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diff --git a/clang/lib/Basic/Diagnostic.cpp b/clang/lib/Basic/Diagnostic.cpp
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+//===--- Diagnostic.cpp - C Language Family Diagnostic Handling -----------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Diagnostic-related interfaces.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Basic/Diagnostic.h"
+#include "clang/Basic/IdentifierTable.h"
+#include "clang/Basic/PartialDiagnostic.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/CrashRecoveryContext.h"
+
+using namespace clang;
+
+static void DummyArgToStringFn(DiagnosticsEngine::ArgumentKind AK, intptr_t QT,
+ const char *Modifier, unsigned ML,
+ const char *Argument, unsigned ArgLen,
+ const DiagnosticsEngine::ArgumentValue *PrevArgs,
+ unsigned NumPrevArgs,
+ SmallVectorImpl<char> &Output,
+ void *Cookie,
+ ArrayRef<intptr_t> QualTypeVals) {
+ const char *Str = "<can't format argument>";
+ Output.append(Str, Str+strlen(Str));
+}
+
+
+DiagnosticsEngine::DiagnosticsEngine(
+ const IntrusiveRefCntPtr<DiagnosticIDs> &diags,
+ DiagnosticConsumer *client, bool ShouldOwnClient)
+ : Diags(diags), Client(client), OwnsDiagClient(ShouldOwnClient),
+ SourceMgr(0) {
+ ArgToStringFn = DummyArgToStringFn;
+ ArgToStringCookie = 0;
+
+ AllExtensionsSilenced = 0;
+ IgnoreAllWarnings = false;
+ WarningsAsErrors = false;
+ EnableAllWarnings = false;
+ ErrorsAsFatal = false;
+ SuppressSystemWarnings = false;
+ SuppressAllDiagnostics = false;
+ ShowOverloads = Ovl_All;
+ ExtBehavior = Ext_Ignore;
+
+ ErrorLimit = 0;
+ TemplateBacktraceLimit = 0;
+ ConstexprBacktraceLimit = 0;
+
+ Reset();
+}
+
+DiagnosticsEngine::~DiagnosticsEngine() {
+ if (OwnsDiagClient)
+ delete Client;
+}
+
+void DiagnosticsEngine::setClient(DiagnosticConsumer *client,
+ bool ShouldOwnClient) {
+ if (OwnsDiagClient && Client)
+ delete Client;
+
+ Client = client;
+ OwnsDiagClient = ShouldOwnClient;
+}
+
+void DiagnosticsEngine::pushMappings(SourceLocation Loc) {
+ DiagStateOnPushStack.push_back(GetCurDiagState());
+}
+
+bool DiagnosticsEngine::popMappings(SourceLocation Loc) {
+ if (DiagStateOnPushStack.empty())
+ return false;
+
+ if (DiagStateOnPushStack.back() != GetCurDiagState()) {
+ // State changed at some point between push/pop.
+ PushDiagStatePoint(DiagStateOnPushStack.back(), Loc);
+ }
+ DiagStateOnPushStack.pop_back();
+ return true;
+}
+
+void DiagnosticsEngine::Reset() {
+ ErrorOccurred = false;
+ FatalErrorOccurred = false;
+ UnrecoverableErrorOccurred = false;
+
+ NumWarnings = 0;
+ NumErrors = 0;
+ NumErrorsSuppressed = 0;
+ TrapNumErrorsOccurred = 0;
+ TrapNumUnrecoverableErrorsOccurred = 0;
+
+ CurDiagID = ~0U;
+ // Set LastDiagLevel to an "unset" state. If we set it to 'Ignored', notes
+ // using a DiagnosticsEngine associated to a translation unit that follow
+ // diagnostics from a DiagnosticsEngine associated to anoter t.u. will not be
+ // displayed.
+ LastDiagLevel = (DiagnosticIDs::Level)-1;
+ DelayedDiagID = 0;
+
+ // Clear state related to #pragma diagnostic.
+ DiagStates.clear();
+ DiagStatePoints.clear();
+ DiagStateOnPushStack.clear();
+
+ // Create a DiagState and DiagStatePoint representing diagnostic changes
+ // through command-line.
