Diagnostic.cpp revision 336f26be05c30c0c65b8b518d68f04c29b43b3d2 
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  FATAL      = 0x06,
37  class_mask = 0x07
38};
39
40/// DiagnosticFlags - A set of flags, or'd together, that describe the
41/// diagnostic.
42#define DIAG(ENUM,FLAGS,DESC) FLAGS,
43static unsigned char DiagnosticFlagsCommon[] = {
44#include "clang/Basic/DiagnosticCommonKinds.def"
45  0
46};
47static unsigned char DiagnosticFlagsLex[] = {
48#include "clang/Basic/DiagnosticLexKinds.def"
49  0
50};
51static unsigned char DiagnosticFlagsParse[] = {
52#include "clang/Basic/DiagnosticParseKinds.def"
53  0
54};
55static unsigned char DiagnosticFlagsAST[] = {
56#include "clang/Basic/DiagnosticASTKinds.def"
57  0
58};
59static unsigned char DiagnosticFlagsSema[] = {
60#include "clang/Basic/DiagnosticSemaKinds.def"
61  0
62};
63static unsigned char DiagnosticFlagsAnalysis[] = {
64#include "clang/Basic/DiagnosticAnalysisKinds.def"
65  0
66};
67#undef DIAG
68
69/// getDiagClass - Return the class field of the diagnostic.
70///
71static unsigned getBuiltinDiagClass(unsigned DiagID) {
72  assert(DiagID < diag::DIAG_UPPER_LIMIT &&
73         "Diagnostic ID out of range!");
74  unsigned res;
75  if (DiagID < diag::DIAG_START_LEX)
76    res = DiagnosticFlagsCommon[DiagID];
77  else if (DiagID < diag::DIAG_START_PARSE)
78    res = DiagnosticFlagsLex[DiagID - diag::DIAG_START_LEX - 1];
79  else if (DiagID < diag::DIAG_START_AST)
80    res = DiagnosticFlagsParse[DiagID - diag::DIAG_START_PARSE - 1];
81  else if (DiagID < diag::DIAG_START_SEMA)
82    res = DiagnosticFlagsAST[DiagID - diag::DIAG_START_AST - 1];
83  else if (DiagID < diag::DIAG_START_ANALYSIS)
84    res = DiagnosticFlagsSema[DiagID - diag::DIAG_START_SEMA - 1];
85  else
86    res = DiagnosticFlagsAnalysis[DiagID - diag::DIAG_START_ANALYSIS - 1];
87  return res & class_mask;
88}
89
90/// DiagnosticText - An english message to print for the diagnostic.  These
91/// should be localized.
92#define DIAG(ENUM,FLAGS,DESC) DESC,
93static const char * const DiagnosticTextCommon[] = {
94#include "clang/Basic/DiagnosticCommonKinds.def"
95  0
96};
97static const char * const DiagnosticTextLex[] = {
98#include "clang/Basic/DiagnosticLexKinds.def"
99  0
100};
101static const char * const DiagnosticTextParse[] = {
102#include "clang/Basic/DiagnosticParseKinds.def"
103  0
104};
105static const char * const DiagnosticTextAST[] = {
106#include "clang/Basic/DiagnosticASTKinds.def"
107  0
108};
109static const char * const DiagnosticTextSema[] = {
110#include "clang/Basic/DiagnosticSemaKinds.def"
111  0
112};
113static const char * const DiagnosticTextAnalysis[] = {
114#include "clang/Basic/DiagnosticAnalysisKinds.def"
115  0
116};
117#undef DIAG
118
119//===----------------------------------------------------------------------===//
120// Custom Diagnostic information
121//===----------------------------------------------------------------------===//
122
123namespace clang {
124  namespace diag {
125    class CustomDiagInfo {
126      typedef std::pair<Diagnostic::Level, std::string> DiagDesc;
127      std::vector<DiagDesc> DiagInfo;
128      std::map<DiagDesc, unsigned> DiagIDs;
129    public:
130
131      /// getDescription - Return the description of the specified custom
132      /// diagnostic.
