Commit Graph

12 Commits

Author SHA1 Message Date
dimgigov 90e67079f4 cleanup(selfhost): remove unused Print/PrintLine externs + dead debug comments from sema.bux 2026-06-09 15:59:57 +03:00
dimgigov 3ed5891de2 fix(selfhost): block scoping for if/while/loop/match bodies
- Create child scope in Sema_CheckBlock for every block, matching
  bootstrap sema.nim behavior (newScope for ekBlock).
- Fixes "var scoping bug in selfhost sema" where variables declared
  with var inside if/while blocks shared parent function scope, causing
  duplicate-definition errors between sibling if/else blocks, and C
  scoping mismatch between user variables and compiled output.
- Remove stale workaround comments from lib/Json.bux (let instead of
  var inside if blocks — no longer needed).
- Update sema.bux TODO comment for type table.
2026-06-09 15:56:16 +03:00
dimgigov 4a860095fd fix(selfhost): resolve segfault in buxc2 compiling src/
- Replace Decl's 256 inline struct fields with dynamic fields: *StructField
  array to avoid parser field limit truncation and name shifts.
- Update parser.bux and hir_lower.bux to use decl.fields[i].
- Fix uninitialized Symbol.refType in three stack-allocated Symbol sites:
  loopSym (for-loop iterator), vSym (enum variants), and HIR param sym.
  Garbage refType values (e.g. 0xFF) were leaking into scope tables,
  later copied to expr->refType, causing SIGSEGV in Lcx_LowerExpr.
2026-06-09 15:03:45 +03:00
dimgigov 0c41c7bb25 feat(selfhost): function types (func(Params) -> Ret)
- Add tekFunc AST node and TypeExprList linked list for params
- Parse func(T, U) -> R syntax in parser.bux
- Resolve tekFunc to tyFunc in sema.bux
- Track original TypeExpr via Symbol.refType for params/lets/consts/funcs
- Build C function-pointer type names in hir_lower.bux (Ret (*)(Params))
- Lower indirect calls through function-typed values as hCallIndirect
- Add CBE_CParamDecl helper in c_backend.bux to embed name inside (*)
- Emit hCallIndirect and function-pointer variable declarations
- _test_funcptr now builds and runs with selfhost buxc2
2026-06-08 23:39:15 +03:00
dimgigov 3f0a3901ca feat: named and default parameters
Bootstrap compiler:
- ast.nim: add exprCallArgNames to ekCall for named arg tracking
- parser.nim: detect name: value syntax in call args
- sema.nim: add resolveCallArgs helper that injects default values
  for missing params and reorders named args into param order.
  Parser already parsed default param values; sema now uses them.

Selfhost compiler:
- ast.bux: add defaultExpr to Param, argName to ExprList
- parser.bux: parse = defaultExpr in param list, detect name: value
  syntax in call arguments
- sema.bux: add Sema_ResolveCallArgs with same logic as bootstrap

Tests:
- _test_named_params verifies defaults, named args, mixed positional+named,
  and named args with defaults in both compilers.

All verifications pass: build, selfhost-loop, test-examples, test-golden.
2026-06-08 22:02:19 +03:00
dimgigov 2cb971a483 fix(selfhost/parser): skip newlines inside expressions
The selfhost parser did not skip tkNewLine tokens inside expression parsing,
causing multi-line expressions (e.g. if conditions spanning lines with ||)
to be truncated. When parserParseBinaryPrec hit a newline it treated it as
an invalid primary, returning a malformed literal and leaving p.pos at the
newline. parserParseBlock then failed to find '{' and its depth-counter
fallback consumed far too many tokens, causing subsequent function bodies
to be parsed into the wrong AST nodes.

Fix: add newline skipping in parserParsePrimary, parserParseUnary, and
parserParseBinaryPrec, matching the bootstrap parser's skipNewlines() calls
in parseAnd/parseOr.

Also complete the variant cap raise from 8->9 in src/sema.bux (was already
done in ast.bux, parser.bux, hir_lower.bux).
2026-06-08 19:45:05 +03:00
dimgigov 46814b2abc feat: selfhost-loop determinism, golden tests, sema diagnostics 2026-06-07 17:37:22 +03:00
dimgigov 1f0baefa5a feat: add selfhost-loop determinism check, golden tests, improve sema diagnostics
- Makefile: new targets `test-golden` and `selfhost-loop`
  - selfhost-loop verifies C codegen determinism (2-pass bootstrap)
  - test-golden compares C output against expected.c golden files
  - Updated clean-all to clean new build dirs
- tests/golden/hello/: first golden test (hello world)
- src/sema.bux:
  - Fix: import stubs only registered if symbol doesn't already exist
  - Improve: error message now includes identifier name
2026-06-07 15:47:48 +03:00
dimgigov 3b4456f01f selfhost: expand Decl to 256 fields, fix unary precedence, add discard/var parsing, fix diag buffer overflow
- ast.bux: Decl expanded with field0..field255, variant0..7, param0..8
- parser.bux: add parserParseUnary for correct unary precedence; handle tkDiscard statements; allow var without initializer (matching bootstrap); add diagCount bounds check in parserEmitDiag
- hir.bux: HirParam changed to pointers
- hir_lower.bux: full field chains for struct lowering
- c_backend.bux: hardened -> vs . field access; null checks in CBE_GetExprTypeName
- cli.bux: add -lcrypto to linker
2026-06-07 14:58:23 +03:00
dimgigov 0bdef58182 selfhost: fix pointer field access, algebraic enums, string literal escaping
- hir_lower: use per-function scope instead of global scope for params
  fixes p->error emission for pointer parameters
- parser: assign variant4..variant7 in enum decls (was only 0..3)
- c_backend: escape quotes, backslash, newline, tab, cr in string literals
- runtime: bux_write_file now writes raw bytes (was un-escaping sequences)
- c_backend: emit algebraic enums as tagged unions (tag enum + data union + struct)
- hir_lower: add hBreak/hContinue lowering
- sema: skip empty variant names when collecting enum globals
2026-06-06 23:54:09 +03:00
dimgigov 3ae8c60ebb fix(bootstrap): resolve lir lower crashes and struct-copy bugs
- Fix lirValToC crash on lvkInt in hStore raw C emission
- Add hAlloca handling to lowerExpr (returns &name, avoids unhandled fallback)
- Fix nested comment syntax in unhandled expr fallback
- Rewrite buildLval to handle hIndexPtr and nested hFieldPtr/hArrowField
  so assignments like arr[i].field = val emit direct C lvalues
- Make &&/|| temporaries unique (__and_tmp_N/__or_tmp_N) to avoid
  duplicate declarations in the same function
- Selfhost null-deref fix in sema.bux (unchained nested conditions)
2026-06-06 21:46:25 +03:00
dimgigov ac969b37c1 v0.3.0: restructure directories
- src/        ← compiler/selfhost/  (canonical Bux compiler)
- bootstrap/  ← compiler/bootstrap/ (Nim bootstrap)
- lib/        ← library/std/        (standard library)
- rt/         ← library/runtime/    (C runtime)
- tests/      ← compiler/tests/     (unit tests)
- Remove _selfhost/ (built into build/selfhost/ now)
- Update all path references (Makefile, cli.nim, cli.bux, docs)
- Bump version to 0.3.0
2026-06-06 04:53:39 +03:00