From 64d98f8ee037282c35007b64c2649055c56af1db Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:03 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- .../trait-default-body-stability.rs | 50 ++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 tests/ui/rfc-2632-const-trait-impl/trait-default-body-stability.rs (limited to 'tests/ui/rfc-2632-const-trait-impl/trait-default-body-stability.rs') diff --git a/tests/ui/rfc-2632-const-trait-impl/trait-default-body-stability.rs b/tests/ui/rfc-2632-const-trait-impl/trait-default-body-stability.rs new file mode 100644 index 000000000..334fc4cb8 --- /dev/null +++ b/tests/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 { + 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() {} -- cgit v1.2.3