//
//===----------------------------------------------------------------------===//
-#include "llvm/Support/raw_ostream.h"
-#include "clang/AST/TypeLocVisitor.h"
+#include "clang/AST/TypeLoc.h"
+#include "clang/AST/ASTContext.h"
#include "clang/AST/Expr.h"
+#include "clang/AST/TypeLocVisitor.h"
#include "llvm/Support/ErrorHandling.h"
using namespace clang;
+static const unsigned TypeLocMaxDataAlign = alignof(void *);
+
//===----------------------------------------------------------------------===//
// TypeLoc Implementation
//===----------------------------------------------------------------------===//
return TypeLocRanger().Visit(TL);
}
+namespace {
+ class TypeAligner : public TypeLocVisitor<TypeAligner, unsigned> {
+ public:
+#define ABSTRACT_TYPELOC(CLASS, PARENT)
+#define TYPELOC(CLASS, PARENT) \
+ unsigned Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc) { \
+ return TyLoc.getLocalDataAlignment(); \
+ }
+#include "clang/AST/TypeLocNodes.def"
+ };
+}
+
+/// \brief Returns the alignment of the type source info data block.
+unsigned TypeLoc::getLocalAlignmentForType(QualType Ty) {
+ if (Ty.isNull()) return 1;
+ return TypeAligner().Visit(TypeLoc(Ty, nullptr));
+}
+
namespace {
class TypeSizer : public TypeLocVisitor<TypeSizer, unsigned> {
public:
#define ABSTRACT_TYPELOC(CLASS, PARENT)
#define TYPELOC(CLASS, PARENT) \
unsigned Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc) { \
- return TyLoc.getFullDataSize(); \
+ return TyLoc.getLocalDataSize(); \
}
#include "clang/AST/TypeLocNodes.def"
};
/// \brief Returns the size of the type source info data block.
unsigned TypeLoc::getFullDataSizeForType(QualType Ty) {
- if (Ty.isNull()) return 0;
- return TypeSizer().Visit(TypeLoc(Ty, 0));
+ unsigned Total = 0;
+ TypeLoc TyLoc(Ty, nullptr);
+ unsigned MaxAlign = 1;
+ while (!TyLoc.isNull()) {
+ unsigned Align = getLocalAlignmentForType(TyLoc.getType());
+ MaxAlign = std::max(Align, MaxAlign);
+ Total = llvm::alignTo(Total, Align);
+ Total += TypeSizer().Visit(TyLoc);
+ TyLoc = TyLoc.getNextTypeLoc();
+ }
+ Total = llvm::alignTo(Total, MaxAlign);
+ return Total;
}
namespace {
#define ABSTRACT_TYPELOC(CLASS, PARENT)
#define TYPELOC(CLASS, PARENT) \
case CLASS: { \
- CLASS##TypeLoc TLCasted = cast<CLASS##TypeLoc>(TL); \
+ CLASS##TypeLoc TLCasted = TL.castAs<CLASS##TypeLoc>(); \
TLCasted.initializeLocal(Context, Loc); \
TL = TLCasted.getNextTypeLoc(); \
if (!TL) return; \
}
}
+namespace {
+ class TypeLocCopier : public TypeLocVisitor<TypeLocCopier> {
+ TypeLoc Source;
+ public:
+ TypeLocCopier(TypeLoc source) : Source(source) { }
+
+#define ABSTRACT_TYPELOC(CLASS, PARENT)
+#define TYPELOC(CLASS, PARENT) \
+ void Visit##CLASS##TypeLoc(CLASS##TypeLoc dest) { \
+ dest.copyLocal(Source.castAs<CLASS##TypeLoc>()); \
+ }
+#include "clang/AST/TypeLocNodes.def"
+ };
+}
+
+
+void TypeLoc::copy(TypeLoc other) {
+ assert(getFullDataSize() == other.getFullDataSize());
+
+ // If both data pointers are aligned to the maximum alignment, we
+ // can memcpy because getFullDataSize() accurately reflects the
+ // layout of the data.
+ if (reinterpret_cast<uintptr_t>(Data) ==
+ llvm::alignTo(reinterpret_cast<uintptr_t>(Data),
+ TypeLocMaxDataAlign) &&
+ reinterpret_cast<uintptr_t>(other.Data) ==
+ llvm::alignTo(reinterpret_cast<uintptr_t>(other.Data),
+ TypeLocMaxDataAlign)) {
+ memcpy(Data, other.Data, getFullDataSize());
+ return;
+ }
+
+ // Copy each of the pieces.
