25 lines
722 B
Go
25 lines
722 B
Go
package db
|
|
|
|
import (
|
|
dbm "github.com/cosmos/cosmos-sdk/db"
|
|
storetypes "github.com/cosmos/cosmos-sdk/store/types"
|
|
)
|
|
|
|
var _ = (*storetypes.Iterator)(nil)
|
|
|
|
type dbAsStoreIter struct {
|
|
dbm.Iterator
|
|
valid bool
|
|
}
|
|
|
|
// DBToStoreIterator returns an iterator wrapping the given iterator so that it satisfies the
|
|
// (store/types).Iterator interface.
|
|
func DBToStoreIterator(source dbm.Iterator) *dbAsStoreIter {
|
|
ret := &dbAsStoreIter{Iterator: source}
|
|
ret.Next() // The DB iterator must be primed before it can access the first element, because Next also returns the validity status
|
|
return ret
|
|
}
|
|
|
|
func (it *dbAsStoreIter) Next() { it.valid = it.Iterator.Next() }
|
|
func (it *dbAsStoreIter) Valid() bool { return it.valid }
|