use crate::model::KString;
use serde::ser::Impossible;
use serde::{self, Serialize};
use crate::model::ser::{SerError, SerializeMap, SerializeStructVariant, SerializeTupleVariant};
use crate::model::value::ser::ValueSerializer;
use crate::model::Object;
pub fn to_object<T>(value: &T) -> Result<Object, crate::error::Error>
where
T: Serialize,
{
value.serialize(ObjectSerializer).map_err(|e| e.into())
}
struct ObjectSerializer;
fn object_cannot_be_a_scalar() -> SerError {
SerError::new(crate::error::Error::with_msg("Object cannot be a scalar."))
}
fn object_cannot_be_an_array() -> SerError {
SerError::new(crate::error::Error::with_msg("Object cannot be an array."))
}
impl serde::Serializer for ObjectSerializer {
type Ok = Object;
type Error = SerError;
type SerializeSeq = Impossible<Object, SerError>;
type SerializeTuple = Impossible<Object, SerError>;
type SerializeTupleStruct = Impossible<Object, SerError>;
type SerializeTupleVariant = SerializeTupleVariant<Object>;
type SerializeMap = SerializeMap<Object>;
type SerializeStruct = SerializeMap<Object>;
type SerializeStructVariant = SerializeStructVariant<Object>;
#[inline]
fn serialize_bool(self, _value: bool) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_i8(self, _value: i8) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_i16(self, _value: i16) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_i32(self, _value: i32) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
fn serialize_i64(self, _value: i64) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_u8(self, _value: u8) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_u16(self, _value: u16) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_u32(self, _value: u32) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_u64(self, _value: u64) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_f32(self, _value: f32) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_f64(self, _value: f64) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_char(self, _value: char) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_str(self, _value: &str) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
fn serialize_bytes(self, _value: &[u8]) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_unit(self) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_unit_struct(self, _name: &'static str) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_unit_variant(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_newtype_struct<T: ?Sized>(
self,
_name: &'static str,
value: &T,
) -> Result<Object, SerError>
where
T: Serialize,
{
value.serialize(ObjectSerializer)
}
fn serialize_newtype_variant<T: ?Sized>(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
value: &T,
) -> Result<Object, SerError>
where
T: Serialize,
{
let mut values = Object::new();
values.insert(
KString::from_static(variant),
value.serialize(ValueSerializer)?,
);
Ok(values)
}
#[inline]
fn serialize_none(self) -> Result<Object, SerError> {
Err(object_cannot_be_a_scalar())
}
#[inline]
fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Object, SerError>
where
T: Serialize,
{
value.serialize(ObjectSerializer)
}
fn serialize_seq(self, _len: Option<usize>) -> Result<Self::SerializeSeq, SerError> {
Err(object_cannot_be_an_array())
}
fn serialize_tuple(self, _len: usize) -> Result<Self::SerializeTuple, SerError> {
Err(object_cannot_be_an_array())
}
fn serialize_tuple_struct(
self,
_name: &'static str,
_len: usize,
) -> Result<Self::SerializeTupleStruct, SerError> {
Err(object_cannot_be_an_array())
}
fn serialize_tuple_variant(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
len: usize,
) -> Result<Self::SerializeTupleVariant, SerError> {
Ok(SerializeTupleVariant {
name: KString::from_static(variant),
vec: Vec::with_capacity(len),
other: std::marker::PhantomData,
})
}
fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap, SerError> {
Ok(SerializeMap::Map {
map: Object::new(),
next_key: None,
other: std::marker::PhantomData,
})
}
fn serialize_struct(
self,
_name: &'static str,
len: usize,
) -> Result<Self::SerializeStruct, SerError> {
self.serialize_map(Some(len))
}
fn serialize_struct_variant(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
_len: usize,
) -> Result<Self::SerializeStructVariant, SerError> {
Ok(SerializeStructVariant {
name: KString::from_static(variant),
map: Object::new(),
other: std::marker::PhantomData,
})
}
}