Diagnostic.cpp revision 40847cfb58acc3cac7d68727df9455ac45f2e118
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" 19#include "llvm/Support/CrashRecoveryContext.h" 20 21using namespace clang; 22 23static void DummyArgToStringFn(DiagnosticsEngine::ArgumentKind AK, intptr_t QT, 24 const char *Modifier, unsigned ML, 25 const char *Argument, unsigned ArgLen, 26 const DiagnosticsEngine::ArgumentValue *PrevArgs, 27 unsigned NumPrevArgs, 28 SmallVectorImpl<char> &Output, 29 void *Cookie, 30 SmallVectorImpl<intptr_t> &QualTypeVals) { 31 const char *Str = "<can't format argument>"; 32 Output.append(Str, Str+strlen(Str)); 33} 34 35 36DiagnosticsEngine::DiagnosticsEngine( 37 const llvm::IntrusiveRefCntPtr<DiagnosticIDs> &diags, 38 DiagnosticConsumer *client, bool ShouldOwnClient) 39 : Diags(diags), Client(client), OwnsDiagClient(ShouldOwnClient), 40 SourceMgr(0) { 41 ArgToStringFn = DummyArgToStringFn; 42 ArgToStringCookie = 0; 43 44 AllExtensionsSilenced = 0; 45 IgnoreAllWarnings = false; 46 WarningsAsErrors = false; 47 EnableAllWarnings = false; 48 ErrorsAsFatal = false; 49 SuppressSystemWarnings = false; 50 SuppressAllDiagnostics = false; 51 ShowOverloads = Ovl_All; 52 ExtBehavior = Ext_Ignore; 53 54 ErrorLimit = 0; 55 TemplateBacktraceLimit = 0; 56 57 Reset(); 58} 59 60DiagnosticsEngine::~DiagnosticsEngine() { 61 if (OwnsDiagClient) 62 delete Client; 63} 64 65void DiagnosticsEngine::setClient(DiagnosticConsumer *client, 66 bool ShouldOwnClient) { 67 if (OwnsDiagClient && Client) 68 delete Client; 69 70 Client = client; 71 OwnsDiagClient = ShouldOwnClient; 72} 73 74void DiagnosticsEngine::pushMappings(SourceLocation Loc) { 75 DiagStateOnPushStack.push_back(GetCurDiagState()); 76} 77 78bool DiagnosticsEngine::popMappings(SourceLocation Loc) { 79 if (DiagStateOnPushStack.empty()) 80 return false; 81 82 if (DiagStateOnPushStack.back() != GetCurDiagState()) { 83 // State changed at some point between push/pop. 84 PushDiagStatePoint(DiagStateOnPushStack.back(), Loc); 85 } 86 DiagStateOnPushStack.pop_back(); 87 return true; 88} 89 90void DiagnosticsEngine::Reset() { 91 ErrorOccurred = false; 92 FatalErrorOccurred = false; 93 UnrecoverableErrorOccurred = false; 94 95 NumWarnings = 0; 96 NumErrors = 0; 97 NumErrorsSuppressed = 0; 98 TrapNumErrorsOccurred = 0; 99 TrapNumUnrecoverableErrorsOccurred = 0; 100 101 CurDiagID = ~0U; 102 // Set LastDiagLevel to an "unset" state. If we set it to 'Ignored', notes 103 // using a DiagnosticsEngine associated to a translation unit that follow 104 // diagnostics from a DiagnosticsEngine associated to anoter t.u. will not be 105 // displayed. 106 LastDiagLevel = (DiagnosticIDs::Level)-1; 107 DelayedDiagID = 0; 108 109 // Clear state related to #pragma diagnostic. 110 DiagStates.clear(); 111 DiagStatePoints.clear(); 112 DiagStateOnPushStack.clear(); 113 114 // Create a DiagState and DiagStatePoint representing diagnostic changes 115 // through command-line. 116 DiagStates.push_back(DiagState()); 117 PushDiagStatePoint(&DiagStates.back(), SourceLocation()); 118} 119 120void DiagnosticsEngine::SetDelayedDiagnostic(unsigned DiagID, StringRef Arg1, 121 StringRef Arg2) { 122 if (DelayedDiagID) 123 return; 124 125 DelayedDiagID = DiagID; 126 DelayedDiagArg1 = Arg1.str(); 127 