packages/util/src/bi/toBigInt.ts
// Copyright 2017-2024 @polkadot/util authors & contributors
// SPDX-License-Identifier: Apache-2.0
import type { BN } from '../bn/bn.js';
import type { ToBigInt, ToBn } from '../types.js';
import { BigInt } from '@polkadot/x-bigint';
import { hexToBigInt } from '../hex/toBigInt.js';
import { isBn } from '../is/bn.js';
import { isHex } from '../is/hex.js';
import { isToBigInt } from '../is/toBigInt.js';
import { isToBn } from '../is/toBn.js';
/**
* @name nToBigInt
* @summary Creates a bigInt value from a BN, bigint, string (base 10 or hex) or number input.
*/
export function nToBigInt <ExtToBn extends ToBigInt | ToBn> (value?: ExtToBn | BN | bigint | string | number | null): bigint {
return typeof value === 'bigint'
? value
: !value
? BigInt(0)
: isHex(value)
? hexToBigInt(value.toString())
: isBn(value)
? BigInt(value.toString())
: isToBigInt(value)
? value.toBigInt()
: isToBn(value)
? BigInt(value.toBn().toString())
: BigInt(value);
}