Functions

The following functions are available globally.

  • Unwraps the given optional, and throws an exception if the optional is nil.

    Declaration

    Swift

    public func unwrap<T>(_ optional: T?) throws -> T

  • Compares two error objects. Allows the comparison of different Error enums or an Error protocol and a specific Error enum.

    This is useful when catching exceptions of a specific Exception subclass and a specific underlying Error.

    catch let error as Exception where error.error == ValueError.invalidArgument

    Declaration

    Swift

    public func == <T>(lhs: Error, rhs: T) -> Bool where T : Equatable, T : Error

    Parameters

    lhs

    An error to compare with.
    rhs

    An error to compare to. Must be equatable.

    Return Value

    true if the errors are equal, false otherwise.