every time I assign the object back to a copy of i...

# getting-started

[oday]

every time I assign the object back to a copy of itself with the changed fields?

[Bob Glamm]

Sounds like an optics library would do the trick - see Arrow & Arrow Optics. (I am not sure how production-ready those tools are, though.)

[oday]

you sure you got what I mean?

[oday]

how do I avoid having to do object.field2 = value

[oday]

ah, you are right, thank you

[oday]

lol @ this NASA wording, wtf

A Prism is a lossless invertible optic that can see into a structure and optionally find its focus.

[oday]

too fancy, pass

[Daniel]

Hmhm, can you give us a more detailed example? I don't understand currently.

Do you want to have immutable fields (then best look into the copy() of data classes) or do you want fields to appear immutable to the outside but change them from inside the class?