+ TypeLoc TL(getType(), Data);
+ do {
+ TypeLocCopier(other).Visit(TL);
+ other = other.getNextTypeLoc();
+ } while ((TL = TL.getNextTypeLoc()));
+}
+
SourceLocation TypeLoc::getBeginLoc() const {
TypeLoc Cur = *this;
+ TypeLoc LeftMost = Cur;
while (true) {
switch (Cur.getTypeLocClass()) {
- // FIXME: Currently QualifiedTypeLoc does not have a source range
- // case Qualified:
case Elaborated:
- case DependentName:
- case DependentTemplateSpecialization:
+ LeftMost = Cur;
break;
+ case FunctionProto:
+ if (Cur.castAs<FunctionProtoTypeLoc>().getTypePtr()
+ ->hasTrailingReturn()) {
+ LeftMost = Cur;
+ break;
+ }
+ /* Fall through */
+ case FunctionNoProto:
+ case ConstantArray:
+ case DependentSizedArray:
+ case IncompleteArray:
+ case VariableArray:
+ // FIXME: Currently QualifiedTypeLoc does not have a source range
+ case Qualified:
+ Cur = Cur.getNextTypeLoc();
+ continue;
default:
- TypeLoc Next = Cur.getNextTypeLoc();
- if (Next.isNull()) break;
- Cur = Next;
+ if (Cur.getLocalSourceRange().getBegin().isValid())
+ LeftMost = Cur;
+ Cur = Cur.getNextTypeLoc();
+ if (Cur.isNull())
+ break;
continue;
- }
+ } // switch
break;
- }
- return Cur.getLocalSourceRange().getBegin();
+ } // while
+ return LeftMost.getLocalSourceRange().getBegin();
}
SourceLocation TypeLoc::getEndLoc() const {
switch (Cur.getTypeLocClass()) {
default:
if (!Last)
- Last = Cur;
+ Last = Cur;
return Last.getLocalSourceRange().getEnd();
case Paren:
case ConstantArray:
case DependentSizedArray:
case IncompleteArray:
case VariableArray:
- case FunctionProto:
case FunctionNoProto:
Last = Cur;
break;
+ case FunctionProto:
+ if (Cur.castAs<FunctionProtoTypeLoc>().getTypePtr()->hasTrailingReturn())
+ Last = TypeLoc();
+ else
+ Last = Cur;
+ break;
case Pointer:
case BlockPointer:
case MemberPointer:
/// because it's a convenient base class. Ideally we would not accept
/// those here, but ideally we would have better implementations for
/// them.
-bool TypeSpecTypeLoc::classof(const TypeLoc *TL) {
- if (TL->getType().hasLocalQualifiers()) return false;
- return TSTChecker().Visit(*TL);
+bool TypeSpecTypeLoc::isKind(const TypeLoc &TL) {
+ if (TL.getType().hasLocalQualifiers()) return false;
+ return TSTChecker().Visit(TL);
}
// Reimplemented to account for GNU/C++ extension
TypeSpecifierType BuiltinTypeLoc::getWrittenTypeSpec() const {
if (needsExtraLocalData())
return static_cast<TypeSpecifierType>(getWrittenBuiltinSpecs().Type);
- else {
- switch (getTypePtr()->getKind()) {
- case BuiltinType::Void:
- return TST_void;
- case BuiltinType::Bool:
- return TST_bool;
- case BuiltinType::Char_U:
- case BuiltinType::Char_S:
- return TST_char;
- case BuiltinType::Char16:
- return TST_char16;
- case BuiltinType::Char32:
- return TST_char32;
- case BuiltinType::WChar_S:
- case BuiltinType::WChar_U:
- return TST_wchar;
-
- case BuiltinType::UChar:
- case BuiltinType::UShort:
- case BuiltinType::UInt:
- case BuiltinType::ULong:
- case BuiltinType::ULongLong:
- case BuiltinType::UInt128:
- case BuiltinType::SChar:
- case BuiltinType::Short:
- case BuiltinType::Int:
- case BuiltinType::Long:
- case BuiltinType::LongLong:
- case BuiltinType::Int128:
- case BuiltinType::Half:
- case BuiltinType::Float:
- case BuiltinType::Double:
- case BuiltinType::LongDouble:
- llvm_unreachable("Builtin type needs extra local data!");
- // Fall through, if the impossible happens.
