SubstanceChange

public struct SubstanceChange

Undocumented

  • Undocumented

    Declaration

    Swift

    public func oldValue<A>() -> A?

  • Undocumented

    Declaration

    Swift

    public func newValue<A>() -> A?

  • Undocumented

    Declaration

    Swift

    public func key() -> String?

  • Undocumented

    Declaration

    Swift

    public func substance() -> SubstanceConcrete?