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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/inference/cannot-infer-partial-try-return.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/inference/cannot-infer-partial-try-return.rs')
-rw-r--r-- | tests/ui/inference/cannot-infer-partial-try-return.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tests/ui/inference/cannot-infer-partial-try-return.rs b/tests/ui/inference/cannot-infer-partial-try-return.rs new file mode 100644 index 000000000..b555697dc --- /dev/null +++ b/tests/ui/inference/cannot-infer-partial-try-return.rs @@ -0,0 +1,23 @@ +struct QualifiedError<E>(E); + +impl<E, T> From<E> for QualifiedError<T> +where + E: std::error::Error, + T: From<E>, +{ + fn from(e: E) -> QualifiedError<T> { + QualifiedError(e.into()) + } +} + +fn infallible() -> Result<(), std::convert::Infallible> { + Ok(()) +} + +fn main() { + let x = || -> Result<_, QualifiedError<_>> { + infallible()?; + Ok(()) + //~^ ERROR type annotations needed + }; +} |