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/* * Copyright 2020 Fluence Labs Limited * * 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::parse_macro_input::ParseMacroInput; use proc_macro2::TokenStream; use quote::ToTokens; use syn::Result; pub fn fce(tokens: TokenStream) -> Result<TokenStream> { let item = syn::parse2::<syn::Item>(tokens)?; // convert proc_macro2 token to internal AST type let fce_ast_item = item.parse_macro_input()?; // convert internal AST type to sequence of tokens let mut tokens = TokenStream::new(); fce_ast_item.to_tokens(&mut tokens); Ok(tokens) }