// RUN: %target-swift-frontend -emit-ir %s | |
// rdar://29605388 -- Swift 3 admitted opening an existential type with | |
// associated types in one case. | |
protocol HasAssoc { | |
associatedtype A | |
} | |
enum MyError : Error { | |
case bad(Any) | |
} | |
func checkIt(_ js: Any) throws { | |
switch js { | |
case let dbl as HasAssoc: | |
throw MyError.bad(dbl) | |
default: | |
fatalError("wrong") | |
} | |
} |