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gitea/vendor/go.opentelemetry.io/otel/metric/metric_noop.go

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// 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/metric"
import (
"context"
"go.opentelemetry.io/otel/label"
"go.opentelemetry.io/otel/metric/number"
)
type NoopMeterProvider struct{}
type noopInstrument struct{}
type noopBoundInstrument struct{}
type NoopSync struct{ noopInstrument }
type NoopAsync struct{ noopInstrument }
var _ MeterProvider = NoopMeterProvider{}
var _ SyncImpl = NoopSync{}
var _ BoundSyncImpl = noopBoundInstrument{}
var _ AsyncImpl = NoopAsync{}
func (NoopMeterProvider) Meter(_ string, _ ...MeterOption) Meter {
return Meter{}
}
func (noopInstrument) Implementation() interface{} {
return nil
}
func (noopInstrument) Descriptor() Descriptor {
return Descriptor{}
}
func (noopBoundInstrument) RecordOne(context.Context, number.Number) {
}
func (noopBoundInstrument) Unbind() {
}
func (NoopSync) Bind([]label.KeyValue) BoundSyncImpl {
return noopBoundInstrument{}
}
func (NoopSync) RecordOne(context.Context, number.Number, []label.KeyValue) {
}