Diagnostic.cpp revision c0a575f9b791a25c94b1c3c832dd73ec564646bb
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===--- Diagnostic.cpp - C Language Family Diagnostic Handling -----------===// 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The LLVM Compiler Infrastructure 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This file is distributed under the University of Illinois Open Source 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// License. See LICENSE.TXT for details. 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===----------------------------------------------------------------------===// 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// This file implements the Diagnostic-related interfaces. 112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===----------------------------------------------------------------------===// 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "clang/Basic/Diagnostic.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "clang/Basic/IdentifierTable.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "clang/Basic/PartialDiagnostic.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "llvm/ADT/SmallVector.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "llvm/Support/raw_ostream.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "llvm/Support/CrashRecoveryContext.h" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using namespace clang; 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void DummyArgToStringFn(Diagnostic::ArgumentKind AK, intptr_t QT, 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *Modifier, unsigned ML, 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *Argument, unsigned ArgLen, 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Diagnostic::ArgumentValue *PrevArgs, 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned NumPrevArgs, 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SmallVectorImpl<char> &Output, 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void *Cookie, 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SmallVectorImpl<intptr_t> &QualTypeVals) { 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *Str = "<can't format argument>"; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Output.append(Str, Str+strlen(Str)); 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Diagnostic::Diagnostic(const llvm::IntrusiveRefCntPtr<DiagnosticIDs> &diags, 37c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DiagnosticClient *client, bool ShouldOwnClient) 38c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) : Diags(diags), Client(client), OwnsDiagClient(ShouldOwnClient), 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceMgr(0) { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ArgToStringFn = DummyArgToStringFn; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ArgToStringCookie = 0; 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AllExtensionsSilenced = 0; 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IgnoreAllWarnings = false; 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WarningsAsErrors = false; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ErrorsAsFatal = false; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SuppressSystemWarnings = false; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SuppressAllDiagnostics = false; 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ShowOverloads = Ovl_All; 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ExtBehavior = Ext_Ignore; 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ErrorLimit = 0; 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) TemplateBacktraceLimit = 0; 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Reset(); 562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)Diagnostic::~Diagnostic() { 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (OwnsDiagClient) 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) delete Client; 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void Diagnostic::setClient(DiagnosticClient *client, bool ShouldOwnClient) { 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (OwnsDiagClient && Client) 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) delete Client; 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 67c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) Client = client; 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) OwnsDiagClient = ShouldOwnClient; 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Diagnostic::pushMappings(SourceLocation Loc) { 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DiagStateOnPushStack.push_back(GetCurDiagState()); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool Diagnostic::popMappings(SourceLocation Loc) { 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (DiagStateOnPushStack.empty()) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 78c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 79c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (DiagStateOnPushStack.back() != GetCurDiagState()) { 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // State changed at some point between push/pop. 