| //===--- TypePrinter.cpp - Pretty-Print Clang Types -----------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This contains code to print types from Clang's type system. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "clang/AST/Decl.h" |
| #include "clang/AST/DeclObjC.h" |
| #include "clang/AST/DeclTemplate.h" |
| #include "clang/AST/Expr.h" |
| #include "clang/AST/Type.h" |
| #include "clang/AST/PrettyPrinter.h" |
| #include "clang/Basic/LangOptions.h" |
| #include "clang/Basic/SourceManager.h" |
| #include "llvm/ADT/StringExtras.h" |
| #include "llvm/Support/raw_ostream.h" |
| using namespace clang; |
| |
| namespace { |
| /// \brief RAII object that enables printing of the ARC __strong lifetime |
| /// qualifier. |
| class IncludeStrongLifetimeRAII { |
| PrintingPolicy &Policy; |
| bool Old; |
| |
| public: |
| explicit IncludeStrongLifetimeRAII(PrintingPolicy &Policy) |
| : Policy(Policy), Old(Policy.SuppressStrongLifetime) { |
| Policy.SuppressStrongLifetime = false; |
| } |
| |
| ~IncludeStrongLifetimeRAII() { |
| Policy.SuppressStrongLifetime = Old; |
| } |
| }; |
| |
| class TypePrinter { |
| PrintingPolicy Policy; |
| |
| public: |
| explicit TypePrinter(const PrintingPolicy &Policy) : Policy(Policy) { } |
| |
| void print(const Type *ty, Qualifiers qs, std::string &buffer); |
| void print(QualType T, std::string &S); |
| void AppendScope(DeclContext *DC, std::string &S); |
| void printTag(TagDecl *T, std::string &S); |
| #define ABSTRACT_TYPE(CLASS, PARENT) |
| #define TYPE(CLASS, PARENT) \ |
| void print##CLASS(const CLASS##Type *T, std::string &S); |
| #include "clang/AST/TypeNodes.def" |
| }; |
| } |
| |
| static void AppendTypeQualList(std::string &S, unsigned TypeQuals) { |
| if (TypeQuals & Qualifiers::Const) { |
| if (!S.empty()) S += ' '; |
| S += "const"; |
| } |
| if (TypeQuals & Qualifiers::Volatile) { |
| if (!S.empty()) S += ' '; |
| S += "volatile"; |
| } |
| if (TypeQuals & Qualifiers::Restrict) { |
| if (!S.empty()) S += ' '; |
| S += "restrict"; |
| } |
| } |
| |
| void TypePrinter::print(QualType t, std::string &buffer) { |
| SplitQualType split = t.split(); |
| print(split.Ty, split.Quals, buffer); |
| } |
| |
| void TypePrinter::print(const Type *T, Qualifiers Quals, std::string &buffer) { |
| if (!T) { |
| buffer += "NULL TYPE"; |
| return; |
| } |
| |
| if (Policy.SuppressSpecifiers && T->isSpecifierType()) |
| return; |
| |
| // Print qualifiers as appropriate. |
| |
| // CanPrefixQualifiers - We prefer to print type qualifiers before the type, |
| // so that we get "const int" instead of "int const", but we can't do this if |
| // the type is complex. For example if the type is "int*", we *must* print |
| // "int * const", printing "const int *" is different. Only do this when the |
| // type expands to a simple string. |
| bool CanPrefixQualifiers = false; |
| bool NeedARCStrongQualifier = false; |
| Type::TypeClass TC = T->getTypeClass(); |
| if (const AutoType *AT = dyn_cast<AutoType>(T)) |
| TC = AT->desugar()->getTypeClass(); |
| if (const SubstTemplateTypeParmType *Subst |
| = dyn_cast<SubstTemplateTypeParmType>(T)) |
| TC = Subst->getReplacementType()->getTypeClass(); |
| |
| switch (TC) { |
| case Type::Builtin: |
| case Type::Complex: |
| case Type::UnresolvedUsing: |
| case Type::Typedef: |
| case Type::TypeOfExpr: |
| case Type::TypeOf: |
| case Type::Decltype: |
| case Type::UnaryTransform: |
| case Type::Record: |
| case Type::Enum: |
| case Type::Elaborated: |
| case Type::TemplateTypeParm: |
| case Type::SubstTemplateTypeParmPack: |
| case Type::TemplateSpecialization: |
| case Type::InjectedClassName: |
| case Type::DependentName: |
| case Type::DependentTemplateSpecialization: |
| case Type::ObjCObject: |
| case Type::ObjCInterface: |
| case Type::Atomic: |
| CanPrefixQualifiers = true; |
| break; |
| |
| case Type::ObjCObjectPointer: |
| CanPrefixQualifiers = T->isObjCIdType() || T->isObjCClassType() || |
| T->isObjCQualifiedIdType() || T->isObjCQualifiedClassType(); |
| break; |
| |
| case Type::ConstantArray: |
| case Type::IncompleteArray: |
| case Type::VariableArray: |
| case Type::DependentSizedArray: |
| NeedARCStrongQualifier = true; |
| // Fall through |
| |
| case Type::Pointer: |
| case Type::BlockPointer: |
| case Type::LValueReference: |
| case Type::RValueReference: |
| case Type::MemberPointer: |
| case Type::DependentSizedExtVector: |
| case Type::Vector: |
| case Type::ExtVector: |
| case Type::FunctionProto: |
| case Type::FunctionNoProto: |
