mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 22:47:56 +00:00
Sam Johnson
ac3f14d23b
`polkadot-sdk` version of original tasks PR located here: https://github.com/paritytech/substrate/pull/14329 Fixes #206 ## Status - [x] Generic `Task` trait - [x] `RuntimeTask` aggregated enum, compatible with `construct_runtime!` - [x] Casting between `Task` and `RuntimeTask` without needing `dyn` or `Box` - [x] Tasks Example pallet - [x] Runtime tests for Tasks example pallet - [x] Parsing for task-related macros - [x] Retrofit parsing to make macros optional - [x] Expansion for task-related macros - [x] Adds support for args in tasks - [x] Retrofit tasks example pallet to use macros instead of manual syntax - [x] Weights - [x] Cleanup - [x] UI tests - [x] Docs ## Target Syntax Adapted from https://github.com/paritytech/polkadot-sdk/issues/206#issue-1865172283 ```rust // NOTE: this enum is optional and is auto-generated by the other macros if not present #[pallet::task] pub enum Task<T: Config> { AddNumberIntoTotal { i: u32, } } /// Some running total. #[pallet::storage] pub(super) type Total<T: Config<I>, I: 'static = ()> = StorageValue<_, (u32, u32), ValueQuery>; /// Numbers to be added into the total. #[pallet::storage] pub(super) type Numbers<T: Config<I>, I: 'static = ()> = StorageMap<_, Twox64Concat, u32, u32, OptionQuery>; #[pallet::tasks_experimental] impl<T: Config<I>, I: 'static> Pallet<T, I> { /// Add a pair of numbers into the totals and remove them. #[pallet::task_list(Numbers::<T, I>::iter_keys())] #[pallet::task_condition(|i| Numbers::<T, I>::contains_key(i))] #[pallet::task_index(0)] pub fn add_number_into_total(i: u32) -> DispatchResult { let v = Numbers::<T, I>::take(i).ok_or(Error::<T, I>::NotFound)?; Total::<T, I>::mutate(|(total_keys, total_values)| { *total_keys += i; *total_values += v; }); Ok(()) } } ``` --------- Co-authored-by: Nikhil Gupta <17176722+gupnik@users.noreply.github.com> Co-authored-by: kianenigma <kian@parity.io> Co-authored-by: Nikhil Gupta <> Co-authored-by: Gavin Wood <gavin@parity.io> Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> Co-authored-by: gupnik <nikhilgupta.iitk@gmail.com>
79 lines
2.2 KiB
Rust
79 lines
2.2 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) 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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//! This pallet demonstrates the use of the `pallet::task` api for service work.
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#![cfg_attr(not(feature = "std"), no_std)]
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use frame_support::dispatch::DispatchResult;
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// Re-export pallet items so that they can be accessed from the crate namespace.
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pub use pallet::*;
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pub mod mock;
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pub mod tests;
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#[cfg(feature = "runtime-benchmarks")]
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mod benchmarking;
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pub mod weights;
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pub use weights::*;
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#[frame_support::pallet(dev_mode)]
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pub mod pallet {
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use super::*;
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use frame_support::pallet_prelude::*;
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#[pallet::error]
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pub enum Error<T> {
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/// The referenced task was not found.
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NotFound,
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}
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#[pallet::tasks_experimental]
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impl<T: Config> Pallet<T> {
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/// Add a pair of numbers into the totals and remove them.
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#[pallet::task_list(Numbers::<T>::iter_keys())]
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#[pallet::task_condition(|i| Numbers::<T>::contains_key(i))]
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#[pallet::task_weight(T::WeightInfo::add_number_into_total())]
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#[pallet::task_index(0)]
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pub fn add_number_into_total(i: u32) -> DispatchResult {
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let v = Numbers::<T>::take(i).ok_or(Error::<T>::NotFound)?;
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Total::<T>::mutate(|(total_keys, total_values)| {
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*total_keys += i;
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*total_values += v;
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});
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Ok(())
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}
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}
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#[pallet::config]
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pub trait Config: frame_system::Config {
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type RuntimeTask: frame_support::traits::Task;
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type WeightInfo: WeightInfo;
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}
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#[pallet::pallet]
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pub struct Pallet<T>(_);
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/// Some running total.
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#[pallet::storage]
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pub type Total<T: Config> = StorageValue<_, (u32, u32), ValueQuery>;
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/// Numbers to be added into the total.
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#[pallet::storage]
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pub type Numbers<T: Config> = StorageMap<_, Twox64Concat, u32, u32, OptionQuery>;
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}
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