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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/macros/format-args-temporaries-async.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/macros/format-args-temporaries-async.rs')
-rw-r--r-- | src/test/ui/macros/format-args-temporaries-async.rs | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/test/ui/macros/format-args-temporaries-async.rs b/src/test/ui/macros/format-args-temporaries-async.rs new file mode 100644 index 000000000..d959329b9 --- /dev/null +++ b/src/test/ui/macros/format-args-temporaries-async.rs @@ -0,0 +1,37 @@ +// check-pass +// edition:2021 + +use std::fmt::{self, Display}; +use std::future::Future; +use std::io; +use std::pin::Pin; +use std::task::{Context, Poll}; + +struct AsyncStdout; + +impl AsyncStdout { + fn write_fmt<'a>(&'a mut self, _args: fmt::Arguments) -> WriteFmtFuture<'a, Self> + where + Self: Unpin, + { + WriteFmtFuture(self) + } +} + +struct WriteFmtFuture<'a, T>(&'a mut T); + +impl<'a, T> Future for WriteFmtFuture<'a, T> { + type Output = io::Result<()>; + fn poll(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> { + unimplemented!() + } +} + +async fn async_main() { + let _write = write!(&mut AsyncStdout, "...").await; + let _writeln = writeln!(&mut AsyncStdout, "...").await; +} + +fn main() { + let _ = async_main; +} |