Motiejus Jakštys
22e6a337a8
Add escape sequence decoding for character literals (\n, \r, \t, \\, \', \", \xNN), matching upstream AstGen.zig:8662-8675. Previously only read the raw byte after the opening quote. Remaining corpus test issues: - tokenizer_test.zig: 3 string_bytes diff, 811 extra_len diff - build.zig: 25 inst diff (struct init result_ty handling) - astgen_test.zig: 1 string_bytes diff, 377 extra_len diff Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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.