+ DiagStates.push_back(DiagState());
+ PushDiagStatePoint(&DiagStates.back(), SourceLocation());
+}
+
+void DiagnosticsEngine::SetDelayedDiagnostic(unsigned DiagID, StringRef Arg1,
+ StringRef Arg2) {
+ if (DelayedDiagID)
+ return;
+
+ DelayedDiagID = DiagID;
+ DelayedDiagArg1 = Arg1.str();
+ DelayedDiagArg2 = Arg2.str();
+}
+
+void DiagnosticsEngine::ReportDelayed() {
+ Report(DelayedDiagID) << DelayedDiagArg1 << DelayedDiagArg2;
+ DelayedDiagID = 0;
+ DelayedDiagArg1.clear();
+ DelayedDiagArg2.clear();
+}
+
+DiagnosticsEngine::DiagStatePointsTy::iterator
+DiagnosticsEngine::GetDiagStatePointForLoc(SourceLocation L) const {
+ assert(!DiagStatePoints.empty());
+ assert(DiagStatePoints.front().Loc.isInvalid() &&
+ "Should have created a DiagStatePoint for command-line");
+
+ FullSourceLoc Loc(L, *SourceMgr);
+ if (Loc.isInvalid())
+ return DiagStatePoints.end() - 1;
+
+ DiagStatePointsTy::iterator Pos = DiagStatePoints.end();
+ FullSourceLoc LastStateChangePos = DiagStatePoints.back().Loc;
+ if (LastStateChangePos.isValid() &&
+ Loc.isBeforeInTranslationUnitThan(LastStateChangePos))
+ Pos = std::upper_bound(DiagStatePoints.begin(), DiagStatePoints.end(),
+ DiagStatePoint(0, Loc));
+ --Pos;
+ return Pos;
+}
+
+/// \brief This allows the client to specify that certain
+/// warnings are ignored. Notes can never be mapped, errors can only be
+/// mapped to fatal, and WARNINGs and EXTENSIONs can be mapped arbitrarily.
+///
+/// \param The source location that this change of diagnostic state should
+/// take affect. It can be null if we are setting the latest state.
+void DiagnosticsEngine::setDiagnosticMapping(diag::kind Diag, diag::Mapping Map,
+ SourceLocation L) {
+ assert(Diag < diag::DIAG_UPPER_LIMIT &&
+ "Can only map builtin diagnostics");
+ assert((Diags->isBuiltinWarningOrExtension(Diag) ||
+ (Map == diag::MAP_FATAL || Map == diag::MAP_ERROR)) &&
+ "Cannot map errors into warnings!");
+ assert(!DiagStatePoints.empty());
+
+ FullSourceLoc Loc(L, *SourceMgr);
+ FullSourceLoc LastStateChangePos = DiagStatePoints.back().Loc;
+ // Don't allow a mapping to a warning override an error/fatal mapping.
+ if (Map == diag::MAP_WARNING) {
+ DiagnosticMappingInfo &Info = GetCurDiagState()->getOrAddMappingInfo(Diag);
+ if (Info.getMapping() == diag::MAP_ERROR ||
+ Info.getMapping() == diag::MAP_FATAL)
+ Map = Info.getMapping();
+ }
+ DiagnosticMappingInfo MappingInfo = makeMappingInfo(Map, L);
+
+ // Common case; setting all the diagnostics of a group in one place.
+ if (Loc.isInvalid() || Loc == LastStateChangePos) {
+ GetCurDiagState()->setMappingInfo(Diag, MappingInfo);
+ return;
+ }
+
+ // Another common case; modifying diagnostic state in a source location
+ // after the previous one.
+ if ((Loc.isValid() && LastStateChangePos.isInvalid()) ||
+ LastStateChangePos.isBeforeInTranslationUnitThan(Loc)) {
+ // A diagnostic pragma occurred, create a new DiagState initialized with
+ // the current one and a new DiagStatePoint to record at which location
+ // the new state became active.
+ DiagStates.push_back(*GetCurDiagState());
+ PushDiagStatePoint(&DiagStates.back(), Loc);
+ GetCurDiagState()->setMappingInfo(Diag, MappingInfo);
+ return;
+ }
+
+ // We allow setting the diagnostic state in random source order for
+ // completeness but it should not be actually happening in normal practice.
+
+ DiagStatePointsTy::iterator Pos = GetDiagStatePointForLoc(Loc);
+ assert(Pos != DiagStatePoints.end());
+
+ // Update all diagnostic states that are active after the given location.
+ for (DiagStatePointsTy::iterator
+ I = Pos+1, E = DiagStatePoints.end(); I != E; ++I) {
+ GetCurDiagState()->setMappingInfo(Diag, MappingInfo);
+ }
+
+ // If the location corresponds to an existing point, just update its state.
