Diagnostic.cpp revision 0827408865e32789e0ec4b8113a302ccdc531423 
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/PartialDiagnostic.h"
17#include "llvm/ADT/SmallVector.h"
18#include "llvm/Support/raw_ostream.h"
19using namespace clang;
20
21static void DummyArgToStringFn(Diagnostic::ArgumentKind AK, intptr_t QT,
22                               const char *Modifier, unsigned ML,
23                               const char *Argument, unsigned ArgLen,
24                               const Diagnostic::ArgumentValue *PrevArgs,
25                               unsigned NumPrevArgs,
26                               llvm::SmallVectorImpl<char> &Output,
27                               void *Cookie) {
28  const char *Str = "<can't format argument>";
29  Output.append(Str, Str+strlen(Str));
30}
31
32
33Diagnostic::Diagnostic(const llvm::IntrusiveRefCntPtr<DiagnosticIDs> &diags,
34                       DiagnosticClient *client, bool ShouldOwnClient)
35  : Diags(diags), Client(client), OwnsDiagClient(ShouldOwnClient),
36    SourceMgr(0) {
37  ArgToStringFn = DummyArgToStringFn;
38  ArgToStringCookie = 0;
39
40  AllExtensionsSilenced = 0;
41  IgnoreAllWarnings = false;
42  WarningsAsErrors = false;
43  ErrorsAsFatal = false;
44  SuppressSystemWarnings = false;
45  SuppressAllDiagnostics = false;
46  ShowOverloads = Ovl_All;
47  ExtBehavior = Ext_Ignore;
48
49  ErrorLimit = 0;
50  TemplateBacktraceLimit = 0;
51
52  // Create a DiagState and DiagStatePoint representing diagnostic changes
53  // through command-line.
54  DiagStates.push_back(DiagState());
55  PushDiagStatePoint(&DiagStates.back(), SourceLocation());
56
57  Reset();
58}
59
60Diagnostic::~Diagnostic() {
61  if (OwnsDiagClient)
62    delete Client;
63}
64
65
66void Diagnostic::pushMappings(SourceLocation Loc) {
67  DiagStateOnPushStack.push_back(GetCurDiagState());
68}
69
70bool Diagnostic::popMappings(SourceLocation Loc) {
71  if (DiagStateOnPushStack.empty())
72    return false;
73
74  if (DiagStateOnPushStack.back() != GetCurDiagState()) {
75    // State changed at some point between push/pop.
76    PushDiagStatePoint(DiagStateOnPushStack.back(), Loc);
77  }
78  DiagStateOnPushStack.pop_back();
79  return true;
80}
81
82void Diagnostic::Reset() {
83  ErrorOccurred = false;
84  FatalErrorOccurred = false;
85
86  NumWarnings = 0;
87  NumErrors = 0;
88  NumErrorsSuppressed = 0;
89  CurDiagID = ~0U;
90  // Set LastDiagLevel to an "unset" state. If we set it to 'Ignored', notes
91  // using a Diagnostic associated to a translation unit that follow
92  // diagnostics from a Diagnostic associated to anoter t.u. will not be
93  // displayed.
