Diagnostic.cpp revision 20c6b3b85e186cd52d5d99489132d71d498159eb 
1//===--- Diagnostic.cpp - C Language Family Diagnostic Handling -----------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10//  This file implements the Diagnostic-related interfaces.
11//
12//===----------------------------------------------------------------------===//
13
14#include "clang/Basic/Diagnostic.h"
15#include "clang/Basic/IdentifierTable.h"
16#include "clang/Basic/SourceLocation.h"
17#include "llvm/ADT/SmallVector.h"
18#include "llvm/ADT/StringExtras.h"
19#include <vector>
20#include <map>
21#include <cstring>
22using namespace clang;
23
24//===----------------------------------------------------------------------===//
25// Builtin Diagnostic information
26//===----------------------------------------------------------------------===//
27
28/// Flag values for diagnostics.
29enum {
30  // Diagnostic classes.
31  NOTE       = 0x01,
32  WARNING    = 0x02,
33  EXTENSION  = 0x03,
34  EXTWARN    = 0x04,
35  ERROR      = 0x05,
36  class_mask = 0x07
37};
38
39namespace clang {
40  namespace diag {
41    enum _kind{
42#define DIAG(ENUM,FLAGS,DESC) ENUM,
43#define LEXSTART
44#define PARSESTART
45#define ASTSTART
46#define SEMASTART
47#define ANALYSISSTART
48#include "clang/Basic/DiagnosticKinds.def"
49      NUM_BUILTIN_DIAGNOSTICS = DIAG_UPPER_LIMIT
50    };
51  }
52}
53
54/// DiagnosticFlags - A set of flags, or'd together, that describe the
55/// diagnostic.
56#define DIAG(ENUM,FLAGS,DESC) FLAGS,
57static unsigned char DiagnosticFlagsCommon[] = {
58#include "clang/Basic/DiagnosticCommonKinds.def"
59  0
60};
61static unsigned char DiagnosticFlagsLex[] = {
62#include "clang/Basic/DiagnosticLexKinds.def"
63  0
64};
65static unsigned char DiagnosticFlagsParse[] = {
66#include "clang/Basic/DiagnosticParseKinds.def"
67  0
68};
69static unsigned char DiagnosticFlagsAST[] = {
70#include "clang/Basic/DiagnosticASTKinds.def"
71  0
72};
73static unsigned char DiagnosticFlagsSema[] = {
74#include "clang/Basic/DiagnosticSemaKinds.def"
75  0
76};
77static unsigned char DiagnosticFlagsAnalysis[] = {
78#include "clang/Basic/DiagnosticAnalysisKinds.def"
79  0
80};
81#undef DIAG
82
83/// getDiagClass - Return the class field of the diagnostic.
84///
85static unsigned getBuiltinDiagClass(unsigned DiagID) {
86  assert(DiagID < diag::NUM_BUILTIN_DIAGNOSTICS &&
87         "Diagnostic ID out of range!");
88  unsigned res;
89  if (DiagID < DIAG_START_LEX)
90    res = DiagnosticFlagsCommon[DiagID];
91  else if (DiagID < DIAG_START_PARSE)
92    res = DiagnosticFlagsLex[DiagID - DIAG_START_LEX - 1];
93  else if (DiagID < DIAG_START_AST)
94    res = DiagnosticFlagsParse[DiagID - DIAG_START_PARSE - 1];
95  else if (DiagID < DIAG_START_SEMA)
96    res = DiagnosticFlagsAST[DiagID - DIAG_START_AST - 1];
97  else if (DiagID < DIAG_START_ANALYSIS)
98    res = DiagnosticFlagsSema[DiagID - DIAG_START_SEMA - 1];
99  else
100    res = DiagnosticFlagsAnalysis[DiagID - DIAG_START_ANALYSIS - 1];
101  return res & class_mask;
102}
103
104/// DiagnosticText - An english message to print for the diagnostic.  These
105/// should be localized.
