(function() { var nodeEnv = typeof require !== 'undefined' && typeof process !== 'undefined'; var __module = nodeEnv ? module : {exports:{}}; var __filename = 'preview-scripts/__node_modules/randomfill/browser.js'; var __require = nodeEnv ? function (request) { return cc.require(request); } : function (request) { return __quick_compile_project__.require(request, __filename); }; function __define (exports, require, module) { if (!nodeEnv) {__quick_compile_project__.registerModule(__filename, module);}(function (process,global){ 'use strict' function oldBrowser () { throw new Error('secure random number generation not supported by this browser\nuse chrome, FireFox or Internet Explorer 11') } var safeBuffer = require('safe-buffer') var randombytes = require('randombytes') var Buffer = safeBuffer.Buffer var kBufferMaxLength = safeBuffer.kMaxLength var crypto = global.crypto || global.msCrypto var kMaxUint32 = Math.pow(2, 32) - 1 function assertOffset (offset, length) { if (typeof offset !== 'number' || offset !== offset) { // eslint-disable-line no-self-compare throw new TypeError('offset must be a number') } if (offset > kMaxUint32 || offset < 0) { throw new TypeError('offset must be a uint32') } if (offset > kBufferMaxLength || offset > length) { throw new RangeError('offset out of range') } } function assertSize (size, offset, length) { if (typeof size !== 'number' || size !== size) { // eslint-disable-line no-self-compare throw new TypeError('size must be a number') } if (size > kMaxUint32 || size < 0) { throw new TypeError('size must be a uint32') } if (size + offset > length || size > kBufferMaxLength) { throw new RangeError('buffer too small') } } if ((crypto && crypto.getRandomValues) || !process.browser) { exports.randomFill = randomFill exports.randomFillSync = randomFillSync } else { exports.randomFill = oldBrowser exports.randomFillSync = oldBrowser } function randomFill (buf, offset, size, cb) { if (!Buffer.isBuffer(buf) && !(buf instanceof global.Uint8Array)) { throw new TypeError('"buf" argument must be a Buffer or Uint8Array') } if (typeof offset === 'function') { cb = offset offset = 0 size = buf.length } else if (typeof size === 'function') { cb = size size = buf.length - offset } else if (typeof cb !== 'function') { throw new TypeError('"cb" argument must be a function') } assertOffset(offset, buf.length) assertSize(size, offset, buf.length) return actualFill(buf, offset, size, cb) } function actualFill (buf, offset, size, cb) { if (process.browser) { var ourBuf = buf.buffer var uint = new Uint8Array(ourBuf, offset, size) crypto.getRandomValues(uint) if (cb) { process.nextTick(function () { cb(null, buf) }) return } return buf } if (cb) { randombytes(size, function (err, bytes) { if (err) { return cb(err) } bytes.copy(buf, offset) cb(null, buf) }) return } var bytes = randombytes(size) bytes.copy(buf, offset) return buf } function randomFillSync (buf, offset, size) { if (typeof offset === 'undefined') { offset = 0 } if (!Buffer.isBuffer(buf) && !(buf instanceof global.Uint8Array)) { throw new TypeError('"buf" argument must be a Buffer or Uint8Array') } assertOffset(offset, buf.length) if (size === undefined) size = buf.length - offset assertSize(size, offset, buf.length) return actualFill(buf, offset, size) } }).call(this,require("../process/browser.js"),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) } if (nodeEnv) { __define(__module.exports, __require, __module); } else { __quick_compile_project__.registerModuleFunc(__filename, function () { __define(__module.exports, __require, __module); }); } })();