use std::mem;
use serde::ser;
use Value;
use super::{Encoder, Error, EncoderState, State};
impl Encoder {
fn table_begin(&mut self) -> Result<Self, Error> {
match self.state {
State::NextMapKey => Err(Error::InvalidMapKeyLocation),
_ => Ok(mem::replace(self, Encoder::new()))
}
}
fn table_end(&mut self, mut state: Self) -> Result<(), Error> {
match state.state {
State::NextKey(key) => {
mem::swap(&mut self.toml, &mut state.toml);
self.toml.insert(key, Value::Table(state.toml));
},
State::NextArray(mut arr) => {
mem::swap(&mut self.toml, &mut state.toml);
arr.push(Value::Table(state.toml));
self.state = State::NextArray(arr);
},
State::Start => {},
State::NextMapKey => unreachable!(),
}
Ok(())
}
}
impl ser::Serializer for Encoder {
type Error = Error;
type MapState = Self;
type StructState = Self;
type StructVariantState = Self;
type SeqState = EncoderState;
type TupleState = EncoderState;
type TupleStructState = EncoderState;
type TupleVariantState = EncoderState;
fn serialize_bool(&mut self, v: bool) -> Result<(), Error> {
self.emit_value(Value::Boolean(v))
}
fn serialize_i64(&mut self, v: i64) -> Result<(), Error> {
self.emit_value(Value::Integer(v))
}
fn serialize_u64(&mut self, v: u64) -> Result<(), Error> {
self.serialize_i64(v as i64)
}
fn serialize_isize(&mut self, v: isize) -> Result<(), Error> {
self.serialize_i64(v as i64)
}
fn serialize_usize(&mut self, v: usize) -> Result<(), Error> {
self.serialize_i64(v as i64)
}
fn serialize_i8(&mut self, v: i8) -> Result<(), Error> {
self.serialize_i64(v as i64)
}
fn serialize_u8(&mut self, v: u8) -> Result<(), Error> {
self.serialize_i64(v as i64)
}
fn serialize_i16(&mut self, v: i16) -> Result<(), Error> {
self.serialize_i64(v as i64)
}
fn serialize_u16(&mut self, v: u16) -> Result<(), Error> {
self.serialize_i64(v as i64)
}
fn serialize_i32(&mut self, v: i32) -> Result<(), Error> {
self.serialize_i64(v as i64)
}
fn serialize_u32(&mut self, v: u32) -> Result<(), Error> {
self.serialize_i64(v as i64)
}
fn serialize_f32(&mut self, v: f32) -> Result<(), Error> {
self.serialize_f64(v as f64)
}
fn serialize_f64(&mut self, v: f64) -> Result<(), Error> {
self.emit_value(Value::Float(v))
}
fn serialize_str(&mut self, value: &str) -> Result<(), Error> {
self.emit_value(Value::String(value.to_string()))
}
fn serialize_unit_struct(&mut self, _name: &'static str) -> Result<(), Error> {
Ok(())
}
fn serialize_unit(&mut self) -> Result<(), Error> {
Ok(())
}
fn serialize_none(&mut self) -> Result<(), Error> {
self.emit_none()
}
fn serialize_char(&mut self, c: char) -> Result<(), Error> {
self.serialize_str(&c.to_string())
}
fn serialize_some<V>(&mut self, value: V) -> Result<(), Error>
where V: ser::Serialize
{
value.serialize(self)
}
fn serialize_bytes(&mut self, v: &[u8]) -> Result<(), Error> {
let mut state = try!(self.serialize_seq(Some(v.len())));
for c in v {
try!(self.serialize_seq_elt(&mut state, c));
}
self.serialize_seq_end(state)
}
fn serialize_seq_fixed_size(&mut self, len: usize)
-> Result<EncoderState, Error> {
self.serialize_seq(Some(len))
}
fn serialize_seq(&mut self, _len: Option<usize>)
-> Result<EncoderState, Error> {
self.seq_begin().map(|s| EncoderState { inner: s })
}
fn serialize_seq_elt<T>(&mut self,
_state: &mut EncoderState,
value: T) -> Result<(), Error>
where T: ser::Serialize
{
value.serialize(self)
}
fn serialize_seq_end(&mut self, state: EncoderState) -> Result<(), Error> {
self.seq_end(state.inner)
}
fn serialize_tuple(&mut self, len: usize)
-> Result<EncoderState, Error> {
self.serialize_seq(Some(len))
}
fn serialize_tuple_elt<T>(&mut self,
state: &mut EncoderState,
value: T) -> Result<(), Error>
where T: ser::Serialize
{
self.serialize_seq_elt(state, value)
}
