private static ExecutionState Runtime_TransferTokens(RuntimeVM Runtime)
{
ExpectStackSize(Runtime, 4);
VMObject temp;
var source = PopAddress(Runtime);
var destination = PopAddress(Runtime);
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for symbol");
var symbol = temp.AsString();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.Number, "expected number for amount");
var amount = temp.AsNumber();
Runtime.TransferTokens(symbol, source, destination, amount);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_WriteToken(RuntimeVM Runtime)
{
ExpectStackSize(Runtime, 3);
VMObject temp;
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for symbol");
var symbol = temp.AsString();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.Number, "expected number for token ID");
var tokenID = temp.AsNumber();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.Bytes, "expected bytes for ram");
var ram = temp.AsByteArray();
Runtime.WriteToken(symbol, tokenID, ram);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_Notify(RuntimeVM vm)
{
vm.Expect(vm.CurrentContext.Name != VirtualMachine.EntryContextName, "cannot notify in current context");
var kind = vm.Stack.Pop().AsEnum <EventKind>();
var address = vm.PopAddress();
var obj = vm.Stack.Pop();
var bytes = obj.Serialize();
vm.Notify(kind, address, bytes);
return(ExecutionState.Running);
}
private static TokenContent Runtime_ReadTokenInternal(RuntimeVM vm)
{
vm.ExpectStackSize(2);
var symbol = vm.PopString("symbol");
var tokenID = vm.PopNumber("token ID");
var result = vm.ReadToken(symbol, tokenID);
vm.Expect(result.TokenID == tokenID, "retrived NFT content does not have proper tokenID");
return(result);
}
private static ExecutionState Runtime_ReadToken(RuntimeVM Runtime)
{
ExpectStackSize(Runtime, 2);
VMObject temp;
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for symbol");
var symbol = temp.AsString();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.Number, "expected number for token ID");
var tokenID = temp.AsNumber();
var content = Runtime.ReadToken(symbol, tokenID);
var result = new VMObject();
result.SetValue(content.RAM, VMType.Bytes);
Runtime.Stack.Push(result);
return(ExecutionState.Running);
}
private static TokenContent Runtime_ReadTokenInternal(RuntimeVM Runtime)
{
ExpectStackSize(Runtime, 2);
VMObject temp;
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for symbol");
var symbol = temp.AsString();
var tokenID = PopNumber(Runtime, "token ID");
return(Runtime.ReadToken(symbol, tokenID));
}
private static ExecutionState Runtime_BurnTokens(RuntimeVM Runtime)
{
ExpectStackSize(Runtime, 3);
VMObject temp;
var source = PopAddress(Runtime);
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for symbol");
var symbol = temp.AsString();
var amount = PopNumber(Runtime, "amount");
if (Runtime.Nexus.HasGenesis)
{
Runtime.Expect(symbol != DomainSettings.FuelTokenSymbol && symbol != DomainSettings.StakingTokenSymbol, "cannot mint system tokens after genesis");
}
Runtime.BurnTokens(symbol, source, amount);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_TransferBalance(RuntimeVM Runtime)
{
ExpectStackSize(Runtime, 3);
VMObject temp;
var source = PopAddress(Runtime);
var destination = PopAddress(Runtime);
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for symbol");
var symbol = temp.AsString();
var token = Runtime.GetToken(symbol);
Runtime.Expect(token.IsFungible(), "must be fungible");
var amount = Runtime.GetBalance(symbol, source);
Runtime.TransferTokens(symbol, source, destination, amount);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_SwapTokens(RuntimeVM vm)
{
vm.ExpectStackSize(5);
VMObject temp;
temp = vm.Stack.Pop();
vm.Expect(temp.Type == VMType.String, "expected string for target chain");
var targetChain = temp.AsString();
var source = vm.PopAddress();
var destination = vm.PopAddress();
