mcs/ilasm/Driver.cs

   1 //
   2 // Mono.ILASM.Driver
   3 //    Main Command line interface for Mono ILasm Compiler
   4 //
   5 // Author(s):
   6 //  Jackson Harper (Jackson@LatitudeGeo.com)
   7 //
   8 // (C) 2003 Jackson Harper, All rights reserved
   9 //
  10
  11 using System;
  12 using System.IO;
  13 using System.Reflection;
  14 using System.Collections;
  15
  16 namespace Mono.ILASM {
  17
  18         public class Driver {
  19
  20                 enum Target {
  21                         Dll,
  22                         Exe
  23                 }
  24
  25                 public static int Main (string[] args)
  26                 {
  27                         // Do everything in Invariant
  28                         System.Threading.Thread.CurrentThread.CurrentCulture = System.Globalization.CultureInfo.InvariantCulture;
  29
  30                         DriverMain driver = new DriverMain (args);
  31                         try {
  32                                 driver.Run ();
  33                         } catch (Exception e) {
  34                                 Console.WriteLine (e);
  35                                 Console.WriteLine ("Error while compiling.");
  36                                 return 1;
  37                         }
  38                         Console.WriteLine ("Compilation succeeded");
  39                         return 0;
  40                 }
  41
  42                 private class DriverMain {
  43
  44                         private ArrayList il_file_list;
  45                         private Report report;
  46                         private string output_file;
  47                         private Target target = Target.Exe;
  48                         private string target_string = "exe";
  49                         private bool quiet = false;
  50                         private bool show_tokens = false;
  51                         private bool show_method_def = false;
  52                         private bool show_method_ref = false;
  53                         private bool show_parser = false;
  54                         private bool scan_only = false;
  55                         private CodeGen codegen;
  56
  57                         public DriverMain (string[] args)
  58                         {
  59                                 il_file_list = new ArrayList ();
  60                                 ParseArgs (args);
  61                                 report = new Report (quiet);
  62                         }
  63
  64                         public void Run ()
  65                         {
  66                                 try {
  67                                         if (il_file_list.Count == 0)
  68                                                 Usage ();
  69                                         if (output_file == null)
  70                                                 output_file = CreateOutputFile ();
  71                                         codegen = new CodeGen (output_file, target == Target.Dll, true, report);
  72                                         foreach (string file_path in il_file_list)
  73                                                 ProcessFile (file_path);
  74                                         if (scan_only)
  75                                                 return;
  76
  77                                         codegen.Write ();
  78                                 } catch {
  79                                         throw;
  80                                 }
  81                         }
  82
  83                         private void ProcessFile (string file_path)
  84                         {
  85                                 if (!File.Exists (file_path)) {
  86                                         Console.WriteLine ("File does not exist: {0}",
  87                                                 file_path);
  88                                         Environment.Exit (2);
  89                                 }
  90                                 report.AssembleFile (file_path, null,
  91                                                 target_string, output_file);
  92                                 StreamReader reader = File.OpenText (file_path);
  93                                 ILTokenizer scanner = new ILTokenizer (reader);
  94
  95                                 if (show_tokens)
  96                                         scanner.NewTokenEvent += new NewTokenEvent (ShowToken);
  97                                 //if (show_method_def)
  98                                 //        MethodTable.MethodDefinedEvent += new MethodDefinedEvent (ShowMethodDef);
  99                                 //if (show_method_ref)
 100                                 //       MethodTable.MethodReferencedEvent += new MethodReferencedEvent (ShowMethodRef);
 101
 102                                 if (scan_only) {
 103                                         ILToken tok;
 104                                         while ((tok = scanner.NextToken) != ILToken.EOF) {
 105                                                 Console.WriteLine (tok);
 106                                         }
 107                                         return;
 108                                 }
 109
 110                                 ILParser parser = new ILParser (codegen, scanner);
 111                                 try {
 112                                         if (show_parser)
 113                                                 parser.yyparse (new ScannerAdapter (scanner),
 114                                                                 new yydebug.yyDebugSimple ());
 115                                         else
 116                                                 parser.yyparse (new ScannerAdapter (scanner),  null);
 117                                 } catch {
 118                                         Console.WriteLine ("Error at: " + scanner.Reader.Location);
 119                                         throw;
 120                                 }
 121                         }
 122
 123                         public void ShowToken (object sender, NewTokenEventArgs args)
 124                         {
 125                                 Console.WriteLine ("token: '{0}'", args.Token);
 126                         }
 127                         /*
 128                         public void ShowMethodDef (object sender, MethodDefinedEventArgs args)
 129                         {
 130                                 Console.WriteLine ("***** Method defined *****");
 131                                 Console.WriteLine ("-- signature:   {0}", args.Signature);
 132                                 Console.WriteLine ("-- name:        {0}", args.Name);
 133                                 Console.WriteLine ("-- return type: {0}", args.ReturnType);
 134                                 Console.WriteLine ("-- is in table: {0}", args.IsInTable);
 135                                 Console.WriteLine ("-- method atts: {0}", args.MethodAttributes);
 136                                 Console.WriteLine ("-- impl atts:   {0}", args.ImplAttributes);
 137                                 Console.WriteLine ("-- call conv:   {0}", args.CallConv);
 138                         }
 139
 140                         public void ShowMethodRef (object sender, MethodReferencedEventArgs args)
 141                         {
 142                                 Console.WriteLine ("***** Method referenced *****");
 143                                 Console.WriteLine ("-- signature:   {0}", args.Signature);
 144                                 Console.WriteLine ("-- name:        {0}", args.Name);
 145                                 Console.WriteLine ("-- return type: {0}", args.ReturnType);
 146                                 Console.WriteLine ("-- is in table: {0}", args.IsInTable);
