Mono.ILASM.Driver.DriverMain.ProcessFile C# (CSharp) Method

                        private void ProcessFile (string file_path)
                        {
                                if (!File.Exists (file_path)) {
                                        Console.WriteLine ("File does not exist: {0}",
                                                file_path);
                                        Environment.Exit (2);
                                }
                                Report.AssembleFile (file_path, null,
                                                target_string, output_file);
                                StreamReader reader = File.OpenText (file_path);
                                ILTokenizer scanner = new ILTokenizer (reader);

                                if (show_tokens)
                                        scanner.NewTokenEvent += new NewTokenEvent (ShowToken);
                                //if (show_method_def)
                                //        MethodTable.MethodDefinedEvent += new MethodDefinedEvent (ShowMethodDef);
                                //if (show_method_ref)
                                //       MethodTable.MethodReferencedEvent += new MethodReferencedEvent (ShowMethodRef);

                                if (scan_only) {
                                        ILToken tok;
                                        while ((tok = scanner.NextToken) != ILToken.EOF) {
                                                Console.WriteLine (tok);
                                        }
                                        return;
                                }

                                ILParser parser = new ILParser (codegen, scanner);
				codegen.BeginSourceFile (file_path);
                                try {
                                        if (show_parser)
                                                parser.yyparse (new ScannerAdapter (scanner),
                                                                new yydebug.yyDebugSimple ());
                                        else
                                                parser.yyparse (new ScannerAdapter (scanner),  null);
                                } catch (ILTokenizingException ilte) {
                                        Report.Error (ilte.Location, "syntax error at token '" + ilte.Token + "'");
                                } catch (Mono.ILASM.yyParser.yyException ye) {
                                        Report.Error (scanner.Reader.Location, ye.Message);
                                } catch (ILAsmException ie) {
                                        ie.FilePath = file_path;
                                        ie.Location = scanner.Reader.Location;
                                        throw;
                                } catch (Exception){
                                        Console.Write ("{0} ({1}, {2}): ",file_path, scanner.Reader.Location.line, scanner.Reader.Location.column);
                                        throw;
                                } finally {
					codegen.EndSourceFile ();
				}
                        }