/// <summary> /// Generates transaction. /// That transaction can be added to a produced block or broadcasted - if <see cref="GeneratedTransaction"/> is used as <see cref="T"/>. /// That transaction can be used in <see cref="CallableContract.Call(Nethermind.Core.BlockHeader,string,Nethermind.Core.Transaction)"/> if <see cref="SystemTransaction"/> is used as <see cref="T"/>. /// </summary> /// <param name="functionName">Function in contract that is called by the transaction.</param> /// <param name="sender">Sender of the transaction - caller of the function.</param> /// <param name="gasLimit">Gas limit for generated transaction.</param> /// <param name="arguments">Arguments to the function.</param> /// <typeparam name="T">Type of <see cref="Transaction"/>.</typeparam> /// <returns>Transaction.</returns> protected Transaction GenerateTransaction <T>(string functionName, Address sender, long gasLimit, params object[] arguments) where T : Transaction, new() => GenerateTransaction <T>(ContractAddress, AbiEncoder.Encode(AbiDefinition.GetFunction(functionName).GetCallInfo(), arguments), sender, gasLimit);
protected object[] DecodeReturnData(string functionName, byte[] data)
{
return(_abiEncoder.Decode(AbiDefinition.GetFunction(functionName).GetReturnInfo(), data));
}
protected object[] DecodeReturnData(string functionName, byte[] data)
{
AbiEncodingInfo abiEncodingInfo = AbiDefinition.GetFunction(functionName).GetReturnInfo();
return(DecodeData(abiEncodingInfo, data));
}
protected LogEntry GetSearchLogEntry(string eventName, byte[] data = null, params Keccak[] topics)
{
Keccak[] eventNameTopic = { AbiDefinition.GetEvent(eventName).GetHash() };
topics = topics.Length == 0 ? eventNameTopic : eventNameTopic.Concat(topics).ToArray();
return(new LogEntry(ContractAddress, data ?? Array.Empty <byte>(), topics));
}
/// <summary>
/// Creates contract
/// </summary>
/// <param name="abiEncoder">Binary interface encoder/decoder.</param>
/// <param name="contractAddress">Address where contract is deployed.</param>
/// <param name="abiDefinition">Binary definition of contract.</param>
protected Contract(IAbiEncoder abiEncoder, Address contractAddress, AbiDefinition abiDefinition = null)
{
AbiEncoder = abiEncoder ?? throw new ArgumentNullException(nameof(abiEncoder));
ContractAddress = contractAddress ?? throw new ArgumentNullException(nameof(contractAddress));
AbiDefinition = abiDefinition ?? new AbiDefinitionParser().Parse(GetType());
}