Interface implementation assertions moved outside the functions

lists/arraylist/arraylist.go

@@ -17,9 +17,8 @@ import (
 	"github.com/emirpasic/gods/utils"
 )
 
-func assertListImplementation() {
+// Assert List implementation
-	var _ lists.List = (*List)(nil)
+var _ lists.List = (*List)(nil)
-}
 
 // List holds the elements in a slice
 type List struct {

lists/arraylist/enumerable.go

@@ -6,9 +6,8 @@ package arraylist
 
 import "github.com/emirpasic/gods/containers"
 
-func assertEnumerableImplementation() {
+// Assert Enumerable implementation
-	var _ containers.EnumerableWithIndex = (*List)(nil)
+var _ containers.EnumerableWithIndex = (*List)(nil)
-}
 
 // Each calls the given function once for each element, passing that element's index and value.
 func (list *List) Each(f func(index int, value interface{})) {

lists/arraylist/iterator.go

@@ -6,9 +6,8 @@ package arraylist
 
 import "github.com/emirpasic/gods/containers"
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
-}
 
 // Iterator holding the iterator's state
 type Iterator struct {

lists/arraylist/serialization.go

@@ -9,10 +9,9 @@ import (
 	"github.com/emirpasic/gods/containers"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*List)(nil)
+var _ containers.JSONSerializer = (*List)(nil)
-	var _ containers.JSONDeserializer = (*List)(nil)
+var _ containers.JSONDeserializer = (*List)(nil)
-}
 
 // ToJSON outputs the JSON representation of list's elements.
 func (list *List) ToJSON() ([]byte, error) {

lists/doublylinkedlist/doublylinkedlist.go

@@ -17,9 +17,8 @@ import (
 	"github.com/emirpasic/gods/utils"
 )
 
-func assertListImplementation() {
+// Assert List implementation
-	var _ lists.List = (*List)(nil)
+var _ lists.List = (*List)(nil)
-}
 
 // List holds the elements, where each element points to the next and previous element
 type List struct {

lists/doublylinkedlist/enumerable.go

@@ -6,9 +6,8 @@ package doublylinkedlist
 
 import "github.com/emirpasic/gods/containers"
 
-func assertEnumerableImplementation() {
+// Assert Enumerable implementation
-	var _ containers.EnumerableWithIndex = (*List)(nil)
+var _ containers.EnumerableWithIndex = (*List)(nil)
-}
 
 // Each calls the given function once for each element, passing that element's index and value.
 func (list *List) Each(f func(index int, value interface{})) {

lists/doublylinkedlist/iterator.go

@@ -6,9 +6,8 @@ package doublylinkedlist
 
 import "github.com/emirpasic/gods/containers"
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
-}
 
 // Iterator holding the iterator's state
 type Iterator struct {

lists/doublylinkedlist/serialization.go

@@ -9,10 +9,9 @@ import (
 	"github.com/emirpasic/gods/containers"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*List)(nil)
+var _ containers.JSONSerializer = (*List)(nil)
-	var _ containers.JSONDeserializer = (*List)(nil)
+var _ containers.JSONDeserializer = (*List)(nil)
-}
 
 // ToJSON outputs the JSON representation of list's elements.
 func (list *List) ToJSON() ([]byte, error) {

lists/singlylinkedlist/enumerable.go

@@ -6,9 +6,8 @@ package singlylinkedlist
 
 import "github.com/emirpasic/gods/containers"
 
-func assertEnumerableImplementation() {
+// Assert Enumerable implementation
-	var _ containers.EnumerableWithIndex = (*List)(nil)
+var _ containers.EnumerableWithIndex = (*List)(nil)
-}
 
 // Each calls the given function once for each element, passing that element's index and value.
 func (list *List) Each(f func(index int, value interface{})) {

lists/singlylinkedlist/iterator.go

@@ -6,9 +6,8 @@ package singlylinkedlist
 
 import "github.com/emirpasic/gods/containers"
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.IteratorWithIndex = (*Iterator)(nil)
+var _ containers.IteratorWithIndex = (*Iterator)(nil)
-}
 
 // Iterator holding the iterator's state
 type Iterator struct {

lists/singlylinkedlist/serialization.go

@@ -9,10 +9,9 @@ import (
 	"github.com/emirpasic/gods/containers"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*List)(nil)
+var _ containers.JSONSerializer = (*List)(nil)
-	var _ containers.JSONDeserializer = (*List)(nil)
+var _ containers.JSONDeserializer = (*List)(nil)
-}
 