temp = vm.Stack.Pop();
vm.Expect(temp.Type == VMType.String, "expected string for symbol");
var symbol = temp.AsString();
var value = vm.PopNumber("amount");
vm.SwapTokens(vm.Chain.Name, source, targetChain, destination, symbol, value);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_CreateChain(RuntimeVM Runtime)
{
ExpectStackSize(Runtime, 3);
VMObject temp;
var source = PopAddress(Runtime);
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for organization");
var org = temp.AsString();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for name");
var name = temp.AsString();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for parent");
var parentName = temp.AsString();
Runtime.CreateChain(source, org, name, parentName);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_CreateOrganization(RuntimeVM Runtime)
{
ExpectStackSize(Runtime, 4);
VMObject temp;
var source = PopAddress(Runtime);
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for ID");
var ID = temp.AsString();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for name");
var name = temp.AsString();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.Bytes, "expected bytes for script");
var script = temp.AsByteArray();
Runtime.CreateOrganization(source, ID, name, script);
return(ExecutionState.Running);
}
private static ExecutionState Data_Get(RuntimeVM runtime)
{
var key = runtime.Stack.Pop();
var key_bytes = key.AsByteArray();
runtime.Expect(key_bytes.Length > 0, "invalid key");
var value_bytes = runtime.Storage.Get(key_bytes);
var val = new VMObject();
val.SetValue(value_bytes, VMType.Bytes);
runtime.Stack.Push(val);
return(ExecutionState.Running);
}
public bool RemoveMember(RuntimeVM Runtime, Address from, Address target)
{
Runtime.Expect(Runtime.IsRootChain(), "must be root chain");
var list = GetMemberList();
if (!list.Contains <Address>(target))
{
return(false);
}
list.Remove <Address>(target);
Runtime.Notify(EventKind.OrganizationRemove, from, new OrganizationEventData(this.ID, target));
return(true);
}
private static ExecutionState Runtime_CreateToken(RuntimeVM Runtime)
{
ExpectStackSize(Runtime, 9);
VMObject temp;
var source = PopAddress(Runtime);
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for symbol");
var symbol = temp.AsString();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for name");
var name = temp.AsString();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for platform");
var platform = temp.AsString();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.Bytes, "expected bytes for hash");
var hash = Serialization.Unserialize <Hash>(temp.AsByteArray());
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.Number, "expected number for maxSupply");
var maxSupply = temp.AsNumber();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.Number, "expected number for decimals");
var decimals = (int)temp.AsNumber();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.Enum, "expected enum for flags");
var flags = temp.AsEnum <TokenFlags>();
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.Bytes, "expected bytes for script");
var script = temp.AsByteArray();
Runtime.CreateToken(source, symbol, name, platform, hash, maxSupply, decimals, flags, script);
return(ExecutionState.Running);
}
private static ExecutionState Data_Delete(RuntimeVM vm)
{
vm.ExpectStackSize(1);
// for security reasons we don't accept the caller to specify a contract name
var contractName = vm.CurrentContext.Name;
vm.Expect(vm.ContractDeployed(contractName), $"contract {contractName} is not deployed");
var field = vm.PopString("field");
var key = SmartContract.GetKeyForField(contractName, field, false);
var contractAddress = SmartContract.GetAddressForName(contractName);
vm.CallNativeContext(NativeContractKind.Storage, nameof(StorageContract.DeleteData), contractAddress, key);
return(ExecutionState.Running);
