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Start your free trialperpetual makayi
8,441 Pointserror handling in swift 3
enum ParserError: Error { case EmptyDictionary case InvalidKey }
struct Parser { var data: [String : String?]?
func parse() throws {
guard let parsedData = data else {
throw ParserError.EmptyDictionary
}
guard parsedData.keys.contains("someKey") else {
throw ParserError.InvalidKey
}
}
}
let data: [String : String?]? = ["someKey": nil]
do { let parser = try Parser(data: data) parser.parse() } catch ParserError.EmptyDictionary {
} can anyone help my error is in the line that says parse.parse()
enum ParserError: Error {
case EmptyDictionary
case InvalidKey
}
struct Parser {
var data: [String : String?]?
func parse() throws {
guard let parsedData = data else {
throw ParserError.EmptyDictionary
}
guard parsedData.keys.contains("someKey") else {
throw ParserError.InvalidKey
}
}
}
let data: [String : String?]? = ["someKey": nil]
do {
let parser = try Parser(data: data)
parser.parse()
} catch ParserError.EmptyDictionary {
}
1 Answer
Jeff McDivitt
23,970 Pointsenum 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)
}