Error>;
type SerializeTuple = Impossible<IString, Error>;
type SerializeTupleStruct = Impossible<IString, Error>;
type SerializeTupleVariant = Impossible<IString, Error>;
type SerializeMap = Impossible<IString, Error>;
type SerializeStruct = Impossible<IString, Error>;
type SerializeStructVariant = Impossible<IString, Error>;
#[inline]
fn serialize_unit_variant(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
) -> Result<IString, Self::Error> {
Ok(variant.into())
}
#[inline]
fn serialize_newtype_struct<T>(
self,
_name: &'static str,
value: &T,
) -> Result<IString, Self::Error>
where
T: ?Sized + Serialize,
{
value.serialize(self)
}
fn serialize_bool(self, _value: bool) -> Result<IString, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_i8(self, value: i8) -> Result<IString, Self::Error> {
Ok(value.to_string().into())
}
fn serialize_i16(self, value: i16) -> Result<IString, Self::Error> {
Ok(value.to_string().into())
}
fn serialize_i32(self, value: i32) -> Result<IString, Self::Error> {
Ok(value.to_string().into())
}
fn serialize_i64(self, value: i64) -> Result<IString, Self::Error> {
Ok(value.to_string().into())
}
fn serialize_u8(self, value: u8) -> Result<IString, Self::Error> {
Ok(value.to_string().into())
}
fn serialize_u16(self, value: u16) -> Result<IString, Self::Error> {
Ok(value.to_string().into())
}
fn serialize_u32(self, value: u32) -> Result<IString, Self::Error> {
Ok(value.to_string().into())
}
fn serialize_u64(self, value: u64) -> Result<IString, Self::Error> {
Ok(value.to_string().into())
}
fn serialize_f32(self, _value: f32) -> Result<IString, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_f64(self, _value: f64) -> Result<IString, Self::Error> {
Err(key_must_be_a_string())
}
#[inline]
fn serialize_char(self, value: char) -> Result<IString, Self::Error> {
let mut buffer = [0u8; 4];
Ok(value.encode_utf8(&mut buffer).into())
}
#[inline]
fn serialize_str(self, value: &str) -> Result<IString, Self::Error> {
Ok(value.into())
}
fn serialize_bytes(self, _value: &[u8]) -> Result<IString, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_unit(self) -> Result<IString, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_unit_struct(self, _name: &'static str) -> Result<IString, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_newtype_variant<T>(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_value: &T,
) -> Result<IString, Self::Error>
where
T: ?Sized + Serialize,
{
Err(key_must_be_a_string())
}
fn serialize_none(self) -> Result<IString, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_some<T>(self, _value: &T) -> Result<IString, Self::Error>
where
T: ?Sized + Serialize,
{
Err(key_must_be_a_string())
}
fn serialize_seq(self, _len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_tuple(self, _len: usize) -> Result<Self::SerializeTuple, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_tuple_struct(
self,
_name: &'static str,
_len: usize,
) -> Result<Self::SerializeTupleStruct, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_tuple_variant(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_len: usize,
) -> Result<Self::SerializeTupleVariant, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_struct(
self,
_name: &'static str,
_len: usize,
) -> Result<Self::SerializeStruct, Self::Error> {
Err(key_must_be_a_string())
}
fn serialize_struct_variant(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_len: usize,
) -> Result<Self::SerializeStructVariant, Self::Error> {
Err(key_must_be_a_string())
}
}
impl SerializeStruct for SerializeObject {
type Ok = IValue;
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<IValue, Self::Error> {
SerializeMap::end(self)
}
}
impl SerializeStructVariant for SerializeObjectVariant {
type Ok = IValue;
type Error = Error;
fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error>
where
T: ?Sized + Serialize,
{
self.object.insert(key, value.serialize(ValueSerializer)?);
Ok(())
}
fn end(self) -> Result<IValue, Self::Error> {
let mut object = IObject::new();
object.insert(self.name, self.object);
Ok(object.into())
}
}
pub fn to_value<T>(value: T) -> Result<IValue, Error>
where
T: Serialize,
{
value.serialize(ValueSerializer)
}