コード例 #1
0
        internal ClrMetadataAccessor(PeDotNetInformation mdParent, Stream peStream, STORAGESTREAM streamInfo, long baseOffset)
        {
            _mdParent = mdParent;

            long offset = baseOffset + streamInfo.iOffset;
            long end    = offset + streamInfo.iSize;

            peStream.Seek(offset, SeekOrigin.Begin);

            _md     = new CMiniMdBase(peStream);
            _tables = new MetadataTableBase[_md.TableCount];

            peStream.AlignToBytes(4);

            for (int i = 0; i < _tables.Length; i++)
            {
                ClrTable table = (ClrTable)i;

                Type recordType = _md[table].m_RecordType;
                Type tableType  = typeof(MetadataTable <>).MakeGenericType(recordType);

                long startPosition = peStream.Position;
                long tableSize     = _md[table].m_cbRec * _md.Schema.RowCount[table];
                long expectedEnd   = startPosition + tableSize;

                _tables[i] = (MetadataTableBase)Activator.CreateInstance(tableType, _md, table, peStream);


                Debug.Assert(peStream.Position == expectedEnd);
            }

            long diff = peStream.Position - end;

            Debug.Assert(diff == 0 || diff == -2 || diff == -4);


            ulong validBits = _md.Schema.TableValidityBits;

            for (int i = 0;
                 i < _tables.Length;
                 i++, validBits >>= 1)
            {
                if ((validBits & 1) != 0)
                {
                    Debug.Assert(_tables[i].RowCount > 0, "used table has no rows.");
                }
                else
                {
                    Debug.Assert(_tables[i].RowCount == 0, "unused table has rows.");
                }
            }
        }
コード例 #2
0
ファイル: ClrType.cs プロジェクト: the-nerbs/PEReader
        internal ClrType(PeDotNetInformation rootAccessor, uint typeDefIndex)
        {
            _typeIndex = typeDefIndex;
            _record    = rootAccessor.Metadata.TypeDefTable[typeDefIndex];

            if (!rootAccessor.MetadataStrings.TryGetStringByOffset(_record.m_Name, out _name))
            {
                throw new BadImageFormatException("Type definition name is not valid.");
            }

            if (!rootAccessor.MetadataStrings.TryGetStringByOffset(_record.m_Namespace, out _namespace))
            {
                throw new BadImageFormatException("Type definition namespace is not valid.");
            }

            NestedClassRec_Full nestedType;

            if (rootAccessor.Metadata.NestedClassTable.TryGetRecordByKey(typeDefIndex, out nestedType))
            {
                _enclosingType = new ClrType(rootAccessor, nestedType.m_EnclosingClass);
            }
        }