diff options
Diffstat (limited to 'src/test/ui/traits/issue-78632.rs')
-rw-r--r-- | src/test/ui/traits/issue-78632.rs | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/test/ui/traits/issue-78632.rs b/src/test/ui/traits/issue-78632.rs new file mode 100644 index 000000000..c72a2aef4 --- /dev/null +++ b/src/test/ui/traits/issue-78632.rs @@ -0,0 +1,59 @@ +// check-pass +// +// Regression test for issue #78632 + +#![crate_type = "lib"] + +pub trait Corge<T> { + type Fred; +} + +impl Corge<u8> for () { + type Fred = u32; +} + +pub trait Waldo { + type Quax; +} + +impl Waldo for u32 { + type Quax = u8; +} + +pub trait Grault +where + (): Corge<Self::Thud>, +{ + type Thud; + fn bar(_: <() as Corge<Self::Thud>>::Fred) {} +} + +impl<T> Grault for T +where + T: Waldo, + (): Corge<T::Quax>, + <() as Corge<T::Quax>>::Fred: Waldo, +{ + type Thud = u8; +} + +pub trait Plugh<I> { + fn baz(); +} + +#[derive(Copy, Clone, Debug)] +pub struct Qiz<T> { + foo: T, +} + +impl<T> Plugh<<() as Corge<T::Thud>>::Fred> for Qiz<T> +where + T: Grault, + (): Corge<T::Thud>, +{ + fn baz() {} +} + +pub fn test() { + <Qiz<u32> as Plugh<u32>>::baz(); +} |