133      const char *getDescription(unsigned DiagID) const {
134        assert(this && DiagID-DIAG_UPPER_LIMIT < DiagInfo.size() &&
135               "Invalid diagnosic ID");
136        return DiagInfo[DiagID-DIAG_UPPER_LIMIT].second.c_str();
137      }
138
139      /// getLevel - Return the level of the specified custom diagnostic.
140      Diagnostic::Level getLevel(unsigned DiagID) const {
141        assert(this && DiagID-DIAG_UPPER_LIMIT < DiagInfo.size() &&
142               "Invalid diagnosic ID");
143        return DiagInfo[DiagID-DIAG_UPPER_LIMIT].first;
144      }
145
146      unsigned getOrCreateDiagID(Diagnostic::Level L, const char *Message,
147                                 Diagnostic &Diags) {
148        DiagDesc D(L, Message);
149        // Check to see if it already exists.
150        std::map<DiagDesc, unsigned>::iterator I = DiagIDs.lower_bound(D);
151        if (I != DiagIDs.end() && I->first == D)
152          return I->second;
153
154        // If not, assign a new ID.
155        unsigned ID = DiagInfo.size()+DIAG_UPPER_LIMIT;
156        DiagIDs.insert(std::make_pair(D, ID));
157        DiagInfo.push_back(D);
158
159        // If this is a warning, and all warnings are supposed to map to errors,
160        // insert the mapping now.
161        if (L == Diagnostic::Warning && Diags.getWarningsAsErrors())
162          Diags.setDiagnosticMapping((diag::kind)ID, diag::MAP_ERROR);
163        return ID;
164      }
165    };
166
167  } // end diag namespace
168} // end clang namespace
169
170
171//===----------------------------------------------------------------------===//
172// Common Diagnostic implementation
173//===----------------------------------------------------------------------===//
174
175static void DummyArgToStringFn(Diagnostic::ArgumentKind AK, intptr_t QT,
176                               const char *Modifier, unsigned ML,
177                               const char *Argument, unsigned ArgLen,
178                               llvm::SmallVectorImpl<char> &Output) {
179  const char *Str = "<can't format argument>";
180  Output.append(Str, Str+strlen(Str));
181}
182
183
184Diagnostic::Diagnostic(DiagnosticClient *client) : Client(client) {
185  IgnoreAllWarnings = false;
186  WarningsAsErrors = false;
187  WarnOnExtensions = false;
188  ErrorOnExtensions = false;
189  SuppressSystemWarnings = false;
190  // Clear all mappings, setting them to MAP_DEFAULT.
191  memset(DiagMappings, 0, sizeof(DiagMappings));
192
193  ErrorOccurred = false;
194  FatalErrorOccurred = false;
195  NumDiagnostics = 0;
196  NumErrors = 0;
197  CustomDiagInfo = 0;
198  CurDiagID = ~0U;
199  LastDiagLevel = Fatal;
200
201  ArgToStringFn = DummyArgToStringFn;
202}
203
204Diagnostic::~Diagnostic() {
205  delete CustomDiagInfo;
206}
207
208/// getCustomDiagID - Return an ID for a diagnostic with the specified message
209/// and level.  If this is the first request for this diagnosic, it is
210/// registered and created, otherwise the existing ID is returned.
211unsigned Diagnostic::getCustomDiagID(Level L, const char *Message) {
212  if (CustomDiagInfo == 0)
213    CustomDiagInfo = new diag::CustomDiagInfo();
214  return CustomDiagInfo->getOrCreateDiagID(L, Message, *this);
215}
216
217
218/// isBuiltinWarningOrExtension - Return true if the unmapped diagnostic
219/// level of the specified diagnostic ID is a Warning or Extension.