106#define DIAG(ENUM,FLAGS,DESC) DESC,
107static const char * const DiagnosticTextCommon[] = {
108#include "clang/Basic/DiagnosticCommonKinds.def"
109  0
110};
111static const char * const DiagnosticTextLex[] = {
112#include "clang/Basic/DiagnosticLexKinds.def"
113  0
114};
115static const char * const DiagnosticTextParse[] = {
116#include "clang/Basic/DiagnosticParseKinds.def"
117  0
118};
119static const char * const DiagnosticTextAST[] = {
120#include "clang/Basic/DiagnosticASTKinds.def"
121  0
122};
123static const char * const DiagnosticTextSema[] = {
124#include "clang/Basic/DiagnosticSemaKinds.def"
125  0
126};
127static const char * const DiagnosticTextAnalysis[] = {
128#include "clang/Basic/DiagnosticAnalysisKinds.def"
129  0
130};
131#undef DIAG
132
133//===----------------------------------------------------------------------===//
134// Custom Diagnostic information
135//===----------------------------------------------------------------------===//
136
137namespace clang {
138  namespace diag {
139    class CustomDiagInfo {
140      typedef std::pair<Diagnostic::Level, std::string> DiagDesc;
141      std::vector<DiagDesc> DiagInfo;
142      std::map<DiagDesc, unsigned> DiagIDs;
143    public:
144
145      /// getDescription - Return the description of the specified custom
146      /// diagnostic.
147      const char *getDescription(unsigned DiagID) const {
148        assert(this && DiagID-diag::NUM_BUILTIN_DIAGNOSTICS < DiagInfo.size() &&
149               "Invalid diagnosic ID");
150        return DiagInfo[DiagID-diag::NUM_BUILTIN_DIAGNOSTICS].second.c_str();
151      }
152
153      /// getLevel - Return the level of the specified custom diagnostic.
154      Diagnostic::Level getLevel(unsigned DiagID) const {
155        assert(this && DiagID-diag::NUM_BUILTIN_DIAGNOSTICS < DiagInfo.size() &&
156               "Invalid diagnosic ID");
157        return DiagInfo[DiagID-diag::NUM_BUILTIN_DIAGNOSTICS].first;
158      }
159
160      unsigned getOrCreateDiagID(Diagnostic::Level L, const char *Message,
161                                 Diagnostic &Diags) {
162        DiagDesc D(L, Message);
163        // Check to see if it already exists.
164        std::map<DiagDesc, unsigned>::iterator I = DiagIDs.lower_bound(D);
165        if (I != DiagIDs.end() && I->first == D)
166          return I->second;
167
168        // If not, assign a new ID.
169        unsigned ID = DiagInfo.size()+diag::NUM_BUILTIN_DIAGNOSTICS;
170        DiagIDs.insert(std::make_pair(D, ID));
171        DiagInfo.push_back(D);
172
173        // If this is a warning, and all warnings are supposed to map to errors,
174        // insert the mapping now.
175        if (L == Diagnostic::Warning && Diags.getWarningsAsErrors())
176          Diags.setDiagnosticMapping((diag::kind)ID, diag::MAP_ERROR);
177        return ID;
178      }
179    };
180
181  } // end diag namespace
182} // end clang namespace
183
184
185//===----------------------------------------------------------------------===//
186// Common Diagnostic implementation
187//===----------------------------------------------------------------------===//
188
189static void DummyArgToStringFn(Diagnostic::ArgumentKind AK, intptr_t QT,
190                               const char *Modifier, unsigned ML,
191                               const char *Argument, unsigned ArgLen,
192                               llvm::SmallVectorImpl<char> &Output) {
193  const char *Str = "<can't format argument>";
194  Output.append(Str, Str+strlen(Str));
195}
196
197
198Diagnostic::Diagnostic(DiagnosticClient *client) : Client(client) {
199  IgnoreAllWarnings = false;
200  WarningsAsErrors = false;
201  WarnOnExtensions = false;
202  ErrorOnExtensions = false;
203  SuppressSystemWarnings = false;
204  // Clear all mappings, setting them to MAP_DEFAULT.
205  memset(DiagMappings, 0, sizeof(DiagMappings));
206
207  ErrorOccurred = false;
208  NumDiagnostics = 0;
209  NumErrors = 0;
210  CustomDiagInfo = 0;
211  CurDiagID = ~0U;
212
213  ArgToStringFn = DummyArgToStringFn;
214}
215
216Diagnostic::~Diagnostic() {
217  delete CustomDiagInfo;
218}
219
220/// getCustomDiagID - Return an ID for a diagnostic with the specified message
221/// and level.  If this is the first request for this diagnosic, it is
222/// registered and created, otherwise the existing ID is returned.
