diff options
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/issues/issue-39292.rs | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-39292.rs b/src/test/ui/issues/issue-39292.rs new file mode 100644 index 000000000..968cf0891 --- /dev/null +++ b/src/test/ui/issues/issue-39292.rs @@ -0,0 +1,17 @@ +// run-pass +// Regression test for issue #39292. The object vtable was being +// incorrectly left with a null pointer. + +trait Foo<T> { + fn print<'a>(&'a self) where T: 'a { println!("foo"); } +} + +impl<'a> Foo<&'a ()> for () { } + +trait Bar: for<'a> Foo<&'a ()> { } + +impl Bar for () {} + +fn main() { + (&() as &dyn Bar).print(); // Segfault +} |