bloomit/dist/encoding.js

Space efficient bloom filter based on the bloom-filters npm package.

'use strict';
var __values = (this && this.__values) || function(o) {
    var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
    if (m) return m.call(o);
    if (o && typeof o.length === "number") return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
    throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
var __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.int64ToUint8Array = exports.uint8ArrayToInt64 = exports.int32ToUint8Array = void 0;
var int32ToUint8Array = function (n) {
    var bytes = new Uint8Array(4);
    for (var index = 3; index >= 0; index -= 1) {
        bytes[index] = n & 0xff;
        n >>= 8;
    }
    return bytes;
};
exports.int32ToUint8Array = int32ToUint8Array;
var uint8ArrayToInt64 = function (byteArray) {
    var e_1, _a;
    var int64 = 0;
    try {
        for (var _b = __values(byteArray.entries()), _c = _b.next(); !_c.done; _c = _b.next()) {
            var _d = __read(_c.value, 2), index = _d[0], byte = _d[1];
            int64 += byte * Math.pow(2, (56 - index * 8));
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
        }
        finally { if (e_1) throw e_1.error; }
    }
    return int64;
};
exports.uint8ArrayToInt64 = uint8ArrayToInt64;
var int64ToUint8Array = function (n) {
    var part1 = exports.int32ToUint8Array(n / Math.pow(2, 32));
    var part2 = exports.int32ToUint8Array(n);
    var array = new Uint8Array(part1.length + part2.length);
    array.set(part1);
    array.set(part2, part1.length);
    return array;
};
exports.int64ToUint8Array = int64ToUint8Array;