| use crate::ser::Error; |
| use serde::ser; |
| use std::str; |
| |
| pub struct PartSerializer<S> { |
| sink: S, |
| } |
| |
| impl<S: Sink> PartSerializer<S> { |
| pub fn new(sink: S) -> Self { |
| PartSerializer { sink } |
| } |
| } |
| |
| pub trait Sink: Sized { |
| type Ok; |
| |
| fn serialize_static_str( |
| self, |
| value: &'static str, |
| ) -> Result<Self::Ok, Error>; |
| |
| fn serialize_str(self, value: &str) -> Result<Self::Ok, Error>; |
| fn serialize_string(self, value: String) -> Result<Self::Ok, Error>; |
| fn serialize_none(self) -> Result<Self::Ok, Error>; |
| |
| fn serialize_some<T: ?Sized + ser::Serialize>( |
| self, |
| value: &T, |
| ) -> Result<Self::Ok, Error>; |
| |
| fn unsupported(self) -> Error; |
| } |
| |
| impl<S: Sink> ser::Serializer for PartSerializer<S> { |
| type Ok = S::Ok; |
| type Error = Error; |
| type SerializeSeq = ser::Impossible<S::Ok, Error>; |
| type SerializeTuple = ser::Impossible<S::Ok, Error>; |
| type SerializeTupleStruct = ser::Impossible<S::Ok, Error>; |
| type SerializeTupleVariant = ser::Impossible<S::Ok, Error>; |
| type SerializeMap = ser::Impossible<S::Ok, Error>; |
| type SerializeStruct = ser::Impossible<S::Ok, Error>; |
| type SerializeStructVariant = ser::Impossible<S::Ok, Error>; |
| |
| fn serialize_bool(self, v: bool) -> Result<S::Ok, Error> { |
| self.sink |
| .serialize_static_str(if v { "true" } else { "false" }) |
| } |
| |
| fn serialize_i8(self, v: i8) -> Result<S::Ok, Error> { |
| self.serialize_integer(v) |
| } |
| |
| fn serialize_i16(self, v: i16) -> Result<S::Ok, Error> { |
| self.serialize_integer(v) |
| } |
| |
| fn serialize_i32(self, v: i32) -> Result<S::Ok, Error> { |
| self.serialize_integer(v) |
| } |
| |
| fn serialize_i64(self, v: i64) -> Result<S::Ok, Error> { |
| self.serialize_integer(v) |
| } |
| |
| fn serialize_u8(self, v: u8) -> Result<S::Ok, Error> { |
| self.serialize_integer(v) |
| } |
| |
| fn serialize_u16(self, v: u16) -> Result<S::Ok, Error> { |
| self.serialize_integer(v) |
| } |
| |
| fn serialize_u32(self, v: u32) -> Result<S::Ok, Error> { |
| self.serialize_integer(v) |
| } |
| |
| fn serialize_u64(self, v: u64) -> Result<S::Ok, Error> { |
| self.serialize_integer(v) |
| } |
| |
| fn serialize_u128(self, v: u128) -> Result<S::Ok, Error> { |
| self.serialize_integer(v) |
| } |
| |
| fn serialize_i128(self, v: i128) -> Result<S::Ok, Error> { |
| self.serialize_integer(v) |
| } |
| |
| fn serialize_f32(self, v: f32) -> Result<S::Ok, Error> { |
| self.serialize_floating(v) |
| } |
| |
| fn serialize_f64(self, v: f64) -> Result<S::Ok, Error> { |
| self.serialize_floating(v) |
| } |
| |
| fn serialize_char(self, v: char) -> Result<S::Ok, Error> { |
| self.sink.serialize_string(v.to_string()) |
| } |
| |
| fn serialize_str(self, value: &str) -> Result<S::Ok, Error> { |
| self.sink.serialize_str(value) |
| } |
| |
| fn serialize_bytes(self, value: &[u8]) -> Result<S::Ok, Error> { |
| match str::from_utf8(value) { |
