Function isPlainObject

packages/utils/src/object.js:11–30

(value)

}

function isPlainObject (value) {
  if (value === null || typeof value !== 'object' || type(value) !== 'Object') return false
  const proto = Object.getPrototypeOf(value)
  if (proto === null) return true
  // 处理支付宝接口返回数据对象的__proto__与js中创建对象的__proto__不一致的问题，判断value.__proto__.__proto__ === null时也认为是plainObject
  const innerProto = Object.getPrototypeOf(proto)
  if (proto === Object.prototype || innerProto === null) return true
  // issue #644
  const observeClassInstance = mpxGlobal.__mpx?.config.observeClassInstance
  if (observeClassInstance) {
    if (Array.isArray(observeClassInstance)) {
      for (let i = 0; i < observeClassInstance.length; i++) {
        if (proto === observeClassInstance[i].prototype) return true
      }
    } else {
      return true
    }
  }
  return false
}

function diffAndCloneA (a, b) {
  let diffData = null