shoney.arickathil
1ba035397d
- Modules: `use`/`pub`, directory-as-module, per-module symbol resolution (a
flat first-wins merge silently ran the wrong `pub fn` body), six reserved
stdlib namespaces typed UNKNOWN-BUT-RESERVED.
- Surface: `and`/`or` (own precedence tier, short-circuit, Bool-only), `${}`
interpolation desugared at parse time, `const`, break/continue with
drop-correct exits, do-while, inline-fn rejection.
- switch expr/stmt: required `default` over scalars/Text, arm unification,
EQ/EQS+JZ lowering, per-arm drop scopes with N-way JOIN-DROP; `default`
sorted last by a shared lowering order (textual order made arms dead).
- typedef records: structural, same shape = one class entry; `?name: T`
nullable-by-shape; emit_ctor fills omitted defaults; `type` as field name.
- Enum variants: all-bare unions = int ordinals; any-payload = one class
entry per variant, tag IS the header class_id (no header field, no format
bump); exhaustive switch without `default`; arity checked both directions.
- Payload escape modeled as move-out (pointer-kind fields only — a scalar
escape is a copy); caller reaps owned heap temps passed by borrow: two
unbounded LSan-blind leaks, 10.5 MB -> 1.5 MB flat over 300k iterations.
- Fixed en route, each with a RED repro: dead E209 builtin-arg check and
`int_to_text` missing from both types.ml builtin tables (both segfaulted
wovm), multi-file phantom double-report, emit_ctor's field temp clobbering
dst in tail position (pre-existing), warnings swallowed without an error.
- Two fenced VM builtins: `int_to_text` (13), `variant_tag` (14).
- 14+565 unit (was 14+401), corpus 71 (was 32) plain and under wovm_asan,
wovm-test + cli_smoke green. Log-watcher 307 -> 93 diagnostics (85 E101 /
4 E207 / 1 E208 / 3 W202); the 5 non-E101 residuals await Task 7 grammar.
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| .. | ||
| bin | ||
| src | ||
| test | ||
| dune-project | ||
| README.md | ||
compiler/ — the OCaml woc compiler
Lexer → parser → typechecker → ownership pass → bytecode emitter, for .wo. OCaml stdlib only (no Menhir, no ppx); dune is the build runner. Sibling of the C wovm bytecode VM (runtime/) — the two halves of the OOP track's spec (docs/superpowers/specs/2026-08-01-oop-compiler-vm-design.md) meet at plan 3, where woc's emitted .wob runs on wovm.
Stage: plan 3 (docs/plan/compiler/2026-08-01-wob-emit-e2e-single-binary.md) complete, Tasks 1–6 + 8 (Task 7, a parity harness against the Rust runtime, was deferred by explicit decision — the two stacks now diverge by design). .wo source compiles to .wob bytecode (--emit) and to a single self-contained executable (build) that runs wovm with no arguments and no repo-relative dependency. Milestone 1's acceptance gate — compile-time budget, the full conformance corpus under ASan, the single-binary smoke, both unit suites — is just oop-accept. Plan 2 (lexer through ownership pass) shipped first and is unchanged.
Requirements
OCaml 4.14.1, dune 3.14.0 — Ubuntu 24.04 apt packages (sudo apt install ocaml dune), the version floor. Confirm with ocaml -version / dune --version. No opam packages, no Menhir, no ppx — stdlib only.
Build, test
cd compiler && dune build # -> _build/default/bin/woc
cd compiler && dune runtest # test_diag unit checks + runner golden/CLI-smoke suite
just woc-build # same, from the repo root
just woc-test # same, from the repo root
WOC_BLESS=1 dune runtest (from compiler/) rewrites golden .expected files to match current output — use it once, by hand, to seed or intentionally update a fixture.
Running woc
woc <path> # compile (lex, parse, typecheck, ownership-check); nothing prints on success
woc --dump-tokens <path> # stdout: one line per lexed token
woc --dump-ast <path> # stdout: the declaration + body AST, indented
woc --dump-owner <path> # stdout: the ownership pass's four tables (moves, drops, rc, residual)
woc --dump-bc <path> # stdout: disassembled bytecode for every emitted method
woc --emit <path> -o <out.wob> # compile through to a .wob bytecode module, runnable by wovm
woc build <dir> -o <app> [--runtime <path>]
# compile + append the .wob image to a copy of wovm (default
# runtime/wovm, or --runtime) into one self-contained <app>
<path> is a single .wo file or a directory. A directory is discovered recursively for every .wo file under it — same contract as wo run (crates/rt/src/lib.rs::discover): dot-prefixed entries and target/data/node_modules are skipped, results are sorted by path. Every discovered file compiles as one program (declarations in one file resolve for bodies in another, regardless of discovery order); diagnostics from every file and every stage print sorted by (file, line, col). For multi-file --dump-* output, each file's dump is preceded by a === path === header line (compiler/src/dump.ml's file_header) — a single-file run never prints one.
Diagnostics render as file:line:col: severity CODE: message plus a source excerpt with a caret; every shipped code is cataloged in docs/plan/oop-vm/01-error-catalog.md. Exit codes: 0 clean compile, 1 diagnostics reported, 2 usage/IO failure.
Layout
src/— one module per stage:diag(diagnostics, collector, exit-code decision),token/lexer,ast/parser,types(typechecker),owner(MVS ownership pass),emit(bytecode emitter, consumesowner's four tables),disasm(bytecode disassembler, backs--dump-bc),dump(stable text dumps for all of the above)bin/— thewocexecutable: CLI parsing, file discovery, the multi-file/cross-file driver,--emit/buildoutputtest/—runner.ml(golden runner + CLI smoke) andtest_diag.ml(diag.ml unit checks);test/golden/<stage>/holds one-file-per-fixture goldens (tokens,ast,owner,owner-err,bc);test/fixtures/driver/holds the multi-file CLI-smoke fixtures (directory discovery, cross-file symbols, diagnostic ordering) that don't fit the one-.wo-file-per-fixture golden shape
Governing docs (all under docs/, not here — this file stays an orientation README): spec docs/superpowers/specs/2026-08-01-oop-compiler-vm-design.md; plans docs/plan/compiler/2026-08-01-woc-compiler-front.md and 2026-08-01-wob-emit-e2e-single-binary.md (+ architecture.md, nullable-types-implementation.md, 2026-08-01-haxe-parity-language.md in the same directory). Format contract: docs/plan/oop-vm/00-wob-format.md. Error catalog: docs/plan/oop-vm/01-error-catalog.md. Conformance corpus contract (fixture layout woc's golden output feeds into): docs/plan/oop-vm/02-corpus.md; source-language builtin surface woc accepts: docs/plan/oop-vm/08-builtin-surface.md. Runtime sibling: runtime/README.md.