Function logSpanEnd

packages/core/src/tracing/logSpans.ts:45–55

(span: Span)

 * Print a log message for an ended span.
 */
export function logSpanEnd(span: Span): void {
  if (!DEBUG_BUILD) return;

  const { description = '< unknown name >', op = '< unknown op >' } = spanToJSON(span);
  const { spanId } = span.spanContext();
  const rootSpan = getRootSpan(span);
  const isRootSpan = rootSpan === span;

  const msg = `[Tracing] Finishing "${op}" ${isRootSpan ? 'root ' : ''}span "${description}" with ID ${spanId}`;
  debug.log(msg);
}