mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-06-23 02:41:08 +00:00
Bastian Köcher
7b56ab15b4
* Run cargo fmt on the whole code base * Second run * Add CI check * Fix compilation * More unnecessary braces * Handle weights * Use --all * Use correct attributes... * Fix UI tests * AHHHHHHHHH * 🤦 * Docs * Fix compilation * 🤷 * Please stop * 🤦 x 2 * More * make rustfmt.toml consistent with polkadot Co-authored-by: André Silva <andrerfosilva@gmail.com>
40 lines
1.5 KiB
Rust
40 lines
1.5 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) 2019-2021 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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//! Stores the externalities in an `environmental` value to make it scope limited available.
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use crate::Externalities;
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environmental::environmental!(ext: trait Externalities);
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/// Set the given externalities while executing the given closure. To get access to the externalities
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/// while executing the given closure [`with_externalities`] grants access to them. The externalities
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/// are only set for the same thread this function was called from.
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pub fn set_and_run_with_externalities<F, R>(ext: &mut dyn Externalities, f: F) -> R
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where
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F: FnOnce() -> R,
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{
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ext::using(ext, f)
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}
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/// Execute the given closure with the currently set externalities.
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///
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/// Returns `None` if no externalities are set or `Some(_)` with the result of the closure.
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pub fn with_externalities<F: FnOnce(&mut dyn Externalities) -> R, R>(f: F) -> Option<R> {
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ext::with(f)
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}
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