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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/issues/issue-56870.rs | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-56870.rs b/src/test/ui/issues/issue-56870.rs new file mode 100644 index 000000000..137a0ede0 --- /dev/null +++ b/src/test/ui/issues/issue-56870.rs @@ -0,0 +1,38 @@ +// build-pass +// Regression test for #56870: Internal compiler error (traits & associated consts) + +use std::fmt::Debug; + +pub trait Foo<T> { + const FOO: *const u8; +} + +impl <T: Debug> Foo<T> for dyn Debug { + const FOO: *const u8 = <T as Debug>::fmt as *const u8; +} + +pub trait Bar { + const BAR: *const u8; +} + +pub trait Baz { + type Data: Debug; +} + +pub struct BarStruct<S: Baz>(S); + +impl<S: Baz> Bar for BarStruct<S> { + const BAR: *const u8 = <dyn Debug as Foo<<S as Baz>::Data>>::FOO; +} + +struct AnotherStruct; +#[derive(Debug)] +struct SomeStruct; + +impl Baz for AnotherStruct { + type Data = SomeStruct; +} + +fn main() { + let _x = <BarStruct<AnotherStruct> as Bar>::BAR; +} |