-
- case BuiltinType::NullPtr:
- case BuiltinType::Overload:
- case BuiltinType::Dependent:
- case BuiltinType::BoundMember:
- case BuiltinType::UnknownAny:
- case BuiltinType::ARCUnbridgedCast:
- case BuiltinType::ObjCId:
- case BuiltinType::ObjCClass:
- case BuiltinType::ObjCSel:
- return TST_unspecified;
- }
+ switch (getTypePtr()->getKind()) {
+ case BuiltinType::Void:
+ return TST_void;
+ case BuiltinType::Bool:
+ return TST_bool;
+ case BuiltinType::Char_U:
+ case BuiltinType::Char_S:
+ return TST_char;
+ case BuiltinType::Char16:
+ return TST_char16;
+ case BuiltinType::Char32:
+ return TST_char32;
+ case BuiltinType::WChar_S:
+ case BuiltinType::WChar_U:
+ return TST_wchar;
+ case BuiltinType::UChar:
+ case BuiltinType::UShort:
+ case BuiltinType::UInt:
+ case BuiltinType::ULong:
+ case BuiltinType::ULongLong:
+ case BuiltinType::UInt128:
+ case BuiltinType::SChar:
+ case BuiltinType::Short:
+ case BuiltinType::Int:
+ case BuiltinType::Long:
+ case BuiltinType::LongLong:
+ case BuiltinType::Int128:
+ case BuiltinType::Half:
+ case BuiltinType::Float:
+ case BuiltinType::Double:
+ case BuiltinType::LongDouble:
+ case BuiltinType::Float128:
+ llvm_unreachable("Builtin type needs extra local data!");
+ // Fall through, if the impossible happens.
+
+ case BuiltinType::NullPtr:
+ case BuiltinType::Overload:
+ case BuiltinType::Dependent:
+ case BuiltinType::BoundMember:
+ case BuiltinType::UnknownAny:
+ case BuiltinType::ARCUnbridgedCast:
+ case BuiltinType::PseudoObject:
+ case BuiltinType::ObjCId:
+ case BuiltinType::ObjCClass:
+ case BuiltinType::ObjCSel:
+#define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \
+ case BuiltinType::Id:
+#include "clang/Basic/OpenCLImageTypes.def"
+ case BuiltinType::OCLSampler:
+ case BuiltinType::OCLEvent:
+ case BuiltinType::OCLClkEvent:
+ case BuiltinType::OCLQueue:
+ case BuiltinType::OCLReserveID:
+ case BuiltinType::BuiltinFn:
+ case BuiltinType::OMPArraySection:
+ return TST_unspecified;
}
-
- return TST_unspecified;
+
+ llvm_unreachable("Invalid BuiltinType Kind!");
}
TypeLoc TypeLoc::IgnoreParensImpl(TypeLoc TL) {
- while (ParenTypeLoc* PTL = dyn_cast<ParenTypeLoc>(&TL))
- TL = PTL->getInnerLoc();
+ while (ParenTypeLoc PTL = TL.getAs<ParenTypeLoc>())
+ TL = PTL.getInnerLoc();
return TL;
}
+SourceLocation TypeLoc::findNullabilityLoc() const {
+ if (auto attributedLoc = getAs<AttributedTypeLoc>()) {
+ if (attributedLoc.getAttrKind() == AttributedType::attr_nullable ||
+ attributedLoc.getAttrKind() == AttributedType::attr_nonnull ||
+ attributedLoc.getAttrKind() == AttributedType::attr_null_unspecified)
+ return attributedLoc.getAttrNameLoc();
+ }
+
+ return SourceLocation();
+}
+
+TypeLoc TypeLoc::findExplicitQualifierLoc() const {
+ // Qualified types.
+ if (auto qual = getAs<QualifiedTypeLoc>())
+ return qual;
+
+ TypeLoc loc = IgnoreParens();
+
+ // Attributed types.
+ if (auto attr = loc.getAs<AttributedTypeLoc>()) {
+ if (attr.isQualifier()) return attr;
+ return attr.getModifiedLoc().findExplicitQualifierLoc();
+ }
+
+ // C11 _Atomic types.
