}

// Sync notifies the generator of an EventSync event.
func (g *procRangeGenerator) Sync() {
	g.seenSync = true
}

// ProcRange implements a handler for EventRange* events whose Scope.Kind is ResourceProc.
// It expects ev to be one such event.
func (g *procRangeGenerator) ProcRange(ctx *traceContext, ev *trace.Event) {
	if g.ranges == nil {
		g.ranges = make(map[trace.Range]activeRange)
	}
	r := ev.Range()