2 // report.cs: report errors and warnings.
4 // Author: Miguel de Icaza (miguel@ximian.com)
6 // (C) 2001 Ximian, Inc. (http://www.ximian.com)
10 // FIXME: currently our class library does not support custom number format strings
14 using System.Collections;
15 using System.Collections.Specialized;
16 using System.Diagnostics;
17 using System.Reflection;
19 namespace Mono.CSharp {
22 /// This class is used to report errors and warnings t te user.
26 /// Errors encountered so far
28 static public int Errors;
31 /// Warnings encountered so far
33 static public int Warnings;
36 /// Whether errors should be throw an exception
38 static public bool Fatal;
41 /// Whether warnings should be considered errors
43 static public bool WarningsAreErrors;
46 /// Whether to dump a stack trace on errors.
48 static public bool Stacktrace;
51 // If the 'expected' error code is reported then the
52 // compilation succeeds.
54 // Used for the test suite to excercise the error codes
56 static int expected_error = 0;
59 // Keeps track of the warnings that we are ignoring
61 static Hashtable warning_ignore_table;
64 /// List of symbols related to reported error/warning. You have to fill it before error/warning is reported.
66 static StringCollection related_symbols = new StringCollection ();
69 public WarningData (int level, string text) {
74 public bool IsEnabled ()
76 return RootContext.WarningLevel >= Level;
79 public string Format (params object[] args)
81 return String.Format (Message, args);
84 readonly string Message;
88 static string GetErrorMsg (int error_no)
91 case 0122: return "'{0}' is inaccessible due to its protection level";
92 case 0160: return "A previous catch clause already catches all exceptions of this or a super type '{0}'";
93 case 0243: return "Conditional not valid on '{0}' because it is an override method";
94 case 0577: return "Conditional not valid on '{0}' because it is a destructor, operator, or explicit interface implementation";
95 case 0578: return "Conditional not valid on '{0}' because its return type is not void";
96 case 0582: return "Conditional not valid on interface members";
97 case 0592: return "Attribute '{0}' is not valid on this declaration type. It is valid on {1} declarations only.";
98 case 0601: return "The DllImport attribute must be specified on a method marked `static' and `extern'";
99 case 0610: return "Field or property cannot be of type '{0}'";
100 case 0619: return "'{0}' is obsolete: '{1}'";
101 case 0626: return "Method, operator, or accessor '{0}' is marked external and has no attributes on it. Consider adding a DllImport attribute to specify the external implementation";
102 case 0629: return "Conditional member '{0}' cannot implement interface member";
103 case 0657: return "'{0}' is not a valid attribute location for this declaration. Valid attribute locations for this declaration are '{1}'";
104 case 1618: return "Cannot create delegate with '{0}' because it has a Conditional attribute";
105 case 1667: return "'{0}' is not valid on property or event accessors. It is valid on '{1}' declarations only";
106 case 1669: return "__arglist is not valid in this context";
107 case 3000: return "Methods with variable arguments are not CLS-compliant";
108 case 3001: return "Argument type '{0}' is not CLS-compliant";
109 case 3002: return "Return type of '{0}' is not CLS-compliant";
110 case 3003: return "Type of '{0}' is not CLS-compliant";
111 case 3005: return "Identifier '{0}' differing only in case is not CLS-compliant";
112 case 3006: return "Overloaded method '{0}' differing only in ref or out, or in array rank, is not CLS-compliant";
113 case 3008: return "Identifier '{0}' is not CLS-compliant";
114 case 3009: return "'{0}': base type '{1}' is not CLS-compliant";
115 case 3010: return "'{0}': CLS-compliant interfaces must have only CLS-compliant members";
116 case 3011: return "'{0}': only CLS-compliant members can be abstract";
117 case 3013: return "Added modules must be marked with the CLSCompliant attribute to match the assembly";
118 case 3014: return "'{0}' cannot be marked as CLS-compliant because the assembly does not have a CLSCompliant attribute";
