From 56e1a9d1f4ee0f840e45584ded55f8dee5cfbc2c Mon Sep 17 00:00:00 2001
From: Isobel Redelmeier <iredelmeier@gmail.com>
Date: Tue, 13 Aug 2019 16:03:41 -0700
Subject: [PATCH] Export NoopSpan and NoopTracer (#92)

---
 api/trace/current.go    |  2 +-
 api/trace/global.go     |  2 +-
 api/trace/noop_span.go  | 32 ++++++++++++++++----------------
 api/trace/noop_trace.go | 18 +++++++++---------
 4 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/api/trace/current.go b/api/trace/current.go
index 5eca012c7..abadaa4fe 100644
--- a/api/trace/current.go
+++ b/api/trace/current.go
@@ -32,5 +32,5 @@ func CurrentSpan(ctx context.Context) Span {
 	if span, has := ctx.Value(currentSpanKey).(Span); has {
 		return span
 	}
-	return noopSpan{}
+	return NoopSpan{}
 }
diff --git a/api/trace/global.go b/api/trace/global.go
index d51436676..c85d775d5 100644
--- a/api/trace/global.go
+++ b/api/trace/global.go
@@ -27,7 +27,7 @@ func GlobalTracer() Tracer {
 	if t := global.Load(); t != nil {
 		return t.(Tracer)
 	}
-	return noopTracer{}
+	return NoopTracer{}
 }
 
 // SetGlobalTracer sets provided tracer as a global tracer.
diff --git a/api/trace/noop_span.go b/api/trace/noop_span.go
index 337edcd31..f15fe2726 100644
--- a/api/trace/noop_span.go
+++ b/api/trace/noop_span.go
@@ -24,58 +24,58 @@ import (
 	"go.opentelemetry.io/api/tag"
 )
 
-type noopSpan struct {
+type NoopSpan struct {
 }
 
-var _ Span = (*noopSpan)(nil)
+var _ Span = (*NoopSpan)(nil)
 
 // SpancContext returns an invalid span context.
-func (noopSpan) SpanContext() core.SpanContext {
+func (NoopSpan) SpanContext() core.SpanContext {
 	return core.EmptySpanContext()
 }
 
-// IsRecordingEvents always returns false for noopSpan.
-func (noopSpan) IsRecordingEvents() bool {
+// IsRecordingEvents always returns false for NoopSpan.
+func (NoopSpan) IsRecordingEvents() bool {
 	return false
 }
 
 // SetStatus does nothing.
-func (noopSpan) SetStatus(status codes.Code) {
+func (NoopSpan) SetStatus(status codes.Code) {
 }
 
 // SetError does nothing.
-func (noopSpan) SetError(v bool) {
+func (NoopSpan) SetError(v bool) {
 }
 
 // SetAttribute does nothing.
-func (noopSpan) SetAttribute(attribute core.KeyValue) {
+func (NoopSpan) SetAttribute(attribute core.KeyValue) {
 }
 
 // SetAttributes does nothing.
-func (noopSpan) SetAttributes(attributes ...core.KeyValue) {
+func (NoopSpan) SetAttributes(attributes ...core.KeyValue) {
 }
 
 // ModifyAttribute does nothing.
-func (noopSpan) ModifyAttribute(mutator tag.Mutator) {
+func (NoopSpan) ModifyAttribute(mutator tag.Mutator) {
 }
 
 // ModifyAttributes does nothing.
-func (noopSpan) ModifyAttributes(mutators ...tag.Mutator) {
+func (NoopSpan) ModifyAttributes(mutators ...tag.Mutator) {
 }
 
 // Finish does nothing.
-func (noopSpan) Finish() {
+func (NoopSpan) Finish() {
 }
 
 // Tracer returns noop implementation of Tracer.
-func (noopSpan) Tracer() Tracer {
-	return noopTracer{}
+func (NoopSpan) Tracer() Tracer {
+	return NoopTracer{}
 }
 
 // AddEvent does nothing.
-func (noopSpan) AddEvent(ctx context.Context, event event.Event) {
+func (NoopSpan) AddEvent(ctx context.Context, event event.Event) {
 }
 
 // Event does nothing.
-func (noopSpan) Event(ctx context.Context, msg string, attrs ...core.KeyValue) {
+func (NoopSpan) Event(ctx context.Context, msg string, attrs ...core.KeyValue) {
 }
diff --git a/api/trace/noop_trace.go b/api/trace/noop_trace.go
index ab44fa483..8a5902323 100644
--- a/api/trace/noop_trace.go
+++ b/api/trace/noop_trace.go
@@ -20,36 +20,36 @@ import (
 	"go.opentelemetry.io/api/core"
 )
 
-type noopTracer struct{}
+type NoopTracer struct{}
 
-var _ Tracer = noopTracer{}
+var _ Tracer = NoopTracer{}
 
 // WithResources does nothing and returns noop implementation of Tracer.
-func (t noopTracer) WithResources(attributes ...core.KeyValue) Tracer {
+func (t NoopTracer) WithResources(attributes ...core.KeyValue) Tracer {
 	return t
 }
 
 // WithComponent does nothing and returns noop implementation of Tracer.
-func (t noopTracer) WithComponent(name string) Tracer {
+func (t NoopTracer) WithComponent(name string) Tracer {
 	return t
 }
 
 // WithService does nothing and returns noop implementation of Tracer.
-func (t noopTracer) WithService(name string) Tracer {
+func (t NoopTracer) WithService(name string) Tracer {
 	return t
 }
 
 // WithSpan wraps around execution of func with noop span.
-func (t noopTracer) WithSpan(ctx context.Context, name string, body func(context.Context) error) error {
+func (t NoopTracer) WithSpan(ctx context.Context, name string, body func(context.Context) error) error {
 	return body(ctx)
 }
 
 // Start starts a noop span.
-func (noopTracer) Start(ctx context.Context, name string, opts ...SpanOption) (context.Context, Span) {
-	span := noopSpan{}
+func (NoopTracer) Start(ctx context.Context, name string, opts ...SpanOption) (context.Context, Span) {
+	span := NoopSpan{}
 	return SetCurrentSpan(ctx, span), span
 }
 
 // Inject does nothing.
-func (noopTracer) Inject(ctx context.Context, span Span, injector Injector) {
+func (NoopTracer) Inject(ctx context.Context, span Span, injector Injector) {
 }