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-rw-r--r--src/ser/pair.rs330
1 files changed, 330 insertions, 0 deletions
diff --git a/src/ser/pair.rs b/src/ser/pair.rs
new file mode 100644
index 0000000..ae42db0
--- /dev/null
+++ b/src/ser/pair.rs
@@ -0,0 +1,330 @@
+use ser::{Error, key, value};
+use serde::{Serialize, Serializer};
+use std::borrow::Cow;
+use url::form_urlencoded;
+
+pub struct PairSerializer<'target, Target>(
+ &'target mut form_urlencoded::Serializer<Target>)
+ where Target: 'target + form_urlencoded::Target;
+
+impl<'target, Target> PairSerializer<'target, Target>
+ where Target: 'target + form_urlencoded::Target
+{
+ pub fn new(
+ serializer: &'target mut form_urlencoded::Serializer<Target>)
+ -> Self {
+ PairSerializer(serializer)
+ }
+}
+
+pub struct TupleState(Option<Option<Cow<'static, str>>>);
+pub struct TupleStructState(TupleState);
+
+impl<'target, Target> Serializer for PairSerializer<'target, Target>
+ where Target: 'target + form_urlencoded::Target
+{
+ type Error = Error;
+ type SeqState = ();
+ type TupleState = TupleState;
+ type TupleStructState = TupleStructState;
+ type TupleVariantState = ();
+ type MapState = ();
+ type StructState = ();
+ type StructVariantState = ();
+
+ fn serialize_bool(&mut self, _v: bool) -> Result<(), Error> {
+ Err(Error::Custom("booleans are not supported values".into()))
+ }
+
+ fn serialize_isize(&mut self, _v: isize) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_i8(&mut self, _v: i8) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_i16(&mut self, _v: i16) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_i32(&mut self, _v: i32) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_i64(&mut self, _v: i64) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_usize(&mut self, _v: usize) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_u8(&mut self, _v: u8) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_u16(&mut self, _v: u16) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_u32(&mut self, _v: u32) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_u64(&mut self, _v: u64) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_f32(&mut self, _v: f32) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_f64(&mut self, _v: f64) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_char(&mut self, _v: char) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_str(&mut self, _value: &str) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_bytes(&mut self, _value: &[u8]) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_unit(&mut self) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_unit_struct(
+ &mut self, _name: &'static str)
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_unit_variant(
+ &mut self,
+ _name: &'static str,
+ _variant_index: usize,
+ _variant: &'static str)
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_newtype_struct<T>(
+ &mut self, _name: &'static str, value: T)
+ -> Result<(), Error>
+ where T: Serialize
+ {
+ value.serialize(self)
+ }
+
+ fn serialize_newtype_variant<T>(
+ &mut self,
+ _name: &'static str,
+ _variant_index: usize,
+ _variant: &'static str,
+ _value: T)
+ -> Result<(), Error>
+ where T: Serialize
+ {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_none(&mut self) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_some<T>(&mut self, _value: T) -> Result<(), Error>
+ where T: Serialize
+ {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_seq(&mut self, _len: Option<usize>)
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_seq_elt<T>(&mut self, _state: &mut (), _value: T)
+ -> Result<(), Error>
+ where T: Serialize
+ {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_seq_end(&mut self, _state: ()) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_seq_fixed_size(&mut self, _size: usize)
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_tuple(&mut self, len: usize) -> Result<TupleState, Error> {
+ if len == 2 {
+ Ok(TupleState(None))
+ } else {
+ Err(Error::unsupported_pair())
+ }
+ }
+
+ fn serialize_tuple_elt<T>(
+ &mut self, state: &mut TupleState, value: T)
+ -> Result<(), Error>
+ where T: Serialize
+ {
+ match state.0.take() {
+ None => {
+ let mut key = None;
+ {
+ let mut key_serializer =
+ key::MapKeySerializer::new(&mut key);
+ try!(value.serialize(&mut key_serializer));
+ }
+ state.0 = Some(key);
+ Ok(())
+ },
+ Some(ref mut key) => {
+ {
+ let mut value_serializer =
+ value::ValueSerializer::new(key, &mut self.0).unwrap();
+ try!(value.serialize(&mut value_serializer));
+ }
+ state.0 = Some(None);
+ Ok(())
+ }
+ }
+ }
+
+ fn serialize_tuple_end(&mut self, _state: TupleState) -> Result<(), Error> {
+ Ok(())
+ }
+
+ fn serialize_tuple_struct(
+ &mut self, _name: &'static str, len: usize)
+ -> Result<TupleStructState, Error> {
+ self.serialize_tuple(len).map(TupleStructState)
+ }
+
+ fn serialize_tuple_struct_elt<T>(
+ &mut self, state: &mut TupleStructState, value: T)
+ -> Result<(), Error>
+ where T: Serialize
+ {
+ self.serialize_tuple_elt(&mut state.0, value)
+ }
+
+ fn serialize_tuple_struct_end(
+ &mut self, _state: TupleStructState)
+ -> Result<(), Error> {
+ Ok(())
+ }
+
+ fn serialize_tuple_variant(
+ &mut self,
+ _name: &'static str,
+ _variant_index: usize,
+ _variant: &'static str,
+ _len: usize)
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_tuple_variant_elt<T>(
+ &mut self, _state: &mut (), _value: T)
+ -> Result<(), Error>
+ where T: Serialize
+ {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_tuple_variant_end(
+ &mut self, _state: ())
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_map(
+ &mut self, _len: Option<usize>)
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_map_key<T>(
+ &mut self, _state: &mut (), _key: T)
+ -> Result<(), Error>
+ where T: Serialize
+ {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_map_value<T>(
+ &mut self, _state: &mut (), _value: T)
+ -> Result<(), Error>
+ where T: Serialize
+ {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_map_end(&mut self, _state: ()) -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_struct(&mut self, _name: &'static str, _len: usize)
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_struct_elt<T>(
+ &mut self,
+ _state: &mut (),
+ _key: &'static str,
+ _value: T)
+ -> Result<(), Error>
+ where T: Serialize
+ {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_struct_end(
+ &mut self, _state: ())
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_struct_variant(
+ &mut self,
+ _name: &'static str,
+ _variant_index: usize,
+ _variant: &'static str,
+ _len: usize)
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+ fn serialize_struct_variant_elt<T>(
+ &mut self,
+ _state: &mut (),
+ _key: &'static str,
+ _value: T)
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+
+ fn serialize_struct_variant_end(
+ &mut self, _state: ())
+ -> Result<(), Error> {
+ Err(Error::unsupported_pair())
+ }
+}
+
+impl Error {
+ fn unsupported_pair() -> Self {
+ Error::Custom("unsupported pair".into())
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-03-31 23:48:59 +0000