arg_enum with builder pattern

[feuerste]

I just started to use clap v3 and I really love its new features. I have one piece of code in our codebase which is still using the builder pattern and also uses arg_enum!. How can I port this to still use the builder pattern, but without implementing FromStr myself?

[pksunkara]

Does this arg_enum example help?

[feuerste]

I can't use #[clap(arg_enum)] as I'm using the builder pattern...

[pksunkara]

Once you define #[derive(Clap)] on the enum, you will have YourEnum::VARIANTS and YourEnum::from_str(input: &str, case_insensitive: bool) -> Result<Self, String> available. You can use them.

[feuerste]

Thanks, this helped a lot!