| case Type::Paren: |
| case Type::Attributed: |
| case Type::PackExpansion: |
| case Type::SubstTemplateTypeParm: |
| case Type::Auto: |
| CanPrefixQualifiers = false; |
| break; |
| } |
| |
| if (!CanPrefixQualifiers && !Quals.empty()) { |
| std::string qualsBuffer; |
| if (NeedARCStrongQualifier) { |
| IncludeStrongLifetimeRAII Strong(Policy); |
| Quals.getAsStringInternal(qualsBuffer, Policy); |
| } else { |
| Quals.getAsStringInternal(qualsBuffer, Policy); |
| } |
| |
| if (!qualsBuffer.empty()) { |
| if (!buffer.empty()) { |
| qualsBuffer += ' '; |
| qualsBuffer += buffer; |
| } |
| std::swap(buffer, qualsBuffer); |
| } |
| } |
| |
| switch (T->getTypeClass()) { |
| #define ABSTRACT_TYPE(CLASS, PARENT) |
| #define TYPE(CLASS, PARENT) case Type::CLASS: \ |
| print##CLASS(cast<CLASS##Type>(T), buffer); \ |
| break; |
| #include "clang/AST/TypeNodes.def" |
| } |
| |
| // If we're adding the qualifiers as a prefix, do it now. |
| if (CanPrefixQualifiers && !Quals.empty()) { |
| std::string qualsBuffer; |
| if (NeedARCStrongQualifier) { |
| IncludeStrongLifetimeRAII Strong(Policy); |
| Quals.getAsStringInternal(qualsBuffer, Policy); |
| } else { |
| Quals.getAsStringInternal(qualsBuffer, Policy); |
| } |
| |
| if (!qualsBuffer.empty()) { |
| if (!buffer.empty()) { |
| qualsBuffer += ' '; |
| qualsBuffer += buffer; |
| } |
| std::swap(buffer, qualsBuffer); |
| } |
| } |
| } |
| |
| void TypePrinter::printBuiltin(const BuiltinType *T, std::string &S) { |
| if (S.empty()) { |
| S = T->getName(Policy); |
| } else { |
| // Prefix the basic type, e.g. 'int X'. |
| S = ' ' + S; |
| S = T->getName(Policy) + S; |
| } |
| } |
| |
| void TypePrinter::printComplex(const ComplexType *T, std::string &S) { |
| print(T->getElementType(), S); |
| S = "_Complex " + S; |
| } |
| |
| void TypePrinter::printPointer(const PointerType *T, std::string &S) { |
| S = '*' + S; |
| |
| // Handle things like 'int (*A)[4];' correctly. |
| // FIXME: this should include vectors, but vectors use attributes I guess. |
| if (isa<ArrayType>(T->getPointeeType())) |
| S = '(' + S + ')'; |
| |
| IncludeStrongLifetimeRAII Strong(Policy); |
| print(T->getPointeeType(), S); |
| } |
| |
| void TypePrinter::printBlockPointer(const BlockPointerType *T, std::string &S) { |
| S = '^' + S; |
| print(T->getPointeeType(), S); |
| } |
| |
| void TypePrinter::printLValueReference(const LValueReferenceType *T, |
| std::string &S) { |
| S = '&' + S; |
| |
| // Handle things like 'int (&A)[4];' correctly. |
| // FIXME: this should include vectors, but vectors use attributes I guess. |
| if (isa<ArrayType>(T->getPointeeTypeAsWritten())) |
| S = '(' + S + ')'; |
| |
| IncludeStrongLifetimeRAII Strong(Policy); |
| print(T->getPointeeTypeAsWritten(), S); |
| } |
| |
| void TypePrinter::printRValueReference(const RValueReferenceType *T, |
| std::string &S) { |
| S = "&&" + S; |
| |
| // Handle things like 'int (&&A)[4];' correctly. |
| // FIXME: this should include vectors, but vectors use attributes I guess. |
| if (isa<ArrayType>(T->getPointeeTypeAsWritten())) |
| S = '(' + S + ')'; |
| |
| IncludeStrongLifetimeRAII Strong(Policy); |
| print(T->getPointeeTypeAsWritten(), S); |
| } |
| |
| void TypePrinter::printMemberPointer(const MemberPointerType *T, |
| std::string &S) { |
| PrintingPolicy InnerPolicy(Policy); |
| Policy.SuppressTag = true; |
| std::string C = QualType(T->getClass(), 0).getAsString(InnerPolicy); |
| C += "::*"; |
| S = C + S; |
| |
| // Handle things like 'int (Cls::*A)[4];' correctly. |
| // FIXME: this should include vectors, but vectors use attributes I guess. |
| if (isa<ArrayType>(T->getPointeeType())) |
| S = '(' + S + ')'; |
| |
| IncludeStrongLifetimeRAII Strong(Policy); |
| print(T->getPointeeType(), S); |
| } |
| |
| void TypePrinter::printConstantArray(const ConstantArrayType *T, |
| std::string &S) { |
| S += '['; |
| S += llvm::utostr(T->getSize().getZExtValue()); |
| S += ']'; |
| |
| IncludeStrongLifetimeRAII Strong(Policy); |
| print(T->getElementType(), S); |
| } |
| |
| void TypePrinter::printIncompleteArray(const IncompleteArrayType *T, |
| std::string &S) { |
| S += "[]"; |
| IncludeStrongLifetimeRAII Strong(Policy); |
| print(T->getElementType(), S); |
| } |
| |
| void TypePrinter::printVariableArray(const VariableArrayType *T, |
| std::string &S) { |
| S += '['; |
| |
| if (T->getIndexTypeQualifiers().hasQualifiers()) { |
| AppendTypeQualList(S, T->getIndexTypeCVRQualifiers()); |
| S += ' '; |
| } |
| |
