Hojun-Cho
9bd0d8bc81
Promote type_chase_named from cmd/w6c/cgen.c (static) to cmd/wcc/type.c (exported via ww.h) and re-route every checker single-NAMED-peel through it: check.c's ~28 inline ternaries + 3 ad-hoc loops, type.c's assignability/untyped/borrow/opaque peels. type_eq's nominal identity (check.c:114) and the resolve machinery guards stay untouched. The re-route IS the acceptance align-up — cstage loud-rejected alias shapes wwstage accepts AND runs Hare-right (F0 census, harec dealiases at every consumer): - #54 binop alias-vs-base: unify_arith gains the harec type_promote arm (ref/harec/src/check.c:1083-1105) — one-sided alias + dealias-equal promotes to the ALIAS side; alias-vs-alias stays rejected. - alias-cond family: if/for/&&/||/! chase-then-bool (harec check.c:2141/2515/3229/3572). assert stays loud (F0 2a symmetric). - #70 field access through 2-level alias chains (ken c3_chain3). - assignability through the full chain (harec types.c:989-996 dealias-both): return/init/assign legs, F0 8b idx/slice walls. - alias-of-ptr deref (harec types.c:19-22 type_dereference). The widening reaches cgen arms whose own single peels then misbehaved — both classes are closed IN THIS COMMIT so no intermediate state ships a loud->silent flip (bisect no-silent invariant): - index family: the 8b acceptance hit ptr-load base + esz=1 (SEGV / prefix-luck) — idx_eff + the N_INDEX read / index-write / &base[i] / N_SLICE (expr + call-arg) / N_FORRANGE / aggarg_srcaddr-index / castsrcprim-dot / match-field base classifies chase. - kind classifiers (ken #61-root-verify v3 find): a 2-level f64 alias param reached cg_isfloat's single peel and classified INT — silent wrong-register-class. cg_isfloat / type_isf32 / fld_isfloat / type_isstr / type_isslice chase. ken's v3 row is pinned with credit. Bootstrap asm is byte-identical before/after (w6c on every main.combined.ww cmp-equal vs a pristine738d7f4scratch; 989 lib_byteid pins unchanged): 2-level chains were checker-walled pre-F1, so no previously-accepted program changes shape. test: 944_alias_accept_run (20 rows): acceptance graduations pinned runtime + byte-id both stages; idx/slice/range/slice-param rows cs-only until the wwstage #60 esz family lands (F2 batch 1); cs-only harec-parity loud pin for alias-vs-alias binop; assert stays-loud row; ken-v3 + f64/str/slice kind rows. Mutation-checked at738d7f4. reviewer-F1 fold — the same invariant, outside the F0 census: this commit ADMITS 2+-level alias slice/str/aggregate types in STRUCT FIELD position, therefore this commit must keep them correct-or-loud. The cgen FIELD-TYPE gates single-peeled, so the slice/str 3-word arms fell to word0-only scalar tails — accept-and-corrupt, ww correct, every shape loud at the pristine base. Chased (probe-proven, byte-id graduations): single-dot field store + via-ptr twin, struct-lit fill, chained store-walk LEAF (the #71 walk chases hops, not leaves), chained-ptr-field store, single-dot / via-ptr / chained-walk field reads (clobber-probed — word0 reads luck-passed on stale BX/CX). The six unprobed sibling gates (indexed-elem store/read, ptr-chain read, heap fill, tuple-elem read, static emit) hard-error via fld_alias_tripwire on a 2+-level alias over an aggregate base, citing task #73 (the family's scheduled chase); <=1-level and scalar bases never fire — zero behavior change for any pre-#5-legal program (five selfhost mains cmp-identical vs the pristine738d7f4scratch). test: 944 +11 rows (9 K_RUN byte-id, wholeread K_RUN_CS [#60 ww half + pre-existing 1-level read-spine divergence], #73 tripwire K_BUILDERR_CS pin); 1-level controls per gate in /tmp/revF1.