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PushDiagStatePoint(DiagStateOnPushStack.back(), Loc); 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DiagStateOnPushStack.pop_back(); 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return true; 852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Diagnostic::Reset() { 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ErrorOccurred = false; 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FatalErrorOccurred = false; 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UnrecoverableErrorOccurred = false; 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NumWarnings = 0; 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NumErrors = 0; 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NumErrorsSuppressed = 0; 95c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) TrapNumErrorsOccurred = 0; 96c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) TrapNumUnrecoverableErrorsOccurred = 0; 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CurDiagID = ~0U; 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Set LastDiagLevel to an "unset" state. If we set it to 'Ignored', notes 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // using a Diagnostic associated to a translation unit that follow 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // diagnostics from a Diagnostic associated to anoter t.u. will not be 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // displayed. 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LastDiagLevel = (DiagnosticIDs::Level)-1; 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DelayedDiagID = 0; 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Clear state related to #pragma diagnostic. 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DiagStates.clear(); 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DiagStatePoints.clear(); 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DiagStateOnPushStack.clear(); 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Create a DiagState and DiagStatePoint representing diagnostic changes 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // through command-line. 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DiagStates.push_back(DiagState()); 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PushDiagStatePoint(&DiagStates.back(), SourceLocation()); 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Diagnostic::SetDelayedDiagnostic(unsigned DiagID, StringRef Arg1, 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) StringRef Arg2) { 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (DelayedDiagID) 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DelayedDiagID = DiagID; 1232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DelayedDiagArg1 = Arg1.str(); 1242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DelayedDiagArg2 = Arg2.str(); 1252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void Diagnostic::ReportDelayed() { 1282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Report(DelayedDiagID) << DelayedDiagArg1 << DelayedDiagArg2; 1292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DelayedDiagID = 0; 1302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DelayedDiagArg1.clear(); 1312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DelayedDiagArg2.clear(); 132c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 1332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)Diagnostic::DiagStatePointsTy::iterator 1352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)Diagnostic::GetDiagStatePointForLoc(SourceLocation L) const { 1362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) assert(!DiagStatePoints.empty()); 1372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) assert(DiagStatePoints.front().Loc.isInvalid() && 1382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) "Should have created a DiagStatePoint for command-line"); 1392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FullSourceLoc Loc(L, *SourceMgr); 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (Loc.isInvalid()) 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return DiagStatePoints.end() - 1; 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DiagStatePointsTy::iterator Pos = DiagStatePoints.end(); 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FullSourceLoc