MemberFunctions

Example

    import MemberFunctions: WithMembers, member_functions

    # declare that `MyType` has member functions
    struct MyType <: WithMembers end
    member_functions(::Type{<:MyType}) = (; hello, goodbye)

    # implement member functions as normal Julia functions
    # taking the object as first argument
    hello(::MyType) = println("Hello !")
    goodbye(::MyType) = println("Goodbye !")

    # test
    o = MyType()
    o.hello()
    o.goodbye()