| if (T->getSizeModifier() == VariableArrayType::Static) |
| S += "static"; |
| else if (T->getSizeModifier() == VariableArrayType::Star) |
| S += '*'; |
| |
| if (T->getSizeExpr()) { |
| std::string SStr; |
| llvm::raw_string_ostream s(SStr); |
| T->getSizeExpr()->printPretty(s, 0, Policy); |
| S += s.str(); |
| } |
| S += ']'; |
| |
| IncludeStrongLifetimeRAII Strong(Policy); |
| print(T->getElementType(), S); |
| } |
| |
| void TypePrinter::printDependentSizedArray(const DependentSizedArrayType *T, |
| std::string &S) { |
| S += '['; |
| |
| if (T->getSizeExpr()) { |
| std::string SStr; |
| llvm::raw_string_ostream s(SStr); |
| T->getSizeExpr()->printPretty(s, 0, Policy); |
| S += s.str(); |
| } |
| S += ']'; |
| |
| IncludeStrongLifetimeRAII Strong(Policy); |
| print(T->getElementType(), S); |
| } |
| |
| void TypePrinter::printDependentSizedExtVector( |
| const DependentSizedExtVectorType *T, |
| std::string &S) { |
| print(T->getElementType(), S); |
| |
| S += " __attribute__((ext_vector_type("; |
| if (T->getSizeExpr()) { |
| std::string SStr; |
| llvm::raw_string_ostream s(SStr); |
| T->getSizeExpr()->printPretty(s, 0, Policy); |
| S += s.str(); |
| } |
| S += ")))"; |
| } |
| |
| void TypePrinter::printVector(const VectorType *T, std::string &S) { |
| switch (T->getVectorKind()) { |
| case VectorType::AltiVecPixel: |
| S = "__vector __pixel " + S; |
| break; |
| case VectorType::AltiVecBool: |
| print(T->getElementType(), S); |
| S = "__vector __bool " + S; |
| break; |
| case VectorType::AltiVecVector: |
| print(T->getElementType(), S); |
| S = "__vector " + S; |
| break; |
| case VectorType::NeonVector: |
| print(T->getElementType(), S); |
| S = ("__attribute__((neon_vector_type(" + |
| llvm::utostr_32(T->getNumElements()) + "))) " + S); |
| break; |
| case VectorType::NeonPolyVector: |
| print(T->getElementType(), S); |
| S = ("__attribute__((neon_polyvector_type(" + |
| llvm::utostr_32(T->getNumElements()) + "))) " + S); |
| break; |
| case VectorType::GenericVector: { |
| // FIXME: We prefer to print the size directly here, but have no way |
| // to get the size of the type. |
| print(T->getElementType(), S); |
| std::string V = "__attribute__((__vector_size__("; |
| V += llvm::utostr_32(T->getNumElements()); // convert back to bytes. |
| std::string ET; |
| print(T->getElementType(), ET); |
| V += " * sizeof(" + ET + ")))) "; |
| S = V + S; |
| break; |
| } |
| } |
| } |
| |
| void TypePrinter::printExtVector(const ExtVectorType *T, std::string &S) { |
| S += " __attribute__((ext_vector_type("; |
| S += llvm::utostr_32(T->getNumElements()); |
| S += ")))"; |
| print(T->getElementType(), S); |
| } |
| |
| void |
| FunctionProtoType::printExceptionSpecification(std::string &S, |
| PrintingPolicy Policy) const { |
| |
| if (hasDynamicExceptionSpec()) { |
| S += " throw("; |
| if (getExceptionSpecType() == EST_MSAny) |
| S += "..."; |
| else |
| for (unsigned I = 0, N = getNumExceptions(); I != N; ++I) { |
| if (I) |
| S += ", "; |
| |
| S += getExceptionType(I).getAsString(Policy); |
| } |
| S += ")"; |
| } else if (isNoexceptExceptionSpec(getExceptionSpecType())) { |
| S += " noexcept"; |
| if (getExceptionSpecType() == EST_ComputedNoexcept) { |
| S += "("; |
| llvm::raw_string_ostream EOut(S); |
| getNoexceptExpr()->printPretty(EOut, 0, Policy); |
| EOut.flush(); |
| S += EOut.str(); |
| S += ")"; |
| } |
| } |
| } |
| |
| void TypePrinter::printFunctionProto(const FunctionProtoType *T, |
| std::string &S) { |
| // If needed for precedence reasons, wrap the inner part in grouping parens. |
| if (!S.empty()) |
| S = "(" + S + ")"; |
| |
| S += "("; |
| std::string Tmp; |
| PrintingPolicy ParamPolicy(Policy); |
| ParamPolicy.SuppressSpecifiers = false; |
| for (unsigned i = 0, e = T->getNumArgs(); i != e; ++i) { |
| if (i) S += ", "; |
| print(T->getArgType(i), Tmp); |
| S += Tmp; |
| Tmp.clear(); |
| } |
| |
| if (T->isVariadic()) { |
| if (T->getNumArgs()) |
| S += ", "; |
| S += "..."; |
| } else if (T->getNumArgs() == 0 && !Policy.LangOpts.CPlusPlus) { |
| // Do not emit int() if we have a proto, emit 'int(void)'. |
| S += "void"; |
| } |
| |
| S += ")"; |
| |
| FunctionType::ExtInfo Info = T->getExtInfo(); |
| switch(Info.getCC()) { |
| case CC_Default: break; |
| case CC_C: |
| S += " __attribute__((cdecl))"; |
| break; |
| case CC_X86StdCall: |
| S += " __attribute__((stdcall))"; |
| break; |
| case CC_X86FastCall: |
| S += " __attribute__((fastcall))"; |
| break; |
| case CC_X86ThisCall: |
