Is json2ast possible?

[KevinRodrigues05]

Hi @Psycojoker ,
Im looking for a solution if we could convert the stored ast (in json) back to the same ast format/instance and unparse it.

Right now I can only unparse the ast (using astunparse) with the parsed ast instance.

Could somebody please suggest a solution for this?

[Psycojoker]

Hello,

I've took a quick look at ast.py source code and that looks doable: https://github.com/python/cpython/blob/3.8/Lib/ast.py

The _ast module (which seems to be a C module) contains all nodes classes that you can instantiate at will and set attributes on them like you want as you can see:

So you probably just need to write a small recursive function that takes ast2json json export and recreate the objects who's classes are stored in "_type" and set the corresponding attributes.

As always, the devil might be in the details.