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Vance Ingalls
c1b8815cb2
Closes gaps surfaced by pacific#30298 (hyperframes layer panel), where consumer
code had to hand-roll fixes for things the SDK/core already solve or nearly solve:
- getRootElements(): getElements() flattens the tree, so every descendant also
appears as its own top-level entry. buildRoots() already computes true roots
internally; this exposes it directly instead of making consumers re-derive
roots by filtering out descendant ids.
- Export isNewHostBoundary + bareId from @hyperframes/sdk: both already existed
internally (engine/model.ts) but weren't exported, so consumers were
duplicating sub-composition-boundary detection and scoped-id-to-DOM-leaf
conversion by hand.
- Export stripEmbeddedRuntimeScripts + RUNTIME_BOOTSTRAP_ATTR from
@hyperframes/core, and wire serialize({ stripRuntime: true }) on the SDK
session: a proper tokenizing implementation already existed in
compiler/htmlDocument.ts (handles more runtime-script marker variants than a
naive regex), just never exported. The SDK itself imports these via narrow
subpaths (./runtime/start-expression, ./compiler/html-document) rather than
the wide ./compiler barrel, matching the SDK's existing import convention and
avoiding pulling Node-only compiler code (fs/path) into browser bundles.
- Fix getElementTimings(): data-start can be a relative-reference expression
("intro", "intro + 2" — see parseStartExpression's grammar), not just an
absolute number. The old code did a raw parseFloat() on it, which silently
resolved any reference expression to 0. Now resolves references recursively
against the target element's own resolved start + duration, Node-safe (no
live GSAP timeline needed for this case).
14 new tests (session.timings.test.ts, session.subcomp.test.ts). Full sdk
suite: 417/417 passing. Full workspace build (incl. studio) verified clean.