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go/internal/telemetry/export/null.go
Ian Cottrell 5b08f89bfc internal/telemetry: clean up the exporter api
this shuffles things so there a single exporter API rather than an observer
It also removes most of the globals.
per telemetry type.

Change-Id: Iaa82abe2ded1fff9df8e067ed4a55bcbd9d9591f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190405
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2019-08-15 23:56:12 +00:00

24 lines
593 B
Go

// 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) {}