Diagnostic.cpp revision 09ea68d17bc0fc0b16d287ad4d3f61fe7def4f17
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 DiagnosticMappingInfo MappingInfo = DiagnosticMappingInfo::MakeInfo( 176 Map, /*IsUser=*/true, isPragma); 177 178 // Common case; setting all the diagnostics of a group in one place. 179 if (Loc.isInvalid() || Loc == LastStateChangePos) { 180 GetCurDiagState()->setMappingInfo(Diag, MappingInfo); 181 return; 182 } 183 184 // Another common case; modifying diagnostic state in a source location 185 // after the previous one. 186 if ((Loc.isValid() && LastStateChangePos.isInvalid()) || 187 LastStateChangePos.isBeforeInTranslationUnitThan(Loc)) { 188 // A diagnostic pragma occurred, create a new DiagState initialized with 189 // the current one and a new DiagStatePoint to record at which location 190 // the new state became active. 191 DiagStates.push_back(*GetCurDiagState()); 192 PushDiagStatePoint(&DiagStates.back(), Loc); 193 GetCurDiagState()->setMappingInfo(Diag, MappingInfo); 194 return; 195 } 196 197 // We allow setting the diagnostic state in random source order for 198 // completeness but it should not be actually happening in normal practice. 199 200 DiagStatePointsTy::iterator Pos = GetDiagStatePointForLoc(Loc); 201 assert(Pos != DiagStatePoints.end()); 202 203 // Update all diagnostic states that are active after the given location. 204 for (DiagStatePointsTy::iterator 205 I = Pos+1, E = DiagStatePoints.end(); I != E; ++I) { 206 GetCurDiagState()->setMappingInfo(Diag, MappingInfo); 207 } 208 209 // If the location corresponds to an existing point, just update its state. 210 if (Pos->Loc == Loc) { 211 GetCurDiagState()->setMappingInfo(Diag, MappingInfo); 212 return; 213 } 214 215 // Create a new state/point and fit it into the vector of DiagStatePoints 216 // so that the vector is always ordered according to location. 217 Pos->Loc.isBeforeInTranslationUnitThan(Loc); 218 DiagStates.push_back(*Pos->State); 219 DiagState *NewState = &DiagStates.back(); 220 GetCurDiagState()->setMappingInfo(Diag, MappingInfo); 221 DiagStatePoints.insert(Pos+1, DiagStatePoint(NewState, 222 FullSourceLoc(Loc, *SourceMgr))); 223} 224 225bool DiagnosticsEngine::setDiagnosticGroupWarningAsError(StringRef Group, 226 bool Enabled) { 227 diag::Mapping Map = Enabled ? diag::MAP_ERROR : diag::MAP_WARNING_NO_WERROR; 228 return setDiagnosticGroupMapping(Group, Map); 229} 230 231bool DiagnosticsEngine::setDiagnosticGroupErrorAsFatal(StringRef Group, 232 bool Enabled) { 233 diag::Mapping Map = Enabled ? diag::MAP_FATAL : diag::MAP_ERROR_NO_WFATAL; 234 return setDiagnosticGroupMapping(Group, Map); 235} 236 237void DiagnosticsEngine::Report(const StoredDiagnostic &storedDiag) { 238 assert(CurDiagID == ~0U && "Multiple diagnostics in flight at once!"); 239 240 CurDiagLoc = storedDiag.getLocation(); 241 CurDiagID = storedDiag.getID(); 242 NumDiagArgs = 0; 243 244 NumDiagRanges = storedDiag.range_size(); 245 assert(NumDiagRanges < sizeof(DiagRanges)/sizeof(DiagRanges[0]) && 246 "Too many arguments to diagnostic!"); 247 unsigned i = 0; 248 for (StoredDiagnostic::range_iterator 249 RI = storedDiag.range_begin(), 250 RE = storedDiag.range_end(); RI != RE; ++RI) 251 DiagRanges[i++] = *RI; 252 253 NumFixItHints = storedDiag.fixit_size(); 254 assert(NumFixItHints < DiagnosticsEngine::MaxFixItHints && 255 "Too many fix-it hints!"); 256 i = 0; 257 for (StoredDiagnostic::fixit_iterator 258 FI = storedDiag.fixit_begin(), 259 FE = storedDiag.fixit_end(); FI != FE; ++FI) 260 FixItHints[i++] = *FI; 261 262 assert(Client && "DiagnosticConsumer not set!"); 263 Level DiagLevel = storedDiag.getLevel(); 264 Diagnostic Info(this, storedDiag.getMessage()); 265 Client->HandleDiagnostic(DiagLevel, Info); 266 if (Client->IncludeInDiagnosticCounts()) { 267 if (DiagLevel == DiagnosticsEngine::Warning) 268 ++NumWarnings; 269 } 270 271 CurDiagID = ~0U; 272} 273 274void DiagnosticBuilder::FlushCounts() { 275 DiagObj->NumDiagArgs = NumArgs; 276 DiagObj->NumDiagRanges = NumRanges; 277 DiagObj->NumFixItHints = NumFixItHints; 278} 279 280bool DiagnosticBuilder::Emit() { 281 // If DiagObj is null, then its soul was stolen by the copy ctor 282 // or the user called Emit(). 283 if (DiagObj == 0) return false; 284 285 // When emitting diagnostics, we set the final argument count into 286 // the DiagnosticsEngine object. 287 FlushCounts(); 288 289 // Process the diagnostic, sending the accumulated information to the 290 // DiagnosticConsumer. 291 bool Emitted = DiagObj->ProcessDiag(); 292 293 // Clear out the current diagnostic object. 294 unsigned DiagID = DiagObj->CurDiagID; 295 DiagObj->Clear(); 296 297 // If there was a delayed diagnostic, emit it now. 298 if (DiagObj->DelayedDiagID && DiagObj->DelayedDiagID != DiagID) 299 DiagObj->ReportDelayed(); 300 301 // This diagnostic is dead. 302 DiagObj = 0; 303 304 return Emitted; 305} 306 307 308DiagnosticConsumer::~DiagnosticConsumer() {} 309 310void DiagnosticConsumer::HandleDiagnostic(DiagnosticsEngine::Level DiagLevel, 311 const Diagnostic &Info) { 312 if (!IncludeInDiagnosticCounts()) 313 return; 314 315 if (DiagLevel == DiagnosticsEngine::Warning) 316 ++NumWarnings; 317 else if (DiagLevel >= DiagnosticsEngine::Error) 318 ++NumErrors; 319} 320 321/// ModifierIs - Return true if the specified modifier matches specified string. 322template <std::size_t StrLen> 323static bool ModifierIs(const char *Modifier, unsigned ModifierLen, 324 const char (&Str)[StrLen]) { 325 return StrLen-1 == ModifierLen && !memcmp(Modifier, Str, StrLen-1); 326} 327 328/// ScanForward - Scans forward, looking for the given character, skipping 329/// nested clauses and escaped characters. 330static const char *ScanFormat(const char *I, const char *E, char Target) { 331 unsigned Depth = 0; 332 333 for ( ; I != E; ++I) { 334 if (Depth == 0 && *I == Target) return I; 335 if (Depth != 0 && *I == '}') Depth--; 336 337 if (*I == '%') { 338 I++; 339 if (I == E) break; 340 341 // Escaped characters get implicitly skipped here. 342 343 // Format specifier. 344 if (!isdigit(*I) && !ispunct(*I)) { 345 for (I++; I != E && !isdigit(*I) && *I != '{'; I++) ; 346 if (I == E) break; 347 if (*I == '{') 348 Depth++; 349 } 350 } 351 } 352 return E; 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(const Diagnostic &DInfo, unsigned ValNo, 361 const char *Argument, unsigned ArgumentLen, 362 SmallVectorImpl<char> &OutStr) { 363 const char *ArgumentEnd = Argument+ArgumentLen; 364 365 // Skip over 'ValNo' |'s. 366 while (ValNo) { 367 const char *NextVal = ScanFormat(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 = ScanFormat(Argument, ArgumentEnd, '|'); 376 377 // Recursively format the result of the select clause into the output string. 378 DInfo.FormatDiagnostic(Argument, EndPtr, OutStr); 379} 380 381/// HandleIntegerSModifier - Handle the integer 's' modifier. This adds the 382/// letter 's' to the string if the value is not 1. This is used in cases like 383/// this: "you idiot, you have %4 parameter%s4!". 