Function buildDiffSectionRowPlan

src/ui/diff/diffSectionRowPlan.ts:47–84

({
  expandedKeys = EMPTY_EXPANDED_GAP_KEYS,
  file,
  highlightedDiff = null,
  layout,
  showHunkHeaders,
  sourceLineSpans,
  sourceStatus,
  theme,
  visibleAgentNotes = EMPTY_VISIBLE_AGENT_NOTES,
}: BuildDiffSectionRowPlanOptions)

/** Build the shared file-level diff plan consumed by rendering and geometry measurement. */
export function buildDiffSectionRowPlan({
  expandedKeys = EMPTY_EXPANDED_GAP_KEYS,
  file,
  highlightedDiff = null,
  layout,
  showHunkHeaders,
  sourceLineSpans,
  sourceStatus,
  theme,
  visibleAgentNotes = EMPTY_VISIBLE_AGENT_NOTES,
}: BuildDiffSectionRowPlanOptions): DiffSectionRowPlan {
  if (!file) {
    return {
      lineNumberDigits: 1,
      plannedRows: [],
    };
  }

  const baseRows = buildBaseRows(file, layout, highlightedDiff, theme);
  const expansionSide = file.metadata.type === "deleted" ? "old" : "new";
  const rows = expandCollapsedRows(baseRows, {
    layout,
    expandedKeys,
    sourceLineSpans,
    sourceStatus,
    side: expansionSide,
  });

  return {
    lineNumberDigits: String(findMaxLineNumberInRows(rows, findMaxLineNumber(file))).length,
    plannedRows: buildReviewRenderPlan({
      fileId: file.id,
      rows,
      showHunkHeaders,
      visibleAgentNotes,
    }),
  };
}