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"use strict";
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
Object.defineProperty(exports, "__esModule", { value: true });
exports.BN = exports.bignumToBigInt = exports.bignumToString = exports.isArrowBigNumSymbol = void 0;
const buffer_js_1 = require("./buffer.js");
const compat_js_1 = require("./compat.js");
/** @ignore */
exports.isArrowBigNumSymbol = Symbol.for('isArrowBigNum');
/** @ignore */
function BigNum(x, ...xs) {
if (xs.length === 0) {
return Object.setPrototypeOf((0, buffer_js_1.toArrayBufferView)(this['TypedArray'], x), this.constructor.prototype);
}
return Object.setPrototypeOf(new this['TypedArray'](x, ...xs), this.constructor.prototype);
}
BigNum.prototype[exports.isArrowBigNumSymbol] = true;
BigNum.prototype.toJSON = function () { return `"${(0, exports.bignumToString)(this)}"`; };
BigNum.prototype.valueOf = function () { return bignumToNumber(this); };
BigNum.prototype.toString = function () { return (0, exports.bignumToString)(this); };
BigNum.prototype[Symbol.toPrimitive] = function (hint = 'default') {
switch (hint) {
case 'number': return bignumToNumber(this);
case 'string': return (0, exports.bignumToString)(this);
case 'default': return (0, exports.bignumToBigInt)(this);
}
// @ts-ignore
return (0, exports.bignumToString)(this);
};
/** @ignore */
function SignedBigNum(...args) { return BigNum.apply(this, args); }
/** @ignore */
function UnsignedBigNum(...args) { return BigNum.apply(this, args); }
/** @ignore */
function DecimalBigNum(...args) { return BigNum.apply(this, args); }
Object.setPrototypeOf(SignedBigNum.prototype, Object.create(Int32Array.prototype));
Object.setPrototypeOf(UnsignedBigNum.prototype, Object.create(Uint32Array.prototype));
Object.setPrototypeOf(DecimalBigNum.prototype, Object.create(Uint32Array.prototype));
Object.assign(SignedBigNum.prototype, BigNum.prototype, { 'constructor': SignedBigNum, 'signed': true, 'TypedArray': Int32Array, 'BigIntArray': compat_js_1.BigInt64Array });
Object.assign(UnsignedBigNum.prototype, BigNum.prototype, { 'constructor': UnsignedBigNum, 'signed': false, 'TypedArray': Uint32Array, 'BigIntArray': compat_js_1.BigUint64Array });
Object.assign(DecimalBigNum.prototype, BigNum.prototype, { 'constructor': DecimalBigNum, 'signed': true, 'TypedArray': Uint32Array, 'BigIntArray': compat_js_1.BigUint64Array });
/** @ignore */
function bignumToNumber(bn) {
const { buffer, byteOffset, length, 'signed': signed } = bn;
const words = new compat_js_1.BigUint64Array(buffer, byteOffset, length);
const negative = signed && words[words.length - 1] & (BigInt(1) << BigInt(63));
let number = negative ? BigInt(1) : BigInt(0);
let i = BigInt(0);
if (!negative) {
for (const word of words) {
number += word * (BigInt(1) << (BigInt(32) * i++));
}
}
else {
for (const word of words) {
number += ~word * (BigInt(1) << (BigInt(32) * i++));
}
number *= BigInt(-1);
}
return number;
}
if (!compat_js_1.BigIntAvailable) {
exports.bignumToString = decimalToString;
exports.bignumToBigInt = exports.bignumToString;
}
else {
exports.bignumToBigInt = ((a) => a.byteLength === 8 ? new a['BigIntArray'](a.buffer, a.byteOffset, 1)[0] : decimalToString(a));
exports.bignumToString = ((a) => a.byteLength === 8 ? `${new a['BigIntArray'](a.buffer, a.byteOffset, 1)[0]}` : decimalToString(a));
}
/** @ignore */
function decimalToString(a) {
let digits = '';
const base64 = new Uint32Array(2);
let base32 = new Uint16Array(a.buffer, a.byteOffset, a.byteLength / 2);
const checks = new Uint32Array((base32 = new Uint16Array(base32).reverse()).buffer);
let i = -1;
const n = base32.length - 1;
do {
for (base64[0] = base32[i = 0]; i < n;) {
base32[i++] = base64[1] = base64[0] / 10;
base64[0] = ((base64[0] - base64[1] * 10) << 16) + base32[i];
}
base32[i] = base64[1] = base64[0] / 10;
base64[0] = base64[0] - base64[1] * 10;
digits = `${base64[0]}${digits}`;
} while (checks[0] || checks[1] || checks[2] || checks[3]);
return digits !== null && digits !== void 0 ? digits : `0`;
}
/** @ignore */
class BN {
/** @nocollapse */
static new(num, isSigned) {
switch (isSigned) {
case true: return new SignedBigNum(num);
case false: return new UnsignedBigNum(num);
}
switch (num.constructor) {
case Int8Array:
case Int16Array:
case Int32Array:
case compat_js_1.BigInt64Array:
return new SignedBigNum(num);
}
if (num.byteLength === 16) {
return new DecimalBigNum(num);
}
return new UnsignedBigNum(num);
}
/** @nocollapse */
static signed(num) {
return new SignedBigNum(num);
}
/** @nocollapse */
static unsigned(num) {
return new UnsignedBigNum(num);
}
/** @nocollapse */
static decimal(num) {
return new DecimalBigNum(num);
}
constructor(num, isSigned) {
return BN.new(num, isSigned);
}
}
exports.BN = BN;
//# sourceMappingURL=bn.js.map
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