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| author | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-05 09:13:28 +0100 |
|---|---|---|
| committer | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-11 09:32:08 +0000 |
| commit | cf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch) | |
| tree | 40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/ui/traits/object/with-self-in-projection-output-good.rs | |
| parent | ca855e6e42787ecd062d81d53336fe6788ef51a9 (diff) | |
| download | rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip | |
Move /src/test to /tests
Diffstat (limited to 'tests/ui/traits/object/with-self-in-projection-output-good.rs')
| -rw-r--r-- | tests/ui/traits/object/with-self-in-projection-output-good.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tests/ui/traits/object/with-self-in-projection-output-good.rs b/tests/ui/traits/object/with-self-in-projection-output-good.rs new file mode 100644 index 00000000000..d1b7bf6c2d7 --- /dev/null +++ b/tests/ui/traits/object/with-self-in-projection-output-good.rs @@ -0,0 +1,28 @@ +// build-pass (FIXME(62277): could be check-pass?) + +// Regression test related to #56288. Check that a supertrait projection (of +// `Output`) that references `Self` can be ok if it is referencing a projection (of +// `Self::Target`, in this case). Note that we still require the user to manually +// specify both `Target` and `Output` for now. + +trait Base { + type Output; +} + +trait Helper: Base<Output=<Self as Helper>::Target> { + type Target; +} + +impl Base for u32 +{ + type Output = i32; +} + +impl Helper for u32 +{ + type Target = i32; +} + +fn main() { + let _x: Box<dyn Helper<Target=i32, Output=i32>> = Box::new(2u32); +} |
