mcs/mcs/report.cs

   1 //
   2 // report.cs: report errors and warnings.
   3 //
   4 // Author: Miguel de Icaza (miguel@ximian.com)
   5 //
   6 // (C) 2001 Ximian, Inc. (http://www.ximian.com)
   7 //
   8
   9 //
  10 // FIXME: currently our class library does not support custom number format strings
  11 //
  12 using System;
  13 using System.Text;
  14 using System.Collections;
  15 using System.Diagnostics;
  16
  17 namespace Mono.CSharp {
  18
  19         /// <summary>
  20         ///   This class is used to report errors and warnings t te user.
  21         /// </summary>
  22         public class Report {
  23                 /// <summary>
  24                 ///   Errors encountered so far
  25                 /// </summary>
  26                 static public int Errors;
  27
  28                 /// <summary>
  29                 ///   Warnings encountered so far
  30                 /// </summary>
  31                 static public int Warnings;
  32
  33                 /// <summary>
  34                 ///   Whether errors should be throw an exception
  35                 /// </summary>
  36                 static public bool Fatal;
  37
  38                 /// <summary>
  39                 ///   Whether warnings should be considered errors
  40                 /// </summary>
  41                 static public bool WarningsAreErrors;
  42
  43                 /// <summary>
  44                 ///   Whether to dump a stack trace on errors.
  45                 /// </summary>
  46                 static public bool Stacktrace;
  47
  48                 //
  49                 // If the 'expected' error code is reported then the
  50                 // compilation succeeds.
  51                 //
  52                 // Used for the test suite to excercise the error codes
  53                 //
  54                 static int expected_error = 0;
  55
  56                 //
  57                 // Keeps track of the warnings that we are ignoring
  58                 //
  59                 static Hashtable warning_ignore_table;
  60
  61                 static void Check (int code)
  62                 {
  63                         if (code == expected_error){
  64                                 if (Fatal)
  65                                         throw new Exception ();
  66
  67                                 Environment.Exit (0);
  68                         }
  69                 }
  70
  71                 static public void RealError (string msg)
  72                 {
  73                         Errors++;
  74                         Console.WriteLine (msg);
  75
  76                         if (Stacktrace)
  77                                 Console.WriteLine (new StackTrace ().ToString ());
  78                         if (Fatal)
  79                                 throw new Exception (msg);
  80                 }
  81
  82                 static public void Error (int code, Location l, string text)
  83                 {
  84                         if (code < 0)
  85                                 code = 8000-code;
  86
  87                         string msg = String.Format (
  88                                 "{0}({1}) error CS{2:0000}: {3}", l.Name, l.Row, code, text);
  89 //                              "{0}({1}) error CS{2}: {3}", l.Name, l.Row, code, text);
  90
  91                         RealError (msg);
  92                         Check (code);
  93                 }
  94
  95                 static public void Warning (int code, Location l, string text)
  96                 {
  97                         if (code < 0)
  98                                 code = 8000-code;
  99
 100                         if (warning_ignore_table != null){
 101                                 if (warning_ignore_table.Contains (code))
 102                                         return;
 103                         }
 104
 105                         if (WarningsAreErrors)
 106                                 Error (code, l, text);
 107                         else {
 108                                 string row;
 109
 110                                 if (Location.IsNull (l))
 111                                         row = "";
 112                                 else
 113                                         row = l.Row.ToString ();
 114
 115                                 Console.WriteLine (String.Format (
 116                                         "{0}({1}) warning CS{2:0000}: {3}",
 117 //                                      "{0}({1}) warning CS{2}: {3}",
 118                                         l.Name,  row, code, text));
 119                                 Warnings++;
 120                                 Check (code);
 121
 122                                 if (Stacktrace)
 123                                         Console.WriteLine (new StackTrace ().ToString ());
 124                         }
 125                 }
 126
 127                 static public void Warning (int code, string text)
 128                 {
 129                         Warning (code, Location.Null, text);
 130                 }
 131
 132                 static public void Warning (int code, int level, string text)
 133                 {
 134                         if (RootContext.WarningLevel >= level)
 135                                 Warning (code, Location.Null, text);
 136                 }
 137
 138                 static public void Warning (int code, int level, Location l, string text)
 139                 {
 140                         if (RootContext.WarningLevel >= level)
 141                                 Warning (code, l, text);
 142                 }
 143
 144                 static public void Error (int code, string text)
 145                 {
 146                         if (code < 0)
 147                                 code = 8000-code;
 148
 149                         string msg = String.Format ("error CS{0:0000}: {1}", code, text);
 150 //                      string msg = String.Format ("error CS{0}: {1}", code, text);
 151
 152                         RealError (msg);
 153                         Check (code);
 154                 }
 155
 156                 static public void Message (Message m)
 157                 {
 158                         if (m is ErrorMessage)
 159                                 Error (m.code, m.text);
 160                         else
 161                                 Warning (m.code, m.text);
 162                 }
 163
 164                 static public void SetIgnoreWarning (int code)
 165                 {
 166                         if (warning_ignore_table == null)
 167                                 warning_ignore_table = new Hashtable ();
 168
 169                         warning_ignore_table [code] = true;
 170                 }
 171
 172                 static public int ExpectedError {
 173                         set {
 174                                 expected_error = value;
 175                         }
 176                         get {
 177                                 return expected_error;
 178                         }
 179                 }
 180
 181                 public static int DebugFlags = 0;
 182
 183                 [Conditional ("MCS_DEBUG")]
 184                 static public void Debug (string message, params object[] args)
 185                 {
 186                         Debug (4, message, args);
 187                 }
 188
 189                 [Conditional ("MCS_DEBUG")]
 190                 static public void Debug (int category, string message, params object[] args)