 // ToJSON outputs the JSON representation of list's elements.
 func (list *List) ToJSON() ([]byte, error) {

lists/singlylinkedlist/singlylinkedlist.go

@@ -17,9 +17,8 @@ import (
 	"github.com/emirpasic/gods/utils"
 )
 
-func assertListImplementation() {
+// Assert List implementation
-	var _ lists.List = (*List)(nil)
+var _ lists.List = (*List)(nil)
-}
 
 // List holds the elements, where each element points to the next element
 type List struct {

maps/hashbidimap/hashbidimap.go

@@ -21,9 +21,8 @@ import (
 	"github.com/emirpasic/gods/maps/hashmap"
 )
 
-func assertMapImplementation() {
+// Assert Map implementation
-	var _ maps.BidiMap = (*Map)(nil)
+var _ maps.BidiMap = (*Map)(nil)
-}
 
 // Map holds the elements in two hashmaps.
 type Map struct {

maps/hashbidimap/serialization.go

@@ -9,10 +9,9 @@ import (
 	"github.com/emirpasic/gods/containers"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Map)(nil)
+var _ containers.JSONSerializer = (*Map)(nil)
-	var _ containers.JSONDeserializer = (*Map)(nil)
+var _ containers.JSONDeserializer = (*Map)(nil)
-}
 
 // ToJSON outputs the JSON representation of the map.
 func (m *Map) ToJSON() ([]byte, error) {

maps/hashmap/hashmap.go

@@ -16,9 +16,8 @@ import (
 	"github.com/emirpasic/gods/maps"
 )
 
-func assertMapImplementation() {
+// Assert Map implementation
-	var _ maps.Map = (*Map)(nil)
+var _ maps.Map = (*Map)(nil)
-}
 
 // Map holds the elements in go's native map
 type Map struct {

maps/hashmap/serialization.go

@@ -10,10 +10,9 @@ import (
 	"github.com/emirpasic/gods/utils"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Map)(nil)
+var _ containers.JSONSerializer = (*Map)(nil)
-	var _ containers.JSONDeserializer = (*Map)(nil)
+var _ containers.JSONDeserializer = (*Map)(nil)
-}
 
 // ToJSON outputs the JSON representation of the map.
 func (m *Map) ToJSON() ([]byte, error) {

maps/linkedhashmap/enumerable.go

@@ -6,9 +6,8 @@ package linkedhashmap
 
 import "github.com/emirpasic/gods/containers"
 
-func assertEnumerableImplementation() {
+// Assert Enumerable implementation
-	var _ containers.EnumerableWithKey = (*Map)(nil)
+var _ containers.EnumerableWithKey = (*Map)(nil)
-}
 
 // Each calls the given function once for each element, passing that element's key and value.
 func (m *Map) Each(f func(key interface{}, value interface{})) {

maps/linkedhashmap/iterator.go

@@ -9,9 +9,8 @@ import (
 	"github.com/emirpasic/gods/lists/doublylinkedlist"
 )
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
-}
 
 // Iterator holding the iterator's state
 type Iterator struct {

maps/linkedhashmap/linkedhashmap.go

@@ -18,9 +18,8 @@ import (
 	"strings"
 )
 
-func assertMapImplementation() {
+// Assert Map implementation
-	var _ maps.Map = (*Map)(nil)
+var _ maps.Map = (*Map)(nil)
-}
 
 // Map holds the elements in a regular hash table, and uses doubly-linked list to store key ordering.
 type Map struct {

maps/linkedhashmap/serialization.go

@@ -11,10 +11,9 @@ import (
 	"github.com/emirpasic/gods/utils"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Map)(nil)
+var _ containers.JSONSerializer = (*Map)(nil)
-	var _ containers.JSONDeserializer = (*Map)(nil)
+var _ containers.JSONDeserializer = (*Map)(nil)
-}
 
 // ToJSON outputs the JSON representation of map.
 func (m *Map) ToJSON() ([]byte, error) {

maps/treebidimap/enumerable.go

@@ -6,9 +6,8 @@ package treebidimap
 
 import "github.com/emirpasic/gods/containers"
 
-func assertEnumerableImplementation() {
+// Assert Enumerable implementation
-	var _ containers.EnumerableWithKey = (*Map)(nil)
+var _ containers.EnumerableWithKey = (*Map)(nil)
-}
 
 // Each calls the given function once for each element, passing that element's key and value.
 func (m *Map) Each(f func(key interface{}, value interface{})) {

maps/treebidimap/iterator.go

@@ -9,9 +9,8 @@ import (
 	rbt "github.com/emirpasic/gods/trees/redblacktree"
 )
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
-}
 