LastStateChangePos = DiagStatePoints.back().Loc; 1462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (LastStateChangePos.isValid() && 1472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Loc.isBeforeInTranslationUnitThan(LastStateChangePos)) 1482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Pos = std::upper_bound(DiagStatePoints.begin(), DiagStatePoints.end(), 1492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DiagStatePoint(0, Loc)); 1502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) --Pos; 1512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return Pos; 1522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// \brief This allows the client to specify that certain 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// warnings are ignored. Notes can never be mapped, errors can only be 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// mapped to fatal, and WARNINGs and EXTENSIONs can be mapped arbitrarily. 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// \param The source location that this change of diagnostic state should 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// take affect. It can be null if we are setting the latest state. 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Diagnostic::setDiagnosticMapping(diag::kind Diag, diag::Mapping Map, 1612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SourceLocation L) { 1622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) assert(Diag < diag::DIAG_UPPER_LIMIT && 1632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) "Can only map builtin diagnostics"); 1642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) assert((Diags->isBuiltinWarningOrExtension(Diag) || 1652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) (Map == diag::MAP_FATAL || Map == diag::MAP_ERROR)) && 1662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) "Cannot map errors into warnings!"); 1672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) assert(!DiagStatePoints.empty()); 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isPragma = L.isValid(); 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FullSourceLoc Loc(L, *SourceMgr); 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FullSourceLoc LastStateChangePos = DiagStatePoints.back().Loc; 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Common case; setting all the diagnostics of a group in one place. 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (Loc.isInvalid() || Loc == LastStateChangePos) { 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) setDiagnosticMappingInternal(Diag, Map, GetCurDiagState(), true, isPragma); 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Another common case; modifying diagnostic state in a source location 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // after the previous one. 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if ((Loc.isValid() && LastStateChangePos.isInvalid()) || 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LastStateChangePos.isBeforeInTranslationUnitThan(Loc)) { 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // A diagnostic pragma occurred, create a new DiagState initialized with 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the current one and a new DiagStatePoint to record at which location 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the new state became active. 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DiagStates.push_back(*GetCurDiagState()); 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PushDiagStatePoint(&DiagStates.back(), Loc); 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) setDiagnosticMappingInternal(Diag, Map, GetCurDiagState(), true, isPragma); 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We allow setting the diagnostic state in random source order for 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // completeness but it should not be actually happening in normal practice. 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DiagStatePointsTy::iterator Pos = GetDiagStatePointForLoc(Loc); 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assert(Pos != DiagStatePoints.end()); 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Update all diagnostic states that are active after the given location. 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (DiagStatePointsTy::iterator 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) I = Pos+1, E = DiagStatePoints.end(); I != E; ++I) { 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) setDiagnosticMappingInternal(Diag, Map, I->State, true, isPragma); 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If the location corresponds to an existing point, just update its state. 