Пример #1
0
/// Returns true if the given C++ class is a container.
///
/// Our heuristic for this is whether it contains a method named 'begin()' or a
/// nested type named 'iterator'.
static bool isContainerClass(const ASTContext &Ctx, const CXXRecordDecl *RD) {
  // Don't record any path information.
  CXXBasePaths Paths(false, false, false);

  const IdentifierInfo &BeginII = Ctx.Idents.get("begin");
  DeclarationName BeginName = Ctx.DeclarationNames.getIdentifier(&BeginII);
  DeclContext::lookup_const_result BeginDecls = RD->lookup(BeginName);
  if (!BeginDecls.empty())
    return true;
  if (RD->lookupInBases(&CXXRecordDecl::FindOrdinaryMember,
                        BeginName.getAsOpaquePtr(),
                        Paths))
    return true;
  
  const IdentifierInfo &IterII = Ctx.Idents.get("iterator");
  DeclarationName IteratorName = Ctx.DeclarationNames.getIdentifier(&IterII);
  DeclContext::lookup_const_result IterDecls = RD->lookup(IteratorName);
  if (!IterDecls.empty())
    return true;
  if (RD->lookupInBases(&CXXRecordDecl::FindOrdinaryMember,
                        IteratorName.getAsOpaquePtr(),
                        Paths))
    return true;

  return false;
}
Пример #2
0
    bool GetFields( RecordDecl * rd, Obj * entries) {
     
        //check the fields of this struct, if any one of them is not understandable, then this struct becomes 'opaque'
        //that is, we insert the type, and link it to its llvm type, so it can be used in terra code
        //but none of its fields are exposed (since we don't understand the layout)
        bool opaque = false;
        for(RecordDecl::field_iterator it = rd->field_begin(), end = rd->field_end(); it != end; ++it) {
            if(it->isBitField() || it->isAnonymousStructOrUnion() || !it->getDeclName()) {
                opaque = true;
                continue;
            }
            DeclarationName declname = it->getDeclName();
            std::string declstr = declname.getAsString();
            QualType FT = it->getType();
            Obj fobj;
            if(!GetType(FT,&fobj)) {
                opaque = true;
                continue;
            }
            lua_newtable(L);
            fobj.push();
            lua_setfield(L,-2,"type");
            lua_pushstring(L,declstr.c_str());
            lua_setfield(L,-2,"field");
            entries->addentry();
        }
        return !opaque;

    }
Пример #3
0
    bool TraverseFunctionDecl(FunctionDecl *f) {
        // Function name
        DeclarationName DeclName = f->getNameInfo().getName();
        std::string FuncName = DeclName.getAsString();
        const FunctionType * fntyp = f->getType()->getAs<FunctionType>();

        if(!fntyp)
            return true;

        if(f->getStorageClass() == clang::SC_Static) {
            ImportError("cannot import static functions.");
            SetErrorReport(FuncName.c_str());
            return true;
        }

        Obj typ;
        if(!GetFuncType(fntyp,&typ)) {
            SetErrorReport(FuncName.c_str());
            return true;
        }
        std::string InternalName = FuncName;
        AsmLabelAttr * asmlabel = f->getAttr<AsmLabelAttr>();
        if(asmlabel) {
            InternalName = asmlabel->getLabel();
#ifndef __linux__
            //In OSX and Windows LLVM mangles assembler labels by adding a '\01' prefix
            InternalName.insert(InternalName.begin(), '\01');
#endif
        }
        CreateFunction(FuncName,InternalName,&typ);

        KeepFunctionLive(f);//make sure this function is live in codegen by creating a dummy reference to it (void) is to suppress unused warnings

        return true;
    }
Пример #4
0
    bool VisitFunctionDecl(FunctionDecl *f) {
        // Only function definitions (with bodies), not declarations.
        if (f->hasBody()) {
            Stmt *FuncBody = f->getBody();

            // Type name as string
            QualType QT = f->getResultType();
            string TypeStr = QT.getAsString();

            // Function name
            DeclarationName DeclName = f->getNameInfo().getName();
            string FuncName = DeclName.getAsString();

            // Add comment before
            stringstream SSBefore;
            SSBefore << "// Begin function " << FuncName << " returning "
                     << TypeStr << "\n";
            SourceLocation ST = f->getSourceRange().getBegin();
            TheRewriter.InsertText(ST, SSBefore.str(), true, true);

