// TODO proper exceptions
private static ExecutionState Oracle_Read(RuntimeVM vm)
{
if (vm.Stack.Count < 1)
{
return(ExecutionState.Fault);
}
var temp = vm.Stack.Pop();
if (temp.Type != VMType.String)
{
return(ExecutionState.Fault);
}
var url = temp.AsString();
if (vm.OracleReader == null)
{
return(ExecutionState.Fault);
}
url = url.Trim().ToLowerInvariant();
if (string.IsNullOrEmpty(url))
{
return(ExecutionState.Fault);
}
var result = vm.OracleReader(vm.Transaction.Hash, url);
return(ExecutionState.Running);
}