94  LastDiagLevel = (DiagnosticIDs::Level)-1;
95  DelayedDiagID = 0;
96}
97
98void Diagnostic::SetDelayedDiagnostic(unsigned DiagID, llvm::StringRef Arg1,
99                                      llvm::StringRef Arg2) {
100  if (DelayedDiagID)
101    return;
102
103  DelayedDiagID = DiagID;
104  DelayedDiagArg1 = Arg1.str();
105  DelayedDiagArg2 = Arg2.str();
106}
107
108void Diagnostic::ReportDelayed() {
109  Report(DelayedDiagID) << DelayedDiagArg1 << DelayedDiagArg2;
110  DelayedDiagID = 0;
111  DelayedDiagArg1.clear();
112  DelayedDiagArg2.clear();
113}
114
115Diagnostic::DiagStatePointsTy::iterator
116Diagnostic::GetDiagStatePointForLoc(SourceLocation L) const {
117  assert(!DiagStatePoints.empty());
118  assert(DiagStatePoints.front().Loc.isInvalid() &&
119         "Should have created a DiagStatePoint for command-line");
120
121  FullSourceLoc Loc(L, *SourceMgr);
122  if (Loc.isInvalid())
123    return DiagStatePoints.end() - 1;
124
125  DiagStatePointsTy::iterator Pos = DiagStatePoints.end();
126  FullSourceLoc LastStateChangePos = DiagStatePoints.back().Loc;
127  if (LastStateChangePos.isValid() &&
128      Loc.isBeforeInTranslationUnitThan(LastStateChangePos))
129    Pos = std::upper_bound(DiagStatePoints.begin(), DiagStatePoints.end(),
130                           DiagStatePoint(0, Loc));
131  --Pos;
132  return Pos;
133}
134
135/// \brief This allows the client to specify that certain
136/// warnings are ignored.  Notes can never be mapped, errors can only be
137/// mapped to fatal, and WARNINGs and EXTENSIONs can be mapped arbitrarily.
138///
139/// \param The source location that this change of diagnostic state should
140/// take affect. It can be null if we are setting the latest state.
141void Diagnostic::setDiagnosticMapping(diag::kind Diag, diag::Mapping Map,
142                                      SourceLocation L) {
143  assert(Diag < diag::DIAG_UPPER_LIMIT &&
144         "Can only map builtin diagnostics");
145  assert((Diags->isBuiltinWarningOrExtension(Diag) ||
146          (Map == diag::MAP_FATAL || Map == diag::MAP_ERROR)) &&
147         "Cannot map errors into warnings!");
148  assert(!DiagStatePoints.empty());
149
150  FullSourceLoc Loc(L, *SourceMgr);
151  FullSourceLoc LastStateChangePos = DiagStatePoints.back().Loc;
152
153  // Common case; setting all the diagnostics of a group in one place.
154  if (Loc.isInvalid() || Loc == LastStateChangePos) {
155    setDiagnosticMappingInternal(Diag, Map, GetCurDiagState(), true);
156    return;
157  }
158
159  // Another common case; modifying diagnostic state in a source location
160  // after the previous one.
161  if ((Loc.isValid() && LastStateChangePos.isInvalid()) ||
162      LastStateChangePos.isBeforeInTranslationUnitThan(Loc)) {
163    // A diagnostic pragma occured, create a new DiagState initialized with
164    // the current one and a new DiagStatePoint to record at which location
165    // the new state became active.
166    DiagStates.push_back(*GetCurDiagState());
167    PushDiagStatePoint(&DiagStates.back(), Loc);
168    setDiagnosticMappingInternal(Diag, Map, GetCurDiagState(), true);
169    return;
170  }
171
172  // We allow setting the diagnostic state in random source order for
173  // completeness but it should not be actually happening in normal practice.
174
175  DiagStatePointsTy::iterator Pos = GetDiagStatePointForLoc(Loc);
176  assert(Pos != DiagStatePoints.end());
177
178  // Update all diagnostic states that are active after the given location.
179  for (DiagStatePointsTy::iterator
180         I = Pos+1, E = DiagStatePoints.end(); I != E; ++I) {
181    setDiagnosticMappingInternal(Diag, Map, I->State, true);
182  }
183
184  // If the location corresponds to an existing point, just update its state.
185  if (Pos->Loc == Loc) {
186    setDiagnosticMappingInternal(Diag, Map, Pos->State, true);
187    return;
188  }
189
190  // Create a new state/point and fit it into the vector of DiagStatePoints
191  // so that the vector is always ordered according to location.
