mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-31 00:31:02 +00:00
Tomasz Drwięga
5169155f94
* Add instructions. * Squashed 'bridges/' content from commit 345e84a21 git-subtree-dir: bridges git-subtree-split: 345e84a2146b56628e9888c9f5e129cb40e868a9 * Remove bridges workspace file to avoid confusing Cargo. * Add some bridges primitives to Polkadot workspace. * Improve docs.
83 lines
2.8 KiB
Rust
83 lines
2.8 KiB
Rust
// Copyright 2019-2020 Parity Technologies (UK) Ltd.
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// This file is part of Parity Bridges Common.
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// Parity Bridges Common is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity Bridges Common is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity Bridges Common. If not, see <http://www.gnu.org/licenses/>.
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//! Ethereum node RPC errors.
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use crate::types::U256;
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use jsonrpsee::client::RequestError;
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use relay_utils::MaybeConnectionError;
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/// Result type used by Ethereum client.
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pub type Result<T> = std::result::Result<T, Error>;
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/// Errors that can occur only when interacting with
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/// an Ethereum node through RPC.
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#[derive(Debug)]
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pub enum Error {
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/// An error that can occur when making an HTTP request to
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/// an JSON-RPC client.
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Request(RequestError),
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/// Failed to parse response.
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ResponseParseFailed(String),
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/// We have received a header with missing fields.
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IncompleteHeader,
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/// We have received a transaction missing a `raw` field.
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IncompleteTransaction,
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/// An invalid Substrate block number was received from
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/// an Ethereum node.
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InvalidSubstrateBlockNumber,
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/// An invalid index has been received from an Ethereum node.
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InvalidIncompleteIndex,
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/// The client we're connected to is not synced, so we can't rely on its state. Contains
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/// number of unsynced headers.
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ClientNotSynced(U256),
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}
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impl From<RequestError> for Error {
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fn from(error: RequestError) -> Self {
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Error::Request(error)
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}
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}
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impl MaybeConnectionError for Error {
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fn is_connection_error(&self) -> bool {
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matches!(
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*self,
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Error::Request(RequestError::TransportError(_)) | Error::ClientNotSynced(_),
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)
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}
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}
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impl ToString for Error {
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fn to_string(&self) -> String {
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match self {
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Self::Request(e) => e.to_string(),
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Self::ResponseParseFailed(e) => e.to_string(),
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Self::IncompleteHeader => {
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"Incomplete Ethereum Header Received (missing some of required fields - hash, number, logs_bloom)"
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.to_string()
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}
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Self::IncompleteTransaction => "Incomplete Ethereum Transaction (missing required field - raw)".to_string(),
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Self::InvalidSubstrateBlockNumber => "Received an invalid Substrate block from Ethereum Node".to_string(),
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Self::InvalidIncompleteIndex => "Received an invalid incomplete index from Ethereum Node".to_string(),
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Self::ClientNotSynced(missing_headers) => {
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format!("Ethereum client is not synced: syncing {} headers", missing_headers)
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}
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}
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}
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}
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