sc_chain_spec_derive/
lib.rs

1// This file is part of Substrate.
2
3// Copyright (C) Parity Technologies (UK) Ltd.
4// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
5
6// This program is free software: you can redistribute it and/or modify
7// it under the terms of the GNU General Public License as published by
8// the Free Software Foundation, either version 3 of the License, or
9// (at your option) any later version.
10
11// This program is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License
17// along with this program. If not, see <https://www.gnu.org/licenses/>.
18
19//! Macros to derive chain spec extension traits implementation.
20
21mod impls;
22
23use proc_macro::TokenStream;
24
25#[proc_macro_derive(ChainSpecGroup)]
26pub fn group_derive(input: TokenStream) -> TokenStream {
27	match syn::parse(input) {
28		Ok(ast) => impls::group_derive(&ast),
29		Err(e) => e.to_compile_error().into(),
30	}
31}
32
33#[proc_macro_derive(ChainSpecExtension, attributes(forks))]
34pub fn extensions_derive(input: TokenStream) -> TokenStream {
35	match syn::parse(input) {
36		Ok(ast) => impls::extension_derive(&ast),
37		Err(e) => e.to_compile_error().into(),
38	}
39}
sc_chain_spec_derive/lib.rs

sc_chain_spec_derive/
lib.rs
