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Fix logic error in dropping callback subscriptions

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Co-authored-by: Kay Simmons <kay@zed.dev>
This commit is contained in:
Max Brunsfeld 2023-01-05 17:30:39 -08:00
parent 378f0c32fe
commit fa620bf98f
1 changed files with 7 additions and 15 deletions
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22
crates/gpui/src/app/callback_collection.rs
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@ -1,10 +1,9 @@
use std::mem;
use std::sync::Arc;
use std::{hash::Hash, sync::Weak};
use parking_lot::Mutex;
use collections::{btree_map, BTreeMap, HashMap, HashSet};
use collections::{BTreeMap, HashMap, HashSet};
use crate::MutableAppContext;
@ -142,7 +141,7 @@ impl<K: Clone + Hash + Eq + Copy, F> CallbackCollection<K, F> {
pub fn gc(&mut self) {
let mut this = self.internal.lock();
for (key, id) in mem::take(&mut this.dropped_subscriptions) {
for (key, id) in std::mem::take(&mut this.dropped_subscriptions) {
if let Some(callbacks) = this.callbacks.get_mut(&key) {
callbacks.remove(&id);
}
@ -164,20 +163,13 @@ impl<K: Clone + Hash + Eq, F> Drop for Subscription<K, F> {
if let Some(mapping) = self.mapping.as_ref().and_then(|mapping| mapping.upgrade()) {
let mut mapping = mapping.lock();
if let Some(callbacks) = mapping.callbacks.get_mut(&self.key) {
match callbacks.entry(self.id) {
btree_map::Entry::Vacant(_) => {
mapping
.dropped_subscriptions
.insert((self.key.clone(), self.id));
}
btree_map::Entry::Occupied(entry) => {
entry.remove();
mapping
.dropped_subscriptions
.insert((self.key.clone(), self.id));
}
if callbacks.remove(&self.id).is_some() {
return;
}
}
mapping
.dropped_subscriptions
.insert((self.key.clone(), self.id));
}
}
}