 147                         }
 148                         */
 149                         private void ParseArgs (string[] args)
 150                         {
 151                                 string command_arg;
 152                                 foreach (string str in args) {
 153                                         if ((str[0] != '-') && (str[0] != '/')) {
 154                                                 il_file_list.Add (str);
 155                                                 continue;
 156                                         }
 157                                         switch (GetCommand (str, out command_arg)) {
 158                                         case "out":
 159                                         case "output":
 160                                                 output_file = command_arg;
 161                                                 break;
 162                                         case "exe":
 163                                                 target = Target.Exe;
 164                                                 target_string = "exe";
 165                                                 break;
 166                                         case "dll":
 167                                                 target = Target.Dll;
 168                                                 target_string = "dll";
 169                                                 break;
 170                                         case "quiet":
 171                                                 quiet = true;
 172                                                 break;
 173                                         // Stubs to stay commandline compatible with MS
 174                                         case "listing":
 175                                         case "nologo":
 176                                         case "debug":
 177                                         case "clock":
 178                                         case "error":
 179                                         case "subsystem":
 180                                         case "flags":
 181                                         case "alignment":
 182                                         case "base":
 183                                         case "key":
 184                                         case "resource":
 185                                                 break;
 186                                         case "scan_only":
 187                                                 scan_only = true;
 188                                                 break;
 189                                         case "show_tokens":
 190                                                 show_tokens = true;
 191                                                 break;
 192                                         case "show_method_def":
 193                                                 show_method_def = true;
 194                                                 break;
 195                                         case "show_method_ref":
 196                                                 show_method_ref = true;
 197                                                 break;
 198                                         case "show_parser":
 199                                                 show_parser = true;
 200                                                 break;
 201                                         case "-about":
 202                                                 if (str[0] != '-')
 203                                                         break;
 204                                                 About ();
 205                                                 break;
 206                                         case "-version":
 207                                                 if (str[0] != '-')
 208                                                         break;
 209                                                 Version ();
 210                                                 break;
 211                                         default:
 212                                                 if (str [0] == '-')
 213                                                         break;
 214                                                 il_file_list.Add (str);
 215                                                 break;
 216                                         }
 217                                 }
 218                         }
 219
 220                         private string GetCommand (string str, out string command_arg)
 221                         {
 222                                 int end_index = str.IndexOfAny (new char[] {':', '='}, 1);
 223                                 string command = str.Substring (1,
 224                                         end_index == -1 ? str.Length - 1 : end_index - 1);
 225
 226                                 if (end_index != -1) {
 227                                         command_arg = str.Substring (end_index+1);
 228                                 } else {
 229                                         command_arg = null;
 230                                 }
 231
 232                                 return command.ToLower ();
 233                         }
 234
 235                         /// <summary>
 236                         ///   Get the first file name and makes it into an output file name
 237                         /// </summary>
 238                         private string CreateOutputFile ()
 239                         {
 240                                 string file_name = (string)il_file_list[0];
 241                                 int ext_index = file_name.LastIndexOf ('.');
 242
 243                                 if (ext_index == -1)
 244                                         ext_index = file_name.Length;
 245
 246                                 return String.Format ("{0}.{1}", file_name.Substring (0, ext_index),
 247                                         target_string);
 248                         }
 249
 250                         private void Usage ()
 251                         {
 252                                 Console.WriteLine ("Mono ILasm compiler\n" +
 253                                         "ilasm [options] source-files\n" +
 254                                         "   --about            About the Mono ILasm compiler\n" +
 255                                         "   --version          Print the version number of the Mono ILasm compiler\n" +
 256                                         "   /output:file_name  Specifies output file.\n" +
 257                                         "   /exe               Compile to executable.\n" +
 258                                         "   /dll               Compile to library.\n" +
 259                                         "Options can be of the form -option or /option\n");
 260                                 Environment.Exit (1);
 261                         }
 262
 263                         private void About ()
 264                         {
 265                                 Console.WriteLine (
 266                                         "For more information on Mono, visit the project Web site\n" +
 267                                         "   http://www.go-mono.com\n\n");
 268                                 Environment.Exit (0);
 269                         }
 270
 271                         private void Version ()
 272                         {
 273                                 string version = Assembly.GetExecutingAssembly ().GetName ().Version.ToString ();
 274                                 Console.WriteLine ("Mono ILasm compiler version {0}", version);
 275                                 Environment.Exit (0);
 276                         }
 277
 278                 }
 279         }
 280 }
 281