 // Iterator holding the iterator's state
 type Iterator struct {

maps/treebidimap/serialization.go

@@ -10,10 +10,9 @@ import (
 	"github.com/emirpasic/gods/utils"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Map)(nil)
+var _ containers.JSONSerializer = (*Map)(nil)
-	var _ containers.JSONDeserializer = (*Map)(nil)
+var _ containers.JSONDeserializer = (*Map)(nil)
-}
 
 // ToJSON outputs the JSON representation of the map.
 func (m *Map) ToJSON() ([]byte, error) {

maps/treebidimap/treebidimap.go

@@ -25,9 +25,8 @@ import (
 	"strings"
 )
 
-func assertMapImplementation() {
+// Assert Map implementation
-	var _ maps.BidiMap = (*Map)(nil)
+var _ maps.BidiMap = (*Map)(nil)
-}
 
 // Map holds the elements in two red-black trees.
 type Map struct {

maps/treemap/enumerable.go

@@ -9,9 +9,8 @@ import (
 	rbt "github.com/emirpasic/gods/trees/redblacktree"
 )
 
-func assertEnumerableImplementation() {
+// Assert Enumerable implementation
-	var _ containers.EnumerableWithKey = (*Map)(nil)
+var _ containers.EnumerableWithKey = (*Map)(nil)
-}
 
 // Each calls the given function once for each element, passing that element's key and value.
 func (m *Map) Each(f func(key interface{}, value interface{})) {

maps/treemap/iterator.go

@@ -9,9 +9,8 @@ import (
 	rbt "github.com/emirpasic/gods/trees/redblacktree"
 )
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
-}
 
 // Iterator holding the iterator's state
 type Iterator struct {

maps/treemap/serialization.go

@@ -8,10 +8,9 @@ import (
 	"github.com/emirpasic/gods/containers"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Map)(nil)
+var _ containers.JSONSerializer = (*Map)(nil)
-	var _ containers.JSONDeserializer = (*Map)(nil)
+var _ containers.JSONDeserializer = (*Map)(nil)
-}
 
 // ToJSON outputs the JSON representation of the map.
 func (m *Map) ToJSON() ([]byte, error) {

maps/treemap/treemap.go

@@ -19,9 +19,8 @@ import (
 	"strings"
 )
 
-func assertMapImplementation() {
+// Assert Map implementation
-	var _ maps.Map = (*Map)(nil)
+var _ maps.Map = (*Map)(nil)
-}
 
 // Map holds the elements in a red-black tree
 type Map struct {

sets/hashset/hashset.go

@@ -15,9 +15,8 @@ import (
 	"strings"
 )
 
-func assertSetImplementation() {
+// Assert Set implementation
-	var _ sets.Set = (*Set)(nil)
+var _ sets.Set = (*Set)(nil)
-}
 
 // Set holds elements in go's native map
 type Set struct {

sets/hashset/serialization.go

@@ -9,10 +9,9 @@ import (
 	"github.com/emirpasic/gods/containers"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Set)(nil)
+var _ containers.JSONSerializer = (*Set)(nil)
-	var _ containers.JSONDeserializer = (*Set)(nil)
+var _ containers.JSONDeserializer = (*Set)(nil)
-}
 
 // ToJSON outputs the JSON representation of the set.
 func (set *Set) ToJSON() ([]byte, error) {

sets/linkedhashset/enumerable.go

@@ -6,9 +6,8 @@ package linkedhashset
 
 import "github.com/emirpasic/gods/containers"
 
-func assertEnumerableImplementation() {
+// Assert Enumerable implementation
-	var _ containers.EnumerableWithIndex = (*Set)(nil)
+var _ containers.EnumerableWithIndex = (*Set)(nil)
-}
 
 // Each calls the given function once for each element, passing that element's index and value.
 func (set *Set) Each(f func(index int, value interface{})) {

sets/linkedhashset/iterator.go

@@ -9,9 +9,8 @@ import (
 	"github.com/emirpasic/gods/lists/doublylinkedlist"
 )
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
-}
 
 // Iterator holding the iterator's state
 type Iterator struct {

sets/linkedhashset/linkedhashset.go

@@ -20,9 +20,8 @@ import (
 	"strings"
 )
 
-func assertSetImplementation() {
+// Assert Set implementation
-	var _ sets.Set = (*Set)(nil)
+var _ sets.Set = (*Set)(nil)
-}
 
