nml 0.2.0

A parser and Serde implementation for the Fortran Namelist format
Documentation 
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use super::NamelistError;
use crate::namelist::LiteralConstant;

pub struct LiteralSerializer;

impl serde::ser::Serializer for LiteralSerializer {
    type Ok = LiteralConstant;
    type Error = NamelistError;

    type SerializeTuple = serde::ser::Impossible<LiteralConstant, NamelistError>;

    type SerializeTupleStruct = serde::ser::Impossible<LiteralConstant, NamelistError>;

    type SerializeTupleVariant = serde::ser::Impossible<LiteralConstant, NamelistError>;

    type SerializeMap = serde::ser::Impossible<LiteralConstant, NamelistError>;

    type SerializeStruct = serde::ser::Impossible<LiteralConstant, NamelistError>;

    type SerializeStructVariant = serde::ser::Impossible<LiteralConstant, NamelistError>;

    type SerializeSeq = serde::ser::Impossible<LiteralConstant, NamelistError>;

    fn serialize_bool(self, v: bool) -> Result<Self::Ok, Self::Error> {
        Ok(LiteralConstant::Bool(v))
    }

    fn serialize_i8(self, v: i8) -> Result<Self::Ok, Self::Error> {
        self.serialize_i64(v.into())
    }

    fn serialize_i16(self, v: i16) -> Result<Self::Ok, Self::Error> {
        self.serialize_i64(v.into())
    }

    fn serialize_i32(self, v: i32) -> Result<Self::Ok, Self::Error> {
        self.serialize_i64(v.into())
    }

    fn serialize_i64(self, v: i64) -> Result<Self::Ok, Self::Error> {
        Ok(LiteralConstant::Int(v))
    }

    fn serialize_u8(self, v: u8) -> Result<Self::Ok, Self::Error> {
        self.serialize_i64(v.into())
    }

    fn serialize_u16(self, v: u16) -> Result<Self::Ok, Self::Error> {
        self.serialize_i64(v.into())
    }

    fn serialize_u32(self, v: u32) -> Result<Self::Ok, Self::Error> {
        self.serialize_i64(v.into())
    }

    fn serialize_u64(self, v: u64) -> Result<Self::Ok, Self::Error> {
        self.serialize_u32(
            v.try_into()
                .map_err(|_| NamelistError::UnsupportedSerialization)?,
        )
    }

    fn serialize_f32(self, v: f32) -> Result<Self::Ok, Self::Error> {
        self.serialize_f64(v.into())
    }

    fn serialize_f64(self, v: f64) -> Result<Self::Ok, Self::Error> {
        Ok(LiteralConstant::Float(v))
    }

    fn serialize_char(self, v: char) -> Result<Self::Ok, Self::Error> {
        Ok(LiteralConstant::String(v.into()))
    }

    fn serialize_str(self, v: &str) -> Result<Self::Ok, Self::Error> {
        Ok(LiteralConstant::String(v.to_string()))
    }

    fn serialize_bytes(self, _v: &[u8]) -> Result<Self::Ok, Self::Error> {
        Err(NamelistError::UnsupportedSerialization)
    }

    fn serialize_none(self) -> Result<Self::Ok, Self::Error> {
        Ok(LiteralConstant::Null)
    }

    fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error>
    where
        T: serde::Serialize,
    {
        value.serialize(self)
    }

    fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
        self.serialize_none()
    }

    fn serialize_unit_struct(self, _name: &'static str) -> Result<Self::Ok, Self::Error> {
        self.serialize_unit()
    }

    fn serialize_unit_variant(
        self,
        _name: &'static str,
        _variant_index: u32,
        _variant: &'static str,
    ) -> Result<Self::Ok, Self::Error> {
        Err(NamelistError::UnsupportedSerialization)
    }

    fn serialize_newtype_struct<T: ?Sized>(
        self,
        _name: &'static str,
        _value: &T,
    ) -> Result<Self::Ok, Self::Error>
    where
        T: serde::Serialize,
    {
        Err(NamelistError::UnsupportedSerialization)
    }

    fn serialize_newtype_variant<T: ?Sized>(
        self,
        _name: &'static str,
        _variant_index: u32,
        _variant: &'static str,
        _value: &T,
    ) -> Result<Self::Ok, Self::Error>
    where
        T: serde::Serialize,
    {
        Err(NamelistError::UnsupportedSerialization)
    }

    fn serialize_seq(self, _len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
        Err(NamelistError::UnsupportedSerialization)
    }

    fn serialize_tuple(self, _len: usize) -> Result<Self::SerializeTuple, Self::Error> {
        Err(NamelistError::UnsupportedSerialization)
    }

    fn serialize_tuple_struct(
        self,
        _name: &'static str,
        _len: usize,
    ) -> Result<Self::SerializeTupleStruct, Self::Error> {
        Err(NamelistError::UnsupportedSerialization)
    }

    fn serialize_tuple_variant(
        self,
        _name: &'static str,
        _variant_index: u32,
        _variant: &'static str,
        _len: usize,
    ) -> Result<Self::SerializeTupleVariant, Self::Error> {
        Err(NamelistError::UnsupportedSerialization)
    }

    fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
        Err(NamelistError::UnsupportedSerialization)
    }

    fn serialize_struct(
        self,
        _name: &'static str,
        _len: usize,
    ) -> Result<Self::SerializeStruct, Self::Error> {
        Err(NamelistError::UnsupportedSerialization)
    }

    fn serialize_struct_variant(
        self,
        _name: &'static str,
        _variant_index: u32,
        _variant: &'static str,
        _len: usize,
    ) -> Result<Self::SerializeStructVariant, Self::Error> {
        Err(NamelistError::UnsupportedSerialization)
    }
}