refactored data-types to reduce plugin sizes

operand-dict.go

@@ -7,6 +7,9 @@ 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"
+	"git.portale-stac.it/go-pkg/expr/types/dict"
+	"git.portale-stac.it/go-pkg/expr/types/str"
 )
 
 // -------- dict term
@@ -23,16 +26,16 @@ func newDictTerm(args map[any]*scan.Term) *scan.Term {
 
 // -------- dict func
 func evalDict(ctx kern.ExprContext, opTerm *scan.Term) (v any, err error) {
-	dict, _ := opTerm.Value().(map[any]*scan.Term)
-	items := make(kern.DictType, len(dict))
-	for key, tree := range dict {
+	dt, _ := opTerm.Value().(map[any]*scan.Term)
+	items := make(dict.DictType, len(dt))
+	for key, tree := range dt {
 		var param any
 		if param, err = tree.Compute(ctx); err != nil {
 			break
 		}
 		var keyValue any
 		if keyValue, err = (key.(*scan.Term)).Compute(ctx); err == nil {
-			if kern.IsInteger(keyValue) || kern.IsString(keyValue) {
+			if types.IsInteger(keyValue) || str.IsString(keyValue) {
 				items[keyValue] = param
 			} else {
 				err = key.(*scan.Term).Errorf("dict key can be integer or string, got %s", kern.TypeName(keyValue))