384static void HandleIntegerSModifier(unsigned ValNo, 385 SmallVectorImpl<char> &OutStr) { 386 if (ValNo != 1) 387 OutStr.push_back('s'); 388} 389 390/// HandleOrdinalModifier - Handle the integer 'ord' modifier. This 391/// prints the ordinal form of the given integer, with 1 corresponding 392/// to the first ordinal. Currently this is hard-coded to use the 393/// English form. 394static void HandleOrdinalModifier(unsigned ValNo, 395 SmallVectorImpl<char> &OutStr) { 396 assert(ValNo != 0 && "ValNo must be strictly positive!"); 397 398 llvm::raw_svector_ostream Out(OutStr); 399 400 // We could use text forms for the first N ordinals, but the numeric 401 // forms are actually nicer in diagnostics because they stand out. 402 Out << ValNo; 403 404 // It is critically important that we do this perfectly for 405 // user-written sequences with over 100 elements. 406 switch (ValNo % 100) { 407 case 11: 408 case 12: 409 case 13: 410 Out << "th"; return; 411 default: 412 switch (ValNo % 10) { 413 case 1: Out << "st"; return; 414 case 2: Out << "nd"; return; 415 case 3: Out << "rd"; return; 416 default: Out << "th"; return; 417 } 418 } 419} 420 421 422/// PluralNumber - Parse an unsigned integer and advance Start. 423static unsigned PluralNumber(const char *&Start, const char *End) { 424 // Programming 101: Parse a decimal number :-) 425 unsigned Val = 0; 426 while (Start != End && *Start >= '0' && *Start <= '9') { 427 Val *= 10; 428 Val += *Start - '0'; 429 ++Start; 430 } 431 return Val; 432} 433 434/// TestPluralRange - Test if Val is in the parsed range. Modifies Start. 435static bool TestPluralRange(unsigned Val, const char *&Start, const char *End) { 436 if (*Start != '[') { 437 unsigned Ref = PluralNumber(Start, End); 438 return Ref == Val; 439 } 440 441 ++Start; 442 unsigned Low = PluralNumber(Start, End); 443 assert(*Start == ',' && "Bad plural expression syntax: expected ,"); 444 ++Start; 445 unsigned High = PluralNumber(Start, End); 446 assert(*Start == ']' && "Bad plural expression syntax: expected )"); 447 ++Start; 448 return Low <= Val && Val <= High; 449} 450 451/// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier. 452static bool EvalPluralExpr(unsigned ValNo, const char *Start, const char *End) { 453 // Empty condition? 454 if (*Start == ':') 455 return true; 456 457 while (1) { 458 char C = *Start; 459 if (C == '%') { 460 // Modulo expression 461 ++Start; 462 unsigned Arg = PluralNumber(Start, End); 463 assert(*Start == '=' && "Bad plural expression syntax: expected ="); 464 ++Start; 465 unsigned ValMod = ValNo % Arg; 466 if (TestPluralRange(ValMod, Start, End)) 467 return true; 468 } else { 469 assert((C == '[' || (C >= '0' && C <= '9')) && 470 "Bad plural expression syntax: unexpected character"); 471 // Range expression 472 if (TestPluralRange(ValNo, Start, End)) 473 return true; 474 } 475 476 // Scan for next or-expr part. 477 Start = std::find(Start, End, ','); 478 if (Start == End) 479 break; 480 ++Start; 481 } 482 return false; 483} 484 485/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used 486/// for complex plural forms, or in languages where all plurals are complex. 487/// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are 488/// conditions that are tested in order, the form corresponding to the first 489/// that applies being emitted. The empty condition is always true, making the 490/// last form a default case. 491/// Conditions are simple boolean expressions, where n is the number argument. 