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llvm/clang/utils/TableGen/ClangDiagnosticsEmitter.cpp
Jordan Rose c3b23aa848 Error if an anonymous DiagGroup is referenced multiple times. 
Not only is this inefficient for TableGen, it's annoying for maintenance
when renaming warning flags (unusual) or adding those flags to a group
(more likely).

This uses the new fix-it infrastructure for LLVM's SourceMgr/SMDiagnostic,
as well as a few changes to TableGen to track more source information.

llvm-svn: 172087
2013-01-10 18:50:46 +00:00

761 lines
28 KiB
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//=- 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 "llvm/ADT/DenseSet.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/PointerUnion.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/TableGen/Error.h"
#include "llvm/TableGen/Record.h"
#include "llvm/TableGen/TableGenBackend.h"
#include <algorithm>
#include <cctype>
#include <functional>
#include <map>
#include <set>
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 = dyn_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(); }
};
struct GroupInfo {
std::vector<const Record*> DiagsInGroup;
std::vector<std::string> SubGroups;
unsigned IDNo;
const Record *ExplicitDef;
GroupInfo() : ExplicitDef(0) {}
};
} // end anonymous namespace.
static bool beforeThanCompare(const Record *LHS, const Record *RHS) {
assert(!LHS->getLoc().empty() && !RHS->getLoc().empty());
return
LHS->getLoc().front().getPointer() < RHS->getLoc().front().getPointer();
}
static bool beforeThanCompareGroups(const GroupInfo *LHS, const GroupInfo *RHS){
assert(!LHS->DiagsInGroup.empty() && !RHS->DiagsInGroup.empty());
return beforeThanCompare(LHS->DiagsInGroup.front(),
RHS->DiagsInGroup.front());
}
static SMRange findSuperClassRange(const Record *R, StringRef SuperName) {
ArrayRef<Record *> Supers = R->getSuperClasses();
for (size_t i = 0, e = Supers.size(); i < e; ++i)
if (Supers[i]->getName() == SuperName)
return R->getSuperClassRanges()[i];
return SMRange();
}
/// \brief Invert the 1-[0/1] mapping of diags to group into a one to many
/// mapping of groups to diags in the group.
static void groupDiagnostics(const std::vector<Record*> &Diags,
const std::vector<Record*> &DiagGroups,
std::map<std::string, GroupInfo> &DiagsInGroup) {
for (unsigned i = 0, e = Diags.size(); i != e; ++i) {
const Record *R = Diags[i];
DefInit *DI = dyn_cast<DefInit>(R->getValueInit("Group"));
if (DI == 0) continue;
assert(R->getValueAsDef("Class")->getName() != "CLASS_NOTE" &&
"Note can't be in a DiagGroup");
std::string GroupName = DI->getDef()->getValueAsString("GroupName");
DiagsInGroup[GroupName].DiagsInGroup.push_back(R);
}
typedef SmallPtrSet<GroupInfo *, 16> GroupSetTy;
GroupSetTy ImplicitGroups;
// 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).
for (unsigned i = 0, e = DiagGroups.size(); i != e; ++i) {
Record *Group = DiagGroups[i];
GroupInfo &GI = DiagsInGroup[Group->getValueAsString("GroupName")];
if (Group->isAnonymous()) {
if (GI.DiagsInGroup.size() > 1)
ImplicitGroups.insert(&GI);
} else {
if (GI.ExplicitDef)
assert(GI.ExplicitDef == Group);
else
GI.ExplicitDef = Group;
}
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;
// Sort the implicit groups, so we can warn about them deterministically.