192  Pos->Loc.isBeforeInTranslationUnitThan(Loc);
193  DiagStates.push_back(*Pos->State);
194  DiagState *NewState = &DiagStates.back();
195  setDiagnosticMappingInternal(Diag, Map, NewState, true);
196  DiagStatePoints.insert(Pos+1, DiagStatePoint(NewState,
197                                               FullSourceLoc(Loc, *SourceMgr)));
198}
199
200void DiagnosticBuilder::FlushCounts() {
201  DiagObj->NumDiagArgs = NumArgs;
202  DiagObj->NumDiagRanges = NumRanges;
203  DiagObj->NumFixItHints = NumFixItHints;
204}
205
206bool DiagnosticBuilder::Emit() {
207  // If DiagObj is null, then its soul was stolen by the copy ctor
208  // or the user called Emit().
209  if (DiagObj == 0) return false;
210
211  // When emitting diagnostics, we set the final argument count into
212  // the Diagnostic object.
213  FlushCounts();
214
215  // Process the diagnostic, sending the accumulated information to the
216  // DiagnosticClient.
217  bool Emitted = DiagObj->ProcessDiag();
218
219  // Clear out the current diagnostic object.
220  unsigned DiagID = DiagObj->CurDiagID;
221  DiagObj->Clear();
222
223  // If there was a delayed diagnostic, emit it now.
224  if (DiagObj->DelayedDiagID && DiagObj->DelayedDiagID != DiagID)
225    DiagObj->ReportDelayed();
226
227  // This diagnostic is dead.
228  DiagObj = 0;
229
230  return Emitted;
231}
232
233
234DiagnosticClient::~DiagnosticClient() {}
235
236void DiagnosticClient::HandleDiagnostic(Diagnostic::Level DiagLevel,
237                                        const DiagnosticInfo &Info) {
238  if (!IncludeInDiagnosticCounts())
239    return;
240
241  if (DiagLevel == Diagnostic::Warning)
242    ++NumWarnings;
243  else if (DiagLevel >= Diagnostic::Error)
244    ++NumErrors;
245}
246
247/// ModifierIs - Return true if the specified modifier matches specified string.
248template <std::size_t StrLen>
249static bool ModifierIs(const char *Modifier, unsigned ModifierLen,
250                       const char (&Str)[StrLen]) {
251  return StrLen-1 == ModifierLen && !memcmp(Modifier, Str, StrLen-1);
252}
253
254/// ScanForward - Scans forward, looking for the given character, skipping
255/// nested clauses and escaped characters.
256static const char *ScanFormat(const char *I, const char *E, char Target) {
257  unsigned Depth = 0;
258
259  for ( ; I != E; ++I) {
260    if (Depth == 0 && *I == Target) return I;
261    if (Depth != 0 && *I == '}') Depth--;
262
263    if (*I == '%') {
264      I++;
265      if (I == E) break;
266
267      // Escaped characters get implicitly skipped here.
268
269      // Format specifier.
270      if (!isdigit(*I) && !ispunct(*I)) {
271        for (I++; I != E && !isdigit(*I) && *I != '{'; I++) ;
272        if (I == E) break;
273        if (*I == '{')
274          Depth++;
275      }
276    }
277  }
278  return E;
279}
280
281/// HandleSelectModifier - Handle the integer 'select' modifier.  This is used
282/// like this:  %select{foo|bar|baz}2.  This means that the integer argument
283/// "%2" has a value from 0-2.  If the value is 0, the diagnostic prints 'foo'.
284/// If the value is 1, it prints 'bar'.  If it has the value 2, it prints 'baz'.
285/// This is very useful for certain classes of variant diagnostics.
286static void HandleSelectModifier(const DiagnosticInfo &DInfo, unsigned ValNo,
287                                 const char *Argument, unsigned ArgumentLen,
288                                 llvm::SmallVectorImpl<char> &OutStr) {
289  const char *ArgumentEnd = Argument+ArgumentLen;
290
291  // Skip over 'ValNo' |'s.
