bool HasNameMatcher::matchesNodeUnqualified(const NamedDecl &Node) const {
assert(UseUnqualifiedMatch);
if (Node.getIdentifier()) {
// Simple name.
return Name == Node.getName();
}
if (Node.getDeclName()) {
// Name needs to be constructed.
llvm::SmallString<128> NodeName;
llvm::raw_svector_ostream OS(NodeName);
Node.printName(OS);
return Name == OS.str();
}
return false;
}
bool Sema::CheckParameterPacksForExpansion(
SourceLocation EllipsisLoc, SourceRange PatternRange,
ArrayRef<UnexpandedParameterPack> Unexpanded,
const MultiLevelTemplateArgumentList &TemplateArgs, bool &ShouldExpand,
bool &RetainExpansion, Optional<unsigned> &NumExpansions) {
ShouldExpand = true;
RetainExpansion = false;
std::pair<IdentifierInfo *, SourceLocation> FirstPack;
bool HaveFirstPack = false;
for (ArrayRef<UnexpandedParameterPack>::iterator i = Unexpanded.begin(),
end = Unexpanded.end();
i != end; ++i) {
// Compute the depth and index for this parameter pack.
unsigned Depth = 0, Index = 0;
IdentifierInfo *Name;
bool IsFunctionParameterPack = false;
if (const TemplateTypeParmType *TTP
= i->first.dyn_cast<const TemplateTypeParmType *>()) {
Depth = TTP->getDepth();
Index = TTP->getIndex();
Name = TTP->getIdentifier();
} else {
NamedDecl *ND = i->first.get<NamedDecl *>();
if (isa<ParmVarDecl>(ND))
IsFunctionParameterPack = true;
else
std::tie(Depth, Index) = getDepthAndIndex(ND);
Name = ND->getIdentifier();
}
// Determine the size of this argument pack.
unsigned NewPackSize;
if (IsFunctionParameterPack) {
// Figure out whether we're instantiating to an argument pack or not.
typedef LocalInstantiationScope::DeclArgumentPack DeclArgumentPack;
llvm::PointerUnion<Decl *, DeclArgumentPack *> *Instantiation
= CurrentInstantiationScope->findInstantiationOf(
i->first.get<NamedDecl *>());
if (Instantiation->is<DeclArgumentPack *>()) {
// We could expand this function parameter pack.
NewPackSize = Instantiation->get<DeclArgumentPack *>()->size();
} else {
// We can't expand this function parameter pack, so we can't expand
// the pack expansion.
ShouldExpand = false;
continue;
}
} else {
// If we don't have a template argument at this depth/index, then we
// cannot expand the pack expansion. Make a note of this, but we still
// want to check any parameter packs we *do* have arguments for.
if (Depth >= TemplateArgs.getNumLevels() ||
!TemplateArgs.hasTemplateArgument(Depth, Index)) {
ShouldExpand = false;
continue;
}
// Determine the size of the argument pack.
NewPackSize = TemplateArgs(Depth, Index).pack_size();
}
// C++0x [temp.arg.explicit]p9:
// Template argument deduction can extend the sequence of template
// arguments corresponding to a template parameter pack, even when the
// sequence contains explicitly specified template arguments.
if (!IsFunctionParameterPack) {
if (NamedDecl *PartialPack
= CurrentInstantiationScope->getPartiallySubstitutedPack()){
unsigned PartialDepth, PartialIndex;
std::tie(PartialDepth, PartialIndex) = getDepthAndIndex(PartialPack);
if (PartialDepth == Depth && PartialIndex == Index)
RetainExpansion = true;
}
}
if (!NumExpansions) {
// The is the first pack we've seen for which we have an argument.
// Record it.
NumExpansions = NewPackSize;
FirstPack.first = Name;
FirstPack.second = i->second;
HaveFirstPack = true;
continue;
}
if (NewPackSize != *NumExpansions) {
// C++0x [temp.variadic]p5:
// All of the parameter packs expanded by a pack expansion shall have
// the same number of arguments specified.
if (HaveFirstPack)
Diag(EllipsisLoc, diag::err_pack_expansion_length_conflict)
<< FirstPack.first << Name << *NumExpansions << NewPackSize
<< SourceRange(FirstPack.second) << SourceRange(i->second);
else
Diag(EllipsisLoc, diag::err_pack_expansion_length_conflict_multilevel)
<< Name << *NumExpansions << NewPackSize
<< SourceRange(i->second);
return true;
}
}
return false;
}
StringRef CodeCompletionTUInfo::getParentName(DeclContext *DC) {
NamedDecl *ND = dyn_cast<NamedDecl>(DC);
if (!ND)
return StringRef();
// Check whether we've already cached the parent name.