SmallVector<GroupInfo *, 16> SortedGroups(ImplicitGroups.begin(),
ImplicitGroups.end());
for (SmallVectorImpl<GroupInfo *>::iterator I = SortedGroups.begin(),
E = SortedGroups.end();
I != E; ++I) {
MutableArrayRef<const Record *> GroupDiags = (*I)->DiagsInGroup;
std::sort(GroupDiags.begin(), GroupDiags.end(), beforeThanCompare);
}
std::sort(SortedGroups.begin(), SortedGroups.end(), beforeThanCompareGroups);
// Warn about the same group being used anonymously in multiple places.
for (SmallVectorImpl<GroupInfo *>::const_iterator I = SortedGroups.begin(),
E = SortedGroups.end();
I != E; ++I) {
ArrayRef<const Record *> GroupDiags = (*I)->DiagsInGroup;
if ((*I)->ExplicitDef) {
std::string Name = (*I)->ExplicitDef->getValueAsString("GroupName");
for (ArrayRef<const Record *>::const_iterator DI = GroupDiags.begin(),
DE = GroupDiags.end();
DI != DE; ++DI) {
const DefInit *GroupInit = cast<DefInit>((*DI)->getValueInit("Group"));
const Record *NextDiagGroup = GroupInit->getDef();
if (NextDiagGroup == (*I)->ExplicitDef)
continue;
SMRange InGroupRange = findSuperClassRange(*DI, "InGroup");
SmallString<64> Replacement;
if (InGroupRange.isValid()) {
Replacement += "InGroup<";
Replacement += (*I)->ExplicitDef->getName();
Replacement += ">";
}
SMFixIt FixIt(InGroupRange, Replacement.str());
SrcMgr.PrintMessage(NextDiagGroup->getLoc().front(),
SourceMgr::DK_Error,
Twine("group '") + Name +
"' is referred to anonymously",
ArrayRef<SMRange>(),
InGroupRange.isValid() ? FixIt
: ArrayRef<SMFixIt>());
SrcMgr.PrintMessage((*I)->ExplicitDef->getLoc().front(),
SourceMgr::DK_Note, "group defined here");
}
} else {
// If there's no existing named group, we should just warn once and use
// notes to list all the other cases.
ArrayRef<const Record *>::const_iterator DI = GroupDiags.begin(),
DE = GroupDiags.end();
assert(DI != DE && "We only care about groups with multiple uses!");
const DefInit *GroupInit = cast<DefInit>((*DI)->getValueInit("Group"));
const Record *NextDiagGroup = GroupInit->getDef();
std::string Name = NextDiagGroup->getValueAsString("GroupName");
SMRange InGroupRange = findSuperClassRange(*DI, "InGroup");
SrcMgr.PrintMessage(NextDiagGroup->getLoc().front(),
SourceMgr::DK_Error,
Twine("group '") + Name +
"' is referred to anonymously",
InGroupRange);
for (++DI; DI != DE; ++DI) {
GroupInit = cast<DefInit>((*DI)->getValueInit("Group"));
InGroupRange = findSuperClassRange(*DI, "InGroup");
SrcMgr.PrintMessage(GroupInit->getDef()->getLoc().front(),
SourceMgr::DK_Note, "also referenced here",
InGroupRange);
}
}
}
}
//===----------------------------------------------------------------------===//
// Infer members of -Wpedantic.
//===----------------------------------------------------------------------===//
typedef std::vector<const Record *> RecordVec;
typedef llvm::DenseSet<const Record *> RecordSet;
typedef llvm::PointerUnion<RecordVec*, RecordSet*> VecOrSet;
namespace {
class InferPedantic {
typedef llvm::DenseMap<const Record*,
std::pair<unsigned, llvm::Optional<unsigned> > > GMap;
DiagGroupParentMap &DiagGroupParents;
const std::vector<Record*> &Diags;
const std::vector<Record*> DiagGroups;
std::map<std::string, GroupInfo> &DiagsInGroup;
llvm::DenseSet<const Record*> DiagsSet;
GMap GroupCount;
public:
InferPedantic(DiagGroupParentMap &DiagGroupParents,
const std::vector<Record*> &Diags,
const std::vector<Record*> &DiagGroups,
std::map<std::string, GroupInfo> &DiagsInGroup)
: DiagGroupParents(DiagGroupParents),
Diags(Diags),
DiagGroups(DiagGroups),
DiagsInGroup(DiagsInGroup) {}
/// Compute the set of diagnostics and groups that are immediately
/// in -Wpedantic.
