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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:11:38 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:13:23 +0000 |
commit | 20431706a863f92cb37dc512fef6e48d192aaf2c (patch) | |
tree | 2867f13f5fd5437ba628c67d7f87309ccadcd286 /src/test/ui/async-await/in-trait/issue-102138.rs | |
parent | Releasing progress-linux version 1.65.0+dfsg1-2~progress7.99u1. (diff) | |
download | rustc-20431706a863f92cb37dc512fef6e48d192aaf2c.tar.xz rustc-20431706a863f92cb37dc512fef6e48d192aaf2c.zip |
Merging upstream version 1.66.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/async-await/in-trait/issue-102138.rs | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/test/ui/async-await/in-trait/issue-102138.rs b/src/test/ui/async-await/in-trait/issue-102138.rs new file mode 100644 index 000000000..f61b34ed9 --- /dev/null +++ b/src/test/ui/async-await/in-trait/issue-102138.rs @@ -0,0 +1,46 @@ +// check-pass +// edition:2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +use std::future::Future; + +async fn yield_now() {} + +trait AsyncIterator { + type Item; + async fn next(&mut self) -> Option<Self::Item>; +} + +struct YieldingRange { + counter: u32, + stop: u32, +} + +impl AsyncIterator for YieldingRange { + type Item = u32; + + async fn next(&mut self) -> Option<Self::Item> { + if self.counter == self.stop { + None + } else { + let c = self.counter; + self.counter += 1; + yield_now().await; + Some(c) + } + } +} + +async fn async_main() { + let mut x = YieldingRange { counter: 0, stop: 10 }; + + while let Some(v) = x.next().await { + println!("Hi: {v}"); + } +} + +fn main() { + let _ = async_main(); +} |