Possible to create AST at compile-time?

[Cerber-Ursi]

I'm currently trying to use Rhai for one of my personal projects, and hit an interesting question.

This program will essentially do the following:

• Build a statically-known module, with a bunch of native functions. One of these functions is essentially "run a source file with this module prepended".
• Run this function on the source file provided by the user.
• This source file can contain other calls to the same function, therefore executing other source files with the same context.
• Continue until the whole files tree is walked.

So this statically-known module, if I understand correctly, can be compiled to AST once and then reused for every source file. But the question is, is it possible to make this AST at build-time, i.e. by calling into the rhai from the build script and emitting something to include_bytes! from? I understand that AST format can be unstable and change from version to version, but since buildscript and the program itself will use the same version, this should not be a problem.

[schungx]

Is this what you want: https://rhai.rs/book/rust/modules/self-contained.html

The import statement is essentially your run function.