@uifabric/utilities/lib/customizations/mergeSettings.js

import { __assign } from "tslib";
/**
 * Merge new and old settings, giving priority to new settings.
 * New settings is optional in which case oldSettings is returned as-is.
 * @param oldSettings - Old settings to fall back to.
 * @param newSettings - New settings that will be merged over oldSettings.
 * @returns Merged settings.
 */
export function mergeSettings(oldSettings, newSettings) {
    if (oldSettings === void 0) { oldSettings = {}; }
    var mergeSettingsWith = _isSettingsFunction(newSettings) ? newSettings : _settingsMergeWith(newSettings);
    return mergeSettingsWith(oldSettings);
}
export function mergeScopedSettings(oldSettings, newSettings) {
    if (oldSettings === void 0) { oldSettings = {}; }
    var mergeSettingsWith = _isSettingsFunction(newSettings) ? newSettings : _scopedSettingsMergeWith(newSettings);
    return mergeSettingsWith(oldSettings);
}
function _isSettingsFunction(settings) {
    return typeof settings === 'function';
}
function _settingsMergeWith(newSettings) {
    return function (settings) { return (newSettings ? __assign(__assign({}, settings), newSettings) : settings); };
}
function _scopedSettingsMergeWith(scopedSettingsFromProps) {
    if (scopedSettingsFromProps === void 0) { scopedSettingsFromProps = {}; }
    return function (oldScopedSettings) {
        var newScopedSettings = __assign({}, oldScopedSettings);
        for (var scopeName in scopedSettingsFromProps) {
            if (scopedSettingsFromProps.hasOwnProperty(scopeName)) {
                newScopedSettings[scopeName] = __assign(__assign({}, oldScopedSettings[scopeName]), scopedSettingsFromProps[scopeName]);
            }
        }
        return newScopedSettings;
    };
}
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