220/// This only works on builtin diagnostics, not custom ones, and is not legal to
221/// call on NOTEs.
222bool Diagnostic::isBuiltinWarningOrExtension(unsigned DiagID) {
223  return DiagID < diag::DIAG_UPPER_LIMIT && getBuiltinDiagClass(DiagID) < ERROR;
224}
225
226
227/// getDescription - Given a diagnostic ID, return a description of the
228/// issue.
229const char *Diagnostic::getDescription(unsigned DiagID) const {
230  if (DiagID < diag::DIAG_START_LEX)
231    return DiagnosticTextCommon[DiagID];
232  else if (DiagID < diag::DIAG_START_PARSE)
233    return DiagnosticTextLex[DiagID - diag::DIAG_START_LEX - 1];
234  else if (DiagID < diag::DIAG_START_AST)
235    return DiagnosticTextParse[DiagID - diag::DIAG_START_PARSE - 1];
236  else if (DiagID < diag::DIAG_START_SEMA)
237    return DiagnosticTextAST[DiagID - diag::DIAG_START_AST - 1];
238  else if (DiagID < diag::DIAG_START_ANALYSIS)
239    return DiagnosticTextSema[DiagID - diag::DIAG_START_SEMA - 1];
240  else if (DiagID < diag::DIAG_UPPER_LIMIT)
241    return DiagnosticTextAnalysis[DiagID - diag::DIAG_START_ANALYSIS - 1];
242  return CustomDiagInfo->getDescription(DiagID);
243}
244
245/// getDiagnosticLevel - Based on the way the client configured the Diagnostic
246/// object, classify the specified diagnostic ID into a Level, consumable by
247/// the DiagnosticClient.
248Diagnostic::Level Diagnostic::getDiagnosticLevel(unsigned DiagID) const {
249  // Handle custom diagnostics, which cannot be mapped.
250  if (DiagID >= diag::DIAG_UPPER_LIMIT)
251    return CustomDiagInfo->getLevel(DiagID);
252
253  unsigned DiagClass = getBuiltinDiagClass(DiagID);
254  assert(DiagClass != NOTE && "Cannot get the diagnostic level of a note!");
255  return getDiagnosticLevel(DiagID, DiagClass);
256}
257
258/// getDiagnosticLevel - Based on the way the client configured the Diagnostic
259/// object, classify the specified diagnostic ID into a Level, consumable by
260/// the DiagnosticClient.
261Diagnostic::Level
262Diagnostic::getDiagnosticLevel(unsigned DiagID, unsigned DiagClass) const {
263  // Specific non-error diagnostics may be mapped to various levels from ignored
264  // to error.  Errors can only be mapped to fatal.
265  switch (getDiagnosticMapping((diag::kind)DiagID)) {
266  case diag::MAP_DEFAULT: break;
267  case diag::MAP_IGNORE:  return Diagnostic::Ignored;
268  case diag::MAP_WARNING: DiagClass = WARNING; break;
269  case diag::MAP_ERROR:   DiagClass = ERROR; break;
270  case diag::MAP_FATAL:   DiagClass = FATAL; break;
271  }
272
273  // Map diagnostic classes based on command line argument settings.
274  if (DiagClass == EXTENSION) {
275    if (ErrorOnExtensions)
276      DiagClass = ERROR;
277    else if (WarnOnExtensions)
278      DiagClass = WARNING;
279    else
280      return Ignored;
281  } else if (DiagClass == EXTWARN) {
282    DiagClass = ErrorOnExtensions ? ERROR : WARNING;
283  }
284
285  // If warnings are globally mapped to ignore or error, do it.
