zig/stage0

About

zig0 aspires to be an interpreter of zig 0.15.1 written in C.

This is written with help from LLM:

• Lexer:
  • Datastructures 100% human.
  • Helper functions 100% human.
  • Lexing functions 50/50 human/bot.
• Parser:
  • Datastructures 100% human.
  • Helper functions 50/50.
  • Parser functions 5/95 human/bot.
• AstGen: TBD.

Testing

Quick test:

zig build fmt test

Full test and static analysis with all supported compilers and valgrind (run before commit, takes a while):

zig build -Dvalgrind

Debugging tips

Test runs infinitely? Build the test program executable:

$ zig build test -Dno-exec

And then run it, capturing the stack trace:

gdb -batch \
    -ex "python import threading; threading.Timer(1.0, lambda: gdb.post_event(lambda: gdb.execute('interrupt'))).start()" \
    -ex run \
    -ex "bt full" \
    -ex quit \
    zig-out/bin/test

You are welcome to replace -ex "bt full" with anything other of interest.