- 42 LIR instructions in bootstrap/lir.nim
- HIR→LIR lowering in bootstrap/lir_lower.nim
- LIR→C emission with full struct/enum/vtable support
- All 22 examples + 5 Nim unit tests passing
- Updated README status and backend description
The old findGenericCalls second-pass only looked in non-generic functions
and generated unresolved instances like Array_Get_T when generic funcs
called other generic funcs. Removed it entirely.
lowerExpr for ekCall now invokes generateMethodInstance directly for
both explicit (ekGenericCall) and inferred generic calls. This ensures
concrete instantiations are generated on-demand with correct typeSubst.
Also added guard in resolveTypeExpr/substituteType to skip emitting C
struct definitions for unresolved type parameters (e.g. Array<T> inside
a generic function body before monomorphization).
feat(std): add Std::Iter module
- Array_Iter, Iter_Next, Iter_HasNext, Iter_Peek, Iter_Reset
- Iter_Pos, Iter_Len, Iter_Count, Iter_Skip, Iter_Take
docs: document Std::Iter in Stdlib.md
examples: add iter.bux example
tests: add _test_array regression test
- Fix sema.nim: use objType.name instead of obj.name for algebraic enum
tag/data field types (was generating _Tag instead of EnumName_Tag)
- Fix c_backend.nim: emit enum definitions before struct definitions
to allow structs to reference algebraic enum types
- Add bux_mutex_* and bux_rwlock_* C runtime functions
- Add library/std/Sync.bux with Mutex and RwLock wrappers
- Add examples/sync.bux — threaded counter with Mutex
- Update docs/Stdlib.md with Sync section and example
- Update README.md feature table
- Initialize result to 0 in Channel_RecvInt/RecvFloat64 to handle closed channel
- Add producer/consumer channel example in examples/channel.bux
- Update README.md with Channels syntax preview
- Add isOwn field to Symbol for tracking own T declarations
- Reinitialization after move: assigning to a moved variable removes it from movedVars
- Move tracking in let/var initialization: var b: own Box = a moves a
- Move tracking in assignment: x = y moves y if y is own T
- Move tracking in return: return x moves x if x is own T
- Expand borrow_test.nim to 10 tests (all passing)
- C runtime (OpenSSL): bux_sha256, bux_hmac_sha256, bux_random_bytes,
bux_base64_encode, bux_base64_decode, bux_bytes_to_hex
- library/std/Crypto.bux: Crypto_Sha256, Crypto_HmacSha256,
Crypto_HmacSha256Raw, Crypto_RandomBytes, Crypto_Base64Encode,
Crypto_Base64Decode
- examples/jwt.bux: full JWT creation with HS256 signature
- Link with -lcrypto in C backend
- Lexer (Nim + Bux): resolve escape sequences (\n, \t, \r, etc) instead of
keeping raw source text in token. This was the root cause of \n being
double-escaped to \\n in generated C code.
- Manifest parser (src_bux/manifest.bux): use bux_strlen instead of broken
String_SplitCount(s, "") hack for string length; fix quote stripping.
- CLI (src_bux/cli.bux): --version/--help now recognized alongside version/help.
- Remove ~30+ debug Print statements from cli, parser, lexer, sema, main.
- Clean up unneeded Print/PrintInt extern declarations.
- _selfhost/src/: synced from src_bux/.
- Fix segfault from uninitialized Symbol structs in scope/hir_lower/sema
- Fix null ReadFile crash in Cli_MergeFileInto (missing stdlib files)
- Extend function params from 6 to 9 (bux_str_format needs 9 args)
- Add ExprList/HirArgList linked lists for >2 call arguments
- Add banner image to README
- Update docs: C backend is now primary (not QBE)
Major changes:
- Cli_BuildProject now uses CBackend_Generate instead of QBE SSA generation
- Replaced QBE invocation (vendor/qbe/qbe) with direct cc compilation
- Cli_Build (single-file) now compiles C output with cc including runtime.c/io.c
- Added import-based stdlib merging: only imported Std::* modules are merged,
eliminating unused generic code from Array/Map/Set/Channel in simple programs
C backend fixes:
- Fixed struct typedef redefinition: struct definitions now use 'struct Name {}'
instead of 'typedef struct {} Name' to avoid conflicting with forward typedefs
- Added enum support: HirEnum struct, enum emission in C backend, variant
constants emitted as #define Name_Value
- Added char8 typedef
- Skip generic structs/functions (T/K/V type parameters) in C emission
Sema fixes:
- Fixed Sema_IsNumeric: now correctly recognizes uint, float32, float64
- Fixed return type check: allow pointer compatibility (String <-> *T)
Tested: hello, fibonacci, factorial, enums examples build and run via buxc2
- Iterate function body statements and call Sema_CheckStmt on each
- Add Sema_CheckBlock helper for child scope creation in if/while/for/loop blocks
- Extend Sema_CheckStmt to handle all statement kinds: skIf, skWhile, skDoWhile,
skLoop, skFor, skMatch, skBreak, skContinue, skDecl, skReturn
- Extend Sema_CheckExpr with ekAssign, ekField, ekIndex, ekBlock, ekSelf
- Fix ekCall to resolve return type from function declaration
- Fix ekBinary to handle assignment operators (tkAssign, +=, -=, etc.)
- Add Sema_CollectGlobals handling for dkUse (imports), dkConst, dkEnum variants
- Add tkColonColon path parsing in parser (Color::Red)
- Add decl field to Symbol struct for function/type resolution
- Add Sema_ZeroInitSymbol helper to avoid garbage from uninitialized struct fields
- Fix concurrency.bux missing Task_Join import
All examples now pass buxc2 check. make selfhost succeeds.
- QBE_IsTerminator(hBlock) checks ALL children, not just last
- Removed legacy c_backend.bux and nim_backend.bux from _selfhost/src/
- QBE self-hosting QBE phase: PASSES (SSA valid, assembled to .s)
- Remaining: linker errors from missing String_Eq/StringBuilder in runtime
The self-hosted compiler crashed with SIGSEGV when processing files
that generated >=256 parser diagnostics (e.g. truncated source files).
The parser allocated a fixed-size diag buffer of 256 entries, but
parserExpect, parserExpectIdentOrKeyword, and parserEmitDiag wrote
into it without checking bounds. Once diagCount exceeded 256, writes
overflowed into adjacent heap objects (Decl structs), corrupting
their kind/childDecl2 fields and causing crashes during AST traversal.
This fix adds bounds checks to all three sites so excess diagnostics
are silently dropped rather than corrupting memory. The file size
threshold (7037 vs 7062 bytes) was a red herring — it determined
how many parser errors were generated before EOF.
Closes: selfhost segfault on 250+ line files
- Fix lexer unterminated char error test (was treating 'a as lifetime)
- Fix parser test sample.bux path for root-dir execution
- Add bux_system() to runtime.c and run command to selfhost CLI
- Switch bux_alloc from malloc to calloc for zero-init
- Fix module flattening in Cli_Check/Cli_Compile to scan full decl list
- Make test passes fully, selfhost builds successfully
dimgigov