diff options
Diffstat (limited to 'src/test/ui/higher-rank-trait-bounds/normalize-under-binder/issue-62529-3.rs')
-rw-r--r-- | src/test/ui/higher-rank-trait-bounds/normalize-under-binder/issue-62529-3.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/higher-rank-trait-bounds/normalize-under-binder/issue-62529-3.rs b/src/test/ui/higher-rank-trait-bounds/normalize-under-binder/issue-62529-3.rs new file mode 100644 index 000000000..d84e30f49 --- /dev/null +++ b/src/test/ui/higher-rank-trait-bounds/normalize-under-binder/issue-62529-3.rs @@ -0,0 +1,32 @@ +trait ATC<'a> { + type Type: Sized; +} + +trait WithDefault: for<'a> ATC<'a> { + fn with_default<F: for<'a> Fn(<Self as ATC<'a>>::Type)>(f: F); +} + +fn call<'b, T: for<'a> ATC<'a>, F: for<'a> Fn(<T as ATC<'a>>::Type)>( + f: F, + x: <T as ATC<'b>>::Type, +) { + f(x); +} + +impl<'a> ATC<'a> for () { + type Type = Self; +} + +impl WithDefault for () { + fn with_default<F: for<'a> Fn(<Self as ATC<'a>>::Type)>(f: F) { + // Errors with a bogus type mismatch. + //f(()); + // Going through another generic function works fine. + call(f, ()); + //~^ expected a + } +} + +fn main() { + // <()>::with_default(|_| {}); +} |