Delete unused Jason.Codegen.jump_table_case/4

[QuinnWilton]

While reading through the code I noticed that this macro was unused.

[michalmuskala]

Thank you! ❤️

[QuinnWilton]

Edit: I actually just went and made this change, and it seems like the tests do in fact fail, so the code is needed. Sorry for the false alarm :) I hadn't yet gone through the encoding logic, and didn't realize Codegen.jump_table/2 was called directly.

Thank you for the quick merge! While tracing through the code last night, I noticed a few other bits of code that don't seem to be used, but I was hesitant to delete them in case you weren't interested in that kind of cleanup PR.

For example, as far as I can tell, this clause is never hit, since ranges are only defined using charlists: https://github.com/michalmuskala/jason/blob/master/lib/codegen.ex#L96

Would it be helpful if I also got rid of code like that too?

[michalmuskala]

I believe it's used in here - it generates a list of single-integer elements

jason/lib/encode.ex

Line 261 in 91a4eaf

slash_escapes = Enum.zip('\b\t\n\f\r\"\\', 'btnfr"\\')

But yeah, if there's any unused code, it should definitely go.

[QuinnWilton]

Yup, you're right. I missed the direct calls to Codegen.jump_table/2. Will do, thanks for getting back to me!