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (Pos->Loc == Loc) { 206 setDiagnosticMappingInternal(Diag, Map, Pos->State, true, isPragma); 207 return; 208 } 209 210 // Create a new state/point and fit it into the vector of DiagStatePoints 211 // so that the vector is always ordered according to location. 212 Pos->Loc.isBeforeInTranslationUnitThan(Loc); 213 DiagStates.push_back(*Pos->State); 214 DiagState *NewState = &DiagStates.back(); 215 setDiagnosticMappingInternal(Diag, Map, NewState, true, isPragma); 216 DiagStatePoints.insert(Pos+1, DiagStatePoint(NewState, 217 FullSourceLoc(Loc, *SourceMgr))); 218} 219 220void Diagnostic::Report(const StoredDiagnostic &storedDiag) { 221 assert(CurDiagID == ~0U && "Multiple diagnostics in flight at once!"); 222 223 CurDiagLoc = storedDiag.getLocation(); 224 CurDiagID = storedDiag.getID(); 225 NumDiagArgs = 0; 226 227 NumDiagRanges = storedDiag.range_size(); 228 assert(NumDiagRanges < sizeof(DiagRanges)/sizeof(DiagRanges[0]) && 229 "Too many arguments to diagnostic!"); 230 unsigned i = 0; 231 for (StoredDiagnostic::range_iterator 232 RI = storedDiag.range_begin(), 233 RE = storedDiag.range_end(); RI != RE; ++RI) 234 DiagRanges[i++] = *RI; 235 236 NumFixItHints = storedDiag.fixit_size(); 237 assert(NumFixItHints < Diagnostic::MaxFixItHints && "Too many fix-it hints!"); 238 i = 0; 239 for (StoredDiagnostic::fixit_iterator 240 FI = storedDiag.fixit_begin(), 241 FE = storedDiag.fixit_end(); FI != FE; ++FI) 242 FixItHints[i++] = *FI; 243 244 assert(Client && "DiagnosticClient not set!"); 245 Level DiagLevel = storedDiag.getLevel(); 246 DiagnosticInfo Info(this, storedDiag.getMessage()); 247 Client->HandleDiagnostic(DiagLevel, Info); 248 if (Client->IncludeInDiagnosticCounts()) { 249 if (DiagLevel == Diagnostic::Warning) 250 ++NumWarnings; 251 } 252 253 CurDiagID = ~0U; 254} 255 256void DiagnosticBuilder::FlushCounts() { 257 DiagObj->NumDiagArgs = NumArgs; 258 DiagObj->NumDiagRanges = NumRanges; 259 DiagObj->NumFixItHints = NumFixItHints; 260} 261 262bool DiagnosticBuilder::Emit() { 263 // If DiagObj is null, then its soul was stolen by the copy ctor 264 // or the user called Emit(). 265 if (DiagObj == 0) return false; 266 267 // When emitting diagnostics, we set the final argument count into 268 // the Diagnostic object. 269 FlushCounts(); 270 271 // Process the diagnostic, sending the accumulated information to the 272 // DiagnosticClient. 273 bool Emitted = DiagObj->ProcessDiag(); 274 275 // Clear out the current diagnostic object. 276 unsigned DiagID = DiagObj->CurDiagID; 277 DiagObj->Clear(); 278 279 // If there was a delayed diagnostic, emit it now. 280 if (DiagObj->DelayedDiagID && DiagObj->DelayedDiagID != DiagID) 281 DiagObj->ReportDelayed(); 282 283 // This diagnostic is dead. 284 DiagObj = 0; 285 286 return Emitted; 287} 288 289 290DiagnosticClient::~DiagnosticClient() {} 291 292void DiagnosticClient::HandleDiagnostic(Diagnostic::Level DiagLevel, 293 const DiagnosticInfo &Info) { 294 if (!IncludeInDiagnosticCounts()) 295 return; 296 297 if (DiagLevel == Diagnostic::Warning) 298 ++NumWarnings; 299 else if (DiagLevel >= Diagnostic::Error) 300 ++NumErrors; 301} 302 303/// ModifierIs - Return true if the specified modifier matches specified string. 304template <std::size_t StrLen> 305static bool ModifierIs(const char *Modifier, unsigned ModifierLen, 306 const char (&Str)[StrLen]) { 307 return StrLen-1 == ModifierLen && !memcmp(Modifier, Str, StrLen-1); 308} 309 310/// ScanForward - Scans forward, looking for the given character, skipping 311/// nested clauses and escaped characters. 312static const char *ScanFormat(const char *I, const char *E, char Target) { 313 unsigned Depth = 0; 314 315 for ( ; I != E; ++I) { 316 if (Depth == 0 && *I == Target) return I; 317 if (Depth != 0 && *I == '}') Depth--; 318 319 if (*I == '%') { 320 I++; 321 if (I == E) break; 322 323 // Escaped characters get implicitly skipped here. 324 325 // Format specifier. 326 if (!isdigit(*I) && !ispunct(*I)) { 327 for (I++; I != E && !isdigit(*I) && *I != '{'; I++) ; 328 if (I == E) break; 329 if (*I == '{') 330 Depth++; 331 } 332 } 333 } 334 return E; 335} 336 337/// HandleSelectModifier - Handle the integer 'select' modifier. This is used 338/// like this: %select{foo|bar|baz}2. This means that the integer argument 339/// "%2" has a value from 0-2. If the value is 0, the diagnostic prints 'foo'. 340/// If the value is 1, it prints 'bar'. If it has the value 2, it prints 'baz'. 341/// This is very useful for certain classes of variant diagnostics. 