import type { EJSONOptions } from './extended_json';
import { isObjectLike } from './parser/utils';
import type { Timestamp } from './timestamp';
interface LongWASMHelpers {
/** Gets the high bits of the last operation performed */
get_high(this: void): number;
div_u(
this: void,
lowBits: number,
highBits: number,
lowBitsDivisor: number,
highBitsDivisor: number
): number;
div_s(
this: void,
lowBits: number,
highBits: number,
lowBitsDivisor: number,
highBitsDivisor: number
): number;
rem_u(
this: void,
lowBits: number,
highBits: number,
lowBitsDivisor: number,
highBitsDivisor: number
): number;
rem_s(
this: void,
lowBits: number,
highBits: number,
lowBitsDivisor: number,
highBitsDivisor: number
): number;
mul(
this: void,
lowBits: number,
highBits: number,
lowBitsMultiplier: number,
highBitsMultiplier: number
): number;
}
/**
* wasm optimizations, to do native i64 multiplication and divide
*/
let wasm: LongWASMHelpers | undefined = undefined;
/* We do not want to have to include DOM types just for this check */
// eslint-disable-next-line @typescript-eslint/no-explicit-any
declare const WebAssembly: any;
try {
wasm = new WebAssembly.Instance(
new WebAssembly.Module(
// prettier-ignore
new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0, 1, 13, 2, 96, 0, 1, 127, 96, 4, 127, 127, 127, 127, 1, 127, 3, 7, 6, 0, 1, 1, 1, 1, 1, 6, 6, 1, 127, 1, 65, 0, 11, 7, 50, 6, 3, 109, 117, 108, 0, 1, 5, 100, 105, 118, 95, 115, 0, 2, 5, 100, 105, 118, 95, 117, 0, 3, 5, 114, 101, 109, 95, 115, 0, 4, 5, 114, 101, 109, 95, 117, 0, 5, 8, 103, 101, 116, 95, 104, 105, 103, 104, 0, 0, 10, 191, 1, 6, 4, 0, 35, 0, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 126, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 127, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 128, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 129, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11, 36, 1, 1, 126, 32, 0, 173, 32, 1, 173, 66, 32, 134, 132, 32, 2, 173, 32, 3, 173, 66, 32, 134, 132, 130, 34, 4, 66, 32, 135, 167, 36, 0, 32, 4, 167, 11])
),
{}
).exports as unknown as LongWASMHelpers;
} catch {
// no wasm support
}
const TWO_PWR_16_DBL = 1 << 16;
const TWO_PWR_24_DBL = 1 << 24;
const TWO_PWR_32_DBL = TWO_PWR_16_DBL * TWO_PWR_16_DBL;
const TWO_PWR_64_DBL = TWO_PWR_32_DBL * TWO_PWR_32_DBL;
const TWO_PWR_63_DBL = TWO_PWR_64_DBL / 2;
/** A cache of the Long representations of small integer values. */
const INT_CACHE: { [key: number]: Long } = {};
/** A cache of the Long representations of small unsigned integer values. */
const UINT_CACHE: { [key: number]: Long } = {};
/** @public */
export interface LongExtended {
$numberLong: string;
}
/**
* A class representing a 64-bit integer
* @public
* @category BSONType
* @remarks
* The internal representation of a long is the two given signed, 32-bit values.
* We use 32-bit pieces because these are the size of integers on which
* Javascript performs bit-operations. For operations like addition and
* multiplication, we split each number into 16 bit pieces, which can easily be
* multiplied within Javascript's floating-point representation without overflow
* or change in sign.
* In the algorithms below, we frequently reduce the negative case to the
* positive case by negating the input(s) and then post-processing the result.
* Note that we must ALWAYS check specially whether those values are MIN_VALUE
* (-2^63) because -MIN_VALUE == MIN_VALUE (since 2^63 cannot be represented as
* a positive number, it overflows back into a negative). Not handling this
* case would often result in infinite recursion.
* Common constant values ZERO, ONE, NEG_ONE, etc. are found as static properties on this class.
*/
export class Long {
_bsontype!: 'Long';
/** An indicator used to reliably determine if an object is a Long or not. */
__isLong__!: true;
/**
* The high 32 bits as a signed value.
*/
high!: number;
/**
* The low 32 bits as a signed value.
*/
low!: number;
/**
* Whether unsigned or not.