StringRef &CachedParentName = ParentNames[DC];
if (!CachedParentName.empty())
return CachedParentName;
// If we already processed this DeclContext and assigned empty to it, the
// data pointer will be non-null.
if (CachedParentName.data() != 0)
return StringRef();
// Find the interesting names.
llvm::SmallVector<DeclContext *, 2> Contexts;
while (DC && !DC->isFunctionOrMethod()) {
if (NamedDecl *ND = dyn_cast<NamedDecl>(DC)) {
if (ND->getIdentifier())
Contexts.push_back(DC);
}
DC = DC->getParent();
}
{
llvm::SmallString<128> S;
llvm::raw_svector_ostream OS(S);
bool First = true;
for (unsigned I = Contexts.size(); I != 0; --I) {
if (First)
First = false;
else {
OS << "::";
}
DeclContext *CurDC = Contexts[I-1];
if (ObjCCategoryImplDecl *CatImpl = dyn_cast<ObjCCategoryImplDecl>(CurDC))
CurDC = CatImpl->getCategoryDecl();
if (ObjCCategoryDecl *Cat = dyn_cast<ObjCCategoryDecl>(CurDC)) {
ObjCInterfaceDecl *Interface = Cat->getClassInterface();
if (!Interface) {
// Assign an empty StringRef but with non-null data to distinguish
// between empty because we didn't process the DeclContext yet.
CachedParentName = StringRef((const char *)~0U, 0);
return StringRef();
}
OS << Interface->getName() << '(' << Cat->getName() << ')';
} else {
OS << cast<NamedDecl>(CurDC)->getName();
}
}
CachedParentName = AllocatorRef->CopyString(OS.str());
}
return CachedParentName;
}
StmtResult Sema::ActOnMSAsmStmt(SourceLocation AsmLoc, SourceLocation LBraceLoc,
ArrayRef<Token> AsmToks,SourceLocation EndLoc) {
SmallVector<IdentifierInfo*, 4> Names;
SmallVector<StringRef, 4> ConstraintRefs;
SmallVector<Expr*, 4> Exprs;
SmallVector<StringRef, 4> ClobberRefs;
llvm::Triple TheTriple = Context.getTargetInfo().getTriple();
llvm::Triple::ArchType ArchTy = TheTriple.getArch();
bool UnsupportedArch = ArchTy != llvm::Triple::x86 &&
ArchTy != llvm::Triple::x86_64;
if (UnsupportedArch)
Diag(AsmLoc, diag::err_msasm_unsupported_arch) << TheTriple.getArchName();
// Empty asm statements don't need to instantiate the AsmParser, etc.
if (UnsupportedArch || AsmToks.empty()) {
StringRef EmptyAsmStr;
MSAsmStmt *NS =
new (Context) MSAsmStmt(Context, AsmLoc, LBraceLoc, /*IsSimple*/ true,
/*IsVolatile*/ true, AsmToks, /*NumOutputs*/ 0,
/*NumInputs*/ 0, Names, ConstraintRefs, Exprs,
EmptyAsmStr, ClobberRefs, EndLoc);
return Owned(NS);
}
std::string AsmString;
SmallVector<unsigned, 8> TokOffsets;
if (buildMSAsmString(*this, AsmLoc, AsmToks, TokOffsets, AsmString))
return StmtError();
// Get the target specific parser.
std::string Error;
const std::string &TT = TheTriple.getTriple();
const llvm::Target *TheTarget(llvm::TargetRegistry::lookupTarget(TT, Error));
OwningPtr<llvm::MCAsmInfo> MAI(TheTarget->createMCAsmInfo(TT));
OwningPtr<llvm::MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TT));
OwningPtr<llvm::MCObjectFileInfo> MOFI(new llvm::MCObjectFileInfo());
OwningPtr<llvm::MCSubtargetInfo>
STI(TheTarget->createMCSubtargetInfo(TT, "", ""));
llvm::SourceMgr SrcMgr;
llvm::MCContext Ctx(*MAI, *MRI, MOFI.get(), &SrcMgr);
llvm::MemoryBuffer *Buffer =
llvm::MemoryBuffer::getMemBuffer(AsmString, "<MS inline asm>");
// Tell SrcMgr about this buffer, which is what the parser will pick up.
SrcMgr.AddNewSourceBuffer(Buffer, llvm::SMLoc());
OwningPtr<llvm::MCStreamer> Str(createNullStreamer(Ctx));
OwningPtr<llvm::MCAsmParser>
Parser(createMCAsmParser(SrcMgr, Ctx, *Str.get(), *MAI));
OwningPtr<llvm::MCTargetAsmParser>
TargetParser(TheTarget->createMCAsmParser(*STI, *Parser));
// Get the instruction descriptor.
const llvm::MCInstrInfo *MII = TheTarget->createMCInstrInfo();
llvm::MCInstPrinter *IP =
TheTarget->createMCInstPrinter(1, *MAI, *MII, *MRI, *STI);
// Change to the Intel dialect.