286  if (DiagClass == WARNING) {
287    if (IgnoreAllWarnings)
288      return Diagnostic::Ignored;
289    if (WarningsAsErrors)
290      DiagClass = ERROR;
291  }
292
293  switch (DiagClass) {
294  default: assert(0 && "Unknown diagnostic class!");
295  case WARNING:     return Diagnostic::Warning;
296  case ERROR:       return Diagnostic::Error;
297  case FATAL:       return Diagnostic::Fatal;
298  }
299}
300
301/// ProcessDiag - This is the method used to report a diagnostic that is
302/// finally fully formed.
303void Diagnostic::ProcessDiag() {
304  DiagnosticInfo Info(this);
305
306  // If a fatal error has already been emitted, silence all subsequent
307  // diagnostics.
308  if (FatalErrorOccurred)
309    return;
310
311  // Figure out the diagnostic level of this message.
312  Diagnostic::Level DiagLevel;
313  unsigned DiagID = Info.getID();
314
315  // ShouldEmitInSystemHeader - True if this diagnostic should be produced even
316  // in a system header.
317  bool ShouldEmitInSystemHeader;
318
319  if (DiagID >= diag::DIAG_UPPER_LIMIT) {
320    // Handle custom diagnostics, which cannot be mapped.
321    DiagLevel = CustomDiagInfo->getLevel(DiagID);
322
323    // Custom diagnostics always are emitted in system headers.
324    ShouldEmitInSystemHeader = true;
325  } else {
326    // Get the class of the diagnostic.  If this is a NOTE, map it onto whatever
327    // the diagnostic level was for the previous diagnostic so that it is
328    // filtered the same as the previous diagnostic.
329    unsigned DiagClass = getBuiltinDiagClass(DiagID);
330    if (DiagClass == NOTE) {
331      DiagLevel = Diagnostic::Note;
332      ShouldEmitInSystemHeader = false;  // extra consideration is needed
333    } else {
334      // If this is not an error and we are in a system header, we ignore it.
335      // Check the original Diag ID here, because we also want to ignore
336      // extensions and warnings in -Werror and -pedantic-errors modes, which
337      // *map* warnings/extensions to errors.
338      ShouldEmitInSystemHeader = DiagClass == ERROR;
339
340      DiagLevel = getDiagnosticLevel(DiagID, DiagClass);
341    }
342  }
343
344  if (DiagLevel != Diagnostic::Note)
345    LastDiagLevel = DiagLevel;
346
347  // If the client doesn't care about this message, don't issue it.  If this is
348  // a note and the last real diagnostic was ignored, ignore it too.
349  if (DiagLevel == Diagnostic::Ignored ||
350      (DiagLevel == Diagnostic::Note && LastDiagLevel == Diagnostic::Ignored))
351    return;
352
353  // If this diagnostic is in a system header and is not a clang error, suppress
354  // it.
355  if (SuppressSystemWarnings && !ShouldEmitInSystemHeader &&
356      Info.getLocation().isValid() &&
357      Info.getLocation().getSpellingLoc().isInSystemHeader() &&
358      (DiagLevel != Diagnostic::Note || LastDiagLevel == Diagnostic::Ignored)) {
359    LastDiagLevel = Diagnostic::Ignored;
360    return;
361  }
362
363  if (DiagLevel >= Diagnostic::Error) {
364    ErrorOccurred = true;
365    ++NumErrors;
366
367    if (DiagLevel == Diagnostic::Fatal)
368      FatalErrorOccurred = true;
369  }
370
371  // Finally, report it.
372  Client->HandleDiagnostic(DiagLevel, Info);
373  if (Client->IncludeInDiagnosticCounts()) ++NumDiagnostics;
374}
375
376
377DiagnosticClient::~DiagnosticClient() {}
378
379
380/// ModifierIs - Return true if the specified modifier matches specified string.
381template <std::size_t StrLen>
382static bool ModifierIs(const char *Modifier, unsigned ModifierLen,
383                       const char (&Str)[StrLen]) {
384  return StrLen-1 == ModifierLen && !memcmp(Modifier, Str, StrLen-1);
385}
386
387/// HandleSelectModifier - Handle the integer 'select' modifier.  This is used
388/// like this:  %select{foo|bar|baz}2.  This means that the integer argument
389/// "%2" has a value from 0-2.  If the value is 0, the diagnostic prints 'foo'.