492/// Here are the rules. 493/// condition := expression | empty 494/// empty := -> always true 495/// expression := numeric [',' expression] -> logical or 496/// numeric := range -> true if n in range 497/// | '%' number '=' range -> true if n % number in range 498/// range := number 499/// | '[' number ',' number ']' -> ranges are inclusive both ends 500/// 501/// Here are some examples from the GNU gettext manual written in this form: 502/// English: 503/// {1:form0|:form1} 504/// Latvian: 505/// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0} 506/// Gaeilge: 507/// {1:form0|2:form1|:form2} 508/// Romanian: 509/// {1:form0|0,%100=[1,19]:form1|:form2} 510/// Lithuanian: 511/// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1} 512/// Russian (requires repeated form): 513/// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2} 514/// Slovak 515/// {1:form0|[2,4]:form1|:form2} 516/// Polish (requires repeated form): 517/// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2} 518static void HandlePluralModifier(const Diagnostic &DInfo, unsigned ValNo, 519 const char *Argument, unsigned ArgumentLen, 520 SmallVectorImpl<char> &OutStr) { 521 const char *ArgumentEnd = Argument + ArgumentLen; 522 while (1) { 523 assert(Argument < ArgumentEnd && "Plural expression didn't match."); 524 const char *ExprEnd = Argument; 525 while (*ExprEnd != ':') { 526 assert(ExprEnd != ArgumentEnd && "Plural missing expression end"); 527 ++ExprEnd; 528 } 529 if (EvalPluralExpr(ValNo, Argument, ExprEnd)) { 530 Argument = ExprEnd + 1; 531 ExprEnd = ScanFormat(Argument, ArgumentEnd, '|'); 532 533 // Recursively format the result of the plural clause into the 534 // output string. 535 DInfo.FormatDiagnostic(Argument, ExprEnd, OutStr); 536 return; 537 } 538 Argument = ScanFormat(Argument, ArgumentEnd - 1, '|') + 1; 539 } 540} 541 542 543/// FormatDiagnostic - Format this diagnostic into a string, substituting the 544/// formal arguments into the %0 slots. The result is appended onto the Str 545/// array. 546void Diagnostic:: 547FormatDiagnostic(SmallVectorImpl<char> &OutStr) const { 548 if (!StoredDiagMessage.empty()) { 549 OutStr.append(StoredDiagMessage.begin(), StoredDiagMessage.end()); 550 return; 551 } 552 553 StringRef Diag = 554 getDiags()->getDiagnosticIDs()->getDescription(getID()); 555 556 FormatDiagnostic(Diag.begin(), Diag.end(), OutStr); 557} 558 559void Diagnostic:: 560FormatDiagnostic(const char *DiagStr, const char *DiagEnd, 561 SmallVectorImpl<char> &OutStr) const { 562 563 /// FormattedArgs - Keep track of all of the arguments formatted by 564 /// ConvertArgToString and pass them into subsequent calls to 565 /// ConvertArgToString, allowing the implementation to avoid redundancies in 566 /// obvious cases. 567 SmallVector<DiagnosticsEngine::ArgumentValue, 8> FormattedArgs; 568 569 /// QualTypeVals - Pass a vector of arrays so that QualType names can be 570 /// compared to see if more information is needed to be printed. 571 SmallVector<intptr_t, 2> QualTypeVals; 572 for (unsigned i = 0, e = getNumArgs(); i < e; ++i) 573 if (getArgKind(i) == DiagnosticsEngine::ak_qualtype) 574 QualTypeVals.push_back(getRawArg(i)); 575 576 while (DiagStr != DiagEnd) { 577 if (DiagStr[0] != '%') { 578 // Append non-%0 substrings to Str if we have one. 579 const char *StrEnd = std::find(DiagStr, DiagEnd, '%'); 580 OutStr.append(DiagStr, StrEnd); 581 DiagStr = StrEnd; 582 continue; 583 } else if (ispunct(DiagStr[1])) { 584 OutStr.push_back(DiagStr[1]); // %% -> %. 