unittests/DebugInfo/PDB/PDBApiTest.cpp

   1 //===- llvm/unittest/DebugInfo/PDB/PDBApiTest.cpp -------------------------===//
   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 #include <type_traits>
  11 #include <unordered_map>
  12
  13 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
  14 #include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
  15 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
  16 #include "llvm/DebugInfo/PDB/PDBSymbolAnnotation.h"
  17 #include "llvm/DebugInfo/PDB/PDBSymbolBlock.h"
  18 #include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
  19 #include "llvm/DebugInfo/PDB/PDBSymbolCompilandDetails.h"
  20 #include "llvm/DebugInfo/PDB/PDBSymbolCompilandEnv.h"
  21 #include "llvm/DebugInfo/PDB/PDBSymbolCustom.h"
  22 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
  23 #include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
  24 #include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
  25 #include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugEnd.h"
  26 #include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugStart.h"
  27 #include "llvm/DebugInfo/PDB/PDBSymbolLabel.h"
  28 #include "llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h"
  29 #include "llvm/DebugInfo/PDB/PDBSymbolThunk.h"
  30 #include "llvm/DebugInfo/PDB/PDBSymbolTypeArray.h"
  31 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
  32 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
  33 #include "llvm/DebugInfo/PDB/PDBSymbolTypeCustom.h"
  34 #include "llvm/DebugInfo/PDB/PDBSymbolTypeDimension.h"
  35 #include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
  36 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFriend.h"
  37 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionArg.h"
  38 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
  39 #include "llvm/DebugInfo/PDB/PDBSymbolTypeManaged.h"
  40 #include "llvm/DebugInfo/PDB/PDBSymbolTypePointer.h"
  41 #include "llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h"
  42 #include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
  43 #include "llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h"
  44 #include "llvm/DebugInfo/PDB/PDBSymbolTypeVTableShape.h"
  45 #include "llvm/DebugInfo/PDB/PDBSymbolUnknown.h"
  46 #include "llvm/DebugInfo/PDB/PDBSymbolUsingNamespace.h"
  47 #include "llvm/DebugInfo/PDB/PDBTypes.h"
  48 #include "gtest/gtest.h"
  49 using namespace llvm;
  50
  51 namespace std {
  52   template<>
  53   struct hash<PDB_SymType> {
  54   public:
  55     std::size_t operator()(PDB_SymType Symbol) const {
  56       return std::hash<int>()(static_cast<int>(Symbol));
  57     }
  58   };
  59 }
  60
  61 namespace {
  62
  63 #define MOCK_SYMBOL_ACCESSOR(Func)                                             \
