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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/inheritance/repeated-supertrait.rs | |
| parent | ca855e6e42787ecd062d81d53336fe6788ef51a9 (diff) | |
| download | rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip | |
Move /src/test to /tests
Diffstat (limited to 'tests/ui/traits/inheritance/repeated-supertrait.rs')
| -rw-r--r-- | tests/ui/traits/inheritance/repeated-supertrait.rs | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/tests/ui/traits/inheritance/repeated-supertrait.rs b/tests/ui/traits/inheritance/repeated-supertrait.rs new file mode 100644 index 00000000000..cb2581ffa99 --- /dev/null +++ b/tests/ui/traits/inheritance/repeated-supertrait.rs @@ -0,0 +1,48 @@ +// run-pass +// Test a case of a trait which extends the same supertrait twice, but +// with difference type parameters. Test that we can invoke the +// various methods in various ways successfully. +// See also `ui/traits/trait-repeated-supertrait-ambig.rs`. + + +trait CompareTo<T> { + fn same_as(&self, t: T) -> bool; +} + +trait CompareToInts : CompareTo<i64> + CompareTo<u64> { +} + +impl CompareTo<i64> for i64 { + fn same_as(&self, t: i64) -> bool { *self == t } +} + +impl CompareTo<u64> for i64 { + fn same_as(&self, t: u64) -> bool { *self == (t as i64) } +} + +impl CompareToInts for i64 { } + +fn with_obj(c: &dyn CompareToInts) -> bool { + c.same_as(22_i64) && c.same_as(22_u64) +} + +fn with_trait<C:CompareToInts>(c: &C) -> bool { + c.same_as(22_i64) && c.same_as(22_u64) +} + +fn with_ufcs1<C:CompareToInts>(c: &C) -> bool { + <dyn CompareToInts>::same_as(c, 22_i64) && <dyn CompareToInts>::same_as(c, 22_u64) +} + +fn with_ufcs2<C:CompareToInts>(c: &C) -> bool { + CompareTo::same_as(c, 22_i64) && CompareTo::same_as(c, 22_u64) +} + +fn main() { + assert_eq!(22_i64.same_as(22_i64), true); + assert_eq!(22_i64.same_as(22_u64), true); + assert_eq!(with_trait(&22), true); + assert_eq!(with_obj(&22), true); + assert_eq!(with_ufcs1(&22), true); + assert_eq!(with_ufcs2(&22), true); +} |