*/
unsigned!: boolean;
/**
* Constructs a 64 bit two's-complement integer, given its low and high 32 bit values as *signed* integers.
* See the from* functions below for more convenient ways of constructing Longs.
*
* Acceptable signatures are:
* - Long(low, high, unsigned?)
* - Long(bigint, unsigned?)
* - Long(string, unsigned?)
*
* @param low - The low (signed) 32 bits of the long
* @param high - The high (signed) 32 bits of the long
* @param unsigned - Whether unsigned or not, defaults to signed
*/
constructor(low: number | bigint | string = 0, high?: number | boolean, unsigned?: boolean) {
if (!(this instanceof Long)) return new Long(low, high, unsigned);
if (typeof low === 'bigint') {
Object.assign(this, Long.fromBigInt(low, !!high));
} else if (typeof low === 'string') {
Object.assign(this, Long.fromString(low, !!high));
} else {
this.low = low | 0;
this.high = (high as number) | 0;
this.unsigned = !!unsigned;
}
Object.defineProperty(this, '__isLong__', {
value: true,
configurable: false,
writable: false,
enumerable: false
});
}
static TWO_PWR_24 = Long.fromInt(TWO_PWR_24_DBL);
/** Maximum unsigned value. */
static MAX_UNSIGNED_VALUE = Long.fromBits(0xffffffff | 0, 0xffffffff | 0, true);
/** Signed zero */
static ZERO = Long.fromInt(0);
/** Unsigned zero. */
static UZERO = Long.fromInt(0, true);
/** Signed one. */
static ONE = Long.fromInt(1);
/** Unsigned one. */
static UONE = Long.fromInt(1, true);
/** Signed negative one. */
static NEG_ONE = Long.fromInt(-1);
/** Maximum signed value. */
static MAX_VALUE = Long.fromBits(0xffffffff | 0, 0x7fffffff | 0, false);
/** Minimum signed value. */
static MIN_VALUE = Long.fromBits(0, 0x80000000 | 0, false);
/**
* Returns a Long representing the 64 bit integer that comes by concatenating the given low and high bits.
* Each is assumed to use 32 bits.
* @param lowBits - The low 32 bits
* @param highBits - The high 32 bits
* @param unsigned - Whether unsigned or not, defaults to signed
* @returns The corresponding Long value
*/
static fromBits(lowBits: number, highBits: number, unsigned?: boolean): Long {
return new Long(lowBits, highBits, unsigned);
}
/**
* Returns a Long representing the given 32 bit integer value.
* @param value - The 32 bit integer in question
* @param unsigned - Whether unsigned or not, defaults to signed
* @returns The corresponding Long value
*/
static fromInt(value: number, unsigned?: boolean): Long {
let obj, cachedObj, cache;
if (unsigned) {
value >>>= 0;
if ((cache = 0 <= value && value < 256)) {
cachedObj = UINT_CACHE[value];
if (cachedObj) return cachedObj;
}
obj = Long.fromBits(value, (value | 0) < 0 ? -1 : 0, true);
if (cache) UINT_CACHE[value] = obj;
return obj;
} else {
value |= 0;
if ((cache = -128 <= value && value < 128)) {
cachedObj = INT_CACHE[value];
if (cachedObj) return cachedObj;
}
obj = Long.fromBits(value, value < 0 ? -1 : 0, false);
if (cache) INT_CACHE[value] = obj;
return obj;
}
}
/**
* Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned.
* @param value - The number in question
* @param unsigned - Whether unsigned or not, defaults to signed
* @returns The corresponding Long value
*/
static fromNumber(value: number, unsigned?: boolean): Long {
if (isNaN(value)) return unsigned ? Long.UZERO : Long.ZERO;
if (unsigned) {
if (value < 0) return Long.UZERO;
if (value >= TWO_PWR_64_DBL) return Long.MAX_UNSIGNED_VALUE;
} else {
if (value <= -TWO_PWR_63_DBL) return Long.MIN_VALUE;
if (value + 1 >= TWO_PWR_63_DBL) return Long.MAX_VALUE;
}
if (value < 0) return Long.fromNumber(-value, unsigned).neg();
return Long.fromBits(value % TWO_PWR_32_DBL | 0, (value / TWO_PWR_32_DBL) | 0, unsigned);
}
/**
* Returns a Long representing the given value, provided that it is a finite number. Otherwise, zero is returned.
