зеркало из https://github.com/microsoft/clang-1.git
move some code, no other change.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47419 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -148,73 +148,6 @@ QualType Sema::ConvertDeclSpecToType(DeclSpec &DS) {
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return Result;
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}
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AttributeList *Sema::ProcessTypeAttributes(QualType &Result, AttributeList *AL){
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// Scan through and apply attributes to this type where it makes sense. Some
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// attributes (such as __address_space__, __vector_size__, etc) apply to the
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// type, but others can be present in the type specifiers even though they
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// apply to the decl. Here we apply and delete attributes that apply to the
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// type and leave the others alone.
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llvm::SmallVector<AttributeList *, 8> LeftOverAttrs;
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while (AL) {
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// Unlink this attribute from the chain, so we can process it independently.
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AttributeList *ThisAttr = AL;
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AL = AL->getNext();
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ThisAttr->setNext(0);
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// If this is an attribute we can handle, do so now, otherwise, add it to
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// the LeftOverAttrs list for rechaining.
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switch (ThisAttr->getKind()) {
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default: break;
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case AttributeList::AT_address_space:
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Result = HandleAddressSpaceTypeAttribute(Result, ThisAttr);
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delete ThisAttr; // Consume the attribute.
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continue;
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}
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LeftOverAttrs.push_back(ThisAttr);
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}
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// Rechain any attributes that haven't been deleted to the DeclSpec.
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AttributeList *List = 0;
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for (unsigned i = 0, e = LeftOverAttrs.size(); i != e; ++i) {
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LeftOverAttrs[i]->setNext(List);
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List = LeftOverAttrs[i];
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}
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return List;
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}
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/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the
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/// specified type.
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QualType Sema::HandleAddressSpaceTypeAttribute(QualType Type,
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AttributeList *Attr) {
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// If this type is already address space qualified, reject it.
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// Clause 6.7.3 - Type qualifiers: "No type shall be qualified by qualifiers
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// for two or more different address spaces."
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if (Type.getAddressSpace()) {
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Diag(Attr->getLoc(), diag::err_attribute_address_multiple_qualifiers);
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return Type;
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}
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// Check the attribute arguments.
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if (Attr->getNumArgs() != 1) {
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Diag(Attr->getLoc(), diag::err_attribute_wrong_number_arguments,
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std::string("1"));
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return Type;
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}
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Expr *ASArgExpr = static_cast<Expr *>(Attr->getArg(0));
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llvm::APSInt addrSpace(32);
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if (!ASArgExpr->isIntegerConstantExpr(addrSpace, Context)) {
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Diag(Attr->getLoc(), diag::err_attribute_address_space_not_int,
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ASArgExpr->getSourceRange());
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return Type;
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}
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unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue());
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return Context.getASQualType(Type, ASIdx);
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}
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/// GetTypeForDeclarator - Convert the type for the specified declarator to Type
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/// instances.
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QualType Sema::GetTypeForDeclarator(Declarator &D, Scope *S) {
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@ -485,3 +418,70 @@ Sema::TypeResult Sema::ActOnParamDeclaratorType(Scope *S, Declarator &D) {
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// though it will not reflect the user specified type.
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return T.getAsOpaquePtr();
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}
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AttributeList *Sema::ProcessTypeAttributes(QualType &Result, AttributeList *AL){
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// Scan through and apply attributes to this type where it makes sense. Some
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// attributes (such as __address_space__, __vector_size__, etc) apply to the
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// type, but others can be present in the type specifiers even though they
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// apply to the decl. Here we apply and delete attributes that apply to the
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// type and leave the others alone.
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llvm::SmallVector<AttributeList *, 8> LeftOverAttrs;
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while (AL) {
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// Unlink this attribute from the chain, so we can process it independently.
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AttributeList *ThisAttr = AL;
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AL = AL->getNext();
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ThisAttr->setNext(0);
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// If this is an attribute we can handle, do so now, otherwise, add it to
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// the LeftOverAttrs list for rechaining.
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switch (ThisAttr->getKind()) {
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default: break;
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case AttributeList::AT_address_space:
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Result = HandleAddressSpaceTypeAttribute(Result, ThisAttr);
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delete ThisAttr; // Consume the attribute.
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continue;
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}
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LeftOverAttrs.push_back(ThisAttr);
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}
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// Rechain any attributes that haven't been deleted to the DeclSpec.
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AttributeList *List = 0;
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for (unsigned i = 0, e = LeftOverAttrs.size(); i != e; ++i) {
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LeftOverAttrs[i]->setNext(List);
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List = LeftOverAttrs[i];
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}
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return List;
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}
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/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the
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/// specified type.
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QualType Sema::HandleAddressSpaceTypeAttribute(QualType Type,
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AttributeList *Attr) {
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// If this type is already address space qualified, reject it.
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// Clause 6.7.3 - Type qualifiers: "No type shall be qualified by qualifiers
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// for two or more different address spaces."
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if (Type.getAddressSpace()) {
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Diag(Attr->getLoc(), diag::err_attribute_address_multiple_qualifiers);
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return Type;
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}
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// Check the attribute arguments.
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if (Attr->getNumArgs() != 1) {
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Diag(Attr->getLoc(), diag::err_attribute_wrong_number_arguments,
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std::string("1"));
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return Type;
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}
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Expr *ASArgExpr = static_cast<Expr *>(Attr->getArg(0));
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llvm::APSInt addrSpace(32);
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if (!ASArgExpr->isIntegerConstantExpr(addrSpace, Context)) {
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Diag(Attr->getLoc(), diag::err_attribute_address_space_not_int,
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ASArgExpr->getSourceRange());
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return Type;
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}
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unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue());
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return Context.getASQualType(Type, ASIdx);
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}
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