openglm 0.1.2

OpenGLM rust sdk
Documentation 
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use std::{error::Error as StdError, fmt};

#[derive(Debug)]
pub enum Error{
    MissingParams,
    InvalidApiKey,
    StreamError,
    EmptyDeltaList,
    Conflict,
    Reqwest(reqwest::Error),
    SerdeError(serde_json::Error),
}

impl StdError for Error {
    fn source(&self) -> Option<&(dyn StdError + 'static)> {
        match self {
            Error::Reqwest(e) => Some(e),
            Error::SerdeError(e) => Some(e),
            _ => None,
        }
    }
}

// 为自定义错误实现fmt::Display trait。
impl fmt::Display for Error {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Error::MissingParams => write!(f, "MissingParams"),
            Error::InvalidApiKey => write!(f, "InvalidApiKey"),
            Error::StreamError => write!(f, "StreamError"),
            Error::EmptyDeltaList => write!(f, "EmptyDeltaList"),
            Error::Conflict => write!(f, "Conflict"),
            Error::SerdeError(e) => write!(f, "SerdeError: {}", e),
            Error::Reqwest(e) => write!(f, "Reqwest: {}", e),
        }
    }
}

impl From<reqwest::Error> for Error {
    fn from(e: reqwest::Error) -> Self {
        Error::Reqwest(e)
    }
}

impl From<serde_json::Error> for Error {
    fn from(e: serde_json::Error) -> Self {
        Error::SerdeError(e)
    }
}

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