* @param value - The number in question
* @param unsigned - Whether unsigned or not, defaults to signed
* @returns The corresponding Long value
*/
static fromBigInt(value: bigint, unsigned?: boolean): Long {
return Long.fromString(value.toString(), unsigned);
}
/**
* Returns a Long representation of the given string, written using the specified radix.
* @param str - The textual representation of the Long
* @param unsigned - Whether unsigned or not, defaults to signed
* @param radix - The radix in which the text is written (2-36), defaults to 10
* @returns The corresponding Long value
*/
static fromString(str: string, unsigned?: boolean, radix?: number): Long {
if (str.length === 0) throw Error('empty string');
if (str === 'NaN' || str === 'Infinity' || str === '+Infinity' || str === '-Infinity')
return Long.ZERO;
if (typeof unsigned === 'number') {
// For goog.math.long compatibility
(radix = unsigned), (unsigned = false);
} else {
unsigned = !!unsigned;
}
radix = radix || 10;
if (radix < 2 || 36 < radix) throw RangeError('radix');
let p;
if ((p = str.indexOf('-')) > 0) throw Error('interior hyphen');
else if (p === 0) {
return Long.fromString(str.substring(1), unsigned, radix).neg();
}
// Do several (8) digits each time through the loop, so as to
// minimize the calls to the very expensive emulated div.
const radixToPower = Long.fromNumber(Math.pow(radix, 8));
let result = Long.ZERO;
for (let i = 0; i < str.length; i += 8) {
const size = Math.min(8, str.length - i),
value = parseInt(str.substring(i, i + size), radix);
if (size < 8) {
const power = Long.fromNumber(Math.pow(radix, size));
result = result.mul(power).add(Long.fromNumber(value));
} else {
result = result.mul(radixToPower);
result = result.add(Long.fromNumber(value));
}
}
result.unsigned = unsigned;
return result;
}
/**
* Creates a Long from its byte representation.
* @param bytes - Byte representation
* @param unsigned - Whether unsigned or not, defaults to signed
* @param le - Whether little or big endian, defaults to big endian
* @returns The corresponding Long value
*/
static fromBytes(bytes: number[], unsigned?: boolean, le?: boolean): Long {
return le ? Long.fromBytesLE(bytes, unsigned) : Long.fromBytesBE(bytes, unsigned);
}
/**
* Creates a Long from its little endian byte representation.
* @param bytes - Little endian byte representation
* @param unsigned - Whether unsigned or not, defaults to signed
* @returns The corresponding Long value
*/
static fromBytesLE(bytes: number[], unsigned?: boolean): Long {
return new Long(
bytes[0] | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24),
bytes[4] | (bytes[5] << 8) | (bytes[6] << 16) | (bytes[7] << 24),
unsigned
);
}
/**
* Creates a Long from its big endian byte representation.
* @param bytes - Big endian byte representation
* @param unsigned - Whether unsigned or not, defaults to signed
* @returns The corresponding Long value
*/
static fromBytesBE(bytes: number[], unsigned?: boolean): Long {
return new Long(
(bytes[4] << 24) | (bytes[5] << 16) | (bytes[6] << 8) | bytes[7],
(bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3],
unsigned
);
}
/**
* Tests if the specified object is a Long.
*/
static isLong(value: unknown): value is Long {
return isObjectLike(value) && value['__isLong__'] === true;
}
/**
* Converts the specified value to a Long.
* @param unsigned - Whether unsigned or not, defaults to signed
*/
static fromValue(
val: number | string | { low: number; high: number; unsigned?: boolean },
unsigned?: boolean
): Long {
if (typeof val === 'number') return Long.fromNumber(val, unsigned);
if (typeof val === 'string') return Long.fromString(val, unsigned);
// Throws for non-objects, converts non-instanceof Long:
return Long.fromBits(
val.low,
val.high,
typeof unsigned === 'boolean' ? unsigned : val.unsigned
);
}
/** Returns the sum of this and the specified Long. */
add(addend: string | number | Long | Timestamp): Long {
if (!Long.isLong(addend)) addend = Long.fromValue(addend);
// Divide each number into 4 chunks of 16 bits, and then sum the chunks.
const a48 = this.high >>> 16;
const a32 = this.high & 0xffff;
const a16 = this.low >>> 16;
const a00 = this.low & 0xffff;
const b48 = addend.high >>> 16;
const b32 = addend.high & 0xffff;
const b16 = addend.low >>> 16;
const b00 = addend.low & 0xffff;
let c48 = 0,
c32 = 0,
c16 = 0,
c00 = 0;
c00 += a00 + b00;
c16 += c00 >>> 16;
c00 &= 0xffff;
c16 += a16 + b16;
c32 += c16 >>> 16;
c16 &= 0xffff;
c32 += a32 + b32;
c48 += c32 >>> 16;
c32 &= 0xffff;
c48 += a48 + b48;
c48 &= 0xffff;
return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
}
/**
* Returns the sum of this and the specified Long.
