fixed-merkle-tree/lib/BaseTree.d.ts

44 lines
1.7 KiB
TypeScript

import { Element, HashFunction, ProofPath } from './';
export declare class BaseTree {
levels: number;
protected _hashFn: HashFunction<Element>;
protected zeroElement: Element;
protected _zeros: Element[];
protected _layers: Array<Element[]>;
get capacity(): number;
get layers(): Array<Element[]>;
get zeros(): Element[];
get elements(): Element[];
get root(): Element;
/**
* Find an element in the tree
* @param elements elements of tree
* @param element An element to find
* @param comparator A function that checks leaf value equality
* @param fromIndex The index to start the search at. If the index is greater than or equal to the array's length, -1 is returned
* @returns {number} Index if element is found, otherwise -1
*/
static indexOf(elements: Element[], element: Element, fromIndex?: number, comparator?: <T>(arg0: T, arg1: T) => boolean): number;
/**
* Insert new element into the tree
* @param element Element to insert
*/
insert(element: Element): void;
bulkInsert(elements: Element[]): void;
/**
* Change an element in the tree
* @param {number} index Index of element to change
* @param element Updated element value
*/
update(index: number, element: Element): void;
/**
* Get merkle path to a leaf
* @param {number} index Leaf index to generate path for
* @returns {{pathElements: Object[], pathIndex: number[]}} An object containing adjacent elements and left-right index
*/
path(index: number): ProofPath;
protected _buildZeros(): void;
protected _processNodes(nodes: Element[], layerIndex: number): any[];
protected _processUpdate(index: number): void;
}