342static void HandleSelectModifier(const DiagnosticInfo &DInfo, unsigned ValNo, 343 const char *Argument, unsigned ArgumentLen, 344 SmallVectorImpl<char> &OutStr) { 345 const char *ArgumentEnd = Argument+ArgumentLen; 346 347 // Skip over 'ValNo' |'s. 348 while (ValNo) { 349 const char *NextVal = ScanFormat(Argument, ArgumentEnd, '|'); 350 assert(NextVal != ArgumentEnd && "Value for integer select modifier was" 351 " larger than the number of options in the diagnostic string!"); 352 Argument = NextVal+1; // Skip this string. 353 --ValNo; 354 } 355 356 // Get the end of the value. This is either the } or the |. 357 const char *EndPtr = ScanFormat(Argument, ArgumentEnd, '|'); 358 359 // Recursively format the result of the select clause into the output string. 360 DInfo.FormatDiagnostic(Argument, EndPtr, OutStr); 361} 362 363/// HandleIntegerSModifier - Handle the integer 's' modifier. This adds the 364/// letter 's' to the string if the value is not 1. This is used in cases like 365/// this: "you idiot, you have %4 parameter%s4!". 366static void HandleIntegerSModifier(unsigned ValNo, 367 SmallVectorImpl<char> &OutStr) { 368 if (ValNo != 1) 369 OutStr.push_back('s'); 370} 371 372/// HandleOrdinalModifier - Handle the integer 'ord' modifier. This 373/// prints the ordinal form of the given integer, with 1 corresponding 374/// to the first ordinal. Currently this is hard-coded to use the 375/// English form. 376static void HandleOrdinalModifier(unsigned ValNo, 377 SmallVectorImpl<char> &OutStr) { 378 assert(ValNo != 0 && "ValNo must be strictly positive!"); 379 380 llvm::raw_svector_ostream Out(OutStr); 381 382 // We could use text forms for the first N ordinals, but the numeric 383 // forms are actually nicer in diagnostics because they stand out. 384 Out << ValNo; 385 386 // It is critically important that we do this perfectly for 387 // user-written sequences with over 100 elements. 388 switch (ValNo % 100) { 389 case 11: 390 case 12: 391 case 13: 392 Out << "th"; return; 393 default: 394 switch (ValNo % 10) { 395 case 1: Out << "st"; return; 396 case 2: Out << "nd"; return; 397 case 3: Out << "rd"; return; 398 default: Out << "th"; return; 399 } 400 } 401} 402 403 404/// PluralNumber - Parse an unsigned integer and advance Start. 405static unsigned PluralNumber(const char *&Start, const char *End) { 406 // Programming 101: Parse a decimal number :-) 407 unsigned Val = 0; 408 while (Start != End && *Start >= '0' && *Start <= '9') { 409 Val *= 10; 410 Val += *Start - '0'; 411 ++Start; 412 } 413 return Val; 414} 415 416/// TestPluralRange - Test if Val is in the parsed range. Modifies Start. 417static bool TestPluralRange(unsigned Val, const char *&Start, const char *End) { 418 if (*Start != '[') { 419 unsigned Ref = PluralNumber(Start, End); 420 return Ref == Val; 421 } 422 423 ++Start; 424 unsigned Low = PluralNumber(Start, End); 425 assert(*Start == ',' && "Bad plural expression syntax: expected ,"); 426 ++Start; 427 unsigned High = PluralNumber(Start, End); 428 assert(*Start == ']' && "Bad plural expression syntax: expected )"); 429 ++Start; 430 return Low <= Val && Val <= High; 431} 432 433/// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier. 434static bool EvalPluralExpr(unsigned ValNo, const char *Start, const char *End) { 435 // Empty condition? 436 if (*Start == ':') 437 return true; 438 439 while (1) { 440 char C = *Start; 441 if (C == '%') { 442 // Modulo expression 443 ++Start; 444 unsigned Arg = PluralNumber(Start, End); 445 assert(*Start == '=' && "Bad plural expression syntax: expected ="); 446 ++Start; 447 unsigned ValMod = ValNo % Arg; 448 if (TestPluralRange(ValMod, Start, End)) 449 return true; 450 } else { 451 assert((C == '[' || (C >= '0' && C <= '9')) && 452 "Bad plural expression syntax: unexpected character"); 453 // Range expression 454 if (TestPluralRange(ValNo, Start, End)) 455 return true; 456 } 457 458 // Scan for next or-expr part. 459 Start = std::find(Start, End, ','); 460 if (Start == End) 461 break; 462 ++Start; 463 } 464 return false; 465} 466 467/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used 468/// for complex plural forms, or in languages where all plurals are complex. 469/// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are 470/// conditions that are tested in order, the form corresponding to the first 471/// that applies being emitted. The empty condition is always true, making the 472/// last form a default case. 473/// Conditions are simple boolean expressions, where n is the number argument. 474/// Here are the rules. 