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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/nll/lub-if.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/nll/lub-if.rs')
-rw-r--r-- | tests/ui/nll/lub-if.rs | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/tests/ui/nll/lub-if.rs b/tests/ui/nll/lub-if.rs new file mode 100644 index 000000000..50225a783 --- /dev/null +++ b/tests/ui/nll/lub-if.rs @@ -0,0 +1,44 @@ +// Test that we correctly consider the type of `match` to be the LUB +// of the various arms, particularly in the case where regions are +// involved. + +pub fn opt_str0<'a>(maybestr: &'a Option<String>) -> &'a str { + if maybestr.is_none() { + "(none)" + } else { + let s: &'a str = maybestr.as_ref().unwrap(); + s + } +} + +pub fn opt_str1<'a>(maybestr: &'a Option<String>) -> &'a str { + if maybestr.is_some() { + let s: &'a str = maybestr.as_ref().unwrap(); + s + } else { + "(none)" + } +} + +pub fn opt_str2<'a>(maybestr: &'a Option<String>) -> &'static str { + if maybestr.is_none() { + "(none)" + } else { + let s: &'a str = maybestr.as_ref().unwrap(); + s + //~^ ERROR lifetime may not live long enough + } +} + +pub fn opt_str3<'a>(maybestr: &'a Option<String>) -> &'static str { + if maybestr.is_some() { + let s: &'a str = maybestr.as_ref().unwrap(); + s + //~^ ERROR lifetime may not live long enough + } else { + "(none)" + } +} + + +fn main() {} |