            // And after
            stringstream SSAfter;
            SSAfter << "\n// End function " << FuncName << "\n";
            ST = FuncBody->getLocEnd().getLocWithOffset(1);
            TheRewriter.InsertText(ST, SSAfter.str(), true, true);
        }

        return true;
    }
Пример #5
0
void RemoveUnusedFunction::handleOneCXXDependentScopeMemberExpr(
       const FunctionDecl *CurrentFD,
       const CXXDependentScopeMemberExpr *E)
{
  if (E->isImplicitAccess())
    return;
  DeclarationName DName = E->getMember();
  DeclarationName::NameKind K = DName.getNameKind();
  if ((K != DeclarationName::CXXOperatorName) &&
      (K != DeclarationName::Identifier))
    return;
  const Expr *Base = E->getBase()->IgnoreParenCasts();
  const FunctionDecl *FD = NULL;
  if (dyn_cast<CXXThisExpr>(Base)) {
    TransAssert(CurrentFD && "NULL CurrentFD");
    const DeclContext *Ctx = CurrentFD->getLookupParent();
    TransAssert(Ctx && "Bad DeclContext!");
    DeclContextSet VisitedCtxs;
    FD = lookupFunctionDecl(DName, Ctx, VisitedCtxs);
    // we may not get FD in cases where we have this->m_field
    if (FD)
      addOneReferencedFunction(FD);
    return;
  }
}
Пример #6
0
/// AddDecl - Link the decl to its shadowed decl chain.
void IdentifierResolver::AddDecl(NamedDecl *D) {
  DeclarationName Name = D->getDeclName();
  if (IdentifierInfo *II = Name.getAsIdentifierInfo()) {
    updatingIdentifier(*II);
//@@
    if (II->isMetaGenerated()) return;
//@@
  }

  void *Ptr = Name.getFETokenInfo<void>();

  if (!Ptr) {
    Name.setFETokenInfo(D);
    return;
  }

  IdDeclInfo *IDI;

  if (isDeclPtr(Ptr)) {
    Name.setFETokenInfo(nullptr);
    IDI = &(*IdDeclInfos)[Name];
    NamedDecl *PrevD = static_cast<NamedDecl*>(Ptr);
    IDI->AddDecl(PrevD);
  } else
    IDI = toIdDeclInfo(Ptr);

  IDI->AddDecl(D);
}
Пример #7
0
bool operator<(DeclarationName LHS, DeclarationName RHS) {
  if (IdentifierInfo *LhsId = LHS.getAsIdentifierInfo())
    if (IdentifierInfo *RhsId = RHS.getAsIdentifierInfo())
      return strcmp(LhsId->getName(), RhsId->getName()) < 0;

  return LHS.getAsOpaqueInteger() < RHS.getAsOpaqueInteger();
}
Пример #8
0
/// \brief Retrieve the name that should be used to order a result.
///
/// If the name needs to be constructed as a string, that string will be
/// saved into Saved and the returned StringRef will refer to it.
static StringRef getOrderedName(const CodeCompletionResult &R,
                                    std::string &Saved) {
  switch (R.Kind) {
    case CodeCompletionResult::RK_Keyword:
      return R.Keyword;
      
    case CodeCompletionResult::RK_Pattern:
      return R.Pattern->getTypedText();
      
    case CodeCompletionResult::RK_Macro:
      return R.Macro->getName();
      
    case CodeCompletionResult::RK_Declaration:
      // Handle declarations below.
      break;
  }
  
  DeclarationName Name = R.Declaration->getDeclName();
  
  // If the name is a simple identifier (by far the common case), or a
  // zero-argument selector, just return a reference to that identifier.
  if (IdentifierInfo *Id = Name.getAsIdentifierInfo())
    return Id->getName();
  if (Name.isObjCZeroArgSelector())
    if (IdentifierInfo *Id
        = Name.getObjCSelector().getIdentifierInfoForSlot(0))
      return Id->getName();
  
  Saved = Name.getAsString();
  return Saved;
}
Пример #9
0
  bool DynamicIDHandler::LookupUnqualified(LookupResult& R, Scope* S) {

    if (!IsDynamicLookup(R, S))
      return false;

    if (Callbacks && Callbacks->isEnabled()) {
      return Callbacks->LookupObject(R, S);
    }

