diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/close-over-big-then-small-data.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/close-over-big-then-small-data.rs')
-rw-r--r-- | src/test/ui/close-over-big-then-small-data.rs | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/test/ui/close-over-big-then-small-data.rs b/src/test/ui/close-over-big-then-small-data.rs new file mode 100644 index 000000000..429b21e8b --- /dev/null +++ b/src/test/ui/close-over-big-then-small-data.rs @@ -0,0 +1,39 @@ +// run-pass + +#![allow(dead_code)] +// If we use GEPi rather than GEP_tup_like when +// storing closure data (as we used to do), the u64 would +// overwrite the u16. + +struct Pair<A,B> { + a: A, b: B +} + +struct Invoker<A> { + a: A, + b: u16, +} + +trait Invokable<A> { + fn f(&self) -> (A, u16); +} + +impl<A:Clone> Invokable<A> for Invoker<A> { + fn f(&self) -> (A, u16) { + (self.a.clone(), self.b) + } +} + +fn f<A:Clone + 'static>(a: A, b: u16) -> Box<dyn Invokable<A>+'static> { + Box::new(Invoker { + a: a, + b: b, + }) as Box<dyn Invokable<A>+'static> +} + +pub fn main() { + let (a, b) = f(22_u64, 44u16).f(); + println!("a={} b={}", a, b); + assert_eq!(a, 22u64); + assert_eq!(b, 44u16); +} |