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Vance IngallsandClaude Sonnet 4.6
b8fa4b5dd2
* refactor(core): swap studio-api read path from recast to acorn parser (T6e)
* fix(core,sdk): code-review findings — 5 correctness bugs + 2 cleanup
- gsapParserAcorn: top-level variable targets now resolved via program-scope
null-key fallback in lookupBindingFromAncestors (const el = querySelector...)
- gsapParserAcorn: fromTo guard requires args.length >= 3, preventing undefined
args[2]/args[3] access when fewer args supplied
- gsapWriterAcorn: remove fuzzing fallback in removeAnimationFromScript that
silently deleted the wrong animation (from→to ID conversion)
- gsapWriterAcorn: valueToCode guards NaN → "0" to avoid broken tween props;
safeKey regex aligned to ASCII-only (matching gsapSerialize)
- mutate: handleSetGsapTween now includes stagger in extras (was in addGsapTween
but missing from setGsapTween)
- apply-patches: script case now mirrors stylesheet — op=remove calls
setGsapScript("") instead of silently ignoring the patch
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* docs(core): add trust-model header to T6d parity suite
Documents the recast-baseline trust relationship and clarifies that
motionPath parity tests live in the Phase 3b commit (PR #1379) since
the acorn motionPath parser is also added there.
Addresses #1370 R1-N1 (Rames).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
@hyperframes/core
Types, parsers, generators, compiler, linter, runtime, and frame adapters for the Hyperframes video framework.
Install
npm install @hyperframes/core
Most users don't need to install core directly — the CLI, producer, and studio packages depend on it internally.
What's inside
| Module | Description |
|---|---|
| Types | TimelineElement, CompositionSpec, Asset, canvas dimensions, defaults |
| Parsers | parseHtml — extract timeline elements from HTML; parseGsapScript — parse GSAP animations |
| Generators | generateHyperframesHtml — produce valid Hyperframes HTML from a composition spec |
| Compiler | compileTimingAttrs — resolve data-start / data-duration into absolute times |
| Linter | lintHyperframeHtml — validate Hyperframes HTML (missing attributes, overlapping tracks, etc.) |
| Runtime | IIFE script injected into the browser — manages seek, media playback, and the window.__hf protocol |
| Frame Adapters | Pluggable animation drivers (GSAP, Lottie, CSS, or custom) |
Frame Adapters
A frame adapter tells the engine how to seek your animation to a specific frame:
import { createGSAPFrameAdapter } from "@hyperframes/core";
const adapter = createGSAPFrameAdapter({
getTimeline: () => gsap.timeline(),
compositionId: "my-video",
});
Implement FrameAdapter for custom animation runtimes:
import type { FrameAdapter } from "@hyperframes/core";
const myAdapter: FrameAdapter = {
id: "my-adapter",
getDurationFrames: () => 300,
seekFrame: (frame) => {
/* seek your animation */
},
};
Parsing and generating HTML
import { parseHtml, generateHyperframesHtml } from "@hyperframes/core";
const { elements, metadata } = parseHtml(htmlString);
const html = generateHyperframesHtml(spec);
Linting
import { lintHyperframeHtml } from "@hyperframes/core/lint";
const result = lintHyperframeHtml(htmlString);
// result.findings: { severity, message, elementId }[]
Documentation
Full documentation: hyperframes.heygen.com/packages/core
Related packages
@hyperframes/engine— rendering engine that drives the browser@hyperframes/producer— full render pipeline (capture + encode)hyperframes— CLI