How use this?

[mamcx]

I plan to build a toy language (mix of python/julia) with a type system/inference and generate luajit and find this project. But is not clear how exactly use this. Any small tutorial in how use it?

Also: How good is the error reporting?

[eliben]

I'm sorry, but there's no tutorial. There's asdl_c.py which uses the module to emit C code, and there's asdl_test.py which has tests. Both have sample code that use the module, and can be learned from.