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17 changes: 8 additions & 9 deletions types/index.d.ts
Original file line number Diff line number Diff line change
Expand Up @@ -4,18 +4,20 @@

export = TreeModel;

declare class TreeModel {
constructor(config?: TreeModel.Config);
declare class TreeModel<Config extends TreeModel.Config = TreeModel.Config> {
constructor(config?: Config);

private config: TreeModel.Config;
private config: Config;

parse<T>(model: TreeModel.Model<T>): TreeModel.Node<T>;
parse<T extends {[Key in Config['childrenPropertyName'] extends string ? Config['childrenPropertyName'] : 'children']: T[] }>(model: T): TreeModel.Node<T>;
}

declare namespace TreeModel {
class Node<T> {
constructor(config: any, model: Model<T>);

constructor(config: any, model: T);
model: T;
children: Node<T>[];
parent: Node<T> | undefined;
isRoot(): boolean;
hasChildren(): boolean;
addChild(child: Node<T>): Node<T>;
Expand Down Expand Up @@ -44,7 +46,6 @@ declare namespace TreeModel {
*/
childrenPropertyName?: string;
modelComparatorFn?: ComparatorFunction;
[propName: string]: any;
}

interface Options {
Expand All @@ -55,6 +56,4 @@ declare namespace TreeModel {

type ComparatorFunction = (left: any, right: any) => boolean;
type NodeVisitorFunction<T> = (visitingNode: Node<T>) => boolean;

type Model<T> = T & { children?: Array<Model<T>> };
}