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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/cast-without-call-to-supertrait.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/cast-without-call-to-supertrait.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/test/ui/traits/inheritance/cast-without-call-to-supertrait.rs b/src/test/ui/traits/inheritance/cast-without-call-to-supertrait.rs new file mode 100644 index 000000000..25159c1ad --- /dev/null +++ b/src/test/ui/traits/inheritance/cast-without-call-to-supertrait.rs @@ -0,0 +1,33 @@ +// run-pass +#![allow(dead_code)] +// Testing that we can cast to a subtrait and call subtrait +// methods. Not testing supertrait methods + + +trait Foo { + fn f(&self) -> isize; +} + +trait Bar : Foo { + fn g(&self) -> isize; +} + +struct A { + x: isize +} + +impl Foo for A { + fn f(&self) -> isize { 10 } +} + +impl Bar for A { + fn g(&self) -> isize { 20 } +} + +pub fn main() { + let a = &A { x: 3 }; + let afoo = a as &dyn Foo; + let abar = a as &dyn Bar; + assert_eq!(afoo.f(), 10); + assert_eq!(abar.g(), 20); +} |