Accessing typespecs during compile time

Questions / Help
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1

Hi!

I’m trying to build a small library to transform JSON data (e.g raw, string-based maps) into structs and such based on a module’s typespec (draft implementation can be found here: https://gist.github.com/frekw/85e0a12b60bd77bc43a1f6fc4e08a9d1).

However, since I need to do a bit of parsing of the typespecs in order to accomplish this, I though I’d move it to compile time. But it seems I can’t access the typespec AST until the bytecode has been generated, which becomes a bit of a catch 22.

Is there anyway around this?

2

It looks like you are doing your generation from another module? If so then just require that other module and mix will compile it before yours is compiled. :slight_smile:

3

I managed to get it sort of working by using @after_compile, but went with another solution in the end due to some other limitations.

The result can be found here: https://github.com/soundtrackyourbrand/forma