objistrasn.cpp

ncbi源码

CObjectIStream::EPointerType CObjectIStreamAsn::ReadPointerType(void)
{
    switch ( PeekChar(true) ) {
    case 'N':
        if ( m_Input.PeekCharNoEOF(1) == 'U' &&
             m_Input.PeekCharNoEOF(2) == 'L' &&
             m_Input.PeekCharNoEOF(3) == 'L' &&
             !IdChar(m_Input.PeekCharNoEOF(4)) ) {
            // "NULL"
            m_Input.SkipChars(4);
            return eNullPointer;
        }
        break;
    case '@':
        m_Input.SkipChar();
        return eObjectPointer;
    case ':':
        m_Input.SkipChar();
        return eOtherPointer;
    default:
        break;
    }
    return eThisPointer;
}

CObjectIStream::TObjectIndex CObjectIStreamAsn::ReadObjectPointer(void)
{
    if ( sizeof(TObjectIndex) == sizeof(Int4) )
        return ReadInt4();
    else if ( sizeof(TObjectIndex) == sizeof(Int8) )
        return TObjectIndex(ReadInt8());
    else
        ThrowError(fIllegalCall, "invalid size of TObjectIndex:"
            " must be either sizeof(Int4) or sizeof(Int8)");
    return 0;
}

string CObjectIStreamAsn::ReadOtherPointer(void)
{
    return ReadTypeId(SkipWhiteSpace());
}

END_NCBI_SCOPE

/* ---------------------------------------------------------------------------
* $Log: objistrasn.cpp,v $
* Revision 1000.3  2004/06/01 19:40:57  gouriano
* PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.92
*
* Revision 1.92  2004/05/17 21:03:03  gorelenk
* Added include of PCH ncbi_pch.hpp
*
* Revision 1.91  2004/05/04 17:05:17  gouriano
* Check double for overflow
*
* Revision 1.90  2004/03/23 15:39:23  gouriano
* Added setup options for skipping unknown data members
*
* Revision 1.89  2004/03/09 16:16:59  gouriano
* Corrected reading of sequential data
*
* Revision 1.88  2004/03/05 20:29:38  gouriano
* make it possible to skip unknown data fields
*
* Revision 1.87  2003/11/26 19:59:40  vasilche
* GetPosition() and GetDataFormat() methods now are implemented
* in parent classes CObjectIStream and CObjectOStream to avoid
* pure virtual method call in destructors.
*
* Revision 1.86  2003/08/25 15:59:09  gouriano
* added possibility to use namespaces in XML i/o streams
*
* Revision 1.85  2003/08/19 18:32:38  vasilche
* Optimized reading and writing strings.
* Avoid string reallocation when checking char values.
* Try to reuse old string data when string reference counting is not working.
*
* Revision 1.84  2003/08/14 20:03:58  vasilche
* Avoid memory reallocation when reading over preallocated object.
* Simplified CContainerTypeInfo iterators interface.
*
* Revision 1.83  2003/08/13 15:47:44  gouriano
* implemented serialization of AnyContent objects
*
* Revision 1.82  2003/05/22 20:10:02  gouriano
* added UTF8 strings
*
* Revision 1.81  2003/05/16 18:02:18  gouriano
* revised exception error messages
*
* Revision 1.80  2003/02/28 15:09:28  gouriano
* pass CEofException if there is no object in the input stream
*
* Revision 1.79  2002/12/23 19:00:49  dicuccio
* Tabs -> Spaces.  Lof to end.
*
* Revision 1.78  2002/12/23 18:41:49  dicuccio
* Minor tweaks to avoid warnings in MSVC
*
* Revision 1.77  2002/11/18 19:49:36  grichenk
* More details in error messages
*
* Revision 1.76  2002/11/05 17:45:54  grichenk
* Throw runtime_error instead of CEofException when a stream is broken
*
* Revision 1.75  2002/10/25 14:49:27  vasilche
* NCBI C Toolkit compatibility code extracted to libxcser library.
* Serial streams flags names were renamed to fXxx.
