Magic-Mirror/llvm-capstone
1
0
Fork 0
mirror of https://github.com/capstone-engine/llvm-capstone.git synced 2024-12-02 18:58:15 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity
599cb8e430
llvm-capstone/clang/lib/AST/ASTImporter.cpp
Sebastian Redl fa453cfdc3 Propagate the new exception information to FunctionProtoType. 
Change the interface to expose the new information and deal with the enormous fallout.
Introduce the new ExceptionSpecificationType value EST_DynamicNone to more easily deal with empty throw specifications.
Update the tests for noexcept and fix the various bugs uncovered, such as lack of tentative parsing support.

llvm-svn: 127537
2011-03-12 11:50:43 +00:00

4321 lines
158 KiB
C++
Raw Blame History

//===--- ASTImporter.cpp - Importing ASTs from other Contexts ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the ASTImporter class which imports AST nodes from one
// context into another context.
//
//===----------------------------------------------------------------------===//
#include "clang/AST/ASTImporter.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTDiagnostic.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclVisitor.h"
#include "clang/AST/StmtVisitor.h"
#include "clang/AST/TypeVisitor.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "llvm/Support/MemoryBuffer.h"
#include <deque>
using namespace clang;
namespace {
class ASTNodeImporter : public TypeVisitor<ASTNodeImporter, QualType>,
public DeclVisitor<ASTNodeImporter, Decl *>,
public StmtVisitor<ASTNodeImporter, Stmt *> {
ASTImporter &Importer;
public:
explicit ASTNodeImporter(ASTImporter &Importer) : Importer(Importer) { }
using TypeVisitor<ASTNodeImporter, QualType>::Visit;
using DeclVisitor<ASTNodeImporter, Decl *>::Visit;
using StmtVisitor<ASTNodeImporter, Stmt *>::Visit;
// Importing types
QualType VisitType(const Type *T);
QualType VisitBuiltinType(const BuiltinType *T);
QualType VisitComplexType(const ComplexType *T);
QualType VisitPointerType(const PointerType *T);
QualType VisitBlockPointerType(const BlockPointerType *T);
QualType VisitLValueReferenceType(const LValueReferenceType *T);
QualType VisitRValueReferenceType(const RValueReferenceType *T);
QualType VisitMemberPointerType(const MemberPointerType *T);
QualType VisitConstantArrayType(const ConstantArrayType *T);
QualType VisitIncompleteArrayType(const IncompleteArrayType *T);
QualType VisitVariableArrayType(const VariableArrayType *T);
// FIXME: DependentSizedArrayType
// FIXME: DependentSizedExtVectorType
QualType VisitVectorType(const VectorType *T);
QualType VisitExtVectorType(const ExtVectorType *T);
QualType VisitFunctionNoProtoType(const FunctionNoProtoType *T);
QualType VisitFunctionProtoType(const FunctionProtoType *T);
// FIXME: UnresolvedUsingType
QualType VisitTypedefType(const TypedefType *T);
QualType VisitTypeOfExprType(const TypeOfExprType *T);
// FIXME: DependentTypeOfExprType
QualType VisitTypeOfType(const TypeOfType *T);
QualType VisitDecltypeType(const DecltypeType *T);
QualType VisitAutoType(const AutoType *T);
// FIXME: DependentDecltypeType
QualType VisitRecordType(const RecordType *T);
QualType VisitEnumType(const EnumType *T);
// FIXME: TemplateTypeParmType
// FIXME: SubstTemplateTypeParmType
QualType VisitTemplateSpecializationType(const TemplateSpecializationType *T);
QualType VisitElaboratedType(const ElaboratedType *T);
// FIXME: DependentNameType
// FIXME: DependentTemplateSpecializationType
QualType VisitObjCInterfaceType(const ObjCInterfaceType *T);
QualType VisitObjCObjectType(const ObjCObjectType *T);
QualType VisitObjCObjectPointerType(const ObjCObjectPointerType *T);
// Importing declarations
bool ImportDeclParts(NamedDecl *D, DeclContext *&DC,
DeclContext *&LexicalDC, DeclarationName &Name,
SourceLocation &Loc);
void ImportDeclarationNameLoc(const DeclarationNameInfo &From,
DeclarationNameInfo& To);
void ImportDeclContext(DeclContext *FromDC, bool ForceImport = false);
bool ImportDefinition(RecordDecl *From, RecordDecl *To);
TemplateParameterList *ImportTemplateParameterList(
TemplateParameterList *Params);
TemplateArgument ImportTemplateArgument(const TemplateArgument &From);
bool ImportTemplateArguments(const TemplateArgument *FromArgs,
unsigned NumFromArgs,
llvm::SmallVectorImpl<TemplateArgument> &ToArgs);
bool IsStructuralMatch(RecordDecl *FromRecord, RecordDecl *ToRecord);
bool IsStructuralMatch(EnumDecl *FromEnum, EnumDecl *ToRecord);
bool IsStructuralMatch(ClassTemplateDecl *From, ClassTemplateDecl *To);
Decl *VisitDecl(Decl *D);
Decl *VisitNamespaceDecl(NamespaceDecl *D);
Decl *VisitTypedefDecl(TypedefDecl *D);
Decl *VisitEnumDecl(EnumDecl *D);
Decl *VisitRecordDecl(RecordDecl *D);
Decl *VisitEnumConstantDecl(EnumConstantDecl *D);
Decl *VisitFunctionDecl(FunctionDecl *D);
Decl *VisitCXXMethodDecl(CXXMethodDecl *D);
Decl *VisitCXXConstructorDecl(CXXConstructorDecl *D);
Decl *VisitCXXDestructorDecl(CXXDestructorDecl *D);
Decl *VisitCXXConversionDecl(CXXConversionDecl *D);
Decl *VisitFieldDecl(FieldDecl *D);
Decl *VisitIndirectFieldDecl(IndirectFieldDecl *D);
Decl *VisitObjCIvarDecl(ObjCIvarDecl *D);
Decl *VisitVarDecl(VarDecl *D);
Decl *VisitImplicitParamDecl(ImplicitParamDecl *D);
Decl *VisitParmVarDecl(ParmVarDecl *D);
Decl *VisitObjCMethodDecl(ObjCMethodDecl *D);
Decl *VisitObjCCategoryDecl(ObjCCategoryDecl *D);
Decl *VisitObjCProtocolDecl(ObjCProtocolDecl *D);
Decl *VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
Decl *VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
Decl *VisitObjCImplementationDecl(ObjCImplementationDecl *D);
Decl *VisitObjCPropertyDecl(ObjCPropertyDecl *D);
Decl *VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
Decl *VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D);
Decl *VisitObjCClassDecl(ObjCClassDecl *D);
Decl *VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
Decl *VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
Decl *VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
Decl *VisitClassTemplateDecl(ClassTemplateDecl *D);
Decl *VisitClassTemplateSpecializationDecl(
ClassTemplateSpecializationDecl *D);
// Importing statements
Stmt *VisitStmt(Stmt *S);
// Importing expressions
Expr *VisitExpr(Expr *E);
Expr *VisitDeclRefExpr(DeclRefExpr *E);
Expr *VisitIntegerLiteral(IntegerLiteral *E);
Expr *VisitCharacterLiteral(CharacterLiteral *E);
Expr *VisitParenExpr(ParenExpr *E);
Expr *VisitUnaryOperator(UnaryOperator *E);
Expr *VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *E);
Expr *VisitBinaryOperator(BinaryOperator *E);
Expr *VisitCompoundAssignOperator(CompoundAssignOperator *E);
Expr *VisitImplicitCastExpr(ImplicitCastExpr *E);
Expr *VisitCStyleCastExpr(CStyleCastExpr *E);
};
}
//----------------------------------------------------------------------------
// Structural Equivalence
//----------------------------------------------------------------------------
namespace {
struct StructuralEquivalenceContext {
/// \brief AST contexts for which we are checking structural equivalence.
ASTContext &C1, &C2;
/// \brief The set of "tentative" equivalences between two canonical
/// declarations, mapping from a declaration in the first context to the
/// declaration in the second context that we believe to be equivalent.
llvm::DenseMap<Decl *, Decl *> TentativeEquivalences;
/// \brief Queue of declarations in the first context whose equivalence
/// with a declaration in the second context still needs to be verified.
std::deque<Decl *> DeclsToCheck;
/// \brief Declaration (from, to) pairs that are known not to be equivalent
/// (which we have already complained about).
llvm::DenseSet<std::pair<Decl *, Decl *> > &NonEquivalentDecls;
/// \brief Whether we're being strict about the spelling of types when
/// unifying two types.
bool StrictTypeSpelling;
StructuralEquivalenceContext(ASTContext &C1, ASTContext &C2,
llvm::DenseSet<std::pair<Decl *, Decl *> > &NonEquivalentDecls,
bool StrictTypeSpelling = false)
: C1(C1), C2(C2), NonEquivalentDecls(NonEquivalentDecls),
StrictTypeSpelling(StrictTypeSpelling) { }
/// \brief Determine whether the two declarations are structurally
/// equivalent.
bool IsStructurallyEquivalent(Decl *D1, Decl *D2);
/// \brief Determine whether the two types are structurally equivalent.
bool IsStructurallyEquivalent(QualType T1, QualType T2);
private:
/// \brief Finish checking all of the structural equivalences.
///
/// \returns true if an error occurred, false otherwise.
bool Finish();
public:
DiagnosticBuilder Diag1(SourceLocation Loc, unsigned DiagID) {
return C1.getDiagnostics().Report(Loc, DiagID);
}
DiagnosticBuilder Diag2(SourceLocation Loc, unsigned DiagID) {
return C2.getDiagnostics().Report(Loc, DiagID);
}
};
}
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
QualType T1, QualType T2);
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
Decl *D1, Decl *D2);
/// \brief Determine if two APInts have the same value, after zero-extending
/// one of them (if needed!) to ensure that the bit-widths match.
static bool IsSameValue(const llvm::APInt &I1, const llvm::APInt &I2) {
if (I1.getBitWidth() == I2.getBitWidth())
return I1 == I2;
if (I1.getBitWidth() > I2.getBitWidth())
return I1 == I2.zext(I1.getBitWidth());
return I1.zext(I2.getBitWidth()) == I2;
}
/// \brief Determine if two APSInts have the same value, zero- or sign-extending
/// as needed.
static bool IsSameValue(const llvm::APSInt &I1, const llvm::APSInt &I2) {
if (I1.getBitWidth() == I2.getBitWidth() && I1.isSigned() == I2.isSigned())
return I1 == I2;
// Check for a bit-width mismatch.
if (I1.getBitWidth() > I2.getBitWidth())
return IsSameValue(I1, I2.extend(I1.getBitWidth()));
else if (I2.getBitWidth() > I1.getBitWidth())
return IsSameValue(I1.extend(I2.getBitWidth()), I2);
// We have a signedness mismatch. Turn the signed value into an unsigned
// value.
if (I1.isSigned()) {
if (I1.isNegative())
return false;
return llvm::APSInt(I1, true) == I2;
}
if (I2.isNegative())
return false;
return I1 == llvm::APSInt(I2, true);
}
/// \brief Determine structural equivalence of two expressions.
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
Expr *E1, Expr *E2) {
if (!E1 || !E2)
return E1 == E2;
// FIXME: Actually perform a structural comparison!
return true;
}
/// \brief Determine whether two identifiers are equivalent.
static bool IsStructurallyEquivalent(const IdentifierInfo *Name1,
const IdentifierInfo *Name2) {
if (!Name1 || !Name2)
return Name1 == Name2;
return Name1->getName() == Name2->getName();
}
/// \brief Determine whether two nested-name-specifiers are equivalent.
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
NestedNameSpecifier *NNS1,
NestedNameSpecifier *NNS2) {
// FIXME: Implement!
return true;
}
/// \brief Determine whether two template arguments are equivalent.
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
const TemplateArgument &Arg1,
const TemplateArgument &Arg2) {
if (Arg1.getKind() != Arg2.getKind())
return false;
switch (Arg1.getKind()) {
case TemplateArgument::Null:
return true;
case TemplateArgument::Type:
return Context.IsStructurallyEquivalent(Arg1.getAsType(), Arg2.getAsType());
case TemplateArgument::Integral:
if (!Context.IsStructurallyEquivalent(Arg1.getIntegralType(),
Arg2.getIntegralType()))
return false;
return IsSameValue(*Arg1.getAsIntegral(), *Arg2.getAsIntegral());
case TemplateArgument::Declaration:
return Context.IsStructurallyEquivalent(Arg1.getAsDecl(), Arg2.getAsDecl());
case TemplateArgument::Template:
return IsStructurallyEquivalent(Context,
Arg1.getAsTemplate(),
Arg2.getAsTemplate());
case TemplateArgument::TemplateExpansion:
return IsStructurallyEquivalent(Context,
Arg1.getAsTemplateOrTemplatePattern(),
Arg2.getAsTemplateOrTemplatePattern());
case TemplateArgument::Expression:
return IsStructurallyEquivalent(Context,
Arg1.getAsExpr(), Arg2.getAsExpr());
case TemplateArgument::Pack:
if (Arg1.pack_size() != Arg2.pack_size())
return false;
for (unsigned I = 0, N = Arg1.pack_size(); I != N; ++I)
if (!IsStructurallyEquivalent(Context,
Arg1.pack_begin()[I],
Arg2.pack_begin()[I]))
return false;
return true;
}
llvm_unreachable("Invalid template argument kind");
return true;
}
/// \brief Determine structural equivalence for the common part of array
/// types.
static bool IsArrayStructurallyEquivalent(StructuralEquivalenceContext &Context,
const ArrayType *Array1,
const ArrayType *Array2) {
if (!IsStructurallyEquivalent(Context,
Array1->getElementType(),
Array2->getElementType()))
return false;
if (Array1->getSizeModifier() != Array2->getSizeModifier())
return false;
if (Array1->getIndexTypeQualifiers() != Array2->getIndexTypeQualifiers())
return false;
return true;
}
/// \brief Determine structural equivalence of two types.
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
QualType T1, QualType T2) {
if (T1.isNull() || T2.isNull())
return T1.isNull() && T2.isNull();
if (!Context.StrictTypeSpelling) {
// We aren't being strict about token-to-token equivalence of types,
// so map down to the canonical type.
T1 = Context.C1.getCanonicalType(T1);
T2 = Context.C2.getCanonicalType(T2);
}
if (T1.getQualifiers() != T2.getQualifiers())
return false;
Type::TypeClass TC = T1->getTypeClass();
if (T1->getTypeClass() != T2->getTypeClass()) {
// Compare function types with prototypes vs. without prototypes as if
// both did not have prototypes.
if (T1->getTypeClass() == Type::FunctionProto &&
T2->getTypeClass() == Type::FunctionNoProto)
TC = Type::FunctionNoProto;
else if (T1->getTypeClass() == Type::FunctionNoProto &&
T2->getTypeClass() == Type::FunctionProto)
TC = Type::FunctionNoProto;
else
return false;
}
switch (TC) {
case Type::Builtin:
// FIXME: Deal with Char_S/Char_U.
if (cast<BuiltinType>(T1)->getKind() != cast<BuiltinType>(T2)->getKind())
return false;
break;
case Type::Complex:
if (!IsStructurallyEquivalent(Context,
cast<ComplexType>(T1)->getElementType(),
cast<ComplexType>(T2)->getElementType()))
return false;
break;
case Type::Pointer:
if (!IsStructurallyEquivalent(Context,
cast<PointerType>(T1)->getPointeeType(),
cast<PointerType>(T2)->getPointeeType()))
return false;
break;
case Type::BlockPointer:
if (!IsStructurallyEquivalent(Context,
cast<BlockPointerType>(T1)->getPointeeType(),
cast<BlockPointerType>(T2)->getPointeeType()))
return false;
break;
case Type::LValueReference:
case Type::RValueReference: {
const ReferenceType *Ref1 = cast<ReferenceType>(T1);
const ReferenceType *Ref2 = cast<ReferenceType>(T2);
if (Ref1->isSpelledAsLValue() != Ref2->isSpelledAsLValue())
return false;
if (Ref1->isInnerRef() != Ref2->isInnerRef())
return false;
if (!IsStructurallyEquivalent(Context,
Ref1->getPointeeTypeAsWritten(),
Ref2->getPointeeTypeAsWritten()))
return false;
break;
}
case Type::MemberPointer: {
const MemberPointerType *MemPtr1 = cast<MemberPointerType>(T1);
const MemberPointerType *MemPtr2 = cast<MemberPointerType>(T2);
if (!IsStructurallyEquivalent(Context,
MemPtr1->getPointeeType(),
MemPtr2->getPointeeType()))
return false;
if (!IsStructurallyEquivalent(Context,
QualType(MemPtr1->getClass(), 0),
QualType(MemPtr2->getClass(), 0)))
return false;
break;
}
case Type::ConstantArray: {
const ConstantArrayType *Array1 = cast<ConstantArrayType>(T1);
const ConstantArrayType *Array2 = cast<ConstantArrayType>(T2);
if (!IsSameValue(Array1->getSize(), Array2->getSize()))
return false;
if (!IsArrayStructurallyEquivalent(Context, Array1, Array2))
return false;
break;
}
case Type::IncompleteArray:
if (!IsArrayStructurallyEquivalent(Context,
cast<ArrayType>(T1),
cast<ArrayType>(T2)))
return false;
break;
case Type::VariableArray: {
const VariableArrayType *Array1 = cast<VariableArrayType>(T1);
const VariableArrayType *Array2 = cast<VariableArrayType>(T2);
if (!IsStructurallyEquivalent(Context,
Array1->getSizeExpr(), Array2->getSizeExpr()))
return false;
if (!IsArrayStructurallyEquivalent(Context, Array1, Array2))
return false;
break;
}
case Type::DependentSizedArray: {
const DependentSizedArrayType *Array1 = cast<DependentSizedArrayType>(T1);
const DependentSizedArrayType *Array2 = cast<DependentSizedArrayType>(T2);
if (!IsStructurallyEquivalent(Context,
Array1->getSizeExpr(), Array2->getSizeExpr()))
return false;
if (!IsArrayStructurallyEquivalent(Context, Array1, Array2))
return false;
break;
}
case Type::DependentSizedExtVector: {
const DependentSizedExtVectorType *Vec1
= cast<DependentSizedExtVectorType>(T1);
const DependentSizedExtVectorType *Vec2
= cast<DependentSizedExtVectorType>(T2);
if (!IsStructurallyEquivalent(Context,
Vec1->getSizeExpr(), Vec2->getSizeExpr()))
return false;
if (!IsStructurallyEquivalent(Context,
Vec1->getElementType(),
Vec2->getElementType()))
return false;
break;
}
case Type::Vector:
case Type::ExtVector: {
const VectorType *Vec1 = cast<VectorType>(T1);
const VectorType *Vec2 = cast<VectorType>(T2);
if (!IsStructurallyEquivalent(Context,
Vec1->getElementType(),
Vec2->getElementType()))
return false;
if (Vec1->getNumElements() != Vec2->getNumElements())
return false;
if (Vec1->getVectorKind() != Vec2->getVectorKind())
return false;
break;
}
case Type::FunctionProto: {
const FunctionProtoType *Proto1 = cast<FunctionProtoType>(T1);
const FunctionProtoType *Proto2 = cast<FunctionProtoType>(T2);
if (Proto1->getNumArgs() != Proto2->getNumArgs())
return false;
for (unsigned I = 0, N = Proto1->getNumArgs(); I != N; ++I) {
if (!IsStructurallyEquivalent(Context,
Proto1->getArgType(I),
Proto2->getArgType(I)))
return false;
}
if (Proto1->isVariadic() != Proto2->isVariadic())
return false;
if (Proto1->getExceptionSpecType() != Proto2->getExceptionSpecType())
return false;
if (Proto1->getExceptionSpecType() == EST_Dynamic) {
if (Proto1->getNumExceptions() != Proto2->getNumExceptions())
return false;
for (unsigned I = 0, N = Proto1->getNumExceptions(); I != N; ++I) {
if (!IsStructurallyEquivalent(Context,
Proto1->getExceptionType(I),
Proto2->getExceptionType(I)))
return false;
}
} else if (Proto1->getExceptionSpecType() == EST_ComputedNoexcept) {
if (!IsStructurallyEquivalent(Context,
Proto1->getNoexceptExpr(),
Proto2->getNoexceptExpr()))
return false;
}
if (Proto1->getTypeQuals() != Proto2->getTypeQuals())
return false;
// Fall through to check the bits common with FunctionNoProtoType.
