Follow the upstream 2026-08 rename wave and unbreak the sync pipeline

[oblomov-dev]

All three nightly pipelines have been red since 2026-07-30, so core/ stopped moving — and with it the published CAP app. update_cap downstream stayed green the whole time because it kept mirroring an unchanged core and reported "app unchanged", which is why nothing looked broken.

Three independent breaks, all fixed here.

1. transpile_abap2ui5 — three constructs produced JS that does not parse

Upstream construct	Was emitted	Now
TRY … CLEANUP … ENDTRY	try { with no catch/finally	catch-and-rethrow, or the else branch of the multi-CATCH chain when the TRY has handlers
REF #( tab[ … ] OPTIONAL )	(… optional)	the same lowering VALUE #( ) already had
DEFAULT 1 in an interface method	z2ui5_if_client=>1	literals are no longer qualified with the interface

2. mirror_samples cloned a branch that no longer exists

abap2UI5/samples deleted its cloud branch on 2026-08-12 — ABAP Cloud systems install main itself now. The mirror follows main and skips the two packages upstream itself strips from its published build (00/97 experimental, 00/98 testing).

3. build_core — the framework layer was renamed underneath the port

Upstream renamed z2ui5_cl_core_* → z2ui5_cl_ui5_*, z2ui5_cl_a2ui5_* → z2ui5_cl_ui5_util_*, z2ui5_cl_app_*_js → z2ui5_cl_ui5f_* and moved the shipped apps into 01/04, while the hand-ported port layer kept the old names. The transpiler stopped recognising them as hand-ported and filled in raw transpiles beside orphaned ports.

The 47 hand-ports follow the rename (git mv, so the diff stays reviewable), and everything that keys on those names follows them: the package exports map, the transpiler's require resolution, the jest module mapper, the app-lookup search paths and the web registry. z2ui5_cl_http_handler stays reachable as a re-export — upstream keeps the class as a compat subclass, and the entry point is a service function here, which an INHERITING FROM transpile cannot extend.

Transpiler fixes the renamed classes needed to actually run

The new z2ui5_cl_ui5_view_builder is transpiled (not hand-ported) and used by 102 samples, so its gaps were load-bearing:

• table/structure aware IS INITIAL — !x is wrong for an empty table (truthy in JS) and for an all-initial structure; now z2ui5_cl_util.abap_is_initial( )
• PREFERRED PARAMETER call style for the view builder — view->ele( \Shell` )` is positional; the existing pop-factory shim now also wraps prototype methods
• offset/length access on an attribute — cls=>const(1) is a substring, not a call (abaplint types the hugging ( distinctly, same rule ABAP parses by)
• INITIAL values for unpassed OPTIONAL parameters — except where the body tests IS SUPPLIED, which must stay undefined
• builtins: concat_lines_of (positional), shift_left/shift_right, substring_after/substring_before

The client hand-port gains get_event( ), the new interface shortcut 14 samples call.

Also: the browser bundle has been broken since async_hooks entered the user-exit class

adapters/web now shims AsyncLocalStorage (a page answers one roundtrip at a time, so a single current-store slot is exact). This surfaced only now because the adapter smoke tests skip when the adapter is not installed.

Baselines

Both known-failure baselines are rebased onto the new names, reasons carried over where an entry maps 1:1.

• apps-smoke: 8 of 104 — same failures as the old 13 of 208 wherever the sample survived; no new failure category.
• upstream-units: 25 → 128 entries. The new ones are honest port gaps, not noise: upstream API the JS port does not implement yet (get_event_client_json, session_merge) and tests asserting on abap-internal state the idiomatic port models differently. Worth a follow-up, out of scope here.

The smoke sanity floor drops from 150 to 80 — the catalog is ~105 apps now.

Verification

npm test 230/230 · ratchet-update --check clean · npm run lint 0 errors · samples smoke 96/104.

The Playwright smoke of the web adapter needs the OpenUI5 CDN, which this sandbox cannot reach — CI runs it.

Merge first — builder-cap2UI5 mirrors this core.

🤖 Generated with Claude Code

https://claude.ai/code/session_01VHRfng5K6Yc8c4j7hBytXo

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