*
* Names of flags
*
* Revision 1.74  2001/12/09 07:42:25  vakatov
* Fixed a warning
*
* Revision 1.73  2001/10/17 20:41:23  grichenk
* Added CObjectOStream::CharBlock class
*
* Revision 1.72  2001/10/16 17:15:47  grichenk
* Fixed bug in CObjectIStreamAsn::ReadString()
*
* Revision 1.71  2001/08/02 22:28:42  grichenk
* Added memory pre-allocation on \n for long strings
*
* Revision 1.70  2001/07/25 19:12:25  grichenk
* Added memory pre-allocation for long strings
*
* Revision 1.69  2001/06/11 14:35:00  grichenk
* Added support for numeric tags in ASN.1 specifications and data streams.
*
* Revision 1.68  2001/06/07 17:12:50  grichenk
* Redesigned checking and substitution of non-printable characters
* in VisibleString
*
* Revision 1.67  2001/05/17 15:07:08  lavr
* Typos corrected
*
* Revision 1.66  2001/01/22 23:12:05  vakatov
* CObjectIStreamAsn::{Read,Skip}ClassSequential() -- use curr.member "pos"
*
* Revision 1.65  2001/01/05 20:10:51  vasilche
* CByteSource, CIStrBuffer, COStrBuffer, CLightString, CChecksum, CWeakMap
* were moved to util.
*
* Revision 1.64  2001/01/03 15:22:26  vasilche
* Fixed limited buffer size for REAL data in ASN.1 binary format.
* Fixed processing non ASCII symbols in ASN.1 text format.
*
* Revision 1.63  2000/12/26 22:24:11  vasilche
* Fixed errors of compilation on Mac.
*
* Revision 1.62  2000/12/15 21:29:01  vasilche
* Moved some typedefs/enums from corelib/ncbistd.hpp.
* Added flags to CObjectIStream/CObjectOStream: eFlagAllowNonAsciiChars.
* TByte typedef replaced by Uint1.
*
* Revision 1.61  2000/12/15 15:38:44  vasilche
* Added support of Int8 and long double.
* Enum values now have type Int4 instead of long.
*
* Revision 1.60  2000/11/20 17:25:36  vasilche
* Added prototypes of functions.
*
* Revision 1.59  2000/10/20 15:51:41  vasilche
* Fixed data error processing.
* Added interface for constructing container objects directly into output stream.
* object.hpp, object.inl and object.cpp were split to
* objectinfo.*, objecttype.*, objectiter.* and objectio.*.
*
* Revision 1.58  2000/10/17 18:45:34  vasilche
* Added possibility to turn off object cross reference detection in
* CObjectIStream and CObjectOStream.
*
* Revision 1.57  2000/10/04 19:18:59  vasilche
* Fixed processing floating point data.
*
* Revision 1.56  2000/10/03 17:22:43  vasilche
* Reduced header dependency.
* Reduced size of debug libraries on WorkShop by 3 times.
* Fixed tag allocation for parent classes.
* Fixed CObject allocation/deallocation in streams.
* Moved instantiation of several templates in separate source file.
*
* Revision 1.55  2000/09/29 16:18:23  vasilche
* Fixed binary format encoding/decoding on 64 bit compulers.
* Implemented CWeakMap<> for automatic cleaning map entries.
* Added cleaning local hooks via CWeakMap<>.
* Renamed ReadTypeName -> ReadFileHeader, ENoTypeName -> ENoFileHeader.
* Added some user interface methods to CObjectIStream, CObjectOStream and
* CObjectStreamCopier.
*
* Revision 1.54  2000/09/18 20:00:23  vasilche
* Separated CVariantInfo and CMemberInfo.
* Implemented copy hooks.
* All hooks now are stored in CTypeInfo/CMemberInfo/CVariantInfo.
* Most type specific functions now are implemented via function pointers instead of virtual functions.
*
* Revision 1.53  2000/09/01 13:16:17  vasilche
* Implemented class/container/choice iterators.
* Implemented CObjectStreamCopier for copying data without loading into memory.
*
* Revision 1.52  2000/08/15 19:44:49  vasilche
* Added Read/Write hooks:
* CReadObjectHook/CWriteObjectHook for objects of specified type.
* CReadClassMemberHook/CWriteClassMemberHook for specified members.
* CReadChoiceVariantHook/CWriteChoiceVariant for specified choice variants.
* CReadContainerElementHook/CWriteContainerElementsHook for containers.
