internal void doShell()
{
var preprocessedCode = preprocessCode(headerCode); // not sure if this is needed
Evaluation.EvalInteraction(preprocessedCode);
logMessage(Evaluation.sbErr.ToString());
logMessage(Evaluation.sbOut.ToString());
while (true)
{
var msg = recvMessage(shellSocket);
try
{
switch (msg.Content)
{
case KernelRequest r:
kernelInfoRequest(msg, r);
break;
case ExecuteRequest r:
executeRequest(msg, r);
break;
case CompleteRequest r:
completeRequest(msg, r);
break;
case IntellisenseRequest r:
intellisenseRequest(msg, r);
break;
case ConnectRequest r:
connectRequest(msg, r);
break;
case ShutdownRequest r:
shutdownRequest(msg, r);
break;
case HistoryRequest r:
historyRequest(msg, r);
break;
case ObjectInfoRequest r:
objectInfoRequest(msg, r);
break;
case InspectRequest r:
inspectRequest(msg, r);
break;
default:
logMessage($"Unexpected content type on shell. msg_type is {msg.Header.msg_type} ");
break;
}
}
catch (Exception ex)
{
handleException(ex);
}
}
}
internal void executeRequest(KernelMessage msg, ExecuteRequest content)
{
Evaluation.sbOut.Clear();
Evaluation.sbErr.Clear();
Evaluation.sbPrint.Clear();
payload.Clear();
if (!content.silent)
{
executionCount++;
}
// sending busy
sendStateBusy(msg);
sendMessage(ioSocket, msg, "pyin", new Pyin()
{
code = content.code, execution_count = executionCount
});
// preprocess
var newCode = preprocessCode(content.code);
if (!String.IsNullOrEmpty(newCode))
{
// evaluate
try
{
(var value, var errors) = Evaluation.EvalInteractionNonThrowing(newCode);
if (errors.Length > 0)
{
var sb = errors.Aggregate(new StringBuilder(), (ag, n) => ag.AppendLine(n));
sendError(sb.ToString(), msg);
}
var executeReply = new ExecuteReplyOk()
{
status = "ok",
execution_count = executionCount,
payload = payload.ToArray(),
user_variables = new Dictionary <string, object>(),
user_expressions = new Dictionary <string, object>()
};
sendMessage(shellSocket, msg, "execute_reply", executeReply);
// send all the data
if (!content.silent)
{
var lastExpression = Evaluation.GetLastExpression();
if (lastExpression != null)
{
var printedResult = Printers.PrintVariable(lastExpression);
sendDisplayData(printedResult.ContentType, printedResult.Data, "pyout");
}
}
}
catch (AggregateException ae)
{
var esb = new StringBuilder();
esb.AppendLine(ae.Message);
foreach (var e in ae.InnerExceptions)
{
esb.AppendLine(e.Message);
}
sendError(esb.ToString(), msg);
}
catch (Exception ex)
{
var error = $"Expression evaluation failed: {ex.Message}\r\n {ex.StackTrace}";
sendError(error, msg);
}
}
if (Evaluation.sbPrint.Length > 0)
{
sendDisplayData("text/plain", Evaluation.sbPrint.ToString(), "display_data");
}
sendStateIdle(msg);
}