#include "ClangDiagnosticsEmitter.h"
#include "Record.h"
#include "llvm/Support/Debug.h"
-#include "llvm/Support/Streams.h"
-#include "llvm/ADT/VectorExtras.h"
+#include "llvm/Support/Compiler.h"
#include "llvm/ADT/DenseSet.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/VectorExtras.h"
#include <set>
#include <map>
-
using namespace llvm;
//===----------------------------------------------------------------------===//
-// Generic routines for all Clang TableGen backens.
+// Diagnostic category computation code.
//===----------------------------------------------------------------------===//
-typedef std::vector<Record*> RecordVector;
-typedef std::vector<Record*> SuperClassVector;
-typedef std::vector<RecordVal> RecordValVector;
+namespace {
+class DiagGroupParentMap {
+ std::map<const Record*, std::vector<Record*> > Mapping;
+public:
+ DiagGroupParentMap() {
+ std::vector<Record*> DiagGroups
+ = Records.getAllDerivedDefinitions("DiagGroup");
+ for (unsigned i = 0, e = DiagGroups.size(); i != e; ++i) {
+ std::vector<Record*> SubGroups =
+ DiagGroups[i]->getValueAsListOfDefs("SubGroups");
+ for (unsigned j = 0, e = SubGroups.size(); j != e; ++j)
+ Mapping[SubGroups[j]].push_back(DiagGroups[i]);
+ }
+ }
+
+ const std::vector<Record*> &getParents(const Record *Group) {
+ return Mapping[Group];
+ }
+};
+} // end anonymous namespace.
+
-static const RecordVal* findRecordVal(const Record& R, const std::string &key) {
- const RecordValVector &Vals = R.getValues();
- for (RecordValVector::const_iterator I=Vals.begin(), E=Vals.end(); I!=E; ++I)
- if ((*I).getName() == key)
- return &*I;
+static std::string
+getCategoryFromDiagGroup(const Record *Group,
+ DiagGroupParentMap &DiagGroupParents) {
+ // If the DiagGroup has a category, return it.
+ std::string CatName = Group->getValueAsString("CategoryName");
+ if (!CatName.empty()) return CatName;
- return 0;
+ // The diag group may the subgroup of one or more other diagnostic groups,
+ // check these for a category as well.
+ const std::vector<Record*> &Parents = DiagGroupParents.getParents(Group);
+ for (unsigned i = 0, e = Parents.size(); i != e; ++i) {
+ CatName = getCategoryFromDiagGroup(Parents[i], DiagGroupParents);
+ if (!CatName.empty()) return CatName;
+ }
+ return "";
}
-static const Record* getDiagKind(const Record* DiagClass, const Record &R) {
- const SuperClassVector &SC = R.getSuperClasses();
- for (SuperClassVector::const_iterator I=SC.begin(), E=SC.end(); I!=E; ++I)
- if ((*I)->isSubClassOf(DiagClass))
- return *I;
+/// getDiagnosticCategory - Return the category that the specified diagnostic
+/// lives in.
+static std::string getDiagnosticCategory(const Record *R,
+ DiagGroupParentMap &DiagGroupParents) {
+ // If the diagnostic is in a group, and that group has a category, use it.
+ if (DefInit *Group = dynamic_cast<DefInit*>(R->getValueInit("Group"))) {
+ // Check the diagnostic's diag group for a category.
+ std::string CatName = getCategoryFromDiagGroup(Group->getDef(),
+ DiagGroupParents);
+ if (!CatName.empty()) return CatName;
+ }
- return 0;
+ // If the diagnostic itself has a category, get it.
+ return R->getValueAsString("CategoryName");
}
-static void EmitEscaped(std::ostream& OS, const std::string &s) {
- for (std::string::const_iterator I=s.begin(), E=s.end(); I!=E; ++I)
- switch (*I) {
- default: OS << *I; break;
- case '\"': OS << "\\" << *I; break;
- case '\\': OS << "\\\\"; break;
+namespace {
+ class DiagCategoryIDMap {
+ StringMap<unsigned> CategoryIDs;
+ std::vector<std::string> CategoryStrings;
+ public:
+ DiagCategoryIDMap() {
+ DiagGroupParentMap ParentInfo;
+
+ // The zero'th category is "".
