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108 lines
3.1 KiB
108 lines
3.1 KiB
11 months ago
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/**
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* @license
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* Cesium - https://github.com/CesiumGS/cesium
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* Version 1.99
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*
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* Copyright 2011-2022 Cesium Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Columbus View (Pat. Pend.)
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*
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* Portions licensed separately.
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* See https://github.com/CesiumGS/cesium/blob/main/LICENSE.md for full licensing details.
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*/
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define(['exports', './defaultValue-135942ca'], (function (exports, defaultValue) { 'use strict';
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/**
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* Merges two objects, copying their properties onto a new combined object. When two objects have the same
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* property, the value of the property on the first object is used. If either object is undefined,
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* it will be treated as an empty object.
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*
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* @example
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* const object1 = {
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* propOne : 1,
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* propTwo : {
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* value1 : 10
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* }
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* }
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* const object2 = {
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* propTwo : 2
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* }
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* const final = Cesium.combine(object1, object2);
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*
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* // final === {
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* // propOne : 1,
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* // propTwo : {
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* // value1 : 10
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* // }
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* // }
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*
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* @param {Object} [object1] The first object to merge.
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* @param {Object} [object2] The second object to merge.
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* @param {Boolean} [deep=false] Perform a recursive merge.
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* @returns {Object} The combined object containing all properties from both objects.
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*
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* @function
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*/
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function combine(object1, object2, deep) {
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deep = defaultValue.defaultValue(deep, false);
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const result = {};
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const object1Defined = defaultValue.defined(object1);
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const object2Defined = defaultValue.defined(object2);
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let property;
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let object1Value;
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let object2Value;
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if (object1Defined) {
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for (property in object1) {
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if (object1.hasOwnProperty(property)) {
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object1Value = object1[property];
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if (
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object2Defined &&
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deep &&
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typeof object1Value === "object" &&
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object2.hasOwnProperty(property)
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) {
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object2Value = object2[property];
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if (typeof object2Value === "object") {
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result[property] = combine(object1Value, object2Value, deep);
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} else {
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result[property] = object1Value;
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}
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} else {
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result[property] = object1Value;
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}
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}
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}
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}
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if (object2Defined) {
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for (property in object2) {
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if (
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object2.hasOwnProperty(property) &&
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!result.hasOwnProperty(property)
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) {
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object2Value = object2[property];
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result[property] = object2Value;
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}
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}
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}
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return result;
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}
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exports.combine = combine;
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}));
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