| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `tests/utils/proc_macro/src/lib.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>lib.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../teaclave_test_utils_proc_macro/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../teaclave_test_utils_proc_macro/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="comment">// 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. |
| |
| </span><span class="kw">extern crate </span>proc_macro; |
| <span class="kw">use </span>proc_macro::TokenStream; |
| <span class="kw">use </span>quote::quote; |
| <span class="kw">use </span>syn::parse_macro_input; |
| <span class="kw">use </span>syn::ItemFn; |
| |
| <span class="attribute">#[proc_macro_attribute] |
| </span><span class="kw">pub fn </span>test_case(_attr: TokenStream, input: TokenStream) -> TokenStream { |
| <span class="kw">let </span>f = <span class="macro">parse_macro_input!</span>(input <span class="kw">as </span>ItemFn); |
| <span class="kw">let </span>f_ident = <span class="kw-2">&</span>f.sig.ident; |
| <span class="kw">let </span>q = <span class="macro">quote!</span>( |
| #f |
| |
| <span class="macro">inventory::submit!</span>( |
| teaclave_test_utils::TestCase( |
| <span class="macro">concat!</span>(<span class="macro">module_path!</span>(), <span class="string">"::"</span>, <span class="macro">stringify!</span>(#f_ident)).to_string(), |
| #f_ident |
| ) |
| ); |
| ); |
| |
| q.into() |
| } |
| |
| <span class="attribute">#[proc_macro_attribute] |
| </span><span class="kw">pub fn </span>async_test_case(_args: TokenStream, item: TokenStream) -> TokenStream { |
| <span class="kw">let </span>input = <span class="macro">syn::parse_macro_input!</span>(item <span class="kw">as </span>syn::ItemFn); |
| <span class="kw">let </span>name = <span class="kw-2">&</span>input.sig.ident; |
| |
| <span class="kw">if </span>input.sig.asyncness.is_none() { |
| <span class="kw">let </span>msg = <span class="string">"the async keyword is missing from the function declaration"</span>; |
| <span class="kw">return </span>syn::Error::new_spanned(input.sig.fn_token, msg) |
| .to_compile_error() |
| .into(); |
| } <span class="kw">else if </span>!input.sig.inputs.is_empty() { |
| <span class="kw">let </span>msg = <span class="string">"the test function cannot accept arguments"</span>; |
| <span class="kw">return </span>syn::Error::new_spanned(<span class="kw-2">&</span>input.sig.inputs, msg) |
| .to_compile_error() |
| .into(); |
| } <span class="kw">else if </span>input.sig.output != syn::ReturnType::Default { |
| <span class="kw">let </span>msg = <span class="string">"the test function cannot return outputs"</span>; |
| <span class="kw">return </span>syn::Error::new_spanned(input.sig.output, msg) |
| .to_compile_error() |
| .into(); |
| } |
| |
| <span class="kw">let </span>result = <span class="macro">quote!</span>( |
| #input |
| |
| <span class="macro">inventory::submit!</span>( |
| teaclave_test_utils::AsyncTestCase( |
| <span class="macro">concat!</span>(<span class="macro">module_path!</span>(), <span class="string">"::"</span>, <span class="macro">stringify!</span>(#name)).to_string(), |
| || <span class="kw">async move </span>{#name().<span class="kw">await </span>}.boxed() |
| ) |
| );); |
| result.into() |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="teaclave_test_utils_proc_macro" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |