xe-ajax/src/handle/readableStream.js

异步请求函数，用于浏览器和 node.js 的 HTTP 客户端

'use strict'

var utils = require('../core/utils')

function XEReadableStream (body, request, response) {
  this.locked = false
  this._getBody = function () {
    var stream = this
    if (utils.IS_DP) {
      response._response.bodyUsed = true
    } else {
      response.bodyUsed = true
    }
    return new Promise(function (resolve, reject) {
      if (stream.locked) {
        reject(utils.createErr('body stream already read'))
      } else {
        stream.locked = true
        resolve(body)
      }
    })
  }
}

module.exports = XEReadableStream