+ CategoryStrings.push_back("");
+ CategoryIDs[""] = 0;
+
+ std::vector<Record*> Diags =
+ Records.getAllDerivedDefinitions("Diagnostic");
+ for (unsigned i = 0, e = Diags.size(); i != e; ++i) {
+ std::string Category = getDiagnosticCategory(Diags[i], ParentInfo);
+ if (Category.empty()) continue; // Skip diags with no category.
+
+ unsigned &ID = CategoryIDs[Category];
+ if (ID != 0) continue; // Already seen.
+
+ ID = CategoryStrings.size();
+ CategoryStrings.push_back(Category);
+ }
}
-}
+
+ unsigned getID(StringRef CategoryString) {
+ return CategoryIDs[CategoryString];
+ }
+
+ typedef std::vector<std::string>::iterator iterator;
+ iterator begin() { return CategoryStrings.begin(); }
+ iterator end() { return CategoryStrings.end(); }
+ };
+} // end anonymous namespace.
+
-static void EmitAllCaps(std::ostream& OS, const std::string &s) {
- for (std::string::const_iterator I=s.begin(), E=s.end(); I!=E; ++I)
- OS << char(toupper(*I));
-}
//===----------------------------------------------------------------------===//
// Warning Tables (.inc file) generation.
//===----------------------------------------------------------------------===//
-static void ProcessDiag(std::ostream& OS, const Record* DiagClass,
- const Record& R) {
-
- const Record* DiagKind = getDiagKind(DiagClass, R);
- if (!DiagKind)
- return;
-
- OS << "DIAG(" << R.getName() << ", ";
- EmitAllCaps(OS, DiagKind->getName());
-
- const RecordVal* Text = findRecordVal(R, "Text");
- assert(Text && "No 'Text' entry in Diagnostic.");
- const StringInit* TextVal = dynamic_cast<const StringInit*>(Text->getValue());
- assert(TextVal && "Value 'Text' must be a string.");
- OS << ", \"";
- EmitEscaped(OS, TextVal->getValue());
- OS << "\")\n";
-}
-
-void ClangDiagsDefsEmitter::run(std::ostream &OS) {
- const RecordVector &Diags = Records.getAllDerivedDefinitions("Diagnostic");
-
- const Record* DiagClass = Records.getClass("Diagnostic");
- assert(DiagClass && "No Diagnostic class defined.");
-
+void ClangDiagsDefsEmitter::run(raw_ostream &OS) {
// Write the #if guard
if (!Component.empty()) {
- OS << "#ifdef ";
- EmitAllCaps(OS, Component);
- OS << "START\n__";
- EmitAllCaps(OS, Component);
- OS << "START = DIAG_START_";
- EmitAllCaps(OS, Component);
- OS << ",\n#undef ";
- EmitAllCaps(OS, Component);
- OS << "START\n#endif\n";
+ std::string ComponentName = UppercaseString(Component);
+ OS << "#ifdef " << ComponentName << "START\n";
+ OS << "__" << ComponentName << "START = DIAG_START_" << ComponentName
+ << ",\n";
+ OS << "#undef " << ComponentName << "START\n";
+ OS << "#endif\n\n";
}
+
+ const std::vector<Record*> &Diags =
+ Records.getAllDerivedDefinitions("Diagnostic");
- for (RecordVector::const_iterator I=Diags.begin(), E=Diags.end(); I!=E; ++I) {
- if (!Component.empty()) {
- const RecordVal* V = findRecordVal(**I, "Component");
- if (!V)
- continue;
-
- const StringInit* SV = dynamic_cast<const StringInit*>(V->getValue());
- if (SV->getValue() != Component)
- continue;
+ DiagCategoryIDMap CategoryIDs;
+ DiagGroupParentMap DGParentMap;
+
+ for (unsigned i = 0, e = Diags.size(); i != e; ++i) {
+ const Record &R = *Diags[i];
+ // Filter by component.
+ if (!Component.empty() && Component != R.getValueAsString("Component"))
+ continue;
+
+ OS << "DIAG(" << R.getName() << ", ";
+ OS << R.getValueAsDef("Class")->getName();
+ OS << ", diag::" << R.getValueAsDef("DefaultMapping")->getName();
+
+ // Description string.
+ OS << ", \"";
+ OS.write_escaped(R.getValueAsString("Text")) << '"';
+
+ // Warning associated with the diagnostic.
