mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-07-17 08:55:48 +00:00
Svyatoslav Nikolsky
25c17feb23
* reject storage proofs with unused nodes: begin * fix ignores_parachain_head_if_it_is_missing_from_storage_proof * message_proof_is_rejected_if_it_has_duplicate_trie_nodes && message_proof_is_rejected_if_it_has_unused_trie_nodes * proof_with_duplicate_items_is_rejected and proof_with_unused_items_is_rejected * clippy * fix benchmarks compilation * impl From<Error> for &'static str * fix review comments * added comment
99 lines
2.9 KiB
Rust
99 lines
2.9 KiB
Rust
// Copyright 2019-2021 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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//! Primitives of polkadot-like chains, that are related to parachains functionality.
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//!
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//! Even though this (bridges) repository references polkadot repository, we can't
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//! reference polkadot crates from pallets. That's because bridges repository is
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//! included in the polkadot repository and included pallets are used by polkadot
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//! chains. Having pallets that are referencing polkadot, would mean that there may
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//! be two versions of polkadot crates included in the runtime. Which is bad.
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use bp_runtime::{RawStorageProof, Size};
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use codec::{CompactAs, Decode, Encode, MaxEncodedLen};
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use frame_support::RuntimeDebug;
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use scale_info::TypeInfo;
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use sp_core::Hasher;
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use sp_std::vec::Vec;
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#[cfg(feature = "std")]
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use serde::{Deserialize, Serialize};
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#[cfg(feature = "std")]
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use parity_util_mem::MallocSizeOf;
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/// Parachain id.
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///
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/// This is an equivalent of the `polkadot_parachain::Id`, which is a compact-encoded `u32`.
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#[derive(
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Clone,
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CompactAs,
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Copy,
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Decode,
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Default,
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Encode,
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Eq,
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Hash,
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MaxEncodedLen,
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Ord,
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PartialEq,
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PartialOrd,
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RuntimeDebug,
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TypeInfo,
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)]
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pub struct ParaId(pub u32);
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impl From<u32> for ParaId {
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fn from(id: u32) -> Self {
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ParaId(id)
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}
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}
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/// Parachain head.
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///
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/// This is an equivalent of the `polkadot_parachain::HeadData`.
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///
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/// The parachain head means (at least in Cumulus) a SCALE-encoded parachain header.
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#[derive(
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PartialEq, Eq, Clone, PartialOrd, Ord, Encode, Decode, RuntimeDebug, TypeInfo, Default,
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)]
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#[cfg_attr(feature = "std", derive(Serialize, Deserialize, Hash, MallocSizeOf))]
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pub struct ParaHead(pub Vec<u8>);
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impl ParaHead {
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/// Returns the hash of this head data.
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pub fn hash(&self) -> crate::Hash {
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sp_runtime::traits::BlakeTwo256::hash(&self.0)
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}
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}
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/// Parachain head hash.
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pub type ParaHash = crate::Hash;
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/// Parachain head hasher.
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pub type ParaHasher = crate::Hasher;
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/// Raw storage proof of parachain heads, stored in polkadot-like chain runtime.
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#[derive(Clone, Decode, Encode, Eq, PartialEq, RuntimeDebug, TypeInfo)]
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pub struct ParaHeadsProof(pub RawStorageProof);
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impl Size for ParaHeadsProof {
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fn size(&self) -> u32 {
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u32::try_from(self.0.iter().fold(0usize, |sum, node| sum.saturating_add(node.len())))
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.unwrap_or(u32::MAX)
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}
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}
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