}
case Type::FunctionNoProto: {
const FunctionType *Function1 = cast<FunctionType>(T1);
const FunctionType *Function2 = cast<FunctionType>(T2);
if (!IsStructurallyEquivalent(Context,
Function1->getResultType(),
Function2->getResultType()))
return false;
if (Function1->getExtInfo() != Function2->getExtInfo())
return false;
break;
}
case Type::UnresolvedUsing:
if (!IsStructurallyEquivalent(Context,
cast<UnresolvedUsingType>(T1)->getDecl(),
cast<UnresolvedUsingType>(T2)->getDecl()))
return false;
break;
case Type::Attributed:
if (!IsStructurallyEquivalent(Context,
cast<AttributedType>(T1)->getModifiedType(),
cast<AttributedType>(T2)->getModifiedType()))
return false;
if (!IsStructurallyEquivalent(Context,
cast<AttributedType>(T1)->getEquivalentType(),
cast<AttributedType>(T2)->getEquivalentType()))
return false;
break;
case Type::Paren:
if (!IsStructurallyEquivalent(Context,
cast<ParenType>(T1)->getInnerType(),
cast<ParenType>(T2)->getInnerType()))
return false;
break;
case Type::Typedef:
if (!IsStructurallyEquivalent(Context,
cast<TypedefType>(T1)->getDecl(),
cast<TypedefType>(T2)->getDecl()))
return false;
break;
case Type::TypeOfExpr:
if (!IsStructurallyEquivalent(Context,
cast<TypeOfExprType>(T1)->getUnderlyingExpr(),
cast<TypeOfExprType>(T2)->getUnderlyingExpr()))
return false;
break;
case Type::TypeOf:
if (!IsStructurallyEquivalent(Context,
cast<TypeOfType>(T1)->getUnderlyingType(),
cast<TypeOfType>(T2)->getUnderlyingType()))
return false;
break;
case Type::Decltype:
if (!IsStructurallyEquivalent(Context,
cast<DecltypeType>(T1)->getUnderlyingExpr(),
cast<DecltypeType>(T2)->getUnderlyingExpr()))
return false;
break;
case Type::Auto:
if (!IsStructurallyEquivalent(Context,
cast<AutoType>(T1)->getDeducedType(),
cast<AutoType>(T2)->getDeducedType()))
return false;
break;
case Type::Record:
case Type::Enum:
if (!IsStructurallyEquivalent(Context,
cast<TagType>(T1)->getDecl(),
cast<TagType>(T2)->getDecl()))
return false;
break;
case Type::TemplateTypeParm: {
const TemplateTypeParmType *Parm1 = cast<TemplateTypeParmType>(T1);
const TemplateTypeParmType *Parm2 = cast<TemplateTypeParmType>(T2);
if (Parm1->getDepth() != Parm2->getDepth())
return false;
if (Parm1->getIndex() != Parm2->getIndex())
return false;
if (Parm1->isParameterPack() != Parm2->isParameterPack())
return false;
// Names of template type parameters are never significant.
break;
}
case Type::SubstTemplateTypeParm: {
const SubstTemplateTypeParmType *Subst1
= cast<SubstTemplateTypeParmType>(T1);
const SubstTemplateTypeParmType *Subst2
= cast<SubstTemplateTypeParmType>(T2);
if (!IsStructurallyEquivalent(Context,
QualType(Subst1->getReplacedParameter(), 0),
QualType(Subst2->getReplacedParameter(), 0)))
return false;
if (!IsStructurallyEquivalent(Context,
Subst1->getReplacementType(),
Subst2->getReplacementType()))
return false;
break;
}
case Type::SubstTemplateTypeParmPack: {
const SubstTemplateTypeParmPackType *Subst1
= cast<SubstTemplateTypeParmPackType>(T1);
const SubstTemplateTypeParmPackType *Subst2
= cast<SubstTemplateTypeParmPackType>(T2);
if (!IsStructurallyEquivalent(Context,
QualType(Subst1->getReplacedParameter(), 0),
QualType(Subst2->getReplacedParameter(), 0)))
return false;
if (!IsStructurallyEquivalent(Context,
Subst1->getArgumentPack(),
Subst2->getArgumentPack()))
return false;
break;
}
case Type::TemplateSpecialization: {
const TemplateSpecializationType *Spec1
= cast<TemplateSpecializationType>(T1);
const TemplateSpecializationType *Spec2
= cast<TemplateSpecializationType>(T2);
if (!IsStructurallyEquivalent(Context,
Spec1->getTemplateName(),
Spec2->getTemplateName()))
return false;
if (Spec1->getNumArgs() != Spec2->getNumArgs())
return false;
for (unsigned I = 0, N = Spec1->getNumArgs(); I != N; ++I) {
if (!IsStructurallyEquivalent(Context,
Spec1->getArg(I), Spec2->getArg(I)))
return false;
}
break;
}
case Type::Elaborated: {
const ElaboratedType *Elab1 = cast<ElaboratedType>(T1);
const ElaboratedType *Elab2 = cast<ElaboratedType>(T2);
// CHECKME: what if a keyword is ETK_None or ETK_typename ?
if (Elab1->getKeyword() != Elab2->getKeyword())
return false;
if (!IsStructurallyEquivalent(Context,
Elab1->getQualifier(),
Elab2->getQualifier()))
return false;
if (!IsStructurallyEquivalent(Context,
Elab1->getNamedType(),
Elab2->getNamedType()))
return false;
break;
}
case Type::InjectedClassName: {
const InjectedClassNameType *Inj1 = cast<InjectedClassNameType>(T1);
const InjectedClassNameType *Inj2 = cast<InjectedClassNameType>(T2);
if (!IsStructurallyEquivalent(Context,
Inj1->getInjectedSpecializationType(),
Inj2->getInjectedSpecializationType()))
return false;
break;
}
case Type::DependentName: {
const DependentNameType *Typename1 = cast<DependentNameType>(T1);
const DependentNameType *Typename2 = cast<DependentNameType>(T2);
if (!IsStructurallyEquivalent(Context,
Typename1->getQualifier(),
Typename2->getQualifier()))
return false;
if (!IsStructurallyEquivalent(Typename1->getIdentifier(),
Typename2->getIdentifier()))
return false;
break;
}
case Type::DependentTemplateSpecialization: {
const DependentTemplateSpecializationType *Spec1 =
cast<DependentTemplateSpecializationType>(T1);
const DependentTemplateSpecializationType *Spec2 =
cast<DependentTemplateSpecializationType>(T2);
if (!IsStructurallyEquivalent(Context,
Spec1->getQualifier(),
Spec2->getQualifier()))
return false;
if (!IsStructurallyEquivalent(Spec1->getIdentifier(),
Spec2->getIdentifier()))
return false;
if (Spec1->getNumArgs() != Spec2->getNumArgs())
return false;
for (unsigned I = 0, N = Spec1->getNumArgs(); I != N; ++I) {
if (!IsStructurallyEquivalent(Context,
Spec1->getArg(I), Spec2->getArg(I)))
return false;
}
break;
}
case Type::PackExpansion:
if (!IsStructurallyEquivalent(Context,
cast<PackExpansionType>(T1)->getPattern(),
cast<PackExpansionType>(T2)->getPattern()))
return false;
break;
case Type::ObjCInterface: {
const ObjCInterfaceType *Iface1 = cast<ObjCInterfaceType>(T1);
const ObjCInterfaceType *Iface2 = cast<ObjCInterfaceType>(T2);
if (!IsStructurallyEquivalent(Context,
Iface1->getDecl(), Iface2->getDecl()))
return false;
break;
}
case Type::ObjCObject: {
const ObjCObjectType *Obj1 = cast<ObjCObjectType>(T1);
const ObjCObjectType *Obj2 = cast<ObjCObjectType>(T2);
if (!IsStructurallyEquivalent(Context,
Obj1->getBaseType(),
Obj2->getBaseType()))
return false;
if (Obj1->getNumProtocols() != Obj2->getNumProtocols())
return false;
for (unsigned I = 0, N = Obj1->getNumProtocols(); I != N; ++I) {
if (!IsStructurallyEquivalent(Context,
Obj1->getProtocol(I),
Obj2->getProtocol(I)))
return false;
}
break;
}
case Type::ObjCObjectPointer: {
const ObjCObjectPointerType *Ptr1 = cast<ObjCObjectPointerType>(T1);
const ObjCObjectPointerType *Ptr2 = cast<ObjCObjectPointerType>(T2);
if (!IsStructurallyEquivalent(Context,
Ptr1->getPointeeType(),
Ptr2->getPointeeType()))
return false;
break;
}
} // end switch
return true;
}
/// \brief Determine structural equivalence of two records.
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
RecordDecl *D1, RecordDecl *D2) {
if (D1->isUnion() != D2->isUnion()) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
Context.Diag1(D1->getLocation(), diag::note_odr_tag_kind_here)
<< D1->getDeclName() << (unsigned)D1->getTagKind();
return false;
}
// If both declarations are class template specializations, we know
// the ODR applies, so check the template and template arguments.
ClassTemplateSpecializationDecl *Spec1
= dyn_cast<ClassTemplateSpecializationDecl>(D1);
ClassTemplateSpecializationDecl *Spec2
= dyn_cast<ClassTemplateSpecializationDecl>(D2);
if (Spec1 && Spec2) {
// Check that the specialized templates are the same.
if (!IsStructurallyEquivalent(Context, Spec1->getSpecializedTemplate(),
Spec2->getSpecializedTemplate()))
return false;
// Check that the template arguments are the same.
if (Spec1->getTemplateArgs().size() != Spec2->getTemplateArgs().size())
return false;
for (unsigned I = 0, N = Spec1->getTemplateArgs().size(); I != N; ++I)
if (!IsStructurallyEquivalent(Context,
Spec1->getTemplateArgs().get(I),
Spec2->getTemplateArgs().get(I)))
return false;
}
// If one is a class template specialization and the other is not, these
// structures are diferent.
else if (Spec1 || Spec2)
return false;
// Compare the definitions of these two records. If either or both are
// incomplete, we assume that they are equivalent.
D1 = D1->getDefinition();
D2 = D2->getDefinition();
if (!D1 || !D2)
return true;
if (CXXRecordDecl *D1CXX = dyn_cast<CXXRecordDecl>(D1)) {
if (CXXRecordDecl *D2CXX = dyn_cast<CXXRecordDecl>(D2)) {
if (D1CXX->getNumBases() != D2CXX->getNumBases()) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
Context.Diag2(D2->getLocation(), diag::note_odr_number_of_bases)
<< D2CXX->getNumBases();
Context.Diag1(D1->getLocation(), diag::note_odr_number_of_bases)
<< D1CXX->getNumBases();
return false;
}
// Check the base classes.
for (CXXRecordDecl::base_class_iterator Base1 = D1CXX->bases_begin(),
BaseEnd1 = D1CXX->bases_end(),
Base2 = D2CXX->bases_begin();
Base1 != BaseEnd1;
++Base1, ++Base2) {
if (!IsStructurallyEquivalent(Context,
Base1->getType(), Base2->getType())) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
Context.Diag2(Base2->getSourceRange().getBegin(), diag::note_odr_base)
<< Base2->getType()
<< Base2->getSourceRange();
Context.Diag1(Base1->getSourceRange().getBegin(), diag::note_odr_base)
<< Base1->getType()
<< Base1->getSourceRange();
return false;
}
// Check virtual vs. non-virtual inheritance mismatch.
if (Base1->isVirtual() != Base2->isVirtual()) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
Context.Diag2(Base2->getSourceRange().getBegin(),
diag::note_odr_virtual_base)
<< Base2->isVirtual() << Base2->getSourceRange();
Context.Diag1(Base1->getSourceRange().getBegin(), diag::note_odr_base)
<< Base1->isVirtual()
<< Base1->getSourceRange();
return false;
}
}
} else if (D1CXX->getNumBases() > 0) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
const CXXBaseSpecifier *Base1 = D1CXX->bases_begin();
Context.Diag1(Base1->getSourceRange().getBegin(), diag::note_odr_base)
<< Base1->getType()
<< Base1->getSourceRange();
Context.Diag2(D2->getLocation(), diag::note_odr_missing_base);
return false;
}
}
// Check the fields for consistency.
CXXRecordDecl::field_iterator Field2 = D2->field_begin(),
Field2End = D2->field_end();
for (CXXRecordDecl::field_iterator Field1 = D1->field_begin(),
Field1End = D1->field_end();
Field1 != Field1End;
++Field1, ++Field2) {
if (Field2 == Field2End) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
Context.Diag1(Field1->getLocation(), diag::note_odr_field)
<< Field1->getDeclName() << Field1->getType();
Context.Diag2(D2->getLocation(), diag::note_odr_missing_field);
return false;
}
if (!IsStructurallyEquivalent(Context,
Field1->getType(), Field2->getType())) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
Context.Diag2(Field2->getLocation(), diag::note_odr_field)
<< Field2->getDeclName() << Field2->getType();
Context.Diag1(Field1->getLocation(), diag::note_odr_field)
<< Field1->getDeclName() << Field1->getType();
return false;
}
if (Field1->isBitField() != Field2->isBitField()) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
if (Field1->isBitField()) {
llvm::APSInt Bits;
Field1->getBitWidth()->isIntegerConstantExpr(Bits, Context.C1);
Context.Diag1(Field1->getLocation(), diag::note_odr_bit_field)
<< Field1->getDeclName() << Field1->getType()
<< Bits.toString(10, false);
Context.Diag2(Field2->getLocation(), diag::note_odr_not_bit_field)
<< Field2->getDeclName();
} else {
llvm::APSInt Bits;
Field2->getBitWidth()->isIntegerConstantExpr(Bits, Context.C2);
Context.Diag2(Field2->getLocation(), diag::note_odr_bit_field)
<< Field2->getDeclName() << Field2->getType()
<< Bits.toString(10, false);
Context.Diag1(Field1->getLocation(),
diag::note_odr_not_bit_field)
<< Field1->getDeclName();
}
return false;
}
if (Field1->isBitField()) {
// Make sure that the bit-fields are the same length.
llvm::APSInt Bits1, Bits2;
if (!Field1->getBitWidth()->isIntegerConstantExpr(Bits1, Context.C1))
return false;
if (!Field2->getBitWidth()->isIntegerConstantExpr(Bits2, Context.C2))
return false;
if (!IsSameValue(Bits1, Bits2)) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
Context.Diag2(Field2->getLocation(), diag::note_odr_bit_field)
<< Field2->getDeclName() << Field2->getType()
<< Bits2.toString(10, false);
Context.Diag1(Field1->getLocation(), diag::note_odr_bit_field)
<< Field1->getDeclName() << Field1->getType()
<< Bits1.toString(10, false);
return false;
}
}
}
if (Field2 != Field2End) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
Context.Diag2(Field2->getLocation(), diag::note_odr_field)
<< Field2->getDeclName() << Field2->getType();
Context.Diag1(D1->getLocation(), diag::note_odr_missing_field);
return false;
}
return true;
}
/// \brief Determine structural equivalence of two enums.
