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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | 2x 2x 64x 64x 64x 64x 64x 64x 25x 22x 22x 21x 21x 21x 35x 35x 21x 25x 3x 3x 25x 64x 64x 64x 64x | import { type BatchTask } from "../batch";
import { on, type RemoveListener, send, size, type EventObject } from "../event";
/** When a value should be disposed */
export interface OnDisposeValue<V> extends BatchTask<EventObject<V>> {
readonly delete_: Set<V>;
}
export function onDisposeValue<V>(
this: { onDisposeValue_?: null | OnDisposeValue<V> },
fn: (value: V) => void,
): RemoveListener {
return on(
(this.onDisposeValue_ ??= {
delete_: new Set<V>(),
task_: () => {
if (this.onDisposeValue_ && size(this.onDisposeValue_)) {
const { delete_ } = this.onDisposeValue_;
if (delete_.size) {
const removedValues = [...delete_];
delete_.clear();
for (const value of removedValues) {
send(this.onDisposeValue_, value);
}
}
} else {
this.onDisposeValue_ = null;
}
},
}),
fn,
);
}
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