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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/for-loop-while/cleanup-rvalue-during-if-and-while.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/for-loop-while/cleanup-rvalue-during-if-and-while.rs')
-rw-r--r-- | tests/ui/for-loop-while/cleanup-rvalue-during-if-and-while.rs | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/tests/ui/for-loop-while/cleanup-rvalue-during-if-and-while.rs b/tests/ui/for-loop-while/cleanup-rvalue-during-if-and-while.rs new file mode 100644 index 000000000..afc77355a --- /dev/null +++ b/tests/ui/for-loop-while/cleanup-rvalue-during-if-and-while.rs @@ -0,0 +1,41 @@ +// run-pass +// This test verifies that temporaries created for `while`'s and `if` +// conditions are dropped after the condition is evaluated. + +struct Temporary; + +static mut DROPPED: isize = 0; + +impl Drop for Temporary { + fn drop(&mut self) { + unsafe { DROPPED += 1; } + } +} + +impl Temporary { + fn do_stuff(&self) -> bool {true} +} + +fn borrow() -> Box<Temporary> { Box::new(Temporary) } + + +pub fn main() { + let mut i = 0; + + // This loop's condition + // should call `Temporary`'s + // `drop` 6 times. + while borrow().do_stuff() { + i += 1; + unsafe { assert_eq!(DROPPED, i) } + if i > 5 { + break; + } + } + + // This if condition should + // call it 1 time + if borrow().do_stuff() { + unsafe { assert_eq!(DROPPED, i + 1) } + } +} |