67 lines
2.0 KiB
JavaScript
67 lines
2.0 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', {
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value: true
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});
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exports.isImmutableList = isImmutableList;
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exports.isImmutableOrderedKeyed = isImmutableOrderedKeyed;
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exports.isImmutableOrderedSet = isImmutableOrderedSet;
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exports.isImmutableRecord = isImmutableRecord;
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exports.isImmutableUnorderedKeyed = isImmutableUnorderedKeyed;
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exports.isImmutableUnorderedSet = isImmutableUnorderedSet;
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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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*/
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// SENTINEL constants are from https://github.com/immutable-js/immutable-js/tree/main/src/predicates
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const IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';
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const IS_SET_SENTINEL = '@@__IMMUTABLE_SET__@@';
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const IS_LIST_SENTINEL = '@@__IMMUTABLE_LIST__@@';
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const IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';
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const IS_RECORD_SYMBOL = '@@__IMMUTABLE_RECORD__@@';
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function isObjectLiteral(source) {
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return source != null && typeof source === 'object' && !Array.isArray(source);
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}
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function isImmutableUnorderedKeyed(source) {
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return Boolean(
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source &&
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isObjectLiteral(source) &&
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source[IS_KEYED_SENTINEL] &&
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!source[IS_ORDERED_SENTINEL]
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);
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}
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function isImmutableUnorderedSet(source) {
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return Boolean(
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source &&
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isObjectLiteral(source) &&
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source[IS_SET_SENTINEL] &&
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!source[IS_ORDERED_SENTINEL]
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);
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}
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function isImmutableList(source) {
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return Boolean(source && isObjectLiteral(source) && source[IS_LIST_SENTINEL]);
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}
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function isImmutableOrderedKeyed(source) {
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return Boolean(
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source &&
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isObjectLiteral(source) &&
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source[IS_KEYED_SENTINEL] &&
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source[IS_ORDERED_SENTINEL]
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);
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}
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function isImmutableOrderedSet(source) {
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return Boolean(
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source &&
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isObjectLiteral(source) &&
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source[IS_SET_SENTINEL] &&
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source[IS_ORDERED_SENTINEL]
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);
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}
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function isImmutableRecord(source) {
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return Boolean(source && isObjectLiteral(source) && source[IS_RECORD_SYMBOL]);
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}
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