| S += " __attribute__((thiscall))"; |
| break; |
| case CC_X86Pascal: |
| S += " __attribute__((pascal))"; |
| break; |
| case CC_AAPCS: |
| S += " __attribute__((pcs(\"aapcs\")))"; |
| break; |
| case CC_AAPCS_VFP: |
| S += " __attribute__((pcs(\"aapcs-vfp\")))"; |
| break; |
| } |
| if (Info.getNoReturn()) |
| S += " __attribute__((noreturn))"; |
| if (Info.getRegParm()) |
| S += " __attribute__((regparm (" + |
| llvm::utostr_32(Info.getRegParm()) + ")))"; |
| |
| AppendTypeQualList(S, T->getTypeQuals()); |
| |
| switch (T->getRefQualifier()) { |
| case RQ_None: |
| break; |
| |
| case RQ_LValue: |
| S += " &"; |
| break; |
| |
| case RQ_RValue: |
| S += " &&"; |
| break; |
| } |
| T->printExceptionSpecification(S, Policy); |
| if (T->hasTrailingReturn()) { |
| std::string ResultS; |
| print(T->getResultType(), ResultS); |
| S = "auto " + S + " -> " + ResultS; |
| } else |
| print(T->getResultType(), S); |
| } |
| |
| void TypePrinter::printFunctionNoProto(const FunctionNoProtoType *T, |
| std::string &S) { |
| // If needed for precedence reasons, wrap the inner part in grouping parens. |
| if (!S.empty()) |
| S = "(" + S + ")"; |
| |
| S += "()"; |
| if (T->getNoReturnAttr()) |
| S += " __attribute__((noreturn))"; |
| print(T->getResultType(), S); |
| } |
| |
| static void printTypeSpec(const NamedDecl *D, std::string &S) { |
| IdentifierInfo *II = D->getIdentifier(); |
| if (S.empty()) |
| S = II->getName().str(); |
| else |
| S = II->getName().str() + ' ' + S; |
| } |
| |
| void TypePrinter::printUnresolvedUsing(const UnresolvedUsingType *T, |
| std::string &S) { |
| printTypeSpec(T->getDecl(), S); |
| } |
| |
| void TypePrinter::printTypedef(const TypedefType *T, std::string &S) { |
| printTypeSpec(T->getDecl(), S); |
| } |
| |
| void TypePrinter::printTypeOfExpr(const TypeOfExprType *T, std::string &S) { |
| if (!S.empty()) // Prefix the basic type, e.g. 'typeof(e) X'. |
| S = ' ' + S; |
| std::string Str; |
| llvm::raw_string_ostream s(Str); |
| T->getUnderlyingExpr()->printPretty(s, 0, Policy); |
| S = "typeof " + s.str() + S; |
| } |
| |
| void TypePrinter::printTypeOf(const TypeOfType *T, std::string &S) { |
| if (!S.empty()) // Prefix the basic type, e.g. 'typeof(t) X'. |
| S = ' ' + S; |
| std::string Tmp; |
| print(T->getUnderlyingType(), Tmp); |
| S = "typeof(" + Tmp + ")" + S; |
| } |
| |
| void TypePrinter::printDecltype(const DecltypeType *T, std::string &S) { |
| if (!S.empty()) // Prefix the basic type, e.g. 'decltype(t) X'. |
| S = ' ' + S; |
| std::string Str; |
| llvm::raw_string_ostream s(Str); |
| T->getUnderlyingExpr()->printPretty(s, 0, Policy); |
| S = "decltype(" + s.str() + ")" + S; |
| } |
| |
| void TypePrinter::printUnaryTransform(const UnaryTransformType *T, |
| std::string &S) { |
| if (!S.empty()) |
| S = ' ' + S; |
| std::string Str; |
| IncludeStrongLifetimeRAII Strong(Policy); |
| print(T->getBaseType(), Str); |
| |
| switch (T->getUTTKind()) { |
| case UnaryTransformType::EnumUnderlyingType: |
| S = "__underlying_type(" + Str + ")" + S; |
| break; |
| } |
| } |
| |
| void TypePrinter::printAuto(const AutoType *T, std::string &S) { |
| // If the type has been deduced, do not print 'auto'. |
| if (T->isDeduced()) { |
| print(T->getDeducedType(), S); |
| } else { |
| if (!S.empty()) // Prefix the basic type, e.g. 'auto X'. |
| S = ' ' + S; |
| S = "auto" + S; |
| } |
| } |
| |
| void TypePrinter::printAtomic(const AtomicType *T, std::string &S) { |
| if (!S.empty()) |
| S = ' ' + S; |
| std::string Str; |
| IncludeStrongLifetimeRAII Strong(Policy); |
| print(T->getValueType(), Str); |
| |
| S = "_Atomic(" + Str + ")" + S; |
| } |
| |
| /// Appends the given scope to the end of a string. |
| void TypePrinter::AppendScope(DeclContext *DC, std::string &Buffer) { |
| if (DC->isTranslationUnit()) return; |
| AppendScope(DC->getParent(), Buffer); |
| |
| unsigned OldSize = Buffer.size(); |
| |
| if (NamespaceDecl *NS = dyn_cast<NamespaceDecl>(DC)) { |
| if (Policy.SuppressUnwrittenScope && |
| (NS->isAnonymousNamespace() || NS->isInline())) |
| return; |
| if (NS->getIdentifier()) |
| Buffer += NS->getNameAsString(); |
| else |
| Buffer += "<anonymous>"; |
| } else if (ClassTemplateSpecializationDecl *Spec |
| = dyn_cast<ClassTemplateSpecializationDecl>(DC)) { |
| IncludeStrongLifetimeRAII Strong(Policy); |
| const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs(); |
| std::string TemplateArgsStr |
| = TemplateSpecializationType::PrintTemplateArgumentList( |
| TemplateArgs.data(), |
