1ce3a4e9e0
S0 of the ratified Fork C plan (zero-legacy name-resolution redesign, S0→S6).
Pure setup/documentation: NO production code change, NO behavior change.
Single-author output byte-identical to wt-stdlib-base by construction.
Deliverables under docs/fork-c/ (docs/, not current/, because current/ is
gitignored and the contract must be committed):
S0.1 — byte-baseline + commit-discipline: the committed examples/expected/*
snapshots are the single-author byte-identity reference; the zero-diff repro is
`zig build && zig build test && bash tests/run_examples.sh`. Resolver-target set
explicitly excluded + listed. Commit-classification rule: mirror | consumer-cutover | deletion.
S0.2 — E6b disposition + two-corpus partition: transitional E6b src NOT merged
(grep-clean: no resolveRegistrationSigTypeInSource / sig_registration_mode /
e6br_gate.test.zig on baseline). Harvested 0811–0829 trees + goldens (never the
src), empirically partitioned by running each through the base compiler vs the
E6b target:
- baseline-green (mirror-equivalence): 0795–0798 (merged) + 0823, 0828 — given
examples/expected/ markers, locked into the S0 baseline.
- resolver-target (known-wrong old behavior): 0811–0822, 0824–0827, 0829 + the
re-filed E6BR-5 nested-pattern regression — a listed xfail harness under
tests/resolver-target/ (manifest + TARGET goldens, NO active marker), flips
active+green at S3.9. 0811/0829 noted as old-selector-wrong on the E6b-unmerged
base; E6BR-5 subsumed by the whole-AST resolver, NOT an E6b attempt-6.
S0.3 — A–E6 reuse/delete ledger: every load-bearing A–E6 artifact mapped REUSED
(Fork C home) or DELETED/TRANSITIONAL (S3/S6 phase); E6c/d/e dropped, F/H/I/K
absorbed/superseded.
Gate over the baseline-green corpus: zig build + zig build test (LSP corpus sweep
574 files, no crash) + bash tests/run_examples.sh (540 passed, 0 failed) all exit 0.
Fork C — setup contract (S0)
Zero-legacy name-resolution redesign (S0→S6), replacing E6c–K. This directory is the
committed S0 contract the remaining 26 steps (S1→S6) execute against. It is pure
setup/documentation — S0 introduces no production code change and no behavior
change; single-author output is byte-identical to wt-stdlib-base by construction.
Authority: runs/stdlib/design/fork-c-deepdive/reconciled.md (§5 by-construction
audit, §6 staged roadmap + deletion lists, §8 fold-in) and
runs/stdlib/design/fork-c-plan/planspec-r3.json (the S0.1/S0.2/S0.3 intent +
acceptance, Adi-confirmed — they govern).
Doc-area decision
Deliverables live under docs/fork-c/, NOT current/fork-c/. Reason: current/
is gitignored in this repo (.gitignore → current/), so a new current/fork-c/
tree would not be committed; the S0 contract must be committed. docs/ is tracked.
Baseline
- Base:
wt-stdlib-base @ 1f755284d98c6e8ebba953045c06e35d8cbe6278(A–E6a merged). - E6b:
flow/stdlib/E6b @ af737b0— PAUSED, unmerged, all transitional, destined for S3/S6 deletion. Its semantics goldens are harvested; its src is never merged. - This branch:
flow/stdlib/S0(branched from the base; S0 HEAD == base).
Contents
| file | sub-step | what |
|---|---|---|
S0.1-byte-baseline-and-commit-discipline.md |
S0.1 | the byte-identity reference + the zero-diff reproduction command + resolver-target exclusion + the mirror | consumer-cutover | deletion commit-classification discipline |
S0.2-e6b-disposition-and-two-corpus-partition.md |
S0.2 | E6b src not merged (grep-clean) + the harvested corpus partitioned baseline-green vs resolver-target + 0811/0829 placement + the E6BR-5 re-file + the mirror/flip statement |
S0.3-reuse-delete-ledger.md |
S0.3 | every load-bearing A–E6 artifact mapped REUSED (Fork C home) or DELETED/TRANSITIONAL (S3/S6 phase); E6c/d/e dropped, F/H/I/K absorbed/superseded |
../../tests/resolver-target/ |
S0.2 | the listed resolver-target harness: manifest.md (18 cases), expected/ TARGET goldens, the E6BR-5 reproducer under cases/, and run_resolver_target.sh (xfail runner — NOT part of the gate) |
The two-corpus law (the one thing the next 26 steps must never conflate)
- BASELINE-GREEN / mirror-equivalence corpus — tests where the old selector is already correct today (A–E6a merged + the 6 harvested baseline-green cases + FFI 12xx–14xx + the LSP smoke). Stays green and single-author byte-identical at every step S0→S6, and is the S2 assert-only Debug mirror's only oracle.
- RESOLVER-TARGET corpus — harvested goldens that encode known-wrong old behavior (silent resolve / under-diagnose / wrong author / own-wins-fails) + the E6BR-5 regression. Held inactive/xfail (listed, never silently dropped) from S0 through S3.8, then flips to active + green at S3.9 against its TARGET output — never against the old selectors (a wrong oracle for it on the E6b-unmerged base).
Gate (this branch)
export PATH="$HOME/.zvm/bin:$PATH"
zig build && zig build test && bash tests/run_examples.sh # exit 0 over the baseline-green corpus
Since S0 changes no production code, single-author output is byte-identical by
construction. The resolver-target xfail diagnostic
(bash tests/resolver-target/run_resolver_target.sh) is separate and not part of the
gate.