+++ /dev/null
-//=- ClangDiagnosticsEmitter.cpp - Generate Clang diagnostics tables -*- C++ -*-
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// These tablegen backends emit Clang diagnostics tables.
-//
-//===----------------------------------------------------------------------===//
-
-#include "ClangDiagnosticsEmitter.h"
-#include "llvm/TableGen/Record.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/ADT/DenseSet.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/StringMap.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/VectorExtras.h"
-#include <map>
-#include <algorithm>
-#include <functional>
-using namespace llvm;
-
-//===----------------------------------------------------------------------===//
-// Diagnostic category computation code.
-//===----------------------------------------------------------------------===//
-
-namespace {
-class DiagGroupParentMap {
- RecordKeeper &Records;
- std::map<const Record*, std::vector<Record*> > Mapping;
-public:
- DiagGroupParentMap(RecordKeeper &records) : Records(records) {
- 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 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;
-
- // 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 "";
-}
-
-/// 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;
- }
-
- // If the diagnostic itself has a category, get it.
- return R->getValueAsString("CategoryName");
-}
-
-namespace {
- class DiagCategoryIDMap {
- RecordKeeper &Records;
- StringMap<unsigned> CategoryIDs;
- std::vector<std::string> CategoryStrings;
- public:
- DiagCategoryIDMap(RecordKeeper &records) : Records(records) {
- DiagGroupParentMap ParentInfo(Records);
-
- // 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.
-
-
-//===----------------------------------------------------------------------===//
-// Warning Tables (.inc file) generation.
-//===----------------------------------------------------------------------===//
-
-void ClangDiagsDefsEmitter::run(raw_ostream &OS) {
- // Write the #if guard
- if (!Component.empty()) {
- 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");
-
- DiagCategoryIDMap CategoryIDs(Records);
- DiagGroupParentMap DGParentMap(Records);
-
- 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 << ", \"\"";
- }
-
- // SFINAE bit
- if (R.getValueAsBit("SFINAE"))
- OS << ", true";
- else
- OS << ", false";
-
- // Access control bit
- if (R.getValueAsBit("AccessControl"))
- OS << ", true";
- else
- OS << ", false";
-
- // FIXME: This condition is just to avoid temporary revlock, it can be
- // removed.
- if (R.getValue("WarningNoWerror")) {
- // Default warning has no Werror bit.
- if (R.getValueAsBit("WarningNoWerror"))
- OS << ", true";
- else
- OS << ", false";
-
- // Default warning show in system header bit.
- if (R.getValueAsBit("WarningShowInSystemHeader"))
- OS << ", true";
- else
- OS << ", false";
- }
-
- // Category number.
- OS << ", " << CategoryIDs.getID(getDiagnosticCategory(&R, DGParentMap));
-
- // Brief
- OS << ", \"";
- OS.write_escaped(R.getValueAsString("Brief")) << '"';
-
- // Explanation
- OS << ", \"";
- OS.write_escaped(R.getValueAsString("Explanation")) << '"';
- OS << ")\n";
- }
-}
-
-//===----------------------------------------------------------------------===//
-// Warning Group Tables generation
-//===----------------------------------------------------------------------===//
-
-static std::string getDiagCategoryEnum(llvm::StringRef name) {
- if (name.empty())
- return "DiagCat_None";
- llvm::SmallString<256> enumName = llvm::StringRef("DiagCat_");
- for (llvm::StringRef::iterator I = name.begin(), E = name.end(); I != E; ++I)
- enumName += isalnum(*I) ? *I : '_';
- return enumName.str();
-}
-
-namespace {
-struct GroupInfo {
- std::vector<const Record*> DiagsInGroup;
- std::vector<std::string> SubGroups;
- unsigned IDNo;
-};
-} // end anonymous namespace.
-
-void ClangDiagGroupsEmitter::run(raw_ostream &OS) {
- // Compute a mapping from a DiagGroup to all of its parents.
- DiagGroupParentMap DGParentMap(Records);
-
- // 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;
-
- 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);
- }
-
- // 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"));
- }
-
- // 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;
-
- // 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());
-
- 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";
- }
-
- 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 << "#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 << I->first.size() << ", ";
- 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(Records);
- OS << "\n#ifdef GET_CATEGORY_TABLE\n";
- for (DiagCategoryIDMap::iterator I = CategoriesByID.begin(),
- E = CategoriesByID.end(); I != E; ++I)
- OS << "CATEGORY(\"" << *I << "\", " << getDiagCategoryEnum(*I) << ")\n";
- OS << "#endif // GET_CATEGORY_TABLE\n\n";
-}
-
-//===----------------------------------------------------------------------===//
-// Diagnostic name index generation
-//===----------------------------------------------------------------------===//
-
-namespace {
-struct RecordIndexElement
-{
- RecordIndexElement() {}
- explicit RecordIndexElement(Record const &R):
- Name(R.getName()) {}
-
- std::string Name;
-};
-
-struct RecordIndexElementSorter :
- public std::binary_function<RecordIndexElement, RecordIndexElement, bool> {
-
- bool operator()(RecordIndexElement const &Lhs,
- RecordIndexElement const &Rhs) const {
- return Lhs.Name < Rhs.Name;
- }
-
-};
-
-} // end anonymous namespace.
-
-void ClangDiagsIndexNameEmitter::run(raw_ostream &OS) {
- const std::vector<Record*> &Diags =
- Records.getAllDerivedDefinitions("Diagnostic");
-
- std::vector<RecordIndexElement> Index;
- Index.reserve(Diags.size());
- for (unsigned i = 0, e = Diags.size(); i != e; ++i) {
- const Record &R = *(Diags[i]);
- Index.push_back(RecordIndexElement(R));
- }
-
- std::sort(Index.begin(), Index.end(), RecordIndexElementSorter());
-
- for (unsigned i = 0, e = Index.size(); i != e; ++i) {
- const RecordIndexElement &R = Index[i];
-
- OS << "DIAG_NAME_INDEX(" << R.Name << ")\n";
- }
-}
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