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Fixing a freeze in MapStore on several unsubscribes

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For some reason (I could not reproduce this in unit tests alas), the unsubscribe function
could be called several times in a row, leading to a complete map freeze.

Closes #1736
This commit is contained in:
David Négrier 2022-01-28 09:58:24 +01:00
parent 0d4befc850
commit e43c4cd5ae
1 changed files with 2 additions and 0 deletions
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2
front/src/Stores/Utils/MapStore.ts
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@ -96,6 +96,7 @@ export class MapStore<K, V> extends Map<K, V> implements Readable<Map<K, V>> {
const unsubscribe = storeByKey.subscribe((newMapValue) => {
if (unsubscribeDeepStore) {
unsubscribeDeepStore();
unsubscribeDeepStore = undefined;
}
if (newMapValue === undefined) {
set(undefined);
@ -115,6 +116,7 @@ export class MapStore<K, V> extends Map<K, V> implements Readable<Map<K, V>> {
unsubscribe();
if (unsubscribeDeepStore) {
unsubscribeDeepStore();
unsubscribeDeepStore = undefined;
}
};
});