From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/consts/recursive-zst-static.rs | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 tests/ui/consts/recursive-zst-static.rs (limited to 'tests/ui/consts/recursive-zst-static.rs') diff --git a/tests/ui/consts/recursive-zst-static.rs b/tests/ui/consts/recursive-zst-static.rs new file mode 100644 index 000000000..4e61634b3 --- /dev/null +++ b/tests/ui/consts/recursive-zst-static.rs @@ -0,0 +1,14 @@ +// revisions: default unleash +//[unleash]compile-flags: -Zunleash-the-miri-inside-of-you + +// This test ensures that we do not allow ZST statics to initialize themselves without ever +// actually creating a value of that type. This is important, as the ZST may have private fields +// that users can reasonably expect to only get initialized by their own code. Thus unsafe code +// can depend on this fact and will thus do unsound things when it is violated. +// See https://github.com/rust-lang/rust/issues/71078 for more details. + +static FOO: () = FOO; //~ cycle detected when const-evaluating + checking `FOO` + +fn main() { + FOO +} -- cgit v1.2.3