  64   decltype(std::declval<IPDBRawSymbol>().Func()) Func() const override {       \
  65     typedef decltype(IPDBRawSymbol::Func()) ReturnType;                        \
  66     return ReturnType();                                                       \
  67   }
  68
  69 class MockRawSymbol : public IPDBRawSymbol {
  70 public:
  71   MockRawSymbol(PDB_SymType SymType) : Type(SymType) {}
  72
  73   void dump(llvm::raw_ostream &OS) const override {}
  74
  75   std::unique_ptr<IPDBEnumSymbols>
  76   findChildren(PDB_SymType Type, StringRef Name,
  77                PDB_NameSearchFlags Flags) const override {
  78     return nullptr;
  79   }
  80   std::unique_ptr<IPDBEnumSymbols>
  81   findChildrenByRVA(PDB_SymType Type, StringRef Name, PDB_NameSearchFlags Flags,
  82                     uint32_t RVA) const override {
  83     return nullptr;
  84   }
  85   std::unique_ptr<IPDBEnumSymbols>
  86   findInlineFramesByRVA(uint32_t RVA) const override {
  87     return nullptr;
  88   }
  89
  90   void getDataBytes(llvm::SmallVector<uint8_t, 32> &bytes) const override {}
  91
  92   PDB_SymType getSymTag() const override { return Type; }
  93
  94   MOCK_SYMBOL_ACCESSOR(getAccess)
  95   MOCK_SYMBOL_ACCESSOR(getAddressOffset)
  96   MOCK_SYMBOL_ACCESSOR(getAddressSection)
  97   MOCK_SYMBOL_ACCESSOR(getAge)
  98   MOCK_SYMBOL_ACCESSOR(getArrayIndexTypeId)
  99   MOCK_SYMBOL_ACCESSOR(getBackEndBuild)
 100   MOCK_SYMBOL_ACCESSOR(getBackEndMajor)
 101   MOCK_SYMBOL_ACCESSOR(getBackEndMinor)
 102   MOCK_SYMBOL_ACCESSOR(getBaseDataOffset)
 103   MOCK_SYMBOL_ACCESSOR(getBaseDataSlot)
 104   MOCK_SYMBOL_ACCESSOR(getBaseSymbolId)
 105   MOCK_SYMBOL_ACCESSOR(getBuiltinType)
 106   MOCK_SYMBOL_ACCESSOR(getBitPosition)
 107   MOCK_SYMBOL_ACCESSOR(getCallingConvention)
 108   MOCK_SYMBOL_ACCESSOR(getClassParentId)
 109   MOCK_SYMBOL_ACCESSOR(getCompilerName)
 110   MOCK_SYMBOL_ACCESSOR(getCount)
 111   MOCK_SYMBOL_ACCESSOR(getCountLiveRanges)
 112   MOCK_SYMBOL_ACCESSOR(getFrontEndBuild)
 113   MOCK_SYMBOL_ACCESSOR(getFrontEndMajor)
 114   MOCK_SYMBOL_ACCESSOR(getFrontEndMinor)
 115   MOCK_SYMBOL_ACCESSOR(getLanguage)
 116   MOCK_SYMBOL_ACCESSOR(getLexicalParentId)
 117   MOCK_SYMBOL_ACCESSOR(getLibraryName)
 118   MOCK_SYMBOL_ACCESSOR(getLiveRangeStartAddressOffset)
 119   MOCK_SYMBOL_ACCESSOR(getLiveRangeStartAddressSection)
 120   MOCK_SYMBOL_ACCESSOR(getLiveRangeStartRelativeVirtualAddress)
 121   MOCK_SYMBOL_ACCESSOR(getLocalBasePointerRegisterId)
 122   MOCK_SYMBOL_ACCESSOR(getLowerBoundId)
 123   MOCK_SYMBOL_ACCESSOR(getMemorySpaceKind)
 124   MOCK_SYMBOL_ACCESSOR(getName)
 125   MOCK_SYMBOL_ACCESSOR(getNumberOfAcceleratorPointerTags)
 126   MOCK_SYMBOL_ACCESSOR(getNumberOfColumns)
 127   MOCK_SYMBOL_ACCESSOR(getNumberOfModifiers)
 128   MOCK_SYMBOL_ACCESSOR(getNumberOfRegisterIndices)
 129   MOCK_SYMBOL_ACCESSOR(getNumberOfRows)
