jiangchengfeiyi-xiaochengxu/node_modules/mathjs/lib/cjs/expression/node/utils/assign.js
2025-01-02 11:13:50 +08:00

57 lines
1.9 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.assignFactory = assignFactory;
var _errorTransform = require("../../transform/utils/errorTransform.js");
var _customs = require("../../../utils/customs.js");
function assignFactory(_ref) {
let {
subset,
matrix
} = _ref;
/**
* Replace part of an object:
*
* - Assign a property to an object
* - Replace a part of a string
* - Replace a matrix subset
*
* @param {Object | Array | Matrix | string} object
* @param {Index} index
* @param {*} value
* @return {Object | Array | Matrix | string} Returns the original object
* except in case of a string
*/
// TODO: change assign to return the value instead of the object
return function assign(object, index, value) {
try {
if (Array.isArray(object)) {
const result = matrix(object).subset(index, value).valueOf();
// shallow copy all (updated) items into the original array
result.forEach((item, index) => {
object[index] = item;
});
return object;
} else if (object && typeof object.subset === 'function') {
// Matrix
return object.subset(index, value);
} else if (typeof object === 'string') {
// TODO: move setStringSubset into a separate util file, use that
return subset(object, index, value);
} else if (typeof object === 'object') {
if (!index.isObjectProperty()) {
throw TypeError('Cannot apply a numeric index as object property');
}
(0, _customs.setSafeProperty)(object, index.getObjectProperty(), value);
return object;
} else {
throw new TypeError('Cannot apply index: unsupported type of object');
}
} catch (err) {
throw (0, _errorTransform.errorTransform)(err);
}
};
}