shoney.arickathil
641a41e25c
- `woc` now emits `.wob` that `wovm` runs: emit.ml lowers the typed, owner-annotated AST (scope-stack registers with a >64 WO-E401 diagnostic, Lua-style call windows, ICALL by slot, dedup const pool, drop maps, line tables, implicit terminators); disasm.ml backs `--dump-bc` goldens. - Ownership lowering consumes the four owner tables verbatim; RESIDUAL is the only source of borrow ops, coalesced per operand. Review caught the emitter consuming only 2 of owner.ml's 4 residual producers — an assignment-anchored aliasing violation ran to exit 0 instead of trapping; fixed, plus a backstop raising WO-E404 for any residual region left unconsumed. - Conformance harness `scripts/oop-e2e.sh` (`just oop-e2e`): four fixture kinds with exact outcomes — byte-exact stdout, one WO-E### anchored on `error CODE:`, numeric trap code, gc trace. 25 fixtures incl. pricing-demo logic, the ownership suite, and DB_STUB's parse-but-trap. `tests/` un-ignored so the corpus is actually tracked. - `woc build` produces a self-contained binary: wovm copy + appended image + 20-byte trailer, self-exec via /proc/self/exe. Verified relocated outside the repo, argless, and against adversarial trailer corruption. - Milestone 1's five spec criteria all MET (`just oop-accept`). Criterion 3 closed by WO-E405 — the entry must return `Int`, since program mode already says its return value is the exit code — which deletes the leak class without adding return-type metadata to the format. `gc/held-cycle` retired: an externally-held cycle is not expressible in a post-exit pump. - New spec: inferred GC + incremental per-shard tri-color mark-sweep, retiring `@gc` and reference counting. Story gains iterations 7b (that work) and 9b (`@table`, relations, compiler-checked query); `.dev/reference` gains a sparse System.Linq checkout. Priority: 5→6→7 (log-watcher) then 7b, 8, 9, 9b.
21 lines
955 B
Text
21 lines
955 B
Text
-- Runtime trap: division by zero. DIV traps unconditionally on a zero
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-- divisor (docs/plan/oop-vm/08-builtin-surface.md, docs/plan/oop-vm/
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-- 00-wob-format.md) -- unprovable at compile time in general (the
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-- divisor is a runtime value; milestone-1 does no constant-folding
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-- either), so it traps rather than failing to compile.
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--
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-- Line assertion (harness's fixture.trap only carries the numeric code,
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-- not the line -- verified manually per this task's brief): wovm must
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-- report this trap at line 12, the `a / b` below. Proves line tables
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-- survive emission. The machine-enforced coverage for pc->line survival
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-- lives elsewhere, not in this corpus fixture: compiler/test/golden/bc's
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-- goldens pin the emitted line table, and runtime/test/test_vm.c's
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-- test_div_zero_traps_with_line asserts wovm reports the exact line for
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-- this same DIV0 case.
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fn divide(a: Int, b: Int) -> Int {
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return a / b
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}
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fn main() {
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print_int(divide(10, 0))
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}
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