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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/match-cfg-fake-edges2.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/match-cfg-fake-edges2.rs')
-rw-r--r-- | tests/ui/nll/match-cfg-fake-edges2.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/ui/nll/match-cfg-fake-edges2.rs b/tests/ui/nll/match-cfg-fake-edges2.rs new file mode 100644 index 000000000..48f95e03b --- /dev/null +++ b/tests/ui/nll/match-cfg-fake-edges2.rs @@ -0,0 +1,18 @@ +// Test that we have enough false edges to avoid exposing the exact matching +// algorithm in borrow checking. + +fn all_previous_tests_may_be_done(y: &mut (bool, bool)) { + let r = &mut y.1; + // We don't actually test y.1 to select the second arm, but we don't want + // borrowck results to be based on the order we match patterns. + match y { //~ ERROR cannot use `y.1` because it was mutably borrowed + (false, true) => 1, + (true, _) => { + r; + 2 + } + (false, _) => 3, + }; +} + +fn main() {} |