fn serialize_tuple_end(&mut self, state: EncoderState) -> Result<(), Error> {
self.serialize_seq_end(state)
}
fn serialize_tuple_struct(&mut self,
_name: &'static str,
len: usize) -> Result<EncoderState, Error> {
self.serialize_seq(Some(len))
}
fn serialize_tuple_struct_elt<T>(&mut self,
state: &mut EncoderState,
value: T) -> Result<(), Error>
where T: ser::Serialize
{
self.serialize_seq_elt(state, value)
}
fn serialize_tuple_struct_end(&mut self, state: EncoderState)
-> Result<(), Error> {
self.serialize_seq_end(state)
}
fn serialize_tuple_variant(&mut self,
_name: &'static str,
_id: usize,
_variant: &'static str,
len: usize) -> Result<EncoderState, Error> {
self.serialize_seq(Some(len))
}
fn serialize_tuple_variant_elt<T>(&mut self,
state: &mut EncoderState,
value: T) -> Result<(), Error>
where T: ser::Serialize
{
self.serialize_seq_elt(state, value)
}
fn serialize_tuple_variant_end(&mut self, state: EncoderState)
-> Result<(), Error> {
self.serialize_seq_end(state)
}
fn serialize_map(&mut self, _len: Option<usize>) -> Result<Self, Error> {
self.table_begin()
}
fn serialize_map_key<K>(&mut self,
_state: &mut Encoder,
key: K) -> Result<(), Error>
where K: ser::Serialize
{
self.table_key(|me| key.serialize(me))
}
fn serialize_map_value<V>(&mut self,
_state: &mut Encoder,
value: V) -> Result<(), Error>
where V: ser::Serialize
{
value.serialize(self)
}
fn serialize_map_end(&mut self, state: Self) -> Result<(), Error> {
self.table_end(state)
}
fn serialize_struct(&mut self,
_name: &'static str,
len: usize) -> Result<Self, Error> {
self.serialize_map(Some(len))
}
fn serialize_struct_elt<V>(&mut self,
state: &mut Encoder,
key: &'static str,
value: V) -> Result<(), Error>
where V: ser::Serialize
{
try!(self.serialize_map_key(state, key));
self.serialize_map_value(state, value)
}
fn serialize_struct_end(&mut self, state: Self) -> Result<(), Error> {
self.serialize_map_end(state)
}
fn serialize_struct_variant(&mut self,
_name: &'static str,
_id: usize,
_variant: &'static str,
len: usize) -> Result<Self, Error> {
self.serialize_map(Some(len))
}
fn serialize_struct_variant_elt<V>(&mut self,
state: &mut Encoder,
key: &'static str,
value: V) -> Result<(), Error>
where V: ser::Serialize
{
try!(self.serialize_map_key(state, key));
self.serialize_map_value(state, value)
}
fn serialize_struct_variant_end(&mut self, state: Self) -> Result<(), Error> {
self.serialize_map_end(state)
}
fn serialize_newtype_struct<T>(&mut self,
_name: &'static str,
value: T) -> Result<(), Self::Error>
where T: ser::Serialize,
{
value.serialize(self)
}
fn serialize_newtype_variant<T>(&mut self,
_name: &'static str,
_variant_index: usize,
_variant: &'static str,
value: T) -> Result<(), Self::Error>
where T: ser::Serialize,
{
value.serialize(self)
}
fn serialize_unit_variant(&mut self,
_name: &'static str,
_variant_index: usize,
_variant: &'static str,
) -> Result<(), Self::Error>
{
Ok(())
}
}
impl ser::Serialize for Value {
fn serialize<E>(&self, e: &mut E) -> Result<(), E::Error>
where E: ser::Serializer
{
match *self {
Value::String(ref s) => e.serialize_str(s),
Value::Integer(i) => e.serialize_i64(i),
Value::Float(f) => e.serialize_f64(f),
Value::Boolean(b) => e.serialize_bool(b),
Value::Datetime(ref s) => e.serialize_str(s),
Value::Array(ref a) => {
let mut state = try!(e.serialize_seq(Some(a.len())));
for el in a.iter() {
try!(e.serialize_seq_elt(&mut state, el));
}
e.serialize_seq_end(state)
}
Value::Table(ref t) => {
let mut state = try!(e.serialize_map(Some(t.len())));
for (k, v) in t.iter() {
try!(e.serialize_map_key(&mut state, k));
try!(e.serialize_map_value(&mut state, v));
}
e.serialize_map_end(state)
}
}
}
}
impl ser::Error for Error {
fn custom<T: Into<String>>(msg: T) -> Error {
Error::Custom(msg.into())
}
}