DelayedDiagArg2 = Arg2.str(); 128} 129 130void DiagnosticsEngine::ReportDelayed() { 131 Report(DelayedDiagID) << DelayedDiagArg1 << DelayedDiagArg2; 132 DelayedDiagID = 0; 133 DelayedDiagArg1.clear(); 134 DelayedDiagArg2.clear(); 135} 136 137DiagnosticsEngine::DiagStatePointsTy::iterator 138DiagnosticsEngine::GetDiagStatePointForLoc(SourceLocation L) const { 139 assert(!DiagStatePoints.empty()); 140 assert(DiagStatePoints.front().Loc.isInvalid() && 141 "Should have created a DiagStatePoint for command-line"); 142 143 FullSourceLoc Loc(L, *SourceMgr); 144 if (Loc.isInvalid()) 145 return DiagStatePoints.end() - 1; 146 147 DiagStatePointsTy::iterator Pos = DiagStatePoints.end(); 148 FullSourceLoc LastStateChangePos = DiagStatePoints.back().Loc; 149 if (LastStateChangePos.isValid() && 150 Loc.isBeforeInTranslationUnitThan(LastStateChangePos)) 151 Pos = std::upper_bound(DiagStatePoints.begin(), DiagStatePoints.end(), 152 DiagStatePoint(0, Loc)); 153 --Pos; 154 return Pos; 155} 156 157/// \brief This allows the client to specify that certain 158/// warnings are ignored. Notes can never be mapped, errors can only be 159/// mapped to fatal, and WARNINGs and EXTENSIONs can be mapped arbitrarily. 160/// 161/// \param The source location that this change of diagnostic state should 162/// take affect. It can be null if we are setting the latest state. 163void DiagnosticsEngine::setDiagnosticMapping(diag::kind Diag, diag::Mapping Map, 164 SourceLocation L) { 165 assert(Diag < diag::DIAG_UPPER_LIMIT && 166 "Can only map builtin diagnostics"); 167 assert((Diags->isBuiltinWarningOrExtension(Diag) || 168 (Map == diag::MAP_FATAL || Map == diag::MAP_ERROR)) && 169 "Cannot map errors into warnings!"); 170 assert(!DiagStatePoints.empty()); 171 172 bool isPragma = L.isValid(); 173 FullSourceLoc Loc(L, *SourceMgr); 174 FullSourceLoc LastStateChangePos = DiagStatePoints.back().Loc; 175 176 // Common case; setting all the diagnostics of a group in one place. 177 if (Loc.isInvalid() || Loc == LastStateChangePos) { 178 setDiagnosticMappingInternal(Diag, Map, GetCurDiagState(), true, isPragma); 179 return; 180 } 181 182 // Another common case; modifying diagnostic state in a source location 183 // after the previous one. 184 if ((Loc.isValid() && LastStateChangePos.isInvalid()) || 185 LastStateChangePos.isBeforeInTranslationUnitThan(Loc)) { 186 // A diagnostic pragma occurred, create a new DiagState initialized with 187 // the current one and a new DiagStatePoint to record at which location 188 // the new state became active. 189 DiagStates.push_back(*GetCurDiagState()); 190 PushDiagStatePoint(&DiagStates.back(), Loc); 191 setDiagnosticMappingInternal(Diag, Map, GetCurDiagState(), true, isPragma); 192 return; 193 } 194 195 // We allow setting the diagnostic state in random source order for 196 // completeness but it should not be actually happening in normal practice. 197 198 DiagStatePointsTy::iterator Pos = GetDiagStatePointForLoc(Loc); 199 assert(Pos != DiagStatePoints.end()); 200 201 // Update all diagnostic states that are active after the given location. 202 for (DiagStatePointsTy::iterator 203 I = Pos+1, E = DiagStatePoints.end(); I != E; ++I) { 204 setDiagnosticMappingInternal(Diag, Map, I->State, true, isPragma); 205 } 206 207 // If the location corresponds to an existing point, just update its state. 