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absorbed/superseded.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.
30 lines
1.3 KiB
Plaintext
30 lines
1.3 KiB
Plaintext
// E6b-R — own-wins-over-flat at the NEW use surfaces route-all funnels through the
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// source-aware engine. `main` flat-imports `dep.sx` (which authors `Box { a }`) AND
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// authors its OWN `Box { m }`; the field sets are DISJOINT, so the observable is
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// field access: `.m` typechecks only against main's `Box`, `.a` only against dep's.
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//
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// `WrapU` is authored only by `main`, so its union field type `Box` resolves at
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// registration (`registerUnionDecl` → the source-aware body builder, E6b-R C1) to
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// MAIN's `Box`. Accessing `w.b.m` therefore typechecks, while `dep_box` uses dep's
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// DISTINCT `Box { a }`.
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//
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// Fail-before (pre-E6b-R): `registerUnionDecl` built the union body through the
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// stateless `type_bridge.buildUnionInfo`, whose `findByName` short-circuit bound
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// the global last-wins `Box`. If dep's `Box { a }` won the slot, `WrapU.b` was
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// dep's `Box` and `w.b.m` was a hard "field not found" — silently wrong nominal.
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// Pass-after: the union field is main's own `Box`, `w.b.m` resolves, exit 0.
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#import "modules/std.sx";
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#import "0816-route-all-new-surfaces-own-wins/dep.sx";
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Box :: struct { m: s32; }
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WrapU :: union { b: Box; n: s32; }
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main :: () -> s32 {
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w : WrapU = ---;
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w.b.m = 5;
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print("own={} dep={}\n", w.b.m, dep_box());
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0
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}
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