}
private static ExecutionState Organization_AddMember(RuntimeVM Runtime)
{
ExpectStackSize(Runtime, 3);
VMObject temp;
var source = PopAddress(Runtime);
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for name");
var name = temp.AsString();
var target = PopAddress(Runtime);
Runtime.AddMember(name, source, target);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_BurnToken(RuntimeVM Runtime)
{
ExpectStackSize(Runtime, 3);
VMObject temp;
var source = PopAddress(Runtime);
temp = Runtime.Stack.Pop();
Runtime.Expect(temp.Type == VMType.String, "expected string for symbol");
var symbol = temp.AsString();
var tokenID = PopNumber(Runtime, "token ID");
Runtime.BurnToken(symbol, source, tokenID);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_TokenExists(RuntimeVM vm)
{
vm.ExpectStackSize(1);
var temp = vm.Stack.Pop();
vm.Expect(temp.Type == VMType.String, "expected string for symbol");
var symbol = temp.AsString();
var success = vm.TokenExists(symbol);
var result = new VMObject();
result.SetValue(success);
vm.Stack.Push(result);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_TransferToken(RuntimeVM vm)
{
vm.ExpectStackSize(4);
VMObject temp;
var source = vm.PopAddress();
var destination = vm.PopAddress();
temp = vm.Stack.Pop();
vm.Expect(temp.Type == VMType.String, "expected string for symbol");
var symbol = temp.AsString();
var tokenID = vm.PopNumber("token ID");
vm.TransferToken(symbol, source, destination, tokenID);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_TransferBalance(RuntimeVM vm)
{
vm.ExpectStackSize(3);
var source = vm.PopAddress();
var destination = vm.PopAddress();
var symbol = vm.PopString("symbol");
var token = vm.GetToken(symbol);
vm.Expect(token.IsFungible(), "must be fungible");
var amount = vm.GetBalance(symbol, source);
vm.TransferTokens(symbol, source, destination, amount);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_MintTokens(RuntimeVM vm)
{
vm.ExpectStackSize(4);
var source = vm.PopAddress();
var destination = vm.PopAddress();
var symbol = vm.PopString("symbol");
var amount = vm.PopNumber("amount");
if (vm.Nexus.HasGenesis)
{
var isMinter = vm.IsMintingAddress(source, symbol);
vm.Expect(isMinter, $"{source} is not a valid minting address for {symbol}");
}
vm.MintTokens(symbol, source, destination, amount);
return(ExecutionState.Running);
}
private static ExecutionState Map_Remove(RuntimeVM vm)
{
vm.ExpectStackSize(2);
// for security reasons we don't accept the caller to specify a contract name
var contractName = vm.CurrentContext.Name;
var field = vm.PopString("field");
var mapKey = SmartContract.GetKeyForField(contractName, field, false);
var entry_obj = vm.Stack.Pop();
var entryKey = entry_obj.AsByteArray();
vm.Expect(entryKey.Length > 0, "invalid entry key");
var map = new StorageMap(mapKey, vm.Storage);
map.Remove <byte[]>(entryKey);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_UpgradeContract(RuntimeVM vm)
{
var tx = vm.Transaction;
Throw.IfNull(tx, nameof(tx));
var pow = tx.Hash.GetDifficulty();
vm.Expect(pow >= (int)ProofOfWork.Minimal, "expected proof of work");
vm.ExpectStackSize(1);
var from = vm.PopAddress();
vm.Expect(from.IsUser, "address must be user");
vm.Expect(vm.IsStakeMaster(from), "needs to be master");
vm.Expect(vm.IsWitness(from), "invalid witness");
var contractName = vm.PopString("contractName");
var contractAddress = SmartContract.GetAddressForName(contractName);
var deployed = vm.Chain.IsContractDeployed(vm.Storage, contractAddress);
vm.Expect(deployed, $"{contractName} does not exist");
byte[] script;
ContractInterface abi;
bool isNative = Nexus.IsNativeContract(contractName);
vm.Expect(!isNative, "cannot upgrade native contract");
bool isToken = ValidationUtils.IsValidTicker(contractName);
script = vm.PopBytes("contractScript");
var abiBytes = vm.PopBytes("contractABI");
