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use serde::ser;
use std::fmt;
#[derive(Debug)]
pub enum Error {
Extern(Box<dyn std::error::Error + Send + Sync>),
Unsupported(String),
Custom(String),
}
pub type Result<T> = std::result::Result<T, Error>;
impl Error {
pub fn unsupported<T: fmt::Display>(msg: T) -> Self {
Error::Unsupported(format!("{}", msg))
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Error::Extern(ref err) => fmt::Display::fmt(err, f),
Error::Unsupported(ref msg) | Error::Custom(ref msg) => fmt::Display::fmt(msg, f),
}
}
}
impl std::error::Error for Error {}
impl ser::Error for Error {
fn custom<T: fmt::Display>(msg: T) -> Error {
Error::Custom(msg.to_string())
}
}
impl From<std::io::Error> for Error {
fn from(err: std::io::Error) -> Self {
Error::Extern(Box::new(err))
}
}
impl From<std::string::FromUtf8Error> for Error {
fn from(err: std::string::FromUtf8Error) -> Self {
Error::Extern(Box::new(err))
}
}