}
		case trace.EventLog:
			g.Log(ctx, ev)
		}
	}
	for i, task := range opts.tasks {
		emitTask(ctx, task, i)
		if opts.mode&traceviewer.ModeGoroutineOriented != 0 {
			for _, region := range task.Regions {
				emitRegion(ctx, region)
			}
		}
	}
	g.Finish(ctx)
}

// emitTask emits information about a task into the trace viewer's event stream.
//