Returns the given instance cast unconditionally to the specified type.
SDK
- Xcode 7.1+
Framework
- Swift Standard Library
Declaration
func unsafeDowncast<T>(_ x: AnyParameters
xAn instance to cast to type
T.typeThe type
Tto whichxis cast.
Return Value
The instance x, cast to type T.
Discussion
The instance passed as x must be an instance of type T.
Use this function instead of unsafe because this function is more restrictive and still performs a check in debug builds. In -O builds, no test is performed to ensure that x actually has the dynamic type T.