int-iterator is now defined interval

operand-selector-case.go

@@ -5,9 +5,6 @@
 package expr
 
 import (
-	"fmt"
-	"strings"
-
 	"git.portale-stac.it/go-pkg/expr/kern"
 	"git.portale-stac.it/go-pkg/expr/scan"
 	"git.portale-stac.it/go-pkg/expr/sym"
@@ -20,17 +17,17 @@ type selectorCase struct {
 	caseExpr   kern.Expr
 }
 
-func (sc *selectorCase) String() string {
-	var sb strings.Builder
-	if sc.filterList != nil {
-		sc.filterList.ToString(&sb)
-		sb.WriteByte(' ')
-	}
-	sb.WriteByte('{')
-	sb.WriteString(sc.caseExpr.String())
-	sb.WriteByte('}')
-	return sb.String()
-}
+// func (sc *selectorCase) String() string {
+// 	var sb strings.Builder
+// 	if sc.filterList != nil {
+// 		sc.filterList.ToString(&sb)
+// 		sb.WriteByte(' ')
+// 	}
+// 	sb.WriteByte('{')
+// 	sb.WriteString(sc.caseExpr.String())
+// 	sb.WriteByte('}')
+// 	return sb.String()
+// }
 
 func newSelectorCaseTerm(row, col int, filterList *scan.Term, caseExpr kern.Expr) *scan.Term {
 	tk := scan.NewValueToken(row, col, sym.SymSelectorCase, "", &selectorCase{filterList: filterList, caseExpr: caseExpr})
@@ -46,9 +43,14 @@ func newSelectorCaseTerm(row, col int, filterList *scan.Term, caseExpr kern.Expr
 
 // -------- eval selector case
 func evalSelectorCase(ctx kern.ExprContext, opTerm *scan.Term) (v any, err error) {
-	var ok bool
-	if v, ok = opTerm.Value().(*selectorCase); !ok {
-		err = fmt.Errorf("selector-case expected, got %T", opTerm.Value())
-	}
+	v, _ = opTerm.Value().(*selectorCase)
 	return
 }
+
+// func evalSelectorCase(ctx kern.ExprContext, opTerm *scan.Term) (v any, err error) {
+// 	var ok bool
+// 	if v, ok = opTerm.Value().(*selectorCase); !ok {
+// 		err = fmt.Errorf("selector-case expected, got %T", opTerm.Value())
+// 	}
+// 	return
+// }