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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/generator/resume-arg-size.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/generator/resume-arg-size.rs')
-rw-r--r-- | tests/ui/generator/resume-arg-size.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tests/ui/generator/resume-arg-size.rs b/tests/ui/generator/resume-arg-size.rs new file mode 100644 index 000000000..b93dc54f7 --- /dev/null +++ b/tests/ui/generator/resume-arg-size.rs @@ -0,0 +1,28 @@ +#![feature(generators)] + +// run-pass + +use std::mem::size_of_val; + +fn main() { + // Generator taking a `Copy`able resume arg. + let gen_copy = |mut x: usize| { + loop { + drop(x); + x = yield; + } + }; + + // Generator taking a non-`Copy` resume arg. + let gen_move = |mut x: Box<usize>| { + loop { + drop(x); + x = yield; + } + }; + + // Neither of these generators have the resume arg live across the `yield`, so they should be + // 1 Byte in size (only storing the discriminant) + assert_eq!(size_of_val(&gen_copy), 1); + assert_eq!(size_of_val(&gen_move), 1); +} |