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
EnumDecl *D1, EnumDecl *D2) {
EnumDecl::enumerator_iterator EC2 = D2->enumerator_begin(),
EC2End = D2->enumerator_end();
for (EnumDecl::enumerator_iterator EC1 = D1->enumerator_begin(),
EC1End = D1->enumerator_end();
EC1 != EC1End; ++EC1, ++EC2) {
if (EC2 == EC2End) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
Context.Diag1(EC1->getLocation(), diag::note_odr_enumerator)
<< EC1->getDeclName()
<< EC1->getInitVal().toString(10);
Context.Diag2(D2->getLocation(), diag::note_odr_missing_enumerator);
return false;
}
llvm::APSInt Val1 = EC1->getInitVal();
llvm::APSInt Val2 = EC2->getInitVal();
if (!IsSameValue(Val1, Val2) ||
!IsStructurallyEquivalent(EC1->getIdentifier(), EC2->getIdentifier())) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
Context.Diag2(EC2->getLocation(), diag::note_odr_enumerator)
<< EC2->getDeclName()
<< EC2->getInitVal().toString(10);
Context.Diag1(EC1->getLocation(), diag::note_odr_enumerator)
<< EC1->getDeclName()
<< EC1->getInitVal().toString(10);
return false;
}
}
if (EC2 != EC2End) {
Context.Diag2(D2->getLocation(), diag::warn_odr_tag_type_inconsistent)
<< Context.C2.getTypeDeclType(D2);
Context.Diag2(EC2->getLocation(), diag::note_odr_enumerator)
<< EC2->getDeclName()
<< EC2->getInitVal().toString(10);
Context.Diag1(D1->getLocation(), diag::note_odr_missing_enumerator);
return false;
}
return true;
}
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
TemplateParameterList *Params1,
TemplateParameterList *Params2) {
if (Params1->size() != Params2->size()) {
Context.Diag2(Params2->getTemplateLoc(),
diag::err_odr_different_num_template_parameters)
<< Params1->size() << Params2->size();
Context.Diag1(Params1->getTemplateLoc(),
diag::note_odr_template_parameter_list);
return false;
}
for (unsigned I = 0, N = Params1->size(); I != N; ++I) {
if (Params1->getParam(I)->getKind() != Params2->getParam(I)->getKind()) {
Context.Diag2(Params2->getParam(I)->getLocation(),
diag::err_odr_different_template_parameter_kind);
Context.Diag1(Params1->getParam(I)->getLocation(),
diag::note_odr_template_parameter_here);
return false;
}
if (!Context.IsStructurallyEquivalent(Params1->getParam(I),
Params2->getParam(I))) {
return false;
}
}
return true;
}
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
TemplateTypeParmDecl *D1,
TemplateTypeParmDecl *D2) {
if (D1->isParameterPack() != D2->isParameterPack()) {
Context.Diag2(D2->getLocation(), diag::err_odr_parameter_pack_non_pack)
<< D2->isParameterPack();
Context.Diag1(D1->getLocation(), diag::note_odr_parameter_pack_non_pack)
<< D1->isParameterPack();
return false;
}
return true;
}
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
NonTypeTemplateParmDecl *D1,
NonTypeTemplateParmDecl *D2) {
// FIXME: Enable once we have variadic templates.
#if 0
if (D1->isParameterPack() != D2->isParameterPack()) {
Context.Diag2(D2->getLocation(), diag::err_odr_parameter_pack_non_pack)
<< D2->isParameterPack();
Context.Diag1(D1->getLocation(), diag::note_odr_parameter_pack_non_pack)
<< D1->isParameterPack();
return false;
}
#endif
// Check types.
if (!Context.IsStructurallyEquivalent(D1->getType(), D2->getType())) {
Context.Diag2(D2->getLocation(),
diag::err_odr_non_type_parameter_type_inconsistent)
<< D2->getType() << D1->getType();
Context.Diag1(D1->getLocation(), diag::note_odr_value_here)
<< D1->getType();
return false;
}
return true;
}
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
TemplateTemplateParmDecl *D1,
TemplateTemplateParmDecl *D2) {
// FIXME: Enable once we have variadic templates.
#if 0
if (D1->isParameterPack() != D2->isParameterPack()) {
Context.Diag2(D2->getLocation(), diag::err_odr_parameter_pack_non_pack)
<< D2->isParameterPack();
Context.Diag1(D1->getLocation(), diag::note_odr_parameter_pack_non_pack)
<< D1->isParameterPack();
return false;
}
#endif
// Check template parameter lists.
return IsStructurallyEquivalent(Context, D1->getTemplateParameters(),
D2->getTemplateParameters());
}
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
ClassTemplateDecl *D1,
ClassTemplateDecl *D2) {
// Check template parameters.
if (!IsStructurallyEquivalent(Context,
D1->getTemplateParameters(),
D2->getTemplateParameters()))
return false;
// Check the templated declaration.
return Context.IsStructurallyEquivalent(D1->getTemplatedDecl(),
D2->getTemplatedDecl());
}
/// \brief Determine structural equivalence of two declarations.
static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context,
Decl *D1, Decl *D2) {
// FIXME: Check for known structural equivalences via a callback of some sort.
// Check whether we already know that these two declarations are not
// structurally equivalent.
if (Context.NonEquivalentDecls.count(std::make_pair(D1->getCanonicalDecl(),
D2->getCanonicalDecl())))
return false;
// Determine whether we've already produced a tentative equivalence for D1.
Decl *&EquivToD1 = Context.TentativeEquivalences[D1->getCanonicalDecl()];
if (EquivToD1)
return EquivToD1 == D2->getCanonicalDecl();
// Produce a tentative equivalence D1 <-> D2, which will be checked later.
EquivToD1 = D2->getCanonicalDecl();
Context.DeclsToCheck.push_back(D1->getCanonicalDecl());
return true;
}
bool StructuralEquivalenceContext::IsStructurallyEquivalent(Decl *D1,
Decl *D2) {
if (!::IsStructurallyEquivalent(*this, D1, D2))
return false;
return !Finish();
}
bool StructuralEquivalenceContext::IsStructurallyEquivalent(QualType T1,
QualType T2) {
if (!::IsStructurallyEquivalent(*this, T1, T2))
return false;
return !Finish();
}
bool StructuralEquivalenceContext::Finish() {
while (!DeclsToCheck.empty()) {
// Check the next declaration.
Decl *D1 = DeclsToCheck.front();
DeclsToCheck.pop_front();
Decl *D2 = TentativeEquivalences[D1];
assert(D2 && "Unrecorded tentative equivalence?");
bool Equivalent = true;
// FIXME: Switch on all declaration kinds. For now, we're just going to
// check the obvious ones.
if (RecordDecl *Record1 = dyn_cast<RecordDecl>(D1)) {
if (RecordDecl *Record2 = dyn_cast<RecordDecl>(D2)) {
// Check for equivalent structure names.
IdentifierInfo *Name1 = Record1->getIdentifier();
if (!Name1 && Record1->getTypedefForAnonDecl())
Name1 = Record1->getTypedefForAnonDecl()->getIdentifier();
IdentifierInfo *Name2 = Record2->getIdentifier();
if (!Name2 && Record2->getTypedefForAnonDecl())
Name2 = Record2->getTypedefForAnonDecl()->getIdentifier();
if (!::IsStructurallyEquivalent(Name1, Name2) ||
!::IsStructurallyEquivalent(*this, Record1, Record2))
Equivalent = false;
} else {
// Record/non-record mismatch.
Equivalent = false;
}
} else if (EnumDecl *Enum1 = dyn_cast<EnumDecl>(D1)) {
if (EnumDecl *Enum2 = dyn_cast<EnumDecl>(D2)) {
// Check for equivalent enum names.
IdentifierInfo *Name1 = Enum1->getIdentifier();
if (!Name1 && Enum1->getTypedefForAnonDecl())
Name1 = Enum1->getTypedefForAnonDecl()->getIdentifier();
IdentifierInfo *Name2 = Enum2->getIdentifier();
if (!Name2 && Enum2->getTypedefForAnonDecl())
Name2 = Enum2->getTypedefForAnonDecl()->getIdentifier();
if (!::IsStructurallyEquivalent(Name1, Name2) ||
!::IsStructurallyEquivalent(*this, Enum1, Enum2))
Equivalent = false;
} else {
// Enum/non-enum mismatch
Equivalent = false;
}
} else if (TypedefDecl *Typedef1 = dyn_cast<TypedefDecl>(D1)) {
if (TypedefDecl *Typedef2 = dyn_cast<TypedefDecl>(D2)) {
if (!::IsStructurallyEquivalent(Typedef1->getIdentifier(),
Typedef2->getIdentifier()) ||
!::IsStructurallyEquivalent(*this,
Typedef1->getUnderlyingType(),
Typedef2->getUnderlyingType()))
Equivalent = false;
} else {
// Typedef/non-typedef mismatch.
Equivalent = false;
}
} else if (ClassTemplateDecl *ClassTemplate1
= dyn_cast<ClassTemplateDecl>(D1)) {
if (ClassTemplateDecl *ClassTemplate2 = dyn_cast<ClassTemplateDecl>(D2)) {
if (!::IsStructurallyEquivalent(ClassTemplate1->getIdentifier(),
ClassTemplate2->getIdentifier()) ||
!::IsStructurallyEquivalent(*this, ClassTemplate1, ClassTemplate2))
Equivalent = false;
} else {
// Class template/non-class-template mismatch.
Equivalent = false;
}
} else if (TemplateTypeParmDecl *TTP1= dyn_cast<TemplateTypeParmDecl>(D1)) {
if (TemplateTypeParmDecl *TTP2 = dyn_cast<TemplateTypeParmDecl>(D2)) {
if (!::IsStructurallyEquivalent(*this, TTP1, TTP2))
Equivalent = false;
} else {
// Kind mismatch.
Equivalent = false;
}
} else if (NonTypeTemplateParmDecl *NTTP1
= dyn_cast<NonTypeTemplateParmDecl>(D1)) {
if (NonTypeTemplateParmDecl *NTTP2
= dyn_cast<NonTypeTemplateParmDecl>(D2)) {
if (!::IsStructurallyEquivalent(*this, NTTP1, NTTP2))
Equivalent = false;
} else {
// Kind mismatch.
Equivalent = false;
}
} else if (TemplateTemplateParmDecl *TTP1
= dyn_cast<TemplateTemplateParmDecl>(D1)) {
if (TemplateTemplateParmDecl *TTP2
= dyn_cast<TemplateTemplateParmDecl>(D2)) {
if (!::IsStructurallyEquivalent(*this, TTP1, TTP2))
Equivalent = false;
} else {
// Kind mismatch.
Equivalent = false;
}
}
if (!Equivalent) {
// Note that these two declarations are not equivalent (and we already
// know about it).
NonEquivalentDecls.insert(std::make_pair(D1->getCanonicalDecl(),
D2->getCanonicalDecl()));
return true;
}
// FIXME: Check other declaration kinds!
}
return false;
}
//----------------------------------------------------------------------------
// Import Types
//----------------------------------------------------------------------------
QualType ASTNodeImporter::VisitType(const Type *T) {
Importer.FromDiag(SourceLocation(), diag::err_unsupported_ast_node)
<< T->getTypeClassName();
return QualType();
}
QualType ASTNodeImporter::VisitBuiltinType(const BuiltinType *T) {
switch (T->getKind()) {
case BuiltinType::Void: return Importer.getToContext().VoidTy;
case BuiltinType::Bool: return Importer.getToContext().BoolTy;
case BuiltinType::Char_U:
// The context we're importing from has an unsigned 'char'. If we're
// importing into a context with a signed 'char', translate to
// 'unsigned char' instead.
if (Importer.getToContext().getLangOptions().CharIsSigned)
return Importer.getToContext().UnsignedCharTy;
return Importer.getToContext().CharTy;
case BuiltinType::UChar: return Importer.getToContext().UnsignedCharTy;
case BuiltinType::Char16:
// FIXME: Make sure that the "to" context supports C++!
return Importer.getToContext().Char16Ty;
case BuiltinType::Char32:
// FIXME: Make sure that the "to" context supports C++!
return Importer.getToContext().Char32Ty;
case BuiltinType::UShort: return Importer.getToContext().UnsignedShortTy;
case BuiltinType::UInt: return Importer.getToContext().UnsignedIntTy;
case BuiltinType::ULong: return Importer.getToContext().UnsignedLongTy;
case BuiltinType::ULongLong:
return Importer.getToContext().UnsignedLongLongTy;
case BuiltinType::UInt128: return Importer.getToContext().UnsignedInt128Ty;
case BuiltinType::Char_S:
// The context we're importing from has an unsigned 'char'. If we're
// importing into a context with a signed 'char', translate to
// 'unsigned char' instead.
if (!Importer.getToContext().getLangOptions().CharIsSigned)
return Importer.getToContext().SignedCharTy;
return Importer.getToContext().CharTy;
case BuiltinType::SChar: return Importer.getToContext().SignedCharTy;
case BuiltinType::WChar_S:
case BuiltinType::WChar_U:
// FIXME: If not in C++, shall we translate to the C equivalent of
// wchar_t?
return Importer.getToContext().WCharTy;
case BuiltinType::Short : return Importer.getToContext().ShortTy;
case BuiltinType::Int : return Importer.getToContext().IntTy;
case BuiltinType::Long : return Importer.getToContext().LongTy;
case BuiltinType::LongLong : return Importer.getToContext().LongLongTy;
case BuiltinType::Int128 : return Importer.getToContext().Int128Ty;
case BuiltinType::Float: return Importer.getToContext().FloatTy;
case BuiltinType::Double: return Importer.getToContext().DoubleTy;
case BuiltinType::LongDouble: return Importer.getToContext().LongDoubleTy;
case BuiltinType::NullPtr:
// FIXME: Make sure that the "to" context supports C++0x!
return Importer.getToContext().NullPtrTy;
case BuiltinType::Overload: return Importer.getToContext().OverloadTy;
case BuiltinType::Dependent: return Importer.getToContext().DependentTy;
case BuiltinType::ObjCId:
// FIXME: Make sure that the "to" context supports Objective-C!
return Importer.getToContext().ObjCBuiltinIdTy;
case BuiltinType::ObjCClass:
return Importer.getToContext().ObjCBuiltinClassTy;
case BuiltinType::ObjCSel:
return Importer.getToContext().ObjCBuiltinSelTy;
}
return QualType();
}
QualType ASTNodeImporter::VisitComplexType(const ComplexType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
return Importer.getToContext().getComplexType(ToElementType);
}
QualType ASTNodeImporter::VisitPointerType(const PointerType *T) {
QualType ToPointeeType = Importer.Import(T->getPointeeType());
if (ToPointeeType.isNull())
return QualType();
return Importer.getToContext().getPointerType(ToPointeeType);
}
QualType ASTNodeImporter::VisitBlockPointerType(const BlockPointerType *T) {
// FIXME: Check for blocks support in "to" context.
QualType ToPointeeType = Importer.Import(T->getPointeeType());
if (ToPointeeType.isNull())
return QualType();
return Importer.getToContext().getBlockPointerType(ToPointeeType);
}
QualType
ASTNodeImporter::VisitLValueReferenceType(const LValueReferenceType *T) {
// FIXME: Check for C++ support in "to" context.
QualType ToPointeeType = Importer.Import(T->getPointeeTypeAsWritten());
if (ToPointeeType.isNull())
return QualType();
return Importer.getToContext().getLValueReferenceType(ToPointeeType);
}
QualType
ASTNodeImporter::VisitRValueReferenceType(const RValueReferenceType *T) {
// FIXME: Check for C++0x support in "to" context.
QualType ToPointeeType = Importer.Import(T->getPointeeTypeAsWritten());
if (ToPointeeType.isNull())
return QualType();
return Importer.getToContext().getRValueReferenceType(ToPointeeType);
}
QualType ASTNodeImporter::VisitMemberPointerType(const MemberPointerType *T) {
// FIXME: Check for C++ support in "to" context.
QualType ToPointeeType = Importer.Import(T->getPointeeType());
if (ToPointeeType.isNull())
return QualType();
QualType ClassType = Importer.Import(QualType(T->getClass(), 0));
return Importer.getToContext().getMemberPointerType(ToPointeeType,
ClassType.getTypePtr());
}
QualType ASTNodeImporter::VisitConstantArrayType(const ConstantArrayType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
return Importer.getToContext().getConstantArrayType(ToElementType,
T->getSize(),
T->getSizeModifier(),
T->getIndexTypeCVRQualifiers());
}
QualType
ASTNodeImporter::VisitIncompleteArrayType(const IncompleteArrayType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
return Importer.getToContext().getIncompleteArrayType(ToElementType,
T->getSizeModifier(),
T->getIndexTypeCVRQualifiers());
}
QualType ASTNodeImporter::VisitVariableArrayType(const VariableArrayType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
Expr *Size = Importer.Import(T->getSizeExpr());
if (!Size)
return QualType();
SourceRange Brackets = Importer.Import(T->getBracketsRange());
return Importer.getToContext().getVariableArrayType(ToElementType, Size,
T->getSizeModifier(),
T->getIndexTypeCVRQualifiers(),
Brackets);
}
QualType ASTNodeImporter::VisitVectorType(const VectorType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
return Importer.getToContext().getVectorType(ToElementType,
T->getNumElements(),
T->getVectorKind());
}
QualType ASTNodeImporter::VisitExtVectorType(const ExtVectorType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
return QualType();
return Importer.getToContext().getExtVectorType(ToElementType,
T->getNumElements());
}
QualType
ASTNodeImporter::VisitFunctionNoProtoType(const FunctionNoProtoType *T) {
// FIXME: What happens if we're importing a function without a prototype
// into C++? Should we make it variadic?