*
* Revision 1.51  2000/07/03 20:47:22  vasilche
* Removed unused variables/functions.
*
* Revision 1.50  2000/07/03 20:39:55  vasilche
* Fixed comments.
*
* Revision 1.49  2000/07/03 18:42:45  vasilche
* Added interface to typeinfo via CObjectInfo and CConstObjectInfo.
* Reduced header dependency.
*
* Revision 1.48  2000/06/16 16:31:19  vasilche
* Changed implementation of choices and classes info to allow use of the same classes in generated and user written classes.
*
* Revision 1.47  2000/06/07 19:45:59  vasilche
* Some code cleaning.
* Macros renaming in more clear way.
* BEGIN_NAMED_*_INFO, ADD_*_MEMBER, ADD_NAMED_*_MEMBER.
*
* Revision 1.46  2000/06/01 19:07:03  vasilche
* Added parsing of XML data.
*
* Revision 1.45  2000/05/24 20:08:47  vasilche
* Implemented XML dump.
*
* Revision 1.44  2000/05/09 16:38:39  vasilche
* CObject::GetTypeInfo now moved to CObjectGetTypeInfo::GetTypeInfo to reduce possible errors.
* Added write context to CObjectOStream.
* Inlined most of methods of helping class Member, Block, ByteBlock etc.
*
* Revision 1.43  2000/05/03 14:38:14  vasilche
* SERIAL: added support for delayed reading to generated classes.
* DATATOOL: added code generation for delayed reading.
*
* Revision 1.42  2000/04/28 16:58:12  vasilche
* Added classes CByteSource and CByteSourceReader for generic reading.
* Added delayed reading of choice variants.
*
* Revision 1.41  2000/04/13 14:50:27  vasilche
* Added CObjectIStream::Open() and CObjectOStream::Open() for easier use.
*
* Revision 1.40  2000/03/29 15:55:28  vasilche
* Added two versions of object info - CObjectInfo and CConstObjectInfo.
* Added generic iterators by class -
*   CTypeIterator<class>, CTypeConstIterator<class>,
*   CStdTypeIterator<type>, CStdTypeConstIterator<type>,
*   CObjectsIterator and CObjectsConstIterator.
*
* Revision 1.39  2000/03/14 14:42:31  vasilche
* Fixed error reporting.
*
* Revision 1.38  2000/03/07 14:06:22  vasilche
* Added stream buffering to ASN.1 binary input.
* Optimized class loading/storing.
* Fixed bugs in processing OPTIONAL fields.
* Added generation of reference counted objects.
*
* Revision 1.37  2000/02/17 20:02:44  vasilche
* Added some standard serialization exceptions.
* Optimized text/binary ASN.1 reading.
* Fixed wrong encoding of StringStore in ASN.1 binary format.
* Optimized logic of object collection.
*
* Revision 1.36  2000/02/11 17:10:24  vasilche
* Optimized text parsing.
*
* Revision 1.35  2000/02/01 21:47:22  vasilche
* Added CGeneratedChoiceTypeInfo for generated choice classes.
* Added buffering to CObjectIStreamAsn.
* Removed CMemberInfo subclasses.
* Added support for DEFAULT/OPTIONAL members.
*
* Revision 1.34  2000/01/11 14:27:42  vasilche
* Found absent DBL_* macros in float.h
*
* Revision 1.33  2000/01/11 14:16:45  vasilche
* Fixed pow ambiguity.
*
* Revision 1.32  2000/01/10 19:46:40  vasilche
* Fixed encoding/decoding of REAL type.
* Fixed encoding/decoding of StringStore.
* Fixed encoding/decoding of NULL type.
* Fixed error reporting.
* Reduced object map (only classes).
*
* Revision 1.31  2000/01/05 19:43:54  vasilche
* Fixed error messages when reading from ASN.1 binary file.
* Fixed storing of integers with enumerated values in ASN.1 binary file.
* Added TAG support to key/value of map.
* Added support of NULL variant in CHOICE.
*
* Revision 1.30  1999/12/17 19:05:03  vasilche
* Simplified generation of GetTypeInfo methods.
*
* Revision 1.29  1999/11/18 20:19:01  vakatov
* ExpectString() -- get rid of the CodeWarrior(MAC) C++ compiler warning
*
* Revision 1.28  1999/10/25 20:19:51  vasilche
* Fixed strings representation in text ASN.1 files.