223unsigned Diagnostic::getCustomDiagID(Level L, const char *Message) {
224  if (CustomDiagInfo == 0)
225    CustomDiagInfo = new diag::CustomDiagInfo();
226  return CustomDiagInfo->getOrCreateDiagID(L, Message, *this);
227}
228
229
230/// isBuiltinNoteWarningOrExtension - Return true if the unmapped diagnostic
231/// level of the specified diagnostic ID is a Note, Warning, or Extension.
232/// Note that this only works on builtin diagnostics, not custom ones.
233bool Diagnostic::isBuiltinNoteWarningOrExtension(unsigned DiagID) {
234  return DiagID < diag::NUM_BUILTIN_DIAGNOSTICS &&
235         getBuiltinDiagClass(DiagID) < ERROR;
236}
237
238
239/// getDescription - Given a diagnostic ID, return a description of the
240/// issue.
241const char *Diagnostic::getDescription(unsigned DiagID) const {
242  if (DiagID < diag::NUM_BUILTIN_DIAGNOSTICS)
243  {
244    if (DiagID < DIAG_START_LEX)
245      return DiagnosticTextCommon[DiagID];
246    else if (DiagID < DIAG_START_PARSE)
247      return DiagnosticTextLex[DiagID - DIAG_START_LEX - 1];
248    else if (DiagID < DIAG_START_AST)
249      return DiagnosticTextParse[DiagID - DIAG_START_PARSE - 1];
250    else if (DiagID < DIAG_START_SEMA)
251      return DiagnosticTextAST[DiagID - DIAG_START_AST - 1];
252    else if (DiagID < DIAG_START_ANALYSIS)
253      return DiagnosticTextSema[DiagID - DIAG_START_SEMA - 1];
254    else if (DiagID < DIAG_UPPER_LIMIT)
255      return DiagnosticTextAnalysis[DiagID - DIAG_START_ANALYSIS - 1];
256  }
257
258  return CustomDiagInfo->getDescription(DiagID);
259}
260
261/// getDiagnosticLevel - Based on the way the client configured the Diagnostic
262/// object, classify the specified diagnostic ID into a Level, consumable by
263/// the DiagnosticClient.
264Diagnostic::Level Diagnostic::getDiagnosticLevel(unsigned DiagID) const {
265  // Handle custom diagnostics, which cannot be mapped.
266  if (DiagID >= diag::NUM_BUILTIN_DIAGNOSTICS)
267    return CustomDiagInfo->getLevel(DiagID);
268
269  unsigned DiagClass = getBuiltinDiagClass(DiagID);
270
271  // Specific non-error diagnostics may be mapped to various levels from ignored
272  // to error.
273  if (DiagClass < ERROR) {
274    switch (getDiagnosticMapping((diag::kind)DiagID)) {
275    case diag::MAP_DEFAULT: break;
276    case diag::MAP_IGNORE:  return Diagnostic::Ignored;
277    case diag::MAP_WARNING: DiagClass = WARNING; break;
278    case diag::MAP_ERROR:   DiagClass = ERROR; break;
279    }
280  }
281
282  // Map diagnostic classes based on command line argument settings.
283  if (DiagClass == EXTENSION) {
284    if (ErrorOnExtensions)
285      DiagClass = ERROR;
286    else if (WarnOnExtensions)
287      DiagClass = WARNING;
288    else
289      return Ignored;
290  } else if (DiagClass == EXTWARN) {
291    DiagClass = ErrorOnExtensions ? ERROR : WARNING;
292  }
293
294  // If warnings are globally mapped to ignore or error, do it.
295  if (DiagClass == WARNING) {
296    if (IgnoreAllWarnings)
297      return Diagnostic::Ignored;
298    if (WarningsAsErrors)
299      DiagClass = ERROR;
300  }
301
302  switch (DiagClass) {
303  default: assert(0 && "Unknown diagnostic class!");
304  case NOTE:        return Diagnostic::Note;
305  case WARNING:     return Diagnostic::Warning;
306  case ERROR:       return Diagnostic::Error;
307  }
308}
309
310/// ProcessDiag - This is the method used to report a diagnostic that is
311/// finally fully formed.
312void Diagnostic::ProcessDiag() {
313  DiagnosticInfo Info(this);
314
315  // Figure out the diagnostic level of this message.
316  Diagnostic::Level DiagLevel = getDiagnosticLevel(Info.getID());
317
318  // If the client doesn't care about this message, don't issue it.
319  if (DiagLevel == Diagnostic::Ignored)
320    return;
321
322  // If this is not an error and we are in a system header, ignore it.  We
323  // have to check on the original Diag ID here, because we also want to
324  // ignore extensions and warnings in -Werror and -pedantic-errors modes,
325  // which *map* warnings/extensions to errors.
326  if (SuppressSystemWarnings &&
327      Info.getID() < diag::NUM_BUILTIN_DIAGNOSTICS &&
328      getBuiltinDiagClass(Info.getID()) != ERROR &&
329      Info.getLocation().isValid() &&
330      Info.getLocation().getSpellingLoc().isInSystemHeader())
331    return;
332
333  if (DiagLevel >= Diagnostic::Error) {
334    ErrorOccurred = true;
335
336    ++NumErrors;
337  }
338
339  // Finally, report it.
340  Client->HandleDiagnostic(DiagLevel, Info);
341  if (Client->IncludeInDiagnosticCounts()) ++NumDiagnostics;
342}
343
344
345DiagnosticClient::~DiagnosticClient() {}
346
347
348/// ModifierIs - Return true if the specified modifier matches specified string.
349template <std::size_t StrLen>
350static bool ModifierIs(const char *Modifier, unsigned ModifierLen,
351                       const char (&Str)[StrLen]) {
352  return StrLen-1 == ModifierLen && !memcmp(Modifier, Str, StrLen-1);
353}
354
355/// HandleSelectModifier - Handle the integer 'select' modifier.  This is used
356/// like this:  %select{foo|bar|baz}2.  This means that the integer argument
357/// "%2" has a value from 0-2.  If the value is 0, the diagnostic prints 'foo'.
358/// If the value is 1, it prints 'bar'.  If it has the value 2, it prints 'baz'.
359/// This is very useful for certain classes of variant diagnostics.
360static void HandleSelectModifier(unsigned ValNo,
361                                 const char *Argument, unsigned ArgumentLen,
362                                 llvm::SmallVectorImpl<char> &OutStr) {
363  const char *ArgumentEnd = Argument+ArgumentLen;
364
365  // Skip over 'ValNo' |'s.
366  while (ValNo) {
367    const char *NextVal = std::find(Argument, ArgumentEnd, '|');
368    assert(NextVal != ArgumentEnd && "Value for integer select modifier was"
369           " larger than the number of options in the diagnostic string!");
370    Argument = NextVal+1;  // Skip this string.
371    --ValNo;
372  }
373
374  // Get the end of the value.  This is either the } or the |.
375  const char *EndPtr = std::find(Argument, ArgumentEnd, '|');
376  // Add the value to the output string.
377  OutStr.append(Argument, EndPtr);
378}
379
380/// HandleIntegerSModifier - Handle the integer 's' modifier.  This adds the
381/// letter 's' to the string if the value is not 1.  This is used in cases like
382/// this:  "you idiot, you have %4 parameter%s4!".
383static void HandleIntegerSModifier(unsigned ValNo,
384                                   llvm::SmallVectorImpl<char> &OutStr) {
385  if (ValNo != 1)
386    OutStr.push_back('s');
387}
388
389
390/// PluralNumber - Parse an unsigned integer and advance Start.
391static unsigned PluralNumber(const char *&Start, const char *End)
392{
393  // Programming 101: Parse a decimal number :-)
394  unsigned Val = 0;
395  while (Start != End && *Start >= '0' && *Start <= '9') {
396    Val *= 10;
397    Val += *Start - '0';
398    ++Start;
399  }
400  return Val;
401}
402
403/// TestPluralRange - Test if Val is in the parsed range. Modifies Start.
404static bool TestPluralRange(unsigned Val, const char *&Start, const char *End)
405{
406  if (*Start != '[') {
407    unsigned Ref = PluralNumber(Start, End);
408    return Ref == Val;
409  }
410
411  ++Start;
412  unsigned Low = PluralNumber(Start, End);
413  assert(*Start == ',' && "Bad plural expression syntax: expected ,");
414  ++Start;
415  unsigned High = PluralNumber(Start, End);
416  assert(*Start == ']' && "Bad plural expression syntax: expected )");
417  ++Start;
418  return Low <= Val && Val <= High;
419}
420
421/// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier.
422static bool EvalPluralExpr(unsigned ValNo, const char *Start, const char *End)
423{
424  // Empty condition?