+ if (Pos->Loc == Loc) {
+ GetCurDiagState()->setMappingInfo(Diag, MappingInfo);
+ return;
+ }
+
+ // Create a new state/point and fit it into the vector of DiagStatePoints
+ // so that the vector is always ordered according to location.
+ Pos->Loc.isBeforeInTranslationUnitThan(Loc);
+ DiagStates.push_back(*Pos->State);
+ DiagState *NewState = &DiagStates.back();
+ GetCurDiagState()->setMappingInfo(Diag, MappingInfo);
+ DiagStatePoints.insert(Pos+1, DiagStatePoint(NewState,
+ FullSourceLoc(Loc, *SourceMgr)));
+}
+
+bool DiagnosticsEngine::setDiagnosticGroupMapping(
+ StringRef Group, diag::Mapping Map, SourceLocation Loc)
+{
+ // Get the diagnostics in this group.
+ llvm::SmallVector<diag::kind, 8> GroupDiags;
+ if (Diags->getDiagnosticsInGroup(Group, GroupDiags))
+ return true;
+
+ // Set the mapping.
+ for (unsigned i = 0, e = GroupDiags.size(); i != e; ++i)
+ setDiagnosticMapping(GroupDiags[i], Map, Loc);
+
+ return false;
+}
+
+void DiagnosticsEngine::setDiagnosticWarningAsError(diag::kind Diag,
+ bool Enabled) {
+ // If we are enabling this feature, just set the diagnostic mappings to map to
+ // errors.
+ if (Enabled)
+ setDiagnosticMapping(Diag, diag::MAP_ERROR, SourceLocation());
+
+ // Otherwise, we want to set the diagnostic mapping's "no Werror" bit, and
+ // potentially downgrade anything already mapped to be a warning.
+ DiagnosticMappingInfo &Info = GetCurDiagState()->getOrAddMappingInfo(Diag);
+
+ if (Info.getMapping() == diag::MAP_ERROR ||
+ Info.getMapping() == diag::MAP_FATAL)
+ Info.setMapping(diag::MAP_WARNING);
+
+ Info.setNoWarningAsError(true);
+}
+
+bool DiagnosticsEngine::setDiagnosticGroupWarningAsError(StringRef Group,
+ bool Enabled) {
+ // If we are enabling this feature, just set the diagnostic mappings to map to
+ // errors.
+ if (Enabled)
+ return setDiagnosticGroupMapping(Group, diag::MAP_ERROR);
+
+ // Otherwise, we want to set the diagnostic mapping's "no Werror" bit, and
+ // potentially downgrade anything already mapped to be a warning.
+
+ // Get the diagnostics in this group.
+ llvm::SmallVector<diag::kind, 8> GroupDiags;
+ if (Diags->getDiagnosticsInGroup(Group, GroupDiags))
+ return true;
+
+ // Perform the mapping change.
+ for (unsigned i = 0, e = GroupDiags.size(); i != e; ++i) {
+ DiagnosticMappingInfo &Info = GetCurDiagState()->getOrAddMappingInfo(
+ GroupDiags[i]);
+
+ if (Info.getMapping() == diag::MAP_ERROR ||
+ Info.getMapping() == diag::MAP_FATAL)
+ Info.setMapping(diag::MAP_WARNING);
+
+ Info.setNoWarningAsError(true);
+ }
+
+ return false;
+}
+
+void DiagnosticsEngine::setDiagnosticErrorAsFatal(diag::kind Diag,
+ bool Enabled) {
+ // If we are enabling this feature, just set the diagnostic mappings to map to
+ // errors.
+ if (Enabled)
+ setDiagnosticMapping(Diag, diag::MAP_FATAL, SourceLocation());
+
+ // Otherwise, we want to set the diagnostic mapping's "no Werror" bit, and
+ // potentially downgrade anything already mapped to be a warning.
+ DiagnosticMappingInfo &Info = GetCurDiagState()->getOrAddMappingInfo(Diag);
+
+ if (Info.getMapping() == diag::MAP_FATAL)
+ Info.setMapping(diag::MAP_ERROR);
+
+ Info.setNoErrorAsFatal(true);
+}
+
+bool DiagnosticsEngine::setDiagnosticGroupErrorAsFatal(StringRef Group,
+ bool Enabled) {
+ // If we are enabling this feature, just set the diagnostic mappings to map to
+ // fatal errors.
+ if (Enabled)
+ return setDiagnosticGroupMapping(Group, diag::MAP_FATAL);
+
+ // Otherwise, we want to set the diagnostic mapping's "no Werror" bit, and
+ // potentially downgrade anything already mapped to be an error.
