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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}
- }
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