* @returns Sum
*/
and(other: string | number | Long | Timestamp): Long {
if (!Long.isLong(other)) other = Long.fromValue(other);
return Long.fromBits(this.low & other.low, this.high & other.high, this.unsigned);
}
/**
* Compares this Long's value with the specified's.
* @returns 0 if they are the same, 1 if the this is greater and -1 if the given one is greater
*/
compare(other: string | number | Long | Timestamp): 0 | 1 | -1 {
if (!Long.isLong(other)) other = Long.fromValue(other);
if (this.eq(other)) return 0;
const thisNeg = this.isNegative(),
otherNeg = other.isNegative();
if (thisNeg && !otherNeg) return -1;
if (!thisNeg && otherNeg) return 1;
// At this point the sign bits are the same
if (!this.unsigned) return this.sub(other).isNegative() ? -1 : 1;
// Both are positive if at least one is unsigned
return other.high >>> 0 > this.high >>> 0 ||
(other.high === this.high && other.low >>> 0 > this.low >>> 0)
? -1
: 1;
}
/** This is an alias of {@link Long.compare} */
comp(other: string | number | Long | Timestamp): 0 | 1 | -1 {
return this.compare(other);
}
/**
* Returns this Long divided by the specified. The result is signed if this Long is signed or unsigned if this Long is unsigned.
* @returns Quotient
*/
divide(divisor: string | number | Long | Timestamp): Long {
if (!Long.isLong(divisor)) divisor = Long.fromValue(divisor);
if (divisor.isZero()) throw Error('division by zero');
// use wasm support if present
if (wasm) {
// guard against signed division overflow: the largest
// negative number / -1 would be 1 larger than the largest
// positive number, due to two's complement.
if (
!this.unsigned &&
this.high === -0x80000000 &&
divisor.low === -1 &&
divisor.high === -1
) {
// be consistent with non-wasm code path
return this;
}
const low = (this.unsigned ? wasm.div_u : wasm.div_s)(
this.low,
this.high,
divisor.low,
divisor.high
);
return Long.fromBits(low, wasm.get_high(), this.unsigned);
}
if (this.isZero()) return this.unsigned ? Long.UZERO : Long.ZERO;
let approx, rem, res;
if (!this.unsigned) {
// This section is only relevant for signed longs and is derived from the
// closure library as a whole.
if (this.eq(Long.MIN_VALUE)) {
if (divisor.eq(Long.ONE) || divisor.eq(Long.NEG_ONE)) return Long.MIN_VALUE;
// recall that -MIN_VALUE == MIN_VALUE
else if (divisor.eq(Long.MIN_VALUE)) return Long.ONE;
else {
// At this point, we have |other| >= 2, so |this/other| < |MIN_VALUE|.
const halfThis = this.shr(1);
approx = halfThis.div(divisor).shl(1);
if (approx.eq(Long.ZERO)) {
return divisor.isNegative() ? Long.ONE : Long.NEG_ONE;
} else {
rem = this.sub(divisor.mul(approx));
res = approx.add(rem.div(divisor));
return res;
}
}
} else if (divisor.eq(Long.MIN_VALUE)) return this.unsigned ? Long.UZERO : Long.ZERO;
if (this.isNegative()) {
if (divisor.isNegative()) return this.neg().div(divisor.neg());
return this.neg().div(divisor).neg();
} else if (divisor.isNegative()) return this.div(divisor.neg()).neg();
res = Long.ZERO;
} else {
// The algorithm below has not been made for unsigned longs. It's therefore
// required to take special care of the MSB prior to running it.
if (!divisor.unsigned) divisor = divisor.toUnsigned();
if (divisor.gt(this)) return Long.UZERO;
if (divisor.gt(this.shru(1)))
// 15 >>> 1 = 7 ; with divisor = 8 ; true
return Long.UONE;
res = Long.UZERO;
}
// Repeat the following until the remainder is less than other: find a
// floating-point that approximates remainder / other *from below*, add this
// into the result, and subtract it from the remainder. It is critical that
// the approximate value is less than or equal to the real value so that the
// remainder never becomes negative.
