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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:25 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:25 +0000 |
commit | 5363f350887b1e5b5dd21a86f88c8af9d7fea6da (patch) | |
tree | 35ca005eb6e0e9a1ba3bb5dbc033209ad445dc17 /src/test/ui/impl-trait/issues/issue-104815.rs | |
parent | Adding debian version 1.66.0+dfsg1-1. (diff) | |
download | rustc-5363f350887b1e5b5dd21a86f88c8af9d7fea6da.tar.xz rustc-5363f350887b1e5b5dd21a86f88c8af9d7fea6da.zip |
Merging upstream version 1.67.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/impl-trait/issues/issue-104815.rs')
-rw-r--r-- | src/test/ui/impl-trait/issues/issue-104815.rs | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/issues/issue-104815.rs b/src/test/ui/impl-trait/issues/issue-104815.rs new file mode 100644 index 000000000..7a9826a8d --- /dev/null +++ b/src/test/ui/impl-trait/issues/issue-104815.rs @@ -0,0 +1,66 @@ +// check-pass + +struct It; + +struct Data { + items: Vec<It>, +} + +impl Data { + fn new() -> Self { + Self { + items: vec![It, It], + } + } + + fn content(&self) -> impl Iterator<Item = &It> { + self.items.iter() + } +} + +struct Container<'a> { + name: String, + resolver: Box<dyn Resolver + 'a>, +} + +impl<'a> Container<'a> { + fn new<R: Resolver + 'a>(name: &str, resolver: R) -> Self { + Self { + name: name.to_owned(), + resolver: Box::new(resolver), + } + } +} + +trait Resolver {} + +impl<R: Resolver> Resolver for &R {} + +impl Resolver for It {} + +fn get<'a>(mut items: impl Iterator<Item = &'a It>) -> impl Resolver + 'a { + items.next().unwrap() +} + +fn get2<'a, 'b: 'b>(mut items: impl Iterator<Item = &'a It>) -> impl Resolver + 'a { + items.next().unwrap() +} + +fn main() { + let data = Data::new(); + let resolver = get(data.content()); + + let _ = ["a", "b"] + .iter() + .map(|&n| Container::new(n, &resolver)) + .map(|c| c.name) + .collect::<Vec<_>>(); + + let resolver = get2(data.content()); + + let _ = ["a", "b"] + .iter() + .map(|&n| Container::new(n, &resolver)) + .map(|c| c.name) + .collect::<Vec<_>>(); +} |