dynatrace-cordova-outsystems-plugin/node_modules/safer-buffer/safer.js

This plugin gives you the ability to use the Dynatrace instrumentation in your hybrid application (Cordova, Ionic, ..). It uses the Mobile Agent, the JavaScript Agent and the Javascript Bridge. The Mobile Agent will give you all device specific values con

/* eslint-disable node/no-deprecated-api */

'use strict'

var buffer = require('buffer')
var Buffer = buffer.Buffer

var safer = {}

var key

for (key in buffer) {
  if (!buffer.hasOwnProperty(key)) continue
  if (key === 'SlowBuffer' || key === 'Buffer') continue
  safer[key] = buffer[key]
}

var Safer = safer.Buffer = {}
for (key in Buffer) {
  if (!Buffer.hasOwnProperty(key)) continue
  if (key === 'allocUnsafe' || key === 'allocUnsafeSlow') continue
  Safer[key] = Buffer[key]
}

safer.Buffer.prototype = Buffer.prototype

if (!Safer.from || Safer.from === Uint8Array.from) {
  Safer.from = function (value, encodingOrOffset, length) {
    if (typeof value === 'number') {
      throw new TypeError('The "value" argument must not be of type number. Received type ' + typeof value)
    }
    if (value && typeof value.length === 'undefined') {
      throw new TypeError('The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type ' + typeof value)
    }
    return Buffer(value, encodingOrOffset, length)
  }
}

if (!Safer.alloc) {
  Safer.alloc = function (size, fill, encoding) {
    if (typeof size !== 'number') {
      throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
    }
    if (size < 0 || size >= 2 * (1 << 30)) {
      throw new RangeError('The value "' + size + '" is invalid for option "size"')
    }
    var buf = Buffer(size)
    if (!fill || fill.length === 0) {
      buf.fill(0)
    } else if (typeof encoding === 'string') {
      buf.fill(fill, encoding)
    } else {
      buf.fill(fill)
    }
    return buf
  }
}

if (!safer.kStringMaxLength) {
  try {
    safer.kStringMaxLength = process.binding('buffer').kStringMaxLength
  } catch (e) {
    // we can't determine kStringMaxLength in environments where process.binding
    // is unsupported, so let's not set it
  }
}

if (!safer.constants) {
  safer.constants = {
    MAX_LENGTH: safer.kMaxLength
  }
  if (safer.kStringMaxLength) {
    safer.constants.MAX_STRING_LENGTH = safer.kStringMaxLength
  }
}

module.exports = safer