The next three blockers of the `Addon_Ports` pair, each measured with `addon_harness` before
and after rather than picked off a list.
**`RegisterUnitEvent(event, unit1 [, unit2])`** — Cinematic's load blocker, and
`docs/ADDON_COMPAT.md` already had it on the "plausible and untraced" line. The registration
is the stock one: same `event_to_frames` list, same registration order, and
`Model::frame_unit_events` holds the units per frame per event. `tick.rs`'s walk skips a
frame whose row for this event does not name `arg1`; the map is empty on an install with no
such addon and the walk tests `is_empty()` first, so the common path costs one load.
All three unregister paths drop the row, including the one that is easy to miss: a plain
`RegisterEvent` after a unit register **widens** the registration back, as upstream's does —
the frame keeps its place and loses the filter. A row surviving an unregister/re-register
cycle would swallow that event forever, so the test walks the whole cycle.
`Cinematic/Frames.lua:2611` registers `UNIT_AURA` for `"player"` at file scope, so the nil
method stopped the file dead.
**`SetFixedFrameStrata`/`SetFixedFrameLevel`** are no-ops, and that is the honest answer
rather than a stub: 9.0 added them to tell the *frame manager* to stop re-deciding a frame's
strata and level, and this client has no such manager — both are whatever the setters last
wrote and nothing else rewrites them, so the guarantee the caller asks for already holds.
Ace3 calls both unguarded (`AceConfigDialog-3.0.lua:575-576`).
**`SetWordWrap`/`CanWordWrap`** is 3.x's whether-to-wrap switch; 1.12's `SetNonSpaceWrap` is
a different question (where a wrap may fall, not whether one happens). **Stored, not
applied**, on the footing `SetSpacing` and `non_space_wrap` already set in `types.rs`: the
text layout wraps to the declared width unconditionally and has no one-line-and-clip mode for
the flag to drive, so honouring it would mean inventing a layout mode. Kept because the pair
must round-trip and because the missing *setter* is what costs —
`Cinematic/Options.lua:4130` calls it on a label and aborted the options panel there.
All four are registered in `widget_surface.rs`'s `ALLOWED_BEYOND` with their call sites. The
first `RegisterUnitEvent` row said "Frame" and the wall rejected it: event registration lives
on the one shared frame method table, which is where 1.12 keeps `RegisterEvent` too, so the
two are registered alike on all twenty frame kinds or neither is.
Movement: Cinematic's load `Frames.lua:2611` → `CameraWheel.lua:243`, session
`Options.lua:4130` → clear; openmap `AceConfigDialog:573` → `:575`.
benilla-ui 2077 passed, 0 failed. Full chain green.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SgstFWtn1RxEJ5kVrpgYwn
gromandClaude Opus 5
e731a77a42