    DeclarationName Name = R.getLookupName();
    IdentifierInfo* II = Name.getAsIdentifierInfo();
    SourceLocation Loc = R.getNameLoc();
    VarDecl* Result = VarDecl::Create(m_Context,
                                      R.getSema().getFunctionLevelDeclContext(),
                                      Loc,
                                      Loc,
                                      II,
                                      m_Context.DependentTy,
                                      /*TypeSourceInfo*/0,
                                      SC_None,
                                      SC_None);
    if (Result) {
      R.addDecl(Result);
      // Say that we can handle the situation. Clang should try to recover
      return true;
    }
    // We cannot handle the situation. Give up
    return false;
  }
Пример #10
0
void ODRHash::AddDeclarationName(DeclarationName Name) {
  // Index all DeclarationName and use index numbers to refer to them.
  auto Result = DeclNameMap.insert(std::make_pair(Name, DeclNameMap.size()));
  ID.AddInteger(Result.first->second);
  if (!Result.second) {
    // If found in map, the the DeclarationName has previously been processed.
    return;
  }

  // First time processing each DeclarationName, also process its details.
  AddBoolean(Name.isEmpty());
  if (Name.isEmpty())
    return;

  auto Kind = Name.getNameKind();
  ID.AddInteger(Kind);
  switch (Kind) {
  case DeclarationName::Identifier:
    AddIdentifierInfo(Name.getAsIdentifierInfo());
    break;
  case DeclarationName::ObjCZeroArgSelector:
  case DeclarationName::ObjCOneArgSelector:
  case DeclarationName::ObjCMultiArgSelector: {
    Selector S = Name.getObjCSelector();
    AddBoolean(S.isNull());
    AddBoolean(S.isKeywordSelector());
    AddBoolean(S.isUnarySelector());
    unsigned NumArgs = S.getNumArgs();
    for (unsigned i = 0; i < NumArgs; ++i) {
      AddIdentifierInfo(S.getIdentifierInfoForSlot(i));
    }
    break;
  }
  case DeclarationName::CXXConstructorName:
  case DeclarationName::CXXDestructorName:
    AddQualType(Name.getCXXNameType());
    break;
  case DeclarationName::CXXOperatorName:
    ID.AddInteger(Name.getCXXOverloadedOperator());
    break;
  case DeclarationName::CXXLiteralOperatorName:
    AddIdentifierInfo(Name.getCXXLiteralIdentifier());
    break;
  case DeclarationName::CXXConversionFunctionName:
    AddQualType(Name.getCXXNameType());
    break;
  case DeclarationName::CXXUsingDirective:
    break;
  case DeclarationName::CXXDeductionGuideName: {
    auto *Template = Name.getCXXDeductionGuideTemplate();
    AddBoolean(Template);
    if (Template) {
      AddDecl(Template);
    }
  }
  }
}
Пример #11
0
/// Returns true if the given C++ class contains a member with the given name.
static bool hasMember(const ASTContext &Ctx, const CXXRecordDecl *RD,
                      StringRef Name) {
  const IdentifierInfo &II = Ctx.Idents.get(Name);
  DeclarationName DeclName = Ctx.DeclarationNames.getIdentifier(&II);
  if (!RD->lookup(DeclName).empty())
    return true;

  CXXBasePaths Paths(false, false, false);
  if (RD->lookupInBases(&CXXRecordDecl::FindOrdinaryMember,
                        DeclName.getAsOpaquePtr(),
                        Paths))
    return true;

  return false;
}
/// RemoveDecl - Unlink the decl from its shadowed decl chain.
/// The decl must already be part of the decl chain.
void IdentifierResolver::RemoveDecl(NamedDecl *D) {
    assert(D && "null param passed");
    DeclarationName Name = D->getDeclName();
    void *Ptr = Name.getFETokenInfo<void>();

    assert(Ptr && "Didn't find this decl on its identifier's chain!");

    if (isDeclPtr(Ptr)) {
        assert(D == Ptr && "Didn't find this decl on its identifier's chain!");
        Name.setFETokenInfo(NULL);
        return;
    }

    return toIdDeclInfo(Ptr)->RemoveDecl(D);
}
Пример #13
0
void ODRHash::AddDeclarationName(DeclarationName Name) {
  AddBoolean(Name.isEmpty());
  if (Name.isEmpty())
    return;