390/// If the value is 1, it prints 'bar'.  If it has the value 2, it prints 'baz'.
391/// This is very useful for certain classes of variant diagnostics.
392static void HandleSelectModifier(unsigned ValNo,
393                                 const char *Argument, unsigned ArgumentLen,
394                                 llvm::SmallVectorImpl<char> &OutStr) {
395  const char *ArgumentEnd = Argument+ArgumentLen;
396
397  // Skip over 'ValNo' |'s.
398  while (ValNo) {
399    const char *NextVal = std::find(Argument, ArgumentEnd, '|');
400    assert(NextVal != ArgumentEnd && "Value for integer select modifier was"
401           " larger than the number of options in the diagnostic string!");
402    Argument = NextVal+1;  // Skip this string.
403    --ValNo;
404  }
405
406  // Get the end of the value.  This is either the } or the |.
407  const char *EndPtr = std::find(Argument, ArgumentEnd, '|');
408  // Add the value to the output string.
409  OutStr.append(Argument, EndPtr);
410}
411
412/// HandleIntegerSModifier - Handle the integer 's' modifier.  This adds the
413/// letter 's' to the string if the value is not 1.  This is used in cases like
414/// this:  "you idiot, you have %4 parameter%s4!".
415static void HandleIntegerSModifier(unsigned ValNo,
416                                   llvm::SmallVectorImpl<char> &OutStr) {
417  if (ValNo != 1)
418    OutStr.push_back('s');
419}
420
421
422/// PluralNumber - Parse an unsigned integer and advance Start.
423static unsigned PluralNumber(const char *&Start, const char *End)
424{
425  // Programming 101: Parse a decimal number :-)
426  unsigned Val = 0;
427  while (Start != End && *Start >= '0' && *Start <= '9') {
428    Val *= 10;
429    Val += *Start - '0';
430    ++Start;
431  }
432  return Val;
433}
434
435/// TestPluralRange - Test if Val is in the parsed range. Modifies Start.
436static bool TestPluralRange(unsigned Val, const char *&Start, const char *End)
437{
438  if (*Start != '[') {
439    unsigned Ref = PluralNumber(Start, End);
440    return Ref == Val;
441  }
442
443  ++Start;
444  unsigned Low = PluralNumber(Start, End);
445  assert(*Start == ',' && "Bad plural expression syntax: expected ,");
446  ++Start;
447  unsigned High = PluralNumber(Start, End);
448  assert(*Start == ']' && "Bad plural expression syntax: expected )");
449  ++Start;
450  return Low <= Val && Val <= High;
451}
452
453/// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier.
454static bool EvalPluralExpr(unsigned ValNo, const char *Start, const char *End)
455{
456  // Empty condition?
457  if (*Start == ':')
458    return true;
459
460  while (1) {
461    char C = *Start;
462    if (C == '%') {
463      // Modulo expression
464      ++Start;
465      unsigned Arg = PluralNumber(Start, End);
466      assert(*Start == '=' && "Bad plural expression syntax: expected =");
467      ++Start;
468      unsigned ValMod = ValNo % Arg;
469      if (TestPluralRange(ValMod, Start, End))
470        return true;
471    } else {
472      assert((C == '[' || (C >= '0' && C <= '9')) &&
473             "Bad plural expression syntax: unexpected character");
474      // Range expression
475      if (TestPluralRange(ValNo, Start, End))
476        return true;
477    }
478
479    // Scan for next or-expr part.
480    Start = std::find(Start, End, ',');
481    if(Start == End)
482      break;
483    ++Start;
484  }
485  return false;
486}
487
488/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used
489/// for complex plural forms, or in languages where all plurals are complex.