void compute(VecOrSet DiagsInPedantic,
VecOrSet GroupsInPedantic);
private:
/// Determine whether a group is a subgroup of another group.
bool isSubGroupOfGroup(const Record *Group,
llvm::StringRef RootGroupName);
/// Determine if the diagnostic is an extension.
bool isExtension(const Record *Diag);
/// Determine if the diagnostic is off by default.
bool isOffByDefault(const Record *Diag);
/// Increment the count for a group, and transitively marked
/// parent groups when appropriate.
void markGroup(const Record *Group);
/// Return true if the diagnostic is in a pedantic group.
bool groupInPedantic(const Record *Group, bool increment = false);
};
} // end anonymous namespace
bool InferPedantic::isSubGroupOfGroup(const Record *Group,
llvm::StringRef GName) {
const std::string &GroupName = Group->getValueAsString("GroupName");
if (GName == GroupName)
return true;
const std::vector<Record*> &Parents = DiagGroupParents.getParents(Group);
for (unsigned i = 0, e = Parents.size(); i != e; ++i)
if (isSubGroupOfGroup(Parents[i], GName))
return true;
return false;
}
/// Determine if the diagnostic is an extension.
bool InferPedantic::isExtension(const Record *Diag) {
const std::string &ClsName = Diag->getValueAsDef("Class")->getName();
return ClsName == "CLASS_EXTENSION";
}
bool InferPedantic::isOffByDefault(const Record *Diag) {
const std::string &DefMap = Diag->getValueAsDef("DefaultMapping")->getName();
return DefMap == "MAP_IGNORE";
}
bool InferPedantic::groupInPedantic(const Record *Group, bool increment) {
GMap::mapped_type &V = GroupCount[Group];
// Lazily compute the threshold value for the group count.
if (!V.second.hasValue()) {
const GroupInfo &GI = DiagsInGroup[Group->getValueAsString("GroupName")];
V.second = GI.SubGroups.size() + GI.DiagsInGroup.size();
}
if (increment)
++V.first;
// Consider a group in -Wpendatic IFF if has at least one diagnostic
// or subgroup AND all of those diagnostics and subgroups are covered
// by -Wpedantic via our computation.
return V.first != 0 && V.first == V.second.getValue();
}
void InferPedantic::markGroup(const Record *Group) {
// If all the diagnostics and subgroups have been marked as being
// covered by -Wpedantic, increment the count of parent groups. Once the
// group's count is equal to the number of subgroups and diagnostics in
// that group, we can safely add this group to -Wpedantic.
if (groupInPedantic(Group, /* increment */ true)) {
const std::vector<Record*> &Parents = DiagGroupParents.getParents(Group);
for (unsigned i = 0, e = Parents.size(); i != e; ++i)
markGroup(Parents[i]);
}
}
void InferPedantic::compute(VecOrSet DiagsInPedantic,
VecOrSet GroupsInPedantic) {
// All extensions that are not on by default are implicitly in the
// "pedantic" group. For those that aren't explicitly included in -Wpedantic,
// mark them for consideration to be included in -Wpedantic directly.
for (unsigned i = 0, e = Diags.size(); i != e; ++i) {
Record *R = Diags[i];
if (isExtension(R) && isOffByDefault(R)) {
DiagsSet.insert(R);
if (DefInit *Group = dyn_cast<DefInit>(R->getValueInit("Group"))) {
const Record *GroupRec = Group->getDef();
if (!isSubGroupOfGroup(GroupRec, "pedantic")) {
markGroup(GroupRec);
}
}
}
}
// Compute the set of diagnostics that are directly in -Wpedantic. We
// march through Diags a second time to ensure the results are emitted
// in deterministic order.
