TraverseDecl might deserialize

Author: vgvassilev

core/dictgen/src/Scanner.cxx

@@ -57,8 +57,6 @@ inline static bool IsElementPresent(const std::vector<const T*> &v, T *el){
 using namespace ROOT;
 using namespace clang;
 
-extern cling::Interpreter *gInterp;
-
 const char* RScanner::fgClangDeclKey = "ClangDecl"; // property key used for connection with Clang objects
 const char* RScanner::fgClangFuncKey = "ClangFunc"; // property key for demangled names
 
@@ -1054,6 +1052,8 @@ void RScanner::Scan(const clang::ASTContext &C)
       std::cout<<"File name detected"<<std::endl;
    }
 
+   cling::Interpreter::PushTransactionRAII RAII(const_cast<cling::Interpreter*>(&fInterpreter));
+
    if (fScanType == EScanType::kTwoPasses)
       TraverseDecl(C.getTranslationUnitDecl());