Parser->setAssemblerDialect(1);
Parser->setTargetParser(*TargetParser.get());
Parser->setParsingInlineAsm(true);
TargetParser->setParsingInlineAsm(true);
MCAsmParserSemaCallbackImpl MCAPSI(*this, AsmLoc, AsmToks, TokOffsets);
TargetParser->setSemaCallback(&MCAPSI);
SrcMgr.setDiagHandler(MCAsmParserSemaCallbackImpl::MSAsmDiagHandlerCallback,
&MCAPSI);
unsigned NumOutputs;
unsigned NumInputs;
std::string AsmStringIR;
SmallVector<std::pair<void *, bool>, 4> OpDecls;
SmallVector<std::string, 4> Constraints;
SmallVector<std::string, 4> Clobbers;
if (Parser->parseMSInlineAsm(AsmLoc.getPtrEncoding(), AsmStringIR,
NumOutputs, NumInputs, OpDecls, Constraints,
Clobbers, MII, IP, MCAPSI))
return StmtError();
// Build the vector of clobber StringRefs.
unsigned NumClobbers = Clobbers.size();
ClobberRefs.resize(NumClobbers);
for (unsigned i = 0; i != NumClobbers; ++i)
ClobberRefs[i] = StringRef(Clobbers[i]);
// Recast the void pointers and build the vector of constraint StringRefs.
unsigned NumExprs = NumOutputs + NumInputs;
Names.resize(NumExprs);
ConstraintRefs.resize(NumExprs);
Exprs.resize(NumExprs);
for (unsigned i = 0, e = NumExprs; i != e; ++i) {
NamedDecl *OpDecl = static_cast<NamedDecl *>(OpDecls[i].first);
if (!OpDecl)
return StmtError();
DeclarationNameInfo NameInfo(OpDecl->getDeclName(), AsmLoc);
ExprResult OpExpr = BuildDeclarationNameExpr(CXXScopeSpec(), NameInfo,
OpDecl);
if (OpExpr.isInvalid())
return StmtError();
// Need address of variable.
if (OpDecls[i].second)
OpExpr = BuildUnaryOp(getCurScope(), AsmLoc, clang::UO_AddrOf,
OpExpr.take());
Names[i] = OpDecl->getIdentifier();
ConstraintRefs[i] = StringRef(Constraints[i]);
Exprs[i] = OpExpr.take();
}
bool IsSimple = NumExprs > 0;
MSAsmStmt *NS =
new (Context) MSAsmStmt(Context, AsmLoc, LBraceLoc, IsSimple,
/*IsVolatile*/ true, AsmToks, NumOutputs, NumInputs,
Names, ConstraintRefs, Exprs, AsmStringIR,
ClobberRefs, EndLoc);
return Owned(NS);
}
void CodeCompletionBuilder::addParentContext(DeclContext *DC) {
if (DC->isTranslationUnit()) {
ParentKind = CXCursor_TranslationUnit;
return;
}
if (DC->isFunctionOrMethod())
return;
NamedDecl *ND = dyn_cast<NamedDecl>(DC);
if (!ND)
return;
ParentKind = getCursorKindForDecl(ND);
// Check whether we've already cached the parent name.
StringRef &CachedParentName = Allocator.getParentNames()[DC];
if (!CachedParentName.empty()) {
ParentName = CachedParentName;
return;
}
// Find the interesting names.
llvm::SmallVector<DeclContext *, 2> Contexts;
while (DC && !DC->isFunctionOrMethod()) {
if (NamedDecl *ND = dyn_cast<NamedDecl>(DC)) {
if (ND->getIdentifier())
Contexts.push_back(DC);
}
DC = DC->getParent();
}
{
llvm::SmallString<128> S;
llvm::raw_svector_ostream OS(S);
bool First = true;
for (unsigned I = Contexts.size(); I != 0; --I) {
if (First)
First = false;
else {
OS << "::";
}
DeclContext *CurDC = Contexts[I-1];
if (ObjCCategoryImplDecl *CatImpl = dyn_cast<ObjCCategoryImplDecl>(CurDC))
CurDC = CatImpl->getCategoryDecl();
if (ObjCCategoryDecl *Cat = dyn_cast<ObjCCategoryDecl>(CurDC)) {
ObjCInterfaceDecl *Interface = Cat->getClassInterface();
if (!Interface)
return;
OS << Interface->getName() << '(' << Cat->getName() << ')';
} else {
OS << cast<NamedDecl>(CurDC)->getName();
}
}
ParentName = Allocator.CopyString(OS.str());
CachedParentName = ParentName;
}
}
