diff options
Diffstat (limited to 'src/ser/plain.rs')
-rw-r--r-- | src/ser/plain.rs | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/ser/plain.rs b/src/ser/plain.rs new file mode 100644 index 0000000..49e2964 --- /dev/null +++ b/src/ser/plain.rs @@ -0,0 +1,196 @@ +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!() + } +} |