 130   MOCK_SYMBOL_ACCESSOR(getObjectFileName)
 131   MOCK_SYMBOL_ACCESSOR(getOemId)
 132   MOCK_SYMBOL_ACCESSOR(getOemSymbolId)
 133   MOCK_SYMBOL_ACCESSOR(getOffsetInUdt)
 134   MOCK_SYMBOL_ACCESSOR(getPlatform)
 135   MOCK_SYMBOL_ACCESSOR(getRank)
 136   MOCK_SYMBOL_ACCESSOR(getRegisterId)
 137   MOCK_SYMBOL_ACCESSOR(getRegisterType)
 138   MOCK_SYMBOL_ACCESSOR(getRelativeVirtualAddress)
 139   MOCK_SYMBOL_ACCESSOR(getSamplerSlot)
 140   MOCK_SYMBOL_ACCESSOR(getSignature)
 141   MOCK_SYMBOL_ACCESSOR(getSizeInUdt)
 142   MOCK_SYMBOL_ACCESSOR(getSlot)
 143   MOCK_SYMBOL_ACCESSOR(getSourceFileName)
 144   MOCK_SYMBOL_ACCESSOR(getStride)
 145   MOCK_SYMBOL_ACCESSOR(getSubTypeId)
 146   MOCK_SYMBOL_ACCESSOR(getSymbolsFileName)
 147   MOCK_SYMBOL_ACCESSOR(getSymIndexId)
 148   MOCK_SYMBOL_ACCESSOR(getTargetOffset)
 149   MOCK_SYMBOL_ACCESSOR(getTargetRelativeVirtualAddress)
 150   MOCK_SYMBOL_ACCESSOR(getTargetVirtualAddress)
 151   MOCK_SYMBOL_ACCESSOR(getTargetSection)
 152   MOCK_SYMBOL_ACCESSOR(getTextureSlot)
 153   MOCK_SYMBOL_ACCESSOR(getTimeStamp)
 154   MOCK_SYMBOL_ACCESSOR(getToken)
 155   MOCK_SYMBOL_ACCESSOR(getTypeId)
 156   MOCK_SYMBOL_ACCESSOR(getUavSlot)
 157   MOCK_SYMBOL_ACCESSOR(getUndecoratedName)
 158   MOCK_SYMBOL_ACCESSOR(getUnmodifiedTypeId)
 159   MOCK_SYMBOL_ACCESSOR(getUpperBoundId)
 160   MOCK_SYMBOL_ACCESSOR(getVirtualBaseDispIndex)
 161   MOCK_SYMBOL_ACCESSOR(getVirtualBaseOffset)
 162   MOCK_SYMBOL_ACCESSOR(getVirtualTableShapeId)
 163   MOCK_SYMBOL_ACCESSOR(getDataKind)
 164   MOCK_SYMBOL_ACCESSOR(getGuid)
 165   MOCK_SYMBOL_ACCESSOR(getOffset)
 166   MOCK_SYMBOL_ACCESSOR(getThisAdjust)
 167   MOCK_SYMBOL_ACCESSOR(getVirtualBasePointerOffset)
 168   MOCK_SYMBOL_ACCESSOR(getLocationType)
 169   MOCK_SYMBOL_ACCESSOR(getMachineType)
 170   MOCK_SYMBOL_ACCESSOR(getThunkOrdinal)
 171   MOCK_SYMBOL_ACCESSOR(getLength)
 172   MOCK_SYMBOL_ACCESSOR(getLiveRangeLength)
 173   MOCK_SYMBOL_ACCESSOR(getVirtualAddress)
 174   MOCK_SYMBOL_ACCESSOR(getUdtKind)
 175   MOCK_SYMBOL_ACCESSOR(hasConstructor)
 176   MOCK_SYMBOL_ACCESSOR(hasCustomCallingConvention)
 177   MOCK_SYMBOL_ACCESSOR(hasFarReturn)
 178   MOCK_SYMBOL_ACCESSOR(isCode)
 179   MOCK_SYMBOL_ACCESSOR(isCompilerGenerated)
 180   MOCK_SYMBOL_ACCESSOR(isConstType)
 181   MOCK_SYMBOL_ACCESSOR(isEditAndContinueEnabled)
 182   MOCK_SYMBOL_ACCESSOR(isFunction)
 183   MOCK_SYMBOL_ACCESSOR(getAddressTaken)
 184   MOCK_SYMBOL_ACCESSOR(getNoStackOrdering)
 185   MOCK_SYMBOL_ACCESSOR(hasAlloca)
 186   MOCK_SYMBOL_ACCESSOR(hasAssignmentOperator)
 187   MOCK_SYMBOL_ACCESSOR(hasCTypes)
 188   MOCK_SYMBOL_ACCESSOR(hasCastOperator)
 189   MOCK_SYMBOL_ACCESSOR(hasDebugInfo)
 190   MOCK_SYMBOL_ACCESSOR(hasEH)
 191   MOCK_SYMBOL_ACCESSOR(hasEHa)
 192   MOCK_SYMBOL_ACCESSOR(hasInlAsm)
 193   MOCK_SYMBOL_ACCESSOR(hasInlineAttribute)