208 if (Pos->Loc == Loc) { 209 setDiagnosticMappingInternal(Diag, Map, Pos->State, true, isPragma); 210 return; 211 } 212 213 // Create a new state/point and fit it into the vector of DiagStatePoints 214 // so that the vector is always ordered according to location. 215 Pos->Loc.isBeforeInTranslationUnitThan(Loc); 216 DiagStates.push_back(*Pos->State); 217 DiagState *NewState = &DiagStates.back(); 218 setDiagnosticMappingInternal(Diag, Map, NewState, true, isPragma); 219 DiagStatePoints.insert(Pos+1, DiagStatePoint(NewState, 220 FullSourceLoc(Loc, *SourceMgr))); 221} 222 223void DiagnosticsEngine::Report(const StoredDiagnostic &storedDiag) { 224 assert(CurDiagID == ~0U && "Multiple diagnostics in flight at once!"); 225 226 CurDiagLoc = storedDiag.getLocation(); 227 CurDiagID = storedDiag.getID(); 228 NumDiagArgs = 0; 229 230 NumDiagRanges = storedDiag.range_size(); 231 assert(NumDiagRanges < sizeof(DiagRanges)/sizeof(DiagRanges[0]) && 232 "Too many arguments to diagnostic!"); 233 unsigned i = 0; 234 for (StoredDiagnostic::range_iterator 235 RI = storedDiag.range_begin(), 236 RE = storedDiag.range_end(); RI != RE; ++RI) 237 DiagRanges[i++] = *RI; 238 239 NumFixItHints = storedDiag.fixit_size(); 240 assert(NumFixItHints < DiagnosticsEngine::MaxFixItHints && 241 "Too many fix-it hints!"); 242 i = 0; 243 for (StoredDiagnostic::fixit_iterator 244 FI = storedDiag.fixit_begin(), 245 FE = storedDiag.fixit_end(); FI != FE; ++FI) 246 FixItHints[i++] = *FI; 247 248 assert(Client && "DiagnosticConsumer not set!"); 249 Level DiagLevel = storedDiag.getLevel(); 250 Diagnostic Info(this, storedDiag.getMessage()); 251 Client->HandleDiagnostic(DiagLevel, Info); 252 if (Client->IncludeInDiagnosticCounts()) { 253 if (DiagLevel == DiagnosticsEngine::Warning) 254 ++NumWarnings; 255 } 256 257 CurDiagID = ~0U; 258} 259 260void DiagnosticBuilder::FlushCounts() { 261 DiagObj->NumDiagArgs = NumArgs; 262 DiagObj->NumDiagRanges = NumRanges; 263 DiagObj->NumFixItHints = NumFixItHints; 264} 265 266bool DiagnosticBuilder::Emit() { 267 // If DiagObj is null, then its soul was stolen by the copy ctor 268 // or the user called Emit(). 269 if (DiagObj == 0) return false; 270 271 // When emitting diagnostics, we set the final argument count into 272 // the DiagnosticsEngine object. 273 FlushCounts(); 274 275 // Process the diagnostic, sending the accumulated information to the 276 // DiagnosticConsumer. 277 bool Emitted = DiagObj->ProcessDiag(); 278 279 // Clear out the current diagnostic object. 280 unsigned DiagID = DiagObj->CurDiagID; 281 DiagObj->Clear(); 282 283 // If there was a delayed diagnostic, emit it now. 284 if (DiagObj->DelayedDiagID && DiagObj->DelayedDiagID != DiagID) 285 DiagObj->ReportDelayed(); 286 287 // This diagnostic is dead. 288 DiagObj = 0; 289 290 return Emitted; 291} 292 293 294DiagnosticConsumer::~DiagnosticConsumer() {} 295 296void DiagnosticConsumer::HandleDiagnostic(DiagnosticsEngine::Level DiagLevel, 297 const Diagnostic &Info) { 298 if (!IncludeInDiagnosticCounts()) 299 return; 300 301 if (DiagLevel == DiagnosticsEngine::Warning) 302 ++NumWarnings; 303 else if (DiagLevel >= DiagnosticsEngine::Error) 304 ++NumErrors; 305} 306 307/// ModifierIs - Return true if the specified modifier matches specified string. 