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11 changes: 6 additions & 5 deletions packages/data/src/registry.js
Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,7 @@ function getStoreName( storeNameOrDescriptor ) {
export function createRegistry( storeConfigs = {}, parent = null ) {
const stores = {};
const emitter = createEmitter();
const listeningStores = new Set();
let listeningStores = null;

/**
* Global listener called for each store's update.
Expand Down Expand Up @@ -112,7 +112,7 @@ export function createRegistry( storeConfigs = {}, parent = null ) {
*/
function select( storeNameOrDescriptor ) {
const storeName = getStoreName( storeNameOrDescriptor );
listeningStores.add( storeName );
listeningStores?.add( storeName );
const store = stores[ storeName ];
if ( store ) {
return store.getSelectors();
Expand All @@ -122,11 +122,12 @@ export function createRegistry( storeConfigs = {}, parent = null ) {
}

function __unstableMarkListeningStores( callback, ref ) {
listeningStores.clear();
listeningStores = new Set();
try {
return callback.call( this );
} finally {
ref.current = Array.from( listeningStores );
listeningStores = null;
}
}

Expand All @@ -143,7 +144,7 @@ export function createRegistry( storeConfigs = {}, parent = null ) {
*/
function resolveSelect( storeNameOrDescriptor ) {
const storeName = getStoreName( storeNameOrDescriptor );
listeningStores.add( storeName );
listeningStores?.add( storeName );
const store = stores[ storeName ];
if ( store ) {
return store.getResolveSelectors();
Expand All @@ -165,7 +166,7 @@ export function createRegistry( storeConfigs = {}, parent = null ) {
*/
function suspendSelect( storeNameOrDescriptor ) {
const storeName = getStoreName( storeNameOrDescriptor );
listeningStores.add( storeName );
listeningStores?.add( storeName );
const store = stores[ storeName ];
if ( store ) {
return store.getSuspendSelectors();
Expand Down