475/// condition := expression | empty 476/// empty := -> always true 477/// expression := numeric [',' expression] -> logical or 478/// numeric := range -> true if n in range 479/// | '%' number '=' range -> true if n % number in range 480/// range := number 481/// | '[' number ',' number ']' -> ranges are inclusive both ends 482/// 483/// Here are some examples from the GNU gettext manual written in this form: 484/// English: 485/// {1:form0|:form1} 486/// Latvian: 487/// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0} 488/// Gaeilge: 489/// {1:form0|2:form1|:form2} 490/// Romanian: 491/// {1:form0|0,%100=[1,19]:form1|:form2} 492/// Lithuanian: 493/// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1} 494/// Russian (requires repeated form): 495/// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2} 496/// Slovak 497/// {1:form0|[2,4]:form1|:form2} 498/// Polish (requires repeated form): 499/// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2} 500static void HandlePluralModifier(const DiagnosticInfo &DInfo, unsigned ValNo, 501 const char *Argument, unsigned ArgumentLen, 502 SmallVectorImpl<char> &OutStr) { 503 const char *ArgumentEnd = Argument + ArgumentLen; 504 while (1) { 505 assert(Argument < ArgumentEnd && "Plural expression didn't match."); 506 const char *ExprEnd = Argument; 507 while (*ExprEnd != ':') { 508 assert(ExprEnd != ArgumentEnd && "Plural missing expression end"); 509 ++ExprEnd; 510 } 511 if (EvalPluralExpr(ValNo, Argument, ExprEnd)) { 512 Argument = ExprEnd + 1; 513 ExprEnd = ScanFormat(Argument, ArgumentEnd, '|'); 514 515 // Recursively format the result of the plural clause into the 516 // output string. 517 DInfo.FormatDiagnostic(Argument, ExprEnd, OutStr); 518 return; 519 } 520 Argument = ScanFormat(Argument, ArgumentEnd - 1, '|') + 1; 521 } 522} 523 524 525/// FormatDiagnostic - Format this diagnostic into a string, substituting the 526/// formal arguments into the %0 slots. The result is appended onto the Str 527/// array. 528void DiagnosticInfo:: 529FormatDiagnostic(SmallVectorImpl<char> &OutStr) const { 530 if (!StoredDiagMessage.empty()) { 531 OutStr.append(StoredDiagMessage.begin(), StoredDiagMessage.end()); 532 return; 533 } 534 535 StringRef Diag = 536 getDiags()->getDiagnosticIDs()->getDescription(getID()); 537 538 FormatDiagnostic(Diag.begin(), Diag.end(), OutStr); 539} 540 541void DiagnosticInfo:: 542FormatDiagnostic(const char *DiagStr, const char *DiagEnd, 543 SmallVectorImpl<char> &OutStr) const { 544 545 /// FormattedArgs - Keep track of all of the arguments formatted by 546 /// ConvertArgToString and pass them into subsequent calls to 547 /// ConvertArgToString, allowing the implementation to avoid redundancies in 548 /// obvious cases. 549 SmallVector<Diagnostic::ArgumentValue, 8> FormattedArgs; 550 551 /// QualTypeVals - Pass a vector of arrays so that QualType names can be 552 /// compared to see if more information is needed to be printed. 553 SmallVector<intptr_t, 2> QualTypeVals; 554 for (unsigned i = 0, e = getNumArgs(); i < e; ++i) 555 if (getArgKind(i) == Diagnostic::ak_qualtype) 556 QualTypeVals.push_back(getRawArg(i)); 557 558 while (DiagStr != DiagEnd) { 559 if (DiagStr[0] != '%') { 560 // Append non-%0 substrings to Str if we have one. 561 const char *StrEnd = std::find(DiagStr, DiagEnd, '%'); 562 OutStr.append(DiagStr, StrEnd); 563 DiagStr = StrEnd; 564 continue; 565 } else if (ispunct(DiagStr[1])) { 566 OutStr.push_back(DiagStr[1]); // %% -> %. 567 DiagStr += 2; 568 continue; 569 } 570 571 // Skip the %. 572 ++DiagStr; 573 574 // This must be a placeholder for a diagnostic argument. The format for a 575 // placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0". 576 // The digit is a number from 0-9 indicating which argument this comes from. 577 // The modifier is a string of digits from the set [-a-z]+, arguments is a 578 // brace enclosed string. 579 const char *Modifier = 0, *Argument = 0; 580 unsigned ModifierLen = 0, ArgumentLen = 0; 581 582 // Check to see if we have a modifier. If so eat it. 583 if (!isdigit(DiagStr[0])) { 584 Modifier = DiagStr; 585 while (DiagStr[0] == '-' || 586 (DiagStr[0] >= 'a' && DiagStr[0] <= 'z')) 587 ++DiagStr; 588 ModifierLen = DiagStr-Modifier; 589 590 // If we have an argument, get it next. 591 if (DiagStr[0] == '{') { 592 ++DiagStr; // Skip {. 593 Argument = DiagStr; 594 595 DiagStr = ScanFormat(DiagStr, DiagEnd, '}'); 596 assert(DiagStr != DiagEnd && "Mismatched {}'s in diagnostic string!"); 597 ArgumentLen = DiagStr-Argument; 598 ++DiagStr; // Skip }. 599 } 600 } 601 602 assert(isdigit(*DiagStr) && "Invalid format for argument in diagnostic"); 603 unsigned ArgNo = *DiagStr++ - '0'; 604 605 Diagnostic::ArgumentKind Kind = getArgKind(ArgNo); 606 607 switch (Kind) { 608 // ---- STRINGS ---- 609 case Diagnostic::ak_std_string: { 610 const std::string &S = getArgStdStr(ArgNo); 611 assert(ModifierLen == 0 && "No modifiers for strings yet"); 612 OutStr.append(S.begin(), S.end()); 613 break; 614 } 615 case Diagnostic::ak_c_string: { 616 const char *S = getArgCStr(ArgNo); 617 assert(ModifierLen == 0 && "No modifiers for strings yet"); 618 619 // Don't crash if get passed a null pointer by accident. 