308template <std::size_t StrLen> 309static bool ModifierIs(const char *Modifier, unsigned ModifierLen, 310 const char (&Str)[StrLen]) { 311 return StrLen-1 == ModifierLen && !memcmp(Modifier, Str, StrLen-1); 312} 313 314/// ScanForward - Scans forward, looking for the given character, skipping 315/// nested clauses and escaped characters. 316static const char *ScanFormat(const char *I, const char *E, char Target) { 317 unsigned Depth = 0; 318 319 for ( ; I != E; ++I) { 320 if (Depth == 0 && *I == Target) return I; 321 if (Depth != 0 && *I == '}') Depth--; 322 323 if (*I == '%') { 324 I++; 325 if (I == E) break; 326 327 // Escaped characters get implicitly skipped here. 328 329 // Format specifier. 330 if (!isdigit(*I) && !ispunct(*I)) { 331 for (I++; I != E && !isdigit(*I) && *I != '{'; I++) ; 332 if (I == E) break; 333 if (*I == '{') 334 Depth++; 335 } 336 } 337 } 338 return E; 339} 340 341/// HandleSelectModifier - Handle the integer 'select' modifier. This is used 342/// like this: %select{foo|bar|baz}2. This means that the integer argument 343/// "%2" has a value from 0-2. If the value is 0, the diagnostic prints 'foo'. 344/// If the value is 1, it prints 'bar'. If it has the value 2, it prints 'baz'. 345/// This is very useful for certain classes of variant diagnostics. 346static void HandleSelectModifier(const Diagnostic &DInfo, unsigned ValNo, 347 const char *Argument, unsigned ArgumentLen, 348 SmallVectorImpl<char> &OutStr) { 349 const char *ArgumentEnd = Argument+ArgumentLen; 350 351 // Skip over 'ValNo' |'s. 352 while (ValNo) { 353 const char *NextVal = ScanFormat(Argument, ArgumentEnd, '|'); 354 assert(NextVal != ArgumentEnd && "Value for integer select modifier was" 355 " larger than the number of options in the diagnostic string!"); 356 Argument = NextVal+1; // Skip this string. 357 --ValNo; 358 } 359 360 // Get the end of the value. This is either the } or the |. 361 const char *EndPtr = ScanFormat(Argument, ArgumentEnd, '|'); 362 363 // Recursively format the result of the select clause into the output string. 364 DInfo.FormatDiagnostic(Argument, EndPtr, OutStr); 365} 366 367/// HandleIntegerSModifier - Handle the integer 's' modifier. This adds the 368/// letter 's' to the string if the value is not 1. This is used in cases like 369/// this: "you idiot, you have %4 parameter%s4!". 370static void HandleIntegerSModifier(unsigned ValNo, 371 SmallVectorImpl<char> &OutStr) { 372 if (ValNo != 1) 373 OutStr.push_back('s'); 374} 375 376/// HandleOrdinalModifier - Handle the integer 'ord' modifier. This 377/// prints the ordinal form of the given integer, with 1 corresponding 378/// to the first ordinal. Currently this is hard-coded to use the 379/// English form. 380static void HandleOrdinalModifier(unsigned ValNo, 381 SmallVectorImpl<char> &OutStr) { 382 assert(ValNo != 0 && "ValNo must be strictly positive!"); 383 384 llvm::raw_svector_ostream Out(OutStr); 385 386 // We could use text forms for the first N ordinals, but the numeric 387 // forms are actually nicer in diagnostics because they stand out. 388 Out << ValNo; 389 390 // It is critically important that we do this perfectly for 391 // user-written sequences with over 100 elements. 