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// This file is part of Substrate.
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//! Error helpers for `archive` RPC module.
use jsonrpsee::types::error::ErrorObject;
/// ChainHead RPC errors.
#[derive(Debug, thiserror::Error)]
pub enum Error {
/// Invalid parameter provided to the RPC method.
#[error("Invalid parameter: {0}")]
InvalidParam(String),
/// Runtime call failed.
#[error("Runtime call: {0}")]
RuntimeCall(String),
/// Failed to fetch leaves.
#[error("Failed to fetch leaves of the chain: {0}")]
FetchLeaves(String),
}
// Base code for all `archive` errors.
const BASE_ERROR: i32 = 3000;
/// Invalid parameter error.
const INVALID_PARAM_ERROR: i32 = BASE_ERROR + 1;
/// Runtime call error.
const RUNTIME_CALL_ERROR: i32 = BASE_ERROR + 2;
/// Failed to fetch leaves.
const FETCH_LEAVES_ERROR: i32 = BASE_ERROR + 3;
impl From<Error> for ErrorObject<'static> {
fn from(e: Error) -> Self {
let msg = e.to_string();
match e {
Error::InvalidParam(_) => ErrorObject::owned(INVALID_PARAM_ERROR, msg, None::<()>),
Error::RuntimeCall(_) => ErrorObject::owned(RUNTIME_CALL_ERROR, msg, None::<()>),
Error::FetchLeaves(_) => ErrorObject::owned(FETCH_LEAVES_ERROR, msg, None::<()>),
}
.into()
}
}