minio-rsc 0.2.6

rust for minio, api is compliant with the Amazon S3 protocol.
Documentation 
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use serde::de::Error as DeError;
use serde::ser::Error as SerError;
use std::convert::Infallible;
use std::fmt::Display;

#[derive(thiserror::Error, Debug)]
pub enum Error {
    #[error("Expected token {token}, found {found}")]
    UnexpectedToken { token: String, found: String },
    #[error("Custom: {field}")]
    Custom { field: String },
    #[error("UnsupportedOperation: {operation}")]
    UnsupportedOperation { operation: String },
    #[error("IO error: {0}")]
    Io(#[from] ::std::io::Error),
    #[error("FromUtf8Error: {0}")]
    FromUtf8Error(#[from] ::std::string::FromUtf8Error),
    #[error("ParseIntError: {0}")]
    ParseIntError(#[from] ::std::num::ParseIntError),
    #[error("ParseFloatError: {0}")]
    ParseFloatError(#[from] ::std::num::ParseFloatError),
    #[error("ParseBoolError: {0}")]
    ParseBoolError(#[from] ::std::str::ParseBoolError),
    // Syntax {
    //     source: ::xml::reader::Error,
    // },

    // Writer {
    //     source: ::xml::writer::Error,
    // },
}

pub type Result<T> = std::result::Result<T, Error>;

impl DeError for Error {
    fn custom<T: Display>(msg: T) -> Self {
        Error::Custom {
            field: msg.to_string(),
        }
    }
}

impl SerError for Error {
    fn custom<T: Display>(msg: T) -> Self {
        Error::Custom {
            field: msg.to_string(),
        }
    }
}

impl From<Infallible> for Error {
    fn from(err: Infallible) -> Self {
        return Error::Custom {
            field: err.to_string(),
        };
    }
}

impl From<serde_xml_rs::Error> for Error {
    fn from(err: serde_xml_rs::Error) -> Self {
        match err {
            serde_xml_rs::Error::UnexpectedToken { token, found } => {
                Error::UnexpectedToken { token, found }
            }
            serde_xml_rs::Error::Custom { field } => Error::Custom { field },
            serde_xml_rs::Error::UnsupportedOperation { operation } => {
                Error::UnsupportedOperation { operation }
            }
            serde_xml_rs::Error::Io { source } => Error::Io(source),
            serde_xml_rs::Error::FromUtf8Error { source } => Error::FromUtf8Error(source),
            serde_xml_rs::Error::ParseIntError { source } => Error::ParseIntError(source),
            serde_xml_rs::Error::ParseFloatError { source } => Error::ParseFloatError(source),
            serde_xml_rs::Error::ParseBoolError { source } => Error::ParseBoolError(source),
            serde_xml_rs::Error::Syntax { source } => Error::Custom {
                field: format!("Syntax error: {source}"),
            },
            serde_xml_rs::Error::Writer { source } => Error::Custom {
                field: format!("Writer error: {source}"),
            },
        }
    }
}