public void Start(bool shouldLoop = true)
{
string command = null;
var interpreter = new MutASTVisitor(new InterpreterState(), @out);
do
{
// prompt the user for a command
@out.Prompt("> ");
// Read the command from the input stream
try
{
command = @in.ReadLine().Trim();
}
catch (IOException ioe)
{
@out.Error(ioe.StackTrace);
break;
}
// If the user wants to exit, exit
if (string.Equals(command, "quit", StringComparison.OrdinalIgnoreCase) ||
string.Equals(command, "q", StringComparison.OrdinalIgnoreCase) ||
string.Equals(command, "exit", StringComparison.OrdinalIgnoreCase))
{
break;
}
// Otherwise, attempt to parse the command
try
{
var ast = CommandToMutAST.Transform(command);
ast.Accept(interpreter);
}
catch (Exception e)
{
@out.Error(e.Message);
@out.Error(e.StackTrace);
}
} while (shouldLoop);
}
public void SetUp()
{
state = new InterpreterState();
visitor = new MutASTVisitor(state, new Output());
}