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- 'use strict';
- var GetIntrinsic = require('get-intrinsic');
- var $BigInt = GetIntrinsic('%BigInt%', true);
- var $Number = GetIntrinsic('%Number%');
- var $TypeError = require('es-errors/type');
- var $SyntaxError = require('es-errors/syntax');
- var StringToBigInt = require('./StringToBigInt');
- var ToPrimitive = require('./ToPrimitive');
- var isNaN = require('../helpers/isNaN');
- // https://262.ecma-international.org/11.0/#sec-tobigint
- module.exports = function ToBigInt(argument) {
- if (!$BigInt) {
- throw new $SyntaxError('BigInts are not supported in this environment');
- }
- var prim = ToPrimitive(argument, $Number);
- if (prim == null) {
- throw new $TypeError('Cannot convert null or undefined to a BigInt');
- }
- if (typeof prim === 'boolean') {
- return prim ? $BigInt(1) : $BigInt(0);
- }
- if (typeof prim === 'number') {
- throw new $TypeError('Cannot convert a Number value to a BigInt');
- }
- if (typeof prim === 'string') {
- var n = StringToBigInt(prim);
- if (isNaN(n)) {
- throw new $TypeError('Failed to parse String to BigInt');
- }
- return n;
- }
- if (typeof prim === 'symbol') {
- throw new $TypeError('Cannot convert a Symbol value to a BigInt');
- }
- if (typeof prim !== 'bigint') {
- throw new $SyntaxError('Assertion failed: unknown primitive type');
- }
- return prim;
- };
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