585 DiagStr += 2; 586 continue; 587 } 588 589 // Skip the %. 590 ++DiagStr; 591 592 // This must be a placeholder for a diagnostic argument. The format for a 593 // placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0". 594 // The digit is a number from 0-9 indicating which argument this comes from. 595 // The modifier is a string of digits from the set [-a-z]+, arguments is a 596 // brace enclosed string. 597 const char *Modifier = 0, *Argument = 0; 598 unsigned ModifierLen = 0, ArgumentLen = 0; 599 600 // Check to see if we have a modifier. If so eat it. 601 if (!isdigit(DiagStr[0])) { 602 Modifier = DiagStr; 603 while (DiagStr[0] == '-' || 604 (DiagStr[0] >= 'a' && DiagStr[0] <= 'z')) 605 ++DiagStr; 606 ModifierLen = DiagStr-Modifier; 607 608 // If we have an argument, get it next. 609 if (DiagStr[0] == '{') { 610 ++DiagStr; // Skip {. 611 Argument = DiagStr; 612 613 DiagStr = ScanFormat(DiagStr, DiagEnd, '}'); 614 assert(DiagStr != DiagEnd && "Mismatched {}'s in diagnostic string!"); 615 ArgumentLen = DiagStr-Argument; 616 ++DiagStr; // Skip }. 617 } 618 } 619 620 assert(isdigit(*DiagStr) && "Invalid format for argument in diagnostic"); 621 unsigned ArgNo = *DiagStr++ - '0'; 622 623 DiagnosticsEngine::ArgumentKind Kind = getArgKind(ArgNo); 624 625 switch (Kind) { 626 // ---- STRINGS ---- 627 case DiagnosticsEngine::ak_std_string: { 628 const std::string &S = getArgStdStr(ArgNo); 629 assert(ModifierLen == 0 && "No modifiers for strings yet"); 630 OutStr.append(S.begin(), S.end()); 631 break; 632 } 633 case DiagnosticsEngine::ak_c_string: { 634 const char *S = getArgCStr(ArgNo); 635 assert(ModifierLen == 0 && "No modifiers for strings yet"); 636 637 // Don't crash if get passed a null pointer by accident. 638 if (!S) 639 S = "(null)"; 640 641 OutStr.append(S, S + strlen(S)); 642 break; 643 } 644 // ---- INTEGERS ---- 645 case DiagnosticsEngine::ak_sint: { 646 int Val = getArgSInt(ArgNo); 647 648 if (ModifierIs(Modifier, ModifierLen, "select")) { 649 HandleSelectModifier(*this, (unsigned)Val, Argument, ArgumentLen, 650 OutStr); 651 } else if (ModifierIs(Modifier, ModifierLen, "s")) { 652 HandleIntegerSModifier(Val, OutStr); 653 } else if (ModifierIs(Modifier, ModifierLen, "plural")) { 654 HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen, 655 OutStr); 656 } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) { 657 HandleOrdinalModifier((unsigned)Val, OutStr); 658 } else { 659 assert(ModifierLen == 0 && "Unknown integer modifier"); 660 llvm::raw_svector_ostream(OutStr) << Val; 661 } 662 break; 663 } 664 case DiagnosticsEngine::ak_uint: { 665 unsigned Val = getArgUInt(ArgNo); 666 667 if (ModifierIs(Modifier, ModifierLen, "select")) { 668 HandleSelectModifier(*this, Val, Argument, ArgumentLen, OutStr); 669 } else if (ModifierIs(Modifier, ModifierLen, "s")) { 670 HandleIntegerSModifier(Val, OutStr); 671 } else if (ModifierIs(Modifier, ModifierLen, "plural")) { 672 HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen, 673 OutStr); 674 } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) { 675 HandleOrdinalModifier(Val, OutStr); 676 } else { 677 assert(ModifierLen == 0 && "Unknown integer modifier"); 678 llvm::raw_svector_ostream(OutStr) << Val; 679 } 680 break; 681 } 682 // ---- NAMES and TYPES ---- 683 case DiagnosticsEngine::ak_identifierinfo: { 684 const IdentifierInfo *II = getArgIdentifier(ArgNo); 685 assert(ModifierLen == 0 && "No modifiers for strings yet"); 686 687 // Don't crash if get passed a null pointer by accident. 