mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
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s0me0ne-unkn0wn
94 lines
2.9 KiB
Rust
94 lines
2.9 KiB
Rust
// Copyright 2021 Parity Technologies (UK) Ltd.
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// This file is part of Polkadot.
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// Polkadot 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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// Polkadot 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 Polkadot. If not, see <http://www.gnu.org/licenses/>.
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use crate::artifacts::ArtifactId;
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use parity_scale_codec::{Decode, Encode};
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use polkadot_parachain::primitives::ValidationCodeHash;
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use polkadot_primitives::vstaging::ExecutorParams;
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use sp_core::blake2_256;
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use std::{
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cmp::{Eq, PartialEq},
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fmt,
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sync::Arc,
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};
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/// A struct that carries code of a parachain validation function, its hash, and a corresponding
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/// set of executor parameters.
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///
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/// Should be cheap to clone.
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#[derive(Clone, Encode, Decode)]
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pub struct PvfWithExecutorParams {
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pub(crate) code: Arc<Vec<u8>>,
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pub(crate) code_hash: ValidationCodeHash,
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pub(crate) executor_params: Arc<ExecutorParams>,
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}
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impl PvfWithExecutorParams {
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/// Returns an instance of the PVF out of the given PVF code and executor params.
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pub fn from_code(code: Vec<u8>, executor_params: ExecutorParams) -> Self {
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let code = Arc::new(code);
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let code_hash = blake2_256(&code).into();
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let executor_params = Arc::new(executor_params);
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Self { code, code_hash, executor_params }
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}
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/// Returns artifact ID that corresponds to the PVF with given executor params
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pub(crate) fn as_artifact_id(&self) -> ArtifactId {
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ArtifactId::new(self.code_hash, self.executor_params.hash())
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}
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/// Returns validation code hash for the PVF
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pub(crate) fn code_hash(&self) -> ValidationCodeHash {
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self.code_hash
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}
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/// Returns PVF code
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pub(crate) fn code(&self) -> Arc<Vec<u8>> {
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self.code.clone()
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}
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/// Returns executor params
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pub(crate) fn executor_params(&self) -> Arc<ExecutorParams> {
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self.executor_params.clone()
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}
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/// Creates a structure for tests
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#[cfg(test)]
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pub(crate) fn from_discriminator(num: u32) -> Self {
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let descriminator_buf = num.to_le_bytes().to_vec();
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Self::from_code(descriminator_buf, ExecutorParams::default())
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}
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}
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impl fmt::Debug for PvfWithExecutorParams {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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write!(
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f,
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"Pvf {{ code, code_hash: {:?}, executor_params: {:?} }}",
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self.code_hash, self.executor_params
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)
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}
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}
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impl PartialEq for PvfWithExecutorParams {
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fn eq(&self, other: &Self) -> bool {
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self.code_hash == other.code_hash &&
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self.executor_params.hash() == other.executor_params.hash()
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}
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}
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impl Eq for PvfWithExecutorParams {}
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