425  if (*Start == ':')
426    return true;
427
428  while (1) {
429    char C = *Start;
430    if (C == '%') {
431      // Modulo expression
432      ++Start;
433      unsigned Arg = PluralNumber(Start, End);
434      assert(*Start == '=' && "Bad plural expression syntax: expected =");
435      ++Start;
436      unsigned ValMod = ValNo % Arg;
437      if (TestPluralRange(ValMod, Start, End))
438        return true;
439    } else {
440      assert((C == '[' || (C >= '0' && C <= '9')) &&
441             "Bad plural expression syntax: unexpected character");
442      // Range expression
443      if (TestPluralRange(ValNo, Start, End))
444        return true;
445    }
446
447    // Scan for next or-expr part.
448    Start = std::find(Start, End, ',');
449    if(Start == End)
450      break;
451    ++Start;
452  }
453  return false;
454}
455
456/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used
457/// for complex plural forms, or in languages where all plurals are complex.
458/// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are
459/// conditions that are tested in order, the form corresponding to the first
460/// that applies being emitted. The empty condition is always true, making the
461/// last form a default case.
462/// Conditions are simple boolean expressions, where n is the number argument.
463/// Here are the rules.
464/// condition  := expression | empty
465/// empty      :=                             -> always true
466/// expression := numeric [',' expression]    -> logical or
467/// numeric    := range                       -> true if n in range
468///             | '%' number '=' range        -> true if n % number in range
469/// range      := number
470///             | '[' number ',' number ']'   -> ranges are inclusive both ends
471///
472/// Here are some examples from the GNU gettext manual written in this form:
473/// English:
474/// {1:form0|:form1}
475/// Latvian:
476/// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0}
477/// Gaeilge:
478/// {1:form0|2:form1|:form2}
479/// Romanian:
480/// {1:form0|0,%100=[1,19]:form1|:form2}
481/// Lithuanian:
482/// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1}
483/// Russian (requires repeated form):
484/// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2}
485/// Slovak
486/// {1:form0|[2,4]:form1|:form2}
487/// Polish (requires repeated form):
488/// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2}
489static void HandlePluralModifier(unsigned ValNo,
490                                 const char *Argument, unsigned ArgumentLen,
491                                 llvm::SmallVectorImpl<char> &OutStr)
492{
493  const char *ArgumentEnd = Argument + ArgumentLen;
494  while (1) {
495    assert(Argument < ArgumentEnd && "Plural expression didn't match.");
496    const char *ExprEnd = Argument;
497    while (*ExprEnd != ':') {
498      assert(ExprEnd != ArgumentEnd && "Plural missing expression end");
499      ++ExprEnd;
500    }
501    if (EvalPluralExpr(ValNo, Argument, ExprEnd)) {
502      Argument = ExprEnd + 1;
503      ExprEnd = std::find(Argument, ArgumentEnd, '|');
504      OutStr.append(Argument, ExprEnd);
505      return;
506    }
507    Argument = std::find(Argument, ArgumentEnd - 1, '|') + 1;
508  }
509}
510
511
512/// FormatDiagnostic - Format this diagnostic into a string, substituting the
513/// formal arguments into the %0 slots.  The result is appended onto the Str
514/// array.
515void DiagnosticInfo::
516FormatDiagnostic(llvm::SmallVectorImpl<char> &OutStr) const {
517  const char *DiagStr = getDiags()->getDescription(getID());
518  const char *DiagEnd = DiagStr+strlen(DiagStr);
519
520  while (DiagStr != DiagEnd) {
521    if (DiagStr[0] != '%') {
522      // Append non-%0 substrings to Str if we have one.
523      const char *StrEnd = std::find(DiagStr, DiagEnd, '%');
524      OutStr.append(DiagStr, StrEnd);
525      DiagStr = StrEnd;
526      continue;
527    } else if (DiagStr[1] == '%') {
528      OutStr.push_back('%');  // %% -> %.
529      DiagStr += 2;
530      continue;
531    }
532
533    // Skip the %.
534    ++DiagStr;
535
536    // This must be a placeholder for a diagnostic argument.  The format for a
537    // placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0".
538    // The digit is a number from 0-9 indicating which argument this comes from.
539    // The modifier is a string of digits from the set [-a-z]+, arguments is a
540    // brace enclosed string.
