// Copyright 2015-2018 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity 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 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. If not, see .
use crate::VerifiedTransaction;
/// Transaction verification.
///
/// Verifier is responsible to decide if the transaction should even be considered for pool inclusion.
pub trait Verifier {
/// Verification error.
type Error;
/// Verified transaction.
type VerifiedTransaction: VerifiedTransaction;
/// Verifies a `UnverifiedTransaction` and produces `VerifiedTransaction` instance.
fn verify_transaction(&self, tx: U) -> Result;
}