  auto Kind = Name.getNameKind();
  ID.AddInteger(Kind);
  switch (Kind) {
  case DeclarationName::Identifier:
    AddIdentifierInfo(Name.getAsIdentifierInfo());
    break;
  case DeclarationName::ObjCZeroArgSelector:
  case DeclarationName::ObjCOneArgSelector:
  case DeclarationName::ObjCMultiArgSelector: {
    Selector S = Name.getObjCSelector();
    AddBoolean(S.isNull());
    AddBoolean(S.isKeywordSelector());
    AddBoolean(S.isUnarySelector());
    unsigned NumArgs = S.getNumArgs();
    for (unsigned i = 0; i < NumArgs; ++i) {
      AddIdentifierInfo(S.getIdentifierInfoForSlot(i));
    }
    break;
  }
  case DeclarationName::CXXConstructorName:
  case DeclarationName::CXXDestructorName:
    AddQualType(Name.getCXXNameType());
    break;
  case DeclarationName::CXXOperatorName:
    ID.AddInteger(Name.getCXXOverloadedOperator());
    break;
  case DeclarationName::CXXLiteralOperatorName:
    AddIdentifierInfo(Name.getCXXLiteralIdentifier());
    break;
  case DeclarationName::CXXConversionFunctionName:
    AddQualType(Name.getCXXNameType());
    break;
  case DeclarationName::CXXUsingDirective:
    break;
  case DeclarationName::CXXDeductionGuideName: {
    auto *Template = Name.getCXXDeductionGuideTemplate();
    AddBoolean(Template);
    if (Template) {
      AddDecl(Template);
    }
  }
  }
}
Пример #14
0
DeclarationNameLoc::DeclarationNameLoc(DeclarationName Name) {
  switch (Name.getNameKind()) {
  case DeclarationName::Identifier:
    break;
  case DeclarationName::CXXConstructorName:
  case DeclarationName::CXXDestructorName:
  case DeclarationName::CXXConversionFunctionName:
    NamedType.TInfo = nullptr;
    break;
  case DeclarationName::CXXOperatorName:
    CXXOperatorName.BeginOpNameLoc = SourceLocation().getRawEncoding();
    CXXOperatorName.EndOpNameLoc = SourceLocation().getRawEncoding();
    break;
  case DeclarationName::CXXLiteralOperatorName:
    CXXLiteralOperatorName.OpNameLoc = SourceLocation().getRawEncoding();
    break;
  case DeclarationName::ObjCZeroArgSelector:
  case DeclarationName::ObjCOneArgSelector:
  case DeclarationName::ObjCMultiArgSelector:
    // FIXME: ?
    break;
  case DeclarationName::CXXUsingDirective:
    break;
  }
}
Пример #15
0
bool index::printSymbolName(const Decl *D, const LangOptions &LO,
                            raw_ostream &OS) {
  if (auto *ND = dyn_cast<NamedDecl>(D)) {
    PrintingPolicy Policy(LO);
    // Forward references can have different template argument names. Suppress
    // the template argument names in constructors to make their name more
    // stable.
    Policy.SuppressTemplateArgsInCXXConstructors = true;
    DeclarationName DeclName = ND->getDeclName();
    if (DeclName.isEmpty())
      return true;
    DeclName.print(OS, Policy);
    return false;
  } else {
    return true;
  }
}
  bool SymbolResolverCallback::LookupObject(LookupResult& R, Scope* S) {
    if (!ShouldResolveAtRuntime(R, S))
      return false;

    if (m_IsRuntime) {
      // We are currently parsing an EvaluateT() expression
      if (!m_Resolve)
        return false;

      // Only for demo resolve all unknown objects to cling::test::Tester
      if (!m_TesterDecl) {
        clang::Sema& SemaR = m_Interpreter->getSema();
        clang::NamespaceDecl* NSD = utils::Lookup::Namespace(&SemaR, "cling");
        NSD = utils::Lookup::Namespace(&SemaR, "test", NSD);
        m_TesterDecl = utils::Lookup::Named(&SemaR, "Tester", NSD);
      }
      assert (m_TesterDecl && "Tester not found!");
      R.addDecl(m_TesterDecl);
      return true; // Tell clang to continue.
    }

    // We are currently NOT parsing an EvaluateT() expression.
    // Escape the expression into an EvaluateT() expression.
    ASTContext& C = R.getSema().getASTContext();
    DeclContext* DC = 0;
    // For DeclContext-less scopes like if (dyn_expr) {}
    while (!DC) {
      DC = static_cast<DeclContext*>(S->getEntity());
      S = S->getParent();
    }
    DeclarationName Name = R.getLookupName();
    IdentifierInfo* II = Name.getAsIdentifierInfo();
    SourceLocation Loc = R.getNameLoc();
    VarDecl* Res = VarDecl::Create(C, DC, Loc, Loc, II, C.DependentTy,
        /*TypeSourceInfo*/0, SC_None);

