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removed evaluation.rs (#11766)

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* removed evaluation.rs

* no need for parent_hash

* fix
This commit is contained in:
Sergej Sakac
2022-07-17 00:38:38 +03:00
committed by GitHub
parent f514bc3892
commit a0a806ac78
3 changed files with 1 additions and 86 deletions
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substrate/primitives/consensus/common/src/evaluation.rs
-74
View File
@@ -1,74 +0,0 @@
// This file is part of Substrate.
// Copyright (C) 2018-2022 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.
//! Block evaluation and evaluation errors.
use codec::Encode;
use sp_runtime::traits::{Block as BlockT, CheckedConversion, Header as HeaderT, One};
// This is just a best effort to encode the number. None indicated that it's too big to encode
// in a u128.
type BlockNumber = Option<u128>;
/// Result type alias.
pub type Result<T> = std::result::Result<T, Error>;
/// Error type.
#[derive(Debug, thiserror::Error)]
pub enum Error {
#[error("Failed to verify block encoding/decoding")]
BadBlockCodec,
/// Proposal provided not a block.
#[error("Proposal provided not a block: decoding error: {0}")]
BadProposalFormat(#[from] codec::Error),
/// Proposal had wrong parent hash.
#[error("Proposal had wrong parent hash. Expected {expected:?}, got {got:?}")]
WrongParentHash { expected: String, got: String },
/// Proposal had wrong number.
#[error("Proposal had wrong number. Expected {expected:?}, got {got:?}")]
WrongNumber { expected: BlockNumber, got: BlockNumber },
}
/// Attempt to evaluate a substrate block as a node block, returning error
/// upon any initial validity checks failing.
pub fn evaluate_initial<Block: BlockT>(
proposal: &Block,
parent_hash: &<Block as BlockT>::Hash,
parent_number: <<Block as BlockT>::Header as HeaderT>::Number,
) -> Result<()> {
let encoded = Encode::encode(proposal);
let block = Block::decode(&mut &encoded[..]).map_err(Error::BadProposalFormat)?;
if &block != proposal {
return Err(Error::BadBlockCodec)
}
if *parent_hash != *block.header().parent_hash() {
return Err(Error::WrongParentHash {
expected: format!("{:?}", *parent_hash),
got: format!("{:?}", block.header().parent_hash()),
})
}
if parent_number + One::one() != *block.header().number() {
return Err(Error::WrongNumber {
expected: parent_number.checked_into::<u128>().map(|x| x + 1),
got: (*block.header().number()).checked_into::<u128>(),
})
}
Ok(())
}
substrate/primitives/consensus/common/src/lib.rs
-1
View File
@@ -33,7 +33,6 @@ use sp_state_machine::StorageProof;
pub mod block_validation;
pub mod error;
pub mod evaluation;
mod select_chain;
pub use self::error::Error;