mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
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Hernando Castano
29244ba76d
* Add header-chain primitive crate * Make MinimalHeaderChain functionaly the same as PeerBlockchain * Use a better doc comment for MinimalHeaderChain * Fix benchmark compilation * Rust Fmt * Remove Substrate based dependencies * Rename MinimalHeaderChain to BaseHeaderChain
45 lines
1.8 KiB
Rust
45 lines
1.8 KiB
Rust
// Copyright 2019-2020 Parity Technologies (UK) Ltd.
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// This file is part of Parity Bridges Common.
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// Parity Bridges Common 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 Bridges Common 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 Bridges Common. If not, see <http://www.gnu.org/licenses/>.
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//! Defines traits which represent a common interface for Substrate pallets which want to
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//! incorporate bridge functionality.
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#![cfg_attr(not(feature = "std"), no_std)]
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use core::clone::Clone;
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use core::cmp::Eq;
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use core::fmt::Debug;
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use parity_scale_codec::{Codec, EncodeLike};
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/// A type that can be used as a parameter in a dispatchable function.
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///
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/// When using `decl_module` all arguments for call functions must implement this trait.
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pub trait Parameter: Codec + EncodeLike + Clone + Eq + Debug {}
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impl<T> Parameter for T where T: Codec + EncodeLike + Clone + Eq + Debug {}
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/// A base trait for pallets which want to keep track of a full set of headers from a bridged chain.
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pub trait BaseHeaderChain {
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/// Transaction type.
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type Transaction: Parameter;
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/// Transaction inclusion proof type.
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type TransactionInclusionProof: Parameter;
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/// Verify that transaction is a part of given block.
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///
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/// Returns Some(transaction) if proof is valid and None otherwise.
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fn verify_transaction_inclusion_proof(proof: &Self::TransactionInclusionProof) -> Option<Self::Transaction>;
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}
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