1import { Grid } from "../common/Grid";
 2import { Node } from "./Node";
 3import { NodeType } from "./NodeType";
 4
 5/**
 6 * Node that is a literal list of nodes, possibly other list nodes.
 7 */
 8export class ListNode extends Object implements Node {
 9  readonly type: NodeType = NodeType.List;
10  readonly grid: Grid<Node>;
11
12  constructor(grid?: Grid<Node>) {
13    super();
14    this.grid = grid ? grid : new Grid<Node>(0, 0);
15  }
16
17  isEmpty(): boolean {
18    return this.grid.isEmpty();
19  }
20
21  toString() {
22    return `{${this.grid
23      .raw()
24      .map((row) => row.map((node) => node.toString()).join(","))
25      .join(";")}}`;
26  }
27}