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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/borrowck/borrowck-univariant-enum.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/borrowck/borrowck-univariant-enum.rs')
-rw-r--r-- | src/test/ui/borrowck/borrowck-univariant-enum.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/borrowck-univariant-enum.rs b/src/test/ui/borrowck/borrowck-univariant-enum.rs new file mode 100644 index 000000000..c78e94752 --- /dev/null +++ b/src/test/ui/borrowck/borrowck-univariant-enum.rs @@ -0,0 +1,25 @@ +// run-pass +#![allow(non_camel_case_types)] + +use std::cell::Cell; + +#[derive(Copy, Clone)] +enum newtype { + newvar(isize) +} + +pub fn main() { + + // Test that borrowck treats enums with a single variant + // specially. + + let x = &Cell::new(5); + let y = &Cell::new(newtype::newvar(3)); + let z = match y.get() { + newtype::newvar(b) => { + x.set(x.get() + 1); + x.get() * b + } + }; + assert_eq!(z, 18); +} |