openethereum/ethcore/verification/src/verifier.rs

47 lines
1.6 KiB
Rust

// Copyright 2015-2019 Parity Technologies (UK) Ltd.
// This file is part of Parity Ethereum.
// Parity Ethereum 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.
// Parity Ethereum 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 Parity Ethereum. If not, see <http://www.gnu.org/licenses/>.
//! A generic verifier trait.
use call_contract::CallContract;
use client_traits::BlockInfo;
use common_types::{
header::Header,
errors::EthcoreError as Error,
};
use engine::Engine;
use super::verification;
/// Should be used to verify blocks.
pub trait Verifier<C>: Send + Sync
where C: BlockInfo + CallContract
{
/// Verify a block relative to its parent and uncles.
fn verify_block_family(
&self,
header: &Header,
parent: &Header,
engine: &dyn Engine,
do_full: Option<verification::FullFamilyParams<C>>
) -> Result<(), Error>;
/// Do a final verification check for an enacted header vs its expected counterpart.
fn verify_block_final(&self, expected: &Header, got: &Header) -> Result<(), Error>;
/// Verify a block, inspecting external state.
fn verify_block_external(&self, header: &Header, engine: &dyn Engine) -> Result<(), Error>;
}