 194   MOCK_SYMBOL_ACCESSOR(hasInterruptReturn)
 195   MOCK_SYMBOL_ACCESSOR(hasLongJump)
 196   MOCK_SYMBOL_ACCESSOR(hasManagedCode)
 197   MOCK_SYMBOL_ACCESSOR(hasNestedTypes)
 198   MOCK_SYMBOL_ACCESSOR(hasNoInlineAttribute)
 199   MOCK_SYMBOL_ACCESSOR(hasNoReturnAttribute)
 200   MOCK_SYMBOL_ACCESSOR(hasOptimizedCodeDebugInfo)
 201   MOCK_SYMBOL_ACCESSOR(hasOverloadedOperator)
 202   MOCK_SYMBOL_ACCESSOR(hasSEH)
 203   MOCK_SYMBOL_ACCESSOR(hasSecurityChecks)
 204   MOCK_SYMBOL_ACCESSOR(hasSetJump)
 205   MOCK_SYMBOL_ACCESSOR(hasStrictGSCheck)
 206   MOCK_SYMBOL_ACCESSOR(isAcceleratorGroupSharedLocal)
 207   MOCK_SYMBOL_ACCESSOR(isAcceleratorPointerTagLiveRange)
 208   MOCK_SYMBOL_ACCESSOR(isAcceleratorStubFunction)
 209   MOCK_SYMBOL_ACCESSOR(isAggregated)
 210   MOCK_SYMBOL_ACCESSOR(isIntroVirtualFunction)
 211   MOCK_SYMBOL_ACCESSOR(isCVTCIL)
 212   MOCK_SYMBOL_ACCESSOR(isConstructorVirtualBase)
 213   MOCK_SYMBOL_ACCESSOR(isCxxReturnUdt)
 214   MOCK_SYMBOL_ACCESSOR(isDataAligned)
 215   MOCK_SYMBOL_ACCESSOR(isHLSLData)
 216   MOCK_SYMBOL_ACCESSOR(isHotpatchable)
 217   MOCK_SYMBOL_ACCESSOR(isIndirectVirtualBaseClass)
 218   MOCK_SYMBOL_ACCESSOR(isInterfaceUdt)
 219   MOCK_SYMBOL_ACCESSOR(isIntrinsic)
 220   MOCK_SYMBOL_ACCESSOR(isLTCG)
 221   MOCK_SYMBOL_ACCESSOR(isLocationControlFlowDependent)
 222   MOCK_SYMBOL_ACCESSOR(isMSILNetmodule)
 223   MOCK_SYMBOL_ACCESSOR(isMatrixRowMajor)
 224   MOCK_SYMBOL_ACCESSOR(isManagedCode)
 225   MOCK_SYMBOL_ACCESSOR(isMSILCode)
 226   MOCK_SYMBOL_ACCESSOR(isMultipleInheritance)
 227   MOCK_SYMBOL_ACCESSOR(isNaked)
 228   MOCK_SYMBOL_ACCESSOR(isNested)
 229   MOCK_SYMBOL_ACCESSOR(isOptimizedAway)
 230   MOCK_SYMBOL_ACCESSOR(isPacked)
 231   MOCK_SYMBOL_ACCESSOR(isPointerBasedOnSymbolValue)
 232   MOCK_SYMBOL_ACCESSOR(isPointerToDataMember)
 233   MOCK_SYMBOL_ACCESSOR(isPointerToMemberFunction)
 234   MOCK_SYMBOL_ACCESSOR(isPureVirtual)
 235   MOCK_SYMBOL_ACCESSOR(isRValueReference)
 236   MOCK_SYMBOL_ACCESSOR(isRefUdt)
 237   MOCK_SYMBOL_ACCESSOR(isReference)
 238   MOCK_SYMBOL_ACCESSOR(isRestrictedType)
 239   MOCK_SYMBOL_ACCESSOR(isReturnValue)
 240   MOCK_SYMBOL_ACCESSOR(isSafeBuffers)
 241   MOCK_SYMBOL_ACCESSOR(isScoped)
 242   MOCK_SYMBOL_ACCESSOR(isSdl)
 243   MOCK_SYMBOL_ACCESSOR(isSingleInheritance)
 244   MOCK_SYMBOL_ACCESSOR(isSplitted)
 245   MOCK_SYMBOL_ACCESSOR(isStatic)
 246   MOCK_SYMBOL_ACCESSOR(hasPrivateSymbols)
 247   MOCK_SYMBOL_ACCESSOR(isUnalignedType)
 248   MOCK_SYMBOL_ACCESSOR(isUnreached)
 249   MOCK_SYMBOL_ACCESSOR(isValueUdt)
 250   MOCK_SYMBOL_ACCESSOR(isVirtual)
 251   MOCK_SYMBOL_ACCESSOR(isVirtualBaseClass)
 252   MOCK_SYMBOL_ACCESSOR(isVirtualInheritance)
 253   MOCK_SYMBOL_ACCESSOR(isVolatileType)
 254
 255 private:
 256   PDB_SymType Type;
 257 };
 258
 259 class PDBApiTest : public testing::Test {
 260 public:
