Smalltalk basically did that. The code can be serialized to text (and usually is) but in the system it's just in a database. What file represents what source co

Smalltalk basically did that. The code can be serialized to text (and usually is) but in the system it's just in a database. What file represents what source code, doesn't matter to the user. The system can create directories and files as needed to represent it in whatever the sane way to represent it is. You're just editing the code and not dealing with the mundane and tedious serialization bits. You don't have to get into nonsensical wars about what goes in what file or what directory, you just care about packages, classes, and methods.