/// <summary>
/// Parses a single interactive command and executes it.
///
/// Returns null if successful and execution should continue, or the appropiate exit code.
/// </summary>
private int?RunOneInteraction()
{
bool continueInteraction;
string s = ReadStatement(out continueInteraction);
if (continueInteraction == false)
{
PythonContext.DispatchCommand(null); // Notify dispatcher that we're done
return(0);
}
if (String.IsNullOrEmpty(s))
{
// Is it an empty line?
Console.Write(String.Empty, Style.Out);
return(null);
}
SourceUnit su = Language.CreateSnippet(s, "<stdin>", SourceCodeKind.InteractiveCode);
PythonCompilerOptions pco = (PythonCompilerOptions)Language.GetCompilerOptions(Scope);
pco.Module |= ModuleOptions.ExecOrEvalCode;
Action action = delegate() {
try {
su.Compile(pco, ErrorSink).Run(Scope);
} catch (Exception e) {
if (e is SystemExitException)
{
throw;
}
// Need to handle exceptions in the delegate so that they're not wrapped
// in a TargetInvocationException
UnhandledException(e);
}
};
try {
PythonContext.DispatchCommand(action);
} catch (SystemExitException sx) {
object dummy;
return(sx.GetExitCode(out dummy));
}
return(null);
}
public void DispatchCommand(Action command)
{
_context.DispatchCommand(command);
}