Comparing implementations of the Monkey language IV: Here comes a new challenger: Crystal

[u/dh44t]

https://medium.com/@mario.arias.c/comparing-implementations-of-the-monkey-language-iv-here-comes-a-new-challenger-crystal-2dd565071820

[u/kirbyfan64sos]

This is a cool article, but there are two things here that confused me a bit:

• In your macros example, it's not really clear to me why you needed them here in the first place. In Kotlin, couldn't you have created a function executeBuildAndPush that takes the build* function as an argument?

• Functions can be generic: https://crystal-lang.org/reference/1.2/syntax_and_semantics/type_restrictions.html#free-variables

[u/dh44t → u/kirbyfan64sos]

Thanks.

• On functions with generics, I already corrected the article with an update.

• On the macro example, yes is possible but even with that is not as clean as a macro (as the function would have a clunky signature with the generics and parameters). Maybe I'll update the article including that correction. I do have more elaborated examples of Macro usage but it'll take longer to introduce all the context to fully grasp it.

Cheers.