56 lines
1.5 KiB
Rust
56 lines
1.5 KiB
Rust
//@ build-pass
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#![feature(coroutines, negative_impls, stmt_expr_attributes)]
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#![allow(dropping_references, dropping_copy_types)]
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macro_rules! type_combinations {
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(
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$( $name:ident => { $( $tt:tt )* } );*
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) => { $(
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mod $name {
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pub mod unsync {
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$( $tt )*
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impl !Sync for Client {}
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}
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pub mod unsend {
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$( $tt )*
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impl !Send for Client {}
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}
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}
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// This is the same bug as issue 57017, but using yield instead of await
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{
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let g = #[coroutine] move || match drop(&$name::unsync::Client::default()) {
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_status => yield,
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};
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assert_send(g);
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}
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// This tests that `Client` is properly considered to be dropped after moving it into the
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// function.
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{
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let g = #[coroutine] move || match drop($name::unsend::Client::default()) {
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_status => yield,
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};
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assert_send(g);
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}
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)* }
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}
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fn assert_send<T: Send>(_thing: T) {}
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fn main() {
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type_combinations!(
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copy => { #[derive(Copy, Clone, Default)] pub struct Client; };
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derived_drop => { #[derive(Default)] pub struct Client { pub nickname: String } };
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significant_drop => {
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#[derive(Default)]
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pub struct Client;
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impl Drop for Client {
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fn drop(&mut self) {}
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}
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}
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);
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}
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