private bool Storage_Find(ExecutionEngine engine)
{
if (engine.CurrentContext.EvaluationStack.Pop() is InteropInterface _interface)
{
StorageContext context = _interface.GetInterface <StorageContext>();
if (!CheckStorageContext(context))
{
return(false);
}
byte[] prefix = engine.CurrentContext.EvaluationStack.Pop().GetByteArray();
byte[] prefix_key;
using (MemoryStream ms = new MemoryStream())
{
int index = 0;
int remain = prefix.Length;
while (remain >= 16)
{
ms.Write(prefix, index, 16);
ms.WriteByte(0);
index += 16;
remain -= 16;
}
if (remain > 0)
{
ms.Write(prefix, index, remain);
}
prefix_key = context.ScriptHash.ToArray().Concat(ms.ToArray()).ToArray();
}
StorageIterator iterator = new StorageIterator(Snapshot.Storages.Find(prefix_key).Where(p => p.Key.Key.Take(prefix.Length).SequenceEqual(prefix)).GetEnumerator());
engine.CurrentContext.EvaluationStack.Push(StackItem.FromInterface(iterator));
Disposables.Add(iterator);
return(true);
}
return(false);
}
public void TestGeneratorAndDispose()
{
StorageIterator storageIterator = new StorageIterator(new List <KeyValuePair <StorageKey, StorageItem> >().GetEnumerator());
Assert.IsNotNull(storageIterator);
Action action = () => storageIterator.Dispose();
action.Should().NotThrow <Exception>();
}
public void TestKeyAndValueAndNext()
{
List <(StorageKey, StorageItem)> list = new List <(StorageKey, StorageItem)>();
StorageKey storageKey = new StorageKey();
storageKey.Key = new byte[1];
StorageItem storageItem = new StorageItem();
storageItem.Value = new byte[1];
list.Add((storageKey, storageItem));
StorageIterator storageIterator = new StorageIterator(list.GetEnumerator(), FindOptions.ValuesOnly, null);
storageIterator.Next();
Assert.AreEqual(new ByteString(new byte[1]), storageIterator.Value());
}
public void TestKeyAndValueAndNext()
{
List <KeyValuePair <StorageKey, StorageItem> > list = new List <KeyValuePair <StorageKey, StorageItem> >();
StorageKey storageKey = new StorageKey();
storageKey.Key = new byte[1];
StorageItem storageItem = new StorageItem();
storageItem.Value = new byte[1];
list.Add(new KeyValuePair <StorageKey, StorageItem>(storageKey, storageItem));
StorageIterator storageIterator = new StorageIterator(list.GetEnumerator());
storageIterator.Next();
Assert.AreEqual(new ByteArray(new byte[1]), storageIterator.Key());
Assert.AreEqual(new ByteArray(new byte[1]), storageIterator.Value());
}