+
+ // Get the diagnostics in this group.
+ llvm::SmallVector<diag::kind, 8> GroupDiags;
+ if (Diags->getDiagnosticsInGroup(Group, GroupDiags))
+ return true;
+
+ // Perform the mapping change.
+ for (unsigned i = 0, e = GroupDiags.size(); i != e; ++i) {
+ DiagnosticMappingInfo &Info = GetCurDiagState()->getOrAddMappingInfo(
+ GroupDiags[i]);
+
+ if (Info.getMapping() == diag::MAP_FATAL)
+ Info.setMapping(diag::MAP_ERROR);
+
+ Info.setNoErrorAsFatal(true);
+ }
+
+ return false;
+}
+
+void DiagnosticsEngine::setMappingToAllDiagnostics(diag::Mapping Map,
+ SourceLocation Loc) {
+ // Get all the diagnostics.
+ llvm::SmallVector<diag::kind, 64> AllDiags;
+ Diags->getAllDiagnostics(AllDiags);
+
+ // Set the mapping.
+ for (unsigned i = 0, e = AllDiags.size(); i != e; ++i)
+ if (Diags->isBuiltinWarningOrExtension(AllDiags[i]))
+ setDiagnosticMapping(AllDiags[i], Map, Loc);
+}
+
+void DiagnosticsEngine::Report(const StoredDiagnostic &storedDiag) {
+ assert(CurDiagID == ~0U && "Multiple diagnostics in flight at once!");
+
+ CurDiagLoc = storedDiag.getLocation();
+ CurDiagID = storedDiag.getID();
+ NumDiagArgs = 0;
+
+ NumDiagRanges = storedDiag.range_size();
+ assert(NumDiagRanges < DiagnosticsEngine::MaxRanges &&
+ "Too many arguments to diagnostic!");
+ unsigned i = 0;
+ for (StoredDiagnostic::range_iterator
+ RI = storedDiag.range_begin(),
+ RE = storedDiag.range_end(); RI != RE; ++RI)
+ DiagRanges[i++] = *RI;
+
+ assert(NumDiagRanges < DiagnosticsEngine::MaxFixItHints &&
+ "Too many arguments to diagnostic!");
+ NumDiagFixItHints = 0;
+ for (StoredDiagnostic::fixit_iterator
+ FI = storedDiag.fixit_begin(),
+ FE = storedDiag.fixit_end(); FI != FE; ++FI)
+ DiagFixItHints[NumDiagFixItHints++] = *FI;
+
+ assert(Client && "DiagnosticConsumer not set!");
+ Level DiagLevel = storedDiag.getLevel();
+ Diagnostic Info(this, storedDiag.getMessage());
+ Client->HandleDiagnostic(DiagLevel, Info);
+ if (Client->IncludeInDiagnosticCounts()) {
+ if (DiagLevel == DiagnosticsEngine::Warning)
+ ++NumWarnings;
+ }
+
+ CurDiagID = ~0U;
+}
+
+bool DiagnosticsEngine::EmitCurrentDiagnostic() {
+ // Process the diagnostic, sending the accumulated information to the
+ // DiagnosticConsumer.
+ bool Emitted = ProcessDiag();
+
+ // Clear out the current diagnostic object.
+ unsigned DiagID = CurDiagID;
+ Clear();
+
+ // If there was a delayed diagnostic, emit it now.
+ if (DelayedDiagID && DelayedDiagID != DiagID)
+ ReportDelayed();
+
+ return Emitted;
+}
+
+
+DiagnosticConsumer::~DiagnosticConsumer() {}
+
+void DiagnosticConsumer::HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
+ const Diagnostic &Info) {
+ if (!IncludeInDiagnosticCounts())
+ return;
+
+ if (DiagLevel == DiagnosticsEngine::Warning)
+ ++NumWarnings;
+ else if (DiagLevel >= DiagnosticsEngine::Error)
+ ++NumErrors;
+}
+
+/// ModifierIs - Return true if the specified modifier matches specified string.
+template <std::size_t StrLen>
+static bool ModifierIs(const char *Modifier, unsigned ModifierLen,
+ const char (&Str)[StrLen]) {
+ return StrLen-1 == ModifierLen && !memcmp(Modifier, Str, StrLen-1);
+}
+
+/// ScanForward - Scans forward, looking for the given character, skipping
+/// nested clauses and escaped characters.
