Function collectSummaries

lib/aria.js:192–200

(nodes)

// Walk tree, emit one summary string per meaningful interactive node.
function collectSummaries(nodes) {
  return nodes.flatMap(node => {
    const fromChildren = collectSummaries(node.children)
    if (!INTERACTIVE_ROLES.has(node.role)) return fromChildren
    const summary = formatNode(node)
    if (summary === node.role) return fromChildren  // skip empty unnamed interactive nodes
    return [summary, ...fromChildren]
  })
}

function countBy(items) {
  return items.reduce((map, item) => {