    // Annotate the decl to give a hint in cling. FIXME: Current implementation
    // is a gross hack, because TClingCallbacks shouldn't know about
    // EvaluateTSynthesizer at all!
    SourceRange invalidRange;
    Res->addAttr(new (C) AnnotateAttr(invalidRange, C, "__ResolveAtRuntime", 0));
    R.addDecl(Res);
    DC->addDecl(Res);
    // Say that we can handle the situation. Clang should try to recover
    return true;
  }
Пример #17
0
    bool VisitFunctionDecl(FunctionDecl *f) {
        // Only function definitions (with bodies), not declarations.
            Stmt *FuncBody = f->getBody();
            // Type name as string
            QualType QT = f->getResultType();
            string TypeStr = QT.getAsString();
            // Function name
            DeclarationName DeclName = f->getNameInfo().getName();
            string FuncName = DeclName.getAsString();
            func_info fi;
            fi.name = FuncName;
            fi.return_type = TypeStr;
            unsigned nbp = f->getNumParams();
            for (int i = 0; i < nbp; ++i) {
                //getTypeSourceInfo()->getType() and getOriginalType() is the final type. e.g. for size_t, the result may be unsigned int, but we need only size_t
                //fi.argv.push_back(f->getParamDecl(i)->getTypeSourceInfo()->getType().getAsString());//->getOriginalType().getAsString());
/*
                TypeLoc tl = f->getParamDecl(i)->getTypeSourceInfo()->getTypeLoc();
                SourceLocation sl0 = tl.getBeginLoc();
                SourceLocation sl1 = tl.getEndLoc();
                const char* ptr0 = TheRewriter.getSourceMgr().getCharacterData(sl0);
                const char* ptr1 = TheRewriter.getSourceMgr().getCharacterData(sl1);
*/
                fi.argv.push_back(trim(decl2str_without_var(f->getParamDecl(i), &TheRewriter.getSourceMgr())));
            }
            mFuncInfo.push_back(fi);
#if 0
            if (f->hasBody()) {
                // Add comment before
                stringstream SSBefore;
                SSBefore << "// Begin function " << FuncName << " returning "
                         << TypeStr << "\n";
                SourceLocation ST = f->getSourceRange().getBegin();
                TheRewriter.InsertText(ST, SSBefore.str(), true, true);

                // And after
                stringstream SSAfter;
                SSAfter << "\n// End function " << FuncName << "\n";
                ST = FuncBody->getLocEnd().getLocWithOffset(1);
                TheRewriter.InsertText(ST, SSAfter.str(), true, true);
            }
#endif
        return true;
    }
bool IdentifierResolver::ReplaceDecl(NamedDecl *Old, NamedDecl *New) {
    assert(Old->getDeclName() == New->getDeclName() &&
           "Cannot replace a decl with another decl of a different name");

    DeclarationName Name = Old->getDeclName();
    void *Ptr = Name.getFETokenInfo<void>();

    if (!Ptr)
        return false;

    if (isDeclPtr(Ptr)) {
        if (Ptr == Old) {
            Name.setFETokenInfo(New);
            return true;
        }
        return false;
    }

    return toIdDeclInfo(Ptr)->ReplaceDecl(Old, New);
}
Пример #19
0
void IdentifierResolver::InsertDeclAfter(iterator Pos, NamedDecl *D) {
  DeclarationName Name = D->getDeclName();
  if (IdentifierInfo *II = Name.getAsIdentifierInfo())
    updatingIdentifier(*II);
  
  void *Ptr = Name.getFETokenInfo<void>();
  
  if (!Ptr) {
    AddDecl(D);
    return;
  }

  if (isDeclPtr(Ptr)) {
    // We only have a single declaration: insert before or after it,
    // as appropriate.
    if (Pos == iterator()) {
      // Add the new declaration before the existing declaration.
      NamedDecl *PrevD = static_cast<NamedDecl*>(Ptr);
      RemoveDecl(PrevD);
      AddDecl(D);
      AddDecl(PrevD);
    } else {
      // Add new declaration after the existing declaration.
      AddDecl(D);
    }

    return;
  }

  if (IdentifierInfo *II = Name.getAsIdentifierInfo())
    if (II->isFromAST())
      II->setChangedSinceDeserialization();
  
  // General case: insert the declaration at the appropriate point in the 
  // list, which already has at least two elements.
  IdDeclInfo *IDI = toIdDeclInfo(Ptr);
  if (Pos.isIterator()) {
    IDI->InsertDecl(Pos.getIterator() + 1, D);
  } else
    IDI->InsertDecl(IDI->decls_begin(), D);
}
/// AddDecl - Link the decl to its shadowed decl chain.
void IdentifierResolver::AddDecl(NamedDecl *D) {
    DeclarationName Name = D->getDeclName();
    void *Ptr = Name.getFETokenInfo<void>();

    if (!Ptr) {
        Name.setFETokenInfo(D);
        return;
    }

    IdDeclInfo *IDI;

    if (isDeclPtr(Ptr)) {
        Name.setFETokenInfo(NULL);
        IDI = &(*IdDeclInfos)[Name];
        NamedDecl *PrevD = static_cast<NamedDecl*>(Ptr);
        IDI->AddDecl(PrevD);
    } else
        IDI = toIdDeclInfo(Ptr);

