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Merge pull request #512 from camelid/unit-update

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Impl `Update` for unit type `()`
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Niko Matsakis 2024-07-22 09:27:09 +00:00 committed by GitHub
commit 5f35a3529d
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src/update.rs
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@ -337,6 +337,7 @@ macro_rules! tuple_impl {
let ($($t,)*) = new_value; let ($($t,)*) = new_value;
let ($($u,)*) = unsafe { &mut *old_pointer }; let ($($u,)*) = unsafe { &mut *old_pointer };
#[allow(unused_mut)]
let mut changed = false; let mut changed = false;
$( $(
unsafe { changed |= Update::maybe_update($u, $t); } unsafe { changed |= Update::maybe_update($u, $t); }
@ -348,6 +349,7 @@ macro_rules! tuple_impl {
} }
// Create implementations for tuples up to arity 12 // Create implementations for tuples up to arity 12
tuple_impl!(;);
tuple_impl!(A; a); tuple_impl!(A; a);
tuple_impl!(A, B; a, b); tuple_impl!(A, B; a, b);
tuple_impl!(A, B, C; a, b, c); tuple_impl!(A, B, C; a, b, c);