mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 13:27:57 +00:00
Vivek Pandya
bc53b9a03a
* Change copyright year to 2023 from 2022 * Fix incorrect update of copyright year * Remove years from copy right header * Fix remaining files * Fix typo in a header and remove update-copyright.sh
43 lines
1.4 KiB
Rust
43 lines
1.4 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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//! Macros to derive runtime debug implementation.
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//!
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//! This custom derive implements a `core::fmt::Debug` trait,
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//! but in case the `std` feature is enabled the implementation
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//! will actually print out the structure as regular `derive(Debug)`
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//! would do. If `std` is disabled the implementation will be empty.
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//!
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//! This behaviour is useful to prevent bloating the runtime WASM
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//! blob from unneeded code.
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//!
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//! ```rust
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//! #[derive(sp_debug_derive::RuntimeDebug)]
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//! struct MyStruct;
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//!
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//! assert_eq!(format!("{:?}", MyStruct), "MyStruct");
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//! ```
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mod impls;
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use proc_macro::TokenStream;
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#[proc_macro_derive(RuntimeDebug)]
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pub fn debug_derive(input: TokenStream) -> TokenStream {
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impls::debug_derive(syn::parse_macro_input!(input))
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}
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