| TemplateArgs.size(), |
| Policy); |
| Buffer += Spec->getIdentifier()->getName(); |
| Buffer += TemplateArgsStr; |
| } else if (TagDecl *Tag = dyn_cast<TagDecl>(DC)) { |
| if (TypedefNameDecl *Typedef = Tag->getTypedefNameForAnonDecl()) |
| Buffer += Typedef->getIdentifier()->getName(); |
| else if (Tag->getIdentifier()) |
| Buffer += Tag->getIdentifier()->getName(); |
| else |
| return; |
| } |
| |
| if (Buffer.size() != OldSize) |
| Buffer += "::"; |
| } |
| |
| void TypePrinter::printTag(TagDecl *D, std::string &InnerString) { |
| if (Policy.SuppressTag) |
| return; |
| |
| std::string Buffer; |
| bool HasKindDecoration = false; |
| |
| // bool SuppressTagKeyword |
| // = Policy.LangOpts.CPlusPlus || Policy.SuppressTagKeyword; |
| |
| // We don't print tags unless this is an elaborated type. |
| // In C, we just assume every RecordType is an elaborated type. |
| if (!(Policy.LangOpts.CPlusPlus || Policy.SuppressTagKeyword || |
| D->getTypedefNameForAnonDecl())) { |
| HasKindDecoration = true; |
| Buffer += D->getKindName(); |
| Buffer += ' '; |
| } |
| |
| // Compute the full nested-name-specifier for this type. |
| // In C, this will always be empty except when the type |
| // being printed is anonymous within other Record. |
| if (!Policy.SuppressScope) |
| AppendScope(D->getDeclContext(), Buffer); |
| |
| if (const IdentifierInfo *II = D->getIdentifier()) |
| Buffer += II->getNameStart(); |
| else if (TypedefNameDecl *Typedef = D->getTypedefNameForAnonDecl()) { |
| assert(Typedef->getIdentifier() && "Typedef without identifier?"); |
| Buffer += Typedef->getIdentifier()->getNameStart(); |
| } else { |
| // Make an unambiguous representation for anonymous types, e.g. |
| // <anonymous enum at /usr/include/string.h:120:9> |
| llvm::raw_string_ostream OS(Buffer); |
| |
| if (isa<CXXRecordDecl>(D) && cast<CXXRecordDecl>(D)->isLambda()) { |
| OS << "<lambda"; |
| HasKindDecoration = true; |
| } else { |
| OS << "<anonymous"; |
| } |
| |
| if (Policy.AnonymousTagLocations) { |
| // Suppress the redundant tag keyword if we just printed one. |
| // We don't have to worry about ElaboratedTypes here because you can't |
| // refer to an anonymous type with one. |
| if (!HasKindDecoration) |
| OS << " " << D->getKindName(); |
| |
| PresumedLoc PLoc = D->getASTContext().getSourceManager().getPresumedLoc( |
| D->getLocation()); |
| if (PLoc.isValid()) { |
| OS << " at " << PLoc.getFilename() |
| << ':' << PLoc.getLine() |
| << ':' << PLoc.getColumn(); |
| } |
| } |
| |
| OS << '>'; |
| } |
| |
| // If this is a class template specialization, print the template |
| // arguments. |
| if (ClassTemplateSpecializationDecl *Spec |
| = dyn_cast<ClassTemplateSpecializationDecl>(D)) { |
| const TemplateArgument *Args; |
| unsigned NumArgs; |
| if (TypeSourceInfo *TAW = Spec->getTypeAsWritten()) { |
| const TemplateSpecializationType *TST = |
| cast<TemplateSpecializationType>(TAW->getType()); |
| Args = TST->getArgs(); |
| NumArgs = TST->getNumArgs(); |
| } else { |
| const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs(); |
| Args = TemplateArgs.data(); |
| NumArgs = TemplateArgs.size(); |
| } |
| IncludeStrongLifetimeRAII Strong(Policy); |
| Buffer += TemplateSpecializationType::PrintTemplateArgumentList(Args, |
| NumArgs, |
| Policy); |
| } |
| |
| if (!InnerString.empty()) { |
| Buffer += ' '; |
| Buffer += InnerString; |
| } |
| |
| std::swap(Buffer, InnerString); |
| } |
| |
| void TypePrinter::printRecord(const RecordType *T, std::string &S) { |
| printTag(T->getDecl(), S); |
| } |
| |
| void TypePrinter::printEnum(const EnumType *T, std::string &S) { |
| printTag(T->getDecl(), S); |
| } |
| |
| void TypePrinter::printTemplateTypeParm(const TemplateTypeParmType *T, |
| std::string &S) { |
| if (!S.empty()) // Prefix the basic type, e.g. 'parmname X'. |
| S = ' ' + S; |
| |
| if (IdentifierInfo *Id = T->getIdentifier()) |
| S = Id->getName().str() + S; |
| else |
| S = "type-parameter-" + llvm::utostr_32(T->getDepth()) + '-' + |
| llvm::utostr_32(T->getIndex()) + S; |
| } |
| |
| void TypePrinter::printSubstTemplateTypeParm(const SubstTemplateTypeParmType *T, |
| std::string &S) { |
| IncludeStrongLifetimeRAII Strong(Policy); |
| print(T->getReplacementType(), S); |
| } |
| |
| void TypePrinter::printSubstTemplateTypeParmPack( |
| const SubstTemplateTypeParmPackType *T, |
| std::string &S) { |
| IncludeStrongLifetimeRAII Strong(Policy); |
| printTemplateTypeParm(T->getReplacedParameter(), S); |
| } |
| |