392 switch (ValNo % 100) { 393 case 11: 394 case 12: 395 case 13: 396 Out << "th"; return; 397 default: 398 switch (ValNo % 10) { 399 case 1: Out << "st"; return; 400 case 2: Out << "nd"; return; 401 case 3: Out << "rd"; return; 402 default: Out << "th"; return; 403 } 404 } 405} 406 407 408/// PluralNumber - Parse an unsigned integer and advance Start. 409static unsigned PluralNumber(const char *&Start, const char *End) { 410 // Programming 101: Parse a decimal number :-) 411 unsigned Val = 0; 412 while (Start != End && *Start >= '0' && *Start <= '9') { 413 Val *= 10; 414 Val += *Start - '0'; 415 ++Start; 416 } 417 return Val; 418} 419 420/// TestPluralRange - Test if Val is in the parsed range. Modifies Start. 421static bool TestPluralRange(unsigned Val, const char *&Start, const char *End) { 422 if (*Start != '[') { 423 unsigned Ref = PluralNumber(Start, End); 424 return Ref == Val; 425 } 426 427 ++Start; 428 unsigned Low = PluralNumber(Start, End); 429 assert(*Start == ',' && "Bad plural expression syntax: expected ,"); 430 ++Start; 431 unsigned High = PluralNumber(Start, End); 432 assert(*Start == ']' && "Bad plural expression syntax: expected )"); 433 ++Start; 434 return Low <= Val && Val <= High; 435} 436 437/// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier. 438static bool EvalPluralExpr(unsigned ValNo, const char *Start, const char *End) { 439 // Empty condition? 440 if (*Start == ':') 441 return true; 442 443 while (1) { 444 char C = *Start; 445 if (C == '%') { 446 // Modulo expression 447 ++Start; 448 unsigned Arg = PluralNumber(Start, End); 449 assert(*Start == '=' && "Bad plural expression syntax: expected ="); 450 ++Start; 451 unsigned ValMod = ValNo % Arg; 452 if (TestPluralRange(ValMod, Start, End)) 453 return true; 454 } else { 455 assert((C == '[' || (C >= '0' && C <= '9')) && 456 "Bad plural expression syntax: unexpected character"); 457 // Range expression 458 if (TestPluralRange(ValNo, Start, End)) 459 return true; 460 } 461 462 // Scan for next or-expr part. 463 Start = std::find(Start, End, ','); 464 if (Start == End) 465 break; 466 ++Start; 467 } 468 return false; 469} 470 471/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used 472/// for complex plural forms, or in languages where all plurals are complex. 473/// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are 474/// conditions that are tested in order, the form corresponding to the first 475/// that applies being emitted. The empty condition is always true, making the 476/// last form a default case. 477/// Conditions are simple boolean expressions, where n is the number argument. 478/// Here are the rules. 479/// condition := expression | empty 480/// empty := -> always true 481/// expression := numeric [',' expression] -> logical or 482/// numeric := range -> true if n in range 483/// | '%' number '=' range -> true if n % number in range 484/// range := number 485/// | '[' number ',' number ']' -> ranges are inclusive both ends 486/// 487/// Here are some examples from the GNU gettext manual written in this form: 488/// English: 489/// {1:form0|:form1} 490/// Latvian: 491/// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0} 492/// Gaeilge: 493/// {1:form0|2:form1|:form2} 