diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
commit | 4547b622d8d29df964fa2914213088b148c498fc (patch) | |
tree | 9fc6b25f3c3add6b745be9a2400a6e96140046e9 /src/test/ui/inference/issue-104649.rs | |
parent | Releasing progress-linux version 1.66.0+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-4547b622d8d29df964fa2914213088b148c498fc.tar.xz rustc-4547b622d8d29df964fa2914213088b148c498fc.zip |
Merging upstream version 1.67.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/inference/issue-104649.rs')
-rw-r--r-- | src/test/ui/inference/issue-104649.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/inference/issue-104649.rs b/src/test/ui/inference/issue-104649.rs new file mode 100644 index 000000000..4637b884d --- /dev/null +++ b/src/test/ui/inference/issue-104649.rs @@ -0,0 +1,32 @@ +type Result<T, E = Error> = ::std::result::Result<T, E>; +struct Error; + +trait ForEach { + type Input; + fn for_each<F, U>(self, f: F) + where + F: FnOnce(Self::Input) -> U; +} + +impl<T> ForEach for A<T> { + type Input = T; + fn for_each<F, U>(self, f: F) + where + F: FnOnce(Self::Input) -> U, + { + todo!() + } +} + +struct A<T>(T); + +fn main() { + let a = A(Result::Ok(Result::Ok(()))); //~ ERROR type annotations needed + a.for_each(|a: Result<_>| { + let f = || match a { + Ok(Ok(a)) => {} + Ok(Err(a)) => {} + Err(a) => {} + }; + }); +} |