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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/trait-upcasting/basic.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/trait-upcasting/basic.rs | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/src/test/ui/traits/trait-upcasting/basic.rs b/src/test/ui/traits/trait-upcasting/basic.rs new file mode 100644 index 000000000..484a222bc --- /dev/null +++ b/src/test/ui/traits/trait-upcasting/basic.rs @@ -0,0 +1,87 @@ +// run-pass + +#![feature(trait_upcasting)] +#![allow(incomplete_features)] + +trait Foo: PartialEq<i32> + std::fmt::Debug + Send + Sync { + fn a(&self) -> i32 { + 10 + } + + fn z(&self) -> i32 { + 11 + } + + fn y(&self) -> i32 { + 12 + } +} + +trait Bar: Foo { + fn b(&self) -> i32 { + 20 + } + + fn w(&self) -> i32 { + 21 + } +} + +trait Baz: Bar { + fn c(&self) -> i32 { + 30 + } +} + +impl Foo for i32 { + fn a(&self) -> i32 { + 100 + } +} + +impl Bar for i32 { + fn b(&self) -> i32 { + 200 + } +} + +impl Baz for i32 { + fn c(&self) -> i32 { + 300 + } +} + +fn main() { + let baz: &dyn Baz = &1; + let _: &dyn std::fmt::Debug = baz; + assert_eq!(*baz, 1); + assert_eq!(baz.a(), 100); + assert_eq!(baz.b(), 200); + assert_eq!(baz.c(), 300); + assert_eq!(baz.z(), 11); + assert_eq!(baz.y(), 12); + assert_eq!(baz.w(), 21); + + let bar: &dyn Bar = baz; + let _: &dyn std::fmt::Debug = bar; + assert_eq!(*bar, 1); + assert_eq!(bar.a(), 100); + assert_eq!(bar.b(), 200); + assert_eq!(bar.z(), 11); + assert_eq!(bar.y(), 12); + assert_eq!(bar.w(), 21); + + let foo: &dyn Foo = baz; + let _: &dyn std::fmt::Debug = foo; + assert_eq!(*foo, 1); + assert_eq!(foo.a(), 100); + assert_eq!(foo.z(), 11); + assert_eq!(foo.y(), 12); + + let foo: &dyn Foo = bar; + let _: &dyn std::fmt::Debug = foo; + assert_eq!(*foo, 1); + assert_eq!(foo.a(), 100); + assert_eq!(foo.z(), 11); + assert_eq!(foo.y(), 12); +} |