48 lines
813 B
Go
48 lines
813 B
Go
package libbox
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import "github.com/sagernet/sing/common"
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type StringIterator interface {
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Next() string
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HasNext() bool
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}
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var _ StringIterator = (*iterator[string])(nil)
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type iterator[T any] struct {
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values []T
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}
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func newIterator[T any](values []T) *iterator[T] {
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return &iterator[T]{values}
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}
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func (i *iterator[T]) Next() T {
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if len(i.values) == 0 {
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return common.DefaultValue[T]()
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}
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nextValue := i.values[0]
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i.values = i.values[1:]
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return nextValue
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}
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func (i *iterator[T]) HasNext() bool {
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return len(i.values) > 0
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}
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type abstractIterator[T any] interface {
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Next() T
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HasNext() bool
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}
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func iteratorToArray[T any](iterator abstractIterator[T]) []T {
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if iterator == nil {
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return nil
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}
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var values []T
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for iterator.HasNext() {
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values = append(values, iterator.Next())
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}
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return values
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}
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