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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:31 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:31 +0000 |
commit | 2ff14448863ac1a1dd9533461708e29aae170c2d (patch) | |
tree | 85b9fea2bbfe3f06473cfa381eed11f273b57c5c /src/test/ui/generic-associated-types/type-param-defaults.rs | |
parent | Adding debian version 1.64.0+dfsg1-1. (diff) | |
download | rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.tar.xz rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.zip |
Adding debian version 1.65.0+dfsg1-2.debian/1.65.0+dfsg1-2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/generic-associated-types/type-param-defaults.rs | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/test/ui/generic-associated-types/type-param-defaults.rs b/src/test/ui/generic-associated-types/type-param-defaults.rs new file mode 100644 index 000000000..f034076b0 --- /dev/null +++ b/src/test/ui/generic-associated-types/type-param-defaults.rs @@ -0,0 +1,34 @@ +// Check that we disallow GAT param defaults, even with `invalid_type_param_default` allowed + +#![allow(invalid_type_param_default)] + +trait Trait { + type Assoc<T = u32>; + //~^ defaults for type parameters are only allowed +} + +impl Trait for () { + type Assoc<T = u32> = u64; + //~^ defaults for type parameters are only allowed +} + +impl Trait for u32 { + type Assoc<T = u32> = T; + //~^ defaults for type parameters are only allowed +} + +trait Other {} +impl Other for u32 {} + +fn foo<T>() +where + T: Trait<Assoc = u32>, + T::Assoc: Other { + } + +fn main() { + // errors + foo::<()>(); + // works + foo::<u32>(); +} |