| use std::io::Write; |
| |
| use serde::ser::{Impossible, Serialize}; |
| |
| use crate::error::{Error, Result}; |
| |
| pub fn to_plain_string<T>(value: &T) -> Result<String> |
| where |
| T: ?Sized + Serialize, |
| { |
| let mut writer = Vec::with_capacity(128); |
| value.serialize(&mut PlainStringSerializer::new(&mut writer))?; |
| |
| let string = String::from_utf8(writer)?; |
| Ok(string) |
| } |
| |
| struct PlainStringSerializer<W: Write> { |
| writer: W, |
| } |
| |
| impl<W: Write> PlainStringSerializer<W> { |
| fn new(writer: W) -> Self { |
| PlainStringSerializer { writer } |
| } |
| |
| fn characters(&mut self, s: &str) -> Result<()> { |
| write!(self.writer, "{}", s)?; |
| Ok(()) |
| } |
| } |
| |
| impl<'ser, W: 'ser + Write> serde::ser::Serializer for &'ser mut PlainStringSerializer<W> { |
| type Ok = (); |
| type Error = Error; |
| |
| type SerializeSeq = Impossible<Self::Ok, Self::Error>; |
| type SerializeTuple = Impossible<Self::Ok, Self::Error>; |
| type SerializeTupleStruct = Impossible<Self::Ok, Self::Error>; |
| type SerializeTupleVariant = Impossible<Self::Ok, Self::Error>; |
| type SerializeMap = Impossible<Self::Ok, Self::Error>; |
| type SerializeStruct = Impossible<Self::Ok, Self::Error>; |
| type SerializeStructVariant = Impossible<Self::Ok, Self::Error>; |
| |
| fn serialize_bool(self, v: bool) -> Result<Self::Ok> { |
| self.characters(&v.to_string()) |
| } |
| |
| fn serialize_i8(self, v: i8) -> Result<Self::Ok> { |
| self.serialize_i64(i64::from(v)) |
| } |
| |
| fn serialize_i16(self, v: i16) -> Result<Self::Ok> { |
| self.serialize_i64(i64::from(v)) |
| } |
| |
| fn serialize_i32(self, v: i32) -> Result<Self::Ok> { |
| self.serialize_i64(i64::from(v)) |
| } |
| |
| fn serialize_i64(self, v: i64) -> Result<Self::Ok> { |
| self.characters(&v.to_string()) |
| } |
| |
| fn serialize_u8(self, v: u8) -> Result<Self::Ok> { |
| self.serialize_u64(u64::from(v)) |
| } |
| |
| fn serialize_u16(self, v: u16) -> Result<Self::Ok> { |
| self.serialize_u64(u64::from(v)) |
| } |
| |
| fn serialize_u32(self, v: u32) -> Result<Self::Ok> { |
| self.serialize_u64(u64::from(v)) |
| } |
| |
| fn serialize_u64(self, v: u64) -> Result<Self::Ok> { |
| self.characters(&v.to_string()) |
| } |
| |
| fn serialize_f32(self, v: f32) -> Result<Self::Ok> { |
| self.serialize_f64(f64::from(v)) |
| } |
| |
| fn serialize_f64(self, v: f64) -> Result<Self::Ok> { |
| self.characters(&v.to_string()) |
| } |
| |
| fn serialize_char(self, v: char) -> Result<Self::Ok> { |
| self.characters(&v.to_string()) |
| } |
| |
| fn serialize_str(self, v: &str) -> Result<Self::Ok> { |
| self.characters(v) |
| } |
| |
| fn serialize_bytes(self, _v: &[u8]) -> Result<Self::Ok> { |
| unimplemented!() |
| } |
| |
| fn serialize_none(self) -> Result<Self::Ok> { |
| unimplemented!() |
| } |
| |
| fn serialize_some<T: ?Sized>(self, _value: &T) -> Result<Self::Ok> |
| where |
| T: Serialize, |
| { |
| unimplemented!() |
| } |
| |
| fn serialize_unit(self) -> Result<Self::Ok> { |
| unimplemented!() |
| } |
| |
| fn serialize_unit_struct(self, _name: &'static str) -> Result<Self::Ok> { |
| unimplemented!() |
| } |
| |
| fn serialize_unit_variant( |
| self, |
| _name: &'static str, |
| _variant_index: u32, |
| _variant: &'static str, |
| ) -> Result<Self::Ok> { |
| unimplemented!() |
| } |
| |
| fn serialize_newtype_struct<T: ?Sized>( |
| self, |
| _name: &'static str, |
| _value: &T, |
| ) -> Result<Self::Ok> |
| where |
| T: Serialize, |
| { |
| unimplemented!() |
| } |
| |
| fn serialize_newtype_variant<T: ?Sized>( |
| self, |
| _name: &'static str, |
| _variant_index: u32, |
| _variant: &'static str, |
| _value: &T, |
| ) -> Result<Self::Ok> |
| where |
| T: Serialize, |
| { |
| unimplemented!() |
| } |
| |
| fn serialize_seq(self, _len: Option<usize>) -> Result<Self::SerializeSeq> { |
| unimplemented!() |
| } |
| |
| fn serialize_tuple(self, _len: usize) -> Result<Self::SerializeTuple> { |
| unimplemented!() |
| } |
| |
| fn serialize_tuple_struct( |
| self, |
| _name: &'static str, |
| _len: usize, |
| ) -> Result<Self::SerializeTupleStruct> { |
| unimplemented!() |
| } |
| |
| fn serialize_tuple_variant( |
| self, |
| _name: &'static str, |
| _variant_index: u32, |
| _variant: &'static str, |
| _len: usize, |
| ) -> Result<Self::SerializeTupleVariant> { |
| unimplemented!() |
| } |
| |
| fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap> { |
| unimplemented!() |
| } |
| |
| fn serialize_struct(self, _name: &'static str, _len: usize) -> Result<Self::SerializeStruct> { |
| unimplemented!() |
| } |
| |
| fn serialize_struct_variant( |
| self, |
| _name: &'static str, |
| _variant_index: u32, |
| _variant: &'static str, |
| _len: usize, |
| ) -> Result<Self::SerializeStructVariant> { |
| unimplemented!() |
| } |
| } |