Optimize the generation of the recursive macro blocks

[tamdaz]

Description

When we want to generate recursive macro blocks, I notice that the code that allows us to do this, is a little complicated. We need to find a way to optimize the code so that we can insert macro blocks more easily.

For example, we could take an approach like these:

• https://crystal-lang.org/api/1.18.2/YAML.html#build%28%26%29-class-method
• https://crystal-lang.org/api/1.18.2/JSON.html#generating-with-json.build

It remains to be seen whether the latest version of Crygen will be compatible with the future version.

https://tamdaz.github.io/crygen/guide/macro/#recursive-if-unless-and-verbatim-macro

Library version

v1.1.0

Crystal version

v1.18.0