292  while (ValNo) {
293    const char *NextVal = ScanFormat(Argument, ArgumentEnd, '|');
294    assert(NextVal != ArgumentEnd && "Value for integer select modifier was"
295           " larger than the number of options in the diagnostic string!");
296    Argument = NextVal+1;  // Skip this string.
297    --ValNo;
298  }
299
300  // Get the end of the value.  This is either the } or the |.
301  const char *EndPtr = ScanFormat(Argument, ArgumentEnd, '|');
302
303  // Recursively format the result of the select clause into the output string.
304  DInfo.FormatDiagnostic(Argument, EndPtr, OutStr);
305}
306
307/// HandleIntegerSModifier - Handle the integer 's' modifier.  This adds the
308/// letter 's' to the string if the value is not 1.  This is used in cases like
309/// this:  "you idiot, you have %4 parameter%s4!".
310static void HandleIntegerSModifier(unsigned ValNo,
311                                   llvm::SmallVectorImpl<char> &OutStr) {
312  if (ValNo != 1)
313    OutStr.push_back('s');
314}
315
316/// HandleOrdinalModifier - Handle the integer 'ord' modifier.  This
317/// prints the ordinal form of the given integer, with 1 corresponding
318/// to the first ordinal.  Currently this is hard-coded to use the
319/// English form.
320static void HandleOrdinalModifier(unsigned ValNo,
321                                  llvm::SmallVectorImpl<char> &OutStr) {
322  assert(ValNo != 0 && "ValNo must be strictly positive!");
323
324  llvm::raw_svector_ostream Out(OutStr);
325
326  // We could use text forms for the first N ordinals, but the numeric
327  // forms are actually nicer in diagnostics because they stand out.
328  Out << ValNo;
329
330  // It is critically important that we do this perfectly for
331  // user-written sequences with over 100 elements.
332  switch (ValNo % 100) {
333  case 11:
334  case 12:
335  case 13:
336    Out << "th"; return;
337  default:
338    switch (ValNo % 10) {
339    case 1: Out << "st"; return;
340    case 2: Out << "nd"; return;
341    case 3: Out << "rd"; return;
342    default: Out << "th"; return;
343    }
344  }
345}
346
347
348/// PluralNumber - Parse an unsigned integer and advance Start.
349static unsigned PluralNumber(const char *&Start, const char *End) {
350  // Programming 101: Parse a decimal number :-)
351  unsigned Val = 0;
352  while (Start != End && *Start >= '0' && *Start <= '9') {
353    Val *= 10;
354    Val += *Start - '0';
355    ++Start;
356  }
357  return Val;
358}
359
360/// TestPluralRange - Test if Val is in the parsed range. Modifies Start.
361static bool TestPluralRange(unsigned Val, const char *&Start, const char *End) {
362  if (*Start != '[') {
363    unsigned Ref = PluralNumber(Start, End);
364    return Ref == Val;
365  }
366
367  ++Start;
368  unsigned Low = PluralNumber(Start, End);
369  assert(*Start == ',' && "Bad plural expression syntax: expected ,");
370  ++Start;
371  unsigned High = PluralNumber(Start, End);
372  assert(*Start == ']' && "Bad plural expression syntax: expected )");
373  ++Start;
374  return Low <= Val && Val <= High;
375}
376
377/// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier.
378static bool EvalPluralExpr(unsigned ValNo, const char *Start, const char *End) {
379  // Empty condition?
380  if (*Start == ':')
381    return true;
382
383  while (1) {
384    char C = *Start;
385    if (C == '%') {
386      // Modulo expression
387      ++Start;
388      unsigned Arg = PluralNumber(Start, End);
389      assert(*Start == '=' && "Bad plural expression syntax: expected =");
390      ++Start;
391      unsigned ValMod = ValNo % Arg;
392      if (TestPluralRange(ValMod, Start, End))
393        return true;
394    } else {
395      assert((C == '[' || (C >= '0' && C <= '9')) &&
396             "Bad plural expression syntax: unexpected character");
397      // Range expression
398      if (TestPluralRange(ValNo, Start, End))
399        return true;
400    }
401
402    // Scan for next or-expr part.