+static const char *ScanFormat(const char *I, const char *E, char Target) {
+ unsigned Depth = 0;
+
+ for ( ; I != E; ++I) {
+ if (Depth == 0 && *I == Target) return I;
+ if (Depth != 0 && *I == '}') Depth--;
+
+ if (*I == '%') {
+ I++;
+ if (I == E) break;
+
+ // Escaped characters get implicitly skipped here.
+
+ // Format specifier.
+ if (!isdigit(*I) && !ispunct(*I)) {
+ for (I++; I != E && !isdigit(*I) && *I != '{'; I++) ;
+ if (I == E) break;
+ if (*I == '{')
+ Depth++;
+ }
+ }
+ }
+ return E;
+}
+
+/// HandleSelectModifier - Handle the integer 'select' modifier. This is used
+/// like this: %select{foo|bar|baz}2. This means that the integer argument
+/// "%2" has a value from 0-2. If the value is 0, the diagnostic prints 'foo'.
+/// If the value is 1, it prints 'bar'. If it has the value 2, it prints 'baz'.
+/// This is very useful for certain classes of variant diagnostics.
+static void HandleSelectModifier(const Diagnostic &DInfo, unsigned ValNo,
+ const char *Argument, unsigned ArgumentLen,
+ SmallVectorImpl<char> &OutStr) {
+ const char *ArgumentEnd = Argument+ArgumentLen;
+
+ // Skip over 'ValNo' |'s.
+ while (ValNo) {
+ const char *NextVal = ScanFormat(Argument, ArgumentEnd, '|');
+ assert(NextVal != ArgumentEnd && "Value for integer select modifier was"
+ " larger than the number of options in the diagnostic string!");
+ Argument = NextVal+1; // Skip this string.
+ --ValNo;
+ }
+
+ // Get the end of the value. This is either the } or the |.
+ const char *EndPtr = ScanFormat(Argument, ArgumentEnd, '|');
+
+ // Recursively format the result of the select clause into the output string.
+ DInfo.FormatDiagnostic(Argument, EndPtr, OutStr);
+}
+
+/// HandleIntegerSModifier - Handle the integer 's' modifier. This adds the
+/// letter 's' to the string if the value is not 1. This is used in cases like
+/// this: "you idiot, you have %4 parameter%s4!".
+static void HandleIntegerSModifier(unsigned ValNo,
+ SmallVectorImpl<char> &OutStr) {
+ if (ValNo != 1)
+ OutStr.push_back('s');
+}
+
+/// HandleOrdinalModifier - Handle the integer 'ord' modifier. This
+/// prints the ordinal form of the given integer, with 1 corresponding
+/// to the first ordinal. Currently this is hard-coded to use the
+/// English form.
+static void HandleOrdinalModifier(unsigned ValNo,
+ SmallVectorImpl<char> &OutStr) {
+ assert(ValNo != 0 && "ValNo must be strictly positive!");
+
+ llvm::raw_svector_ostream Out(OutStr);
+
+ // We could use text forms for the first N ordinals, but the numeric
+ // forms are actually nicer in diagnostics because they stand out.
+ Out << ValNo;
+
+ // It is critically important that we do this perfectly for
+ // user-written sequences with over 100 elements.
+ switch (ValNo % 100) {
+ case 11:
+ case 12:
+ case 13:
+ Out << "th"; return;
+ default:
+ switch (ValNo % 10) {
+ case 1: Out << "st"; return;
+ case 2: Out << "nd"; return;
+ case 3: Out << "rd"; return;
+ default: Out << "th"; return;
+ }
+ }
+}
+
+
+/// PluralNumber - Parse an unsigned integer and advance Start.
+static unsigned PluralNumber(const char *&Start, const char *End) {
+ // Programming 101: Parse a decimal number :-)
+ unsigned Val = 0;
+ while (Start != End && *Start >= '0' && *Start <= '9') {
+ Val *= 10;
+ Val += *Start - '0';
+ ++Start;
+ }
+ return Val;
+}
+
+/// TestPluralRange - Test if Val is in the parsed range. Modifies Start.
+static bool TestPluralRange(unsigned Val, const char *&Start, const char *End) {
+ if (*Start != '[') {
+ unsigned Ref = PluralNumber(Start, End);
+ return Ref == Val;
+ }
+
+ ++Start;
+ unsigned Low = PluralNumber(Start, End);
+ assert(*Start == ',' && "Bad plural expression syntax: expected ,");
+ ++Start;
+ unsigned High = PluralNumber(Start, End);
+ assert(*Start == ']' && "Bad plural expression syntax: expected )");
+ ++Start;
+ return Low <= Val && Val <= High;
+}
+
+/// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier.
