Its slightly different though. In the case of: let cgColor: CGColor = .clear.cgColor
clear is a static property on UIColor, not CGColor. In his example, pythagoreanTriple is a property on Double so it does feel like a bug. > On 1 Sep 2017, at 13:31, Adrian Zubarev via swift-users > <swift-users@swift.org> wrote: > > It’s because the compiler does not support this yet. It’s the same with `let > cgColor: CGColor = .clear.cgColor // will not work`. > > Instead you need to write `UIColor.clear.cgColor` or in your case > `Double.phythagoreanTruple.0` > > > Am 1. September 2017 um 12:17:57, Rudolf Adamkovič via swift-users > (swift-users@swift.org <mailto:swift-users@swift.org>) schrieb: > >> Given the following extension ... >> >> extension Double { >> typealias Triple = (Double, Double, Double) >> static let pythagoreanTriple: Triple = (3, 4, 5) >> } >> ... why does Swift compiler emits the following errors? >> >> // Type of expression is ambiguous without more context >> let a: Double = .pythagoreanTriple.0 >> >> // Type of expression is ambiguous without more context >> func f(_ x: Double) {} >> f(.pythagoreanTriple.0) >> The errors disappear with explicit Double.pythagoreanTriple.0. >> >> Why doesn't the compiler infer Double in this case? >> >> FYI: Posted also to Stack Overflow here: >> >> https://stackoverflow.com/questions/45998034/type-of-expression-is-ambiguous-for-static-tuples >> >> <https://stackoverflow.com/questions/45998034/type-of-expression-is-ambiguous-for-static-tuples> >> R+ >> >> _______________________________________________ >> swift-users mailing list >> swift-users@swift.org >> https://lists.swift.org/mailman/listinfo/swift-users > _______________________________________________ > swift-users mailing list > swift-users@swift.org <mailto:swift-users@swift.org> > https://lists.swift.org/mailman/listinfo/swift-users > <https://lists.swift.org/mailman/listinfo/swift-users>
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