    IDI->AddDecl(D);
}
Пример #21
0
/// AddShadowedDecl - Link the decl to its shadowed decl chain putting it
/// after the decl that the iterator points to, thus the 'Shadow' decl will be
/// encountered before the 'D' decl.
void IdentifierResolver::AddShadowedDecl(NamedDecl *D, NamedDecl *Shadow) {
  assert(D->getDeclName() == Shadow->getDeclName() && "Different ids!");

  DeclarationName Name = D->getDeclName();
  void *Ptr = Name.getFETokenInfo<void>();
  assert(Ptr && "No decl from Ptr ?");

  IdDeclInfo *IDI;

  if (isDeclPtr(Ptr)) {
    Name.setFETokenInfo(NULL);
    IDI = &(*IdDeclInfos)[Name];
    NamedDecl *PrevD = static_cast<NamedDecl*>(Ptr);
    assert(PrevD == Shadow && "Invalid shadow decl ?");
    IDI->AddDecl(D);
    IDI->AddDecl(PrevD);
    return;
  }

  IDI = toIdDeclInfo(Ptr);
  IDI->AddShadowed(D, Shadow);
}
Пример #22
0
/// RemoveDecl - Unlink the decl from its shadowed decl chain.
/// The decl must already be part of the decl chain.
void IdentifierResolver::RemoveDecl(NamedDecl *D) {
  assert(D && "null param passed");
  DeclarationName Name = D->getDeclName();
  if (IdentifierInfo *II = Name.getAsIdentifierInfo()) {
    updatingIdentifier(*II);
//@@
    if (II->isMetaGenerated()) return;
//@@
  }

  void *Ptr = Name.getFETokenInfo<void>();

  assert(Ptr && "Didn't find this decl on its identifier's chain!");

  if (isDeclPtr(Ptr)) {
    assert(D == Ptr && "Didn't find this decl on its identifier's chain!");
    Name.setFETokenInfo(nullptr);
    return;
  }

  return toIdDeclInfo(Ptr)->RemoveDecl(D);
}
Пример #23
0
    ///\brief This is the most important function of the class ASTImportSource
    /// since from here initiates the lookup and import part of the missing
    /// Decl(s) (Contexts).
    ///
    bool ASTImportSource::FindExternalVisibleDeclsByName(
      const DeclContext *childCurrentDeclContext, DeclarationName childDeclName) {

      assert(childCurrentDeclContext->hasExternalVisibleStorage() &&
             "DeclContext has no visible decls in storage");

      //Check if we have already found this declaration Name before
      DeclarationName parentDeclName;
      std::map<clang::DeclarationName,
        clang::DeclarationName>::iterator II = m_DeclName_map.find(childDeclName);
      if (II != m_DeclName_map.end()) {
        parentDeclName = II->second;
      } else {
        // Get the identifier info from the parent interpreter
        // for this Name.
        llvm::StringRef name(childDeclName.getAsString());
        IdentifierTable &parentIdentifierTable =
          m_parent_Interp->getCI()->getASTContext().Idents;
        IdentifierInfo &parentIdentifierInfo = parentIdentifierTable.get(name);
        DeclarationName parentDeclNameTemp(&parentIdentifierInfo);
        parentDeclName = parentDeclNameTemp;
      }

      // Search in the map of the stored Decl Contexts for this
      // Decl Context.
      std::map<const clang::DeclContext *, clang::DeclContext *>::iterator I;
      if ((I = m_DeclContexts_map.find(childCurrentDeclContext))
           != m_DeclContexts_map.end()) {
        // If childCurrentDeclContext was found before and is already in the map,
        // then do the lookup using the stored pointer.
        DeclContext *parentDeclContext = I->second;

        Decl *fromDeclContext = Decl::castFromDeclContext(parentDeclContext);
        ASTContext &from_ASTContext = fromDeclContext->getASTContext();

        Decl *toDeclContext = Decl::castFromDeclContext(childCurrentDeclContext);
        ASTContext &to_ASTContext = toDeclContext->getASTContext();

        DeclContext::lookup_result lookup_result =
          parentDeclContext->lookup(parentDeclName);