494/// Romanian: 495/// {1:form0|0,%100=[1,19]:form1|:form2} 496/// Lithuanian: 497/// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1} 498/// Russian (requires repeated form): 499/// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2} 500/// Slovak 501/// {1:form0|[2,4]:form1|:form2} 502/// Polish (requires repeated form): 503/// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2} 504static void HandlePluralModifier(const Diagnostic &DInfo, unsigned ValNo, 505 const char *Argument, unsigned ArgumentLen, 506 SmallVectorImpl<char> &OutStr) { 507 const char *ArgumentEnd = Argument + ArgumentLen; 508 while (1) { 509 assert(Argument < ArgumentEnd && "Plural expression didn't match."); 510 const char *ExprEnd = Argument; 511 while (*ExprEnd != ':') { 512 assert(ExprEnd != ArgumentEnd && "Plural missing expression end"); 513 ++ExprEnd; 514 } 515 if (EvalPluralExpr(ValNo, Argument, ExprEnd)) { 516 Argument = ExprEnd + 1; 517 ExprEnd = ScanFormat(Argument, ArgumentEnd, '|'); 518 519 // Recursively format the result of the plural clause into the 520 // output string. 521 DInfo.FormatDiagnostic(Argument, ExprEnd, OutStr); 522 return; 523 } 524 Argument = ScanFormat(Argument, ArgumentEnd - 1, '|') + 1; 525 } 526} 527 528 529/// FormatDiagnostic - Format this diagnostic into a string, substituting the 530/// formal arguments into the %0 slots. The result is appended onto the Str 531/// array. 532void Diagnostic:: 533FormatDiagnostic(SmallVectorImpl<char> &OutStr) const { 534 if (!StoredDiagMessage.empty()) { 535 OutStr.append(StoredDiagMessage.begin(), StoredDiagMessage.end()); 536 return; 537 } 538 539 StringRef Diag = 540 getDiags()->getDiagnosticIDs()->getDescription(getID()); 541 542 FormatDiagnostic(Diag.begin(), Diag.end(), OutStr); 543} 544 545void Diagnostic:: 546FormatDiagnostic(const char *DiagStr, const char *DiagEnd, 547 SmallVectorImpl<char> &OutStr) const { 548 549 /// FormattedArgs - Keep track of all of the arguments formatted by 550 /// ConvertArgToString and pass them into subsequent calls to 551 /// ConvertArgToString, allowing the implementation to avoid redundancies in 552 /// obvious cases. 553 SmallVector<DiagnosticsEngine::ArgumentValue, 8> FormattedArgs; 554 555 /// QualTypeVals - Pass a vector of arrays so that QualType names can be 556 /// compared to see if more information is needed to be printed. 557 SmallVector<intptr_t, 2> QualTypeVals; 558 for (unsigned i = 0, e = getNumArgs(); i < e; ++i) 559 if (getArgKind(i) == DiagnosticsEngine::ak_qualtype) 560 QualTypeVals.push_back(getRawArg(i)); 561 562 while (DiagStr != DiagEnd) { 563 if (DiagStr[0] != '%') { 564 // Append non-%0 substrings to Str if we have one. 565 const char *StrEnd = std::find(DiagStr, DiagEnd, '%'); 566 OutStr.append(DiagStr, StrEnd); 567 DiagStr = StrEnd; 568 continue; 569 } else if (ispunct(DiagStr[1])) { 570 OutStr.push_back(DiagStr[1]); // %% -> %. 571 DiagStr += 2; 572 continue; 573 } 574 575 // Skip the %. 576 ++DiagStr; 577 578 // This must be a placeholder for a diagnostic argument. The format for a 579 // placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0". 580 // The digit is a number from 0-9 indicating which argument this comes from. 581 // The modifier is a string of digits from the set [-a-z]+, arguments is a 582 // brace enclosed string. 