| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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. |
| |
| extern crate proc_macro; |
| use proc_macro::TokenStream; |
| use quote::quote; |
| use syn::parse_macro_input; |
| use syn::ItemFn; |
| |
| #[proc_macro_attribute] |
| pub fn test_case(_attr: TokenStream, input: TokenStream) -> TokenStream { |
| let f = parse_macro_input!(input as ItemFn); |
| let f_ident = &f.sig.ident; |
| let q = quote!( |
| #f |
| |
| inventory::submit!( |
| teaclave_test_utils::TestCase( |
| concat!(module_path!(), "::", stringify!(#f_ident)).to_string(), |
| #f_ident |
| ) |
| ); |
| ); |
| |
| q.into() |
| } |
| |
| #[proc_macro_attribute] |
| pub fn async_test_case(_args: TokenStream, item: TokenStream) -> TokenStream { |
| let input = syn::parse_macro_input!(item as syn::ItemFn); |
| let name = &input.sig.ident; |
| |
| if input.sig.asyncness.is_none() { |
| let msg = "the async keyword is missing from the function declaration"; |
| return syn::Error::new_spanned(input.sig.fn_token, msg) |
| .to_compile_error() |
| .into(); |
| } else if !input.sig.inputs.is_empty() { |
| let msg = "the test function cannot accept arguments"; |
| return syn::Error::new_spanned(&input.sig.inputs, msg) |
| .to_compile_error() |
| .into(); |
| } else if input.sig.output != syn::ReturnType::Default { |
| let msg = "the test function cannot return outputs"; |
| return syn::Error::new_spanned(input.sig.output, msg) |
| .to_compile_error() |
| .into(); |
| } |
| |
| let result = quote!( |
| #input |
| |
| inventory::submit!( |
| teaclave_test_utils::AsyncTestCase( |
| concat!(module_path!(), "::", stringify!(#name)).to_string(), |
| || async move {#name().await }.boxed() |
| ) |
| );); |
| result.into() |
| } |