pezkuwichain
b6d35f6faf
Updated 4763 files with dual copyright: - Parity Technologies (UK) Ltd. - Dijital Kurdistan Tech Institute
128 lines
4.5 KiB
Rust
128 lines
4.5 KiB
Rust
// This file is part of Bizinikiwi.
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// Copyright (C) Parity Technologies (UK) Ltd. and Dijital Kurdistan Tech Institute
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// SPDX-License-Identifier: MIT-0
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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// of the Software, and to permit persons to whom the Software is furnished to do
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// so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//! # Split Example Pezpallet
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//!
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//! **This pezpallet serves as an example and is not meant to be used in production.**
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//!
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//! A FRAME pezpallet demonstrating the ability to split sections across multiple files.
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//!
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//! Note that this is purely experimental at this point.
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#![cfg_attr(not(feature = "std"), no_std)]
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// Re-export pezpallet items so that they can be accessed from the crate namespace.
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pub use pezpallet::*;
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#[cfg(test)]
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mod mock;
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#[cfg(test)]
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mod tests;
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#[cfg(feature = "runtime-benchmarks")]
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mod benchmarking;
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mod events;
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pub mod weights;
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pub use weights::*;
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use pezframe_support::pezpallet_macros::*;
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/// Imports a [`pezpallet_section`] defined at [`events::events`].
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/// This brings the events defined in that section into the pezpallet's namespace.
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#[import_section(events::events)]
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#[pezframe_support::pezpallet]
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pub mod pezpallet {
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use super::*;
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use pezframe_support::pezpallet_prelude::*;
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use pezframe_system::pezpallet_prelude::*;
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#[pezpallet::pezpallet]
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pub struct Pezpallet<T>(_);
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/// Configure the pezpallet by specifying the parameters and types on which it depends.
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#[pezpallet::config]
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pub trait Config: pezframe_system::Config {
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/// Type representing the weight of this pezpallet
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type WeightInfo: WeightInfo;
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}
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// The pezpallet's runtime storage items.
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#[pezpallet::storage]
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pub type Something<T> = StorageValue<_, u32>;
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// Errors inform users that something went wrong.
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#[pezpallet::error]
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pub enum Error<T> {
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/// Error names should be descriptive.
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NoneValue,
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/// Errors should have helpful documentation associated with them.
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StorageOverflow,
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}
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// Dispatchable functions allows users to interact with the pezpallet and invoke state changes.
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// These functions materialize as "extrinsics", which are often compared to transactions.
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// Dispatchable functions must be annotated with a weight and must return a DispatchResult.
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#[pezpallet::call]
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impl<T: Config> Pezpallet<T> {
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/// An example dispatchable that takes a singles value as a parameter, writes the value to
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/// storage and emits an event. This function must be dispatched by a signed extrinsic.
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#[pezpallet::call_index(0)]
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#[pezpallet::weight(T::WeightInfo::do_something())]
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pub fn do_something(origin: OriginFor<T>, something: u32) -> DispatchResult {
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// Check that the extrinsic was signed and get the signer.
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// This function will return an error if the extrinsic is not signed.
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let who = ensure_signed(origin)?;
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// Update storage.
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<Something<T>>::put(something);
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// Emit an event.
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Self::deposit_event(Event::SomethingStored { something, who });
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// Return a successful DispatchResultWithPostInfo
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Ok(())
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}
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/// An example dispatchable that may throw a custom error.
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#[pezpallet::call_index(1)]
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#[pezpallet::weight(T::WeightInfo::cause_error())]
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pub fn cause_error(origin: OriginFor<T>) -> DispatchResult {
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let _who = ensure_signed(origin)?;
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// Read a value from storage.
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match Something::<T>::get() {
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// Return an error if the value has not been set.
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None => return Err(Error::<T>::NoneValue.into()),
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Some(old) => {
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// Increment the value read from storage; will error in the event of overflow.
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let new = old.checked_add(1).ok_or(Error::<T>::StorageOverflow)?;
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// Update the value in storage with the incremented result.
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<Something<T>>::put(new);
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Ok(())
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},
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}
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}
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}
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}
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