403    Start = std::find(Start, End, ',');
404    if (Start == End)
405      break;
406    ++Start;
407  }
408  return false;
409}
410
411/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used
412/// for complex plural forms, or in languages where all plurals are complex.
413/// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are
414/// conditions that are tested in order, the form corresponding to the first
415/// that applies being emitted. The empty condition is always true, making the
416/// last form a default case.
417/// Conditions are simple boolean expressions, where n is the number argument.
418/// Here are the rules.
419/// condition  := expression | empty
420/// empty      :=                             -> always true
421/// expression := numeric [',' expression]    -> logical or
422/// numeric    := range                       -> true if n in range
423///             | '%' number '=' range        -> true if n % number in range
424/// range      := number
425///             | '[' number ',' number ']'   -> ranges are inclusive both ends
426///
427/// Here are some examples from the GNU gettext manual written in this form:
428/// English:
429/// {1:form0|:form1}
430/// Latvian:
431/// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0}
432/// Gaeilge:
433/// {1:form0|2:form1|:form2}
434/// Romanian:
435/// {1:form0|0,%100=[1,19]:form1|:form2}
436/// Lithuanian:
437/// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1}
438/// Russian (requires repeated form):
439/// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2}
440/// Slovak
441/// {1:form0|[2,4]:form1|:form2}
442/// Polish (requires repeated form):
443/// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2}
444static void HandlePluralModifier(const DiagnosticInfo &DInfo, unsigned ValNo,
445                                 const char *Argument, unsigned ArgumentLen,
446                                 llvm::SmallVectorImpl<char> &OutStr) {
447  const char *ArgumentEnd = Argument + ArgumentLen;
448  while (1) {
449    assert(Argument < ArgumentEnd && "Plural expression didn't match.");
450    const char *ExprEnd = Argument;
451    while (*ExprEnd != ':') {
452      assert(ExprEnd != ArgumentEnd && "Plural missing expression end");
453      ++ExprEnd;
454    }
455    if (EvalPluralExpr(ValNo, Argument, ExprEnd)) {
456      Argument = ExprEnd + 1;
457      ExprEnd = ScanFormat(Argument, ArgumentEnd, '|');
458
459      // Recursively format the result of the plural clause into the
460      // output string.
461      DInfo.FormatDiagnostic(Argument, ExprEnd, OutStr);
462      return;
463    }
464    Argument = ScanFormat(Argument, ArgumentEnd - 1, '|') + 1;
465  }
466}
467
468
469/// FormatDiagnostic - Format this diagnostic into a string, substituting the
470/// formal arguments into the %0 slots.  The result is appended onto the Str
471/// array.
472void DiagnosticInfo::
473FormatDiagnostic(llvm::SmallVectorImpl<char> &OutStr) const {
474  const char *DiagStr = getDiags()->getDiagnosticIDs()->getDescription(getID());
475  const char *DiagEnd = DiagStr+strlen(DiagStr);
476
477  FormatDiagnostic(DiagStr, DiagEnd, OutStr);
478}
479
480void DiagnosticInfo::
481FormatDiagnostic(const char *DiagStr, const char *DiagEnd,
482                 llvm::SmallVectorImpl<char> &OutStr) const {
483
484  /// FormattedArgs - Keep track of all of the arguments formatted by
485  /// ConvertArgToString and pass them into subsequent calls to
486  /// ConvertArgToString, allowing the implementation to avoid redundancies in
487  /// obvious cases.
488  llvm::SmallVector<Diagnostic::ArgumentValue, 8> FormattedArgs;
489
490  while (DiagStr != DiagEnd) {
491    if (DiagStr[0] != '%') {
492      // Append non-%0 substrings to Str if we have one.
