From b2629b9bfae1afdefd5780d3f47fcc17c956496b Mon Sep 17 00:00:00 2001
From: John Guo <john@johng.cn>
Date: Wed, 22 Sep 2021 19:12:31 +0800
Subject: [PATCH] comment update for package gtrace

---
 net/gtrace/gtrace_carrier.go | 6 +++---
 net/gtrace/gtrace_span.go    | 2 +-
 net/gtrace/gtrace_tracer.go  | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/gtrace/gtrace_carrier.go b/net/gtrace/gtrace_carrier.go
index c378d884f..4cce90236 100644
--- a/net/gtrace/gtrace_carrier.go
+++ b/net/gtrace/gtrace_carrier.go
@@ -14,7 +14,7 @@ import (
 // Carrier is the storage medium used by a TextMapPropagator.
 type Carrier map[string]interface{}
 
-// NewCarrier .
+// NewCarrier creates and returns a Carrier.
 func NewCarrier(data ...map[string]interface{}) Carrier {
 	if len(data) > 0 && data[0] != nil {
 		return data[0]
@@ -50,12 +50,12 @@ func (c Carrier) MustMarshal() []byte {
 	return b
 }
 
-// String .
+// String converts and returns current Carrier as string.
 func (c Carrier) String() string {
 	return string(c.MustMarshal())
 }
 
-// UnmarshalJSON .
+// UnmarshalJSON implements interface UnmarshalJSON for package json.
 func (c Carrier) UnmarshalJSON(b []byte) error {
 	carrier := NewCarrier(nil)
 	return json.UnmarshalUseNumber(b, carrier)
diff --git a/net/gtrace/gtrace_span.go b/net/gtrace/gtrace_span.go
index 40d1c7b33..0d7fb240b 100644
--- a/net/gtrace/gtrace_span.go
+++ b/net/gtrace/gtrace_span.go
@@ -12,7 +12,7 @@ import (
 	"go.opentelemetry.io/otel/trace"
 )
 
-// Span 。
+// Span warps trace.Span for compatibility and extension.
 type Span struct {
 	trace.Span
 }
diff --git a/net/gtrace/gtrace_tracer.go b/net/gtrace/gtrace_tracer.go
index da693df11..47d2baa72 100644
--- a/net/gtrace/gtrace_tracer.go
+++ b/net/gtrace/gtrace_tracer.go
@@ -11,7 +11,7 @@ import (
 	"go.opentelemetry.io/otel/trace"
 )
 
-// Tracer .
+// Tracer warps trace.Tracer for compatibility and extension.
 type Tracer struct {
 	trace.Tracer
 }