// eslint-disable-next-line @typescript-eslint/no-this-alias
rem = this;
while (rem.gte(divisor)) {
// Approximate the result of division. This may be a little greater or
// smaller than the actual value.
approx = Math.max(1, Math.floor(rem.toNumber() / divisor.toNumber()));
// We will tweak the approximate result by changing it in the 48-th digit or
// the smallest non-fractional digit, whichever is larger.
const log2 = Math.ceil(Math.log(approx) / Math.LN2);
const delta = log2 <= 48 ? 1 : Math.pow(2, log2 - 48);
// Decrease the approximation until it is smaller than the remainder. Note
// that if it is too large, the product overflows and is negative.
let approxRes = Long.fromNumber(approx);
let approxRem = approxRes.mul(divisor);
while (approxRem.isNegative() || approxRem.gt(rem)) {
approx -= delta;
approxRes = Long.fromNumber(approx, this.unsigned);
approxRem = approxRes.mul(divisor);
}
// We know the answer can't be zero... and actually, zero would cause
// infinite recursion since we would make no progress.
if (approxRes.isZero()) approxRes = Long.ONE;
res = res.add(approxRes);
rem = rem.sub(approxRem);
}
return res;
}
/**This is an alias of {@link Long.divide} */
div(divisor: string | number | Long | Timestamp): Long {
return this.divide(divisor);
}
/**
* Tests if this Long's value equals the specified's.
* @param other - Other value
*/
equals(other: string | number | Long | Timestamp): boolean {
if (!Long.isLong(other)) other = Long.fromValue(other);
if (this.unsigned !== other.unsigned && this.high >>> 31 === 1 && other.high >>> 31 === 1)
return false;
return this.high === other.high && this.low === other.low;
}
/** This is an alias of {@link Long.equals} */
eq(other: string | number | Long | Timestamp): boolean {
return this.equals(other);
}
/** Gets the high 32 bits as a signed integer. */
getHighBits(): number {
return this.high;
}
/** Gets the high 32 bits as an unsigned integer. */
getHighBitsUnsigned(): number {
return this.high >>> 0;
}
/** Gets the low 32 bits as a signed integer. */
getLowBits(): number {
return this.low;
}
/** Gets the low 32 bits as an unsigned integer. */
getLowBitsUnsigned(): number {
return this.low >>> 0;
}
/** Gets the number of bits needed to represent the absolute value of this Long. */
getNumBitsAbs(): number {
if (this.isNegative()) {
// Unsigned Longs are never negative
return this.eq(Long.MIN_VALUE) ? 64 : this.neg().getNumBitsAbs();
}
const val = this.high !== 0 ? this.high : this.low;
let bit: number;
for (bit = 31; bit > 0; bit--) if ((val & (1 << bit)) !== 0) break;
return this.high !== 0 ? bit + 33 : bit + 1;
}
/** Tests if this Long's value is greater than the specified's. */
greaterThan(other: string | number | Long | Timestamp): boolean {
return this.comp(other) > 0;
}
/** This is an alias of {@link Long.greaterThan} */
gt(other: string | number | Long | Timestamp): boolean {
return this.greaterThan(other);
}
/** Tests if this Long's value is greater than or equal the specified's. */
greaterThanOrEqual(other: string | number | Long | Timestamp): boolean {
return this.comp(other) >= 0;
}
/** This is an alias of {@link Long.greaterThanOrEqual} */
gte(other: string | number | Long | Timestamp): boolean {
return this.greaterThanOrEqual(other);
}
/** This is an alias of {@link Long.greaterThanOrEqual} */
ge(other: string | number | Long | Timestamp): boolean {
return this.greaterThanOrEqual(other);
}
/** Tests if this Long's value is even. */
isEven(): boolean {
return (this.low & 1) === 0;
}
/** Tests if this Long's value is negative. */
isNegative(): boolean {
return !this.unsigned && this.high < 0;
}
/** Tests if this Long's value is odd. */
isOdd(): boolean {
return (this.low & 1) === 1;
}
/** Tests if this Long's value is positive. */
isPositive(): boolean {
return this.unsigned || this.high >= 0;
}
/** Tests if this Long's value equals zero. */
isZero(): boolean {
return this.high === 0 && this.low === 0;
}
/** Tests if this Long's value is less than the specified's. */
lessThan(other: string | number | Long | Timestamp): boolean {
return this.comp(other) < 0;
}
/** This is an alias of {@link Long#lessThan}. */
