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- 'use strict';
- var GetIntrinsic = require('get-intrinsic');
- var $BigInt = GetIntrinsic('%BigInt%', true);
- var $pow = GetIntrinsic('%Math.pow%');
- var ToBigInt = require('./ToBigInt');
- var BigIntRemainder = require('./BigInt/remainder');
- var modBigInt = require('../helpers/modBigInt');
- // BigInt(2**63), but node v10.4-v10.8 have a bug where you can't `BigInt(x)` anything larger than MAX_SAFE_INTEGER
- var twoSixtyThree = $BigInt && (BigInt($pow(2, 32)) * BigInt($pow(2, 31)));
- // BigInt(2**64), but node v10.4-v10.8 have a bug where you can't `BigInt(x)` anything larger than MAX_SAFE_INTEGER
- var twoSixtyFour = $BigInt && (BigInt($pow(2, 32)) * BigInt($pow(2, 32)));
- // https://262.ecma-international.org/11.0/#sec-tobigint64
- module.exports = function ToBigInt64(argument) {
- var n = ToBigInt(argument);
- var int64bit = modBigInt(BigIntRemainder, n, twoSixtyFour);
- return int64bit >= twoSixtyThree ? int64bit - twoSixtyFour : int64bit;
- };
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