expr/iter-list.go

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// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// iter-list.go
package expr
import "io"
type FlatArrayIterator struct {
a []any
index int
}
func NewFlatArrayIterator(array []any) *FlatArrayIterator {
return &FlatArrayIterator{a: array, index: 0}
}
func (it *FlatArrayIterator) Current() (item any, err error) {
if it.index >= 0 && it.index < len(it.a) {
item = it.a[it.index]
} else {
err = io.EOF
}
return
}
func (it *FlatArrayIterator) Next() (item any, err error) {
if item, err = it.Current(); err != io.EOF {
it.index++
}
// if it.index < len(it.a) {
// item = it.a[it.index]
// it.index++
// } else {
// err = io.EOF
// }
return
}
func (it *FlatArrayIterator) Index() int {
return it.index - 1
}