use std::str;
use form_urlencoded::{Serializer as UrlEncodedSerializer, Target as UrlEncodedTarget};
use serde::ser::{Serialize, SerializeSeq};
use super::{
part::{PartSerializer, Sink},
Error,
};
pub struct ValueSink<'input, 'key, 'target, Target>
where
Target: UrlEncodedTarget,
{
urlencoder: &'target mut UrlEncodedSerializer<'input, Target>,
key: &'key str,
nested: bool,
}
impl<'input, 'key, 'target, Target> ValueSink<'input, 'key, 'target, Target>
where
Target: 'target + UrlEncodedTarget,
{
pub fn new(
urlencoder: &'target mut UrlEncodedSerializer<'input, Target>,
key: &'key str,
) -> Self {
ValueSink { urlencoder, key, nested: false }
}
}
impl<'input, 'key, 'target, Target> Sink for ValueSink<'input, 'key, 'target, Target>
where
Target: 'target + UrlEncodedTarget,
{
type Ok = ();
type SerializeSeq = Self;
fn serialize_str(self, value: &str) -> Result<(), Error> {
self.urlencoder.append_pair(self.key, value);
Ok(())
}
fn serialize_static_str(self, value: &'static str) -> Result<(), Error> {
self.serialize_str(value)
}
fn serialize_string(self, value: String) -> Result<(), Error> {
self.serialize_str(&value)
}
fn serialize_none(self) -> Result<Self::Ok, Error> {
Ok(())
}
fn serialize_some<T: ?Sized + Serialize>(self, value: &T) -> Result<Self::Ok, Error> {
value.serialize(PartSerializer::new(self))
}
fn serialize_seq(self) -> Result<Self, Error> {
if self.nested {
Err(self.unsupported())
} else {
Ok(self)
}
}
fn unsupported(self) -> Error {
Error::unsupported_value()
}
}
impl<'input, 'key, 'target, Target> SerializeSeq for ValueSink<'input, 'key, 'target, Target>
where
Target: 'target + UrlEncodedTarget,
{
type Ok = ();
type Error = Error;
fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error>
where
T: Serialize,
{
value.serialize(PartSerializer::new(ValueSink {
urlencoder: self.urlencoder,
key: self.key,
nested: true,
}))
}
fn end(self) -> Result<Self::Ok, Self::Error> {
Ok(())
}
}