mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-27 08:07:58 +00:00
Bastian Köcher
02c879ec49
The transaction payment runtime api used its own extrinsic generic parameter. This is wrong, because this resulted in using always the native extrinsic. If there was a runtime upgrade that changed the extrinsic in some way, it would result in the api breaking. The correct way is to use the `Extrinsic` from the `Block` parameter. This is on the node side the opaque extrinsic and on the runtime side the real extrinsic.
104 lines
3.6 KiB
Rust
104 lines
3.6 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) 2019-2020 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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//! Runtime API definition for transaction payment module.
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#![cfg_attr(not(feature = "std"), no_std)]
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use sp_std::prelude::*;
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use frame_support::weights::{Weight, DispatchClass};
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use codec::{Encode, Codec, Decode};
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#[cfg(feature = "std")]
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use serde::{Serialize, Deserialize, Serializer, Deserializer};
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use sp_runtime::traits::{MaybeDisplay, MaybeFromStr};
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/// Information related to a dispatchable's class, weight, and fee that can be queried from the runtime.
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#[derive(Eq, PartialEq, Encode, Decode, Default)]
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#[cfg_attr(feature = "std", derive(Debug, Serialize, Deserialize))]
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#[cfg_attr(feature = "std", serde(rename_all = "camelCase"))]
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pub struct RuntimeDispatchInfo<Balance> {
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/// Weight of this dispatch.
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pub weight: Weight,
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/// Class of this dispatch.
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pub class: DispatchClass,
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/// The inclusion fee of this dispatch. This does not include a tip or anything else that
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/// depends on the signature (i.e. depends on a `SignedExtension`).
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#[cfg_attr(feature = "std", serde(bound(serialize = "Balance: std::fmt::Display")))]
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#[cfg_attr(feature = "std", serde(serialize_with = "serialize_as_string"))]
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#[cfg_attr(feature = "std", serde(bound(deserialize = "Balance: std::str::FromStr")))]
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#[cfg_attr(feature = "std", serde(deserialize_with = "deserialize_from_string"))]
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pub partial_fee: Balance,
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}
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#[cfg(feature = "std")]
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fn serialize_as_string<S: Serializer, T: std::fmt::Display>(t: &T, serializer: S) -> Result<S::Ok, S::Error> {
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serializer.serialize_str(&t.to_string())
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}
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#[cfg(feature = "std")]
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fn deserialize_from_string<'de, D: Deserializer<'de>, T: std::str::FromStr>(deserializer: D) -> Result<T, D::Error> {
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let s = String::deserialize(deserializer)?;
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s.parse::<T>().map_err(|_| serde::de::Error::custom("Parse from string failed"))
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}
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sp_api::decl_runtime_apis! {
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pub trait TransactionPaymentApi<Balance> where
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Balance: Codec + MaybeDisplay + MaybeFromStr,
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{
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fn query_info(uxt: Block::Extrinsic, len: u32) -> RuntimeDispatchInfo<Balance>;
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn should_serialize_and_deserialize_properly_with_string() {
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let info = RuntimeDispatchInfo {
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weight: 5,
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class: DispatchClass::Normal,
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partial_fee: 1_000_000_u64,
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};
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let json_str = r#"{"weight":5,"class":"normal","partialFee":"1000000"}"#;
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assert_eq!(serde_json::to_string(&info).unwrap(), json_str);
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assert_eq!(serde_json::from_str::<RuntimeDispatchInfo<u64>>(json_str).unwrap(), info);
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// should not panic
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serde_json::to_value(&info).unwrap();
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}
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#[test]
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fn should_serialize_and_deserialize_properly_large_value() {
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let info = RuntimeDispatchInfo {
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weight: 5,
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class: DispatchClass::Normal,
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partial_fee: u128::max_value(),
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};
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let json_str = r#"{"weight":5,"class":"normal","partialFee":"340282366920938463463374607431768211455"}"#;
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assert_eq!(serde_json::to_string(&info).unwrap(), json_str);
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assert_eq!(serde_json::from_str::<RuntimeDispatchInfo<u128>>(json_str).unwrap(), info);
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// should not panic
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serde_json::to_value(&info).unwrap();
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}
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}
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