Motiejus Jakštys
91e1d1bd2e
Port two missing features from upstream AstGen.zig varDecl: 1. Add reachableExprComptime (AstGen.zig:418-438) which wraps init expressions in comptimeExpr when force_comptime is set, and checks for noreturn results. Replace plain exprRl calls in all three varDecl paths (const rvalue, const alloc, var) with reachableExprComptime. 2. Extract comptime_token by scanning backwards from mut_token (matching Ast.zig fullVarDeclComponents). For const path, set force_comptime to wrap init in comptime block. For var path, use comptime_token to set is_comptime which selects alloc_comptime_mut/alloc_inferred_comptime_mut tags and sets maybe_comptime on the scope. 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.