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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/async-await/issues/issue-64477-2.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/async-await/issues/issue-64477-2.rs')
-rw-r--r-- | src/test/ui/async-await/issues/issue-64477-2.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/async-await/issues/issue-64477-2.rs b/src/test/ui/async-await/issues/issue-64477-2.rs new file mode 100644 index 000000000..2360b57cc --- /dev/null +++ b/src/test/ui/async-await/issues/issue-64477-2.rs @@ -0,0 +1,22 @@ +// Another regression test for #64477. +// +// In the past, the code generated by `format!` produced temporaries in the surrounding scope that +// borrowed the arguments through `&dyn Trait`. These temporaries do not implement `Send`, which +// meant that when `format!` was used in an async block, the resulting generator was not `Send`. +// See https://github.com/rust-lang/rust/issues/64477#issuecomment-534669068 for details +// and https://github.com/rust-lang/rust/issues/64477#issuecomment-531882958 for an example. +// +// check-pass +// edition:2018 + +async fn foo(_: String) {} + +fn bar() -> impl Send { + async move { + foo(format!("{}:{}", 1, 2)).await; + } +} + +fn main() { + let _ = bar(); +} |