        // Check if we found this Name in the parent interpreter
        if (!lookup_result.empty()) {
          // Do the import
          if (Import(lookup_result, from_ASTContext, to_ASTContext,
                     childCurrentDeclContext, childDeclName, parentDeclName))
            return true;
        }
      }
      return false;
    }
Пример #24
0
bool RewriteUtils::replaceCXXDestructorDeclName(
       const CXXDestructorDecl *DtorDecl,
       const std::string &Name)
{
  SourceLocation StartLoc = DtorDecl->getLocation();
  const char *StartBuf = SrcManager->getCharacterData(StartLoc);
  TransAssert((*StartBuf == '~') && "Invalid Destructor Location");
  // FIXME: it's quite ugly, better to use clang's Lexer
  unsigned Off = 0;
  StartBuf++;
  while (isspace(*StartBuf)) {
    StartBuf++;
    Off++;
  }

  std::string DName = DtorDecl->getNameAsString();
  DeclarationNameInfo NameInfo = DtorDecl->getNameInfo();
  DeclarationName DeclName = NameInfo.getName();
  const Type *Ty = DeclName.getCXXNameType().getTypePtr();
  size_t NameLen;
  if (Ty->getTypeClass() == Type::InjectedClassName) {
    const CXXRecordDecl *CXXRD = Ty->getAsCXXRecordDecl();
    std::string RDName = CXXRD->getNameAsString();
    NameLen = DName.find(RDName);
    TransAssert((NameLen != std::string::npos) && 
                "Cannot find RecordDecl Name!");
    NameLen += RDName.length();
  }
  else {
    NameLen = DName.length();
  }
  NameLen += Off;
 
  return !TheRewriter->ReplaceText(StartLoc,
                                   NameLen,
                                   "~" + Name);
}
Пример #25
0
// The core lookup interface.
DeclContext::lookup_result ClangASTSource::FindExternalVisibleDeclsByName(const DeclContext *DC, DeclarationName Name) {
    switch (Name.getNameKind()) {
    // Normal identifiers.
    case DeclarationName::Identifier:
      break;
            
    // Operator names.  Not important for now.
    case DeclarationName::CXXOperatorName:
    case DeclarationName::CXXLiteralOperatorName:
      return DeclContext::lookup_result();
            
    // Using directives found in this context.
    // Tell Sema we didn't find any or we'll end up getting asked a *lot*.
    case DeclarationName::CXXUsingDirective:
      return SetNoExternalVisibleDeclsForName(DC, Name);
            
    // These aren't looked up like this.
    case DeclarationName::ObjCZeroArgSelector:
    case DeclarationName::ObjCOneArgSelector:
    case DeclarationName::ObjCMultiArgSelector:
      return DeclContext::lookup_result();

    // These aren't possible in the global context.
    case DeclarationName::CXXConstructorName:
    case DeclarationName::CXXDestructorName:
    case DeclarationName::CXXConversionFunctionName:
      return DeclContext::lookup_result();
    }
    
	llvm::SmallVector<NamedDecl*, 4> Decls;
    
    NameSearchContext NSC(*this, Decls, Name, DC);
    
    DeclMap.GetDecls(NSC, Name.getAsString().c_str());
    return SetExternalVisibleDeclsForName(DC, Name, Decls);
}
Пример #26
0
void RemoveUnusedFunction::handleOneUnresolvedLookupExpr(
       const FunctionDecl *CurrentFD,
       const UnresolvedLookupExpr *E)
{
  DeclarationName DName = E->getName();
  DeclarationName::NameKind K = DName.getNameKind();
  if ((K != DeclarationName::CXXOperatorName) &&
      (K != DeclarationName::Identifier))
    return;
  const NestedNameSpecifier *NNS = E->getQualifier();
  // we fail only if UE is invoked with some qualifier or 
  // instantiation, e.g.:
  // namespace NS { template<typename T> void foo(T&) { } }
  // template<typename T> void bar(T p) { NS::foo(p); } 
  // removing foo would fail. 
  // 
  // template <typename T> void foo() { }
  // template <typename T> void bar() { foo<T>(); }
  // removing foo would faill, too
  // 
  // On the other handle, the following code is ok:
  // template<typename T> void foo(T&) { }
  // template<typename T> void bar(T p) { foo(p); } 
  const FunctionDecl *FD = NULL;
  if (NNS) {
    FD = getFunctionDeclFromSpecifier(DName, NNS);
  }
  else {
    const DeclContext *Ctx = CurrentFD->getLookupParent();
    FD = lookupFunctionDeclShallow(DName, Ctx);
  }
  
  if (!FD || FD->isReferenced())
    return;
  addOneReferencedFunction(FD);
}
Пример #27
0
bool RewriteUtils::replaceFunctionDeclName(const FunctionDecl *FD,
                                      const std::string &NameStr)
{
  // We cannot naively use FD->getNameAsString() here. 
  // For example, for a template class
  // template<typename T>
  // class SomeClass {
  // public:
  //   SomeClass() {}
  // };
  // applying getNameAsString() on SomeClass() gives us SomeClass<T>.

