33 lines
1.4 KiB
Rust
33 lines
1.4 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity 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 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. If not, see <http://www.gnu.org/licenses/>.
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//! A generic verifier trait.
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use blockchain::BlockProvider;
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use engines::Engine;
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use error::Error;
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use header::Header;
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/// Should be used to verify blocks.
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pub trait Verifier: Send + Sync {
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/// Verify a block relative to its parent and uncles.
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fn verify_block_family(&self, header: &Header, bytes: &[u8], engine: &Engine, bc: &BlockProvider) -> Result<(), Error>;
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/// Do a final verification check for an enacted header vs its expected counterpart.
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fn verify_block_final(&self, expected: &Header, got: &Header) -> Result<(), Error>;
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/// Verify a block, inspecing external state.
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fn verify_block_external(&self, header: &Header, bytes: &[u8], engine: &Engine) -> Result<(), Error>;
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}
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