Certain logic programming languages like SWI-Prolog [0] and Picat [1] have this built-in.
[0]: https://www.swi-prolog.org/pldoc/man?section=tabling-memoize [1]: http://retina.inf.ufsc.br/picat_guide/#x1-210001.5
[0]: https://www.swi-prolog.org/pldoc/man?section=tabling-memoize [1]: http://retina.inf.ufsc.br/picat_guide/#x1-210001.5
You may want a new control operator. In case of, say, Java, you go and ask language developers. In case of Haskell, you write a function or a bunch of functions. "if-then-else" can be implemented in Haskell as a function, for one example. Myself, I created a lot of these control operators when I worked with Haskell. I also used a lot of operators defined by others.