openapi-nexus 0.1.3

OpenAPI 3.x multi-language code generator
Documentation 
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use std::fmt;

/// Error types for the generated SDK.
#[derive(Debug)]
pub enum Error {
    /// HTTP transport error.
    Http(ureq::Error),
    /// I/O error while reading response body.
    Io(std::io::Error),
    /// JSON deserialization error.
    Deserialize(serde_json::Error),
}

impl fmt::Display for Error {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Error::Http(e) => write!(f, "HTTP error: {e}"),
            Error::Io(e) => write!(f, "IO error: {e}"),
            Error::Deserialize(e) => write!(f, "Deserialization error: {e}"),
        }
    }
}

impl std::error::Error for Error {
    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
        match self {
            Error::Http(e) => Some(e),
            Error::Io(e) => Some(e),
            Error::Deserialize(e) => Some(e),
        }
    }
}

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

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