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use std::{error, fmt};
use serde::{ser, de};
use token::Token;
#[derive(Clone, PartialEq, Debug)]
pub enum Error {
Custom(String),
InvalidValue(String),
EndOfStream,
InvalidType(de::Type),
InvalidLength(usize),
UnknownVariant(String),
UnknownField(String),
MissingField(&'static str),
DuplicateField(&'static str),
InvalidName(&'static str),
UnexpectedToken(Token<'static>),
}
impl ser::Error for Error {
fn custom<T: Into<String>>(msg: T) -> Error {
Error::Custom(msg.into())
}
fn invalid_value(msg: &str) -> Error {
Error::InvalidValue(msg.to_owned())
}
}
impl de::Error for Error {
fn custom<T: Into<String>>(msg: T) -> Error {
Error::Custom(msg.into())
}
fn end_of_stream() -> Error {
Error::EndOfStream
}
fn invalid_type(ty: de::Type) -> Error {
Error::InvalidType(ty)
}
fn invalid_value(msg: &str) -> Error {
Error::InvalidValue(msg.to_owned())
}
fn invalid_length(len: usize) -> Error {
Error::InvalidLength(len)
}
fn unknown_variant(variant: &str) -> Error {
Error::UnknownVariant(variant.to_owned())
}
fn unknown_field(field: &str) -> Error {
Error::UnknownField(field.to_owned())
}
fn missing_field(field: &'static str) -> Error {
Error::MissingField(field)
}
fn duplicate_field(field: &'static str) -> Error {
Error::DuplicateField(field)
}
}
impl fmt::Display for Error {
fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
formatter.write_str(format!("{:?}", self).as_ref())
}
}
impl error::Error for Error {
fn description(&self) -> &str {
"Serde Error"
}
fn cause(&self) -> Option<&error::Error> {
None
}
}