"dynamic" default value?

[elenakrittik]

My case is similar to #3705 (comment), except that in my case the default value needs to be computed using a function so i can't (?) use default_value[_t], and i also want to keep my commands' code clear of any let dynamic_arg = dynamic_arg.unwrap_or(get_default_value) due to arguments being Options. Any hints on how to do that?

[epage]

Not too sure what is relevant from that link.

Could you give a reproduction case of what you are attempting and isn't working so I can better understand the problem you are having so I can provide a more useful answer.

[elenakrittik]

Sorry, i now realize how confusing my question is. What i was asking is, essentially, whether it is possible to do function calls in default_value_t (hence the "dynamic default value" title). I somehow didn't even think that i could just literally write a function call in there and it'll work, so, sorry for spam!