 // Set holds elements in go's native map
 type Set struct {

sets/linkedhashset/serialization.go

@@ -9,10 +9,9 @@ import (
 	"github.com/emirpasic/gods/containers"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Set)(nil)
+var _ containers.JSONSerializer = (*Set)(nil)
-	var _ containers.JSONDeserializer = (*Set)(nil)
+var _ containers.JSONDeserializer = (*Set)(nil)
-}
 
 // ToJSON outputs the JSON representation of the set.
 func (set *Set) ToJSON() ([]byte, error) {

sets/treeset/enumerable.go

@@ -9,9 +9,8 @@ import (
 	rbt "github.com/emirpasic/gods/trees/redblacktree"
 )
 
-func assertEnumerableImplementation() {
+// Assert Enumerable implementation
-	var _ containers.EnumerableWithIndex = (*Set)(nil)
+var _ containers.EnumerableWithIndex = (*Set)(nil)
-}
 
 // Each calls the given function once for each element, passing that element's index and value.
 func (set *Set) Each(f func(index int, value interface{})) {

sets/treeset/iterator.go

@@ -9,9 +9,8 @@ import (
 	rbt "github.com/emirpasic/gods/trees/redblacktree"
 )
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
-}
 
 // Iterator returns a stateful iterator whose values can be fetched by an index.
 type Iterator struct {

sets/treeset/serialization.go

@@ -9,10 +9,9 @@ import (
 	"github.com/emirpasic/gods/containers"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Set)(nil)
+var _ containers.JSONSerializer = (*Set)(nil)
-	var _ containers.JSONDeserializer = (*Set)(nil)
+var _ containers.JSONDeserializer = (*Set)(nil)
-}
 
 // ToJSON outputs the JSON representation of the set.
 func (set *Set) ToJSON() ([]byte, error) {

sets/treeset/treeset.go

@@ -18,9 +18,8 @@ import (
 	"strings"
 )
 
-func assertSetImplementation() {
+// Assert Set implementation
-	var _ sets.Set = (*Set)(nil)
+var _ sets.Set = (*Set)(nil)
-}
 
 // Set holds elements in a red-black tree
 type Set struct {

stacks/arraystack/arraystack.go

@@ -16,9 +16,8 @@ import (
 	"strings"
 )
 
-func assertStackImplementation() {
+// Assert Stack implementation
-	var _ stacks.Stack = (*Stack)(nil)
+var _ stacks.Stack = (*Stack)(nil)
-}
 
 // Stack holds elements in an array-list
 type Stack struct {

stacks/arraystack/iterator.go

@@ -6,9 +6,8 @@ package arraystack
 
 import "github.com/emirpasic/gods/containers"
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
-}
 
 // Iterator returns a stateful iterator whose values can be fetched by an index.
 type Iterator struct {

stacks/arraystack/serialization.go

@@ -8,10 +8,9 @@ import (
 	"github.com/emirpasic/gods/containers"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Stack)(nil)
+var _ containers.JSONSerializer = (*Stack)(nil)
-	var _ containers.JSONDeserializer = (*Stack)(nil)
+var _ containers.JSONDeserializer = (*Stack)(nil)
-}
 
 // ToJSON outputs the JSON representation of the stack.
 func (stack *Stack) ToJSON() ([]byte, error) {

stacks/linkedliststack/iterator.go

@@ -6,9 +6,8 @@ package linkedliststack
 
 import "github.com/emirpasic/gods/containers"
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.IteratorWithIndex = (*Iterator)(nil)
+var _ containers.IteratorWithIndex = (*Iterator)(nil)
-}
 
 // Iterator returns a stateful iterator whose values can be fetched by an index.
 type Iterator struct {

stacks/linkedliststack/linkedliststack.go

@@ -16,9 +16,8 @@ import (
 	"strings"
 )
 
-func assertStackImplementation() {
+// Assert Stack implementation
-	var _ stacks.Stack = (*Stack)(nil)
+var _ stacks.Stack = (*Stack)(nil)
-}
 
 // Stack holds elements in a singly-linked-list
 type Stack struct {

stacks/linkedliststack/serialization.go

@@ -8,10 +8,9 @@ import (
 	"github.com/emirpasic/gods/containers"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Stack)(nil)
+var _ containers.JSONSerializer = (*Stack)(nil)
-	var _ containers.JSONDeserializer = (*Stack)(nil)
+var _ containers.JSONDeserializer = (*Stack)(nil)
-}
 
 // ToJSON outputs the JSON representation of the stack.
 func (stack *Stack) ToJSON() ([]byte, error) {

trees/avltree/avltree.go

@@ -15,9 +15,8 @@ import (
 	"github.com/emirpasic/gods/utils"
 )
 