lt(other: string | number | Long | Timestamp): boolean {
return this.lessThan(other);
}
/** Tests if this Long's value is less than or equal the specified's. */
lessThanOrEqual(other: string | number | Long | Timestamp): boolean {
return this.comp(other) <= 0;
}
/** This is an alias of {@link Long.lessThanOrEqual} */
lte(other: string | number | Long | Timestamp): boolean {
return this.lessThanOrEqual(other);
}
/** Returns this Long modulo the specified. */
modulo(divisor: string | number | Long | Timestamp): Long {
if (!Long.isLong(divisor)) divisor = Long.fromValue(divisor);
// use wasm support if present
if (wasm) {
const low = (this.unsigned ? wasm.rem_u : wasm.rem_s)(
this.low,
this.high,
divisor.low,
divisor.high
);
return Long.fromBits(low, wasm.get_high(), this.unsigned);
}
return this.sub(this.div(divisor).mul(divisor));
}
/** This is an alias of {@link Long.modulo} */
mod(divisor: string | number | Long | Timestamp): Long {
return this.modulo(divisor);
}
/** This is an alias of {@link Long.modulo} */
rem(divisor: string | number | Long | Timestamp): Long {
return this.modulo(divisor);
}
/**
* Returns the product of this and the specified Long.
* @param multiplier - Multiplier
* @returns Product
*/
multiply(multiplier: string | number | Long | Timestamp): Long {
if (this.isZero()) return Long.ZERO;
if (!Long.isLong(multiplier)) multiplier = Long.fromValue(multiplier);
// use wasm support if present
if (wasm) {
const low = wasm.mul(this.low, this.high, multiplier.low, multiplier.high);
return Long.fromBits(low, wasm.get_high(), this.unsigned);
}
if (multiplier.isZero()) return Long.ZERO;
if (this.eq(Long.MIN_VALUE)) return multiplier.isOdd() ? Long.MIN_VALUE : Long.ZERO;
if (multiplier.eq(Long.MIN_VALUE)) return this.isOdd() ? Long.MIN_VALUE : Long.ZERO;
if (this.isNegative()) {
if (multiplier.isNegative()) return this.neg().mul(multiplier.neg());
else return this.neg().mul(multiplier).neg();
} else if (multiplier.isNegative()) return this.mul(multiplier.neg()).neg();
// If both longs are small, use float multiplication
if (this.lt(Long.TWO_PWR_24) && multiplier.lt(Long.TWO_PWR_24))
return Long.fromNumber(this.toNumber() * multiplier.toNumber(), this.unsigned);
// Divide each long into 4 chunks of 16 bits, and then add up 4x4 products.
// We can skip products that would overflow.
const a48 = this.high >>> 16;
const a32 = this.high & 0xffff;
const a16 = this.low >>> 16;
const a00 = this.low & 0xffff;
const b48 = multiplier.high >>> 16;
const b32 = multiplier.high & 0xffff;
const b16 = multiplier.low >>> 16;
const b00 = multiplier.low & 0xffff;
let c48 = 0,
c32 = 0,
c16 = 0,
c00 = 0;
c00 += a00 * b00;
c16 += c00 >>> 16;
c00 &= 0xffff;
c16 += a16 * b00;
c32 += c16 >>> 16;
c16 &= 0xffff;
c16 += a00 * b16;
c32 += c16 >>> 16;
c16 &= 0xffff;
c32 += a32 * b00;
c48 += c32 >>> 16;
c32 &= 0xffff;
c32 += a16 * b16;
c48 += c32 >>> 16;
c32 &= 0xffff;
c32 += a00 * b32;
c48 += c32 >>> 16;
c32 &= 0xffff;
c48 += a48 * b00 + a32 * b16 + a16 * b32 + a00 * b48;
c48 &= 0xffff;
return Long.fromBits((c16 << 16) | c00, (c48 << 16) | c32, this.unsigned);
}
/** This is an alias of {@link Long.multiply} */
mul(multiplier: string | number | Long | Timestamp): Long {
return this.multiply(multiplier);
}
/** Returns the Negation of this Long's value. */
negate(): Long {
if (!this.unsigned && this.eq(Long.MIN_VALUE)) return Long.MIN_VALUE;
return this.not().add(Long.ONE);
}
/** This is an alias of {@link Long.negate} */
neg(): Long {
return this.negate();
}
/** Returns the bitwise NOT of this Long. */
not(): Long {
return Long.fromBits(~this.low, ~this.high, this.unsigned);
}
/** Tests if this Long's value differs from the specified's. */
notEquals(other: string | number | Long | Timestamp): boolean {
return !this.equals(other);
}
/** This is an alias of {@link Long.notEquals} */
neq(other: string | number | Long | Timestamp): boolean {
return this.notEquals(other);
}
/** This is an alias of {@link Long.notEquals} */
ne(other: string | number | Long | Timestamp): boolean {
return this.notEquals(other);
}
/**
* Returns the bitwise OR of this Long and the specified.
