swift-mirror/test/Generics/constrained_optional_params.swift at 08e7797f8625dca1c97a7b51e7d5c5fb4b3cfc20 - swift-mirror - Gitea: Git with a cup of tea

averello/swift-mirror

mirror of https://github.com/apple/swift.git synced 2025-12-21 12:14:44 +01:00

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Joe Pamer dce0673db1 We should avoid fixing type variables to optional types that wrap the type variable itself. When solving for the type variable, this will lead to the creation of a constraint where the variable is adjacent to itself. Such constraints are not permitted and will cause the compiler to crash. (rdar://problem/15727642)

Swift SVN r14800

2014-03-07 22:47:48 +00:00

10 lines

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Swift

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 // RUN: %swift -parse %s -verify
 protocol P {
 	func method() -> Int
 }
 func address_only_bind<T: P>(x: T?) -> Int {
   var y = x!.method()
   return y
 }