abi = ContractInterface.FromBytes(abiBytes);
var fuelCost = vm.GetGovernanceValue(Nexus.FuelPerContractDeployTag);
// governance value is in usd fiat, here convert from fiat to fuel amount
fuelCost = vm.GetTokenQuote(DomainSettings.FiatTokenSymbol, DomainSettings.FuelTokenSymbol, fuelCost);
// burn the "cost" tokens
vm.BurnTokens(DomainSettings.FuelTokenSymbol, from, fuelCost);
// ABI validation
ValidateABI(vm, contractName, abi, isNative);
SmartContract oldContract;
if (isToken)
{
oldContract = vm.Nexus.GetTokenContract(vm.Storage, contractName);
}
else
{
oldContract = vm.Chain.GetContractByName(vm.Storage, contractName);
}
vm.Expect(oldContract != null, "could not fetch previous contract");
vm.Expect(abi.Implements(oldContract.ABI), "new abi does not implement all methods of previous abi");
vm.Expect(vm.InvokeTrigger(false, script, contractName, abi, AccountTrigger.OnUpgrade.ToString(), from) == TriggerResult.Success, "OnUpgrade trigger failed");
if (isToken)
{
vm.Nexus.UpgradeTokenContract(vm.RootStorage, contractName, script, abi);
}
else
{
vm.Chain.UpgradeContract(vm.Storage, contractName, script, abi);
}
vm.Notify(EventKind.ContractUpgrade, from, contractName);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_DeployContract(RuntimeVM vm)
{
var tx = vm.Transaction;
Throw.IfNull(tx, nameof(tx));
var pow = tx.Hash.GetDifficulty();
vm.Expect(pow >= (int)ProofOfWork.Minimal, "expected proof of work");
vm.ExpectStackSize(1);
var from = vm.PopAddress();
vm.Expect(from.IsUser, "address must be user");
if (vm.Nexus.HasGenesis)
{
//Runtime.Expect(org != DomainSettings.ValidatorsOrganizationName, "cannot deploy contract via this organization");
vm.Expect(vm.IsStakeMaster(from), "needs to be master");
}
vm.Expect(vm.IsWitness(from), "invalid witness");
var contractName = vm.PopString("contractName");
var contractAddress = SmartContract.GetAddressForName(contractName);
var deployed = vm.Chain.IsContractDeployed(vm.Storage, contractAddress);
// TODO
if (vm.ProtocolVersion >= 2)
{
vm.Expect(!deployed, $"{contractName} is already deployed");
}
else
if (deployed)
{
return(ExecutionState.Running);
}
byte[] script;
ContractInterface abi;
bool isNative = Nexus.IsNativeContract(contractName);
if (isNative)
{
if (contractName == "validator" && vm.GenesisAddress == Address.Null)
{
vm.Nexus.Initialize(from);
}
script = new byte[] { (byte)Opcode.RET };
var contractInstance = vm.Nexus.GetNativeContractByAddress(contractAddress);
abi = contractInstance.ABI;
}
else
{
if (ValidationUtils.IsValidTicker(contractName))
{
throw new VMException(vm, "use createToken instead for this kind of contract");
}
else
{
vm.Expect(ValidationUtils.IsValidIdentifier(contractName), "invalid contract name");
}
var isReserved = ValidationUtils.IsReservedIdentifier(contractName);
if (isReserved && vm.IsWitness(vm.GenesisAddress))
{
isReserved = false;
}
vm.Expect(!isReserved, $"name '{contractName}' reserved by system");
script = vm.PopBytes("contractScript");
var abiBytes = vm.PopBytes("contractABI");
abi = ContractInterface.FromBytes(abiBytes);
var fuelCost = vm.GetGovernanceValue(Nexus.FuelPerContractDeployTag);
// governance value is in usd fiat, here convert from fiat to fuel amount
fuelCost = vm.GetTokenQuote(DomainSettings.FiatTokenSymbol, DomainSettings.FuelTokenSymbol, fuelCost);
// burn the "cost" tokens
vm.BurnTokens(DomainSettings.FuelTokenSymbol, from, fuelCost);
}
// ABI validation
ValidateABI(vm, contractName, abi, isNative);
var success = vm.Chain.DeployContractScript(vm.Storage, from, contractName, contractAddress, script, abi);
vm.Expect(success, $"deployment of {contractName} failed");
var constructor = abi.FindMethod(SmartContract.ConstructorName);
if (constructor != null)
{
vm.CallContext(contractName, constructor, from);
}
vm.Notify(EventKind.ContractDeploy, from, contractName);
return(ExecutionState.Running);
}
