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opentelemetry-go/api/trace/noop_trace.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 trace
import (
"context"
)
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type NoopTracer struct{}
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var _ Tracer = NoopTracer{}
// Start starts a noop span.
func (NoopTracer) Start(ctx context.Context, name string, opts ...StartOption) (context.Context, Span) {
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span := NoopSpan{}
return ContextWithSpan(ctx, span), span
}