mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 15:47:58 +00:00
Bastian Köcher
e3e651f72c
* Happy new year Updates the copyright years and fixes wrong license headers. * Fix the template * Split HEADER into HEADER-APACHE & HEADER-GPL
73 lines
2.2 KiB
Rust
73 lines
2.2 KiB
Rust
// This file is part of Substrate.
|
|
|
|
// Copyright (C) 2019-2021 Parity Technologies (UK) Ltd.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
use crate::utils::generate_runtime_interface_include;
|
|
|
|
use proc_macro2::{Span, TokenStream};
|
|
|
|
use syn::{Ident, ItemTrait, Result};
|
|
|
|
use inflector::Inflector;
|
|
|
|
use quote::quote;
|
|
|
|
mod bare_function_interface;
|
|
mod host_function_interface;
|
|
mod trait_decl_impl;
|
|
|
|
/// Custom keywords supported by the `runtime_interface` attribute.
|
|
pub mod keywords {
|
|
// Custom keyword `wasm_only` that can be given as attribute to [`runtime_interface`].
|
|
syn::custom_keyword!(wasm_only);
|
|
// Disable tracing-macros added to the [`runtime_interface`] by specifying this optional entry
|
|
syn::custom_keyword!(no_tracing);
|
|
}
|
|
|
|
/// Implementation of the `runtime_interface` attribute.
|
|
///
|
|
/// It expects the trait definition the attribute was put above and if this should be an wasm only
|
|
/// interface.
|
|
pub fn runtime_interface_impl(
|
|
trait_def: ItemTrait,
|
|
is_wasm_only: bool,
|
|
tracing: bool,
|
|
) -> Result<TokenStream> {
|
|
let bare_functions = bare_function_interface::generate(&trait_def, is_wasm_only, tracing)?;
|
|
let crate_include = generate_runtime_interface_include();
|
|
let mod_name = Ident::new(&trait_def.ident.to_string().to_snake_case(), Span::call_site());
|
|
let trait_decl_impl = trait_decl_impl::process(&trait_def, is_wasm_only)?;
|
|
let host_functions = host_function_interface::generate(&trait_def, is_wasm_only)?;
|
|
let vis = trait_def.vis;
|
|
let attrs = &trait_def.attrs;
|
|
|
|
let res = quote! {
|
|
#( #attrs )*
|
|
#vis mod #mod_name {
|
|
use super::*;
|
|
#crate_include
|
|
|
|
#bare_functions
|
|
|
|
#trait_decl_impl
|
|
|
|
#host_functions
|
|
}
|
|
};
|
|
|
|
Ok(res)
|
|
}
|