cs half of the #77+#78 fused g-fold train (rob spec .ai/rob-gfold-spec.md
+ ENROLLMENT RULING 2026-06-05). NEITHER COMMIT FFs ALONE — G2 (wwstage
emit dispatch, #77) completes the train; until G2 lands, ww alias-global
ARRAY rows remain loud link-ERR by design (documented below).
Root: the let_* helper family was single-peel (`u = (t->kind==TY_NAMED)
? t->under : t`) — a 2-level alias chain (or ONE user alias over a named
struct) left u TY_NAMED, so let_collect never registered the global, no
DATA was emitted, and the let_islet-gated load paths fell through to the
frame-local path at offset 0: a silent saved-BP read (probe-verified: cs
emitted zero DATAW and zero main.g references for a2/st1/t2/sl2).
Converted to type_chase_named (6 helpers, per the enrollment ruling —
probes forced let_isstr/let_isslice in beyond the spec's enumerated 4;
non-severable, ruling banked in the spec file):
let_emit_size (:1164) consumers :1408 let_collect gate, :14889
emit_lets, :15196 let_pre_intern str-leg — all
top-level d->type
let_isstr (:1208) consumer :3894 N_IDENT global load gate
let_isslice (:1218) consumers :3894, :14987 emit_lets slice arm,
:15080 emit_defs loud-stop
let_isstruct (:1229) consumers :1432 def registry, :14923 8B-scalar
short-circuit gate, :14996/:15062 struct emit arms
let_isarray (:1240) consumers :1445 def registry, :14923,
:14975/:14997/:15071 array emit arms
let_isfloat (:1251) consumers :1507 def addressability, :3908
N_IDENT float load (non-local branch only — locals take
the off!=0 branch at :3793), :14891/:15052 float emit
All consumers sit on top-level-decl or non-local-ident paths; no local
consumer exists. Corpus census: zero >=2-NAMED-layer global decl types
anywhere in lib/selfhost/cmd (all named globals are depth-1: io.vtable,
memio.stream, errno, duration, floatinfo, encoding, ...) — conversion is
identity on the whole existing-green corpus; full byte-id invariant
holds (test-unit 287/287, sizelint clean).
Condition-3 members (ruling: "own inline peel on the routed path = same
family, enroll if it fixes at the same chase" — verified: every enrolled
probe row graduates at this chase, none elsewhere): the routed-to DATA
emitters re-peeled at entry and return-0'd into the silent skip path.
Converted the OUTER-type entry resolution only:
emit_struct_lit_bytes :14238, emit_struct_data :14363,
emit_array_lit_bytes :14401, emit_strarray_data :14618,
emit_array_data :14791, emit_slice_data :14830,
let_pre_intern array-leg :15131
ELEMENT-type peels in those helpers are untouched (different axis, out
of this fold). type_unwrap itself is NOT converted (#85, explicit OUT);
its two remaining consumers (:14711/:14902) are tuple-arm-only, behind
the checker reject filed as #86.
Probe matrix (banked /tmp/implG_probes.md + /tmp/implG/): 34 rows, both
stages. Post-G1: every cs alias-global row runs 0 — a2/a2o (the #78
silent saved-BP rows), st1/st2 (silent SEGV at one user alias level),
stlit/t2/sl2/d_a2/d_st2/tsa2 (silent-wrong), s2/s2o/f2/f2s/d_f2 (loud),
u1/tsa1/a1* (held green). All ww-green rows byte-id YES. ww array rows
stay loud link-ERR until G2 (`w6l: undefined reference to main.g`).
Controls + holds (plain globals, alias-ELEMENT el1, alias-slice sl1)
unchanged. OUT, filed: #86 (named-tuple global init, checker), #87
(plain tagged global, cs silent vs ww loud — not alias-family).
Hojun-Cho
00f71b9781