CommonValue

public enum CommonValue<T> : Equatable where T : Equatable

Indicates the state of a property that is common to multiple entities. Useful in modeling multi-select for user interface controls such as list views, multi-state checkboxes, etc.

  • Undocumented

    Declaration

    Swift

    case none

  • Undocumented

    Declaration

    Swift

    case one(T)

  • Undocumented

    Declaration

    Swift

    case multi

  • Returns the single value if there is one, or the given default value in the .none or .multi cases.

    Declaration

    Swift

    public func orDefault(_ defaultValue: T) -> T

  • Returns the single value if there is one, or nil in the .none or .multi cases.

    Declaration

    Swift

    public func orNil() -> T?

  • Returns the given value in the .multi case, otherwise returns nil.

    Declaration

    Swift

    public func whenMulti<U>(_ value: U) -> U?

  • Returns the given value in the .multi case, otherwise returns the alternate value.

    Declaration

    Swift

    public func whenMulti<U>(_ value: U, otherwise: U) -> U

  • Returns true if all items share the given value.

    Declaration

    Swift

    public func all(_ value: T) -> Bool

  • Returns the CommonValue that would result if the given value was added to the current one.

    Declaration

    Swift

    public func adding(_ value: T) -> CommonValue<T>