Variable references belonging to the parent scope added ('@')

ast.go

@@ -6,7 +6,6 @@ package expr
 
 import (
 	"errors"
-	"fmt"
 	"strings"
 )
 
@@ -107,11 +106,11 @@ func (self *ast) Eval(ctx exprContext, preset bool) (result any, err error) {
 			initDefaultVars(ctx)
 		}
 		if self.forest != nil {
-			for i, root := range self.forest {
+			for _, root := range self.forest {
 				if result, err = root.compute(ctx); err == nil {
 					ctx.SetVar(preset_last_result, result)
 				} else {
-					err = fmt.Errorf("error in expression nr %d: %v", i+1, err)
+					//err = fmt.Errorf("error in expression nr %d: %v", i+1, err)
 					break
 				}
 			}