| //===- ASTCommon.h - Common stuff for ASTReader/ASTWriter -*- 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 common functions that both ASTReader and ASTWriter use. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_SERIALIZATION_LIB_AST_COMMON_H |
| #define LLVM_CLANG_SERIALIZATION_LIB_AST_COMMON_H |
| |
| #include "clang/AST/ASTContext.h" |
| #include "clang/Serialization/ASTBitCodes.h" |
| |
| namespace clang { |
| |
| namespace serialization { |
| |
| enum DeclUpdateKind { |
| UPD_CXX_ADDED_IMPLICIT_MEMBER, |
| UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION, |
| UPD_CXX_ADDED_ANONYMOUS_NAMESPACE, |
| UPD_CXX_INSTANTIATED_STATIC_DATA_MEMBER |
| }; |
| |
| TypeIdx TypeIdxFromBuiltin(const BuiltinType *BT); |
| |
| template <typename IdxForTypeTy> |
| TypeID MakeTypeID(ASTContext &Context, QualType T, IdxForTypeTy IdxForType) { |
| if (T.isNull()) |
| return PREDEF_TYPE_NULL_ID; |
| |
| unsigned FastQuals = T.getLocalFastQualifiers(); |
| T.removeLocalFastQualifiers(); |
| |
| if (T.hasLocalNonFastQualifiers()) |
| return IdxForType(T).asTypeID(FastQuals); |
| |
| assert(!T.hasLocalQualifiers()); |
| |
| if (const BuiltinType *BT = dyn_cast<BuiltinType>(T.getTypePtr())) |
| return TypeIdxFromBuiltin(BT).asTypeID(FastQuals); |
| |
| if (T == Context.AutoDeductTy) |
| return TypeIdx(PREDEF_TYPE_AUTO_DEDUCT).asTypeID(FastQuals); |
| if (T == Context.AutoRRefDeductTy) |
| return TypeIdx(PREDEF_TYPE_AUTO_RREF_DEDUCT).asTypeID(FastQuals); |
| if (T == Context.VaListTagTy) |
| return TypeIdx(PREDEF_TYPE_VA_LIST_TAG).asTypeID(FastQuals); |
| |
| return IdxForType(T).asTypeID(FastQuals); |
| } |
| |
| unsigned ComputeHash(Selector Sel); |
| |
| /// \brief Retrieve the "definitive" declaration that provides all of the |
| /// visible entries for the given declaration context, if there is one. |
| /// |
| /// The "definitive" declaration is the only place where we need to look to |
| /// find information about the declarations within the given declaration |
| /// context. For example, C++ and Objective-C classes, C structs/unions, and |
| /// Objective-C protocols, categories, and extensions are all defined in a |
| /// single place in the source code, so they have definitive declarations |
| /// associated with them. C++ namespaces, on the other hand, can have |
| /// multiple definitions. |
| const Decl *getDefinitiveDeclContext(const DeclContext *DC); |
| |
| } // namespace serialization |
| |
| } // namespace clang |
| |
| #endif |