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Dispatch error handler on main queue #184

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merged 1 commit into from
Mar 27, 2019
Merged

Dispatch error handler on main queue #184

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14 changes: 8 additions & 6 deletions MapboxGeocoder/MBGeocoder.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -268,12 +268,14 @@ open class Geocoder: NSObject {
request.setValue(userAgent, forHTTPHeaderField: "User-Agent")
return URLSession.shared.dataTask(with: request) { (data, response, error) in

guard let data = data else {
if let e = error as NSError? {
errorHandler(e)
} else {
let unexpectedError = NSError(domain: MBGeocoderErrorDomain, code: -1024, userInfo: [NSLocalizedDescriptionKey : "unexpected error", NSDebugDescriptionErrorKey : "this error happens when data task return nil data and nil error, which typically is not possible"])
errorHandler(unexpectedError)
guard let data = data else {
DispatchQueue.main.async {
if let e = error as NSError? {
errorHandler(e)
} else {
let unexpectedError = NSError(domain: MBGeocoderErrorDomain, code: -1024, userInfo: [NSLocalizedDescriptionKey : "unexpected error", NSDebugDescriptionErrorKey : "this error happens when data task return nil data and nil error, which typically is not possible"])
errorHandler(unexpectedError)
}
}
return
}
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