67 lines
1.9 KiB
Plaintext
67 lines
1.9 KiB
Plaintext
/**
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* @license React
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* use-sync-external-store-shim.production.js
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*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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"use strict";
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var React = require("react");
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function is(x, y) {
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return (x === y && (0 !== x || 1 / x === 1 / y)) || (x !== x && y !== y);
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}
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var objectIs = "function" === typeof Object.is ? Object.is : is,
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useState = React.useState,
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useEffect = React.useEffect,
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useLayoutEffect = React.useLayoutEffect,
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useDebugValue = React.useDebugValue;
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function useSyncExternalStore$2(subscribe, getSnapshot) {
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var value = getSnapshot(),
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_useState = useState({ inst: { value: value, getSnapshot: getSnapshot } }),
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inst = _useState[0].inst,
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forceUpdate = _useState[1];
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useLayoutEffect(
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function () {
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inst.value = value;
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inst.getSnapshot = getSnapshot;
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checkIfSnapshotChanged(inst) && forceUpdate({ inst: inst });
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},
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[subscribe, value, getSnapshot]
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);
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useEffect(
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function () {
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checkIfSnapshotChanged(inst) && forceUpdate({ inst: inst });
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return subscribe(function () {
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checkIfSnapshotChanged(inst) && forceUpdate({ inst: inst });
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});
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},
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[subscribe]
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);
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useDebugValue(value);
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return value;
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}
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function checkIfSnapshotChanged(inst) {
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var latestGetSnapshot = inst.getSnapshot;
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inst = inst.value;
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try {
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var nextValue = latestGetSnapshot();
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return !objectIs(inst, nextValue);
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} catch (error) {
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return !0;
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}
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}
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function useSyncExternalStore$1(subscribe, getSnapshot) {
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return getSnapshot();
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}
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var shim =
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"undefined" === typeof window ||
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"undefined" === typeof window.document ||
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"undefined" === typeof window.document.createElement
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? useSyncExternalStore$1
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: useSyncExternalStore$2;
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exports.useSyncExternalStore =
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void 0 !== React.useSyncExternalStore ? React.useSyncExternalStore : shim;
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