 191                 {
 192                         if ((category & DebugFlags) == 0)
 193                                 return;
 194
 195                         StringBuilder sb = new StringBuilder (message);
 196
 197                         if ((args != null) && (args.Length > 0)) {
 198                                 sb.Append (": ");
 199
 200                                 bool first = true;
 201                                 foreach (object arg in args) {
 202                                         if (first)
 203                                                 first = false;
 204                                         else
 205                                                 sb.Append (", ");
 206                                         if (arg == null)
 207                                                 sb.Append ("null");
 208                                         else if (arg is ICollection)
 209                                                 sb.Append (PrintCollection ((ICollection) arg));
 210                                         else
 211                                                 sb.Append (arg);
 212                                 }
 213                         }
 214
 215                         Console.WriteLine (sb.ToString ());
 216                 }
 217
 218                 static public string PrintCollection (ICollection collection)
 219                 {
 220                         StringBuilder sb = new StringBuilder ();
 221
 222                         sb.Append (collection.GetType ());
 223                         sb.Append ("(");
 224
 225                         bool first = true;
 226                         foreach (object o in collection) {
 227                                 if (first)
 228                                         first = false;
 229                                 else
 230                                         sb.Append (", ");
 231                                 sb.Append (o);
 232                         }
 233
 234                         sb.Append (")");
 235                         return sb.ToString ();
 236                 }
 237         }
 238
 239         public class Message {
 240                 public int code;
 241                 public string text;
 242
 243                 public Message (int code, string text)
 244                 {
 245                         this.code = code;
 246                         this.text = text;
 247                 }
 248         }
 249
 250         public class WarningMessage : Message {
 251                 public WarningMessage (int code, string text) : base (code, text)
 252                 {
 253                 }
 254         }
 255
 256         public class ErrorMessage : Message {
 257                 public ErrorMessage (int code, string text) : base (code, text)
 258                 {
 259                 }
 260
 261                 //
 262                 // For compatibility reasons with old code.
 263                 //
 264                 public static void report_error (string error)
 265                 {
 266                         Console.Write ("ERROR: ");
 267                         Console.WriteLine (error);
 268                 }
 269         }
 270
 271         public enum TimerType {
 272                 FindMembers     = 0,
 273                 TcFindMembers   = 1,
 274                 MemberLookup    = 2,
 275                 CachedLookup    = 3,
 276                 CacheInit       = 4,
 277                 MiscTimer       = 5,
 278                 CountTimers     = 6
 279         }
 280
 281         public enum CounterType {
 282                 FindMembers     = 0,
 283                 MemberCache     = 1,
 284                 MiscCounter     = 2,
 285                 CountCounters   = 3
 286         }
 287
 288         public class Timer
 289         {
 290                 static DateTime[] timer_start;
 291                 static TimeSpan[] timers;
 292                 static long[] timer_counters;
 293                 static long[] counters;
 294
 295                 static Timer ()
 296                 {
 297                         timer_start = new DateTime [(int) TimerType.CountTimers];
 298                         timers = new TimeSpan [(int) TimerType.CountTimers];
 299                         timer_counters = new long [(int) TimerType.CountTimers];
 300                         counters = new long [(int) CounterType.CountCounters];
 301
 302                         for (int i = 0; i < (int) TimerType.CountTimers; i++) {
 303                                 timer_start [i] = DateTime.Now;
 304                                 timers [i] = TimeSpan.Zero;
 305                         }
 306                 }
 307
 308                 [Conditional("TIMER")]
 309                 static public void IncrementCounter (CounterType which)
 310                 {
 311                         ++counters [(int) which];
 312                 }
 313
 314                 [Conditional("TIMER")]
 315                 static public void StartTimer (TimerType which)
 316                 {
 317                         timer_start [(int) which] = DateTime.Now;
 318                 }
 319
 320                 [Conditional("TIMER")]
 321                 static public void StopTimer (TimerType which)
 322                 {
 323                         timers [(int) which] += DateTime.Now - timer_start [(int) which];
 324                         ++timer_counters [(int) which];
 325                 }
 326
 327                 [Conditional("TIMER")]
 328                 static public void ShowTimers ()
 329                 {
 330                         ShowTimer (TimerType.FindMembers, "- FindMembers timer");
 331                         ShowTimer (TimerType.TcFindMembers, "- TypeContainer.FindMembers timer");
 332                         ShowTimer (TimerType.MemberLookup, "- MemberLookup timer");
 333                         ShowTimer (TimerType.CachedLookup, "- CachedLookup timer");
 334                         ShowTimer (TimerType.CacheInit, "- Cache init");
 335                         ShowTimer (TimerType.MiscTimer, "- Misc timer");
 336
 337                         ShowCounter (CounterType.FindMembers, "- Find members");
 338                         ShowCounter (CounterType.MemberCache, "- Member cache");
 339                         ShowCounter (CounterType.MiscCounter, "- Misc counter");
 340                 }
 341
 342                 static public void ShowCounter (CounterType which, string msg)
 343                 {
 344                         Console.WriteLine ("{0} {1}", counters [(int) which], msg);
 345                 }
 346
 347                 static public void ShowTimer (TimerType which, string msg)
 348                 {
 349                         Console.WriteLine (
 350                                 "[{0:00}:{1:000}] {2} (used {3} times)",
 351                                 (int) timers [(int) which].TotalSeconds,
 352                                 timers [(int) which].Milliseconds, msg,
 353                                 timer_counters [(int) which]);
 354                 }
 355         }
 356
 357         public class InternalErrorException : Exception {
 358                 public InternalErrorException ()
 359                         : base ("Internal error")
 360                 {
 361                 }
 362
 363                 public InternalErrorException (string message)
 364                         : base (message)
 365                 {
 366                 }
 367         }
 368 }