490/// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are
491/// conditions that are tested in order, the form corresponding to the first
492/// that applies being emitted. The empty condition is always true, making the
493/// last form a default case.
494/// Conditions are simple boolean expressions, where n is the number argument.
495/// Here are the rules.
496/// condition  := expression | empty
497/// empty      :=                             -> always true
498/// expression := numeric [',' expression]    -> logical or
499/// numeric    := range                       -> true if n in range
500///             | '%' number '=' range        -> true if n % number in range
501/// range      := number
502///             | '[' number ',' number ']'   -> ranges are inclusive both ends
503///
504/// Here are some examples from the GNU gettext manual written in this form:
505/// English:
506/// {1:form0|:form1}
507/// Latvian:
508/// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0}
509/// Gaeilge:
510/// {1:form0|2:form1|:form2}
511/// Romanian:
512/// {1:form0|0,%100=[1,19]:form1|:form2}
513/// Lithuanian:
514/// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1}
515/// Russian (requires repeated form):
516/// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2}
517/// Slovak
518/// {1:form0|[2,4]:form1|:form2}
519/// Polish (requires repeated form):
520/// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2}
521static void HandlePluralModifier(unsigned ValNo,
522                                 const char *Argument, unsigned ArgumentLen,
523                                 llvm::SmallVectorImpl<char> &OutStr)
524{
525  const char *ArgumentEnd = Argument + ArgumentLen;
526  while (1) {
527    assert(Argument < ArgumentEnd && "Plural expression didn't match.");
528    const char *ExprEnd = Argument;
529    while (*ExprEnd != ':') {
530      assert(ExprEnd != ArgumentEnd && "Plural missing expression end");
531      ++ExprEnd;
532    }
533    if (EvalPluralExpr(ValNo, Argument, ExprEnd)) {
534      Argument = ExprEnd + 1;
535      ExprEnd = std::find(Argument, ArgumentEnd, '|');
536      OutStr.append(Argument, ExprEnd);
537      return;
538    }
539    Argument = std::find(Argument, ArgumentEnd - 1, '|') + 1;
540  }
541}
542
543
544/// FormatDiagnostic - Format this diagnostic into a string, substituting the
545/// formal arguments into the %0 slots.  The result is appended onto the Str
546/// array.
547void DiagnosticInfo::
548FormatDiagnostic(llvm::SmallVectorImpl<char> &OutStr) const {
549  const char *DiagStr = getDiags()->getDescription(getID());
550  const char *DiagEnd = DiagStr+strlen(DiagStr);
551
552  while (DiagStr != DiagEnd) {
553    if (DiagStr[0] != '%') {
554      // Append non-%0 substrings to Str if we have one.
555      const char *StrEnd = std::find(DiagStr, DiagEnd, '%');
556      OutStr.append(DiagStr, StrEnd);
557      DiagStr = StrEnd;
558      continue;
559    } else if (DiagStr[1] == '%') {
560      OutStr.push_back('%');  // %% -> %.
561      DiagStr += 2;
562      continue;
563    }
564
565    // Skip the %.
566    ++DiagStr;
567
568    // This must be a placeholder for a diagnostic argument.  The format for a
569    // placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0".
570    // The digit is a number from 0-9 indicating which argument this comes from.
571    // The modifier is a string of digits from the set [-a-z]+, arguments is a
572    // brace enclosed string.
573    const char *Modifier = 0, *Argument = 0;
574    unsigned ModifierLen = 0, ArgumentLen = 0;
575
576    // Check to see if we have a modifier.  If so eat it.
577    if (!isdigit(DiagStr[0])) {
578      Modifier = DiagStr;
579      while (DiagStr[0] == '-' ||
580             (DiagStr[0] >= 'a' && DiagStr[0] <= 'z'))
581        ++DiagStr;
582      ModifierLen = DiagStr-Modifier;
583
584      // If we have an argument, get it next.