QualType ToResultType = Importer.Import(T->getResultType());
if (ToResultType.isNull())
return QualType();
return Importer.getToContext().getFunctionNoProtoType(ToResultType,
T->getExtInfo());
}
QualType ASTNodeImporter::VisitFunctionProtoType(const FunctionProtoType *T) {
QualType ToResultType = Importer.Import(T->getResultType());
if (ToResultType.isNull())
return QualType();
// Import argument types
llvm::SmallVector<QualType, 4> ArgTypes;
for (FunctionProtoType::arg_type_iterator A = T->arg_type_begin(),
AEnd = T->arg_type_end();
A != AEnd; ++A) {
QualType ArgType = Importer.Import(*A);
if (ArgType.isNull())
return QualType();
ArgTypes.push_back(ArgType);
}
// Import exception types
llvm::SmallVector<QualType, 4> ExceptionTypes;
for (FunctionProtoType::exception_iterator E = T->exception_begin(),
EEnd = T->exception_end();
E != EEnd; ++E) {
QualType ExceptionType = Importer.Import(*E);
if (ExceptionType.isNull())
return QualType();
ExceptionTypes.push_back(ExceptionType);
}
FunctionProtoType::ExtProtoInfo EPI = T->getExtProtoInfo();
EPI.Exceptions = ExceptionTypes.data();
return Importer.getToContext().getFunctionType(ToResultType, ArgTypes.data(),
ArgTypes.size(), EPI);
}
QualType ASTNodeImporter::VisitTypedefType(const TypedefType *T) {
TypedefDecl *ToDecl
= dyn_cast_or_null<TypedefDecl>(Importer.Import(T->getDecl()));
if (!ToDecl)
return QualType();
return Importer.getToContext().getTypeDeclType(ToDecl);
}
QualType ASTNodeImporter::VisitTypeOfExprType(const TypeOfExprType *T) {
Expr *ToExpr = Importer.Import(T->getUnderlyingExpr());
if (!ToExpr)
return QualType();
return Importer.getToContext().getTypeOfExprType(ToExpr);
}
QualType ASTNodeImporter::VisitTypeOfType(const TypeOfType *T) {
QualType ToUnderlyingType = Importer.Import(T->getUnderlyingType());
if (ToUnderlyingType.isNull())
return QualType();
return Importer.getToContext().getTypeOfType(ToUnderlyingType);
}
QualType ASTNodeImporter::VisitDecltypeType(const DecltypeType *T) {
// FIXME: Make sure that the "to" context supports C++0x!
Expr *ToExpr = Importer.Import(T->getUnderlyingExpr());
if (!ToExpr)
return QualType();
return Importer.getToContext().getDecltypeType(ToExpr);
}
QualType ASTNodeImporter::VisitAutoType(const AutoType *T) {
// FIXME: Make sure that the "to" context supports C++0x!
QualType FromDeduced = T->getDeducedType();
QualType ToDeduced;
if (!FromDeduced.isNull()) {
ToDeduced = Importer.Import(FromDeduced);
if (ToDeduced.isNull())
return QualType();
}
return Importer.getToContext().getAutoType(ToDeduced);
}
QualType ASTNodeImporter::VisitRecordType(const RecordType *T) {
RecordDecl *ToDecl
= dyn_cast_or_null<RecordDecl>(Importer.Import(T->getDecl()));
if (!ToDecl)
return QualType();
return Importer.getToContext().getTagDeclType(ToDecl);
}
QualType ASTNodeImporter::VisitEnumType(const EnumType *T) {
EnumDecl *ToDecl
= dyn_cast_or_null<EnumDecl>(Importer.Import(T->getDecl()));
if (!ToDecl)
return QualType();
return Importer.getToContext().getTagDeclType(ToDecl);
}
QualType ASTNodeImporter::VisitTemplateSpecializationType(
const TemplateSpecializationType *T) {
TemplateName ToTemplate = Importer.Import(T->getTemplateName());
if (ToTemplate.isNull())
return QualType();
llvm::SmallVector<TemplateArgument, 2> ToTemplateArgs;
if (ImportTemplateArguments(T->getArgs(), T->getNumArgs(), ToTemplateArgs))
return QualType();
QualType ToCanonType;
if (!QualType(T, 0).isCanonical()) {
QualType FromCanonType
= Importer.getFromContext().getCanonicalType(QualType(T, 0));
ToCanonType =Importer.Import(FromCanonType);
if (ToCanonType.isNull())
return QualType();
}
return Importer.getToContext().getTemplateSpecializationType(ToTemplate,
ToTemplateArgs.data(),
ToTemplateArgs.size(),
ToCanonType);
}
QualType ASTNodeImporter::VisitElaboratedType(const ElaboratedType *T) {
NestedNameSpecifier *ToQualifier = 0;
// Note: the qualifier in an ElaboratedType is optional.
if (T->getQualifier()) {
ToQualifier = Importer.Import(T->getQualifier());
if (!ToQualifier)
return QualType();
}
QualType ToNamedType = Importer.Import(T->getNamedType());
if (ToNamedType.isNull())
return QualType();
return Importer.getToContext().getElaboratedType(T->getKeyword(),
ToQualifier, ToNamedType);
}
QualType ASTNodeImporter::VisitObjCInterfaceType(const ObjCInterfaceType *T) {
ObjCInterfaceDecl *Class
= dyn_cast_or_null<ObjCInterfaceDecl>(Importer.Import(T->getDecl()));
if (!Class)
return QualType();
return Importer.getToContext().getObjCInterfaceType(Class);
}
QualType ASTNodeImporter::VisitObjCObjectType(const ObjCObjectType *T) {
QualType ToBaseType = Importer.Import(T->getBaseType());
if (ToBaseType.isNull())
return QualType();
llvm::SmallVector<ObjCProtocolDecl *, 4> Protocols;
for (ObjCObjectType::qual_iterator P = T->qual_begin(),
PEnd = T->qual_end();
P != PEnd; ++P) {
ObjCProtocolDecl *Protocol
= dyn_cast_or_null<ObjCProtocolDecl>(Importer.Import(*P));
if (!Protocol)
return QualType();
Protocols.push_back(Protocol);
}
return Importer.getToContext().getObjCObjectType(ToBaseType,
Protocols.data(),
Protocols.size());
}
QualType
ASTNodeImporter::VisitObjCObjectPointerType(const ObjCObjectPointerType *T) {
QualType ToPointeeType = Importer.Import(T->getPointeeType());
if (ToPointeeType.isNull())
return QualType();
return Importer.getToContext().getObjCObjectPointerType(ToPointeeType);
}
//----------------------------------------------------------------------------
// Import Declarations
//----------------------------------------------------------------------------
bool ASTNodeImporter::ImportDeclParts(NamedDecl *D, DeclContext *&DC,
DeclContext *&LexicalDC,
DeclarationName &Name,
SourceLocation &Loc) {
// Import the context of this declaration.
DC = Importer.ImportContext(D->getDeclContext());
if (!DC)
return true;
LexicalDC = DC;
if (D->getDeclContext() != D->getLexicalDeclContext()) {
LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return true;
}
// Import the name of this declaration.
Name = Importer.Import(D->getDeclName());
if (D->getDeclName() && !Name)
return true;
// Import the location of this declaration.
Loc = Importer.Import(D->getLocation());
return false;
}
void
ASTNodeImporter::ImportDeclarationNameLoc(const DeclarationNameInfo &From,
DeclarationNameInfo& To) {
// NOTE: To.Name and To.Loc are already imported.
// We only have to import To.LocInfo.
switch (To.getName().getNameKind()) {
case DeclarationName::Identifier:
case DeclarationName::ObjCZeroArgSelector:
case DeclarationName::ObjCOneArgSelector:
case DeclarationName::ObjCMultiArgSelector:
case DeclarationName::CXXUsingDirective:
return;
case DeclarationName::CXXOperatorName: {
SourceRange Range = From.getCXXOperatorNameRange();
To.setCXXOperatorNameRange(Importer.Import(Range));
return;
}
case DeclarationName::CXXLiteralOperatorName: {
SourceLocation Loc = From.getCXXLiteralOperatorNameLoc();
To.setCXXLiteralOperatorNameLoc(Importer.Import(Loc));
return;
}
case DeclarationName::CXXConstructorName:
case DeclarationName::CXXDestructorName:
case DeclarationName::CXXConversionFunctionName: {
TypeSourceInfo *FromTInfo = From.getNamedTypeInfo();
To.setNamedTypeInfo(Importer.Import(FromTInfo));
return;
}
assert(0 && "Unknown name kind.");
}
}
void ASTNodeImporter::ImportDeclContext(DeclContext *FromDC, bool ForceImport) {
if (Importer.isMinimalImport() && !ForceImport) {
if (DeclContext *ToDC = Importer.ImportContext(FromDC)) {
ToDC->setHasExternalLexicalStorage();
ToDC->setHasExternalVisibleStorage();
}
return;
}
for (DeclContext::decl_iterator From = FromDC->decls_begin(),
FromEnd = FromDC->decls_end();
From != FromEnd;
++From)
Importer.Import(*From);
}
bool ASTNodeImporter::ImportDefinition(RecordDecl *From, RecordDecl *To) {
if (To->getDefinition())
return false;
To->startDefinition();
// Add base classes.
if (CXXRecordDecl *ToCXX = dyn_cast<CXXRecordDecl>(To)) {
CXXRecordDecl *FromCXX = cast<CXXRecordDecl>(From);
llvm::SmallVector<CXXBaseSpecifier *, 4> Bases;
for (CXXRecordDecl::base_class_iterator
Base1 = FromCXX->bases_begin(),
FromBaseEnd = FromCXX->bases_end();
Base1 != FromBaseEnd;
++Base1) {
QualType T = Importer.Import(Base1->getType());
if (T.isNull())
return true;
SourceLocation EllipsisLoc;
if (Base1->isPackExpansion())
EllipsisLoc = Importer.Import(Base1->getEllipsisLoc());
Bases.push_back(
new (Importer.getToContext())
CXXBaseSpecifier(Importer.Import(Base1->getSourceRange()),
Base1->isVirtual(),
Base1->isBaseOfClass(),
Base1->getAccessSpecifierAsWritten(),
Importer.Import(Base1->getTypeSourceInfo()),
EllipsisLoc));
}
if (!Bases.empty())
ToCXX->setBases(Bases.data(), Bases.size());
}
ImportDeclContext(From);
To->completeDefinition();
return false;
}
TemplateParameterList *ASTNodeImporter::ImportTemplateParameterList(
TemplateParameterList *Params) {
llvm::SmallVector<NamedDecl *, 4> ToParams;
ToParams.reserve(Params->size());
for (TemplateParameterList::iterator P = Params->begin(),
PEnd = Params->end();
P != PEnd; ++P) {
Decl *To = Importer.Import(*P);
if (!To)
return 0;
ToParams.push_back(cast<NamedDecl>(To));
}
return TemplateParameterList::Create(Importer.getToContext(),
Importer.Import(Params->getTemplateLoc()),
Importer.Import(Params->getLAngleLoc()),
ToParams.data(), ToParams.size(),
Importer.Import(Params->getRAngleLoc()));
}
TemplateArgument
ASTNodeImporter::ImportTemplateArgument(const TemplateArgument &From) {
switch (From.getKind()) {
case TemplateArgument::Null:
return TemplateArgument();
case TemplateArgument::Type: {
QualType ToType = Importer.Import(From.getAsType());
if (ToType.isNull())
return TemplateArgument();
return TemplateArgument(ToType);
}
case TemplateArgument::Integral: {
QualType ToType = Importer.Import(From.getIntegralType());
if (ToType.isNull())
return TemplateArgument();
return TemplateArgument(*From.getAsIntegral(), ToType);
}
case TemplateArgument::Declaration:
if (Decl *To = Importer.Import(From.getAsDecl()))
return TemplateArgument(To);
return TemplateArgument();
case TemplateArgument::Template: {
TemplateName ToTemplate = Importer.Import(From.getAsTemplate());
if (ToTemplate.isNull())
return TemplateArgument();
return TemplateArgument(ToTemplate);
}
case TemplateArgument::TemplateExpansion: {
TemplateName ToTemplate
= Importer.Import(From.getAsTemplateOrTemplatePattern());
if (ToTemplate.isNull())
return TemplateArgument();
return TemplateArgument(ToTemplate, From.getNumTemplateExpansions());
}
case TemplateArgument::Expression:
if (Expr *ToExpr = Importer.Import(From.getAsExpr()))
return TemplateArgument(ToExpr);
return TemplateArgument();
case TemplateArgument::Pack: {
llvm::SmallVector<TemplateArgument, 2> ToPack;
ToPack.reserve(From.pack_size());
if (ImportTemplateArguments(From.pack_begin(), From.pack_size(), ToPack))
return TemplateArgument();
TemplateArgument *ToArgs
= new (Importer.getToContext()) TemplateArgument[ToPack.size()];
std::copy(ToPack.begin(), ToPack.end(), ToArgs);
return TemplateArgument(ToArgs, ToPack.size());
}
}
llvm_unreachable("Invalid template argument kind");
return TemplateArgument();
}
bool ASTNodeImporter::ImportTemplateArguments(const TemplateArgument *FromArgs,
unsigned NumFromArgs,
llvm::SmallVectorImpl<TemplateArgument> &ToArgs) {
for (unsigned I = 0; I != NumFromArgs; ++I) {
TemplateArgument To = ImportTemplateArgument(FromArgs[I]);
if (To.isNull() && !FromArgs[I].isNull())
return true;
ToArgs.push_back(To);
}
return false;
}
bool ASTNodeImporter::IsStructuralMatch(RecordDecl *FromRecord,
RecordDecl *ToRecord) {
StructuralEquivalenceContext Ctx(Importer.getFromContext(),
Importer.getToContext(),
Importer.getNonEquivalentDecls());
return Ctx.IsStructurallyEquivalent(FromRecord, ToRecord);
}
bool ASTNodeImporter::IsStructuralMatch(EnumDecl *FromEnum, EnumDecl *ToEnum) {
StructuralEquivalenceContext Ctx(Importer.getFromContext(),
Importer.getToContext(),
Importer.getNonEquivalentDecls());
return Ctx.IsStructurallyEquivalent(FromEnum, ToEnum);
}
bool ASTNodeImporter::IsStructuralMatch(ClassTemplateDecl *From,
ClassTemplateDecl *To) {
StructuralEquivalenceContext Ctx(Importer.getFromContext(),
Importer.getToContext(),
Importer.getNonEquivalentDecls());
return Ctx.IsStructurallyEquivalent(From, To);
}
Decl *ASTNodeImporter::VisitDecl(Decl *D) {
Importer.FromDiag(D->getLocation(), diag::err_unsupported_ast_node)
<< D->getDeclKindName();
return 0;
}
Decl *ASTNodeImporter::VisitNamespaceDecl(NamespaceDecl *D) {
// Import the major distinguishing characteristics of this namespace.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
NamespaceDecl *MergeWithNamespace = 0;
if (!Name) {
// This is an anonymous namespace. Adopt an existing anonymous
// namespace if we can.
// FIXME: Not testable.
if (TranslationUnitDecl *TU = dyn_cast<TranslationUnitDecl>(DC))
MergeWithNamespace = TU->getAnonymousNamespace();
else
MergeWithNamespace = cast<NamespaceDecl>(DC)->getAnonymousNamespace();
} else {
llvm::SmallVector<NamedDecl *, 4> ConflictingDecls;
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (!(*Lookup.first)->isInIdentifierNamespace(Decl::IDNS_Namespace))
continue;
if (NamespaceDecl *FoundNS = dyn_cast<NamespaceDecl>(*Lookup.first)) {
MergeWithNamespace = FoundNS;
ConflictingDecls.clear();
break;
}
ConflictingDecls.push_back(*Lookup.first);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, Decl::IDNS_Namespace,
ConflictingDecls.data(),
ConflictingDecls.size());
}
}
// Create the "to" namespace, if needed.
NamespaceDecl *ToNamespace = MergeWithNamespace;
if (!ToNamespace) {
ToNamespace = NamespaceDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getLocStart()),
Loc, Name.getAsIdentifierInfo());
ToNamespace->setLexicalDeclContext(LexicalDC);
LexicalDC->addDecl(ToNamespace);
// If this is an anonymous namespace, register it as the anonymous
// namespace within its context.
if (!Name) {
if (TranslationUnitDecl *TU = dyn_cast<TranslationUnitDecl>(DC))
TU->setAnonymousNamespace(ToNamespace);
else
cast<NamespaceDecl>(DC)->setAnonymousNamespace(ToNamespace);
}
}
Importer.Imported(D, ToNamespace);
ImportDeclContext(D);
return ToNamespace;
}
Decl *ASTNodeImporter::VisitTypedefDecl(TypedefDecl *D) {
// Import the major distinguishing characteristics of this typedef.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
// If this typedef is not in block scope, determine whether we've
// seen a typedef with the same name (that we can merge with) or any
// other entity by that name (which name lookup could conflict with).
if (!DC->isFunctionOrMethod()) {
llvm::SmallVector<NamedDecl *, 4> ConflictingDecls;
unsigned IDNS = Decl::IDNS_Ordinary;
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (!(*Lookup.first)->isInIdentifierNamespace(IDNS))
continue;
if (TypedefDecl *FoundTypedef = dyn_cast<TypedefDecl>(*Lookup.first)) {
if (Importer.IsStructurallyEquivalent(D->getUnderlyingType(),
FoundTypedef->getUnderlyingType()))
return Importer.Imported(D, FoundTypedef);
}
ConflictingDecls.push_back(*Lookup.first);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
if (!Name)
return 0;
}
}
// Import the underlying type of this typedef;
QualType T = Importer.Import(D->getUnderlyingType());
if (T.isNull())
return 0;
// Create the new typedef node.
