Make lint and fix linter issues (#67)

roller.go

@@ -67,7 +67,7 @@ func (r *roller) getFlatMap() map[string]interface{} {
 	return r.root
 }
 
-// getFlatVal return interfac{} value if exist
+// getFlatVal return interface{} value if exist
 func (r *roller) getFlatVal(key string) (interface{}, bool) {
 	var val interface{}
 	var ok bool
@@ -173,13 +173,6 @@ func (r *roller) traverseStruct(iface interface{}) {
 
 // traverseMap through all the map and add it to root
 func (r *roller) traverseMap(iface interface{}) {
-	ifv := reflect.ValueOf(iface)
-	ift := reflect.TypeOf(iface)
-	if ift.Kind() == reflect.Ptr {
-		ifv = ifv.Elem()
-		ift = ift.Elem()
-	}
-
 	switch t := iface.(type) {
 	case map[string]interface{}:
 		for k, v := range t {

roller_test.go

@@ -1,6 +1,7 @@
 package govalidator
 
 import (
+	"reflect"
 	"testing"
 )
 
@@ -117,7 +118,7 @@ func BenchmarkRoller_Start(b *testing.B) {
 
 func Test_Roller_Start_empty_map(t *testing.T) {
 	r := roller{}
-	emap := make(map[string]interface{}, 0)
+	emap := make(map[string]interface{})
 	r.setTagIdentifier("validate")
 	r.setTagSeparator("|")
 	r.start(emap)
@@ -242,7 +243,7 @@ func TestRoller_GetFlatVal(t *testing.T) {
 
 	//check struct field with array
 	intArrOf5, _ := r.getFlatVal("array")
-	if len(intArrOf5.([5]int)) != 5 {
+	if reflect.ValueOf(intArrOf5).Len() != 5 && reflect.TypeOf(intArrOf5).Kind() == reflect.Array {
 		t.Error("GetFlatVal failed for struct array of [5]int field!")
 	}
 

type.go

@@ -15,7 +15,7 @@ var null = []byte("null")
 
 // UnmarshalJSON ...
 func (i *Int) UnmarshalJSON(data []byte) error {
-	if bytes.Compare(data, null) == 0 {
+	if bytes.Equal(data, null) {
 		return nil
 	}
 	i.IsSet = true
@@ -40,7 +40,7 @@ type Int64 struct {
 
 // UnmarshalJSON ...
 func (i *Int64) UnmarshalJSON(data []byte) error {
-	if bytes.Compare(data, null) == 0 {
+	if bytes.Equal(data, null) {
 		return nil
 	}
 	i.IsSet = true
@@ -65,7 +65,7 @@ type Float32 struct {
 
 // UnmarshalJSON ...
 func (i *Float32) UnmarshalJSON(data []byte) error {
-	if bytes.Compare(data, null) == 0 {
+	if bytes.Equal(data, null) {
 		return nil
 	}
 	i.IsSet = true
@@ -90,7 +90,7 @@ type Float64 struct {
 
 // UnmarshalJSON ...
 func (i *Float64) UnmarshalJSON(data []byte) error {
-	if bytes.Compare(data, null) == 0 {
+	if bytes.Equal(data, null) {
 		return nil
 	}
 	i.IsSet = true
@@ -115,7 +115,7 @@ type Bool struct {
 
 // UnmarshalJSON ...
 func (i *Bool) UnmarshalJSON(data []byte) error {
-	if bytes.Compare(data, null) == 0 {
+	if bytes.Equal(data, null) {
 		return nil
 	}
 	i.IsSet = true

utils_test.go

@@ -22,16 +22,6 @@ func Benchmark_isContainRequiredField(b *testing.B) {
 	}
 }
 
-type person struct{}
-
-func (person) Details() string {
-	return "John Doe"
-}
-
-func (person) Age(age string) string {
-	return "Age: " + age
-}
-
 func Test_isRuleExist(t *testing.T) {
 	if !isRuleExist("required") {
 		t.Error("isRuleExist failed for valid rule")

validate_file_test.go

@@ -23,8 +23,8 @@ func buildMocFormReq() (*http.Request, error) {
 	if err != nil {
 		return nil, err
 	}
-	io.Copy(part, file)
-	file.Close()
+	_, _ = io.Copy(part, file)
+	_ = file.Close()
 	err = writer.Close()
 	if err != nil {
 		return nil, err

validator.go

@@ -117,9 +117,9 @@ func (v *Validator) Validate() url.Values {
 // and if the input data is empty for this field
 func (v *Validator) getNonRequiredFields() map[string]struct{} {
 	if v.Opts.FormSize > 0 {
-		v.Opts.Request.ParseMultipartForm(v.Opts.FormSize)
+		_ = v.Opts.Request.ParseMultipartForm(v.Opts.FormSize)
 	} else {
-		v.Opts.Request.ParseMultipartForm(defaultFormSize)
+		_ = v.Opts.Request.ParseMultipartForm(defaultFormSize)
 	}
 
 	inputs := v.Opts.Request.Form