541    const char *Modifier = 0, *Argument = 0;
542    unsigned ModifierLen = 0, ArgumentLen = 0;
543
544    // Check to see if we have a modifier.  If so eat it.
545    if (!isdigit(DiagStr[0])) {
546      Modifier = DiagStr;
547      while (DiagStr[0] == '-' ||
548             (DiagStr[0] >= 'a' && DiagStr[0] <= 'z'))
549        ++DiagStr;
550      ModifierLen = DiagStr-Modifier;
551
552      // If we have an argument, get it next.
553      if (DiagStr[0] == '{') {
554        ++DiagStr; // Skip {.
555        Argument = DiagStr;
556
557        for (; DiagStr[0] != '}'; ++DiagStr)
558          assert(DiagStr[0] && "Mismatched {}'s in diagnostic string!");
559        ArgumentLen = DiagStr-Argument;
560        ++DiagStr;  // Skip }.
561      }
562    }
563
564    assert(isdigit(*DiagStr) && "Invalid format for argument in diagnostic");
565    unsigned ArgNo = *DiagStr++ - '0';
566
567    switch (getArgKind(ArgNo)) {
568    // ---- STRINGS ----
569    case Diagnostic::ak_std_string: {
570      const std::string &S = getArgStdStr(ArgNo);
571      assert(ModifierLen == 0 && "No modifiers for strings yet");
572      OutStr.append(S.begin(), S.end());
573      break;
574    }
575    case Diagnostic::ak_c_string: {
576      const char *S = getArgCStr(ArgNo);
577      assert(ModifierLen == 0 && "No modifiers for strings yet");
578      OutStr.append(S, S + strlen(S));
579      break;
580    }
581    // ---- INTEGERS ----
582    case Diagnostic::ak_sint: {
583      int Val = getArgSInt(ArgNo);
584
585      if (ModifierIs(Modifier, ModifierLen, "select")) {
586        HandleSelectModifier((unsigned)Val, Argument, ArgumentLen, OutStr);
587      } else if (ModifierIs(Modifier, ModifierLen, "s")) {
588        HandleIntegerSModifier(Val, OutStr);
589      } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
590        HandlePluralModifier((unsigned)Val, Argument, ArgumentLen, OutStr);
591      } else {
592        assert(ModifierLen == 0 && "Unknown integer modifier");
593        // FIXME: Optimize
594        std::string S = llvm::itostr(Val);
595        OutStr.append(S.begin(), S.end());
596      }
597      break;
598    }
599    case Diagnostic::ak_uint: {
600      unsigned Val = getArgUInt(ArgNo);
601
602      if (ModifierIs(Modifier, ModifierLen, "select")) {
603        HandleSelectModifier(Val, Argument, ArgumentLen, OutStr);
604      } else if (ModifierIs(Modifier, ModifierLen, "s")) {
605        HandleIntegerSModifier(Val, OutStr);
606      } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
607        HandlePluralModifier((unsigned)Val, Argument, ArgumentLen, OutStr);
608      } else {
609        assert(ModifierLen == 0 && "Unknown integer modifier");
610
611        // FIXME: Optimize
612        std::string S = llvm::utostr_32(Val);
613        OutStr.append(S.begin(), S.end());
614      }
615      break;
616    }
617    // ---- NAMES and TYPES ----
618    case Diagnostic::ak_identifierinfo: {
619      OutStr.push_back('\'');
620      const IdentifierInfo *II = getArgIdentifier(ArgNo);
621      assert(ModifierLen == 0 && "No modifiers for strings yet");
622      OutStr.append(II->getName(), II->getName() + II->getLength());
623      OutStr.push_back('\'');
624      break;
625    }
626    case Diagnostic::ak_qualtype:
627    case Diagnostic::ak_declarationname:
628      OutStr.push_back('\'');
629      getDiags()->ConvertArgToString(getArgKind(ArgNo), getRawArg(ArgNo),
630                                     Modifier, ModifierLen,
631                                     Argument, ArgumentLen, OutStr);
632      OutStr.push_back('\'');
633      break;
634    }
635  }
636}
637
638/// IncludeInDiagnosticCounts - This method (whose default implementation
639///  returns true) indicates whether the diagnostics handled by this
640///  DiagnosticClient should be included in the number of diagnostics
641///  reported by Diagnostic.
642bool DiagnosticClient::IncludeInDiagnosticCounts() const { return true; }
643