03bca7b791
Co-authored-by: cool-developer <51834436+cool-develope@users.noreply.github.com> Co-authored-by: yihuang <huang@crypto.com>
58 lines
985 B
Go
58 lines
985 B
Go
package tracekv
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import (
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"io"
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"cosmossdk.io/store/v2"
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)
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var _ store.Iterator = (*iterator)(nil)
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type iterator struct {
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parent store.Iterator
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writer io.Writer
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context store.TraceContext
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}
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func newIterator(w io.Writer, parent store.Iterator, tc store.TraceContext) store.Iterator {
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return &iterator{
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parent: parent,
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writer: w,
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context: tc,
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}
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}
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func (itr *iterator) Domain() ([]byte, []byte) {
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return itr.parent.Domain()
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}
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func (itr *iterator) Valid() bool {
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return itr.parent.Valid()
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}
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func (itr *iterator) Next() bool {
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return itr.parent.Next()
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}
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func (itr *iterator) Error() error {
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return itr.parent.Error()
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}
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func (itr *iterator) Close() {
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itr.parent.Close()
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}
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func (itr *iterator) Key() []byte {
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key := itr.parent.Key()
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writeOperation(itr.writer, IterKeyOp, itr.context, key, nil)
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return key
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}
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func (itr *iterator) Value() []byte {
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value := itr.parent.Value()
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writeOperation(itr.writer, IterValueOp, itr.context, nil, value)
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return value
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}
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