 261   std::unordered_map<PDB_SymType, std::unique_ptr<PDBSymbol>> SymbolMap;
 262
 263   void SetUp() override {
 264     InsertItemWithTag(PDB_SymType::None);
 265     InsertItemWithTag(PDB_SymType::Exe);
 266     InsertItemWithTag(PDB_SymType::Compiland);
 267     InsertItemWithTag(PDB_SymType::CompilandDetails);
 268     InsertItemWithTag(PDB_SymType::CompilandEnv);
 269     InsertItemWithTag(PDB_SymType::Function);
 270     InsertItemWithTag(PDB_SymType::Block);
 271     InsertItemWithTag(PDB_SymType::Data);
 272     InsertItemWithTag(PDB_SymType::Annotation);
 273     InsertItemWithTag(PDB_SymType::Label);
 274     InsertItemWithTag(PDB_SymType::PublicSymbol);
 275     InsertItemWithTag(PDB_SymType::UDT);
 276     InsertItemWithTag(PDB_SymType::Enum);
 277     InsertItemWithTag(PDB_SymType::FunctionSig);
 278     InsertItemWithTag(PDB_SymType::PointerType);
 279     InsertItemWithTag(PDB_SymType::ArrayType);
 280     InsertItemWithTag(PDB_SymType::BuiltinType);
 281     InsertItemWithTag(PDB_SymType::Typedef);
 282     InsertItemWithTag(PDB_SymType::BaseClass);
 283     InsertItemWithTag(PDB_SymType::Friend);
 284     InsertItemWithTag(PDB_SymType::FunctionArg);
 285     InsertItemWithTag(PDB_SymType::FuncDebugStart);
 286     InsertItemWithTag(PDB_SymType::FuncDebugEnd);
 287     InsertItemWithTag(PDB_SymType::UsingNamespace);
 288     InsertItemWithTag(PDB_SymType::VTableShape);
 289     InsertItemWithTag(PDB_SymType::VTable);
 290     InsertItemWithTag(PDB_SymType::Custom);
 291     InsertItemWithTag(PDB_SymType::Thunk);
 292     InsertItemWithTag(PDB_SymType::CustomType);
 293     InsertItemWithTag(PDB_SymType::ManagedType);
 294     InsertItemWithTag(PDB_SymType::Dimension);
 295     InsertItemWithTag(PDB_SymType::Max);
 296   }
 297
 298 private:
 299   void InsertItemWithTag(PDB_SymType Tag) {
 300     auto RawSymbol = std::unique_ptr<IPDBRawSymbol>(new MockRawSymbol(Tag));
 301     auto Symbol = PDBSymbol::create(std::move(RawSymbol));
 302     SymbolMap.insert(std::make_pair(Tag, std::move(Symbol)));
 303   }
 304
 305 public:
 306   template <class ExpectedType> void VerifyDyncast(PDB_SymType Tag) {
 307     for (auto item = SymbolMap.begin(); item != SymbolMap.end(); ++item) {
 308       EXPECT_EQ(item->first == Tag, llvm::isa<ExpectedType>(*item->second));
 309     }
 310   }
 311
 312   void VerifyUnknownDyncasts() {
 313     for (auto item = SymbolMap.begin(); item != SymbolMap.end(); ++item) {
 314       bool should_match = false;
 315       if (item->first == PDB_SymType::None || item->first >= PDB_SymType::Max)
 316         should_match = true;
 317
 318       EXPECT_EQ(should_match, llvm::isa<PDBSymbolUnknown>(*item->second));
 319     }
 320   }
 321 };
 322
 323 TEST_F(PDBApiTest, Dyncast) {
 324
 325   // Most of the types have a one-to-one mapping between Tag and concrete type.
