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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/traits/inheritance/diamond.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 '')
-rw-r--r-- | src/test/ui/traits/inheritance/diamond.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/traits/inheritance/diamond.rs b/src/test/ui/traits/inheritance/diamond.rs new file mode 100644 index 000000000..32ad0fb4d --- /dev/null +++ b/src/test/ui/traits/inheritance/diamond.rs @@ -0,0 +1,28 @@ +// run-pass +#![allow(dead_code)] +// B and C both require A, so D does as well, twice, but that's just fine + + +trait A { fn a(&self) -> isize; } +trait B: A { fn b(&self) -> isize; } +trait C: A { fn c(&self) -> isize; } +trait D: B + C { fn d(&self) -> isize; } + +struct S { bogus: () } + +impl A for S { fn a(&self) -> isize { 10 } } +impl B for S { fn b(&self) -> isize { 20 } } +impl C for S { fn c(&self) -> isize { 30 } } +impl D for S { fn d(&self) -> isize { 40 } } + +fn f<T:D>(x: &T) { + assert_eq!(x.a(), 10); + assert_eq!(x.b(), 20); + assert_eq!(x.c(), 30); + assert_eq!(x.d(), 40); +} + +pub fn main() { + let value = &S { bogus: () }; + f(value); +} |