Commit Graph

14 Commits

Author SHA1 Message Date
dimgigov 5ae85d5bd9 Phase 2: Fix sema stub — add full function body type checking
- 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.
2026-06-05 14:07:38 +03:00
dimgigov f0f94f30e1 fix(selfhost): generic struct compilation, explicit generic args, method calls, field access
- parser: add parserIsTypeArgListAhead() for Func<Type>(args) and Type<T> { ... }
- hir_lower: method call desugaring with typeName tracking, self keyword,
  ekField typeName propagation, variable type tracking, strip '*' suffix
  from pointer type names in method calls, fix externFuncs buffer overflow
  (64 -> 256 elements) that corrupted structCount
- qbe_backend: QBE_FindStruct, QBE_FieldOffset, QBE_TypeSize helpers;
  hStructInit field-by-field codegen; hFieldPtr with offset + auto-load;
  hAssign/hStore special case for hFieldPtr (generate pointer, not value);
  fix null as *HirNode -> null as *void for extraData comparisons
2026-06-05 13:07:28 +03:00
dimgigov ec4e748584 fix(qbe): use extraData instead of child3 for hIf else-branch
Block lowering overwrites child3 for statement chaining.
Else block is stored in extraData by hir_lower (matches c_backend).
Fixes QBE parse error 'last block misses jump' in if-without-else chains.
2026-06-02 18:07:35 +03:00
dimgigov 70cfa4f721 feat: backtick raw/multi-line strings + QBE backend fixes
- Add backtick raw string literals (Go-style ): no escape processing, multi-line
- C backend: handle backtick strings in emitExpr
- Self-hosted lexer: lexScanBacktickString support
- QBE backend: handle backtick strings in data sections
- QBE: remove broken extern declarations (QBE resolves at link time)
- QBE: fix comparison result types (ceql → w, extend to l)
- QBE: fix SSA parameter name clash (_p_ prefix for params)
- QBE: const inlining via HirLower + QBE emitter
- QBE: proper type mapping for bool/char types
- hir_lower: collect dkConst declarations for const propagation
2026-06-02 11:33:29 +03:00
dimgigov 975cc347d0 fix: selfhost CLI run command, lexer char literal, parser test path, calloc in runtime
- 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
2026-06-02 00:50:16 +03:00
dimgigov 2b911410cb feat: self-hosting progress - Nim backend, parser fixes, 64 struct fields, 13/14 modules check 2026-06-01 23:42:25 +03:00
dimgigov e8d8b62c9d selfhost: fix parser infinite loop + lexer token limit
- Parser_Parse: add beforePos safeguard to skip unrecognized tokens
  instead of looping forever when parserParseDecl returns null
- Lexer: increase maxTokens 4096 -> 32768; add explicit break on limit
- CLI: null-check ReadFile result before String_Eq
- Nim CLI: add -O2 to cc invocation for faster self-hosted builds
2026-06-01 14:03:54 +03:00
dimgigov 55beb23220 WIP: Bootstrap loop debugging
- Fixed module flattening in self-hosted compiler (Cli_Compile now unwraps module wrappers)
- buxc2 check now finds functions in module-wrapped files (token.bux: funcCount=6, Main.bux: funcCount=2)
- Added debug prints to trace lexer.bux timeout and check x segfault
- Remaining issues: lexer.bux hangs in self-hosted pipeline, check x segfaults in runtime
2026-06-01 12:23:25 +03:00
dimgigov 21f8b2e85a feat: async/await/spawn + fix else-if lowering bug
Self-hosted compiler (buxc2):
- Add async/await/spawn tokens, parsing, HIR, lowering, C emission
- Fix pointer type emission (*T -> T*) in C backend
- Fix sizeof(Type) parsing with parentheses
- Fix import ::{...} infinite loop guard
- Fix int64 emission by avoiding else-if chain workaround
- Add debug-free cli and hir_lower

Bootstrap compiler (Nim):
- Fix critical else-if lowering bug in hir_lower.nim:
  when both elseIfs and else block exist, elseIfs were dropped
  causing all else-if chains to collapse to if+else only