 326   VerifyDyncast<PDBSymbolExe>(PDB_SymType::Exe);
 327   VerifyDyncast<PDBSymbolCompiland>(PDB_SymType::Compiland);
 328   VerifyDyncast<PDBSymbolCompilandDetails>(PDB_SymType::CompilandDetails);
 329   VerifyDyncast<PDBSymbolCompilandEnv>(PDB_SymType::CompilandEnv);
 330   VerifyDyncast<PDBSymbolFunc>(PDB_SymType::Function);
 331   VerifyDyncast<PDBSymbolBlock>(PDB_SymType::Block);
 332   VerifyDyncast<PDBSymbolData>(PDB_SymType::Data);
 333   VerifyDyncast<PDBSymbolAnnotation>(PDB_SymType::Annotation);
 334   VerifyDyncast<PDBSymbolLabel>(PDB_SymType::Label);
 335   VerifyDyncast<PDBSymbolPublicSymbol>(PDB_SymType::PublicSymbol);
 336   VerifyDyncast<PDBSymbolTypeUDT>(PDB_SymType::UDT);
 337   VerifyDyncast<PDBSymbolTypeEnum>(PDB_SymType::Enum);
 338   VerifyDyncast<PDBSymbolTypeFunctionSig>(PDB_SymType::FunctionSig);
 339   VerifyDyncast<PDBSymbolTypePointer>(PDB_SymType::PointerType);
 340   VerifyDyncast<PDBSymbolTypeArray>(PDB_SymType::ArrayType);
 341   VerifyDyncast<PDBSymbolTypeBuiltin>(PDB_SymType::BuiltinType);
 342   VerifyDyncast<PDBSymbolTypeTypedef>(PDB_SymType::Typedef);
 343   VerifyDyncast<PDBSymbolTypeBaseClass>(PDB_SymType::BaseClass);
 344   VerifyDyncast<PDBSymbolTypeFriend>(PDB_SymType::Friend);
 345   VerifyDyncast<PDBSymbolTypeFunctionArg>(PDB_SymType::FunctionArg);
 346   VerifyDyncast<PDBSymbolFuncDebugStart>(PDB_SymType::FuncDebugStart);
 347   VerifyDyncast<PDBSymbolFuncDebugEnd>(PDB_SymType::FuncDebugEnd);
 348   VerifyDyncast<PDBSymbolUsingNamespace>(PDB_SymType::UsingNamespace);
 349   VerifyDyncast<PDBSymbolTypeVTableShape>(PDB_SymType::VTableShape);
 350   VerifyDyncast<PDBSymbolTypeVTable>(PDB_SymType::VTable);
 351   VerifyDyncast<PDBSymbolCustom>(PDB_SymType::Custom);
 352   VerifyDyncast<PDBSymbolThunk>(PDB_SymType::Thunk);
 353   VerifyDyncast<PDBSymbolTypeCustom>(PDB_SymType::CustomType);
 354   VerifyDyncast<PDBSymbolTypeManaged>(PDB_SymType::ManagedType);
 355   VerifyDyncast<PDBSymbolTypeDimension>(PDB_SymType::Dimension);
 356
 357   VerifyUnknownDyncasts();
 358 }
 359
 360 } // end anonymous namespace