| void TypePrinter::printTemplateSpecialization( |
| const TemplateSpecializationType *T, |
| std::string &S) { |
| IncludeStrongLifetimeRAII Strong(Policy); |
| std::string SpecString; |
| |
| { |
| llvm::raw_string_ostream OS(SpecString); |
| T->getTemplateName().print(OS, Policy); |
| } |
| |
| SpecString += TemplateSpecializationType::PrintTemplateArgumentList( |
| T->getArgs(), |
| T->getNumArgs(), |
| Policy); |
| if (S.empty()) |
| S.swap(SpecString); |
| else |
| S = SpecString + ' ' + S; |
| } |
| |
| void TypePrinter::printInjectedClassName(const InjectedClassNameType *T, |
| std::string &S) { |
| printTemplateSpecialization(T->getInjectedTST(), S); |
| } |
| |
| void TypePrinter::printElaborated(const ElaboratedType *T, std::string &S) { |
| std::string MyString; |
| |
| { |
| llvm::raw_string_ostream OS(MyString); |
| OS << TypeWithKeyword::getKeywordName(T->getKeyword()); |
| if (T->getKeyword() != ETK_None) |
| OS << " "; |
| NestedNameSpecifier* Qualifier = T->getQualifier(); |
| if (Qualifier) |
| Qualifier->print(OS, Policy); |
| } |
| |
| std::string TypeStr; |
| PrintingPolicy InnerPolicy(Policy); |
| InnerPolicy.SuppressTagKeyword = true; |
| InnerPolicy.SuppressScope = true; |
| TypePrinter(InnerPolicy).print(T->getNamedType(), TypeStr); |
| |
| MyString += TypeStr; |
| if (S.empty()) |
| S.swap(MyString); |
| else |
| S = MyString + ' ' + S; |
| } |
| |
| void TypePrinter::printParen(const ParenType *T, std::string &S) { |
| if (!S.empty() && !isa<FunctionType>(T->getInnerType())) |
| S = '(' + S + ')'; |
| print(T->getInnerType(), S); |
| } |
| |
| void TypePrinter::printDependentName(const DependentNameType *T, std::string &S) { |
| std::string MyString; |
| |
| { |
| llvm::raw_string_ostream OS(MyString); |
| OS << TypeWithKeyword::getKeywordName(T->getKeyword()); |
| if (T->getKeyword() != ETK_None) |
| OS << " "; |
| |
| T->getQualifier()->print(OS, Policy); |
| |
| OS << T->getIdentifier()->getName(); |
| } |
| |
| if (S.empty()) |
| S.swap(MyString); |
| else |
| S = MyString + ' ' + S; |
| } |
| |
| void TypePrinter::printDependentTemplateSpecialization( |
| const DependentTemplateSpecializationType *T, std::string &S) { |
| IncludeStrongLifetimeRAII Strong(Policy); |
| std::string MyString; |
| { |
| llvm::raw_string_ostream OS(MyString); |
| |
| OS << TypeWithKeyword::getKeywordName(T->getKeyword()); |
| if (T->getKeyword() != ETK_None) |
| OS << " "; |
| |
| if (T->getQualifier()) |
| T->getQualifier()->print(OS, Policy); |
| OS << T->getIdentifier()->getName(); |
| OS << TemplateSpecializationType::PrintTemplateArgumentList( |
| T->getArgs(), |
| T->getNumArgs(), |
| Policy); |
| } |
| |
| if (S.empty()) |
| S.swap(MyString); |
| else |
| S = MyString + ' ' + S; |
| } |
| |
| void TypePrinter::printPackExpansion(const PackExpansionType *T, |
| std::string &S) { |
| print(T->getPattern(), S); |
| S += "..."; |
| } |
| |
| void TypePrinter::printAttributed(const AttributedType *T, |
| std::string &S) { |
| // Prefer the macro forms of the GC and ownership qualifiers. |
| if (T->getAttrKind() == AttributedType::attr_objc_gc || |
| T->getAttrKind() == AttributedType::attr_objc_ownership) |
| return print(T->getEquivalentType(), S); |
| |
| print(T->getModifiedType(), S); |
| |
| // TODO: not all attributes are GCC-style attributes. |
| S += " __attribute__(("; |
| switch (T->getAttrKind()) { |
| case AttributedType::attr_address_space: |
| S += "address_space("; |
| S += T->getEquivalentType().getAddressSpace(); |
| S += ")"; |
| break; |
| |
| case AttributedType::attr_vector_size: { |
| S += "__vector_size__("; |
| if (const VectorType *vector =T->getEquivalentType()->getAs<VectorType>()) { |
| S += vector->getNumElements(); |
| S += " * sizeof("; |
| |
| std::string tmp; |
| print(vector->getElementType(), tmp); |
| S += tmp; |
| S += ")"; |
| } |
| S += ")"; |
| break; |
| } |
| |
| case AttributedType::attr_neon_vector_type: |
| case AttributedType::attr_neon_polyvector_type: { |
| if (T->getAttrKind() == AttributedType::attr_neon_vector_type) |
| S += "neon_vector_type("; |
| else |
| S += "neon_polyvector_type("; |
| const VectorType *vector = T->getEquivalentType()->getAs<VectorType>(); |
| S += llvm::utostr_32(vector->getNumElements()); |
| S += ")"; |
| break; |
| } |
| |
| case AttributedType::attr_regparm: { |
| S += "regparm("; |
| QualType t = T->getEquivalentType(); |
| while (!t->isFunctionType()) |
| t = t->getPointeeType(); |
| S += t->getAs<FunctionType>()->getRegParmType(); |
| S += ")"; |
