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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:57:31 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:57:31 +0000 |
commit | dc0db358abe19481e475e10c32149b53370f1a1c (patch) | |
tree | ab8ce99c4b255ce46f99ef402c27916055b899ee /tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness.rs | |
parent | Releasing progress-linux version 1.71.1+dfsg1-2~progress7.99u1. (diff) | |
download | rustc-dc0db358abe19481e475e10c32149b53370f1a1c.tar.xz rustc-dc0db358abe19481e475e10c32149b53370f1a1c.zip |
Merging upstream version 1.72.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness.rs')
-rw-r--r-- | tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness.rs new file mode 100644 index 000000000..5c2a3f801 --- /dev/null +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness.rs @@ -0,0 +1,31 @@ +#![feature(const_trait_impl, min_specialization, rustc_attrs)] + +#[rustc_specialization_trait] +#[const_trait] +pub trait Sup {} + +impl const Sup for () {} + +#[const_trait] +pub trait A { + fn a() -> u32; +} + +#[const_trait] +pub trait Spec {} + +impl<T: ~const Spec> const A for T { + default fn a() -> u32 { + 2 + } +} + +impl<T: Spec + Sup> A for T { +//~^ ERROR: cannot specialize +//~| ERROR: missing `~const` qualifier + fn a() -> u32 { + 3 + } +} + +fn main() {} |