583 const char *Modifier = 0, *Argument = 0; 584 unsigned ModifierLen = 0, ArgumentLen = 0; 585 586 // Check to see if we have a modifier. If so eat it. 587 if (!isdigit(DiagStr[0])) { 588 Modifier = DiagStr; 589 while (DiagStr[0] == '-' || 590 (DiagStr[0] >= 'a' && DiagStr[0] <= 'z')) 591 ++DiagStr; 592 ModifierLen = DiagStr-Modifier; 593 594 // If we have an argument, get it next. 595 if (DiagStr[0] == '{') { 596 ++DiagStr; // Skip {. 597 Argument = DiagStr; 598 599 DiagStr = ScanFormat(DiagStr, DiagEnd, '}'); 600 assert(DiagStr != DiagEnd && "Mismatched {}'s in diagnostic string!"); 601 ArgumentLen = DiagStr-Argument; 602 ++DiagStr; // Skip }. 603 } 604 } 605 606 assert(isdigit(*DiagStr) && "Invalid format for argument in diagnostic"); 607 unsigned ArgNo = *DiagStr++ - '0'; 608 609 DiagnosticsEngine::ArgumentKind Kind = getArgKind(ArgNo); 610 611 switch (Kind) { 612 // ---- STRINGS ---- 613 case DiagnosticsEngine::ak_std_string: { 614 const std::string &S = getArgStdStr(ArgNo); 615 assert(ModifierLen == 0 && "No modifiers for strings yet"); 616 OutStr.append(S.begin(), S.end()); 617 break; 618 } 619 case DiagnosticsEngine::ak_c_string: { 620 const char *S = getArgCStr(ArgNo); 621 assert(ModifierLen == 0 && "No modifiers for strings yet"); 622 623 // Don't crash if get passed a null pointer by accident. 624 if (!S) 625 S = "(null)"; 626 627 OutStr.append(S, S + strlen(S)); 628 break; 629 } 630 // ---- INTEGERS ---- 631 case DiagnosticsEngine::ak_sint: { 632 int Val = getArgSInt(ArgNo); 633 634 if (ModifierIs(Modifier, ModifierLen, "select")) { 635 HandleSelectModifier(*this, (unsigned)Val, Argument, ArgumentLen, 636 OutStr); 637 } else if (ModifierIs(Modifier, ModifierLen, "s")) { 638 HandleIntegerSModifier(Val, OutStr); 639 } else if (ModifierIs(Modifier, ModifierLen, "plural")) { 640 HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen, 641 OutStr); 642 } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) { 643 HandleOrdinalModifier((unsigned)Val, OutStr); 644 } else { 645 assert(ModifierLen == 0 && "Unknown integer modifier"); 646 llvm::raw_svector_ostream(OutStr) << Val; 647 } 648 break; 649 } 650 case DiagnosticsEngine::ak_uint: { 651 unsigned Val = getArgUInt(ArgNo); 652 653 if (ModifierIs(Modifier, ModifierLen, "select")) { 654 HandleSelectModifier(*this, Val, Argument, ArgumentLen, OutStr); 655 } else if (ModifierIs(Modifier, ModifierLen, "s")) { 656 HandleIntegerSModifier(Val, OutStr); 657 } else if (ModifierIs(Modifier, ModifierLen, "plural")) { 658 HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen, 659 OutStr); 660 } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) { 661 HandleOrdinalModifier(Val, OutStr); 662 } else { 663 assert(ModifierLen == 0 && "Unknown integer modifier"); 664 llvm::raw_svector_ostream(OutStr) << Val; 665 } 666 break; 667 } 668 // ---- NAMES and TYPES ---- 669 case DiagnosticsEngine::ak_identifierinfo: { 670 const IdentifierInfo *II = getArgIdentifier(ArgNo); 671 assert(ModifierLen == 0 && "No modifiers for strings yet"); 672 673 // Don't crash if get passed a null pointer by accident. 