  DeclarationNameInfo NameInfo = FD->getNameInfo();
  DeclarationName DeclName = NameInfo.getName();
  DeclarationName::NameKind K = DeclName.getNameKind();
  TransAssert((K != DeclarationName::CXXDestructorName) &&
              "Cannot rename CXXDestructorName here!");

  std::string FDName = FD->getNameAsString();
  size_t FDNameLen = FD->getNameAsString().length();
  if (K == DeclarationName::CXXConstructorName) {
    const Type *Ty = DeclName.getCXXNameType().getTypePtr();
    if (Ty->getTypeClass() == Type::InjectedClassName) {
      const CXXRecordDecl *CXXRD = Ty->getAsCXXRecordDecl();
      std::string RDName = CXXRD->getNameAsString();
      FDNameLen = FDName.find(RDName);
      TransAssert((FDNameLen != std::string::npos) && 
                  "Cannot find RecordDecl Name!");
      FDNameLen += RDName.length();
    }
  }

  return !TheRewriter->ReplaceText(NameInfo.getLoc(),
                                   FDNameLen,
                                   NameStr);
}
Пример #28
0
/// begin - Returns an iterator for decls with name 'Name'.
IdentifierResolver::iterator
IdentifierResolver::begin(DeclarationName Name) {
  if (IdentifierInfo *II = Name.getAsIdentifierInfo())
    readingIdentifier(*II);
    
  void *Ptr = Name.getFETokenInfo<void>();
  if (!Ptr) return end();

  if (isDeclPtr(Ptr))
    return iterator(static_cast<NamedDecl*>(Ptr));

  IdDeclInfo *IDI = toIdDeclInfo(Ptr);

  IdDeclInfo::DeclsTy::iterator I = IDI->decls_end();
  if (I != IDI->decls_begin())
    return iterator(I-1);
  // No decls found.
  return end();
}
Пример #29
0
void StmtProfiler::VisitName(DeclarationName Name) {
  ID.AddPointer(Name.getAsOpaquePtr());
}
Пример #30
0
bool IdentifierResolver::tryAddTopLevelDecl(NamedDecl *D, DeclarationName Name){
  if (IdentifierInfo *II = Name.getAsIdentifierInfo())
    readingIdentifier(*II);
  
  void *Ptr = Name.getFETokenInfo<void>();
    
  if (!Ptr) {
    Name.setFETokenInfo(D);
    return true;
  }
  
  IdDeclInfo *IDI;
  
  if (isDeclPtr(Ptr)) {
    NamedDecl *PrevD = static_cast<NamedDecl*>(Ptr);
    
    switch (compareDeclarations(PrevD, D)) {
    case DMK_Different:
      break;
      
    case DMK_Ignore:
      return false;
      
    case DMK_Replace:
      Name.setFETokenInfo(D);
      return true;
    }

    Name.setFETokenInfo(nullptr);
    IDI = &(*IdDeclInfos)[Name];
    
    // If the existing declaration is not visible in translation unit scope,
    // then add the new top-level declaration first.
    if (!PrevD->getDeclContext()->getRedeclContext()->isTranslationUnit()) {
      IDI->AddDecl(D);
      IDI->AddDecl(PrevD);
    } else {
      IDI->AddDecl(PrevD);
      IDI->AddDecl(D);
    }
    return true;
  } 
  
  IDI = toIdDeclInfo(Ptr);

  // See whether this declaration is identical to any existing declarations.
  // If not, find the right place to insert it.
  for (IdDeclInfo::DeclsTy::iterator I = IDI->decls_begin(), 
                                  IEnd = IDI->decls_end();
       I != IEnd; ++I) {
    
    switch (compareDeclarations(*I, D)) {
    case DMK_Different:
      break;
      
    case DMK_Ignore:
      return false;
      
    case DMK_Replace:
      *I = D;
      return true;
    }
    
    if (!(*I)->getDeclContext()->getRedeclContext()->isTranslationUnit()) {
      // We've found a declaration that is not visible from the translation
      // unit (it's in an inner scope). Insert our declaration here.
      IDI->InsertDecl(I, D);
      return true;
    }
  }
  
  // Add the declaration to the end.
  IDI->AddDecl(D);
  return true;
}