molnaredom / transpy

(Thesis) Transforming conditions into structural patterns with Python AST

It's my thesis

Its about transforming Python source code and stuff.
It also got accepted as a submission at the ICSME 2022 in the SCAM Engineering Track for some reason. _^(🤓)
Both the submitted (English) paper and the original (Hungarian) thesis can be found in the repo.

What it does

Transforms suitable conditional branches into the newer, more trendy form of structural pattern matching.
For example:

if isinstance(obj, Cat):
    if obj.color == 'black' or obj.color == 'gray':
        turn_around()
    elif obj.color == 'orange' and obj.weight == 'a lot':
        give_lasagne()
    else:
        ignore_cat()

🠋🠋🠋🠋

match obj:
    case Cat(color='black' | 'gray'):
        turn_around()
    case Cat(color='orange', weight='a lot'):
        give_lasagne()
    case Cat():
        ignore_cat()

Usage

Pretty straight forward, just run the module with python. the only required argument is the absolute path of the file / project you want to transform.
Use the -h flag for more info.