Inheritance: IBfsStructType
Exemplo n.º 1
0
        public BinaryFileSchema GetBFSTree(PegNode rootnode)
        {
            //First pass below root. Expecting datablocks and byteOrder fields.
            PegNode node = rootnode.child_;
            do
            {
                PegNode field = node;
                EBinaryFileSchemaParser field_id = GetNodeId(field);
                bool isformat = false;
                BfsSourceRange formatrange = GetSourceRange(field);
                BfsSourceRange blocktyperange;

                //BYTEORDER
                if (GetNodeId(field) == EBinaryFileSchemaParser.byteorder)
                {
                    BfsByteOrder byteorder = new BfsByteOrder();
                    StoreSourceRange(field, byteorder);
                    if ( GetNodeId(field.child_) == EBinaryFileSchemaParser.littleendian)
                        byteorder.ByteOrder = BfsByteOrderEnum.LittleEndian;
                    else if (GetNodeId(field.child_) == EBinaryFileSchemaParser.bigendian)
                        byteorder.ByteOrder = BfsByteOrderEnum.BigEndian;
                    else
                        byteorder.ByteOrder = BfsByteOrderEnum.LanguageDefault;
                    schema.ByteOrder = byteorder;
                }
                else
                {
                    PegNode block_content = field.child_;

                    //If the first node is a 'format' flag, go to next sibling
                    if (GetNodeId(block_content) == EBinaryFileSchemaParser.formatspecifier)
                    {
                        isformat = true;
                        formatrange = GetSourceRange(block_content);
                        block_content = block_content.next_;
                    }

                    blocktyperange = GetSourceRange(block_content);
                    block_content = block_content.next_;

                    IBfsDataBlock block;
                    switch (field_id)
                    {
                        //STRUCT
                        case EBinaryFileSchemaParser.p_struct:
                            block = new BfsStruct();
                            StoreSourceRange(node, block);
                            block.IsFormat = isformat;
                            ConvertStructType(block_content, block as IBfsStructType);
                            schema.DatablockList.Add(block);
                            break;

                        //ABS_OFFSET
                        case EBinaryFileSchemaParser.abs_offset:
                            block = new BfsAbsOffset();
                            StoreSourceRange(node, block);
                            block.IsFormat = isformat;
                            ConvertStructType(block_content, block as IBfsStructType);
                            schema.DatablockList.Add(block);
                            break;

                        //REL_OFFSET
                        case EBinaryFileSchemaParser.rel_offset:
                            block = new BfsRelOffset();
                            StoreSourceRange(node, block);
                            block.IsFormat = isformat;
                            ConvertStructType(block_content, block as IBfsStructType);
                            schema.DatablockList.Add(block);
                            break;

                        //ENUM
                        case EBinaryFileSchemaParser.p_enum:
                            block = new BfsEnum();
                            StoreSourceRange(node, block);
                            block.IsFormat = isformat;
                            ConvertEnumType(block_content, block as BfsEnum);
                            schema.DatablockList.Add(block);
                            break;

                        //BITFIELD
                        case EBinaryFileSchemaParser.bitfield:
                            block = new BfsBitfield();
                            StoreSourceRange(node, block);
                            block.BlockTypeSourceRange = GetSourceRange(field);
                            block.IsFormat = isformat;
                            ConvertBitfieldType(block_content, block as BfsBitfield);
                            schema.DatablockList.Add(block);
                            break;

                        default:
                            throw new AstConvertException("Not a data-block: " + GetNodeId(block_content));
                    }

                    block.BlockTypeSourceRange = blocktyperange;
                    if (isformat)
                        block.FormatSourceRange = formatrange;
                }

            }
            while ((node = node.next_) != null);

            return schema;
        }
Exemplo n.º 2
0
        private void ReadStruct(BfsStruct bfsstruct, TreeNode parent)
        {
            foreach(BfsStructField field in bfsstruct.StructFieldList)
            {
                TreeNode nodeParent = parent;
                if (field.FieldType.ArrayExtension is BfsKnownArray)
                {
                    BfsKnownArray knownArray = field.FieldType.ArrayExtension as BfsKnownArray;
                    TreeNode arrayParent = new TreeNode(field.Name + " []");
                    parent.Nodes.Add(arrayParent);
                    //TODO: Evaluate expression and use that number for the loop
                    //for(int i = 0; i<knownArray.
                }

            }
        }