| break; |
| } |
| |
| case AttributedType::attr_objc_gc: { |
| S += "objc_gc("; |
| |
| QualType tmp = T->getEquivalentType(); |
| while (tmp.getObjCGCAttr() == Qualifiers::GCNone) { |
| QualType next = tmp->getPointeeType(); |
| if (next == tmp) break; |
| tmp = next; |
| } |
| |
| if (tmp.isObjCGCWeak()) |
| S += "weak"; |
| else |
| S += "strong"; |
| S += ")"; |
| break; |
| } |
| |
| case AttributedType::attr_objc_ownership: |
| S += "objc_ownership("; |
| switch (T->getEquivalentType().getObjCLifetime()) { |
| case Qualifiers::OCL_None: llvm_unreachable("no ownership!"); |
| case Qualifiers::OCL_ExplicitNone: S += "none"; break; |
| case Qualifiers::OCL_Strong: S += "strong"; break; |
| case Qualifiers::OCL_Weak: S += "weak"; break; |
| case Qualifiers::OCL_Autoreleasing: S += "autoreleasing"; break; |
| } |
| S += ")"; |
| break; |
| |
| case AttributedType::attr_noreturn: S += "noreturn"; break; |
| case AttributedType::attr_cdecl: S += "cdecl"; break; |
| case AttributedType::attr_fastcall: S += "fastcall"; break; |
| case AttributedType::attr_stdcall: S += "stdcall"; break; |
| case AttributedType::attr_thiscall: S += "thiscall"; break; |
| case AttributedType::attr_pascal: S += "pascal"; break; |
| case AttributedType::attr_pcs: { |
| S += "pcs("; |
| QualType t = T->getEquivalentType(); |
| while (!t->isFunctionType()) |
| t = t->getPointeeType(); |
| S += (t->getAs<FunctionType>()->getCallConv() == CC_AAPCS ? |
| "\"aapcs\"" : "\"aapcs-vfp\""); |
| S += ")"; |
| break; |
| } |
| } |
| S += "))"; |
| } |
| |
| void TypePrinter::printObjCInterface(const ObjCInterfaceType *T, |
| std::string &S) { |
| if (!S.empty()) // Prefix the basic type, e.g. 'typedefname X'. |
| S = ' ' + S; |
| |
| std::string ObjCQIString = T->getDecl()->getNameAsString(); |
| S = ObjCQIString + S; |
| } |
| |
| void TypePrinter::printObjCObject(const ObjCObjectType *T, |
| std::string &S) { |
| if (T->qual_empty()) |
| return print(T->getBaseType(), S); |
| |
| std::string tmp; |
| print(T->getBaseType(), tmp); |
| tmp += '<'; |
| bool isFirst = true; |
| for (ObjCObjectType::qual_iterator |
| I = T->qual_begin(), E = T->qual_end(); I != E; ++I) { |
| if (isFirst) |
| isFirst = false; |
| else |
| tmp += ','; |
| tmp += (*I)->getNameAsString(); |
| } |
| tmp += '>'; |
| |
| if (!S.empty()) { |
| tmp += ' '; |
| tmp += S; |
| } |
| std::swap(tmp, S); |
| } |
| |
| void TypePrinter::printObjCObjectPointer(const ObjCObjectPointerType *T, |
| std::string &S) { |
| std::string ObjCQIString; |
| |
| T->getPointeeType().getLocalQualifiers().getAsStringInternal(ObjCQIString, |
| Policy); |
| if (!ObjCQIString.empty()) |
| ObjCQIString += ' '; |
| |
| if (T->isObjCIdType() || T->isObjCQualifiedIdType()) |
| ObjCQIString += "id"; |
| else if (T->isObjCClassType() || T->isObjCQualifiedClassType()) |
| ObjCQIString += "Class"; |
| else if (T->isObjCSelType()) |
| ObjCQIString += "SEL"; |
| else |
| ObjCQIString += T->getInterfaceDecl()->getNameAsString(); |
| |
| if (!T->qual_empty()) { |
| ObjCQIString += '<'; |
| for (ObjCObjectPointerType::qual_iterator I = T->qual_begin(), |
| E = T->qual_end(); |
| I != E; ++I) { |
| ObjCQIString += (*I)->getNameAsString(); |
| if (I+1 != E) |
| ObjCQIString += ','; |
| } |
| ObjCQIString += '>'; |
| } |
| |
| if (!T->isObjCIdType() && !T->isObjCQualifiedIdType()) |
| ObjCQIString += " *"; // Don't forget the implicit pointer. |
| else if (!S.empty()) // Prefix the basic type, e.g. 'typedefname X'. |
| S = ' ' + S; |
| |
| S = ObjCQIString + S; |
| } |
| |
| std::string TemplateSpecializationType:: |
| PrintTemplateArgumentList(const TemplateArgumentListInfo &Args, |
| const PrintingPolicy &Policy) { |
| return PrintTemplateArgumentList(Args.getArgumentArray(), |
| Args.size(), |
| Policy); |
| } |
| |
| std::string |
| TemplateSpecializationType::PrintTemplateArgumentList( |
| const TemplateArgument *Args, |
| unsigned NumArgs, |
| const PrintingPolicy &Policy, |
| bool SkipBrackets) { |
| std::string SpecString; |
| if (!SkipBrackets) |
| SpecString += '<'; |
| |
| for (unsigned Arg = 0; Arg < NumArgs; ++Arg) { |
| if (SpecString.size() > unsigned(!SkipBrackets)) |
| SpecString += ", "; |
| |
| // Print the argument into a string. |
| std::string ArgString; |
| if (Args[Arg].getKind() == TemplateArgument::Pack) { |
| ArgString = PrintTemplateArgumentList(Args[Arg].pack_begin(), |
| Args[Arg].pack_size(), |
| Policy, true); |
| } else { |
| llvm::raw_string_ostream ArgOut(ArgString); |
