mathjs
Version:
Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif
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JavaScript
"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.createObjectNode = void 0;
var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));
var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));
var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _customs = require("../../utils/customs.js");
var _factory = require("../../utils/factory.js");
var _is = require("../../utils/is.js");
var _object = require("../../utils/object.js");
var _string = require("../../utils/string.js");
function _callSuper(t, o, e) { return o = (0, _getPrototypeOf2["default"])(o), (0, _possibleConstructorReturn2["default"])(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], (0, _getPrototypeOf2["default"])(t).constructor) : o.apply(t, e)); }
function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
var name = 'ObjectNode';
var dependencies = ['Node'];
var createObjectNode = exports.createObjectNode = /* #__PURE__ */(0, _factory.factory)(name, dependencies, function (_ref) {
var Node = _ref.Node;
var ObjectNode = /*#__PURE__*/function (_Node) {
(0, _inherits2["default"])(ObjectNode, _Node);
/**
* @constructor ObjectNode
* @extends {Node}
* Holds an object with keys/values
* @param {Object.<string, Node>} [properties] object with key/value pairs
*/
function ObjectNode(properties) {
var _this;
(0, _classCallCheck2["default"])(this, ObjectNode);
_this = _callSuper(this, ObjectNode);
_this.properties = properties || {};
// validate input
if (properties) {
if (!((0, _typeof2["default"])(properties) === 'object') || !Object.keys(properties).every(function (key) {
return (0, _is.isNode)(properties[key]);
})) {
throw new TypeError('Object containing Nodes expected');
}
}
return _this;
}
(0, _createClass2["default"])(ObjectNode, [{
key: "type",
get: function get() {
return name;
}
}, {
key: "isObjectNode",
get: function get() {
return true;
}
/**
* Compile a node into a JavaScript function.
* This basically pre-calculates as much as possible and only leaves open
* calculations which depend on a dynamic scope with variables.
* @param {Object} math Math.js namespace with functions and constants.
* @param {Object} argNames An object with argument names as key and `true`
* as value. Used in the SymbolNode to optimize
* for arguments from user assigned functions
* (see FunctionAssignmentNode) or special symbols
* like `end` (see IndexNode).
* @return {function} Returns a function which can be called like:
* evalNode(scope: Object, args: Object, context: *)
*/
}, {
key: "_compile",
value: function _compile(math, argNames) {
var evalEntries = {};
for (var key in this.properties) {
if ((0, _object.hasOwnProperty)(this.properties, key)) {
// we stringify/parse the key here to resolve unicode characters,
// so you cannot create a key like {"co\\u006Estructor": null}
var stringifiedKey = (0, _string.stringify)(key);
var parsedKey = JSON.parse(stringifiedKey);
var prop = (0, _customs.getSafeProperty)(this.properties, key);
evalEntries[parsedKey] = prop._compile(math, argNames);
}
}
return function evalObjectNode(scope, args, context) {
var obj = {};
for (var _key in evalEntries) {
if ((0, _object.hasOwnProperty)(evalEntries, _key)) {
obj[_key] = evalEntries[_key](scope, args, context);
}
}
return obj;
};
}
/**
* Execute a callback for each of the child nodes of this node
* @param {function(child: Node, path: string, parent: Node)} callback
*/
}, {
key: "forEach",
value: function forEach(callback) {
for (var key in this.properties) {
if ((0, _object.hasOwnProperty)(this.properties, key)) {
callback(this.properties[key], 'properties[' + (0, _string.stringify)(key) + ']', this);
}
}
}
/**
* Create a new ObjectNode whose children are the results of calling
* the provided callback function for each child of the original node.
* @param {function(child: Node, path: string, parent: Node): Node} callback
* @returns {ObjectNode} Returns a transformed copy of the node
*/
}, {
key: "map",
value: function map(callback) {
var properties = {};
for (var key in this.properties) {
if ((0, _object.hasOwnProperty)(this.properties, key)) {
properties[key] = this._ifNode(callback(this.properties[key], 'properties[' + (0, _string.stringify)(key) + ']', this));
}
}
return new ObjectNode(properties);
}
/**
* Create a clone of this node, a shallow copy
* @return {ObjectNode}
*/
}, {
key: "clone",
value: function clone() {
var properties = {};
for (var key in this.properties) {
if ((0, _object.hasOwnProperty)(this.properties, key)) {
properties[key] = this.properties[key];
}
}
return new ObjectNode(properties);
}
/**
* Get string representation
* @param {Object} options
* @return {string} str
* @override
*/
}, {
key: "_toString",
value: function _toString(options) {
var entries = [];
for (var key in this.properties) {
if ((0, _object.hasOwnProperty)(this.properties, key)) {
entries.push((0, _string.stringify)(key) + ': ' + this.properties[key].toString(options));
}
}
return '{' + entries.join(', ') + '}';
}
/**
* Get a JSON representation of the node
* @returns {Object}
*/
}, {
key: "toJSON",
value: function toJSON() {
return {
mathjs: name,
properties: this.properties
};
}
/**
* Instantiate an OperatorNode from its JSON representation
* @param {Object} json An object structured like
* `{"mathjs": "ObjectNode", "properties": {...}}`,
* where mathjs is optional
* @returns {ObjectNode}
*/
}, {
key: "_toHTML",
value:
/**
* Get HTML representation
* @param {Object} options
* @return {string} str
* @override
*/
function _toHTML(options) {
var entries = [];
for (var key in this.properties) {
if ((0, _object.hasOwnProperty)(this.properties, key)) {
entries.push('<span class="math-symbol math-property">' + (0, _string.escape)(key) + '</span>' + '<span class="math-operator math-assignment-operator ' + 'math-property-assignment-operator math-binary-operator">' + ':</span>' + this.properties[key].toHTML(options));
}
}
return '<span class="math-parenthesis math-curly-parenthesis">{</span>' + entries.join('<span class="math-separator">,</span>') + '<span class="math-parenthesis math-curly-parenthesis">}</span>';
}
/**
* Get LaTeX representation
* @param {Object} options
* @return {string} str
*/
}, {
key: "_toTex",
value: function _toTex(options) {
var entries = [];
for (var key in this.properties) {
if ((0, _object.hasOwnProperty)(this.properties, key)) {
entries.push('\\mathbf{' + key + ':} & ' + this.properties[key].toTex(options) + '\\\\');
}
}
var tex = '\\left\\{\\begin{array}{ll}' + entries.join('\n') + '\\end{array}\\right\\}';
return tex;
}
}], [{
key: "fromJSON",
value: function fromJSON(json) {
return new ObjectNode(json.properties);
}
}]);
return ObjectNode;
}(Node);
(0, _defineProperty2["default"])(ObjectNode, "name", name);
return ObjectNode;
}, {
isClass: true,
isNode: true
});