+static bool EvalPluralExpr(unsigned ValNo, const char *Start, const char *End) {
+ // Empty condition?
+ if (*Start == ':')
+ return true;
+
+ while (1) {
+ char C = *Start;
+ if (C == '%') {
+ // Modulo expression
+ ++Start;
+ unsigned Arg = PluralNumber(Start, End);
+ assert(*Start == '=' && "Bad plural expression syntax: expected =");
+ ++Start;
+ unsigned ValMod = ValNo % Arg;
+ if (TestPluralRange(ValMod, Start, End))
+ return true;
+ } else {
+ assert((C == '[' || (C >= '0' && C <= '9')) &&
+ "Bad plural expression syntax: unexpected character");
+ // Range expression
+ if (TestPluralRange(ValNo, Start, End))
+ return true;
+ }
+
+ // Scan for next or-expr part.
+ Start = std::find(Start, End, ',');
+ if (Start == End)
+ break;
+ ++Start;
+ }
+ return false;
+}
+
+/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used
+/// for complex plural forms, or in languages where all plurals are complex.
+/// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are
+/// conditions that are tested in order, the form corresponding to the first
+/// that applies being emitted. The empty condition is always true, making the
+/// last form a default case.
+/// Conditions are simple boolean expressions, where n is the number argument.
+/// Here are the rules.
+/// condition := expression | empty
+/// empty := -> always true
+/// expression := numeric [',' expression] -> logical or
+/// numeric := range -> true if n in range
+/// | '%' number '=' range -> true if n % number in range
+/// range := number
+/// | '[' number ',' number ']' -> ranges are inclusive both ends
+///
+/// Here are some examples from the GNU gettext manual written in this form:
+/// English:
+/// {1:form0|:form1}
+/// Latvian:
+/// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0}
+/// Gaeilge:
+/// {1:form0|2:form1|:form2}
+/// Romanian:
+/// {1:form0|0,%100=[1,19]:form1|:form2}
+/// Lithuanian:
+/// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1}
+/// Russian (requires repeated form):
+/// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2}
+/// Slovak
+/// {1:form0|[2,4]:form1|:form2}
+/// Polish (requires repeated form):
+/// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2}
+static void HandlePluralModifier(const Diagnostic &DInfo, unsigned ValNo,
+ const char *Argument, unsigned ArgumentLen,
+ SmallVectorImpl<char> &OutStr) {
+ const char *ArgumentEnd = Argument + ArgumentLen;
+ while (1) {
+ assert(Argument < ArgumentEnd && "Plural expression didn't match.");
+ const char *ExprEnd = Argument;
+ while (*ExprEnd != ':') {
+ assert(ExprEnd != ArgumentEnd && "Plural missing expression end");
+ ++ExprEnd;
+ }
+ if (EvalPluralExpr(ValNo, Argument, ExprEnd)) {
+ Argument = ExprEnd + 1;
+ ExprEnd = ScanFormat(Argument, ArgumentEnd, '|');
+
+ // Recursively format the result of the plural clause into the
+ // output string.
+ DInfo.FormatDiagnostic(Argument, ExprEnd, OutStr);
+ return;
+ }
+ Argument = ScanFormat(Argument, ArgumentEnd - 1, '|') + 1;
+ }
+}
+
+
+/// FormatDiagnostic - Format this diagnostic into a string, substituting the
+/// formal arguments into the %0 slots. The result is appended onto the Str
+/// array.
+void Diagnostic::
+FormatDiagnostic(SmallVectorImpl<char> &OutStr) const {
+ if (!StoredDiagMessage.empty()) {
+ OutStr.append(StoredDiagMessage.begin(), StoredDiagMessage.end());
+ return;
+ }
+
+ StringRef Diag =
+ getDiags()->getDiagnosticIDs()->getDescription(getID());
+
+ FormatDiagnostic(Diag.begin(), Diag.end(), OutStr);
+}
+
+void Diagnostic::
+FormatDiagnostic(const char *DiagStr, const char *DiagEnd,
+ SmallVectorImpl<char> &OutStr) const {
+
+ /// FormattedArgs - Keep track of all of the arguments formatted by
+ /// ConvertArgToString and pass them into subsequent calls to
+ /// ConvertArgToString, allowing the implementation to avoid redundancies in
+ /// obvious cases.
+ SmallVector<DiagnosticsEngine::ArgumentValue, 8> FormattedArgs;
+
+ /// QualTypeVals - Pass a vector of arrays so that QualType names can be
+ /// compared to see if more information is needed to be printed.
