Motiejus Jakštys
0d9afc0ae6
- Add genDefers() with DEFER_NORMAL_ONLY/DEFER_BOTH_SANS_ERR modes - Add countDefers() for checking defer types in scope chain - Add genDefers calls to breakExpr, continueExpr, retExpr, tryExpr - Add fn_block tracking to AstGenCtx (set in fnDecl/testDecl) - Add return error.Foo fast path using ret_err_value instruction - Fix fullBodyExpr scope: pass &body_gz.base instead of params_scope - Fix blockExprStmts: guard genDefers with noreturn_stmt check - Fix retExpr MAYBE path: correct dbg_stmt/restore ordering - Save/restore fn_block in containerDecl (set NULL for nested structs) - addEnsureResult now returns bool indicating noreturn First ZIR tag mismatch moved from inst[211] to inst[428]. 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.