493      const char *StrEnd = std::find(DiagStr, DiagEnd, '%');
494      OutStr.append(DiagStr, StrEnd);
495      DiagStr = StrEnd;
496      continue;
497    } else if (ispunct(DiagStr[1])) {
498      OutStr.push_back(DiagStr[1]);  // %% -> %.
499      DiagStr += 2;
500      continue;
501    }
502
503    // Skip the %.
504    ++DiagStr;
505
506    // This must be a placeholder for a diagnostic argument.  The format for a
507    // placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0".
508    // The digit is a number from 0-9 indicating which argument this comes from.
509    // The modifier is a string of digits from the set [-a-z]+, arguments is a
510    // brace enclosed string.
511    const char *Modifier = 0, *Argument = 0;
512    unsigned ModifierLen = 0, ArgumentLen = 0;
513
514    // Check to see if we have a modifier.  If so eat it.
515    if (!isdigit(DiagStr[0])) {
516      Modifier = DiagStr;
517      while (DiagStr[0] == '-' ||
518             (DiagStr[0] >= 'a' && DiagStr[0] <= 'z'))
519        ++DiagStr;
520      ModifierLen = DiagStr-Modifier;
521
522      // If we have an argument, get it next.
523      if (DiagStr[0] == '{') {
524        ++DiagStr; // Skip {.
525        Argument = DiagStr;
526
527        DiagStr = ScanFormat(DiagStr, DiagEnd, '}');
528        assert(DiagStr != DiagEnd && "Mismatched {}'s in diagnostic string!");
529        ArgumentLen = DiagStr-Argument;
530        ++DiagStr;  // Skip }.
531      }
532    }
533
534    assert(isdigit(*DiagStr) && "Invalid format for argument in diagnostic");
535    unsigned ArgNo = *DiagStr++ - '0';
536
537    Diagnostic::ArgumentKind Kind = getArgKind(ArgNo);
538
539    switch (Kind) {
540    // ---- STRINGS ----
541    case Diagnostic::ak_std_string: {
542      const std::string &S = getArgStdStr(ArgNo);
543      assert(ModifierLen == 0 && "No modifiers for strings yet");
544      OutStr.append(S.begin(), S.end());
545      break;
546    }
547    case Diagnostic::ak_c_string: {
548      const char *S = getArgCStr(ArgNo);
549      assert(ModifierLen == 0 && "No modifiers for strings yet");
550
551      // Don't crash if get passed a null pointer by accident.
552      if (!S)
553        S = "(null)";
554
555      OutStr.append(S, S + strlen(S));
556      break;
557    }
558    // ---- INTEGERS ----
559    case Diagnostic::ak_sint: {
560      int Val = getArgSInt(ArgNo);
561
562      if (ModifierIs(Modifier, ModifierLen, "select")) {
563        HandleSelectModifier(*this, (unsigned)Val, Argument, ArgumentLen,
564                             OutStr);
565      } else if (ModifierIs(Modifier, ModifierLen, "s")) {
566        HandleIntegerSModifier(Val, OutStr);
567      } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
568        HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
569                             OutStr);
570      } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
571        HandleOrdinalModifier((unsigned)Val, OutStr);
572      } else {
573        assert(ModifierLen == 0 && "Unknown integer modifier");
574        llvm::raw_svector_ostream(OutStr) << Val;
575      }
576      break;
577    }
578    case Diagnostic::ak_uint: {
579      unsigned Val = getArgUInt(ArgNo);
580
581      if (ModifierIs(Modifier, ModifierLen, "select")) {
582        HandleSelectModifier(*this, Val, Argument, ArgumentLen, OutStr);
583      } else if (ModifierIs(Modifier, ModifierLen, "s")) {
584        HandleIntegerSModifier(Val, OutStr);
585      } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
586        HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
587                             OutStr);
588      } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
589        HandleOrdinalModifier(Val, OutStr);
590      } else {
591        assert(ModifierLen == 0 && "Unknown integer modifier");
592        llvm::raw_svector_ostream(OutStr) << Val;
593      }
594      break;
595    }
596    // ---- NAMES and TYPES ----
597    case Diagnostic::ak_identifierinfo: {
598      const IdentifierInfo *II = getArgIdentifier(ArgNo);
599      assert(ModifierLen == 0 && "No modifiers for strings yet");
600
601      // Don't crash if get passed a null pointer by accident.
