FAILURE MAP
← Case archive

FA-8310 / Viewport layout / Member archive

Virtualized row visibility: Variable row heights are not accumulated into layout positions · case 05

Variable row heights are not accumulated into layout positions.

Member previewVariant 5 · 3 implementations · 12 checks per implementation

Case contract

Rows overlap a half-open viewport using cumulative measured heights; overscan expands both sides and clamps to valid row indices.

Why this case matters

A deterministic model of virtualized row visibility; this isolates one interface invariant without requiring a browser.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixtureActualExpectedOutcome
top edge[][1]Failed

MEMBER ARCHIVE

The complete case is available to members.

This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

Member access is invitation-based. Sign in with your invited account to inspect the sources.

Sign in to the archive ↗