contrib/llvm/tools/clang/lib/Serialization/ASTCommon.h

   1 //===- ASTCommon.h - Common stuff for ASTReader/ASTWriter -*- C++ -*-=========//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 //  This file defines common functions that both ASTReader and ASTWriter use.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_CLANG_SERIALIZATION_LIB_AST_COMMON_H
  15 #define LLVM_CLANG_SERIALIZATION_LIB_AST_COMMON_H
  16
  17 #include "clang/Serialization/ASTBitCodes.h"
  18 #include "clang/AST/ASTContext.h"
  19
  20 namespace clang {
  21
  22 namespace serialization {
  23
  24 enum DeclUpdateKind {
  25   UPD_CXX_SET_DEFINITIONDATA,
  26   UPD_CXX_ADDED_IMPLICIT_MEMBER,
  27   UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION,
  28   UPD_CXX_ADDED_ANONYMOUS_NAMESPACE,
  29   UPD_CXX_INSTANTIATED_STATIC_DATA_MEMBER
  30 };
  31
  32 TypeIdx TypeIdxFromBuiltin(const BuiltinType *BT);
  33
  34 template <typename IdxForTypeTy>
  35 TypeID MakeTypeID(ASTContext &Context, QualType T, IdxForTypeTy IdxForType) {
  36   if (T.isNull())
  37     return PREDEF_TYPE_NULL_ID;
  38
  39   unsigned FastQuals = T.getLocalFastQualifiers();
  40   T.removeLocalFastQualifiers();
  41
  42   if (T.hasLocalNonFastQualifiers())
  43     return IdxForType(T).asTypeID(FastQuals);
  44
  45   assert(!T.hasLocalQualifiers());
  46
  47   if (const BuiltinType *BT = dyn_cast<BuiltinType>(T.getTypePtr()))
  48     return TypeIdxFromBuiltin(BT).asTypeID(FastQuals);
  49
  50   if (T == Context.AutoDeductTy)
  51     return TypeIdx(PREDEF_TYPE_AUTO_DEDUCT).asTypeID(FastQuals);
  52   if (T == Context.AutoRRefDeductTy)
  53     return TypeIdx(PREDEF_TYPE_AUTO_RREF_DEDUCT).asTypeID(FastQuals);
  54
  55   return IdxForType(T).asTypeID(FastQuals);
  56 }
  57
  58 unsigned ComputeHash(Selector Sel);
  59
  60 } // namespace serialization
  61
  62 } // namespace clang
  63
  64 #endif