/// <summary>
/// Invoke method
/// </summary>
/// <param name="method">Method</param>
/// <param name="engine">Execution engine</param>
/// <returns>Return false if something is wrong</returns>
public bool Invoke(byte[] method, ExecutionEngineBase engine)
{
var hash = method.Length == 4
? BitConverter.ToUInt32(method, 0)
: GetMethodHash(Encoding.ASCII.GetString(method));
void InvokeOnSysCall(SysCallResult result) => OnSysCall?.Invoke(this, new SysCallArgs(engine, GetMethodName(hash), hash, result));
if (!_entries.TryGetValue(hash, out var entry))
{
InvokeOnSysCall(SysCallResult.NotFound);
return(false);
}
if (!engine.IncreaseGas(entry.GasCost))
{
InvokeOnSysCall(SysCallResult.OutOfGas);
return(false);
}
var ret = entry.MethodHandler(engine);
InvokeOnSysCall(ret ? SysCallResult.True : SysCallResult.False);
return(ret);
}
/// <summary>
/// Invoke
/// </summary>
/// <param name="method">Method name</param>
/// <param name="engine">Execution engine</param>
/// <returns>Return false if something wrong</returns>
public bool Invoke(string method, IExecutionEngine engine)
{
if (!Entries.TryGetValue(method, out delHandler func))
{
OnSysCall?.Invoke(this, new SysCallArgs(engine, method, SysCallArgs.EResult.NotFound));
return(false);
}
var ret = func(engine);
OnSysCall?.Invoke(this, new SysCallArgs(engine, method, ret ? SysCallArgs.EResult.True : SysCallArgs.EResult.False));
return(ret);
}