use crate::value::map::ValueMap;
use crate::Value;
use serde::ser::{
self, SerializeMap, SerializeSeq, SerializeStruct, SerializeTuple, SerializeTupleStruct,
};
use serde::Serialize;
use std::fmt::Display;
use super::Error;
impl Serialize for Value {
fn serialize<S>(&self, s: S) -> Result<S::Ok, S::Error>
where
S: ser::Serializer,
{
match *self {
Value::Null => s.serialize_unit(),
Value::Bool(v) => s.serialize_bool(v),
Value::I32(v) => s.serialize_i32(v),
Value::I64(v) => s.serialize_i64(v),
Value::U32(v) => s.serialize_u32(v),
Value::U64(v) => s.serialize_u64(v),
Value::F32(v) => s.serialize_f32(v),
Value::F64(v) => s.serialize_f64(v),
Value::String(ref v) => s.serialize_str(v),
Value::Binary(ref v) => s.serialize_bytes(v),
Value::Array(ref array) => {
let mut state = s.serialize_seq(Some(array.len()))?;
for item in array {
state.serialize_element(item)?;
}
state.end()
}
Value::Map(ref map) => {
let mut state = s.serialize_map(Some(map.len()))?;
for (key, val) in map {
state.serialize_entry(key, val)?;
}
state.end()
}
Value::Ext(ref ty, ref value) => s.serialize_newtype_struct(ty, value),
}
}
}
impl ser::Error for Error {
fn custom<T: Display>(msg: T) -> Self {
Error::Syntax(format!("{}", msg))
}
}
struct Serializer;
#[inline]
pub fn to_value<T: Serialize>(mut value: T) -> Result<Value, Error> {
let type_name = std::any::type_name::<T>();
if type_name == std::any::type_name::<Value>() {
let addr = std::ptr::addr_of_mut!(value);
let v = unsafe { &mut *(addr as *mut _ as *mut Value) };
return Ok(std::mem::take(v));
}
if type_name == std::any::type_name::<&Value>() {
let addr = std::ptr::addr_of!(value);
return Ok(unsafe { *(addr as *const _ as *const &Value) }.clone());
}
if type_name == std::any::type_name::<&&Value>() {
let addr = std::ptr::addr_of!(value);
return Ok(unsafe { **(addr as *const _ as *const &&Value) }.clone());
}
value.serialize(Serializer)
}
#[inline]
pub fn to_value_def<T: Serialize>(value: T) -> Value {
to_value(value).unwrap_or_default()
}
impl ser::Serializer for Serializer {
type Ok = Value;
type Error = Error;
type SerializeSeq = SerializeVec;
type SerializeTuple = SerializeVec;
type SerializeTupleStruct = SerializeTupleStructVec;
type SerializeTupleVariant = SerializeTupleVariant;
type SerializeMap = DefaultSerializeMap;
type SerializeStruct = DefaultSerializeMap;
type SerializeStructVariant = DefaultSerializeMap;
#[inline]
fn serialize_bool(self, val: bool) -> Result<Self::Ok, Self::Error> {
Ok(Value::Bool(val))
}
#[inline]
fn serialize_i8(self, val: i8) -> Result<Self::Ok, Self::Error> {
Ok(Value::I32(val as i32))
}
#[inline]
fn serialize_i16(self, val: i16) -> Result<Self::Ok, Self::Error> {
Ok(Value::I32(val as i32))
}
#[inline]
fn serialize_i32(self, val: i32) -> Result<Self::Ok, Self::Error> {
Ok(Value::I32(val))
}
#[inline]
fn serialize_i64(self, val: i64) -> Result<Self::Ok, Self::Error> {
Ok(Value::I64(val))
}
#[inline]
fn serialize_u8(self, val: u8) -> Result<Self::Ok, Self::Error> {
Ok(Value::U32(val as u32))
}
#[inline]
fn serialize_u16(self, val: u16) -> Result<Self::Ok, Self::Error> {
Ok(Value::U32(val as u32))
}
#[inline]
fn serialize_u32(self, val: u32) -> Result<Self::Ok, Self::Error> {
Ok(Value::U32(val))
}
#[inline]
fn serialize_u64(self, val: u64) -> Result<Self::Ok, Self::Error> {
Ok(Value::U64(val))
}
#[inline]
fn serialize_f32(self, val: f32) -> Result<Self::Ok, Self::Error> {