674 if (!II) { 675 const char *S = "(null)"; 676 OutStr.append(S, S + strlen(S)); 677 continue; 678 } 679 680 llvm::raw_svector_ostream(OutStr) << '\'' << II->getName() << '\''; 681 break; 682 } 683 case DiagnosticsEngine::ak_qualtype: 684 case DiagnosticsEngine::ak_declarationname: 685 case DiagnosticsEngine::ak_nameddecl: 686 case DiagnosticsEngine::ak_nestednamespec: 687 case DiagnosticsEngine::ak_declcontext: 688 getDiags()->ConvertArgToString(Kind, getRawArg(ArgNo), 689 Modifier, ModifierLen, 690 Argument, ArgumentLen, 691 FormattedArgs.data(), FormattedArgs.size(), 692 OutStr, QualTypeVals); 693 break; 694 } 695 696 // Remember this argument info for subsequent formatting operations. Turn 697 // std::strings into a null terminated string to make it be the same case as 698 // all the other ones. 699 if (Kind != DiagnosticsEngine::ak_std_string) 700 FormattedArgs.push_back(std::make_pair(Kind, getRawArg(ArgNo))); 701 else 702 FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_c_string, 703 (intptr_t)getArgStdStr(ArgNo).c_str())); 704 705 } 706} 707 708StoredDiagnostic::StoredDiagnostic() { } 709 710StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID, 711 StringRef Message) 712 : ID(ID), Level(Level), Loc(), Message(Message) { } 713 714StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, 715 const Diagnostic &Info) 716 : ID(Info.getID()), Level(Level) 717{ 718 assert((Info.getLocation().isInvalid() || Info.hasSourceManager()) && 719 "Valid source location without setting a source manager for diagnostic"); 720 if (Info.getLocation().isValid()) 721 Loc = FullSourceLoc(Info.getLocation(), Info.getSourceManager()); 722 llvm::SmallString<64> Message; 723 Info.FormatDiagnostic(Message); 724 this->Message.assign(Message.begin(), Message.end()); 725 726 Ranges.reserve(Info.getNumRanges()); 727 for (unsigned I = 0, N = Info.getNumRanges(); I != N; ++I) 728 Ranges.push_back(Info.getRange(I)); 729 730 FixIts.reserve(Info.getNumFixItHints()); 731 for (unsigned I = 0, N = Info.getNumFixItHints(); I != N; ++I) 732 FixIts.push_back(Info.getFixItHint(I)); 733} 734 735StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID, 736 StringRef Message, FullSourceLoc Loc, 737 ArrayRef<CharSourceRange> Ranges, 738 ArrayRef<FixItHint> Fixits) 739 : ID(ID), Level(Level), Loc(Loc), Message(Message) 740{ 741 this->Ranges.assign(Ranges.begin(), Ranges.end()); 742 this->FixIts.assign(FixIts.begin(), FixIts.end()); 743} 744 745StoredDiagnostic::~StoredDiagnostic() { } 746 747/// IncludeInDiagnosticCounts - This method (whose default implementation 748/// returns true) indicates whether the diagnostics handled by this 749/// DiagnosticConsumer should be included in the number of diagnostics 750/// reported by DiagnosticsEngine. 751bool DiagnosticConsumer::IncludeInDiagnosticCounts() const { return true; } 752 753PartialDiagnostic::StorageAllocator::StorageAllocator() { 754 for (unsigned I = 0; I != NumCached; ++I) 755 FreeList[I] = Cached + I; 756 NumFreeListEntries = NumCached; 757} 758 759PartialDiagnostic::StorageAllocator::~StorageAllocator() { 760 // Don't assert if we are in a CrashRecovery context, as this 761 // invariant may be invalidated during a crash. 762 assert((NumFreeListEntries == NumCached || llvm::CrashRecoveryContext::isRecoveringFromCrash()) && "A partial is on the lamb"); 763} 764