refactored data-types to reduce plugin sizes

operator-length.go

@@ -7,6 +7,10 @@ package expr
 import (
 	"git.portale-stac.it/go-pkg/expr/kern"
 	"git.portale-stac.it/go-pkg/expr/scan"
+	"git.portale-stac.it/go-pkg/expr/types/array"
+	"git.portale-stac.it/go-pkg/expr/types/dict"
+	"git.portale-stac.it/go-pkg/expr/types/list"
+	"git.portale-stac.it/go-pkg/expr/types/str"
 )
 
 //-------- length term
@@ -28,25 +32,19 @@ func evalLength(ctx kern.ExprContext, opTerm *scan.Term) (v any, err error) {
 		return
 	}
 
-	if kern.IsList(childValue) {
-		ls, _ := childValue.(*kern.ListType)
+	if array.IsList(childValue) {
+		ls, _ := childValue.(*array.ListType)
 		v = int64(len(*ls))
-	} else if kern.IsString(childValue) {
+	} else if str.IsString(childValue) {
 		s, _ := childValue.(string)
 		v = int64(len(s))
-	} else if kern.IsDict(childValue) {
-		m, _ := childValue.(*kern.DictType)
+	} else if dict.IsDict(childValue) {
+		m, _ := childValue.(*dict.DictType)
 		v = int64(len(*m))
-	} else if lls, ok := childValue.(*kern.LinkedList); ok {
+	} else if lls, ok := childValue.(*list.LinkedList); ok {
 		v = int64(lls.Len())
 	} else if it, ok := childValue.(kern.Iterator); ok {
 		v = int64(it.Count())
-		// if extIt, ok := childValue.(ExtIterator); ok && extIt.HasOperation(CountName) {
-		// 	count, _ := extIt.CallOperation(CountName, nil)
-		// 	v, _ = ToGoInt(count, "")
-		// } else {
-		// 	v = int64(it.Index() + 1)
-		// }
 	} else {
 		err = opTerm.ErrIncompatiblePrefixPostfixType(childValue)
 	}