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Implement DerefMut

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This commit is contained in:
Micha Reiser 2024-07-29 10:25:26 +02:00
parent 4995ce0ddc
commit 12e0741252
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2 changed files with 13 additions and 0 deletions
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9
src/database.rs
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@ -196,6 +196,15 @@ impl<U: UserData> std::ops::Deref for DatabaseImpl<U> {
} }
} }
impl<U: UserData> std::ops::DerefMut for DatabaseImpl<U> {
fn deref_mut(&mut self) -> &mut U {
self.zalsa_mut()
.user_data_mut()
.downcast_mut::<U>()
.unwrap()
}
}
impl<U: UserData + RefUnwindSafe> RefUnwindSafe for DatabaseImpl<U> {} impl<U: UserData + RefUnwindSafe> RefUnwindSafe for DatabaseImpl<U> {}
#[salsa_macros::db] #[salsa_macros::db]

4
src/zalsa.rs
View file

@ -179,6 +179,10 @@ impl Zalsa {
&*self.user_data &*self.user_data
} }
pub(crate) fn user_data_mut(&mut self) -> &mut (dyn Any + Send + Sync) {
&mut *self.user_data
}
/// Triggers a new revision. Invoked automatically when you call `zalsa_mut` /// Triggers a new revision. Invoked automatically when you call `zalsa_mut`
/// and so doesn't need to be called otherwise. /// and so doesn't need to be called otherwise.
pub(crate) fn new_revision(&mut self) -> Revision { pub(crate) fn new_revision(&mut self) -> Revision {