/test1.swift
Last active Sep 20, 2016
Swift 3 – Resolving method ambiguity defining closures as a var
| // objc's continue method signature: - (AWSTask *)continueWithBlock:(AWSContinuationBlock)block; | |
| // swift translate it as: .continue(block: (AWSTask<AWSCognitoIdentityUserPoolSignUpResponse>) -> Any?) | |
| // error: Ambiguous use of 'continue' | |
| pool.signUp(username, | |
| password: password, | |
| userAttributes: attrs, | |
| validationData: nil) | |
| .continue { (task) -> Any? in | |
| } | |
| // typealias to the rescue… | |
| typealias SignUpContinueClosure = (AWSTask<AWSCognitoIdentityUserPoolSignUpResponse>) -> (Any?) | |
| var signUpContinueClosure: SignUpContinueClosure = { (task) in | |
| return nil | |
| } | |
| // YAY!, no error! | |
| pool.signUp(username, | |
| password: password, | |
| userAttributes: attrs, | |
| validationData: nil) | |
| .continue(signUpContinueClosure) |
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