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// Copyright 2018, OpenCensus 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 metricdata
// LabelValue represents the value of a label.
// The zero value represents a missing label value, which may be treated
// differently to an empty string value by some back ends.
type LabelValue struct {
Value string // string value of the label
Present bool // flag that indicated whether a value is present or not
}
// NewLabelValue creates a new non-nil LabelValue that represents the given string.
func NewLabelValue(val string) LabelValue {
return LabelValue{Value: val, Present: true}
}