620 if (!S) 621 S = "(null)"; 622 623 OutStr.append(S, S + strlen(S)); 624 break; 625 } 626 // ---- INTEGERS ---- 627 case Diagnostic::ak_sint: { 628 int Val = getArgSInt(ArgNo); 629 630 if (ModifierIs(Modifier, ModifierLen, "select")) { 631 HandleSelectModifier(*this, (unsigned)Val, Argument, ArgumentLen, 632 OutStr); 633 } else if (ModifierIs(Modifier, ModifierLen, "s")) { 634 HandleIntegerSModifier(Val, OutStr); 635 } else if (ModifierIs(Modifier, ModifierLen, "plural")) { 636 HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen, 637 OutStr); 638 } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) { 639 HandleOrdinalModifier((unsigned)Val, OutStr); 640 } else { 641 assert(ModifierLen == 0 && "Unknown integer modifier"); 642 llvm::raw_svector_ostream(OutStr) << Val; 643 } 644 break; 645 } 646 case Diagnostic::ak_uint: { 647 unsigned Val = getArgUInt(ArgNo); 648 649 if (ModifierIs(Modifier, ModifierLen, "select")) { 650 HandleSelectModifier(*this, Val, Argument, ArgumentLen, 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(Val, OutStr); 658 } else { 659 assert(ModifierLen == 0 && "Unknown integer modifier"); 660 llvm::raw_svector_ostream(OutStr) << Val; 661 } 662 break; 663 } 664 // ---- NAMES and TYPES ---- 665 case Diagnostic::ak_identifierinfo: { 666 const IdentifierInfo *II = getArgIdentifier(ArgNo); 667 assert(ModifierLen == 0 && "No modifiers for strings yet"); 668 669 // Don't crash if get passed a null pointer by accident. 670 if (!II) { 671 const char *S = "(null)"; 672 OutStr.append(S, S + strlen(S)); 673 continue; 674 } 675 676 llvm::raw_svector_ostream(OutStr) << '\'' << II->getName() << '\''; 677 break; 678 } 679 case Diagnostic::ak_qualtype: 680 case Diagnostic::ak_declarationname: 681 case Diagnostic::ak_nameddecl: 682 case Diagnostic::ak_nestednamespec: 683 case Diagnostic::ak_declcontext: 684 getDiags()->ConvertArgToString(Kind, getRawArg(ArgNo), 685 Modifier, ModifierLen, 686 Argument, ArgumentLen, 687 FormattedArgs.data(), FormattedArgs.size(), 688 OutStr, QualTypeVals); 689 break; 690 } 691 692 // Remember this argument info for subsequent formatting operations. Turn 693 // std::strings into a null terminated string to make it be the same case as 694 // all the other ones. 695 if (Kind != Diagnostic::ak_std_string) 696 FormattedArgs.push_back(std::make_pair(Kind, getRawArg(ArgNo))); 697 else 698 FormattedArgs.push_back(std::make_pair(Diagnostic::ak_c_string, 699 (intptr_t)getArgStdStr(ArgNo).c_str())); 700 701 } 702} 703 704StoredDiagnostic::StoredDiagnostic() { } 705 706StoredDiagnostic::StoredDiagnostic(Diagnostic::Level Level, unsigned ID, 707 StringRef Message) 708 : ID(ID), Level(Level), Loc(), Message(Message) { } 709 710StoredDiagnostic::StoredDiagnostic(Diagnostic::Level Level, 711 const DiagnosticInfo &Info) 712 : ID(Info.getID()), Level(Level) 713{ 714 assert((Info.getLocation().isInvalid() || Info.hasSourceManager()) && 715 "Valid source location without setting a source manager for diagnostic"); 716 if (Info.getLocation().isValid()) 717 Loc = FullSourceLoc(Info.getLocation(), Info.getSourceManager()); 718 llvm::SmallString<64> Message; 719 Info.FormatDiagnostic(Message); 720 this->Message.assign(Message.begin(), Message.end()); 721 722 Ranges.reserve(Info.getNumRanges()); 723 for (unsigned I = 0, N = Info.getNumRanges(); I != N; ++I) 724 Ranges.push_back(Info.getRange(I)); 725 726 FixIts.reserve(Info.getNumFixItHints()); 727 for (unsigned I = 0, N = Info.getNumFixItHints(); I != N; ++I) 728 FixIts.push_back(Info.getFixItHint(I)); 729} 730 731StoredDiagnostic::StoredDiagnostic(Diagnostic::Level Level, unsigned ID, 732 StringRef Message, FullSourceLoc Loc, 733 ArrayRef<CharSourceRange> Ranges, 734 ArrayRef<FixItHint> Fixits) 735 : ID(ID), Level(Level), Loc(Loc), Message(Message) 736{ 737 this->Ranges.assign(Ranges.begin(), Ranges.end()); 738 this->FixIts.assign(FixIts.begin(), FixIts.end()); 739} 740 741StoredDiagnostic::~StoredDiagnostic() { } 742 743/// IncludeInDiagnosticCounts - This method (whose default implementation 744/// returns true) indicates whether the diagnostics handled by this 745/// DiagnosticClient should be included in the number of diagnostics 746/// reported by Diagnostic. 747bool DiagnosticClient::IncludeInDiagnosticCounts() const { return true; } 748 749PartialDiagnostic::StorageAllocator::StorageAllocator() { 750 for (unsigned I = 0; I != NumCached; ++I) 751 FreeList[I] = Cached + I; 752 NumFreeListEntries = NumCached; 753} 754 755PartialDiagnostic::StorageAllocator::~StorageAllocator() { 756 // Don't assert if we are in a CrashRecovery context, as this 757 // invariant may be invalidated during a crash. 758 assert((NumFreeListEntries == NumCached || llvm::CrashRecoveryContext::isRecoveringFromCrash()) && "A partial is on the lamb"); 759} 760