Desugar `is` to tag/value equality in bootstrap and selfhost so LIR
no longer drops hIs as false. Resolve monomorphized Result/Option type
names for `?` (_Tag/_Data). Call bux_exit(1) after Unwrap panic messages.
Add is_operator example and document follow-up fixes.
Replaced fixed-size locals (c0..c7) with O(n^2) linked-list walk
that handles arbitrary case counts via reverse-index traversal.
Added switch.bux test with 11 and 10 cases.
Sessions 56–69: declarative macro! with rep/zip/literal/block and
unhygienic var $name binders; partial field-move skip Drop; @[Release]
polish; LSP type hierarchy; CI Nim cache + lean macOS + Windows smoke.
Add Ast_Graft/Clone/Quote helpers, HIR Lcx_GraftSourceFile, and force
definition-site paths on monomorphized bodies. Smoke checks Array mono
#line stays in lib while Main stays isolated.
Add .github/workflows/ci.yml (Nim + gcc → make test). Keep selfhost-loop
as an optional/weekly job. Document CI layout; reformat hir_lower for fmt-check.
Add tools/selfhost_loop.sh with path-normalized C and stripped ELF
checks (bootstrap ×2). Wire GitHub Actions (manual/weekly/main paths)
outside default make test. Raise selfhost lexer maxTokens for large files.
Stamp each HIR node with Decl source path; C backend tracks lastDebugFile
so #line re-emits when file or line changes. Closures inherit the
enclosing function path. Smoke checks Util_Double body maps to Util.bux.
Stamp each merged .bux path onto decls, propagate to HirFunc, and emit
#line N \"path\" per function without requiring BUX_DEBUG_FILE.
- Decl.sourceFile + Cli_StampSourceFile on merge/project parse
- HirFunc.sourceFile; CBE switches currentFile per function
- Stdlib and multi-file user packages get distinct paths automatically
Bring selfhost C backend closer to bootstrap ownership and debug quality.
- Mark locals moved into struct fields / returns (no double Drop)
- Mangle Array/Set/Map/Channel field types so user structs fully emit
- Emit #line N from HIR line; BUX_DEBUG_FILE / BUX_NO_LINE controls
Session 36: prevent UAF when Array is moved into a struct field (Nexus
headers), align selfhost cc flags with bootstrap debug/release, and add
workspace/symbol search to bux-lsp 0.6.
- Parser: zero headers after embedding so auto-drop is a no-op
- Request_WantsKeepAlive uses RequestHeader_Get again safely
- Selfhost: default -O0 -g; --release -O2 -DNDEBUG; BUX_CFLAGS
- LSP: workspace/symbol + smoke; version 0.6.0
Ship the QUALITY_PLAN stretch from ownership through ecosystem: C.1
lifetime elision (bootstrap + selfhost), bux fmt/test/doc CI hooks,
stdlib goldens, package registry (bux search/add), and LSP 0.4
position-sensitive locals with inferred let types. Full-tree format
pass plus Map/Set remove double-free fix.
Multi-field variants use Enum_Variant_Payload nested types (avoids tag name clash).
Sema resolves data.Variant.Variant_i; enum field types fully resolve tuples.
Selfhost parses full type exprs in enum payloads; emit structs/tuples before enums.
Example: examples/nested_patterns.bux (Pair::Two, Box::Val((a,c)), Shape::Dot).
Blocks can yield a value: last expression statement is the result.
Match arms accept block bodies, so multi-statement arms work:
match n {
1 => { let a = 10; a + 1 },
_ => 0
}
Bootstrap: lowerBlock(asExpr) lifts the trailing skExpr. Selfhost: parse
{...} as ekBlock, emit __blk_N yield temps (retTypeKind -2), and treat
only non-empty strValue as match/block yield. Nested enum/struct pattern
bindings recurse in both compilers.
Example: match_block.bux. Selfhost-loop remains binary-identical.
Support destructuring in match arms:
- Tuple: (a, b) binds subject._0 / _1
- Struct: Point { x: px, y: py } and shorthand Point { x, y }
Bootstrap: matchPatternBindings for pkTuple/pkStruct; register local
tuple typedefs from function bodies. Selfhost: parse, Sema_BindPattern,
Lcx_PatternBindings with scope defines. Fix operator-overload path that
crashed when typeName was null after pattern binds.
Example: examples/struct_tuple_pat.bux. Selfhost-loop IDENTICAL.
Sessions 10–12 from QUALITY_PLAN:
- Pattern payload bindings (Some(value) => value) in bootstrap and selfhost
- Empty-param closures via || (tkPipePipe) with loop/return bodies
- Expression-form match: let x = match …; newline before arms
- f"…" string interpolation desugared to String_Concat + conversions
- Lexer preserves \{ \} for literal braces in f-strings
- Bootstrap fix: f"plain" strips the f prefix after escape processing
- Examples: pattern_matching, closure_control, match_let, string_interp
Selfhost-loop remains binary-identical; all examples and error goldens pass.
Lower match to if-else for literals, ranges, enum tags, and wildcards.
Fix bootstrap literal arms that always matched; port real arm AST/parser
and Lcx_LowerMatch to selfhost with last-expression return. Expand
pattern_matching example and add parse/use-after-move/double-mut golden
diagnostics. Selfhost-loop remains binary-identical.
Add int-specialized higher-order Iter helpers that accept fat function
pointers, plus an example using named funcs and capturing closures.
Fix selfhost C backend pointer field access and Array Push indexing.
Introduce fat function pointers (BuxFn {code, env}) so capturing closures
are heap-allocated per value in both bootstrap and selfhost. Expand
Array/Map/Set/String/Test/Result APIs, add proper tuple codegen and
error snippets with multi-char underlines, golden diagnostic tests, and
LSP diagnostics via buxc check.
- Extend Lcx_BuildAutoDropFree to detect TypeName_Drop methods
registered by sema for extend Type for Drop impl blocks.
- Preserve existing @[Drop] attribute path and move semantics.
- Add design doc and implementation plan.
- Mark Destructors/Drop roadmap item done in selfhost.
- Add -Wl,--build-id=none to C compilation flags (removes non-deterministic build ID)
- Update Makefile selfhost-loop to strip debug info before ELF comparison
- Bootstrap compiler and selfhost compiler both deterministic
- @[Release] disables borrow checking and bounds checking in the function
- --release passes -O3 -flto to the C compiler for optimized builds
- Selfhost loop still deterministic
- Parse --target flag in Cli_Run before command dispatch
- Pass targetTriple through Cli_Build, Cli_BuildProject, Cli_RunProject
- Use clang with -target when cross-compiling, cc otherwise
- Selfhost loop: C output identical
- Auto-drop now only triggers for user-defined types explicitly marked
with @[Drop] on the struct declaration.
- Added move tracking in C backend to skip auto-drop for variables
that have been moved (via let y = x, return x, or assignment).
- Prevents double-free when ownership is transferred.
- Selfhost bootstrap loop verified: C output is deterministic.
dimgigov