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1/* eslint-disable node/no-deprecated-api */2 3'use strict'4 5var buffer = require('buffer')6var Buffer = buffer.Buffer7var safer = require('./safer.js')8var Safer = safer.Buffer9 10var dangerous = {}11 12var key13 14for (key in safer) {15  if (!safer.hasOwnProperty(key)) continue16  dangerous[key] = safer[key]17}18 19var Dangereous = dangerous.Buffer = {}20 21// Copy Safer API22for (key in Safer) {23  if (!Safer.hasOwnProperty(key)) continue24  Dangereous[key] = Safer[key]25}26 27// Copy those missing unsafe methods, if they are present28for (key in Buffer) {29  if (!Buffer.hasOwnProperty(key)) continue30  if (Dangereous.hasOwnProperty(key)) continue31  Dangereous[key] = Buffer[key]32}33 34if (!Dangereous.allocUnsafe) {35  Dangereous.allocUnsafe = function (size) {36    if (typeof size !== 'number') {37      throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)38    }39    if (size < 0 || size >= 2 * (1 << 30)) {40      throw new RangeError('The value "' + size + '" is invalid for option "size"')41    }42    return Buffer(size)43  }44}45 46if (!Dangereous.allocUnsafeSlow) {47  Dangereous.allocUnsafeSlow = function (size) {48    if (typeof size !== 'number') {49      throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)50    }51    if (size < 0 || size >= 2 * (1 << 30)) {52      throw new RangeError('The value "' + size + '" is invalid for option "size"')53    }54    return buffer.SlowBuffer(size)55  }56}57 58module.exports = dangerous59