mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-28 20:17:57 +00:00
Bastian Köcher
e3e651f72c
* Happy new year Updates the copyright years and fixes wrong license headers. * Fix the template * Split HEADER into HEADER-APACHE & HEADER-GPL
59 lines
1.9 KiB
Rust
59 lines
1.9 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) 2017-2021 Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use crate::{Config, Module};
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use codec::{Encode, Decode};
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use sp_runtime::{
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traits::SignedExtension,
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transaction_validity::TransactionValidityError,
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};
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/// Ensure the runtime version registered in the transaction is the same as at present.
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#[derive(Encode, Decode, Clone, Eq, PartialEq)]
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pub struct CheckSpecVersion<T: Config + Send + Sync>(sp_std::marker::PhantomData<T>);
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impl<T: Config + Send + Sync> sp_std::fmt::Debug for CheckSpecVersion<T> {
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#[cfg(feature = "std")]
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fn fmt(&self, f: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {
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write!(f, "CheckSpecVersion")
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}
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#[cfg(not(feature = "std"))]
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fn fmt(&self, _: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {
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Ok(())
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}
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}
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impl<T: Config + Send + Sync> CheckSpecVersion<T> {
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/// Create new `SignedExtension` to check runtime version.
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pub fn new() -> Self {
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Self(sp_std::marker::PhantomData)
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}
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}
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impl<T: Config + Send + Sync> SignedExtension for CheckSpecVersion<T> {
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type AccountId = T::AccountId;
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type Call = <T as Config>::Call;
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type AdditionalSigned = u32;
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type Pre = ();
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const IDENTIFIER: &'static str = "CheckSpecVersion";
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fn additional_signed(&self) -> Result<Self::AdditionalSigned, TransactionValidityError> {
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Ok(<Module<T>>::runtime_version().spec_version)
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}
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}
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