Each limitations partial held its whole text on one line (map-and-set.mdx
was a single 1,080-character line), so any two edits to the same partial
conflicted. The partials now put one sentence per line, with a bullet's
continuation lines indented two spaces. Markdown joins the lines, so the
rendered pages are unchanged.
scripts/limitations-partials.mjs reads a labeled bullet's indented
continuation lines as part of the bullet when it splits and joins the page,
and AGENTS.md states the convention.
T10 and T12 of the zero-cost compatibility plan, plus the maintainer
decisions:
- Programs that name Temporal type-check against TS 7's temporal lib
(added only for them) and lower to Node 24's answers: typeof is
"undefined", globalThis.Temporal is undefined, other uses throw
ReferenceError at the root read.
- node:v8 is importable; getHeapStatistics answers allocator-derived
figures in Node's shape; other members fence with the by-design reason.
vm's refusal says why.
- node:stream/web exports the web stream globals themselves.
- node:dns/promises and dns.promises: lookup and lookupService as
promises, in the link-gated scr_dns_promises.c unit.
- eval and the Function constructor throw Node's EvalError under
--disallow-code-generation-from-strings; the corpus harness runs the
Node oracle with that flag for `// @disallow-code-generation`.
- graceful-fs is served as node:fs.
Every new lowering replaces a refusal, and the new runtime code links only
when used, so other programs compile to identical bytes (zero-cost gate).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- dns.lookup(hostname, callback), lookup(hostname, family, callback)
and lookup(hostname, options, callback) with family (0/4/6, 'IPv4',
'IPv6'), all, order and verbatim, validated with Node's messages.
getaddrinfo answers any family, ordered verbatim or one family first;
literal addresses answer on the next tick, an empty hostname gives
Node's null answer and DEP0118 warning, and failures carry code,
errno, syscall and hostname.
- dns.lookupService(address, port, callback) checks the address and
port as Node does and answers getnameinfo's host and service.
- dns.getServers() lists the nameservers in /etc/resolv.conf, and
getDefaultResultOrder/setDefaultResultOrder keep the default order
('verbatim').
- A typed callback receives "" and NaN (or []) after a failure, where
Node passes undefined; the limitations page says so.
Corpus 5648-5650 cover each case; the options-record diagnostics no longer
list the all and hints options as refused.
Chris Tate