protected KernelBase()
{
_disposables = new CompositeDisposable();
Pipeline = new KernelCommandPipeline(this);
AddSetKernelMiddleware();
AddDirectiveMiddleware();
}
protected KernelBase()
{
_disposables = new CompositeDisposable();
Pipeline = new KernelCommandPipeline(this);
Pipeline.AddMiddleware(async(command, pipelineContext, next) =>
{
switch (command)
{
case SubmitCode submitCode:
var modified = false;
var directiveParser = BuildDirectiveParser(pipelineContext);
var lines = new Queue <string>(
submitCode.Code.Split(new[] { "\r\n", "\n" },
StringSplitOptions.None));
var unhandledLines = new List <string>();
while (lines.Count > 0)
{
var currentLine = lines.Dequeue();
var parseResult = directiveParser.Parse(currentLine);
if (parseResult.Errors.Count == 0)
{
modified = true;
await directiveParser.InvokeAsync(parseResult);
}
else
{
unhandledLines.Add(currentLine);
}
}
var code = string.Join("\n", unhandledLines);
if (modified)
{
if (string.IsNullOrWhiteSpace(code))
{
pipelineContext.OnExecute(context =>
{
context.OnNext(new CodeSubmissionEvaluated(submitCode));
context.OnCompleted();
return(Task.CompletedTask);
});
return;
}
else
{
submitCode.Code = code;
}
}
break;
}
await next(command, pipelineContext);
});
}