-func assertTreeImplementation() {
+// Assert Tree implementation
-	var _ trees.Tree = new(Tree)
+var _ trees.Tree = new(Tree)
-}
 
 // Tree holds elements of the AVL tree.
 type Tree struct {

trees/avltree/iterator.go

@@ -6,9 +6,8 @@ package avltree
 
 import "github.com/emirpasic/gods/containers"
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
-}
 
 // Iterator holding the iterator's state
 type Iterator struct {

trees/avltree/serialization.go

@@ -10,10 +10,9 @@ import (
 	"github.com/emirpasic/gods/utils"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Tree)(nil)
+var _ containers.JSONSerializer = (*Tree)(nil)
-	var _ containers.JSONDeserializer = (*Tree)(nil)
+var _ containers.JSONDeserializer = (*Tree)(nil)
-}
 
 // ToJSON outputs the JSON representation of the tree.
 func (tree *Tree) ToJSON() ([]byte, error) {

trees/binaryheap/binaryheap.go

@@ -19,9 +19,8 @@ import (
 	"strings"
 )
 
-func assertTreeImplementation() {
+// Assert Tree implementation
-	var _ trees.Tree = (*Heap)(nil)
+var _ trees.Tree = (*Heap)(nil)
-}
 
 // Heap holds elements in an array-list
 type Heap struct {

trees/binaryheap/iterator.go

@@ -6,9 +6,8 @@ package binaryheap
 
 import "github.com/emirpasic/gods/containers"
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithIndex = (*Iterator)(nil)
-}
 
 // Iterator returns a stateful iterator whose values can be fetched by an index.
 type Iterator struct {

trees/binaryheap/serialization.go

@@ -8,10 +8,9 @@ import (
 	"github.com/emirpasic/gods/containers"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Heap)(nil)
+var _ containers.JSONSerializer = (*Heap)(nil)
-	var _ containers.JSONDeserializer = (*Heap)(nil)
+var _ containers.JSONDeserializer = (*Heap)(nil)
-}
 
 // ToJSON outputs the JSON representation of the heap.
 func (heap *Heap) ToJSON() ([]byte, error) {

trees/btree/btree.go

@@ -24,9 +24,8 @@ import (
 	"strings"
 )
 
-func assertTreeImplementation() {
+// Assert Tree implementation
-	var _ trees.Tree = (*Tree)(nil)
+var _ trees.Tree = (*Tree)(nil)
-}
 
 // Tree holds elements of the B-tree
 type Tree struct {

trees/btree/iterator.go

@@ -6,9 +6,8 @@ package btree
 
 import "github.com/emirpasic/gods/containers"
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
-}
 
 // Iterator holding the iterator's state
 type Iterator struct {

trees/btree/serialization.go

@@ -10,10 +10,9 @@ import (
 	"github.com/emirpasic/gods/utils"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Tree)(nil)
+var _ containers.JSONSerializer = (*Tree)(nil)
-	var _ containers.JSONDeserializer = (*Tree)(nil)
+var _ containers.JSONDeserializer = (*Tree)(nil)
-}
 
 // ToJSON outputs the JSON representation of the tree.
 func (tree *Tree) ToJSON() ([]byte, error) {

trees/redblacktree/iterator.go

@@ -6,9 +6,8 @@ package redblacktree
 
 import "github.com/emirpasic/gods/containers"
 
-func assertIteratorImplementation() {
+// Assert Iterator implementation
-	var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
+var _ containers.ReverseIteratorWithKey = (*Iterator)(nil)
-}
 
 // Iterator holding the iterator's state
 type Iterator struct {

trees/redblacktree/redblacktree.go

@@ -17,9 +17,8 @@ import (
 	"github.com/emirpasic/gods/utils"
 )
 
-func assertTreeImplementation() {
+// Assert Tree implementation
-	var _ trees.Tree = (*Tree)(nil)
+var _ trees.Tree = (*Tree)(nil)
-}
 
 type color bool
 

trees/redblacktree/serialization.go

@@ -10,10 +10,9 @@ import (
 	"github.com/emirpasic/gods/utils"
 )
 
-func assertSerializationImplementation() {
+// Assert Serialization implementation
-	var _ containers.JSONSerializer = (*Tree)(nil)
+var _ containers.JSONSerializer = (*Tree)(nil)
-	var _ containers.JSONDeserializer = (*Tree)(nil)
+var _ containers.JSONDeserializer = (*Tree)(nil)
-}
 
 // ToJSON outputs the JSON representation of the tree.
 func (tree *Tree) ToJSON() ([]byte, error) {