public void EraseCurrent()
{
EnsureValidKey();
MakeWritable();
_keyValueDB.WriteEraseOneCommand(GetCurrentKeyFromStack());
_cursor.Erase();
InvalidateCurrentKey();
if (_prefixKeyCount >= 0)
{
_prefixKeyCount--;
}
}
public void EraseCurrent()
{
EnsureValidKey();
MakeWrittable();
_cursor.Erase();
InvalidateCurrentKey();
if (_prefixKeyCount >= 0)
{
_prefixKeyCount--;
}
}
public void EraseToOneChild(int count)
{
var val = GetSampleValue().ToArray();
var key = new byte[3];
for (var i = 0; i < count; i++)
{
key[1] = (byte)(i * 2);
key[2] = (byte)(i + 5);
_cursor.Upsert(key, val);
}
key[1] = 2;
key[2] = 6;
_cursor.FindExact(key);
var c2 = _cursor.Clone();
c2.SeekIndex(c2.FindLastWithPrefix(new ReadOnlySpan <byte>()));
Assert.Equal(count - 1, _cursor.EraseTo(c2));
Assert.Equal(1, _root.GetCount());
_cursor.FindFirst(new ReadOnlySpan <byte>());
key = _cursor.GetKeyAsArray();
Assert.Equal(0, key[0]);
Assert.Equal(0, key[1]);
Assert.Equal(5, key[2]);
Assert.Equal(val, _cursor.GetValue().ToArray());
_cursor.Erase();
for (var i = 0; i < count; i++)
{
key[1] = (byte)(i * 2);
_cursor.Upsert(key, val);
}
key[1] = 0;
_cursor.FindExact(key);
c2 = _cursor.Clone();
c2.SeekIndex(c2.FindLastWithPrefix(new ReadOnlySpan <byte>()));
c2.MovePrevious();
Assert.Equal(count - 1, _cursor.EraseTo(c2));
Assert.Equal(1, _root.GetCount());
_cursor.FindFirst(new ReadOnlySpan <byte>());
key = _cursor.GetKeyAsArray();
Assert.Equal(0, key[0]);
Assert.Equal((count - 1) * 2, key[1]);
Assert.Equal(val, _cursor.GetValue().ToArray());
}