| // Copyright 2019 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package export |
| |
| import ( |
| "context" |
| |
| "golang.org/x/tools/internal/telemetry" |
| ) |
| |
| // Null returns an observer that does nothing. |
| func Null() Exporter { |
| return null{} |
| } |
| |
| type null struct{} |
| |
| func (null) StartSpan(context.Context, *telemetry.Span) {} |
| func (null) FinishSpan(context.Context, *telemetry.Span) {} |
| func (null) Log(context.Context, telemetry.Event) {} |
| func (null) Metric(context.Context, telemetry.MetricData) {} |
| func (null) Flush() {} |