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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/type-alias-impl-trait/bounds-are-checked.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/type-alias-impl-trait/bounds-are-checked.rs')
-rw-r--r-- | src/test/ui/type-alias-impl-trait/bounds-are-checked.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-impl-trait/bounds-are-checked.rs b/src/test/ui/type-alias-impl-trait/bounds-are-checked.rs new file mode 100644 index 000000000..83d22161e --- /dev/null +++ b/src/test/ui/type-alias-impl-trait/bounds-are-checked.rs @@ -0,0 +1,24 @@ +// Make sure that we check that impl trait types implement the traits that they +// claim to. + +#![feature(type_alias_impl_trait)] + +type X<'a> = impl Into<&'static str> + From<&'a str>; + +fn f<'a: 'static>(t: &'a str) -> X<'a> { + //~^ WARNING unnecessary lifetime parameter + t + //~^ ERROR non-defining opaque type use +} + +fn extend_lt<'a>(o: &'a str) -> &'static str { + X::<'_>::from(o).into() +} + +fn main() { + let r = { + let s = "abcdef".to_string(); + extend_lt(&s) + }; + println!("{}", r); +} |