+ SmallVector<intptr_t, 2> QualTypeVals;
+ for (unsigned i = 0, e = getNumArgs(); i < e; ++i)
+ if (getArgKind(i) == DiagnosticsEngine::ak_qualtype)
+ QualTypeVals.push_back(getRawArg(i));
+
+ while (DiagStr != DiagEnd) {
+ if (DiagStr[0] != '%') {
+ // Append non-%0 substrings to Str if we have one.
+ const char *StrEnd = std::find(DiagStr, DiagEnd, '%');
+ OutStr.append(DiagStr, StrEnd);
+ DiagStr = StrEnd;
+ continue;
+ } else if (ispunct(DiagStr[1])) {
+ OutStr.push_back(DiagStr[1]); // %% -> %.
+ DiagStr += 2;
+ continue;
+ }
+
+ // Skip the %.
+ ++DiagStr;
+
+ // This must be a placeholder for a diagnostic argument. The format for a
+ // placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0".
+ // The digit is a number from 0-9 indicating which argument this comes from.
+ // The modifier is a string of digits from the set [-a-z]+, arguments is a
+ // brace enclosed string.
+ const char *Modifier = 0, *Argument = 0;
+ unsigned ModifierLen = 0, ArgumentLen = 0;
+
+ // Check to see if we have a modifier. If so eat it.
+ if (!isdigit(DiagStr[0])) {
+ Modifier = DiagStr;
+ while (DiagStr[0] == '-' ||
+ (DiagStr[0] >= 'a' && DiagStr[0] <= 'z'))
+ ++DiagStr;
+ ModifierLen = DiagStr-Modifier;
+
+ // If we have an argument, get it next.
+ if (DiagStr[0] == '{') {
+ ++DiagStr; // Skip {.
+ Argument = DiagStr;
+
+ DiagStr = ScanFormat(DiagStr, DiagEnd, '}');
+ assert(DiagStr != DiagEnd && "Mismatched {}'s in diagnostic string!");
+ ArgumentLen = DiagStr-Argument;
+ ++DiagStr; // Skip }.
+ }
+ }
+
+ assert(isdigit(*DiagStr) && "Invalid format for argument in diagnostic");
+ unsigned ArgNo = *DiagStr++ - '0';
+
+ DiagnosticsEngine::ArgumentKind Kind = getArgKind(ArgNo);
+
+ switch (Kind) {
+ // ---- STRINGS ----
+ case DiagnosticsEngine::ak_std_string: {
+ const std::string &S = getArgStdStr(ArgNo);
+ assert(ModifierLen == 0 && "No modifiers for strings yet");
+ OutStr.append(S.begin(), S.end());
+ break;
+ }
+ case DiagnosticsEngine::ak_c_string: {
+ const char *S = getArgCStr(ArgNo);
+ assert(ModifierLen == 0 && "No modifiers for strings yet");
+
+ // Don't crash if get passed a null pointer by accident.
+ if (!S)
+ S = "(null)";
+
+ OutStr.append(S, S + strlen(S));
+ break;
+ }
+ // ---- INTEGERS ----
+ case DiagnosticsEngine::ak_sint: {
+ int Val = getArgSInt(ArgNo);
+
+ if (ModifierIs(Modifier, ModifierLen, "select")) {
+ HandleSelectModifier(*this, (unsigned)Val, Argument, ArgumentLen,
+ OutStr);
+ } else if (ModifierIs(Modifier, ModifierLen, "s")) {
+ HandleIntegerSModifier(Val, OutStr);
+ } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
+ HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
+ OutStr);
+ } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
+ HandleOrdinalModifier((unsigned)Val, OutStr);
+ } else {
+ assert(ModifierLen == 0 && "Unknown integer modifier");
+ llvm::raw_svector_ostream(OutStr) << Val;
+ }
+ break;
+ }
+ case DiagnosticsEngine::ak_uint: {
+ unsigned Val = getArgUInt(ArgNo);
+
+ if (ModifierIs(Modifier, ModifierLen, "select")) {
+ HandleSelectModifier(*this, Val, Argument, ArgumentLen, OutStr);
+ } else if (ModifierIs(Modifier, ModifierLen, "s")) {
+ HandleIntegerSModifier(Val, OutStr);
+ } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
+ HandlePluralModifier(*this, (unsigned)Val, Argument, ArgumentLen,
+ OutStr);
+ } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
+ HandleOrdinalModifier(Val, OutStr);
+ } else {
+ assert(ModifierLen == 0 && "Unknown integer modifier");
+ llvm::raw_svector_ostream(OutStr) << Val;
+ }
+ break;
+ }
+ // ---- NAMES and TYPES ----
+ case DiagnosticsEngine::ak_identifierinfo: {
+ const IdentifierInfo *II = getArgIdentifier(ArgNo);
+ assert(ModifierLen == 0 && "No modifiers for strings yet");
+
+ // Don't crash if get passed a null pointer by accident.
