func (t *Totaler) Consume(s functional.Stream) {
var entry Entry
for s.Next(&entry) {
if t.Income {
if entry.Amount < 0 {
t.Total -= entry.Amount
}
} else {
if entry.Amount > 0 {
t.Total += entry.Amount
}
}
}
}
func (p Printer) Consume(s functional.Stream) {
var entry Entry
for s.Next(&entry) {
fmt.Println(&entry)
}
}