+ if (DefInit *DI = dynamic_cast<DefInit*>(R.getValueInit("Group"))) {
+ OS << ", \"";
+ OS.write_escaped(DI->getDef()->getValueAsString("GroupName")) << '"';
+ } else {
+ OS << ", 0";
}
+
+ // SFINAE bit
+ if (R.getValueAsBit("SFINAE"))
+ OS << ", true";
+ else
+ OS << ", false";
- ProcessDiag(OS, DiagClass, **I);
+ // Category number.
+ OS << ", " << CategoryIDs.getID(getDiagnosticCategory(&R, DGParentMap));
+ OS << ")\n";
}
}
//===----------------------------------------------------------------------===//
-// Warning Group Tables generation.
+// Warning Group Tables generation
//===----------------------------------------------------------------------===//
-typedef std::set<const Record*> DiagnosticSet;
-typedef std::map<const Record*, DiagnosticSet> OptionMap;
-typedef llvm::DenseSet<const ListInit*> VisitedLists;
+struct GroupInfo {
+ std::vector<const Record*> DiagsInGroup;
+ std::vector<std::string> SubGroups;
+ unsigned IDNo;
+};
-static void BuildGroup(DiagnosticSet& DS, VisitedLists &Visited, const Init* X);
-
-static void BuildGroup(DiagnosticSet &DS, VisitedLists &Visited,
- const ListInit* LV) {
-
- // Simple hack to prevent including a list multiple times. This may be useful
- // if one declares an Option by including a bunch of other Options that
- // include other Options, etc.
- if (Visited.count(LV))
- return;
+void ClangDiagGroupsEmitter::run(raw_ostream &OS) {
+ // Compute a mapping from a DiagGroup to all of its parents.
+ DiagGroupParentMap DGParentMap;
- Visited.insert(LV);
+ // Invert the 1-[0/1] mapping of diags to group into a one to many mapping of
+ // groups to diags in the group.
+ std::map<std::string, GroupInfo> DiagsInGroup;
- // Iterate through the list and grab all DiagnosticControlled.
- for (ListInit::const_iterator I = LV->begin(), E = LV->end(); I!=E; ++I)
- BuildGroup(DS, Visited, *I);
-}
-
-static void BuildGroup(DiagnosticSet& DS, VisitedLists &Visited,
- const Record *Def) {
-
- // If an Option includes another Option, inline the Diagnostics of the
- // included Option.
- if (Def->isSubClassOf("Option")) {
- if (const RecordVal* V = findRecordVal(*Def, "Members"))
- if (const ListInit* LV = dynamic_cast<const ListInit*>(V->getValue()))
- BuildGroup(DS, Visited, LV);
-
- return;
+ std::vector<Record*> Diags =
+ Records.getAllDerivedDefinitions("Diagnostic");
+ for (unsigned i = 0, e = Diags.size(); i != e; ++i) {
+ const Record *R = Diags[i];
+ DefInit *DI = dynamic_cast<DefInit*>(R->getValueInit("Group"));
+ if (DI == 0) continue;
+ std::string GroupName = DI->getDef()->getValueAsString("GroupName");
+ DiagsInGroup[GroupName].DiagsInGroup.push_back(R);
}
- if (Def->isSubClassOf("DiagnosticControlled"))
- DS.insert(Def);
-}
-
-static void BuildGroup(DiagnosticSet& DS, VisitedLists &Visited,
- const Init* X) {
-
- if (const DefInit *D = dynamic_cast<const DefInit*>(X))
- BuildGroup(DS, Visited, D->getDef());
+ // Add all DiagGroup's to the DiagsInGroup list to make sure we pick up empty
+ // groups (these are warnings that GCC supports that clang never produces).
+ std::vector<Record*> DiagGroups
+ = Records.getAllDerivedDefinitions("DiagGroup");
+ for (unsigned i = 0, e = DiagGroups.size(); i != e; ++i) {
+ Record *Group = DiagGroups[i];
+ GroupInfo &GI = DiagsInGroup[Group->getValueAsString("GroupName")];
+
+ std::vector<Record*> SubGroups = Group->getValueAsListOfDefs("SubGroups");
+ for (unsigned j = 0, e = SubGroups.size(); j != e; ++j)
+ GI.SubGroups.push_back(SubGroups[j]->getValueAsString("GroupName"));
+ }
- // We may have some other cases here in the future.
-}
-
-
-void ClangOptionsEmitter::run(std::ostream &OS) {
- // Build up a map from options to controlled diagnostics.