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
SourceLocation StartL = Importer.Import(D->getLocStart());
TypedefDecl *ToTypedef = TypedefDecl::Create(Importer.getToContext(), DC,
StartL, Loc,
Name.getAsIdentifierInfo(),
TInfo);
ToTypedef->setAccess(D->getAccess());
ToTypedef->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToTypedef);
LexicalDC->addDecl(ToTypedef);
return ToTypedef;
}
Decl *ASTNodeImporter::VisitEnumDecl(EnumDecl *D) {
// Import the major distinguishing characteristics of this enum.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
// Figure out what enum name we're looking for.
unsigned IDNS = Decl::IDNS_Tag;
DeclarationName SearchName = Name;
if (!SearchName && D->getTypedefForAnonDecl()) {
SearchName = Importer.Import(D->getTypedefForAnonDecl()->getDeclName());
IDNS = Decl::IDNS_Ordinary;
} else if (Importer.getToContext().getLangOptions().CPlusPlus)
IDNS |= Decl::IDNS_Ordinary;
// We may already have an enum of the same name; try to find and match it.
if (!DC->isFunctionOrMethod() && SearchName) {
llvm::SmallVector<NamedDecl *, 4> ConflictingDecls;
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (!(*Lookup.first)->isInIdentifierNamespace(IDNS))
continue;
Decl *Found = *Lookup.first;
if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Found)) {
if (const TagType *Tag = Typedef->getUnderlyingType()->getAs<TagType>())
Found = Tag->getDecl();
}
if (EnumDecl *FoundEnum = dyn_cast<EnumDecl>(Found)) {
if (IsStructuralMatch(D, FoundEnum))
return Importer.Imported(D, FoundEnum);
}
ConflictingDecls.push_back(*Lookup.first);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
}
}
// Create the enum declaration.
EnumDecl *D2 = EnumDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getLocStart()),
Loc, Name.getAsIdentifierInfo(), 0,
D->isScoped(), D->isScopedUsingClassTag(),
D->isFixed());
// Import the qualifier, if any.
D2->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
D2->setAccess(D->getAccess());
D2->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, D2);
LexicalDC->addDecl(D2);
// Import the integer type.
QualType ToIntegerType = Importer.Import(D->getIntegerType());
if (ToIntegerType.isNull())
return 0;
D2->setIntegerType(ToIntegerType);
// Import the definition
if (D->isDefinition()) {
QualType T = Importer.Import(Importer.getFromContext().getTypeDeclType(D));
if (T.isNull())
return 0;
QualType ToPromotionType = Importer.Import(D->getPromotionType());
if (ToPromotionType.isNull())
return 0;
D2->startDefinition();
ImportDeclContext(D);
// FIXME: we might need to merge the number of positive or negative bits
// if the enumerator lists don't match.
D2->completeDefinition(T, ToPromotionType,
D->getNumPositiveBits(),
D->getNumNegativeBits());
}
return D2;
}
Decl *ASTNodeImporter::VisitRecordDecl(RecordDecl *D) {
// If this record has a definition in the translation unit we're coming from,
// but this particular declaration is not that definition, import the
// definition and map to that.
TagDecl *Definition = D->getDefinition();
if (Definition && Definition != D) {
Decl *ImportedDef = Importer.Import(Definition);
if (!ImportedDef)
return 0;
return Importer.Imported(D, ImportedDef);
}
// Import the major distinguishing characteristics of this record.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
// Figure out what structure name we're looking for.
unsigned IDNS = Decl::IDNS_Tag;
DeclarationName SearchName = Name;
if (!SearchName && D->getTypedefForAnonDecl()) {
SearchName = Importer.Import(D->getTypedefForAnonDecl()->getDeclName());
IDNS = Decl::IDNS_Ordinary;
} else if (Importer.getToContext().getLangOptions().CPlusPlus)
IDNS |= Decl::IDNS_Ordinary;
// We may already have a record of the same name; try to find and match it.
RecordDecl *AdoptDecl = 0;
if (!DC->isFunctionOrMethod() && SearchName) {
llvm::SmallVector<NamedDecl *, 4> ConflictingDecls;
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (!(*Lookup.first)->isInIdentifierNamespace(IDNS))
continue;
Decl *Found = *Lookup.first;
if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Found)) {
if (const TagType *Tag = Typedef->getUnderlyingType()->getAs<TagType>())
Found = Tag->getDecl();
}
if (RecordDecl *FoundRecord = dyn_cast<RecordDecl>(Found)) {
if (RecordDecl *FoundDef = FoundRecord->getDefinition()) {
if (!D->isDefinition() || IsStructuralMatch(D, FoundDef)) {
// The record types structurally match, or the "from" translation
// unit only had a forward declaration anyway; call it the same
// function.
// FIXME: For C++, we should also merge methods here.
return Importer.Imported(D, FoundDef);
}
} else {
// We have a forward declaration of this type, so adopt that forward
// declaration rather than building a new one.
AdoptDecl = FoundRecord;
continue;
}
}
ConflictingDecls.push_back(*Lookup.first);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
}
}
// Create the record declaration.
RecordDecl *D2 = AdoptDecl;
SourceLocation StartLoc = Importer.Import(D->getLocStart());
if (!D2) {
if (isa<CXXRecordDecl>(D)) {
CXXRecordDecl *D2CXX = CXXRecordDecl::Create(Importer.getToContext(),
D->getTagKind(),
DC, StartLoc, Loc,
Name.getAsIdentifierInfo());
D2 = D2CXX;
D2->setAccess(D->getAccess());
} else {
D2 = RecordDecl::Create(Importer.getToContext(), D->getTagKind(),
DC, StartLoc, Loc, Name.getAsIdentifierInfo());
}
D2->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
D2->setLexicalDeclContext(LexicalDC);
LexicalDC->addDecl(D2);
}
Importer.Imported(D, D2);
if (D->isDefinition() && ImportDefinition(D, D2))
return 0;
return D2;
}
Decl *ASTNodeImporter::VisitEnumConstantDecl(EnumConstantDecl *D) {
// Import the major distinguishing characteristics of this enumerator.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
QualType T = Importer.Import(D->getType());
if (T.isNull())
return 0;
// Determine whether there are any other declarations with the same name and
// in the same context.
if (!LexicalDC->isFunctionOrMethod()) {
llvm::SmallVector<NamedDecl *, 4> ConflictingDecls;
unsigned IDNS = Decl::IDNS_Ordinary;
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (!(*Lookup.first)->isInIdentifierNamespace(IDNS))
continue;
ConflictingDecls.push_back(*Lookup.first);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
if (!Name)
return 0;
}
}
Expr *Init = Importer.Import(D->getInitExpr());
if (D->getInitExpr() && !Init)
return 0;
EnumConstantDecl *ToEnumerator
= EnumConstantDecl::Create(Importer.getToContext(), cast<EnumDecl>(DC), Loc,
Name.getAsIdentifierInfo(), T,
Init, D->getInitVal());
ToEnumerator->setAccess(D->getAccess());
ToEnumerator->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToEnumerator);
LexicalDC->addDecl(ToEnumerator);
return ToEnumerator;
}
Decl *ASTNodeImporter::VisitFunctionDecl(FunctionDecl *D) {
// Import the major distinguishing characteristics of this function.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
// Try to find a function in our own ("to") context with the same name, same
// type, and in the same context as the function we're importing.
if (!LexicalDC->isFunctionOrMethod()) {
llvm::SmallVector<NamedDecl *, 4> ConflictingDecls;
unsigned IDNS = Decl::IDNS_Ordinary;
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (!(*Lookup.first)->isInIdentifierNamespace(IDNS))
continue;
if (FunctionDecl *FoundFunction = dyn_cast<FunctionDecl>(*Lookup.first)) {
if (isExternalLinkage(FoundFunction->getLinkage()) &&
isExternalLinkage(D->getLinkage())) {
if (Importer.IsStructurallyEquivalent(D->getType(),
FoundFunction->getType())) {
// FIXME: Actually try to merge the body and other attributes.
return Importer.Imported(D, FoundFunction);
}
// FIXME: Check for overloading more carefully, e.g., by boosting
// Sema::IsOverload out to the AST library.
// Function overloading is okay in C++.
if (Importer.getToContext().getLangOptions().CPlusPlus)
continue;
// Complain about inconsistent function types.
Importer.ToDiag(Loc, diag::err_odr_function_type_inconsistent)
<< Name << D->getType() << FoundFunction->getType();
Importer.ToDiag(FoundFunction->getLocation(),
diag::note_odr_value_here)
<< FoundFunction->getType();
}
}
ConflictingDecls.push_back(*Lookup.first);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
if (!Name)
return 0;
}
}
DeclarationNameInfo NameInfo(Name, Loc);
// Import additional name location/type info.
ImportDeclarationNameLoc(D->getNameInfo(), NameInfo);
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return 0;
// Import the function parameters.
llvm::SmallVector<ParmVarDecl *, 8> Parameters;
for (FunctionDecl::param_iterator P = D->param_begin(), PEnd = D->param_end();
P != PEnd; ++P) {
ParmVarDecl *ToP = cast_or_null<ParmVarDecl>(Importer.Import(*P));
if (!ToP)
return 0;
Parameters.push_back(ToP);
}
// Create the imported function.
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
FunctionDecl *ToFunction = 0;
if (CXXConstructorDecl *FromConstructor = dyn_cast<CXXConstructorDecl>(D)) {
ToFunction = CXXConstructorDecl::Create(Importer.getToContext(),
cast<CXXRecordDecl>(DC),
D->getInnerLocStart(),
NameInfo, T, TInfo,
FromConstructor->isExplicit(),
D->isInlineSpecified(),
D->isImplicit());
} else if (isa<CXXDestructorDecl>(D)) {
ToFunction = CXXDestructorDecl::Create(Importer.getToContext(),
cast<CXXRecordDecl>(DC),
D->getInnerLocStart(),
NameInfo, T, TInfo,
D->isInlineSpecified(),
D->isImplicit());
} else if (CXXConversionDecl *FromConversion
= dyn_cast<CXXConversionDecl>(D)) {
ToFunction = CXXConversionDecl::Create(Importer.getToContext(),
cast<CXXRecordDecl>(DC),
D->getInnerLocStart(),
NameInfo, T, TInfo,
D->isInlineSpecified(),
FromConversion->isExplicit(),
Importer.Import(D->getLocEnd()));
} else if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(D)) {
ToFunction = CXXMethodDecl::Create(Importer.getToContext(),
cast<CXXRecordDecl>(DC),
D->getInnerLocStart(),
NameInfo, T, TInfo,
Method->isStatic(),
Method->getStorageClassAsWritten(),
Method->isInlineSpecified(),
Importer.Import(D->getLocEnd()));
} else {
ToFunction = FunctionDecl::Create(Importer.getToContext(), DC,
D->getInnerLocStart(),
NameInfo, T, TInfo, D->getStorageClass(),
D->getStorageClassAsWritten(),
D->isInlineSpecified(),
D->hasWrittenPrototype());
}
// Import the qualifier, if any.
ToFunction->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
ToFunction->setAccess(D->getAccess());
ToFunction->setLexicalDeclContext(LexicalDC);
ToFunction->setVirtualAsWritten(D->isVirtualAsWritten());
ToFunction->setTrivial(D->isTrivial());
ToFunction->setPure(D->isPure());
Importer.Imported(D, ToFunction);
// Set the parameters.
for (unsigned I = 0, N = Parameters.size(); I != N; ++I) {
Parameters[I]->setOwningFunction(ToFunction);
ToFunction->addDecl(Parameters[I]);
}
ToFunction->setParams(Parameters.data(), Parameters.size());
// FIXME: Other bits to merge?
// Add this function to the lexical context.
LexicalDC->addDecl(ToFunction);
return ToFunction;
}
Decl *ASTNodeImporter::VisitCXXMethodDecl(CXXMethodDecl *D) {
return VisitFunctionDecl(D);
}
Decl *ASTNodeImporter::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
return VisitCXXMethodDecl(D);
}
Decl *ASTNodeImporter::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
return VisitCXXMethodDecl(D);
}
Decl *ASTNodeImporter::VisitCXXConversionDecl(CXXConversionDecl *D) {
return VisitCXXMethodDecl(D);
}
Decl *ASTNodeImporter::VisitFieldDecl(FieldDecl *D) {
// Import the major distinguishing characteristics of a variable.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return 0;
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
Expr *BitWidth = Importer.Import(D->getBitWidth());
if (!BitWidth && D->getBitWidth())
return 0;
FieldDecl *ToField = FieldDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getInnerLocStart()),
Loc, Name.getAsIdentifierInfo(),
T, TInfo, BitWidth, D->isMutable());
ToField->setAccess(D->getAccess());
ToField->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToField);
LexicalDC->addDecl(ToField);
return ToField;
}
Decl *ASTNodeImporter::VisitIndirectFieldDecl(IndirectFieldDecl *D) {
// Import the major distinguishing characteristics of a variable.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return 0;
NamedDecl **NamedChain =
new (Importer.getToContext())NamedDecl*[D->getChainingSize()];
unsigned i = 0;
for (IndirectFieldDecl::chain_iterator PI = D->chain_begin(),
PE = D->chain_end(); PI != PE; ++PI) {
Decl* D = Importer.Import(*PI);
if (!D)
return 0;
NamedChain[i++] = cast<NamedDecl>(D);
}
IndirectFieldDecl *ToIndirectField = IndirectFieldDecl::Create(
Importer.getToContext(), DC,
Loc, Name.getAsIdentifierInfo(), T,
NamedChain, D->getChainingSize());
ToIndirectField->setAccess(D->getAccess());
ToIndirectField->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToIndirectField);
LexicalDC->addDecl(ToIndirectField);
return ToIndirectField;
}
Decl *ASTNodeImporter::VisitObjCIvarDecl(ObjCIvarDecl *D) {
// Import the major distinguishing characteristics of an ivar.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
// Determine whether we've already imported this ivar
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (ObjCIvarDecl *FoundIvar = dyn_cast<ObjCIvarDecl>(*Lookup.first)) {
if (Importer.IsStructurallyEquivalent(D->getType(),
FoundIvar->getType())) {
Importer.Imported(D, FoundIvar);
return FoundIvar;
}
Importer.ToDiag(Loc, diag::err_odr_ivar_type_inconsistent)
<< Name << D->getType() << FoundIvar->getType();
Importer.ToDiag(FoundIvar->getLocation(), diag::note_odr_value_here)
<< FoundIvar->getType();
return 0;
}
}
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return 0;
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
Expr *BitWidth = Importer.Import(D->getBitWidth());
if (!BitWidth && D->getBitWidth())
return 0;
ObjCIvarDecl *ToIvar = ObjCIvarDecl::Create(Importer.getToContext(),
cast<ObjCContainerDecl>(DC),
Importer.Import(D->getInnerLocStart()),
Loc, Name.getAsIdentifierInfo(),
T, TInfo, D->getAccessControl(),
BitWidth, D->getSynthesize());
ToIvar->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToIvar);
LexicalDC->addDecl(ToIvar);
return ToIvar;
}
Decl *ASTNodeImporter::VisitVarDecl(VarDecl *D) {
// Import the major distinguishing characteristics of a variable.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
// Try to find a variable in our own ("to") context with the same name and
// in the same context as the variable we're importing.
if (D->isFileVarDecl()) {
VarDecl *MergeWithVar = 0;
llvm::SmallVector<NamedDecl *, 4> ConflictingDecls;
unsigned IDNS = Decl::IDNS_Ordinary;
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (!(*Lookup.first)->isInIdentifierNamespace(IDNS))
continue;
if (VarDecl *FoundVar = dyn_cast<VarDecl>(*Lookup.first)) {
// We have found a variable that we may need to merge with. Check it.
if (isExternalLinkage(FoundVar->getLinkage()) &&
isExternalLinkage(D->getLinkage())) {
if (Importer.IsStructurallyEquivalent(D->getType(),
FoundVar->getType())) {
MergeWithVar = FoundVar;
break;
}
const ArrayType *FoundArray
= Importer.getToContext().getAsArrayType(FoundVar->getType());
const ArrayType *TArray
= Importer.getToContext().getAsArrayType(D->getType());
if (FoundArray && TArray) {
if (isa<IncompleteArrayType>(FoundArray) &&
isa<ConstantArrayType>(TArray)) {
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return 0;
FoundVar->setType(T);
MergeWithVar = FoundVar;
break;
} else if (isa<IncompleteArrayType>(TArray) &&
isa<ConstantArrayType>(FoundArray)) {
MergeWithVar = FoundVar;
break;
}
}
Importer.ToDiag(Loc, diag::err_odr_variable_type_inconsistent)
<< Name << D->getType() << FoundVar->getType();
Importer.ToDiag(FoundVar->getLocation(), diag::note_odr_value_here)
<< FoundVar->getType();
}
}
ConflictingDecls.push_back(*Lookup.first);
}
if (MergeWithVar) {
// An equivalent variable with external linkage has been found. Link
// the two declarations, then merge them.
Importer.Imported(D, MergeWithVar);
if (VarDecl *DDef = D->getDefinition()) {
if (VarDecl *ExistingDef = MergeWithVar->getDefinition()) {
Importer.ToDiag(ExistingDef->getLocation(),
diag::err_odr_variable_multiple_def)
<< Name;
Importer.FromDiag(DDef->getLocation(), diag::note_odr_defined_here);
} else {
Expr *Init = Importer.Import(DDef->getInit());
MergeWithVar->setInit(Init);
}
}
return MergeWithVar;
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, IDNS,
ConflictingDecls.data(),
ConflictingDecls.size());
if (!Name)
return 0;
}
}
// Import the type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return 0;
// Create the imported variable.
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
VarDecl *ToVar = VarDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getInnerLocStart()),
Loc, Name.getAsIdentifierInfo(),
T, TInfo,
D->getStorageClass(),
D->getStorageClassAsWritten());
ToVar->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
ToVar->setAccess(D->getAccess());
ToVar->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToVar);
LexicalDC->addDecl(ToVar);
// Merge the initializer.
// FIXME: Can we really import any initializer? Alternatively, we could force
// ourselves to import every declaration of a variable and then only use
// getInit() here.
ToVar->setInit(Importer.Import(const_cast<Expr *>(D->getAnyInitializer())));
// FIXME: Other bits to merge?
return ToVar;
}
Decl *ASTNodeImporter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
// Parameters are created in the translation unit's context, then moved
// into the function declaration's context afterward.
DeclContext *DC = Importer.getToContext().getTranslationUnitDecl();
// Import the name of this declaration.
DeclarationName Name = Importer.Import(D->getDeclName());
if (D->getDeclName() && !Name)
return 0;
// Import the location of this declaration.
SourceLocation Loc = Importer.Import(D->getLocation());
// Import the parameter's type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return 0;
// Create the imported parameter.
ImplicitParamDecl *ToParm
= ImplicitParamDecl::Create(Importer.getToContext(), DC,
Loc, Name.getAsIdentifierInfo(),
T);
return Importer.Imported(D, ToParm);
}
Decl *ASTNodeImporter::VisitParmVarDecl(ParmVarDecl *D) {
// Parameters are created in the translation unit's context, then moved
// into the function declaration's context afterward.
DeclContext *DC = Importer.getToContext().getTranslationUnitDecl();
// Import the name of this declaration.
DeclarationName Name = Importer.Import(D->getDeclName());
if (D->getDeclName() && !Name)
return 0;
// Import the location of this declaration.
SourceLocation Loc = Importer.Import(D->getLocation());
// Import the parameter's type.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return 0;
// Create the imported parameter.
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
ParmVarDecl *ToParm = ParmVarDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getInnerLocStart()),
Loc, Name.getAsIdentifierInfo(),
T, TInfo, D->getStorageClass(),
D->getStorageClassAsWritten(),
/*FIXME: Default argument*/ 0);
ToParm->setHasInheritedDefaultArg(D->hasInheritedDefaultArg());
return Importer.Imported(D, ToParm);
}
Decl *ASTNodeImporter::VisitObjCMethodDecl(ObjCMethodDecl *D) {
// Import the major distinguishing characteristics of a method.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (ObjCMethodDecl *FoundMethod = dyn_cast<ObjCMethodDecl>(*Lookup.first)) {
if (FoundMethod->isInstanceMethod() != D->isInstanceMethod())
continue;
// Check return types.
if (!Importer.IsStructurallyEquivalent(D->getResultType(),
FoundMethod->getResultType())) {
Importer.ToDiag(Loc, diag::err_odr_objc_method_result_type_inconsistent)
<< D->isInstanceMethod() << Name
<< D->getResultType() << FoundMethod->getResultType();
Importer.ToDiag(FoundMethod->getLocation(),
diag::note_odr_objc_method_here)
<< D->isInstanceMethod() << Name;
return 0;
}
// Check the number of parameters.
if (D->param_size() != FoundMethod->param_size()) {
Importer.ToDiag(Loc, diag::err_odr_objc_method_num_params_inconsistent)
<< D->isInstanceMethod() << Name
<< D->param_size() << FoundMethod->param_size();
Importer.ToDiag(FoundMethod->getLocation(),
diag::note_odr_objc_method_here)
<< D->isInstanceMethod() << Name;
return 0;
}
// Check parameter types.
for (ObjCMethodDecl::param_iterator P = D->param_begin(),
PEnd = D->param_end(), FoundP = FoundMethod->param_begin();
P != PEnd; ++P, ++FoundP) {
if (!Importer.IsStructurallyEquivalent((*P)->getType(),
(*FoundP)->getType())) {
Importer.FromDiag((*P)->getLocation(),
diag::err_odr_objc_method_param_type_inconsistent)
<< D->isInstanceMethod() << Name
<< (*P)->getType() << (*FoundP)->getType();
Importer.ToDiag((*FoundP)->getLocation(), diag::note_odr_value_here)
<< (*FoundP)->getType();
return 0;
}
}
// Check variadic/non-variadic.
// Check the number of parameters.
if (D->isVariadic() != FoundMethod->isVariadic()) {
Importer.ToDiag(Loc, diag::err_odr_objc_method_variadic_inconsistent)
<< D->isInstanceMethod() << Name;
Importer.ToDiag(FoundMethod->getLocation(),
diag::note_odr_objc_method_here)
<< D->isInstanceMethod() << Name;
return 0;
}
// FIXME: Any other bits we need to merge?
return Importer.Imported(D, FoundMethod);
}
}
// Import the result type.
QualType ResultTy = Importer.Import(D->getResultType());
if (ResultTy.isNull())
return 0;
TypeSourceInfo *ResultTInfo = Importer.Import(D->getResultTypeSourceInfo());
ObjCMethodDecl *ToMethod
= ObjCMethodDecl::Create(Importer.getToContext(),
Loc,
Importer.Import(D->getLocEnd()),
Name.getObjCSelector(),
ResultTy, ResultTInfo, DC,
D->isInstanceMethod(),
D->isVariadic(),
D->isSynthesized(),
D->isDefined(),
D->getImplementationControl());
// FIXME: When we decide to merge method definitions, we'll need to
// deal with implicit parameters.
// Import the parameters
llvm::SmallVector<ParmVarDecl *, 5> ToParams;
for (ObjCMethodDecl::param_iterator FromP = D->param_begin(),
FromPEnd = D->param_end();
FromP != FromPEnd;
++FromP) {
ParmVarDecl *ToP = cast_or_null<ParmVarDecl>(Importer.Import(*FromP));
if (!ToP)
return 0;
ToParams.push_back(ToP);
}
// Set the parameters.
for (unsigned I = 0, N = ToParams.size(); I != N; ++I) {
ToParams[I]->setOwningFunction(ToMethod);
ToMethod->addDecl(ToParams[I]);
}
ToMethod->setMethodParams(Importer.getToContext(),
ToParams.data(), ToParams.size(),
ToParams.size());
ToMethod->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToMethod);
LexicalDC->addDecl(ToMethod);
return ToMethod;
}
Decl *ASTNodeImporter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
// Import the major distinguishing characteristics of a category.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
ObjCInterfaceDecl *ToInterface
= cast_or_null<ObjCInterfaceDecl>(Importer.Import(D->getClassInterface()));
if (!ToInterface)
return 0;
// Determine if we've already encountered this category.
ObjCCategoryDecl *MergeWithCategory
= ToInterface->FindCategoryDeclaration(Name.getAsIdentifierInfo());
ObjCCategoryDecl *ToCategory = MergeWithCategory;
if (!ToCategory) {
ToCategory = ObjCCategoryDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getAtLoc()),
Loc,
Importer.Import(D->getCategoryNameLoc()),
Name.getAsIdentifierInfo());
ToCategory->setLexicalDeclContext(LexicalDC);
LexicalDC->addDecl(ToCategory);
Importer.Imported(D, ToCategory);
// Link this category into its class's category list.
ToCategory->setClassInterface(ToInterface);
ToCategory->insertNextClassCategory();
// Import protocols
llvm::SmallVector<ObjCProtocolDecl *, 4> Protocols;
llvm::SmallVector<SourceLocation, 4> ProtocolLocs;
ObjCCategoryDecl::protocol_loc_iterator FromProtoLoc
= D->protocol_loc_begin();
for (ObjCCategoryDecl::protocol_iterator FromProto = D->protocol_begin(),
FromProtoEnd = D->protocol_end();
FromProto != FromProtoEnd;
++FromProto, ++FromProtoLoc) {
ObjCProtocolDecl *ToProto
= cast_or_null<ObjCProtocolDecl>(Importer.Import(*FromProto));
if (!ToProto)
return 0;
Protocols.push_back(ToProto);
ProtocolLocs.push_back(Importer.Import(*FromProtoLoc));
}
// FIXME: If we're merging, make sure that the protocol list is the same.
ToCategory->setProtocolList(Protocols.data(), Protocols.size(),
ProtocolLocs.data(), Importer.getToContext());
} else {
Importer.Imported(D, ToCategory);
}
// Import all of the members of this category.
ImportDeclContext(D);
// If we have an implementation, import it as well.
if (D->getImplementation()) {
ObjCCategoryImplDecl *Impl
= cast_or_null<ObjCCategoryImplDecl>(
Importer.Import(D->getImplementation()));
if (!Impl)
return 0;
ToCategory->setImplementation(Impl);
}
return ToCategory;
}
Decl *ASTNodeImporter::VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
// Import the major distinguishing characteristics of a protocol.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
ObjCProtocolDecl *MergeWithProtocol = 0;
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (!(*Lookup.first)->isInIdentifierNamespace(Decl::IDNS_ObjCProtocol))
continue;
if ((MergeWithProtocol = dyn_cast<ObjCProtocolDecl>(*Lookup.first)))
break;
}
ObjCProtocolDecl *ToProto = MergeWithProtocol;
if (!ToProto || ToProto->isForwardDecl()) {
if (!ToProto) {
ToProto = ObjCProtocolDecl::Create(Importer.getToContext(), DC, Loc,
Name.getAsIdentifierInfo());
ToProto->setForwardDecl(D->isForwardDecl());
ToProto->setLexicalDeclContext(LexicalDC);
LexicalDC->addDecl(ToProto);
}
Importer.Imported(D, ToProto);
// Import protocols
llvm::SmallVector<ObjCProtocolDecl *, 4> Protocols;
llvm::SmallVector<SourceLocation, 4> ProtocolLocs;
ObjCProtocolDecl::protocol_loc_iterator
FromProtoLoc = D->protocol_loc_begin();
for (ObjCProtocolDecl::protocol_iterator FromProto = D->protocol_begin(),
FromProtoEnd = D->protocol_end();
FromProto != FromProtoEnd;
++FromProto, ++FromProtoLoc) {
ObjCProtocolDecl *ToProto
= cast_or_null<ObjCProtocolDecl>(Importer.Import(*FromProto));
if (!ToProto)
return 0;
Protocols.push_back(ToProto);
ProtocolLocs.push_back(Importer.Import(*FromProtoLoc));
}
// FIXME: If we're merging, make sure that the protocol list is the same.
ToProto->setProtocolList(Protocols.data(), Protocols.size(),
ProtocolLocs.data(), Importer.getToContext());
} else {
Importer.Imported(D, ToProto);
}
// Import all of the members of this protocol.
ImportDeclContext(D);
return ToProto;
}
Decl *ASTNodeImporter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
// Import the major distinguishing characteristics of an @interface.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
ObjCInterfaceDecl *MergeWithIface = 0;
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (!(*Lookup.first)->isInIdentifierNamespace(Decl::IDNS_Ordinary))
continue;
if ((MergeWithIface = dyn_cast<ObjCInterfaceDecl>(*Lookup.first)))
break;
}
ObjCInterfaceDecl *ToIface = MergeWithIface;
if (!ToIface || ToIface->isForwardDecl()) {
if (!ToIface) {
ToIface = ObjCInterfaceDecl::Create(Importer.getToContext(),
DC, Loc,
Name.getAsIdentifierInfo(),
Importer.Import(D->getClassLoc()),
D->isForwardDecl(),
D->isImplicitInterfaceDecl());
ToIface->setForwardDecl(D->isForwardDecl());
ToIface->setLexicalDeclContext(LexicalDC);
LexicalDC->addDecl(ToIface);
}
Importer.Imported(D, ToIface);
if (D->getSuperClass()) {
ObjCInterfaceDecl *Super
= cast_or_null<ObjCInterfaceDecl>(Importer.Import(D->getSuperClass()));
if (!Super)
return 0;
ToIface->setSuperClass(Super);
ToIface->setSuperClassLoc(Importer.Import(D->getSuperClassLoc()));
}
// Import protocols
llvm::SmallVector<ObjCProtocolDecl *, 4> Protocols;
llvm::SmallVector<SourceLocation, 4> ProtocolLocs;
ObjCInterfaceDecl::protocol_loc_iterator
FromProtoLoc = D->protocol_loc_begin();
// FIXME: Should we be usng all_referenced_protocol_begin() here?
for (ObjCInterfaceDecl::protocol_iterator FromProto = D->protocol_begin(),
FromProtoEnd = D->protocol_end();
FromProto != FromProtoEnd;
++FromProto, ++FromProtoLoc) {
ObjCProtocolDecl *ToProto
= cast_or_null<ObjCProtocolDecl>(Importer.Import(*FromProto));
if (!ToProto)
return 0;
Protocols.push_back(ToProto);
ProtocolLocs.push_back(Importer.Import(*FromProtoLoc));
}
// FIXME: If we're merging, make sure that the protocol list is the same.
ToIface->setProtocolList(Protocols.data(), Protocols.size(),
ProtocolLocs.data(), Importer.getToContext());
// Import @end range
ToIface->setAtEndRange(Importer.Import(D->getAtEndRange()));
} else {
Importer.Imported(D, ToIface);
// Check for consistency of superclasses.
DeclarationName FromSuperName, ToSuperName;
if (D->getSuperClass())
FromSuperName = Importer.Import(D->getSuperClass()->getDeclName());
if (ToIface->getSuperClass())
ToSuperName = ToIface->getSuperClass()->getDeclName();
if (FromSuperName != ToSuperName) {
Importer.ToDiag(ToIface->getLocation(),
diag::err_odr_objc_superclass_inconsistent)
<< ToIface->getDeclName();
if (ToIface->getSuperClass())
Importer.ToDiag(ToIface->getSuperClassLoc(),
diag::note_odr_objc_superclass)
<< ToIface->getSuperClass()->getDeclName();
else
Importer.ToDiag(ToIface->getLocation(),
diag::note_odr_objc_missing_superclass);
if (D->getSuperClass())
Importer.FromDiag(D->getSuperClassLoc(),
diag::note_odr_objc_superclass)
<< D->getSuperClass()->getDeclName();
else
Importer.FromDiag(D->getLocation(),
diag::note_odr_objc_missing_superclass);
return 0;
}
}
// Import categories. When the categories themselves are imported, they'll
// hook themselves into this interface.
for (ObjCCategoryDecl *FromCat = D->getCategoryList(); FromCat;
FromCat = FromCat->getNextClassCategory())
Importer.Import(FromCat);
// Import all of the members of this class.
ImportDeclContext(D);
// If we have an @implementation, import it as well.
if (D->getImplementation()) {
ObjCImplementationDecl *Impl = cast_or_null<ObjCImplementationDecl>(
Importer.Import(D->getImplementation()));
if (!Impl)
return 0;
ToIface->setImplementation(Impl);
}
return ToIface;
}
Decl *ASTNodeImporter::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
ObjCCategoryDecl *Category = cast_or_null<ObjCCategoryDecl>(
Importer.Import(D->getCategoryDecl()));
if (!Category)
return 0;
ObjCCategoryImplDecl *ToImpl = Category->getImplementation();
if (!ToImpl) {
DeclContext *DC = Importer.ImportContext(D->getDeclContext());
if (!DC)
return 0;
ToImpl = ObjCCategoryImplDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getLocation()),
Importer.Import(D->getIdentifier()),
Category->getClassInterface());
DeclContext *LexicalDC = DC;
if (D->getDeclContext() != D->getLexicalDeclContext()) {
LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return 0;
ToImpl->setLexicalDeclContext(LexicalDC);
}
LexicalDC->addDecl(ToImpl);
Category->setImplementation(ToImpl);
}
Importer.Imported(D, ToImpl);
ImportDeclContext(D);
return ToImpl;
}
Decl *ASTNodeImporter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
// Find the corresponding interface.
ObjCInterfaceDecl *Iface = cast_or_null<ObjCInterfaceDecl>(
Importer.Import(D->getClassInterface()));
if (!Iface)
return 0;
// Import the superclass, if any.
ObjCInterfaceDecl *Super = 0;
if (D->getSuperClass()) {
Super = cast_or_null<ObjCInterfaceDecl>(
Importer.Import(D->getSuperClass()));
if (!Super)
return 0;
}
ObjCImplementationDecl *Impl = Iface->getImplementation();
if (!Impl) {
// We haven't imported an implementation yet. Create a new @implementation
// now.
Impl = ObjCImplementationDecl::Create(Importer.getToContext(),
Importer.ImportContext(D->getDeclContext()),
Importer.Import(D->getLocation()),
Iface, Super);
if (D->getDeclContext() != D->getLexicalDeclContext()) {
DeclContext *LexicalDC
= Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return 0;
Impl->setLexicalDeclContext(LexicalDC);
}
// Associate the implementation with the class it implements.
Iface->setImplementation(Impl);
Importer.Imported(D, Iface->getImplementation());
} else {
Importer.Imported(D, Iface->getImplementation());
// Verify that the existing @implementation has the same superclass.
if ((Super && !Impl->getSuperClass()) ||
(!Super && Impl->getSuperClass()) ||
(Super && Impl->getSuperClass() &&
Super->getCanonicalDecl() != Impl->getSuperClass())) {
Importer.ToDiag(Impl->getLocation(),
diag::err_odr_objc_superclass_inconsistent)
<< Iface->getDeclName();
// FIXME: It would be nice to have the location of the superclass
// below.
if (Impl->getSuperClass())
Importer.ToDiag(Impl->getLocation(),
diag::note_odr_objc_superclass)
<< Impl->getSuperClass()->getDeclName();
else
Importer.ToDiag(Impl->getLocation(),
diag::note_odr_objc_missing_superclass);
if (D->getSuperClass())
Importer.FromDiag(D->getLocation(),
diag::note_odr_objc_superclass)
<< D->getSuperClass()->getDeclName();
else
Importer.FromDiag(D->getLocation(),
diag::note_odr_objc_missing_superclass);
return 0;
}
}
// Import all of the members of this @implementation.
ImportDeclContext(D);
return Impl;
}
Decl *ASTNodeImporter::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
// Import the major distinguishing characteristics of an @property.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
// Check whether we have already imported this property.
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (ObjCPropertyDecl *FoundProp
= dyn_cast<ObjCPropertyDecl>(*Lookup.first)) {
// Check property types.
if (!Importer.IsStructurallyEquivalent(D->getType(),
FoundProp->getType())) {
Importer.ToDiag(Loc, diag::err_odr_objc_property_type_inconsistent)
<< Name << D->getType() << FoundProp->getType();
Importer.ToDiag(FoundProp->getLocation(), diag::note_odr_value_here)
<< FoundProp->getType();
return 0;
}
// FIXME: Check property attributes, getters, setters, etc.?
// Consider these properties to be equivalent.
Importer.Imported(D, FoundProp);
return FoundProp;
}
}
// Import the type.
TypeSourceInfo *T = Importer.Import(D->getTypeSourceInfo());
if (!T)
return 0;
// Create the new property.
ObjCPropertyDecl *ToProperty
= ObjCPropertyDecl::Create(Importer.getToContext(), DC, Loc,
Name.getAsIdentifierInfo(),
Importer.Import(D->getAtLoc()),
T,
D->getPropertyImplementation());
Importer.Imported(D, ToProperty);
ToProperty->setLexicalDeclContext(LexicalDC);
LexicalDC->addDecl(ToProperty);
ToProperty->setPropertyAttributes(D->getPropertyAttributes());
ToProperty->setPropertyAttributesAsWritten(
D->getPropertyAttributesAsWritten());
ToProperty->setGetterName(Importer.Import(D->getGetterName()));
ToProperty->setSetterName(Importer.Import(D->getSetterName()));
ToProperty->setGetterMethodDecl(
cast_or_null<ObjCMethodDecl>(Importer.Import(D->getGetterMethodDecl())));
ToProperty->setSetterMethodDecl(
cast_or_null<ObjCMethodDecl>(Importer.Import(D->getSetterMethodDecl())));
ToProperty->setPropertyIvarDecl(
cast_or_null<ObjCIvarDecl>(Importer.Import(D->getPropertyIvarDecl())));
return ToProperty;
}
Decl *ASTNodeImporter::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
ObjCPropertyDecl *Property = cast_or_null<ObjCPropertyDecl>(
Importer.Import(D->getPropertyDecl()));
if (!Property)
return 0;
DeclContext *DC = Importer.ImportContext(D->getDeclContext());
if (!DC)
return 0;
// Import the lexical declaration context.
DeclContext *LexicalDC = DC;
if (D->getDeclContext() != D->getLexicalDeclContext()) {
LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return 0;
}
ObjCImplDecl *InImpl = dyn_cast<ObjCImplDecl>(LexicalDC);
if (!InImpl)
return 0;
// Import the ivar (for an @synthesize).
ObjCIvarDecl *Ivar = 0;
if (D->getPropertyIvarDecl()) {
Ivar = cast_or_null<ObjCIvarDecl>(
Importer.Import(D->getPropertyIvarDecl()));
if (!Ivar)
return 0;
}
ObjCPropertyImplDecl *ToImpl
= InImpl->FindPropertyImplDecl(Property->getIdentifier());
if (!ToImpl) {
ToImpl = ObjCPropertyImplDecl::Create(Importer.getToContext(), DC,
Importer.Import(D->getLocStart()),
Importer.Import(D->getLocation()),
Property,
D->getPropertyImplementation(),
Ivar,
Importer.Import(D->getPropertyIvarDeclLoc()));
ToImpl->setLexicalDeclContext(LexicalDC);
Importer.Imported(D, ToImpl);
LexicalDC->addDecl(ToImpl);
} else {
// Check that we have the same kind of property implementation (@synthesize
// vs. @dynamic).
if (D->getPropertyImplementation() != ToImpl->getPropertyImplementation()) {
Importer.ToDiag(ToImpl->getLocation(),
diag::err_odr_objc_property_impl_kind_inconsistent)
<< Property->getDeclName()
<< (ToImpl->getPropertyImplementation()
== ObjCPropertyImplDecl::Dynamic);
Importer.FromDiag(D->getLocation(),
diag::note_odr_objc_property_impl_kind)
<< D->getPropertyDecl()->getDeclName()
<< (D->getPropertyImplementation() == ObjCPropertyImplDecl::Dynamic);
return 0;
}
// For @synthesize, check that we have the same
if (D->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize &&
Ivar != ToImpl->getPropertyIvarDecl()) {
Importer.ToDiag(ToImpl->getPropertyIvarDeclLoc(),
diag::err_odr_objc_synthesize_ivar_inconsistent)
<< Property->getDeclName()
<< ToImpl->getPropertyIvarDecl()->getDeclName()
<< Ivar->getDeclName();
Importer.FromDiag(D->getPropertyIvarDeclLoc(),
diag::note_odr_objc_synthesize_ivar_here)
<< D->getPropertyIvarDecl()->getDeclName();
return 0;
}
// Merge the existing implementation with the new implementation.
Importer.Imported(D, ToImpl);
}
return ToImpl;
}
Decl *
ASTNodeImporter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) {
// Import the context of this declaration.
DeclContext *DC = Importer.ImportContext(D->getDeclContext());
if (!DC)
return 0;
DeclContext *LexicalDC = DC;
if (D->getDeclContext() != D->getLexicalDeclContext()) {
LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return 0;
}
// Import the location of this declaration.
SourceLocation Loc = Importer.Import(D->getLocation());
llvm::SmallVector<ObjCProtocolDecl *, 4> Protocols;
llvm::SmallVector<SourceLocation, 4> Locations;
ObjCForwardProtocolDecl::protocol_loc_iterator FromProtoLoc
= D->protocol_loc_begin();
for (ObjCForwardProtocolDecl::protocol_iterator FromProto
= D->protocol_begin(), FromProtoEnd = D->protocol_end();
FromProto != FromProtoEnd;
++FromProto, ++FromProtoLoc) {
ObjCProtocolDecl *ToProto
= cast_or_null<ObjCProtocolDecl>(Importer.Import(*FromProto));
if (!ToProto)
continue;
Protocols.push_back(ToProto);
Locations.push_back(Importer.Import(*FromProtoLoc));
}
ObjCForwardProtocolDecl *ToForward
= ObjCForwardProtocolDecl::Create(Importer.getToContext(), DC, Loc,
Protocols.data(), Protocols.size(),
Locations.data());
ToForward->setLexicalDeclContext(LexicalDC);
LexicalDC->addDecl(ToForward);
Importer.Imported(D, ToForward);
return ToForward;
}
Decl *ASTNodeImporter::VisitObjCClassDecl(ObjCClassDecl *D) {
// Import the context of this declaration.
DeclContext *DC = Importer.ImportContext(D->getDeclContext());
if (!DC)
return 0;
DeclContext *LexicalDC = DC;
if (D->getDeclContext() != D->getLexicalDeclContext()) {
LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return 0;
}
// Import the location of this declaration.
SourceLocation Loc = Importer.Import(D->getLocation());
llvm::SmallVector<ObjCInterfaceDecl *, 4> Interfaces;
llvm::SmallVector<SourceLocation, 4> Locations;
for (ObjCClassDecl::iterator From = D->begin(), FromEnd = D->end();
From != FromEnd; ++From) {
ObjCInterfaceDecl *ToIface
= cast_or_null<ObjCInterfaceDecl>(Importer.Import(From->getInterface()));
if (!ToIface)
continue;
Interfaces.push_back(ToIface);
Locations.push_back(Importer.Import(From->getLocation()));
}
ObjCClassDecl *ToClass = ObjCClassDecl::Create(Importer.getToContext(), DC,
Loc,
Interfaces.data(),
Locations.data(),
Interfaces.size());
ToClass->setLexicalDeclContext(LexicalDC);
LexicalDC->addDecl(ToClass);
Importer.Imported(D, ToClass);
return ToClass;
}
Decl *ASTNodeImporter::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
// For template arguments, we adopt the translation unit as our declaration
// context. This context will be fixed when the actual template declaration
// is created.
// FIXME: Import default argument.
return TemplateTypeParmDecl::Create(Importer.getToContext(),
Importer.getToContext().getTranslationUnitDecl(),
Importer.Import(D->getLocStart()),
Importer.Import(D->getLocation()),
D->getDepth(),
D->getIndex(),
Importer.Import(D->getIdentifier()),
D->wasDeclaredWithTypename(),
D->isParameterPack());
}
Decl *
ASTNodeImporter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
// Import the name of this declaration.
DeclarationName Name = Importer.Import(D->getDeclName());
if (D->getDeclName() && !Name)
return 0;
// Import the location of this declaration.
SourceLocation Loc = Importer.Import(D->getLocation());
// Import the type of this declaration.
QualType T = Importer.Import(D->getType());
if (T.isNull())
return 0;
// Import type-source information.
TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo());
if (D->getTypeSourceInfo() && !TInfo)
return 0;
// FIXME: Import default argument.
return NonTypeTemplateParmDecl::Create(Importer.getToContext(),
Importer.getToContext().getTranslationUnitDecl(),
Importer.Import(D->getInnerLocStart()),
Loc, D->getDepth(), D->getPosition(),
Name.getAsIdentifierInfo(),
T, D->isParameterPack(), TInfo);
}
Decl *
ASTNodeImporter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
// Import the name of this declaration.
DeclarationName Name = Importer.Import(D->getDeclName());
if (D->getDeclName() && !Name)
return 0;
// Import the location of this declaration.
SourceLocation Loc = Importer.Import(D->getLocation());
// Import template parameters.
TemplateParameterList *TemplateParams
= ImportTemplateParameterList(D->getTemplateParameters());
if (!TemplateParams)
return 0;
// FIXME: Import default argument.
return TemplateTemplateParmDecl::Create(Importer.getToContext(),
Importer.getToContext().getTranslationUnitDecl(),
Loc, D->getDepth(), D->getPosition(),
D->isParameterPack(),
Name.getAsIdentifierInfo(),
TemplateParams);
}
Decl *ASTNodeImporter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
// If this record has a definition in the translation unit we're coming from,
// but this particular declaration is not that definition, import the
// definition and map to that.
CXXRecordDecl *Definition
= cast_or_null<CXXRecordDecl>(D->getTemplatedDecl()->getDefinition());
if (Definition && Definition != D->getTemplatedDecl()) {
Decl *ImportedDef
= Importer.Import(Definition->getDescribedClassTemplate());
if (!ImportedDef)
return 0;
return Importer.Imported(D, ImportedDef);
}
// Import the major distinguishing characteristics of this class template.
DeclContext *DC, *LexicalDC;
DeclarationName Name;
SourceLocation Loc;
if (ImportDeclParts(D, DC, LexicalDC, Name, Loc))
return 0;
// We may already have a template of the same name; try to find and match it.
if (!DC->isFunctionOrMethod()) {
llvm::SmallVector<NamedDecl *, 4> ConflictingDecls;
for (DeclContext::lookup_result Lookup = DC->lookup(Name);
Lookup.first != Lookup.second;
++Lookup.first) {
if (!(*Lookup.first)->isInIdentifierNamespace(Decl::IDNS_Ordinary))
continue;
Decl *Found = *Lookup.first;
if (ClassTemplateDecl *FoundTemplate
= dyn_cast<ClassTemplateDecl>(Found)) {
if (IsStructuralMatch(D, FoundTemplate)) {
// The class templates structurally match; call it the same template.
// FIXME: We may be filling in a forward declaration here. Handle
// this case!
Importer.Imported(D->getTemplatedDecl(),
FoundTemplate->getTemplatedDecl());
return Importer.Imported(D, FoundTemplate);
}
}
ConflictingDecls.push_back(*Lookup.first);
}
if (!ConflictingDecls.empty()) {
Name = Importer.HandleNameConflict(Name, DC, Decl::IDNS_Ordinary,
ConflictingDecls.data(),
ConflictingDecls.size());
}
if (!Name)
return 0;
}
CXXRecordDecl *DTemplated = D->getTemplatedDecl();
// Create the declaration that is being templated.
SourceLocation StartLoc = Importer.Import(DTemplated->getLocStart());
SourceLocation IdLoc = Importer.Import(DTemplated->getLocation());
CXXRecordDecl *D2Templated = CXXRecordDecl::Create(Importer.getToContext(),
DTemplated->getTagKind(),
DC, StartLoc, IdLoc,
Name.getAsIdentifierInfo());
D2Templated->setAccess(DTemplated->getAccess());
D2Templated->setQualifierInfo(Importer.Import(DTemplated->getQualifierLoc()));
D2Templated->setLexicalDeclContext(LexicalDC);
// Create the class template declaration itself.
TemplateParameterList *TemplateParams
= ImportTemplateParameterList(D->getTemplateParameters());
if (!TemplateParams)
return 0;
ClassTemplateDecl *D2 = ClassTemplateDecl::Create(Importer.getToContext(), DC,
Loc, Name, TemplateParams,
D2Templated,
/*PrevDecl=*/0);
D2Templated->setDescribedClassTemplate(D2);
D2->setAccess(D->getAccess());
D2->setLexicalDeclContext(LexicalDC);
LexicalDC->addDecl(D2);
// Note the relationship between the class templates.
Importer.Imported(D, D2);
Importer.Imported(DTemplated, D2Templated);
if (DTemplated->isDefinition() && !D2Templated->isDefinition()) {
// FIXME: Import definition!
}
return D2;
}
Decl *ASTNodeImporter::VisitClassTemplateSpecializationDecl(
ClassTemplateSpecializationDecl *D) {
// If this record has a definition in the translation unit we're coming from,
// but this particular declaration is not that definition, import the
// definition and map to that.
TagDecl *Definition = D->getDefinition();
if (Definition && Definition != D) {
Decl *ImportedDef = Importer.Import(Definition);
if (!ImportedDef)
return 0;
return Importer.Imported(D, ImportedDef);
}
ClassTemplateDecl *ClassTemplate
= cast_or_null<ClassTemplateDecl>(Importer.Import(
D->getSpecializedTemplate()));
if (!ClassTemplate)
return 0;
// Import the context of this declaration.
DeclContext *DC = ClassTemplate->getDeclContext();
if (!DC)
return 0;
DeclContext *LexicalDC = DC;
if (D->getDeclContext() != D->getLexicalDeclContext()) {
LexicalDC = Importer.ImportContext(D->getLexicalDeclContext());
if (!LexicalDC)
return 0;
}
// Import the location of this declaration.
SourceLocation StartLoc = Importer.Import(D->getLocStart());
SourceLocation IdLoc = Importer.Import(D->getLocation());
// Import template arguments.
llvm::SmallVector<TemplateArgument, 2> TemplateArgs;
if (ImportTemplateArguments(D->getTemplateArgs().data(),
D->getTemplateArgs().size(),
TemplateArgs))
return 0;
// Try to find an existing specialization with these template arguments.
void *InsertPos = 0;
ClassTemplateSpecializationDecl *D2
= ClassTemplate->findSpecialization(TemplateArgs.data(),
TemplateArgs.size(), InsertPos);
if (D2) {
// We already have a class template specialization with these template
// arguments.
// FIXME: Check for specialization vs. instantiation errors.
if (RecordDecl *FoundDef = D2->getDefinition()) {
if (!D->isDefinition() || IsStructuralMatch(D, FoundDef)) {
// The record types structurally match, or the "from" translation
// unit only had a forward declaration anyway; call it the same
// function.
return Importer.Imported(D, FoundDef);
}
}
} else {
// Create a new specialization.
D2 = ClassTemplateSpecializationDecl::Create(Importer.getToContext(),
D->getTagKind(), DC,
StartLoc, IdLoc,
ClassTemplate,
TemplateArgs.data(),
TemplateArgs.size(),
/*PrevDecl=*/0);
D2->setSpecializationKind(D->getSpecializationKind());
// Add this specialization to the class template.
ClassTemplate->AddSpecialization(D2, InsertPos);
// Import the qualifier, if any.
D2->setQualifierInfo(Importer.Import(D->getQualifierLoc()));
// Add the specialization to this context.