Runtime:
- Fix bux_async_await memory corruption (don't free in run)
- Add bux_remove_from_ready for safe cleanup
- Fix forward declaration and deduplicate bux_now_ms

Docs & examples:
- Update async.bux example with proper int64 params
- Update README, LanguageRef, Stdlib, PLAN for async features
- Mark Phase 7.10 bootstrap loop as completed

All 27 examples pass. buxc2 check/build work on all examples.
2026-06-01 02:57:46 +03:00
dimgigov 74117595d2 Phase 7.10: multi-file project build, module braces, else-if fix, UTF-8 lexer
Runtime (stdlib/runtime.c):
- bux_list_dir() — directory listing with extension filter
- bux_run_cc() — invoke C compiler on generated C code
- bux_mkdir_if_needed() — create build directory
- bux_dir_exists() — check if directory exists
- Removed duplicate bux_path_join

Parser (src_bux/parser.bux):
- Module parsing with braces: module X { ... }
- else-if parsing: wraps inner if in synthetic Block
- Infinite-loop safeguards in module body and struct body parsing

Lexer (src_bux/lexer.bux):
- lexPeek: mask with & 255 to handle UTF-8 signed char bytes

CLI (src_bux/cli.bux):
- Cli_BuildProject(): multi-file build from src/ directory
  - Lists .bux files, parses each, merges declarations inline
  - Runs sema + HIR + C codegen on merged module
  - Invokes C compiler to produce binary
- New extern declarations: bux_file_exists, bux_dir_exists, bux_path_join,
  bux_mkdir_if_needed, bux_run_cc, bux_list_dir
- FileExists(), DirExists() wrapper functions
- "project" command dispatch

Known issue: else-if chain not fully emitted by buxc2 C backend
(lexSkipWhitespace missing comment handling in generated C).

All 18 examples pass, all unit tests pass.
2026-05-31 18:14:35 +03:00
dimgigov cb256397bd Phase 7.9: Self-hosted compiler buxc2 builds and runs! 🎉
buxc (Nim bootstrap) successfully compiles buxc2 (Bux self-hosted compiler)
into a working 88KB ELF x86-64 binary.

Compiler fixes (Nim):
- duplicate symbol: user funcs shadow stdlib funcs via mergeDecls()
- forward declarations: func without body + definition (both orderings)
- extern func dedup: same extern in multiple files
- discard keyword: new language keyword, lowered to expr stmt or no-op
- parser: keywords as field names + advance-on-error safeguard
- parser: var without initializer (zero-init)
- parser: multi-line || && continuation expressions
- parser: else-if chain newline handling
- C backend: const declarations emitted as #define
- C backend: load(field_ptr) → base.field optimization (fixes lvalue errors)

Source fixes (src_bux/*.bux):
- types.bux: tk* → ty* prefix for type kind constants (avoid token conflict)
- sema.bux: remaining tk* → ty* references, StringMap → *void workaround
- hir_lower.bux: ekReturn removed, Lcx_LowerParam helper, *f dereference
- c_backend.bux: &mod.funcs[i] for pointer passing
- cli.bux: ReadFile/WriteFile → bux_read_file/bux_write_file wrappers
- parser.bux: pathStr.len → String_Len(pathStr)
- types.bux: "*" + x → String_Concat("*", x)

Build system:
- Makefile: added 4 missing examples + selfhost target
- PLAN.md: updated with actual project state, Phase 7.9 marked complete

All 18 examples pass, all unit tests pass.
2026-05-31 16:34:36 +03:00
dimgigov de6e89e3df Phase 7.9: multi-file build, module braces, struct init multi-line, else-if fix 2026-05-31 14:25:57 +03:00
dimgigov f4de065160 fix: module syntax — changed src_bux/*.bux from module X; to module X { ... } 2026-05-31 14:14:42 +03:00
dimgigov 6ee6b3b529 Phase 7: Self-hosting compiler — all 13 modules ported to Bux (3981 LOC) 2026-05-31 13:29:14 +03:00