119 case 3015: return "'{0}' has no accessible constructors which use only CLS-compliant types";
120 case 3016: return "Arrays as attribute arguments are not CLS-compliant";
122 throw new InternalErrorException (String.Format ("Missing error '{0}' text", error_no));
125 static WarningData GetWarningMsg (int warn_no)
128 case -24: return new WarningData (1, "The Microsoft Runtime cannot set this marshal info. Please use the Mono runtime instead.");
129 case -28: return new WarningData (1, "The Microsoft .NET Runtime 1.x does not permit setting custom attributes on the return type");
130 case 0612: return new WarningData (1, "'{0}' is obsolete");
131 case 0618: return new WarningData (2, "'{0}' is obsolete: '{1}'");
132 case 0672: return new WarningData (1, "Member '{0}' overrides obsolete member. Add the Obsolete attribute to '{0}'");
133 case 3012: return new WarningData (1, "You must specify the CLSCompliant attribute on the assembly, not the module, to enable CLS compliance checking");
134 case 3019: return new WarningData (2, "CLS compliance checking will not be performed on '{0}' because it is private or internal");
137 throw new InternalErrorException (String.Format ("Wrong warning number '{0}'", warn_no));
140 static void Check (int code)
142 if (code == expected_error){
144 throw new Exception ();
146 Environment.Exit (0);
150 public static string FriendlyStackTrace (Exception e)
152 return FriendlyStackTrace (new StackTrace (e, true));
155 static string FriendlyStackTrace (StackTrace t)
157 StringBuilder sb = new StringBuilder ();
159 bool foundUserCode = false;
161 for (int i = 0; i < t.FrameCount; i++) {
162 StackFrame f = t.GetFrame (i);
163 MethodBase mb = f.GetMethod ();
165 if (!foundUserCode && mb.ReflectedType == typeof (Report))
168 foundUserCode = true;
172 if (f.GetFileLineNumber () > 0)
173 sb.AppendFormat ("(at {0}:{1}) ", f.GetFileName (), f.GetFileLineNumber ());
175 sb.AppendFormat ("{0}.{1} (", mb.ReflectedType.Name, mb.Name);
178 foreach (ParameterInfo pi in mb.GetParameters ()) {
183 sb.Append (TypeManager.CSharpName (pi.ParameterType));
188 return sb.ToString ();
191 [Obsolete ("Use SymbolRelatedToPreviousError for better error description")]
192 static public void LocationOfPreviousError (Location loc)
194 Console.WriteLine (String.Format ("{0}({1}) (Location of symbol related to previous error)", loc.Name, loc.Row));
198 /// In most error cases is very useful to have information about symbol that caused the error.
199 /// Call this method before you call Report.Error when it makes sense.
201 static public void SymbolRelatedToPreviousError (Location loc, string symbol)
203 SymbolRelatedToPreviousError (String.Format ("{0}({1})", loc.Name, loc.Row), symbol);
206 static public void SymbolRelatedToPreviousError (MemberInfo mi)
208 DeclSpace temp_ds = TypeManager.LookupDeclSpace (mi.DeclaringType);
209 if (temp_ds == null) {
210 SymbolRelatedToPreviousError (mi.DeclaringType.Assembly.Location, TypeManager.GetFullNameSignature (mi));
212 string name = String.Concat (temp_ds.Name, ".", mi.Name);
213 MemberCore mc = temp_ds.GetDefinition (name) as MemberCore;
214 SymbolRelatedToPreviousError (mc.Location, mc.GetSignatureForError ());
218 static public void SymbolRelatedToPreviousError (Type type)
220 SymbolRelatedToPreviousError (type.Assembly.Location, TypeManager.CSharpName (type));
223 static void SymbolRelatedToPreviousError (string loc, string symbol)
225 related_symbols.Add (String.Format ("{0}: ('{1}' name of symbol related to previous error)", loc, symbol));
228 static public void RealError (string msg)
231 Console.WriteLine (msg);
233 foreach (string s in related_symbols)
234 Console.WriteLine (s);
235 related_symbols.Clear ();
238 Console.WriteLine (FriendlyStackTrace (new StackTrace (true)));
241 throw new Exception (msg);
246 /// Method reports warning message. Only one reason why exist Warning and Report methods is beter code readability.
248 static public void Warning_T (int code, Location loc, params object[] args)
250 WarningData warning = GetWarningMsg (code);
251 if (warning.IsEnabled ())
252 Warning (code, loc, warning.Format (args));
254 related_symbols.Clear ();
258 /// Reports error message.