| Ok(value) => self.sink.serialize_str(value), |
| Err(err) => Err(Error::Utf8(err)), |
| } |
| } |
| |
| fn serialize_unit(self) -> Result<S::Ok, Error> { |
| Err(self.sink.unsupported()) |
| } |
| |
| fn serialize_unit_struct(self, name: &'static str) -> Result<S::Ok, Error> { |
| self.sink.serialize_static_str(name) |
| } |
| |
| fn serialize_unit_variant( |
| self, |
| _name: &'static str, |
| _variant_index: u32, |
| variant: &'static str, |
| ) -> Result<S::Ok, Error> { |
| self.sink.serialize_static_str(variant) |
| } |
| |
| fn serialize_newtype_struct<T: ?Sized + ser::Serialize>( |
| self, |
| _name: &'static str, |
| value: &T, |
| ) -> Result<S::Ok, Error> { |
| value.serialize(self) |
| } |
| |
| fn serialize_newtype_variant<T: ?Sized + ser::Serialize>( |
| self, |
| _name: &'static str, |
| _variant_index: u32, |
| _variant: &'static str, |
| _value: &T, |
| ) -> Result<S::Ok, Error> { |
| Err(self.sink.unsupported()) |
| } |
| |
| fn serialize_none(self) -> Result<S::Ok, Error> { |
| self.sink.serialize_none() |
| } |
| |
| fn serialize_some<T: ?Sized + ser::Serialize>( |
| self, |
| value: &T, |
| ) -> Result<S::Ok, Error> { |
| self.sink.serialize_some(value) |
| } |
| |
| fn serialize_seq( |
| self, |
| _len: Option<usize>, |
| ) -> Result<Self::SerializeSeq, Error> { |
| Err(self.sink.unsupported()) |
| } |
| |
| fn serialize_tuple( |
| self, |
| _len: usize, |
| ) -> Result<Self::SerializeTuple, Error> { |
| Err(self.sink.unsupported()) |
| } |
| |
| fn serialize_tuple_struct( |
| self, |
| _name: &'static str, |
| _len: usize, |
| ) -> Result<Self::SerializeTuple, Error> { |
| Err(self.sink.unsupported()) |
| } |
| |
| fn serialize_tuple_variant( |
| self, |
| _name: &'static str, |
| _variant_index: u32, |
| _variant: &'static str, |
| _len: usize, |
| ) -> Result<Self::SerializeTupleVariant, Error> { |
| Err(self.sink.unsupported()) |
| } |
| |
| fn serialize_map( |
| self, |
| _len: Option<usize>, |
| ) -> Result<Self::SerializeMap, Error> { |
| Err(self.sink.unsupported()) |
| } |
| |
| fn serialize_struct( |
| self, |
| _name: &'static str, |
| _len: usize, |
| ) -> Result<Self::SerializeStruct, Error> { |
| Err(self.sink.unsupported()) |
| } |
| |
| fn serialize_struct_variant( |
| self, |
| _name: &'static str, |
| _variant_index: u32, |
| _variant: &'static str, |
| _len: usize, |
| ) -> Result<Self::SerializeStructVariant, Error> { |
| Err(self.sink.unsupported()) |
| } |
| } |
| |
| impl<S: Sink> PartSerializer<S> { |
| fn serialize_integer<I>(self, value: I) -> Result<S::Ok, Error> |
| where |
| I: itoa::Integer, |
| { |
| let mut buf = itoa::Buffer::new(); |
| let part = buf.format(value); |
| ser::Serializer::serialize_str(self, part) |
| } |
| |
| fn serialize_floating<F>(self, value: F) -> Result<S::Ok, Error> |
| where |
| F: ryu::Float, |
| { |
| let mut buf = ryu::Buffer::new(); |
| let part = buf.format(value); |
| ser::Serializer::serialize_str(self, part) |
| } |
| } |