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Annotation of parser3/src/include/pa_operation.h, revision 1.1.2.1

1.1.2.1 ! paf         1: /** @file
        !             2:        Parser: compiled code related decls.
        !             3: 
        !             4:        Copyright (c) 2001, 2003 ArtLebedev Group (http://www.artlebedev.com)
        !             5: 
        !             6:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
        !             7: */
        !             8: 
        !             9: #ifndef CODE_H
        !            10: #define CODE_H
        !            11: 
        !            12: static const char* IDENT_OPCODE_H="$Date: 2003/01/21 15:51:10 $";
        !            13: 
        !            14: #include "pa_array.h"
        !            15: 
        !            16: // forwards
        !            17: 
        !            18: enum OPCODE;
        !            19: class Value;
        !            20: class ArrayOperation;
        !            21: 
        !            22: /** 
        !            23:        Parser source code got compiled into intermediate form of Operation-s, 
        !            24:        which is executed afterwards.
        !            25: 
        !            26:        It is compiled into Array of Operation-s.
        !            27:        Each Operation can be either OPCODE or data pointer, 
        !            28:        following the literal-instruction.
        !            29:                - OP_VALUE followed by Value*
        !            30:                - OP_CURLY_CODE__STORE_PARAM followed by Array*
        !            31:                - OP_EXPR_CODE__STORE_PARAM followed by Array*
        !            32:                - OP_NESTED_CODE followed by Array*
        !            33: */
        !            34: union Operation {
        !            35:        void *cast; ///< casting helper 
        !            36: 
        !            37:        OPCODE code; ///< operation code
        !            38:        Value* value; ///< not an operation, but rather value stored after argumented op
        !            39:        ArrayOperation* array; ///< not an operation, but rather code array stored after argumented op
        !            40: };
        !            41: 
        !            42: 
        !            43: class ArrayOperation: public Array<Operation> {
        !            44: public:
        !            45:        /// goes through byte-code and deletes value/array, see execute.C
        !            46:        override ~ArrayOperation();
        !            47: };
        !            48: DECLARE_OBJECT_PTR(ArrayOperation);
        !            49: 
        !            50: 
        !            51: #endif