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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/type-alias-impl-trait/generic_underconstrained2.rs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-impl-trait/generic_underconstrained2.rs b/src/test/ui/type-alias-impl-trait/generic_underconstrained2.rs new file mode 100644 index 000000000..8adc0bf32 --- /dev/null +++ b/src/test/ui/type-alias-impl-trait/generic_underconstrained2.rs @@ -0,0 +1,19 @@ +#![feature(type_alias_impl_trait)] + +fn main() {} + +type Underconstrained<T: std::fmt::Debug> = impl Send; + +// not a defining use, because it doesn't define *all* possible generics +fn underconstrained<U>(_: U) -> Underconstrained<U> { + //~^ ERROR `U` doesn't implement `Debug` + 5u32 +} + +type Underconstrained2<T: std::fmt::Debug> = impl Send; + +// not a defining use, because it doesn't define *all* possible generics +fn underconstrained2<U, V>(_: U, _: V) -> Underconstrained2<V> { + //~^ ERROR `V` doesn't implement `Debug` + 5u32 +} |