+ if (auto atomic = loc.getAs<AtomicTypeLoc>()) {
+ return atomic;
+ }
+
+ return TypeLoc();
+}
+
+void ObjCTypeParamTypeLoc::initializeLocal(ASTContext &Context,
+ SourceLocation Loc) {
+ setNameLoc(Loc);
+ if (!getNumProtocols()) return;
+
+ setProtocolLAngleLoc(Loc);
+ setProtocolRAngleLoc(Loc);
+ for (unsigned i = 0, e = getNumProtocols(); i != e; ++i)
+ setProtocolLoc(i, Loc);
+}
+
+void ObjCObjectTypeLoc::initializeLocal(ASTContext &Context,
+ SourceLocation Loc) {
+ setHasBaseTypeAsWritten(true);
+ setTypeArgsLAngleLoc(Loc);
+ setTypeArgsRAngleLoc(Loc);
+ for (unsigned i = 0, e = getNumTypeArgs(); i != e; ++i) {
+ setTypeArgTInfo(i,
+ Context.getTrivialTypeSourceInfo(
+ getTypePtr()->getTypeArgsAsWritten()[i], Loc));
+ }
+ setProtocolLAngleLoc(Loc);
+ setProtocolRAngleLoc(Loc);
+ for (unsigned i = 0, e = getNumProtocols(); i != e; ++i)
+ setProtocolLoc(i, Loc);
+}
+
+void TypeOfTypeLoc::initializeLocal(ASTContext &Context,
+ SourceLocation Loc) {
+ TypeofLikeTypeLoc<TypeOfTypeLoc, TypeOfType, TypeOfTypeLocInfo>
+ ::initializeLocal(Context, Loc);
+ this->getLocalData()->UnderlyingTInfo = Context.getTrivialTypeSourceInfo(
+ getUnderlyingType(), Loc);
+}
+
void ElaboratedTypeLoc::initializeLocal(ASTContext &Context,
SourceLocation Loc) {
- setKeywordLoc(Loc);
+ setElaboratedKeywordLoc(Loc);
NestedNameSpecifierLocBuilder Builder;
Builder.MakeTrivial(Context, getTypePtr()->getQualifier(), Loc);
setQualifierLoc(Builder.getWithLocInContext(Context));
void DependentNameTypeLoc::initializeLocal(ASTContext &Context,
SourceLocation Loc) {
- setKeywordLoc(Loc);
+ setElaboratedKeywordLoc(Loc);
NestedNameSpecifierLocBuilder Builder;
Builder.MakeTrivial(Context, getTypePtr()->getQualifier(), Loc);
setQualifierLoc(Builder.getWithLocInContext(Context));
setNameLoc(Loc);
}
-void
-DependentTemplateSpecializationTypeLoc::initializeLocal(ASTContext &Context,
+void
+DependentTemplateSpecializationTypeLoc::initializeLocal(ASTContext &Context,
SourceLocation Loc) {
- setKeywordLoc(Loc);
+ setElaboratedKeywordLoc(Loc);
if (getTypePtr()->getQualifier()) {
NestedNameSpecifierLocBuilder Builder;
Builder.MakeTrivial(Context, getTypePtr()->getQualifier(), Loc);
} else {
setQualifierLoc(NestedNameSpecifierLoc());
}
-
- setNameLoc(Loc);
+ setTemplateKeywordLoc(Loc);
+ setTemplateNameLoc(Loc);
setLAngleLoc(Loc);
setRAngleLoc(Loc);
TemplateSpecializationTypeLoc::initializeArgLocs(Context, getNumArgs(),
for (unsigned i = 0, e = NumArgs; i != e; ++i) {
switch (Args[i].getKind()) {
case TemplateArgument::Null:
- case TemplateArgument::Declaration:
+ llvm_unreachable("Impossible TemplateArgument");
+
case TemplateArgument::Integral:
- case TemplateArgument::Pack:
- case TemplateArgument::Expression:
- // FIXME: Can we do better for declarations and integral values?
+ case TemplateArgument::Declaration:
+ case TemplateArgument::NullPtr:
ArgInfos[i] = TemplateArgumentLocInfo();
break;
+
+ case TemplateArgument::Expression:
+ ArgInfos[i] = TemplateArgumentLocInfo(Args[i].getAsExpr());
+ break;
case TemplateArgument::Type:
ArgInfos[i] = TemplateArgumentLocInfo(
Context.getTrivialTypeSourceInfo(Args[i].getAsType(),
Loc));
break;
-
+
case TemplateArgument::Template:
case TemplateArgument::TemplateExpansion: {
NestedNameSpecifierLocBuilder Builder;
- TemplateName Template = Args[i].getAsTemplate();
+ TemplateName Template = Args[i].getAsTemplateOrTemplatePattern();
if (DependentTemplateName *DTN = Template.getAsDependentTemplateName())
Builder.MakeTrivial(Context, DTN->getQualifier(), Loc);
else if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName())
Builder.MakeTrivial(Context, QTN->getQualifier(), Loc);
-
+
ArgInfos[i] = TemplateArgumentLocInfo(
- Builder.getWithLocInContext(Context),
- Loc,
- Args[i].getKind() == TemplateArgument::Template
- ? SourceLocation()
- : Loc);
+ Builder.getWithLocInContext(Context), Loc,
+ Args[i].getKind() == TemplateArgument::Template ? SourceLocation()
+ : Loc);
+ break;
+ }
+
+ case TemplateArgument::Pack:
+ ArgInfos[i] = TemplateArgumentLocInfo();
break;
- }
}
}
}
-
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