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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/structs-enums/struct-partial-move-1.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 '')
-rw-r--r-- | src/test/ui/structs-enums/struct-partial-move-1.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/test/ui/structs-enums/struct-partial-move-1.rs b/src/test/ui/structs-enums/struct-partial-move-1.rs new file mode 100644 index 000000000..c15701593 --- /dev/null +++ b/src/test/ui/structs-enums/struct-partial-move-1.rs @@ -0,0 +1,21 @@ +// run-pass +#[derive(PartialEq, Debug)] +pub struct Partial<T> { x: T, y: T } + +#[derive(PartialEq, Debug)] +struct S { val: isize } +impl S { fn new(v: isize) -> S { S { val: v } } } +impl Drop for S { fn drop(&mut self) { } } + +pub fn f<T, F>((b1, b2): (T, T), mut f: F) -> Partial<T> where F: FnMut(T) -> T { + let p = Partial { x: b1, y: b2 }; + + // Move of `p` is legal even though we are also moving `p.y`; the + // `..p` moves all fields *except* `p.y` in this context. + Partial { y: f(p.y), ..p } +} + +pub fn main() { + let p = f((S::new(3), S::new(4)), |S { val: z }| S::new(z+1)); + assert_eq!(p, Partial { x: S::new(3), y: S::new(5) }); +} |