Flip the soft-default to a hard "missing package clause" error symmetrically in
both stages (cmd/wcc/parse.c + lib/ww/syntax/parse.ww): the first real decl of a
primary section with empty pathmod/resetmod and no seen clause is now rejected.
Closes the documented soft-default divergence (the 63-wrapper carve-out).
The gate flip can't be split from the migration it breaks, so this is one atomic
commit: ~80 test/wcc wrappers gain `package main;` via a shared wwtestpkg.h
helper, 6 data fixtures plus 17 asm-grep assertions update for the bare->main.<leaf>
root-helper mangle shift, and rt/ declares `package rt;` with @symbol pinning the
bare rt_ensure/rt_malloc linker names.
Root mangling narrows: the executable entry `main` stays bare (existing
carve-out), but root helper symbols become main.X. The #84 cluster is rewritten
to assert main.run distinct from aa.run/test.run; its cgen fix and bare machinery
are retained — still load-bearing for package-less module-reset deps. New
table-driven test 782_strict_package.c (6 rows, both stages).
Retiring //ww:module-reset is deferred to #24b: it is load-bearing (clears the
.wwi pathmod so the body's package clause asserts), not a vestige; fusing its
removal here would be a silent mismatch.
All byte-id gates green; full make test reports "all 335 tests passed".
The driver flip moves build artifacts from next-to-source <stem>.s to a
.sepwork/ scratch dir. 29 Pattern-B gates now build `ww build --sep -o <stem>`
and read <stem>.sepwork/__root.s (multi-package gates concat all
<stem>.sepwork/*.s, since cross-package labels live in per-package .s).
All intermediates redirect to /tmp (WW_PKGCACHE + -o), so the corpus runs
parallel-safe with no source-tree pollution. Tests pass now (--sep is live)
and survive the flip.
915 additionally retargeted off strconv's PRIVATE left_shift_table (a let,
not export) — which separate compilation correctly hides — onto a test-local
package that exports its own probe table (#96). The combined path only linked
it via a single-unit private leak; encapsulation is now honored under sep.
Test-only; all 5 *_ww binaries HOLD. 989_m1mangle_run deferred (blocked by
#99, imported-package fn main mangling under sep).
Pre-fix the wwstage checker bailed asserttyped on the N_CALL whose
callee was N_UN TK_STAR over a *fn — selfhost/cmd/wcc/check.ww
exprtype's N_CALL arm only resolved IDENT/DOT-named callees and
early-returned nil for any other shape, leaving e.type_ unstamped
so the post-checker invariant fired. cstage worked because cexpr
recurses on the callee — TK_STAR's unop arm returns t->sub which
IS the TY_FN, no name path needed.
Fix: replace the `if (nm.len == 0) return nil` early-bail with
`if (nm.len > 0) { name-lookup }`, so non-named callees fall
through to the existing fn-VALUE fallback below (peel TPTR /
dealias to TFN / stamp the result type). Mirrors harec
check_autodereference at ref/harec/src/check.c:1566. cgen post
-#180+#185 already lowers the deref-call correctly, so lifting
the asserttyped bail is silent-SIGSEGV-safe per drew + ken.
Combined.ww regenerated for selfhost/cmd/{w6c,wwdump}/main
.combined.ww per #110 freshness gate.
Probe: test/wcc/766_star_fn_deref_call.c, 5 rows table-driven —
minimal / branched-callee / alias-chain / fn-with-args / fn
-tuple-return. Gate flip from 765: every row now gates BOTH
stages — cstage runtime, wwstage runtime, AND cs.s == ww.s byte
-id. This is the runtime coverage 765 deferred plus the symmetry
gate that proves both stages emit identical asm for the deref
-call shape. Closes the full c-cluster (#180 + #185 + #181 all 3
commits working together end-to-end).
