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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/nll/match-cfg-fake-edges2.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/nll/match-cfg-fake-edges2.rs')
-rw-r--r-- | src/test/ui/nll/match-cfg-fake-edges2.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/nll/match-cfg-fake-edges2.rs b/src/test/ui/nll/match-cfg-fake-edges2.rs new file mode 100644 index 000000000..48f95e03b --- /dev/null +++ b/src/test/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() {} |