585      if (DiagStr[0] == '{') {
586        ++DiagStr; // Skip {.
587        Argument = DiagStr;
588
589        for (; DiagStr[0] != '}'; ++DiagStr)
590          assert(DiagStr[0] && "Mismatched {}'s in diagnostic string!");
591        ArgumentLen = DiagStr-Argument;
592        ++DiagStr;  // Skip }.
593      }
594    }
595
596    assert(isdigit(*DiagStr) && "Invalid format for argument in diagnostic");
597    unsigned ArgNo = *DiagStr++ - '0';
598
599    switch (getArgKind(ArgNo)) {
600    // ---- STRINGS ----
601    case Diagnostic::ak_std_string: {
602      const std::string &S = getArgStdStr(ArgNo);
603      assert(ModifierLen == 0 && "No modifiers for strings yet");
604      OutStr.append(S.begin(), S.end());
605      break;
606    }
607    case Diagnostic::ak_c_string: {
608      const char *S = getArgCStr(ArgNo);
609      assert(ModifierLen == 0 && "No modifiers for strings yet");
610      OutStr.append(S, S + strlen(S));
611      break;
612    }
613    // ---- INTEGERS ----
614    case Diagnostic::ak_sint: {
615      int Val = getArgSInt(ArgNo);
616
617      if (ModifierIs(Modifier, ModifierLen, "select")) {
618        HandleSelectModifier((unsigned)Val, Argument, ArgumentLen, OutStr);
619      } else if (ModifierIs(Modifier, ModifierLen, "s")) {
620        HandleIntegerSModifier(Val, OutStr);
621      } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
622        HandlePluralModifier((unsigned)Val, Argument, ArgumentLen, OutStr);
623      } else {
624        assert(ModifierLen == 0 && "Unknown integer modifier");
625        // FIXME: Optimize
626        std::string S = llvm::itostr(Val);
627        OutStr.append(S.begin(), S.end());
628      }
629      break;
630    }
631    case Diagnostic::ak_uint: {
632      unsigned Val = getArgUInt(ArgNo);
633
634      if (ModifierIs(Modifier, ModifierLen, "select")) {
635        HandleSelectModifier(Val, Argument, ArgumentLen, OutStr);
636      } else if (ModifierIs(Modifier, ModifierLen, "s")) {
637        HandleIntegerSModifier(Val, OutStr);
638      } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
639        HandlePluralModifier((unsigned)Val, Argument, ArgumentLen, OutStr);
640      } else {
641        assert(ModifierLen == 0 && "Unknown integer modifier");
642
643        // FIXME: Optimize
644        std::string S = llvm::utostr_32(Val);
645        OutStr.append(S.begin(), S.end());
646      }
647      break;
648    }
649    // ---- NAMES and TYPES ----
650    case Diagnostic::ak_identifierinfo: {
651      OutStr.push_back('\'');
652      const IdentifierInfo *II = getArgIdentifier(ArgNo);
653      assert(ModifierLen == 0 && "No modifiers for strings yet");
654      OutStr.append(II->getName(), II->getName() + II->getLength());
655      OutStr.push_back('\'');
656      break;
657    }
658    case Diagnostic::ak_qualtype:
659    case Diagnostic::ak_declarationname:
660    case Diagnostic::ak_nameddecl:
661      OutStr.push_back('\'');
662      getDiags()->ConvertArgToString(getArgKind(ArgNo), getRawArg(ArgNo),
663                                     Modifier, ModifierLen,
664                                     Argument, ArgumentLen, OutStr);
665      OutStr.push_back('\'');
666      break;
667    }
668  }
669}
670
671/// IncludeInDiagnosticCounts - This method (whose default implementation
672///  returns true) indicates whether the diagnostics handled by this
673///  DiagnosticClient should be included in the number of diagnostics
674///  reported by Diagnostic.
675bool DiagnosticClient::IncludeInDiagnosticCounts() const { return true; }
676