688 if (!II) { 689 const char *S = "(null)"; 690 OutStr.append(S, S + strlen(S)); 691 continue; 692 } 693 694 llvm::raw_svector_ostream(OutStr) << '\'' << II->getName() << '\''; 695 break; 696 } 697 case DiagnosticsEngine::ak_qualtype: 698 case DiagnosticsEngine::ak_declarationname: 699 case DiagnosticsEngine::ak_nameddecl: 700 case DiagnosticsEngine::ak_nestednamespec: 701 case DiagnosticsEngine::ak_declcontext: 702 getDiags()->ConvertArgToString(Kind, getRawArg(ArgNo), 703 Modifier, ModifierLen, 704 Argument, ArgumentLen, 705 FormattedArgs.data(), FormattedArgs.size(), 706 OutStr, QualTypeVals); 707 break; 708 } 709 710 // Remember this argument info for subsequent formatting operations. Turn 711 // std::strings into a null terminated string to make it be the same case as 712 // all the other ones. 713 if (Kind != DiagnosticsEngine::ak_std_string) 714 FormattedArgs.push_back(std::make_pair(Kind, getRawArg(ArgNo))); 715 else 716 FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_c_string, 717 (intptr_t)getArgStdStr(ArgNo).c_str())); 718 719 } 720} 721 722StoredDiagnostic::StoredDiagnostic() { } 723 724StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID, 725 StringRef Message) 726 : ID(ID), Level(Level), Loc(), Message(Message) { } 727 728StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, 729 const Diagnostic &Info) 730 : ID(Info.getID()), Level(Level) 731{ 732 assert((Info.getLocation().isInvalid() || Info.hasSourceManager()) && 733 "Valid source location without setting a source manager for diagnostic"); 734 if (Info.getLocation().isValid()) 735 Loc = FullSourceLoc(Info.getLocation(), Info.getSourceManager()); 736 llvm::SmallString<64> Message; 737 Info.FormatDiagnostic(Message); 738 this->Message.assign(Message.begin(), Message.end()); 739 740 Ranges.reserve(Info.getNumRanges()); 741 for (unsigned I = 0, N = Info.getNumRanges(); I != N; ++I) 742 Ranges.push_back(Info.getRange(I)); 743 744 FixIts.reserve(Info.getNumFixItHints()); 745 for (unsigned I = 0, N = Info.getNumFixItHints(); I != N; ++I) 746 FixIts.push_back(Info.getFixItHint(I)); 747} 748 749StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID, 750 StringRef Message, FullSourceLoc Loc, 751 ArrayRef<CharSourceRange> Ranges, 752 ArrayRef<FixItHint> Fixits) 753 : ID(ID), Level(Level), Loc(Loc), Message(Message) 754{ 755 this->Ranges.assign(Ranges.begin(), Ranges.end()); 756 this->FixIts.assign(FixIts.begin(), FixIts.end()); 757} 758 759StoredDiagnostic::~StoredDiagnostic() { } 760 761/// IncludeInDiagnosticCounts - This method (whose default implementation 762/// returns true) indicates whether the diagnostics handled by this 763/// DiagnosticConsumer should be included in the number of diagnostics 764/// reported by DiagnosticsEngine. 765bool DiagnosticConsumer::IncludeInDiagnosticCounts() const { return true; } 766 767PartialDiagnostic::StorageAllocator::StorageAllocator() { 768 for (unsigned I = 0; I != NumCached; ++I) 769 FreeList[I] = Cached + I; 770 NumFreeListEntries = NumCached; 771} 772 773PartialDiagnostic::StorageAllocator::~StorageAllocator() { 774 // Don't assert if we are in a CrashRecovery context, as this 775 // invariant may be invalidated during a crash. 776 assert((NumFreeListEntries == NumCached || llvm::CrashRecoveryContext::isRecoveringFromCrash()) && "A partial is on the lamb"); 777} 778