Ok(Value::F32(val))
}
#[inline]
fn serialize_f64(self, val: f64) -> Result<Self::Ok, Self::Error> {
Ok(Value::F64(val))
}
#[inline]
fn serialize_char(self, val: char) -> Result<Self::Ok, Self::Error> {
let mut buf = String::new();
buf.push(val);
self.serialize_str(&buf)
}
#[inline]
fn serialize_str(self, val: &str) -> Result<Self::Ok, Self::Error> {
Ok(Value::String(val.into()))
}
#[inline]
fn serialize_bytes(self, val: &[u8]) -> Result<Self::Ok, Self::Error> {
Ok(Value::Binary(val.into()))
}
#[inline]
fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
Ok(Value::Null)
}
#[inline]
fn serialize_unit_struct(self, _name: &'static str) -> Result<Self::Ok, Self::Error> {
Ok(Value::Array(Vec::new()))
}
#[inline]
fn serialize_unit_variant(
self,
_name: &'static str,
_idx: u32,
variant: &'static str,
) -> Result<Self::Ok, Self::Error> {
Ok(Value::String(variant.to_string()))
}
#[inline]
fn serialize_newtype_struct<T: ?Sized>(
self,
name: &'static str,
value: &T,
) -> Result<Self::Ok, Self::Error>
where
T: Serialize,
{
return Ok(Value::Ext(name, Box::new(value.serialize(self)?)));
}
fn serialize_newtype_variant<T: ?Sized>(
self,
_name: &'static str,
_idx: u32,
variant: &'static str,
value: &T,
) -> Result<Self::Ok, Self::Error>
where
T: Serialize,
{
let mut values = ValueMap::with_capacity(1);
values.insert(Value::String(variant.to_string()), value.serialize(self)?);
Ok(Value::Map(values))
}
#[inline]
fn serialize_none(self) -> Result<Self::Ok, Self::Error> {
self.serialize_unit()
}
#[inline]
fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error>
where
T: Serialize,
{
value.serialize(self)
}
fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
let se = SerializeVec {
vec: Vec::with_capacity(len.unwrap_or(0)),
};
Ok(se)
}
fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Error> {
self.serialize_seq(Some(len))
}
fn serialize_tuple_struct(
self,
name: &'static str,
_len: usize,
) -> Result<Self::SerializeTupleStruct, Self::Error> {
Ok(SerializeTupleStructVec {
name: name,
vec: vec![],
})
}
fn serialize_tuple_variant(
self,
_name: &'static str,
_idx: u32,
_variant: &'static str,
_len: usize,
) -> Result<Self::SerializeTupleVariant, Error> {
return Err(Error::Syntax(
"rbs Serialize unimplemented serialize_tuple_variant".to_string(),
));
}
fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap, Error> {
let se = DefaultSerializeMap {
map: ValueMap::with_capacity(len.unwrap_or(0)),
next_key: None,
};
Ok(se)
}
#[inline]
fn serialize_struct(
self,
_name: &'static str,
len: usize,
) -> Result<Self::SerializeStruct, Error> {
let se = DefaultSerializeMap {
map: ValueMap::with_capacity(len),
next_key: None,
};
Ok(se)
}
#[inline]
fn serialize_struct_variant(
self,
_name: &'static str,
_idx: u32,
_variant: &'static str,
_len: usize,
) -> Result<Self::SerializeStructVariant, Error> {
return Err(Error::Syntax(
"rbs Serialize unimplemented serialize_struct_variant".to_string(),
));
}
}
#[doc(hidden)]
pub struct SerializeVec {
vec: Vec<Value>,
}
#[doc(hidden)]
pub struct SerializeTupleStructVec {
pub name: &'static str,
pub vec: Vec<Value>,
}
impl SerializeTupleStruct for SerializeTupleStructVec {
type Ok = Value;
type Error = Error;
fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: Serialize,
{
self.vec.push(to_value(&value)?);
Ok(())
}
fn end(self) -> Result<Self::Ok, Self::Error> {
Ok(Value::Ext(self.name, Box::new(Value::Array(self.vec))))