*/
or(other: number | string | Long): Long {
if (!Long.isLong(other)) other = Long.fromValue(other);
return Long.fromBits(this.low | other.low, this.high | other.high, this.unsigned);
}
/**
* Returns this Long with bits shifted to the left by the given amount.
* @param numBits - Number of bits
* @returns Shifted Long
*/
shiftLeft(numBits: number | Long): Long {
if (Long.isLong(numBits)) numBits = numBits.toInt();
if ((numBits &= 63) === 0) return this;
else if (numBits < 32)
return Long.fromBits(
this.low << numBits,
(this.high << numBits) | (this.low >>> (32 - numBits)),
this.unsigned
);
else return Long.fromBits(0, this.low << (numBits - 32), this.unsigned);
}
/** This is an alias of {@link Long.shiftLeft} */
shl(numBits: number | Long): Long {
return this.shiftLeft(numBits);
}
/**
* Returns this Long with bits arithmetically shifted to the right by the given amount.
* @param numBits - Number of bits
* @returns Shifted Long
*/
shiftRight(numBits: number | Long): Long {
if (Long.isLong(numBits)) numBits = numBits.toInt();
if ((numBits &= 63) === 0) return this;
else if (numBits < 32)
return Long.fromBits(
(this.low >>> numBits) | (this.high << (32 - numBits)),
this.high >> numBits,
this.unsigned
);
else return Long.fromBits(this.high >> (numBits - 32), this.high >= 0 ? 0 : -1, this.unsigned);
}
/** This is an alias of {@link Long.shiftRight} */
shr(numBits: number | Long): Long {
return this.shiftRight(numBits);
}
/**
* Returns this Long with bits logically shifted to the right by the given amount.
* @param numBits - Number of bits
* @returns Shifted Long
*/
shiftRightUnsigned(numBits: Long | number): Long {
if (Long.isLong(numBits)) numBits = numBits.toInt();
numBits &= 63;
if (numBits === 0) return this;
else {
const high = this.high;
if (numBits < 32) {
const low = this.low;
return Long.fromBits(
(low >>> numBits) | (high << (32 - numBits)),
high >>> numBits,
this.unsigned
);
} else if (numBits === 32) return Long.fromBits(high, 0, this.unsigned);
else return Long.fromBits(high >>> (numBits - 32), 0, this.unsigned);
}
}
/** This is an alias of {@link Long.shiftRightUnsigned} */
shr_u(numBits: number | Long): Long {
return this.shiftRightUnsigned(numBits);
}
/** This is an alias of {@link Long.shiftRightUnsigned} */
shru(numBits: number | Long): Long {
return this.shiftRightUnsigned(numBits);
}
/**
* Returns the difference of this and the specified Long.
* @param subtrahend - Subtrahend
* @returns Difference
*/
subtract(subtrahend: string | number | Long | Timestamp): Long {
if (!Long.isLong(subtrahend)) subtrahend = Long.fromValue(subtrahend);
return this.add(subtrahend.neg());
}
/** This is an alias of {@link Long.subtract} */
sub(subtrahend: string | number | Long | Timestamp): Long {
return this.subtract(subtrahend);
}
/** Converts the Long to a 32 bit integer, assuming it is a 32 bit integer. */
toInt(): number {
return this.unsigned ? this.low >>> 0 : this.low;
}
/** Converts the Long to a the nearest floating-point representation of this value (double, 53 bit mantissa). */
toNumber(): number {
if (this.unsigned) return (this.high >>> 0) * TWO_PWR_32_DBL + (this.low >>> 0);
return this.high * TWO_PWR_32_DBL + (this.low >>> 0);
}
/** Converts the Long to a BigInt (arbitrary precision). */
toBigInt(): bigint {
return BigInt(this.toString());
}
/**
* Converts this Long to its byte representation.
