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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/rfc-2632-const-trait-impl/trait-default-body-stability.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 'src/test/ui/rfc-2632-const-trait-impl/trait-default-body-stability.rs')
-rw-r--r-- | src/test/ui/rfc-2632-const-trait-impl/trait-default-body-stability.rs | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/test/ui/rfc-2632-const-trait-impl/trait-default-body-stability.rs b/src/test/ui/rfc-2632-const-trait-impl/trait-default-body-stability.rs new file mode 100644 index 000000000..334fc4cb8 --- /dev/null +++ b/src/test/ui/rfc-2632-const-trait-impl/trait-default-body-stability.rs @@ -0,0 +1,50 @@ +// check-pass + +#![feature(staged_api)] +#![feature(const_trait_impl)] +#![feature(const_t_try)] +#![feature(const_try)] +#![feature(try_trait_v2)] + +#![stable(feature = "foo", since = "1.0")] + +use std::ops::{ControlFlow, FromResidual, Try}; + +#[stable(feature = "foo", since = "1.0")] +pub struct T; + +#[stable(feature = "foo", since = "1.0")] +#[rustc_const_unstable(feature = "const_t_try", issue = "none")] +impl const Try for T { + type Output = T; + type Residual = T; + + fn from_output(t: T) -> T { + t + } + + fn branch(self) -> ControlFlow<T, T> { + ControlFlow::Continue(self) + } +} + +#[stable(feature = "foo", since = "1.0")] +#[rustc_const_unstable(feature = "const_t_try", issue = "none")] +impl const FromResidual for T { + fn from_residual(t: T) -> T { + t + } +} + +#[stable(feature = "foo", since = "1.0")] +#[const_trait] +pub trait Tr { + #[stable(feature = "foo", since = "1.0")] + fn bar() -> T { + T? + // Should be allowed. + // Must enable unstable features to call this trait fn in const contexts. + } +} + +fn main() {} |