// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package metric

import "go.opentelemetry.io/otel/api/core"

type sortedLabels []core.KeyValue

func (l *sortedLabels) Len() int {
	return len(*l)
}

func (l *sortedLabels) Swap(i, j int) {
	(*l)[i], (*l)[j] = (*l)[j], (*l)[i]
}

func (l *sortedLabels) Less(i, j int) bool {
	return (*l)[i].Key < (*l)[j].Key
}