- OptionMap OM;
-
- const RecordVector &Opts = Records.getAllDerivedDefinitions("Option");
- for (RecordVector::const_iterator I=Opts.begin(), E=Opts.end(); I!=E; ++I)
- if (const RecordVal* V = findRecordVal(**I, "Members"))
- if (const ListInit* LV = dynamic_cast<const ListInit*>(V->getValue())) {
- VisitedLists Visited;
- BuildGroup(OM[*I], Visited, LV);
- }
+ // Assign unique ID numbers to the groups.
+ unsigned IDNo = 0;
+ for (std::map<std::string, GroupInfo>::iterator
+ I = DiagsInGroup.begin(), E = DiagsInGroup.end(); I != E; ++I, ++IDNo)
+ I->second.IDNo = IDNo;
- // Iterate through the OptionMap and emit the declarations.
- for (OptionMap::iterator I = OM.begin(), E = OM.end(); I!=E; ++I) {
-// const RecordVal *V = findRecordVal(*I->first, "Name");
-// assert(V && "Options must have a 'Name' value.");
-// const StringInit* SV = dynamic_cast<const StringInit*>(V->getValue());
-// assert(SV && "'Name' entry must be a string.");
+ // Walk through the groups emitting an array for each diagnostic of the diags
+ // that are mapped to.
+ OS << "\n#ifdef GET_DIAG_ARRAYS\n";
+ unsigned MaxLen = 0;
+ for (std::map<std::string, GroupInfo>::iterator
+ I = DiagsInGroup.begin(), E = DiagsInGroup.end(); I != E; ++I) {
+ MaxLen = std::max(MaxLen, (unsigned)I->first.size());
- // Output the option.
- OS << "static const diag::kind " << I->first->getName() << "[] = { ";
+ std::vector<const Record*> &V = I->second.DiagsInGroup;
+ if (!V.empty()) {
+ OS << "static const short DiagArray" << I->second.IDNo << "[] = { ";
+ for (unsigned i = 0, e = V.size(); i != e; ++i)
+ OS << "diag::" << V[i]->getName() << ", ";
+ OS << "-1 };\n";
+ }
- DiagnosticSet &DS = I->second;
- bool first = true;
- for (DiagnosticSet::iterator I2 = DS.begin(), E2 = DS.end(); I2!=E2; ++I2) {
- if (first)
- first = false;
- else
- OS << ", ";
-
- OS << "diag::" << (*I2)->getName();
+ const std::vector<std::string> &SubGroups = I->second.SubGroups;
+ if (!SubGroups.empty()) {
+ OS << "static const short DiagSubGroup" << I->second.IDNo << "[] = { ";
+ for (unsigned i = 0, e = SubGroups.size(); i != e; ++i) {
+ std::map<std::string, GroupInfo>::iterator RI =
+ DiagsInGroup.find(SubGroups[i]);
+ assert(RI != DiagsInGroup.end() && "Referenced without existing?");
+ OS << RI->second.IDNo << ", ";
+ }
+ OS << "-1 };\n";
}
- OS << " };\n";
}
+ OS << "#endif // GET_DIAG_ARRAYS\n\n";
+
+ // Emit the table now.
+ OS << "\n#ifdef GET_DIAG_TABLE\n";
+ for (std::map<std::string, GroupInfo>::iterator
+ I = DiagsInGroup.begin(), E = DiagsInGroup.end(); I != E; ++I) {
+ // Group option string.
+ OS << " { \"";
+ OS.write_escaped(I->first) << "\","
+ << std::string(MaxLen-I->first.size()+1, ' ');
+
+ // Diagnostics in the group.
+ if (I->second.DiagsInGroup.empty())
+ OS << "0, ";
+ else
+ OS << "DiagArray" << I->second.IDNo << ", ";
+
+ // Subgroups.
+ if (I->second.SubGroups.empty())
+ OS << 0;
+ else
+ OS << "DiagSubGroup" << I->second.IDNo;
+ OS << " },\n";
+ }
+ OS << "#endif // GET_DIAG_TABLE\n\n";
+
+ // Emit the category table next.
+ DiagCategoryIDMap CategoriesByID;
+ OS << "\n#ifdef GET_CATEGORY_TABLE\n";
+ for (DiagCategoryIDMap::iterator I = CategoriesByID.begin(),
+ E = CategoriesByID.end(); I != E; ++I)
+ OS << "CATEGORY(\"" << *I << "\")\n";
+ OS << "#endif // GET_CATEGORY_TABLE\n\n";
}
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