public Tuple <string, List <IError> > Format(string inputFile)
{
string source = File.ReadAllText(inputFile);
VM.Parsing.AST.Tree tree;
var errors = VM.Parser.TryParse(source, out tree);
if (errors.Count > 0)
{
return(new Tuple <string, List <IError> >("", errors));
}
var treeWalker = new Walker();
var fmt = new PrettyPrinter();
treeWalker.Walk(fmt, tree);
return(new Tuple <string, List <IError> >(fmt.GetOutput(), new List <IError>()));
}