func (enh *EvalNodeHelper) dropMetricName(l labels.Labels) labels.Labels {
	if enh.dmn == nil {
		enh.dmn = make(map[uint64]labels.Labels, len(enh.out))
	}
	h := l.Hash()
	ret, ok := enh.dmn[h]
	if ok {
		return ret
	}
	ret = dropMetricName(l)
	enh.dmn[h] = ret
	return ret
}
func (enh *EvalNodeHelper) dropMetricName(l labels.Labels) labels.Labels {
	if enh.dmn == nil {
		enh.dmn = make(map[uint64]labels.Labels, len(enh.out))
	}
	h := l.Hash()
	ret, ok := enh.dmn[h]
	if ok {
		return ret
	}
	ret = dropMetricName(l)
	enh.dmn[h] = ret
	return ret
}
func ( enh * EvalNodeHelper ) dropMetricName ( l labels . Labels ) labels . Labels { if enh . dmn == nil { enh . dmn = make ( map [ uint64 ] labels . Labels , len ( enh . out ) ) } h := l . Hash ( ) ret , ok := enh . dmn [ h ] if ok { return ret } ret = dropMetricName ( l ) enh . dmn [ h ] = ret return ret }
// dropMetricName is a cached version of dropMetricName.
dropMetricName is a cached version of dropMetricName .