CharlesKWON 327f75bb45 fix(parser): DATA x, y, z registers every name — not just the first ...

Harbour's `DATA name1, name2, name3` (and `VAR`, `CLASSDATA`)
should declare every listed field. Five's parseDataDecl instead
returned a single DataDecl for the first name and silently dropped
the rest — the comma branch just consumed the identifier without
producing a new decl. Surfaced by the OPERATOR overloading test
(/tmp/test_operator.prg originally had `DATA x, y` for a Vec2
class) where later `::y` access panicked with "unknown method y".

Change the signature to `[]*ast.DataDecl` and rewrite the loop so
each comma closes the current decl and starts a fresh one. AS /
INIT / qualifier runs still attach to the most recent name, so:

  DATA x, y, z                  → three decls, no init
  DATA x INIT 10, y, z INIT 0   → init attaches to preceding name
  DATA cName AS CHARACTER       → typed single decl

All seven class-body call sites flatten the slice into `members`.

Verified with /tmp/test_multidata.prg (`DATA x, y, z` + mixed
`DATA label INIT "origin", count INIT 0`) and the OPERATOR test
which now passes with the original `DATA x, y` form restored.

FiveSql2 43/43, Harbour compat 56/56, Go test ALL PASS.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-04-18 16:17:32 +09:00

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