mod list;
mod map;
mod variants;
use std::collections::BTreeMap;
use serde::ser::{Error as _, Serialize};
use crate::value::ser::list::SerializeList;
use crate::value::ser::map::SerializeMap;
use crate::value::ser::variants::{SerializeStructVariant, SerializeTupleVariant};
use crate::{Error, Result, Value};
#[cfg_attr(docsrs, doc(cfg(feature = "serde")))]
pub fn to_value<T>(value: T) -> Result<Value>
where
T: Serialize,
{
value.serialize(Serializer)
}
impl Serialize for Value {
fn serialize<S>(&self, serializer: S) -> std::result::Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
match self {
Value::None => serializer.serialize_unit(),
Value::Bool(b) => serializer.serialize_bool(*b),
Value::Integer(i) => serializer.serialize_i64(*i),
Value::Float(f) => serializer.serialize_f64(*f),
Value::String(string) => serializer.serialize_str(string),
Value::List(list) => list.serialize(serializer),
Value::Map(map) => {
use serde::ser::SerializeMap;
let mut m = serializer.serialize_map(Some(map.len()))?;
for (k, v) in map {
m.serialize_entry(k, v)?;
}
m.end()
}
}
}
}
pub struct Serializer;
impl serde::Serializer for Serializer {
type Ok = Value;
type Error = Error;
type SerializeSeq = SerializeList;
type SerializeTuple = SerializeList;
type SerializeTupleStruct = SerializeList;
type SerializeMap = SerializeMap;
type SerializeStruct = SerializeMap;
type SerializeTupleVariant = SerializeTupleVariant;
type SerializeStructVariant = SerializeStructVariant;
fn serialize_bool(self, v: bool) -> Result<Self::Ok> {
Ok(Value::Bool(v))
}
fn serialize_i8(self, v: i8) -> Result<Self::Ok> {
Ok(Value::Integer(i64::from(v)))
}
fn serialize_i16(self, v: i16) -> Result<Self::Ok> {
Ok(Value::Integer(i64::from(v)))
}
fn serialize_i32(self, v: i32) -> Result<Self::Ok> {
Ok(Value::Integer(i64::from(v)))
}
fn serialize_i64(self, v: i64) -> Result<Self::Ok> {
Ok(Value::Integer(v))
}
fn serialize_u8(self, v: u8) -> Result<Self::Ok> {
Ok(Value::Integer(i64::from(v)))
}
fn serialize_u16(self, v: u16) -> Result<Self::Ok> {
Ok(Value::Integer(i64::from(v)))
}
fn serialize_u32(self, v: u32) -> Result<Self::Ok> {
Ok(Value::Integer(i64::from(v)))
}
fn serialize_u64(self, v: u64) -> Result<Self::Ok> {
Ok(Value::Integer(i64::try_from(v).map_err(|_| {
Error::custom("out of range integral type conversion attempted")
})?))
}
fn serialize_f32(self, v: f32) -> Result<Self::Ok> {
Ok(Value::Float(f64::from(v)))
}
fn serialize_f64(self, v: f64) -> Result<Self::Ok> {
Ok(Value::Float(v))
}
fn serialize_char(self, v: char) -> Result<Self::Ok> {
Ok(Value::String(String::from(v)))
}
fn serialize_str(self, v: &str) -> Result<Self::Ok> {
Ok(Value::String(String::from(v)))
}
fn serialize_bytes(self, v: &[u8]) -> Result<Self::Ok> {
Ok(Value::List(
v.iter()
.copied()
.map(i64::from)
.map(Value::Integer)
.collect(),
))
}
fn serialize_none(self) -> Result<Self::Ok> {
self.serialize_unit()
}
fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Self::Ok>
where
T: serde::Serialize,
{
value.serialize(self)
}
fn serialize_unit(self) -> Result<Self::Ok> {
Ok(Value::None)
}
fn serialize_unit_struct(self, _name: &'static str) -> Result<Self::Ok> {
self.serialize_unit()
}
fn serialize_unit_variant(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
) -> Result<Self::Ok> {
self.serialize_str(variant)
}
fn serialize_newtype_struct<T: ?Sized>(self, _name: &'static str, value: &T) -> Result<Self::Ok>
where
T: serde::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>
where
T: serde::Serialize,
{
let mut map = BTreeMap::new();
map.insert(String::from(variant), to_value(value)?);
Ok(Value::Map(map))
}
fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq> {
Ok(SerializeList::with_capacity(len.unwrap_or(0)))
}
fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple> {
self.serialize_seq(Some(len))
}
fn serialize_tuple_struct(
self,
_name: &'static str,
len: usize,
) -> Result<Self::SerializeTupleStruct> {
self.serialize_seq(Some(len))
}
fn serialize_tuple_variant(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
len: usize,
) -> Result<Self::SerializeTupleVariant> {
Ok(SerializeTupleVariant {
name: variant.to_owned(),
list: Vec::with_capacity(len),
})
}
fn serialize_map(self, _: Option<usize>) -> Result<Self::SerializeMap> {
Ok(SerializeMap::new())
}
fn serialize_struct(self, _name: &'static str, len: usize) -> Result<Self::SerializeStruct> {
self.serialize_map(Some(len))
}
fn serialize_struct_variant(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
_len: usize,
) -> Result<Self::SerializeStructVariant> {
Ok(SerializeStructVariant {
name: variant.to_owned(),
map: BTreeMap::new(),
})
}
}