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iter-iter: changed item operation from function and args to a list of expressions

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This commit is contained in:
Celestino Amoroso
2026-05-06 04:04:08 +02:00
parent acd4f8487d
commit 5585b496fb
7 changed files with 86 additions and 99 deletions
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operator-join.go
+9 -4
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@@ -28,6 +28,7 @@ func evalJoin(ctx kern.ExprContext, opTerm *scan.Term) (v any, err error) {
var leftValue, rightValue any
var itLeft, itRight kern.Iterator
var item any
var ok bool
if err = opTerm.CheckOperands(); err != nil {
return
@@ -41,12 +42,16 @@ func evalJoin(ctx kern.ExprContext, opTerm *scan.Term) (v any, err error) {
return
}
if itLeft, err = NewIterator(ctx, leftValue, nil); err != nil {
return nil, fmt.Errorf("left operand of JOIN must be an iterable data-source; got %s", kern.TypeName(leftValue))
if itLeft, ok = leftValue.(kern.Iterator); !ok {
if itLeft, err = NewIterator(ctx, leftValue, nil); err != nil {
return nil, fmt.Errorf("left operand of JOIN must be an iterable data-source; got %s", kern.TypeName(leftValue))
}
}
if itRight, err = NewIterator(ctx, rightValue, nil); err != nil {
return nil, fmt.Errorf("right operand of JOIN must be an iterable data-source; got %s", kern.TypeName(rightValue))
if itRight, ok = rightValue.(kern.Iterator); !ok {
if itRight, err = NewIterator(ctx, rightValue, nil); err != nil {
return nil, fmt.Errorf("right operand of JOIN must be an iterable data-source; got %s", kern.TypeName(rightValue))
}
}
values := kern.NewListA()