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