260 static public void Error_T (int code, Location loc, params object[] args)
262 Error_T (code, String.Format ("{0}({1})", loc.Name, loc.Row), args);
265 static public void Error_T (int code, string location, params object[] args)
267 string errorText = String.Format (GetErrorMsg (code), args);
268 PrintError (code, location, errorText);
271 static void PrintError (int code, string l, string text)
276 string msg = String.Format ("{0} error CS{1:0000}: {2}", l, code, text);
281 static public void Error (int code, Location l, string text)
286 string msg = String.Format (
287 "{0}({1}) error CS{2:0000}: {3}", l.Name, l.Row, code, text);
288 // "{0}({1}) error CS{2}: {3}", l.Name, l.Row, code, text);
294 static public void Warning (int code, Location l, string text)
299 if (warning_ignore_table != null){
300 if (warning_ignore_table.Contains (code)) {
301 related_symbols.Clear ();
306 if (WarningsAreErrors)
307 Error (code, l, text);
311 if (Location.IsNull (l))
314 row = l.Row.ToString ();
316 Console.WriteLine (String.Format (
317 "{0}({1}) warning CS{2:0000}: {3}",
318 // "{0}({1}) warning CS{2}: {3}",
319 l.Name, row, code, text));
322 foreach (string s in related_symbols)
323 Console.WriteLine (s);
324 related_symbols.Clear ();
329 Console.WriteLine (new StackTrace ().ToString ());
333 static public void Warning (int code, string text)
335 Warning (code, Location.Null, text);
338 static public void Warning (int code, int level, string text)
340 if (RootContext.WarningLevel >= level)
341 Warning (code, Location.Null, text);
344 static public void Warning (int code, int level, Location l, string text)
346 if (RootContext.WarningLevel >= level)
347 Warning (code, l, text);
350 static public void Error (int code, string text)
355 string msg = String.Format ("error CS{0:0000}: {1}", code, text);
356 // string msg = String.Format ("error CS{0}: {1}", code, text);
362 static public void Error (int code, Location loc, string format, params object[] args)
364 Error (code, loc, String.Format (format, args));
367 static public void Warning (int code, Location loc, string format, params object[] args)
369 Warning (code, loc, String.Format (format, args));
372 static public void Warning (int code, string format, params object[] args)
374 Warning (code, String.Format (format, args));
377 static public void Message (Message m)
379 if (m is ErrorMessage)
380 Error (m.code, m.text);
382 Warning (m.code, m.text);
385 static public void SetIgnoreWarning (int code)
387 if (warning_ignore_table == null)
388 warning_ignore_table = new Hashtable ();
390 warning_ignore_table [code] = true;
393 static public int ExpectedError {
395 expected_error = value;
398 return expected_error;
402 public static int DebugFlags = 0;
404 [Conditional ("MCS_DEBUG")]
405 static public void Debug (string message, params object[] args)
407 Debug (4, message, args);
410 [Conditional ("MCS_DEBUG")]
411 static public void Debug (int category, string message, params object[] args)
413 if ((category & DebugFlags) == 0)
416 StringBuilder sb = new StringBuilder (message);
418 if ((args != null) && (args.Length > 0)) {
422 foreach (object arg in args) {
429 else if (arg is ICollection)
430 sb.Append (PrintCollection ((ICollection) arg));
436 Console.WriteLine (sb.ToString ());
439 static public string PrintCollection (ICollection collection)
441 StringBuilder sb = new StringBuilder ();
443 sb.Append (collection.GetType ());
447 foreach (object o in collection) {
456 return sb.ToString ();
460 public class Message {
464 public Message (int code, string text)
471 public class WarningMessage : Message {
472 public WarningMessage (int code, string text) : base (code, text)
477 public class ErrorMessage : Message {
478 public ErrorMessage (int code, string text) : base (code, text)
483 // For compatibility reasons with old code.
485 public static void report_error (string error)
487 Console.Write ("ERROR: ");
488 Console.WriteLine (error);
492 public enum TimerType {
502 public enum CounterType {
511 static DateTime[] timer_start;
512 static TimeSpan[] timers;
513 static long[] timer_counters;
514 static long[] counters;
518 timer_start = new DateTime [(int) TimerType.CountTimers];
519 timers = new TimeSpan [(int) TimerType.CountTimers];
520 timer_counters = new long [(int) TimerType.CountTimers];
521 counters = new long [(int) CounterType.CountCounters];
523 for (int i = 0; i < (int) TimerType.CountTimers; i++) {
524 timer_start [i] = DateTime.Now;
525 timers [i] = TimeSpan.Zero;
529 [Conditional("TIMER")]
530 static public void IncrementCounter (CounterType which)
532 ++counters [(int) which];
535 [Conditional("TIMER")]
536 static public void StartTimer (TimerType which)
538 timer_start [(int) which] = DateTime.Now;
541 [Conditional("TIMER")]
542 static public void StopTimer (TimerType which)
544 timers [(int) which] += DateTime.Now - timer_start [(int) which];
545 ++timer_counters [(int) which];
548 [Conditional("TIMER")]
549 static public void ShowTimers ()
551 ShowTimer (TimerType.FindMembers, "- FindMembers timer");
552 ShowTimer (TimerType.TcFindMembers, "- TypeContainer.FindMembers timer");
553 ShowTimer (TimerType.MemberLookup, "- MemberLookup timer");
554 ShowTimer (TimerType.CachedLookup, "- CachedLookup timer");
555 ShowTimer (TimerType.CacheInit, "- Cache init");
556 ShowTimer (TimerType.MiscTimer, "- Misc timer");
558 ShowCounter (CounterType.FindMembers, "- Find members");
559 ShowCounter (CounterType.MemberCache, "- Member cache");
560 ShowCounter (CounterType.MiscCounter, "- Misc counter");
563 static public void ShowCounter (CounterType which, string msg)
565 Console.WriteLine ("{0} {1}", counters [(int) which], msg);
568 static public void ShowTimer (TimerType which, string msg)
571 "[{0:00}:{1:000}] {2} (used {3} times)",
572 (int) timers [(int) which].TotalSeconds,
573 timers [(int) which].Milliseconds, msg,
574 timer_counters [(int) which]);
578 public class InternalErrorException : Exception {
579 public InternalErrorException ()
580 : base ("Internal error")
584 public InternalErrorException (string message)