for (unsigned i = 0, e = Diags.size(); i != e; ++i) {
Record *R = Diags[i];
if (!DiagsSet.count(R))
continue;
// Check if the group is implicitly in -Wpedantic. If so,
// the diagnostic should not be directly included in the -Wpedantic
// diagnostic group.
if (DefInit *Group = dyn_cast<DefInit>(R->getValueInit("Group")))
if (groupInPedantic(Group->getDef()))
continue;
// The diagnostic is not included in a group that is (transitively) in
// -Wpedantic. Include it in -Wpedantic directly.
if (RecordVec *V = DiagsInPedantic.dyn_cast<RecordVec*>())
V->push_back(R);
else {
DiagsInPedantic.get<RecordSet*>()->insert(R);
}
}
if (!GroupsInPedantic)
return;
// Compute the set of groups that are directly in -Wpedantic. We
// march through the groups to ensure the results are emitted
/// in a deterministc order.
for (unsigned i = 0, ei = DiagGroups.size(); i != ei; ++i) {
Record *Group = DiagGroups[i];
if (!groupInPedantic(Group))
continue;
unsigned ParentsInPedantic = 0;
const std::vector<Record*> &Parents = DiagGroupParents.getParents(Group);
for (unsigned j = 0, ej = Parents.size(); j != ej; ++j) {
if (groupInPedantic(Parents[j]))
++ParentsInPedantic;
}
// If all the parents are in -Wpedantic, this means that this diagnostic
// group will be indirectly included by -Wpedantic already. In that
// case, do not add it directly to -Wpedantic. If the group has no
// parents, obviously it should go into -Wpedantic.
if (Parents.size() > 0 && ParentsInPedantic == Parents.size())
continue;
if (RecordVec *V = GroupsInPedantic.dyn_cast<RecordVec*>())
V->push_back(Group);
else {
GroupsInPedantic.get<RecordSet*>()->insert(Group);
}
}
}
//===----------------------------------------------------------------------===//
// Warning Tables (.inc file) generation.
//===----------------------------------------------------------------------===//
static bool isError(const Record &Diag) {
const std::string &ClsName = Diag.getValueAsDef("Class")->getName();
return ClsName == "CLASS_ERROR";
}
/// ClangDiagsDefsEmitter - The top-level class emits .def files containing
/// declarations of Clang diagnostics.
namespace clang {
void EmitClangDiagsDefs(RecordKeeper &Records, raw_ostream &OS,
const std::string &Component) {
// Write the #if guard
if (!Component.empty()) {
std::string ComponentName = StringRef(Component).upper();
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");
std::vector<Record*> DiagGroups
= Records.getAllDerivedDefinitions("DiagGroup");
std::map<std::string, GroupInfo> DiagsInGroup;
groupDiagnostics(Diags, DiagGroups, DiagsInGroup);
DiagCategoryIDMap CategoryIDs(Records);
DiagGroupParentMap DGParentMap(Records);
// Compute the set of diagnostics that are in -Wpedantic.
RecordSet DiagsInPedantic;
InferPedantic inferPedantic(DGParentMap, Diags, DiagGroups, DiagsInGroup);
inferPedantic.compute(&DiagsInPedantic, (RecordVec*)0);
for (unsigned i = 0, e = Diags.size(); i != e; ++i) {
const Record &R = *Diags[i];
// Check if this is an error that is accidentally in a warning
// group.
if (isError(R)) {
if (DefInit *Group = dyn_cast<DefInit>(R.getValueInit("Group"))) {
const Record *GroupRec = Group->getDef();
const std::string &GroupName = GroupRec->getValueAsString("GroupName");
PrintFatalError(R.getLoc(), "Error " + R.getName() +
" cannot be in a warning group [" + GroupName + "]");
}
}
// 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. This is stored as an index into
// the alphabetically sorted warning table.
