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Start your free trialHasseeb Hussain
2,154 PointsWhat's gone wrong?
Help!
enum ParserError: ErrorType {
case EmptyDictionary
case InvalidKey
}
struct Parser {
var data: [String : String?]?
func parse() throws {
guard let _ = data else {
throw ParserError.EmptyDictionary
}
guard let _ = data!["someKey"] else {
throw ParserError.InvalidKey
}
}
}
let data: [String : String?]? = ["someKey": nil]
do {
let parser = try Parser(data: data).parse()
} catch {
print("Error")
}
1 Answer
Jeff McDivitt
23,970 PointsYou switched the code given from Error to ErrorType (You should never need to adjust the code provided for the IOS course). I believe you can figure out the other errors by the code provided. Let me know if you have any questions
enum ParserError: Error {
case emptyDictionary
case invalidKey
}
struct Parser {
var data: [String : String?]?
func parse() throws {
guard let data = data else {
throw ParserError.emptyDictionary
}
guard data["somekey"] != nil else {
throw ParserError.invalidKey
}
}
}
let data: [String : String?]? = ["someKey": nil]
let parser = Parser(data: data)
do {
let parser = try Parser(data: data)
try parser.parse()
} catch ParserError.emptyDictionary(let description) {
print(description)
}
catch ParserError.invalidKey(let description) {
print(description)
}