public IDataReader Create(
object resultHandle,
NativeExecutionContext nativeExecutionContext)
{
// TODO: Add a data reader that supports native access to the SQLite engine
throw new NotImplementedException();
}
internal ExecutionContext GetContractContext(SmartContract contract)
{
if (HasContract(contract.Name))
{
// TODO this needs to suport non-native contexts too..
var context = new NativeExecutionContext(contract);
return(context);
}
return(null);
}
/// <summary>
/// Deletes all blocks starting at the specified hash.
/// </summary>
/*
* public void DeleteBlocks(Hash targetHash)
* {
* var targetBlock = FindBlockByHash(targetHash);
* Throw.IfNull(targetBlock, nameof(targetBlock));
*
* var currentBlock = this.LastBlock;
* while (true)
* {
* Throw.IfNull(currentBlock, nameof(currentBlock));
*
* var changeSet = _blockChangeSets[currentBlock.Hash];
* changeSet.Undo();
*
* _blockChangeSets.Remove(currentBlock.Hash);
* _blockHeightMap.Remove(currentBlock.Height);
* _blocks.Remove(currentBlock.Hash);
*
* currentBlock = FindBlockByHash(currentBlock.PreviousHash);
*
* if (currentBlock.PreviousHash == targetHash)
* {
* break;
* }
* }
* }*/
internal ExecutionContext GetContractContext(StorageContext storage, SmartContract contract)
{
if (!IsContractDeployed(storage, contract.Address))
{
throw new ChainException($"contract {contract.Name} not deployed on {Name} chain");
}
// TODO this needs to suport non-native contexts too..
var context = new NativeExecutionContext(contract);
return(context);
}
internal ExecutionContext GetContractContext(SmartContract contract)
{
if (_contractContexts.ContainsKey(contract.Name))
{
return(_contractContexts[contract.Name]);
}
if (HasContract(contract.Name))
{
// TODO this needs to suport non-native contexts too..
var context = new NativeExecutionContext(contract);
this._contractContexts[contract.Name] = context;
return(context);
}
return(null);
}
