Hojun-Cho c4347499ee cstage+selfhost+test: fix (*p).f silent drop in N_DOT lhs (read+write) ...

Pre-existing landmine surfaced by #5 (whole-STRUCT N_ASSIGN). Both
stages' N_DOT dispatch gated on `lhs->lhs->kind == N_IDENT`; the
parser produces N_UN(STAR, IDENT(p)) for `(*p).f`, so both sides fell
off:
  - Write side (cgassign N_DOT base): emitted nothing, store dropped.
  - Read side (case N_DOT pointer-auto-deref): cgexpr derefed the
    pointer as a scalar, AX = first qword of struct, field offset
    dropped.

Fix: retarget base / dot_lhs to the inner IDENT when shape is
N_UN(STAR, IDENT). The existing via_ptr branch fires identically to
`p.f`. v1 scope is bare-IDENT inner only; `(*expr).f` (non-IDENT
pointer expression) is tracked separately as task #19.

702 covers 7 rows: write_i64/i32/str, read_i64/i32/str_len, roundtrip

2026-05-15 18:13:02 +09:00

8.9 KiB

Raw Blame History

View Raw