Question

我在swift中创建一个字典，需要很长时间（20分钟）来编译

[RegularExpression("[A-Za-z]*", ErrorMessage = "Use Alphabets Only")]

我已经测试了它，我知道这是这本字典的创建，因为我已经尝试删除了一半的字典，它的编译速度要快得多。有没有人对如何提高速度有一些提示？

Answer 1

在字典中为字典分配文字值是当前Swift版本中的错误，可能会触发编译问题。一个快速的解决方法是避免文字，并做很长的路。

   var dictionaryRepresentation =  [String: Any]()
   dictionaryRepresentation[key1] = value1
   dictionaryRepresentation[key2] = value2
   ...

它生成更多代码，但编译速度非常快。

我提供了一个完整的代码示例，以这种方式快速编译...我相信你可以同样修改自己的代码......

import Foundation

func getDict(email : String, zipCode : String, city: String, state: String,  country: String, creditRating: String,
     wantsPetFriendly: Bool, wantsSmoking: Bool, wantsWasherDryer: Bool, wantsGarage: Bool, wantsDishwasher: Bool,
       wantsBackyard: Bool, wantsPool: Bool,  wantsGym: Bool, firstName: String, lastName: String,
      wantedPayment: NSNumber,  id: Int,  wantedBedroomCount: NSNumber, wantedBathroomCount: NSNumber,
      bio: String?, starRating: Int, maritalStatus: String?, currentOccupation: String?,
      withinRangeMiles: Bool, bankruptcies: String, criminalHistory: String?,
      driversLicenceNum: Int?, driversLicensePicURL: String?, evictionHistory: String?,
      income: Int?, isStudent: Bool?, isVerified: Bool?, previousAddress: String?, 
      school : String?,studentPhotoIDURL: String?,
      studentID: String?, reasonForLeaving: String?) -> [String: Any] {
                var dictionaryRepresentation =  [String: Any]()
                dictionaryRepresentation["kEmail"] = email
                dictionaryRepresentation["kZipCode"] = zipCode
                dictionaryRepresentation["kCity"] = city
                dictionaryRepresentation["kState"] = state
                dictionaryRepresentation["kCountry"] = country
                dictionaryRepresentation["kCreditRating"] = creditRating
                dictionaryRepresentation["kPetsAllowed"] = wantsPetFriendly
                dictionaryRepresentation["kSmokingAllowed"] = wantsSmoking
                dictionaryRepresentation["kWasherDryer"] = wantsWasherDryer
                dictionaryRepresentation["kGarage"] = wantsGarage
                dictionaryRepresentation["kDishwasher"] = wantsDishwasher
                dictionaryRepresentation["kBackyard"] = wantsBackyard
                dictionaryRepresentation["kPool"] = wantsPool
                dictionaryRepresentation["kGym"] = wantsGym
                dictionaryRepresentation["kFirstName"] = firstName
                dictionaryRepresentation["kLastName"] = lastName
                dictionaryRepresentation["kMonthlyPayment"] = Int(wantedPayment)
                dictionaryRepresentation["kID"] = id
                dictionaryRepresentation["kBedroomCount"] = Int(wantedBedroomCount)
                dictionaryRepresentation["kBathroomCount"] = wantedBathroomCount
                dictionaryRepresentation["kBio"] = bio ?? "No bio available"
                dictionaryRepresentation["kStarRating"] = starRating
                dictionaryRepresentation["kMaritalStatus"] = maritalStatus ?? "Not specified"
                dictionaryRepresentation["kCurrentOccupation"] = currentOccupation ?? "No occupation yet"
                dictionaryRepresentation["kWithinRangeMiles"] = withinRangeMiles
                dictionaryRepresentation["kBankruptcies"] = bankruptcies
                dictionaryRepresentation["kCriminalHistory"] = criminalHistory ?? ""
                dictionaryRepresentation["kDriversLicenseNumber"] = driversLicenceNum ?? ""
                dictionaryRepresentation["kDriversLicensePicURL"] = driversLicensePicURL ?? ""
                dictionaryRepresentation["kEvictionHistory"] = evictionHistory ?? ""
                dictionaryRepresentation["kIncome"] = income ?? 0
                dictionaryRepresentation["kIsStudent"] = isStudent ?? false
                dictionaryRepresentation["kIsVerified"] = isVerified ?? false
                dictionaryRepresentation["kPreviousAddress"] = previousAddress ?? ""
                dictionaryRepresentation["kReasonsForLeaving"] = reasonForLeaving ?? ""
                dictionaryRepresentation["kSchool"] = school ?? ""
                dictionaryRepresentation["kStudentID"] = studentID ?? ""
                dictionaryRepresentation["kStudentPhotoIdURL"] = studentPhotoIDURL ?? "" 
  return dictionaryRepresentation;
}

编译Swift源文件与创建字典有关

1 个答案: