void ObjCMethodDecl::createImplicitParams(ASTContext &Context,
const ObjCInterfaceDecl *OID) {
QualType selfTy;
if (isInstanceMethod()) {
// There may be no interface context due to error in declaration
// of the interface (which has been reported). Recover gracefully.
if (OID) {
selfTy = Context.getObjCInterfaceType(OID);
selfTy = Context.getObjCObjectPointerType(selfTy);
} else {
selfTy = Context.getObjCIdType();
}
} else // we have a factory method.
selfTy = Context.getObjCClassType();
bool selfIsPseudoStrong = false;
bool selfIsConsumed = false;
if (Context.getLangOpts().ObjCAutoRefCount) {
if (isInstanceMethod()) {
selfIsConsumed = hasAttr<NSConsumesSelfAttr>();
// 'self' is always __strong. It's actually pseudo-strong except
// in init methods (or methods labeled ns_consumes_self), though.
Qualifiers qs;
qs.setObjCLifetime(Qualifiers::OCL_Strong);
selfTy = Context.getQualifiedType(selfTy, qs);
// In addition, 'self' is const unless this is an init method.
if (getMethodFamily() != OMF_init && !selfIsConsumed) {
selfTy = selfTy.withConst();
selfIsPseudoStrong = true;
}
}
else {
assert(isClassMethod());
// 'self' is always const in class methods.
selfTy = selfTy.withConst();
selfIsPseudoStrong = true;
}
}
ImplicitParamDecl *self
= ImplicitParamDecl::Create(Context, this, SourceLocation(),
&Context.Idents.get("self"), selfTy);
setSelfDecl(self);
if (selfIsConsumed)
self->addAttr(new (Context) NSConsumedAttr(SourceLocation(), Context));
if (selfIsPseudoStrong)
self->setARCPseudoStrong(true);
setCmdDecl(ImplicitParamDecl::Create(Context, this, SourceLocation(),
&Context.Idents.get("_cmd"),
Context.getObjCSelType()));
}
QualType CXXMethodDecl::getThisType(ASTContext &C) const {
// C++ 9.3.2p1: The type of this in a member function of a class X is X*.
// If the member function is declared const, the type of this is const X*,
// if the member function is declared volatile, the type of this is
// volatile X*, and if the member function is declared const volatile,
// the type of this is const volatile X*.
assert(isInstance() && "No 'this' for static methods!");
QualType ClassTy = C.getTypeDeclType(getParent());
ClassTy = C.getQualifiedType(ClassTy,
Qualifiers::fromCVRMask(getTypeQualifiers()));
return C.getPointerType(ClassTy);
}
/// \brief Return the fully qualified type, including fully-qualified
/// versions of any template parameters.
QualType getFullyQualifiedType(QualType QT, const ASTContext &Ctx) {
// In case of myType* we need to strip the pointer first, fully
// qualify and attach the pointer once again.
if (isa<PointerType>(QT.getTypePtr())) {
// Get the qualifiers.
Qualifiers Quals = QT.getQualifiers();
QT = getFullyQualifiedType(QT->getPointeeType(), Ctx);
QT = Ctx.getPointerType(QT);
// Add back the qualifiers.
QT = Ctx.getQualifiedType(QT, Quals);
return QT;
}
// In case of myType& we need to strip the reference first, fully
// qualify and attach the reference once again.
if (isa<ReferenceType>(QT.getTypePtr())) {
// Get the qualifiers.
bool IsLValueRefTy = isa<LValueReferenceType>(QT.getTypePtr());
Qualifiers Quals = QT.getQualifiers();
QT = getFullyQualifiedType(QT->getPointeeType(), Ctx);
// Add the r- or l-value reference type back to the fully
// qualified one.
if (IsLValueRefTy)
QT = Ctx.getLValueReferenceType(QT);
else
QT = Ctx.getRValueReferenceType(QT);
// Add back the qualifiers.
QT = Ctx.getQualifiedType(QT, Quals);
return QT;
}
// Remove the part of the type related to the type being a template
// parameter (we won't report it as part of the 'type name' and it
// is actually make the code below to be more complex (to handle
// those)
while (isa<SubstTemplateTypeParmType>(QT.getTypePtr())) {
// Get the qualifiers.
Qualifiers Quals = QT.getQualifiers();
QT = dyn_cast<SubstTemplateTypeParmType>(QT.getTypePtr())->desugar();
// Add back the qualifiers.
QT = Ctx.getQualifiedType(QT, Quals);
}
NestedNameSpecifier *Prefix = nullptr;
Qualifiers PrefixQualifiers;
ElaboratedTypeKeyword Keyword = ETK_None;
if (const auto *ETypeInput = dyn_cast<ElaboratedType>(QT.getTypePtr())) {
QT = ETypeInput->getNamedType();
Keyword = ETypeInput->getKeyword();
}
// Create a nested name specifier if needed (i.e. if the decl context
// is not the global scope.
Prefix = createNestedNameSpecifierForScopeOf(Ctx, QT.getTypePtr(),
true /*FullyQualified*/);
// move the qualifiers on the outer type (avoid 'std::const string'!)
if (Prefix) {
PrefixQualifiers = QT.getLocalQualifiers();
QT = QualType(QT.getTypePtr(), 0);
}
// In case of template specializations iterate over the arguments and
// fully qualify them as well.
if (isa<const TemplateSpecializationType>(QT.getTypePtr()) ||
isa<const RecordType>(QT.getTypePtr())) {
// We are asked to fully qualify and we have a Record Type (which
// may pont to a template specialization) or Template
// Specialization Type. We need to fully qualify their arguments.
Qualifiers Quals = QT.getLocalQualifiers();
const Type *TypePtr = getFullyQualifiedTemplateType(Ctx, QT.getTypePtr());
QT = Ctx.getQualifiedType(TypePtr, Quals);
}
if (Prefix || Keyword != ETK_None) {
QT = Ctx.getElaboratedType(Keyword, Prefix, QT);
QT = Ctx.getQualifiedType(QT, PrefixQualifiers);
}
return QT;
}
