@iden3/js-merkletree/dist/node/cjs/lib/utils/merkletree.js

javascript sparse merkle tree library

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.siblings2Bytes = exports.getPath = void 0;
// const siblingBytes = bs.slice(this.notEmpties.length + PROOF_FLAG_LEN);
const constants_1 = require("../../constants");
const bytes_1 = require("./bytes");
const getPath = (numLevels, k) => {
    const path = new Array(numLevels);
    for (let idx = 0; idx < numLevels; idx += 1) {
        path[idx] = (0, bytes_1.testBit)(k, idx);
    }
    return path;
};
exports.getPath = getPath;
const siblings2Bytes = (siblings) => {
    const siblingBytesBuff = new ArrayBuffer(constants_1.HASH_BYTES_LENGTH * siblings.length);
    const siblingBytes = new Uint8Array(siblingBytesBuff);
    siblings.forEach((v, i) => {
        siblingBytes.set(v.value, i * constants_1.HASH_BYTES_LENGTH);
    });
    return siblingBytes;
};
exports.siblings2Bytes = siblings2Bytes;