if (DefInit *DI = dyn_cast<DefInit>(R.getValueInit("Group"))) {
std::map<std::string, GroupInfo>::iterator I =
DiagsInGroup.find(DI->getDef()->getValueAsString("GroupName"));
assert(I != DiagsInGroup.end());
OS << ", " << I->second.IDNo;
} else if (DiagsInPedantic.count(&R)) {
std::map<std::string, GroupInfo>::iterator I =
DiagsInGroup.find("pedantic");
assert(I != DiagsInGroup.end() && "pedantic group not defined");
OS << ", " << I->second.IDNo;
} else {
OS << ", 0";
}
// 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));
OS << ")\n";
}
}
} // end namespace clang
//===----------------------------------------------------------------------===//
// Warning Group Tables generation
//===----------------------------------------------------------------------===//
static std::string getDiagCategoryEnum(llvm::StringRef name) {
if (name.empty())
return "DiagCat_None";
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 clang {
void EmitClangDiagGroups(RecordKeeper &Records, raw_ostream &OS) {
// Compute a mapping from a DiagGroup to all of its parents.
DiagGroupParentMap DGParentMap(Records);
std::vector<Record*> Diags =
Records.getAllDerivedDefinitions("Diagnostic");
std::vector<Record*> DiagGroups
= Records.getAllDerivedDefinitions("DiagGroup");
std::map<std::string, GroupInfo> DiagsInGroup;
groupDiagnostics(Diags, DiagGroups, DiagsInGroup);
// All extensions are implicitly in the "pedantic" group. Record the
// implicit set of groups in the "pedantic" group, and use this information
// later when emitting the group information for Pedantic.
RecordVec DiagsInPedantic;
RecordVec GroupsInPedantic;
InferPedantic inferPedantic(DGParentMap, Diags, DiagGroups, DiagsInGroup);
inferPedantic.compute(&DiagsInPedantic, &GroupsInPedantic);
// 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());
const bool IsPedantic = I->first == "pedantic";
std::vector<const Record*> &V = I->second.DiagsInGroup;
if (!V.empty() || (IsPedantic && !DiagsInPedantic.empty())) {
OS << "static const short DiagArray" << I->second.IDNo << "[] = { ";
for (unsigned i = 0, e = V.size(); i != e; ++i)
OS << "diag::" << V[i]->getName() << ", ";
// Emit the diagnostics implicitly in "pedantic".
if (IsPedantic) {
for (unsigned i = 0, e = DiagsInPedantic.size(); i != e; ++i)
OS << "diag::" << DiagsInPedantic[i]->getName() << ", ";
}
OS << "-1 };\n";
}
const std::vector<std::string> &SubGroups = I->second.SubGroups;
if (!SubGroups.empty() || (IsPedantic && !GroupsInPedantic.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 << ", ";
}
// Emit the groups implicitly in "pedantic".
if (IsPedantic) {
for (unsigned i = 0, e = GroupsInPedantic.size(); i != e; ++i) {
const std::string &GroupName =
GroupsInPedantic[i]->getValueAsString("GroupName");
std::map<std::string, GroupInfo>::iterator RI =
DiagsInGroup.find(GroupName);
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 << "\"";
if (I->first.find_first_not_of("abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"0123456789!@#$%^*-+=:?")!=std::string::npos)
PrintFatalError("Invalid character in diagnostic group '" +
I->first + "'");
OS.write_escaped(I->first) << "\","
<< std::string(MaxLen-I->first.size()+1, ' ');
// Special handling for 'pedantic'.
const bool IsPedantic = I->first == "pedantic";
// Diagnostics in the group.
const bool hasDiags = !I->second.DiagsInGroup.empty() ||
(IsPedantic && !DiagsInPedantic.empty());
if (!hasDiags)
OS << "0, ";
else
OS << "DiagArray" << I->second.IDNo << ", ";
// Subgroups.
const bool hasSubGroups = !I->second.SubGroups.empty() ||
(IsPedantic && !GroupsInPedantic.empty());
if (!hasSubGroups)
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";
}
} // end namespace clang
//===----------------------------------------------------------------------===//
// 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.
namespace clang {
void EmitClangDiagsIndexName(RecordKeeper &Records, 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";
}
}
} // end namespace clang
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