| Args[Arg].print(Policy, ArgOut); |
| } |
| |
| // If this is the first argument and its string representation |
| // begins with the global scope specifier ('::foo'), add a space |
| // to avoid printing the diagraph '<:'. |
| if (!Arg && !ArgString.empty() && ArgString[0] == ':') |
| SpecString += ' '; |
| |
| SpecString += ArgString; |
| } |
| |
| // If the last character of our string is '>', add another space to |
| // keep the two '>''s separate tokens. We don't *have* to do this in |
| // C++0x, but it's still good hygiene. |
| if (!SpecString.empty() && SpecString[SpecString.size() - 1] == '>') |
| SpecString += ' '; |
| |
| if (!SkipBrackets) |
| SpecString += '>'; |
| |
| return SpecString; |
| } |
| |
| // Sadly, repeat all that with TemplateArgLoc. |
| std::string TemplateSpecializationType:: |
| PrintTemplateArgumentList(const TemplateArgumentLoc *Args, unsigned NumArgs, |
| const PrintingPolicy &Policy) { |
| std::string SpecString; |
| SpecString += '<'; |
| for (unsigned Arg = 0; Arg < NumArgs; ++Arg) { |
| if (SpecString.size() > 1) |
| SpecString += ", "; |
| |
| // Print the argument into a string. |
| std::string ArgString; |
| if (Args[Arg].getArgument().getKind() == TemplateArgument::Pack) { |
| ArgString = PrintTemplateArgumentList( |
| Args[Arg].getArgument().pack_begin(), |
| Args[Arg].getArgument().pack_size(), |
| Policy, true); |
| } else { |
| llvm::raw_string_ostream ArgOut(ArgString); |
| Args[Arg].getArgument().print(Policy, ArgOut); |
| } |
| |
| // If this is the first argument and its string representation |
| // begins with the global scope specifier ('::foo'), add a space |
| // to avoid printing the diagraph '<:'. |
| if (!Arg && !ArgString.empty() && ArgString[0] == ':') |
| SpecString += ' '; |
| |
| SpecString += ArgString; |
| } |
| |
| // If the last character of our string is '>', add another space to |
| // keep the two '>''s separate tokens. We don't *have* to do this in |
| // C++0x, but it's still good hygiene. |
| if (SpecString[SpecString.size() - 1] == '>') |
| SpecString += ' '; |
| |
| SpecString += '>'; |
| |
| return SpecString; |
| } |
| |
| void QualType::dump(const char *msg) const { |
| std::string R = "identifier"; |
| LangOptions LO; |
| getAsStringInternal(R, PrintingPolicy(LO)); |
| if (msg) |
| llvm::errs() << msg << ": "; |
| llvm::errs() << R << "\n"; |
| } |
| void QualType::dump() const { |
| dump(""); |
| } |
| |
| void Type::dump() const { |
| QualType(this, 0).dump(); |
| } |
| |
| std::string Qualifiers::getAsString() const { |
| LangOptions LO; |
| return getAsString(PrintingPolicy(LO)); |
| } |
| |
| // Appends qualifiers to the given string, separated by spaces. Will |
| // prefix a space if the string is non-empty. Will not append a final |
| // space. |
| void Qualifiers::getAsStringInternal(std::string &S, |
| const PrintingPolicy& Policy) const { |
| AppendTypeQualList(S, getCVRQualifiers()); |
| if (unsigned addrspace = getAddressSpace()) { |
| if (!S.empty()) S += ' '; |
| switch (addrspace) { |
| case LangAS::opencl_global: |
| S += "__global"; |
| break; |
| case LangAS::opencl_local: |
| S += "__local"; |
| break; |
| case LangAS::opencl_constant: |
| S += "__constant"; |
| break; |
| default: |
| S += "__attribute__((address_space("; |
| S += llvm::utostr_32(addrspace); |
| S += ")))"; |
| } |
| } |
| if (Qualifiers::GC gc = getObjCGCAttr()) { |
| if (!S.empty()) S += ' '; |
| if (gc == Qualifiers::Weak) |
| S += "__weak"; |
| else |
| S += "__strong"; |
| } |
| if (Qualifiers::ObjCLifetime lifetime = getObjCLifetime()) { |
| if (!S.empty() && |
| !(lifetime == Qualifiers::OCL_Strong && Policy.SuppressStrongLifetime)) |
| S += ' '; |
| |
| switch (lifetime) { |
| case Qualifiers::OCL_None: llvm_unreachable("none but true"); |
| case Qualifiers::OCL_ExplicitNone: S += "__unsafe_unretained"; break; |
| case Qualifiers::OCL_Strong: |
| if (!Policy.SuppressStrongLifetime) |
| S += "__strong"; |
| break; |
| |
| case Qualifiers::OCL_Weak: S += "__weak"; break; |
| case Qualifiers::OCL_Autoreleasing: S += "__autoreleasing"; break; |
| } |
| } |
| } |
| |
| std::string QualType::getAsString(const Type *ty, Qualifiers qs) { |
| std::string buffer; |
| LangOptions options; |
| getAsStringInternal(ty, qs, buffer, PrintingPolicy(options)); |
| return buffer; |
| } |
| |
| void QualType::getAsStringInternal(const Type *ty, Qualifiers qs, |
| std::string &buffer, |
| const PrintingPolicy &policy) { |
| TypePrinter(policy).print(ty, qs, buffer); |
| } |