}
}
#[doc(hidden)]
pub struct SerializeTupleVariant {
idx: u32,
vec: Vec<Value>,
}
#[doc(hidden)]
pub struct DefaultSerializeMap {
map: ValueMap,
next_key: Option<Value>,
}
#[doc(hidden)]
pub struct SerializeStructVariant {
idx: u32,
vec: Vec<Value>,
}
impl SerializeSeq for SerializeVec {
type Ok = Value;
type Error = Error;
#[inline]
fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
self.vec.push(to_value(&value)?);
Ok(())
}
#[inline]
fn end(self) -> Result<Value, Error> {
Ok(Value::Array(self.vec))
}
}
impl SerializeTuple for SerializeVec {
type Ok = Value;
type Error = Error;
#[inline]
fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
ser::SerializeSeq::serialize_element(self, value)
}
#[inline]
fn end(self) -> Result<Value, Error> {
ser::SerializeSeq::end(self)
}
}
impl SerializeTupleStruct for SerializeVec {
type Ok = Value;
type Error = Error;
#[inline]
fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
ser::SerializeSeq::serialize_element(self, value)
}
#[inline]
fn end(self) -> Result<Value, Error> {
ser::SerializeSeq::end(self)
}
}
impl ser::SerializeTupleVariant for SerializeTupleVariant {
type Ok = Value;
type Error = Error;
#[inline]
fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
self.vec.push(to_value(&value)?);
Ok(())
}
#[inline]
fn end(self) -> Result<Value, Error> {
Ok(Value::Array(vec![
Value::from(self.idx),
Value::Array(self.vec),
]))
}
}
impl ser::SerializeMap for DefaultSerializeMap {
type Ok = Value;
type Error = Error;
#[inline]
fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), Error>
where
T: Serialize,
{
self.next_key = Some(to_value(key)?);
Ok(())
}
fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: ser::Serialize,
{
let key = self
.next_key
.take()
.expect("`serialize_value` called before `serialize_key`");
self.map.insert(key, to_value(&value)?);
Ok(())
}
#[inline]
fn end(self) -> Result<Value, Error> {
Ok(Value::Map(self.map))
}
}
impl ser::SerializeStruct for DefaultSerializeMap {
type Ok = Value;
type Error = Error;
fn serialize_field<T: ?Sized>(
&mut self,
key: &'static str,
value: &T,
) -> Result<(), Self::Error>
where
T: Serialize,
{
self.map.insert(Value::String(key.to_string()), to_value(&value)?);
Ok(())
}
fn end(self) -> Result<Self::Ok, Self::Error> {
Ok(Value::Map(self.map))
}
}
impl ser::SerializeStructVariant for DefaultSerializeMap {
type Ok = Value;
type Error = Error;
fn serialize_field<T: ?Sized>(
&mut self,
key: &'static str,
value: &T,
) -> Result<(), Self::Error>
where
T: Serialize,
{
self.map.insert(Value::String(key.to_string()), to_value(&value)?);
Ok(())
}
fn end(self) -> Result<Self::Ok, Self::Error> {
Ok(Value::Map(self.map))
}
}
impl SerializeStruct for SerializeVec {
type Ok = Value;
type Error = Error;
#[inline]
fn serialize_field<T: ?Sized>(&mut self, _key: &'static str, value: &T) -> Result<(), Error>
where
T: Serialize,
{
ser::SerializeSeq::serialize_element(self, value)
}
#[inline]
fn end(self) -> Result<Value, Error> {
ser::SerializeSeq::end(self)
}
}
impl ser::SerializeStructVariant for SerializeStructVariant {
type Ok = Value;
type Error = Error;
#[inline]
fn serialize_field<T: ?Sized>(&mut self, _key: &'static str, value: &T) -> Result<(), Error>
where
T: Serialize,
{
self.vec.push(to_value(&value)?);
Ok(())
}
#[inline]
fn end(self) -> Result<Value, Error> {
Ok(Value::Array(vec![
Value::from(self.idx),
Value::Array(self.vec),
]))
}
}