simple-squiggle

ArrayNode.js (5653B)

---

 import { isArrayNode, isNode } from '../../utils/is.js';
 import { map } from '../../utils/array.js';
 import { factory } from '../../utils/factory.js';
 var name = 'ArrayNode';
 var dependencies = ['Node'];
 export var createArrayNode = /* #__PURE__ */factory(name, dependencies, _ref => {
   var {
     Node
   } = _ref;
 
   /**
    * @constructor ArrayNode
    * @extends {Node}
    * Holds an 1-dimensional array with items
    * @param {Node[]} [items]   1 dimensional array with items
    */
   function ArrayNode(items) {
     if (!(this instanceof ArrayNode)) {
       throw new SyntaxError('Constructor must be called with the new operator');
     }
 
     this.items = items || []; // validate input
 
     if (!Array.isArray(this.items) || !this.items.every(isNode)) {
       throw new TypeError('Array containing Nodes expected');
     }
   }
 
   ArrayNode.prototype = new Node();
   ArrayNode.prototype.type = 'ArrayNode';
   ArrayNode.prototype.isArrayNode = 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: *)
    */
 
   ArrayNode.prototype._compile = function (math, argNames) {
     var evalItems = map(this.items, function (item) {
       return item._compile(math, argNames);
     });
     var asMatrix = math.config.matrix !== 'Array';
 
     if (asMatrix) {
       var matrix = math.matrix;
       return function evalArrayNode(scope, args, context) {
         return matrix(map(evalItems, function (evalItem) {
           return evalItem(scope, args, context);
         }));
       };
     } else {
       return function evalArrayNode(scope, args, context) {
         return map(evalItems, function (evalItem) {
           return evalItem(scope, args, context);
         });
       };
     }
   };
   /**
    * Execute a callback for each of the child nodes of this node
    * @param {function(child: Node, path: string, parent: Node)} callback
    */
 
 
   ArrayNode.prototype.forEach = function (callback) {
     for (var i = 0; i < this.items.length; i++) {
       var node = this.items[i];
       callback(node, 'items[' + i + ']', this);
     }
   };
   /**
    * Create a new ArrayNode having it's childs be the results of calling
    * the provided callback function for each of the childs of the original node.
    * @param {function(child: Node, path: string, parent: Node): Node} callback
    * @returns {ArrayNode} Returns a transformed copy of the node
    */
 
 
   ArrayNode.prototype.map = function (callback) {
     var items = [];
 
     for (var i = 0; i < this.items.length; i++) {
       items[i] = this._ifNode(callback(this.items[i], 'items[' + i + ']', this));
     }
 
     return new ArrayNode(items);
   };
   /**
    * Create a clone of this node, a shallow copy
    * @return {ArrayNode}
    */
 
 
   ArrayNode.prototype.clone = function () {
     return new ArrayNode(this.items.slice(0));
   };
   /**
    * Get string representation
    * @param {Object} options
    * @return {string} str
    * @override
    */
 
 
   ArrayNode.prototype._toString = function (options) {
     var items = this.items.map(function (node) {
       return node.toString(options);
     });
     return '[' + items.join(', ') + ']';
   };
   /**
    * Get a JSON representation of the node
    * @returns {Object}
    */
 
 
   ArrayNode.prototype.toJSON = function () {
     return {
       mathjs: 'ArrayNode',
       items: this.items
     };
   };
   /**
    * Instantiate an ArrayNode from its JSON representation
    * @param {Object} json  An object structured like
    *                       `{"mathjs": "ArrayNode", items: [...]}`,
    *                       where mathjs is optional
    * @returns {ArrayNode}
    */
 
 
   ArrayNode.fromJSON = function (json) {
     return new ArrayNode(json.items);
   };
   /**
    * Get HTML representation
    * @param {Object} options
    * @return {string} str
    * @override
    */
 
 
   ArrayNode.prototype.toHTML = function (options) {
     var items = this.items.map(function (node) {
       return node.toHTML(options);
     });
     return '<span class="math-parenthesis math-square-parenthesis">[</span>' + items.join('<span class="math-separator">,</span>') + '<span class="math-parenthesis math-square-parenthesis">]</span>';
   };
   /**
    * Get LaTeX representation
    * @param {Object} options
    * @return {string} str
    */
 
 
   ArrayNode.prototype._toTex = function (options) {
     function itemsToTex(items, nested) {
       var mixedItems = items.some(isArrayNode) && !items.every(isArrayNode);
       var itemsFormRow = nested || mixedItems;
       var itemSep = itemsFormRow ? '&' : '\\\\';
       var itemsTex = items.map(function (node) {
         if (node.items) {
           return itemsToTex(node.items, !nested);
         } else {
           return node.toTex(options);
         }
       }).join(itemSep);
       return mixedItems || !itemsFormRow || itemsFormRow && !nested ? '\\begin{bmatrix}' + itemsTex + '\\end{bmatrix}' : itemsTex;
     }
 
     return itemsToTex(this.items, false);
   };
 
   return ArrayNode;
 }, {
   isClass: true,
   isNode: true
 });