mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-01 12:27:56 +00:00
Benjamin Kampmann
49 lines
1.7 KiB
Rust
49 lines
1.7 KiB
Rust
// This file is part of Substrate.
|
|
|
|
// Copyright (C) 2019-2020 Parity Technologies (UK) Ltd.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
/// State Machine Errors
|
|
|
|
use std::fmt;
|
|
|
|
/// State Machine Error bound.
|
|
///
|
|
/// This should reflect Wasm error type bound for future compatibility.
|
|
pub trait Error: 'static + fmt::Debug + fmt::Display + Send {}
|
|
|
|
impl<T: 'static + fmt::Debug + fmt::Display + Send> Error for T {}
|
|
|
|
/// Externalities Error.
|
|
///
|
|
/// Externalities are not really allowed to have errors, since it's assumed that dependent code
|
|
/// would not be executed unless externalities were available. This is included for completeness,
|
|
/// and as a transition away from the pre-existing framework.
|
|
#[derive(Debug, Eq, PartialEq)]
|
|
pub enum ExecutionError {
|
|
/// Backend error.
|
|
Backend(String),
|
|
/// The entry `:code` doesn't exist in storage so there's no way we can execute anything.
|
|
CodeEntryDoesNotExist,
|
|
/// Backend is incompatible with execution proof generation process.
|
|
UnableToGenerateProof,
|
|
/// Invalid execution proof.
|
|
InvalidProof,
|
|
}
|
|
|
|
impl fmt::Display for ExecutionError {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "Externalities Error") }
|
|
}
|