xidl-jsonrpc 0.30.0

A IDL codegen.
Documentation 
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use serde_json::Value;
use thiserror::Error;

#[derive(Debug, Clone, Copy)]
pub enum ErrorCode {
    ParseError,
    InvalidRequest,
    MethodNotFound,
    InvalidParams,
    InternalError,
    ServerError,
}

impl ErrorCode {
    pub fn code(self) -> i64 {
        match self {
            Self::ParseError => -32700,
            Self::InvalidRequest => -32600,
            Self::MethodNotFound => -32601,
            Self::InvalidParams => -32602,
            Self::InternalError => -32603,
            Self::ServerError => -32000,
        }
    }
}

impl std::fmt::Display for ErrorCode {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "{}", self.code())
    }
}

#[derive(Debug, Error)]
pub enum Error {
    #[error("io error: {0}")]
    Io(#[from] std::io::Error),
    #[error("json error: {0}")]
    Json(#[from] serde_json::Error),
    #[error("rpc error {code}: {message}")]
    Rpc {
        code: ErrorCode,
        message: String,
        data: Option<Value>,
    },
    #[error("protocol error: {0}")]
    Protocol(&'static str),
}

impl Error {
    pub fn method_not_found(method: &str) -> Self {
        Self::Rpc {
            code: ErrorCode::MethodNotFound,
            message: format!("method not found: {method}"),
            data: None,
        }
    }

    pub fn invalid_params(message: impl Into<String>) -> Self {
        Self::Rpc {
            code: ErrorCode::InvalidParams,
            message: message.into(),
            data: None,
        }
    }

    pub fn is_method_not_found(&self) -> bool {
        matches!(
            self,
            Error::Rpc {
                code: ErrorCode::MethodNotFound,
                ..
            }
        )
    }
}