* @param le - Whether little or big endian, defaults to big endian
* @returns Byte representation
*/
toBytes(le?: boolean): number[] {
return le ? this.toBytesLE() : this.toBytesBE();
}
/**
* Converts this Long to its little endian byte representation.
* @returns Little endian byte representation
*/
toBytesLE(): number[] {
const hi = this.high,
lo = this.low;
return [
lo & 0xff,
(lo >>> 8) & 0xff,
(lo >>> 16) & 0xff,
lo >>> 24,
hi & 0xff,
(hi >>> 8) & 0xff,
(hi >>> 16) & 0xff,
hi >>> 24
];
}
/**
* Converts this Long to its big endian byte representation.
* @returns Big endian byte representation
*/
toBytesBE(): number[] {
const hi = this.high,
lo = this.low;
return [
hi >>> 24,
(hi >>> 16) & 0xff,
(hi >>> 8) & 0xff,
hi & 0xff,
lo >>> 24,
(lo >>> 16) & 0xff,
(lo >>> 8) & 0xff,
lo & 0xff
];
}
/**
* Converts this Long to signed.
*/
toSigned(): Long {
if (!this.unsigned) return this;
return Long.fromBits(this.low, this.high, false);
}
/**
* Converts the Long to a string written in the specified radix.
* @param radix - Radix (2-36), defaults to 10
* @throws RangeError If `radix` is out of range
*/
toString(radix?: number): string {
radix = radix || 10;
if (radix < 2 || 36 < radix) throw RangeError('radix');
if (this.isZero()) return '0';
if (this.isNegative()) {
// Unsigned Longs are never negative
if (this.eq(Long.MIN_VALUE)) {
// We need to change the Long value before it can be negated, so we remove
// the bottom-most digit in this base and then recurse to do the rest.
const radixLong = Long.fromNumber(radix),
div = this.div(radixLong),
rem1 = div.mul(radixLong).sub(this);
return div.toString(radix) + rem1.toInt().toString(radix);
} else return '-' + this.neg().toString(radix);
}
// Do several (6) digits each time through the loop, so as to
// minimize the calls to the very expensive emulated div.
const radixToPower = Long.fromNumber(Math.pow(radix, 6), this.unsigned);
// eslint-disable-next-line @typescript-eslint/no-this-alias
let rem: Long = this;
let result = '';
// eslint-disable-next-line no-constant-condition
while (true) {
const remDiv = rem.div(radixToPower);
const intval = rem.sub(remDiv.mul(radixToPower)).toInt() >>> 0;
let digits = intval.toString(radix);
rem = remDiv;
if (rem.isZero()) {
return digits + result;
} else {
while (digits.length < 6) digits = '0' + digits;
result = '' + digits + result;
}
}
}
/** Converts this Long to unsigned. */
toUnsigned(): Long {
if (this.unsigned) return this;
return Long.fromBits(this.low, this.high, true);
}
/** Returns the bitwise XOR of this Long and the given one. */
xor(other: Long | number | string): Long {
if (!Long.isLong(other)) other = Long.fromValue(other);
return Long.fromBits(this.low ^ other.low, this.high ^ other.high, this.unsigned);
}
/** This is an alias of {@link Long.isZero} */
eqz(): boolean {
return this.isZero();
}
/** This is an alias of {@link Long.lessThanOrEqual} */
le(other: string | number | Long | Timestamp): boolean {
return this.lessThanOrEqual(other);
}
/*
****************************************************************
* BSON SPECIFIC ADDITIONS *
****************************************************************
*/
toExtendedJSON(options?: EJSONOptions): number | LongExtended {
if (options && options.relaxed) return this.toNumber();
return { $numberLong: this.toString() };
}
static fromExtendedJSON(doc: { $numberLong: string }, options?: EJSONOptions): number | Long {
const result = Long.fromString(doc.$numberLong);
return options && options.relaxed ? result.toNumber() : result;
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
return `new Long("${this.toString()}"${this.unsigned ? ', true' : ''})`;
}
}
Object.defineProperty(Long.prototype, '__isLong__', { value: true });
Object.defineProperty(Long.prototype, '_bsontype', { value: 'Long' });