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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/issues/issue-30530.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/issues/issue-30530.rs')
-rw-r--r-- | tests/ui/issues/issue-30530.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tests/ui/issues/issue-30530.rs b/tests/ui/issues/issue-30530.rs new file mode 100644 index 000000000..111fb8aa5 --- /dev/null +++ b/tests/ui/issues/issue-30530.rs @@ -0,0 +1,28 @@ +// run-pass +// Regression test for Issue #30530: alloca's created for storing +// intermediate scratch values during brace-less match arms need to be +// initialized with their drop-flag set to "dropped" (or else we end +// up running the destructors on garbage data at the end of the +// function). + +pub enum Handler { + Default, + #[allow(dead_code)] + Custom(*mut Box<dyn Fn()>), +} + +fn main() { + #[allow(unused_must_use)] { + take(Handler::Default, Box::new(main)); + } +} + +#[inline(never)] +pub fn take(h: Handler, f: Box<dyn Fn()>) -> Box<dyn Fn()> { + unsafe { + match h { + Handler::Custom(ptr) => *Box::from_raw(ptr), + Handler::Default => f, + } + } +} |