[upd] revert irrelevant changes

Author: barash-asenov

.golangci.yaml

@@ -52,3 +52,4 @@ linters:
     - varnamelen
     - wrapcheck
     - wsl
+    - modernize

baked_in.go

@@ -17,7 +17,6 @@ import (
 	"os"
 	"reflect"
 	"runtime"
-	"slices"
 	"strconv"
 	"strings"
 	"sync"
@@ -305,7 +304,12 @@ func isOneOf(fl FieldLevel) bool {
 	default:
 		panic(fmt.Sprintf("Bad field type %s", field.Type()))
 	}
-	return slices.Contains(vals, v)
+	for i := 0; i < len(vals); i++ {
+		if vals[i] == v {
+			return true
+		}
+	}
+	return false
 }
 
 // isOneOfCI is the validation function for validating if the current field's value is one of the provided string values (case insensitive).
@@ -653,7 +657,7 @@ func isISBN13(fl FieldLevel) bool {
 
 	factor := []int32{1, 3}
 
-	for i = range int32(12) {
+	for i = 0; i < 12; i++ {
 		checksum += factor[i%2] * int32(s[i]-'0')
 	}
 
@@ -671,7 +675,7 @@ func isISBN10(fl FieldLevel) bool {
 	var checksum int32
 	var i int32
 
-	for i = range int32(9) {
+	for i = 0; i < 9; i++ {
 		checksum += (i + 1) * int32(s[i]-'0')
 	}
 
@@ -696,7 +700,7 @@ func isISSN(fl FieldLevel) bool {
 	pos := 8
 	checksum := 0
 
-	for i := range 7 {
+	for i := 0; i < 7; i++ {
 		checksum += pos * int(s[i]-'0')
 		pos--
 	}
@@ -828,7 +832,7 @@ func isBitcoinBech32Address(fl FieldLevel) bool {
 		b := p >> 25
 		p = (p&0x1ffffff)<<5 ^ v
 
-		for i := range 5 {
+		for i := 0; i < 5; i++ {
 			if (b>>uint(i))&1 == 1 {
 				p ^= GEN[i]
 			}
@@ -3097,8 +3101,8 @@ func isSpiceDB(fl FieldLevel) bool {
 func isCreditCard(fl FieldLevel) bool {
 	val := fl.Field().String()
 	var creditCard bytes.Buffer
-	segments := strings.SplitSeq(val, " ")
-	for segment := range segments {
+	segments := strings.Split(val, " ")
+	for _, segment := range segments {
 		if len(segment) < 3 {
 			return false
 		}
@@ -3196,7 +3200,7 @@ func tryCallValidateFn(field reflect.Value, validateFn string) (bool, error) {
 	case reflect.Bool:
 		return firstReturnValue.Bool(), nil
 	case reflect.Interface:
-		errorType := reflect.TypeFor[error]()
+		errorType := reflect.TypeOf((*error)(nil)).Elem()
 
 		if firstReturnValue.Type().Implements(errorType) {
 			return firstReturnValue.IsNil(), nil