refactor(container/gring): mark deprecated, package container/gring…

… will not be maintained in future (gogf#3665)

container/glist/glist.go

@@ -5,7 +5,8 @@
 // You can obtain one at https://github.com/gogf/gf.
 //
 
-// Package glist provides most commonly used doubly linked list container which also supports concurrent-safe/unsafe switch feature.
+// Package glist provides most commonly used doubly linked list container which also supports
+// concurrent-safe/unsafe switch feature.
 package glist
 
 import (

container/gring/gring.go

@@ -5,6 +5,8 @@
 // You can obtain one at https://github.com/gogf/gf.
 
 // Package gring provides a concurrent-safe/unsafe ring(circular lists).
+//
+// Deprecated.
 package gring
 
 import (
@@ -15,6 +17,8 @@ import (
 )
 
 // Ring is a struct of ring structure.
+//
+// Deprecated.
 type Ring struct {
 	mu    *rwmutex.RWMutex
 	ring  *ring.Ring  // Underlying ring.
@@ -31,6 +35,8 @@ type internalRingItem struct {
 // New creates and returns a Ring structure of `cap` elements.
 // The optional parameter `safe` specifies whether using this structure in concurrent safety,
 // which is false in default.
+//
+// Deprecated.
 func New(cap int, safe ...bool) *Ring {
 	return &Ring{
 		mu:    rwmutex.New(safe...),

container/gset/gset_any_set.go

@@ -16,6 +16,7 @@ import (
 	"github.com/gogf/gf/v2/util/gconv"
 )
 
+// Set is consisted of interface{} items.
 type Set struct {
 	mu   rwmutex.RWMutex
 	data map[interface{}]struct{}

container/gset/gset_int_set.go

@@ -15,6 +15,7 @@ import (
 	"github.com/gogf/gf/v2/util/gconv"
 )
 
+// IntSet is consisted of int items.
 type IntSet struct {
 	mu   rwmutex.RWMutex
 	data map[int]struct{}

container/gset/gset_str_set.go

@@ -17,6 +17,7 @@ import (
 	"github.com/gogf/gf/v2/util/gconv"
 )
 
+// StrSet is consisted of string items.
 type StrSet struct {
 	mu   rwmutex.RWMutex
 	data map[string]struct{}

container/gvar/gvar.go

@@ -4,7 +4,7 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://github.com/gogf/gf.
 
-// Package gvar provides an universal variable type, like generics.
+// Package gvar provides an universal variable type, like runtime generics.
 package gvar
 
 import (