D2->setLexicalDeclContext(LexicalDC);
LexicalDC->addDecl(D2);
}
Importer.Imported(D, D2);
if (D->isDefinition() && ImportDefinition(D, D2))
return 0;
return D2;
}
//----------------------------------------------------------------------------
// Import Statements
//----------------------------------------------------------------------------
Stmt *ASTNodeImporter::VisitStmt(Stmt *S) {
Importer.FromDiag(S->getLocStart(), diag::err_unsupported_ast_node)
<< S->getStmtClassName();
return 0;
}
//----------------------------------------------------------------------------
// Import Expressions
//----------------------------------------------------------------------------
Expr *ASTNodeImporter::VisitExpr(Expr *E) {
Importer.FromDiag(E->getLocStart(), diag::err_unsupported_ast_node)
<< E->getStmtClassName();
return 0;
}
Expr *ASTNodeImporter::VisitDeclRefExpr(DeclRefExpr *E) {
NestedNameSpecifier *Qualifier = 0;
if (E->getQualifier()) {
Qualifier = Importer.Import(E->getQualifier());
if (!E->getQualifier())
return 0;
}
ValueDecl *ToD = cast_or_null<ValueDecl>(Importer.Import(E->getDecl()));
if (!ToD)
return 0;
QualType T = Importer.Import(E->getType());
if (T.isNull())
return 0;
return DeclRefExpr::Create(Importer.getToContext(),
Importer.Import(E->getQualifierLoc()),
ToD,
Importer.Import(E->getLocation()),
T, E->getValueKind(),
/*FIXME:TemplateArgs=*/0);
}
Expr *ASTNodeImporter::VisitIntegerLiteral(IntegerLiteral *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return 0;
return IntegerLiteral::Create(Importer.getToContext(),
E->getValue(), T,
Importer.Import(E->getLocation()));
}
Expr *ASTNodeImporter::VisitCharacterLiteral(CharacterLiteral *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return 0;
return new (Importer.getToContext()) CharacterLiteral(E->getValue(),
E->isWide(), T,
Importer.Import(E->getLocation()));
}
Expr *ASTNodeImporter::VisitParenExpr(ParenExpr *E) {
Expr *SubExpr = Importer.Import(E->getSubExpr());
if (!SubExpr)
return 0;
return new (Importer.getToContext())
ParenExpr(Importer.Import(E->getLParen()),
Importer.Import(E->getRParen()),
SubExpr);
}
Expr *ASTNodeImporter::VisitUnaryOperator(UnaryOperator *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return 0;
Expr *SubExpr = Importer.Import(E->getSubExpr());
if (!SubExpr)
return 0;
return new (Importer.getToContext()) UnaryOperator(SubExpr, E->getOpcode(),
T, E->getValueKind(),
E->getObjectKind(),
Importer.Import(E->getOperatorLoc()));
}
Expr *ASTNodeImporter::VisitUnaryExprOrTypeTraitExpr(
UnaryExprOrTypeTraitExpr *E) {
QualType ResultType = Importer.Import(E->getType());
if (E->isArgumentType()) {
TypeSourceInfo *TInfo = Importer.Import(E->getArgumentTypeInfo());
if (!TInfo)
return 0;
return new (Importer.getToContext()) UnaryExprOrTypeTraitExpr(E->getKind(),
TInfo, ResultType,
Importer.Import(E->getOperatorLoc()),
Importer.Import(E->getRParenLoc()));
}
Expr *SubExpr = Importer.Import(E->getArgumentExpr());
if (!SubExpr)
return 0;
return new (Importer.getToContext()) UnaryExprOrTypeTraitExpr(E->getKind(),
SubExpr, ResultType,
Importer.Import(E->getOperatorLoc()),
Importer.Import(E->getRParenLoc()));
}
Expr *ASTNodeImporter::VisitBinaryOperator(BinaryOperator *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return 0;
Expr *LHS = Importer.Import(E->getLHS());
if (!LHS)
return 0;
Expr *RHS = Importer.Import(E->getRHS());
if (!RHS)
return 0;
return new (Importer.getToContext()) BinaryOperator(LHS, RHS, E->getOpcode(),
T, E->getValueKind(),
E->getObjectKind(),
Importer.Import(E->getOperatorLoc()));
}
Expr *ASTNodeImporter::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return 0;
QualType CompLHSType = Importer.Import(E->getComputationLHSType());
if (CompLHSType.isNull())
return 0;
QualType CompResultType = Importer.Import(E->getComputationResultType());
if (CompResultType.isNull())
return 0;
Expr *LHS = Importer.Import(E->getLHS());
if (!LHS)
return 0;
Expr *RHS = Importer.Import(E->getRHS());
if (!RHS)
return 0;
return new (Importer.getToContext())
CompoundAssignOperator(LHS, RHS, E->getOpcode(),
T, E->getValueKind(),
E->getObjectKind(),
CompLHSType, CompResultType,
Importer.Import(E->getOperatorLoc()));
}
bool ImportCastPath(CastExpr *E, CXXCastPath &Path) {
if (E->path_empty()) return false;
// TODO: import cast paths
return true;
}
Expr *ASTNodeImporter::VisitImplicitCastExpr(ImplicitCastExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return 0;
Expr *SubExpr = Importer.Import(E->getSubExpr());
if (!SubExpr)
return 0;
CXXCastPath BasePath;
if (ImportCastPath(E, BasePath))
return 0;
return ImplicitCastExpr::Create(Importer.getToContext(), T, E->getCastKind(),
SubExpr, &BasePath, E->getValueKind());
}
Expr *ASTNodeImporter::VisitCStyleCastExpr(CStyleCastExpr *E) {
QualType T = Importer.Import(E->getType());
if (T.isNull())
return 0;
Expr *SubExpr = Importer.Import(E->getSubExpr());
if (!SubExpr)
return 0;
TypeSourceInfo *TInfo = Importer.Import(E->getTypeInfoAsWritten());
if (!TInfo && E->getTypeInfoAsWritten())
return 0;
CXXCastPath BasePath;
if (ImportCastPath(E, BasePath))
return 0;
return CStyleCastExpr::Create(Importer.getToContext(), T,
E->getValueKind(), E->getCastKind(),
SubExpr, &BasePath, TInfo,
Importer.Import(E->getLParenLoc()),
Importer.Import(E->getRParenLoc()));
}
ASTImporter::ASTImporter(ASTContext &ToContext, FileManager &ToFileManager,
ASTContext &FromContext, FileManager &FromFileManager,
bool MinimalImport)
: ToContext(ToContext), FromContext(FromContext),
ToFileManager(ToFileManager), FromFileManager(FromFileManager),
Minimal(MinimalImport)
{
ImportedDecls[FromContext.getTranslationUnitDecl()]
= ToContext.getTranslationUnitDecl();
}
ASTImporter::~ASTImporter() { }
QualType ASTImporter::Import(QualType FromT) {
if (FromT.isNull())
return QualType();
const Type *fromTy = FromT.getTypePtr();
// Check whether we've already imported this type.
llvm::DenseMap<const Type *, const Type *>::iterator Pos
= ImportedTypes.find(fromTy);
if (Pos != ImportedTypes.end())
return ToContext.getQualifiedType(Pos->second, FromT.getLocalQualifiers());
// Import the type
ASTNodeImporter Importer(*this);
QualType ToT = Importer.Visit(fromTy);
if (ToT.isNull())
return ToT;
// Record the imported type.
ImportedTypes[fromTy] = ToT.getTypePtr();
return ToContext.getQualifiedType(ToT, FromT.getLocalQualifiers());
}
TypeSourceInfo *ASTImporter::Import(TypeSourceInfo *FromTSI) {
if (!FromTSI)
return FromTSI;
// FIXME: For now we just create a "trivial" type source info based
// on the type and a single location. Implement a real version of this.
QualType T = Import(FromTSI->getType());
if (T.isNull())
return 0;
return ToContext.getTrivialTypeSourceInfo(T,
FromTSI->getTypeLoc().getSourceRange().getBegin());
}
Decl *ASTImporter::Import(Decl *FromD) {
if (!FromD)
return 0;
// Check whether we've already imported this declaration.
llvm::DenseMap<Decl *, Decl *>::iterator Pos = ImportedDecls.find(FromD);
if (Pos != ImportedDecls.end())
return Pos->second;
// Import the type
ASTNodeImporter Importer(*this);
Decl *ToD = Importer.Visit(FromD);
if (!ToD)
return 0;
// Record the imported declaration.
ImportedDecls[FromD] = ToD;
if (TagDecl *FromTag = dyn_cast<TagDecl>(FromD)) {
// Keep track of anonymous tags that have an associated typedef.
if (FromTag->getTypedefForAnonDecl())
AnonTagsWithPendingTypedefs.push_back(FromTag);
} else if (TypedefDecl *FromTypedef = dyn_cast<TypedefDecl>(FromD)) {
// When we've finished transforming a typedef, see whether it was the
// typedef for an anonymous tag.
for (llvm::SmallVector<TagDecl *, 4>::iterator
FromTag = AnonTagsWithPendingTypedefs.begin(),
FromTagEnd = AnonTagsWithPendingTypedefs.end();
FromTag != FromTagEnd; ++FromTag) {
if ((*FromTag)->getTypedefForAnonDecl() == FromTypedef) {
if (TagDecl *ToTag = cast_or_null<TagDecl>(Import(*FromTag))) {
// We found the typedef for an anonymous tag; link them.
ToTag->setTypedefForAnonDecl(cast<TypedefDecl>(ToD));
AnonTagsWithPendingTypedefs.erase(FromTag);
break;
}
}
}
}
return ToD;
}
DeclContext *ASTImporter::ImportContext(DeclContext *FromDC) {
if (!FromDC)
return FromDC;
return cast_or_null<DeclContext>(Import(cast<Decl>(FromDC)));
}
Expr *ASTImporter::Import(Expr *FromE) {
if (!FromE)
return 0;
return cast_or_null<Expr>(Import(cast<Stmt>(FromE)));
}
Stmt *ASTImporter::Import(Stmt *FromS) {
if (!FromS)
return 0;
// Check whether we've already imported this declaration.
llvm::DenseMap<Stmt *, Stmt *>::iterator Pos = ImportedStmts.find(FromS);
if (Pos != ImportedStmts.end())
return Pos->second;
// Import the type
ASTNodeImporter Importer(*this);
Stmt *ToS = Importer.Visit(FromS);
if (!ToS)
return 0;
// Record the imported declaration.
ImportedStmts[FromS] = ToS;
return ToS;
}
NestedNameSpecifier *ASTImporter::Import(NestedNameSpecifier *FromNNS) {
if (!FromNNS)
return 0;
// FIXME: Implement!
return 0;
}
NestedNameSpecifierLoc ASTImporter::Import(NestedNameSpecifierLoc FromNNS) {
// FIXME: Implement!
return NestedNameSpecifierLoc();
}
TemplateName ASTImporter::Import(TemplateName From) {
switch (From.getKind()) {
case TemplateName::Template:
if (TemplateDecl *ToTemplate
= cast_or_null<TemplateDecl>(Import(From.getAsTemplateDecl())))
return TemplateName(ToTemplate);
return TemplateName();
case TemplateName::OverloadedTemplate: {
OverloadedTemplateStorage *FromStorage = From.getAsOverloadedTemplate();
UnresolvedSet<2> ToTemplates;
for (OverloadedTemplateStorage::iterator I = FromStorage->begin(),
E = FromStorage->end();
I != E; ++I) {
if (NamedDecl *To = cast_or_null<NamedDecl>(Import(*I)))
ToTemplates.addDecl(To);
else
return TemplateName();
}
return ToContext.getOverloadedTemplateName(ToTemplates.begin(),
ToTemplates.end());
}
case TemplateName::QualifiedTemplate: {
QualifiedTemplateName *QTN = From.getAsQualifiedTemplateName();
NestedNameSpecifier *Qualifier = Import(QTN->getQualifier());
if (!Qualifier)
return TemplateName();
if (TemplateDecl *ToTemplate
= cast_or_null<TemplateDecl>(Import(From.getAsTemplateDecl())))
return ToContext.getQualifiedTemplateName(Qualifier,
QTN->hasTemplateKeyword(),
ToTemplate);
return TemplateName();
}
case TemplateName::DependentTemplate: {
DependentTemplateName *DTN = From.getAsDependentTemplateName();
NestedNameSpecifier *Qualifier = Import(DTN->getQualifier());
if (!Qualifier)
return TemplateName();
if (DTN->isIdentifier()) {
return ToContext.getDependentTemplateName(Qualifier,
Import(DTN->getIdentifier()));
}
return ToContext.getDependentTemplateName(Qualifier, DTN->getOperator());
}
case TemplateName::SubstTemplateTemplateParmPack: {
SubstTemplateTemplateParmPackStorage *SubstPack
= From.getAsSubstTemplateTemplateParmPack();
TemplateTemplateParmDecl *Param
= cast_or_null<TemplateTemplateParmDecl>(
Import(SubstPack->getParameterPack()));
if (!Param)
return TemplateName();
ASTNodeImporter Importer(*this);
TemplateArgument ArgPack
= Importer.ImportTemplateArgument(SubstPack->getArgumentPack());
if (ArgPack.isNull())
return TemplateName();
return ToContext.getSubstTemplateTemplateParmPack(Param, ArgPack);
}
}
llvm_unreachable("Invalid template name kind");
return TemplateName();
}
SourceLocation ASTImporter::Import(SourceLocation FromLoc) {
if (FromLoc.isInvalid())
return SourceLocation();
SourceManager &FromSM = FromContext.getSourceManager();
// For now, map everything down to its spelling location, so that we
// don't have to import macro instantiations.
// FIXME: Import macro instantiations!
FromLoc = FromSM.getSpellingLoc(FromLoc);
std::pair<FileID, unsigned> Decomposed = FromSM.getDecomposedLoc(FromLoc);
SourceManager &ToSM = ToContext.getSourceManager();
return ToSM.getLocForStartOfFile(Import(Decomposed.first))
.getFileLocWithOffset(Decomposed.second);
}
SourceRange ASTImporter::Import(SourceRange FromRange) {
return SourceRange(Import(FromRange.getBegin()), Import(FromRange.getEnd()));
}
FileID ASTImporter::Import(FileID FromID) {
llvm::DenseMap<FileID, FileID>::iterator Pos
= ImportedFileIDs.find(FromID);
if (Pos != ImportedFileIDs.end())
return Pos->second;
SourceManager &FromSM = FromContext.getSourceManager();
SourceManager &ToSM = ToContext.getSourceManager();
const SrcMgr::SLocEntry &FromSLoc = FromSM.getSLocEntry(FromID);
assert(FromSLoc.isFile() && "Cannot handle macro instantiations yet");
// Include location of this file.
SourceLocation ToIncludeLoc = Import(FromSLoc.getFile().getIncludeLoc());
// Map the FileID for to the "to" source manager.
FileID ToID;
const SrcMgr::ContentCache *Cache = FromSLoc.getFile().getContentCache();
if (Cache->OrigEntry) {
// FIXME: We probably want to use getVirtualFile(), so we don't hit the
// disk again
// FIXME: We definitely want to re-use the existing MemoryBuffer, rather
// than mmap the files several times.
const FileEntry *Entry = ToFileManager.getFile(Cache->OrigEntry->getName());
ToID = ToSM.createFileID(Entry, ToIncludeLoc,
FromSLoc.getFile().getFileCharacteristic());
} else {
// FIXME: We want to re-use the existing MemoryBuffer!
const llvm::MemoryBuffer *
FromBuf = Cache->getBuffer(FromContext.getDiagnostics(), FromSM);
llvm::MemoryBuffer *ToBuf
= llvm::MemoryBuffer::getMemBufferCopy(FromBuf->getBuffer(),
FromBuf->getBufferIdentifier());
ToID = ToSM.createFileIDForMemBuffer(ToBuf);
}
ImportedFileIDs[FromID] = ToID;
return ToID;
}
void ASTImporter::ImportDefinition(Decl *From) {
Decl *To = Import(From);
if (!To)
return;
if (DeclContext *FromDC = cast<DeclContext>(From)) {
ASTNodeImporter Importer(*this);
Importer.ImportDeclContext(FromDC, true);
}
}
DeclarationName ASTImporter::Import(DeclarationName FromName) {
if (!FromName)
return DeclarationName();
switch (FromName.getNameKind()) {
case DeclarationName::Identifier:
return Import(FromName.getAsIdentifierInfo());
case DeclarationName::ObjCZeroArgSelector:
case DeclarationName::ObjCOneArgSelector:
case DeclarationName::ObjCMultiArgSelector:
return Import(FromName.getObjCSelector());
case DeclarationName::CXXConstructorName: {
QualType T = Import(FromName.getCXXNameType());
if (T.isNull())
return DeclarationName();
return ToContext.DeclarationNames.getCXXConstructorName(
ToContext.getCanonicalType(T));
}
case DeclarationName::CXXDestructorName: {
QualType T = Import(FromName.getCXXNameType());
if (T.isNull())
return DeclarationName();
return ToContext.DeclarationNames.getCXXDestructorName(
ToContext.getCanonicalType(T));
}
case DeclarationName::CXXConversionFunctionName: {
QualType T = Import(FromName.getCXXNameType());
if (T.isNull())
return DeclarationName();
return ToContext.DeclarationNames.getCXXConversionFunctionName(
ToContext.getCanonicalType(T));
}
case DeclarationName::CXXOperatorName:
return ToContext.DeclarationNames.getCXXOperatorName(
FromName.getCXXOverloadedOperator());
case DeclarationName::CXXLiteralOperatorName:
return ToContext.DeclarationNames.getCXXLiteralOperatorName(
Import(FromName.getCXXLiteralIdentifier()));
case DeclarationName::CXXUsingDirective:
// FIXME: STATICS!
return DeclarationName::getUsingDirectiveName();
}
// Silence bogus GCC warning
return DeclarationName();
}
IdentifierInfo *ASTImporter::Import(const IdentifierInfo *FromId) {
if (!FromId)
return 0;
return &ToContext.Idents.get(FromId->getName());
}
Selector ASTImporter::Import(Selector FromSel) {
if (FromSel.isNull())
return Selector();
llvm::SmallVector<IdentifierInfo *, 4> Idents;
Idents.push_back(Import(FromSel.getIdentifierInfoForSlot(0)));
for (unsigned I = 1, N = FromSel.getNumArgs(); I < N; ++I)
Idents.push_back(Import(FromSel.getIdentifierInfoForSlot(I)));
return ToContext.Selectors.getSelector(FromSel.getNumArgs(), Idents.data());
}
DeclarationName ASTImporter::HandleNameConflict(DeclarationName Name,
DeclContext *DC,
unsigned IDNS,
NamedDecl **Decls,
unsigned NumDecls) {
return Name;
}
DiagnosticBuilder ASTImporter::ToDiag(SourceLocation Loc, unsigned DiagID) {
return ToContext.getDiagnostics().Report(Loc, DiagID);
}
DiagnosticBuilder ASTImporter::FromDiag(SourceLocation Loc, unsigned DiagID) {
return FromContext.getDiagnostics().Report(Loc, DiagID);
}
Decl *ASTImporter::Imported(Decl *From, Decl *To) {
ImportedDecls[From] = To;
return To;
}
bool ASTImporter::IsStructurallyEquivalent(QualType From, QualType To) {
llvm::DenseMap<const Type *, const Type *>::iterator Pos
= ImportedTypes.find(From.getTypePtr());
if (Pos != ImportedTypes.end() && ToContext.hasSameType(Import(From), To))
return true;
StructuralEquivalenceContext Ctx(FromContext, ToContext, NonEquivalentDecls);
return Ctx.IsStructurallyEquivalent(From, To);
}
Reference in New Issue View Git Blame Copy Permalink