602      if (!II) {
603        const char *S = "(null)";
604        OutStr.append(S, S + strlen(S));
605        continue;
606      }
607
608      llvm::raw_svector_ostream(OutStr) << '\'' << II->getName() << '\'';
609      break;
610    }
611    case Diagnostic::ak_qualtype:
612    case Diagnostic::ak_declarationname:
613    case Diagnostic::ak_nameddecl:
614    case Diagnostic::ak_nestednamespec:
615    case Diagnostic::ak_declcontext:
616      getDiags()->ConvertArgToString(Kind, getRawArg(ArgNo),
617                                     Modifier, ModifierLen,
618                                     Argument, ArgumentLen,
619                                     FormattedArgs.data(), FormattedArgs.size(),
620                                     OutStr);
621      break;
622    }
623
624    // Remember this argument info for subsequent formatting operations.  Turn
625    // std::strings into a null terminated string to make it be the same case as
626    // all the other ones.
627    if (Kind != Diagnostic::ak_std_string)
628      FormattedArgs.push_back(std::make_pair(Kind, getRawArg(ArgNo)));
629    else
630      FormattedArgs.push_back(std::make_pair(Diagnostic::ak_c_string,
631                                        (intptr_t)getArgStdStr(ArgNo).c_str()));
632
633  }
634}
635
636StoredDiagnostic::StoredDiagnostic() { }
637
638StoredDiagnostic::StoredDiagnostic(Diagnostic::Level Level, unsigned ID,
639                                   llvm::StringRef Message)
640  : ID(ID), Level(Level), Loc(), Message(Message) { }
641
642StoredDiagnostic::StoredDiagnostic(Diagnostic::Level Level,
643                                   const DiagnosticInfo &Info)
644  : ID(Info.getID()), Level(Level)
645{
646  assert((Info.getLocation().isInvalid() || Info.hasSourceManager()) &&
647       "Valid source location without setting a source manager for diagnostic");
648  if (Info.getLocation().isValid())
649    Loc = FullSourceLoc(Info.getLocation(), Info.getSourceManager());
650  llvm::SmallString<64> Message;
651  Info.FormatDiagnostic(Message);
652  this->Message.assign(Message.begin(), Message.end());
653
654  Ranges.reserve(Info.getNumRanges());
655  for (unsigned I = 0, N = Info.getNumRanges(); I != N; ++I)
656    Ranges.push_back(Info.getRange(I));
657
658  FixIts.reserve(Info.getNumFixItHints());
659  for (unsigned I = 0, N = Info.getNumFixItHints(); I != N; ++I)
660    FixIts.push_back(Info.getFixItHint(I));
661}
662
663StoredDiagnostic::~StoredDiagnostic() { }
664
665/// IncludeInDiagnosticCounts - This method (whose default implementation
666///  returns true) indicates whether the diagnostics handled by this
667///  DiagnosticClient should be included in the number of diagnostics
668///  reported by Diagnostic.
669bool DiagnosticClient::IncludeInDiagnosticCounts() const { return true; }
670
671PartialDiagnostic::StorageAllocator::StorageAllocator() {
672  for (unsigned I = 0; I != NumCached; ++I)
673    FreeList[I] = Cached + I;
674  NumFreeListEntries = NumCached;
675}
676
677PartialDiagnostic::StorageAllocator::~StorageAllocator() {
678  assert(NumFreeListEntries == NumCached && "A partial is on the lamb");
679}
680