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| author | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-05 09:13:28 +0100 |
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| committer | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-11 09:32:08 +0000 |
| commit | cf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch) | |
| tree | 40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/ui/object-lifetime/object-lifetime-default-inferred.rs | |
| parent | ca855e6e42787ecd062d81d53336fe6788ef51a9 (diff) | |
| download | rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip | |
Move /src/test to /tests
Diffstat (limited to 'tests/ui/object-lifetime/object-lifetime-default-inferred.rs')
| -rw-r--r-- | tests/ui/object-lifetime/object-lifetime-default-inferred.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tests/ui/object-lifetime/object-lifetime-default-inferred.rs b/tests/ui/object-lifetime/object-lifetime-default-inferred.rs new file mode 100644 index 00000000000..8a1156b8fc8 --- /dev/null +++ b/tests/ui/object-lifetime/object-lifetime-default-inferred.rs @@ -0,0 +1,35 @@ +// run-pass +// Test that even with prior inferred parameters, object lifetimes of objects after are still +// valid. + +// pretty-expanded FIXME #23616 + +#![allow(dead_code)] +#![feature(generic_arg_infer)] + +trait Test { + fn foo(&self) { } +} + +struct Foo; +impl Test for Foo {} + +struct SomeStruct<'a> { + t: &'a dyn Test, + u: &'a (dyn Test+'a), +} + +fn a<'a, const N: usize>(_: [u8; N], t: &'a (dyn Test+'a), mut ss: SomeStruct<'a>) { + ss.t = t; +} + +fn b<'a, T>(_: T, t: &'a (dyn Test+'a), mut ss: SomeStruct<'a>) { + ss.u = t; +} + +fn main() { + // Inside a function body, we can just infer both + // lifetimes, to allow &'tmp (Display+'static). + a::<_>([], &Foo as &dyn Test, SomeStruct{t:&Foo,u:&Foo}); + b::<_>(0u8, &Foo as &dyn Test, SomeStruct{t:&Foo,u:&Foo}); +} |
