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Текущая директория: /opt/BitGoJS/node_modules/web3-validator/lib/commonjs/validation
Просмотр файла: numbers.js
"use strict";
/*
This file is part of web3.js.
web3.js is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
web3.js is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with web3.js. If not, see <http://www.gnu.org/licenses/>.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.isNumber = exports.isInt = exports.isUInt = exports.bigintPower = exports.isBigInt = void 0;
const utils_js_1 = require("../utils.js");
const string_js_1 = require("./string.js");
/**
* Checks if a given value is a valid big int
*/
const isBigInt = (value) => typeof value === 'bigint';
exports.isBigInt = isBigInt;
// Note: this could be simplified using ** operator, but babel does not handle it well
// you can find more at: https://github.com/babel/babel/issues/13109 and https://github.com/web3/web3.js/issues/6187
/** @internal */
const bigintPower = (base, expo) => {
// edge case
if (expo === BigInt(0)) {
return BigInt(1);
}
let res = base;
for (let index = 1; index < expo; index += 1) {
res *= base;
}
return res;
};
exports.bigintPower = bigintPower;
const isUInt = (value, options = {
abiType: 'uint',
}) => {
if (!['number', 'string', 'bigint'].includes(typeof value) ||
(typeof value === 'string' && value.length === 0)) {
return false;
}
let size;
if (options === null || options === void 0 ? void 0 : options.abiType) {
const { baseTypeSize } = (0, utils_js_1.parseBaseType)(options.abiType);
if (baseTypeSize) {
size = baseTypeSize;
}
}
else if (options.bitSize) {
size = options.bitSize;
}
const maxSize = (0, exports.bigintPower)(BigInt(2), BigInt(size !== null && size !== void 0 ? size : 256)) - BigInt(1);
try {
const valueToCheck = typeof value === 'string' && (0, string_js_1.isHexStrict)(value)
? BigInt((0, utils_js_1.hexToNumber)(value))
: BigInt(value);
return valueToCheck >= 0 && valueToCheck <= maxSize;
}
catch (error) {
// Some invalid number value given which can not be converted via BigInt
return false;
}
};
exports.isUInt = isUInt;
const isInt = (value, options = {
abiType: 'int',
}) => {
if (!['number', 'string', 'bigint'].includes(typeof value)) {
return false;
}
if (typeof value === 'number' && value > Number.MAX_SAFE_INTEGER) {
return false;
}
let size;
if (options === null || options === void 0 ? void 0 : options.abiType) {
const { baseTypeSize, baseType } = (0, utils_js_1.parseBaseType)(options.abiType);
if (baseType !== 'int') {
return false;
}
if (baseTypeSize) {
size = baseTypeSize;
}
}
else if (options.bitSize) {
size = options.bitSize;
}
const maxSize = (0, exports.bigintPower)(BigInt(2), BigInt((size !== null && size !== void 0 ? size : 256) - 1));
const minSize = BigInt(-1) * (0, exports.bigintPower)(BigInt(2), BigInt((size !== null && size !== void 0 ? size : 256) - 1));
try {
const valueToCheck = typeof value === 'string' && (0, string_js_1.isHexStrict)(value)
? BigInt((0, utils_js_1.hexToNumber)(value))
: BigInt(value);
return valueToCheck >= minSize && valueToCheck <= maxSize;
}
catch (error) {
// Some invalid number value given which can not be converted via BigInt
return false;
}
};
exports.isInt = isInt;
const isNumber = (value) => {
if ((0, exports.isInt)(value)) {
return true;
}
// It would be a decimal number
if (typeof value === 'string' &&
/[0-9.]/.test(value) &&
value.indexOf('.') === value.lastIndexOf('.')) {
return true;
}
if (typeof value === 'number') {
return true;
}
return false;
};
exports.isNumber = isNumber;
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