+ if (!II) {
+ const char *S = "(null)";
+ OutStr.append(S, S + strlen(S));
+ continue;
+ }
+
+ llvm::raw_svector_ostream(OutStr) << '\'' << II->getName() << '\'';
+ break;
+ }
+ case DiagnosticsEngine::ak_qualtype:
+ case DiagnosticsEngine::ak_declarationname:
+ case DiagnosticsEngine::ak_nameddecl:
+ case DiagnosticsEngine::ak_nestednamespec:
+ case DiagnosticsEngine::ak_declcontext:
+ getDiags()->ConvertArgToString(Kind, getRawArg(ArgNo),
+ Modifier, ModifierLen,
+ Argument, ArgumentLen,
+ FormattedArgs.data(), FormattedArgs.size(),
+ OutStr, QualTypeVals);
+ break;
+ }
+
+ // Remember this argument info for subsequent formatting operations. Turn
+ // std::strings into a null terminated string to make it be the same case as
+ // all the other ones.
+ if (Kind != DiagnosticsEngine::ak_std_string)
+ FormattedArgs.push_back(std::make_pair(Kind, getRawArg(ArgNo)));
+ else
+ FormattedArgs.push_back(std::make_pair(DiagnosticsEngine::ak_c_string,
+ (intptr_t)getArgStdStr(ArgNo).c_str()));
+
+ }
+}
+
+StoredDiagnostic::StoredDiagnostic() { }
+
+StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID,
+ StringRef Message)
+ : ID(ID), Level(Level), Loc(), Message(Message) { }
+
+StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level,
+ const Diagnostic &Info)
+ : ID(Info.getID()), Level(Level)
+{
+ assert((Info.getLocation().isInvalid() || Info.hasSourceManager()) &&
+ "Valid source location without setting a source manager for diagnostic");
+ if (Info.getLocation().isValid())
+ Loc = FullSourceLoc(Info.getLocation(), Info.getSourceManager());
+ SmallString<64> Message;
+ Info.FormatDiagnostic(Message);
+ this->Message.assign(Message.begin(), Message.end());
+
+ Ranges.reserve(Info.getNumRanges());
+ for (unsigned I = 0, N = Info.getNumRanges(); I != N; ++I)
+ Ranges.push_back(Info.getRange(I));
+
+ FixIts.reserve(Info.getNumFixItHints());
+ for (unsigned I = 0, N = Info.getNumFixItHints(); I != N; ++I)
+ FixIts.push_back(Info.getFixItHint(I));
+}
+
+StoredDiagnostic::StoredDiagnostic(DiagnosticsEngine::Level Level, unsigned ID,
+ StringRef Message, FullSourceLoc Loc,
+ ArrayRef<CharSourceRange> Ranges,
+ ArrayRef<FixItHint> Fixits)
+ : ID(ID), Level(Level), Loc(Loc), Message(Message)
+{
+ this->Ranges.assign(Ranges.begin(), Ranges.end());
+ this->FixIts.assign(FixIts.begin(), FixIts.end());
+}
+
+StoredDiagnostic::~StoredDiagnostic() { }
+
+/// IncludeInDiagnosticCounts - This method (whose default implementation
+/// returns true) indicates whether the diagnostics handled by this
+/// DiagnosticConsumer should be included in the number of diagnostics
+/// reported by DiagnosticsEngine.
+bool DiagnosticConsumer::IncludeInDiagnosticCounts() const { return true; }
+
+void IgnoringDiagConsumer::anchor() { }
+
+PartialDiagnostic::StorageAllocator::StorageAllocator() {
+ for (unsigned I = 0; I != NumCached; ++I)
+ FreeList[I] = Cached + I;
+ NumFreeListEntries = NumCached;
+}
+
+PartialDiagnostic::StorageAllocator::~StorageAllocator() {
+ // Don't assert if we are in a CrashRecovery context, as this invariant may
+ // be invalidated during a crash.
+ assert((NumFreeListEntries == NumCached ||
+ llvm::CrashRecoveryContext::isRecoveringFromCrash()) &&
+ "A partial is on the lamb");
+}