*
* Revision 1.27  1999/10/04 16:22:17  vasilche
* Fixed bug with old ASN.1 structures.
*
* Revision 1.26  1999/09/24 18:19:18  vasilche
* Removed dependency on NCBI toolkit.
*
* Revision 1.25  1999/09/23 21:16:07  vasilche
* Removed dependence on asn.h
*
* Revision 1.24  1999/09/23 18:56:58  vasilche
* Fixed bugs with overloaded methods in objistr*.hpp & objostr*.hpp
*
* Revision 1.23  1999/09/22 20:11:55  vasilche
* Modified for compilation on IRIX native c++ compiler.
*
* Revision 1.22  1999/08/17 15:13:06  vasilche
* Comments are allowed in ASN.1 text files.
* String values now parsed in accordance with ASN.1 specification.
*
* Revision 1.21  1999/08/13 15:53:50  vasilche
* C++ analog of asntool: datatool
*
* Revision 1.20  1999/07/26 18:31:35  vasilche
* Implemented skipping of unused values.
* Added more useful error report.
*
* Revision 1.19  1999/07/22 17:33:51  vasilche
* Unified reading/writing of objects in all three formats.
*
* Revision 1.18  1999/07/21 14:20:04  vasilche
* Added serialization of bool.
*
* Revision 1.17  1999/07/20 18:23:10  vasilche
* Added interface to old ASN.1 routines.
* Added fixed choice of subclasses to use for pointers.
*
* Revision 1.16  1999/07/19 15:50:33  vasilche
* Added interface to old ASN.1 routines.
* Added naming of key/value in STL map.
*
* Revision 1.15  1999/07/14 18:58:09  vasilche
* Fixed ASN.1 types/field naming.
*
* Revision 1.14  1999/07/13 20:18:18  vasilche
* Changed types naming.
*
* Revision 1.13  1999/07/09 16:32:54  vasilche
* Added OCTET STRING write/read.
*
* Revision 1.12  1999/07/07 21:15:02  vasilche
* Cleaned processing of string types (string, char*, const char*).
*
* Revision 1.11  1999/07/07 19:59:05  vasilche
* Reduced amount of data allocated on heap
* Cleaned ASN.1 structures info
*
* Revision 1.10  1999/07/07 18:18:32  vasilche
* Fixed some bugs found by MS VC++
*
* Revision 1.9  1999/07/02 21:31:55  vasilche
* Implemented reading from ASN.1 binary format.
*
* Revision 1.8  1999/07/01 17:55:30  vasilche
* Implemented ASN.1 binary write.
*
* Revision 1.7  1999/06/30 16:04:55  vasilche
* Added support for old ASN.1 structures.
*
* Revision 1.6  1999/06/24 14:44:55  vasilche
* Added binary ASN.1 output.
*
* Revision 1.5  1999/06/18 16:26:49  vasilche
* Fixed bug with unget() in MSVS
*
* Revision 1.4  1999/06/17 21:08:51  vasilche
* Fixed bug with unget()
*
* Revision 1.3  1999/06/17 20:42:05  vasilche
* Fixed storing/loading of pointers.
*
* Revision 1.2  1999/06/16 20:58:04  vasilche
* Added GetPtrTypeRef to avoid conflict in MSVS.
*
* Revision 1.1  1999/06/16 20:35:31  vasilche
* Cleaned processing of blocks of data.
* Added input from ASN.1 text format.
*
* Revision 1.7  1999/06/15 16:19:49  vasilche
* Added ASN.1 object output stream.
*
* Revision 1.6  1999/06/11 19:14:58  vasilche
* Working binary serialization and deserialization of first test object.
*
* Revision 1.5  1999/06/10 21:06:46  vasilche
* Working binary output and almost working binary input.
*
* Revision 1.4  1999/06/07 20:10:02  vasilche
* Avoid using of numeric_limits.
*
* Revision 1.3  1999/06/07 19:30:25  vasilche
* More bug fixes
*
* Revision 1.2  1999/06/04 20:51:45  vasilche
* First compilable version of serialization.
*
* Revision 1.1  1999/05/19 19:56:53  vasilche
* Commit just in case.
*
* ===========================================================================
*/