diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/consts/issue-87046.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/consts/issue-87046.rs')
-rw-r--r-- | tests/ui/consts/issue-87046.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tests/ui/consts/issue-87046.rs b/tests/ui/consts/issue-87046.rs new file mode 100644 index 000000000..4b8f9f536 --- /dev/null +++ b/tests/ui/consts/issue-87046.rs @@ -0,0 +1,33 @@ +// Regression test for the ICE described in #87046. + +#![crate_type="lib"] +#![allow(unreachable_patterns)] + +#[derive(PartialEq, Eq)] +#[repr(transparent)] +pub struct Username(str); + +pub const ROOT_USER: &Username = Username::from_str("root"); + +impl Username { + pub const fn from_str(raw: &str) -> &Self { + union Transmute<'a> { + raw: &'a str, + typed: &'a Username, + } + + unsafe { Transmute { raw }.typed } + } + + pub const fn as_str(&self) -> &str { + &self.0 + } + + pub fn is_root(&self) -> bool { + match self { + ROOT_USER => true, + //~^ ERROR: cannot use unsized non-slice type `Username` in constant patterns + _ => false, + } + } +} |