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Annotation of parser3/src/include/pa_opcode.h, revision 1.1

1.1     ! paf         1: /** @file
        !             2:        Parser: compiled code related decls.
        !             3: 
        !             4:        Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
        !             5: 
        !             6:        Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
        !             7: 
        !             8:        $Id: code.h,v 1.28 2001/05/07 13:29:59 paf Exp $
        !             9: */
        !            10: 
        !            11: #ifndef CODE_H
        !            12: #define CODE_H
        !            13: 
        !            14: #include "pa_string.h"
        !            15: #include "pa_array.h"
        !            16: 
        !            17: class Value;
        !            18: class Array;
        !            19: 
        !            20: ///    Compiled operation code
        !            21: enum OPCODE {
        !            22:        //@{ 
        !            23:        /// @name literals
        !            24:        OP_VALUE,  OP_CURLY_CODE__STORE_PARAM,  OP_EXPR_CODE__STORE_PARAM,
        !            25:        //@}
        !            26: 
        !            27:        //@{
        !            28:        /// @name actions
        !            29:        OP_WITH_SELF,   OP_WITH_ROOT,   OP_WITH_READ,   OP_WITH_WRITE,
        !            30:        OP_GET_CLASS,
        !            31:        OP_CONSTRUCT_VALUE, OP_CONSTRUCT_EXPR,
        !            32:        OP_WRITE_VALUE,  OP_WRITE_EXPR_RESULT, OP_STRING__WRITE,
        !            33:        OP_GET_ELEMENT, OP_GET_ELEMENT__WRITE,
        !            34:        OP_CREATE_EWPOOL,       OP_REDUCE_EWPOOL,
        !            35:        OP_CREATE_RWPOOL,       OP_REDUCE_RWPOOL,
        !            36:        OP_CREATE_SWPOOL,       OP_REDUCE_SWPOOL,
        !            37:        OP_GET_METHOD_FRAME,
        !            38:        OP_STORE_PARAM,
        !            39:        OP_CALL,
        !            40:        //@}
        !            41: 
        !            42:        //@{
        !            43:        /// @name expression ops: unary
        !            44:        OP_NEG, OP_INV, OP_NOT, OP_DEF, OP_IN, OP_FEXISTS, OP_DEXISTS,
        !            45:        //@}
        !            46: 
        !            47:        //@{
        !            48:        /// @name expression ops: binary
        !            49:        OP_SUB, OP_ADD, OP_MUL, OP_DIV, OP_MOD,
        !            50:        OP_BIN_AND, OP_BIN_OR, OP_BIN_XOR,
        !            51:        OP_LOG_AND, OP_LOG_OR, OP_LOG_XOR,
        !            52:        OP_NUM_LT, OP_NUM_GT, OP_NUM_LE, OP_NUM_GE, OP_NUM_EQ, OP_NUM_NE,
        !            53:        OP_STR_LT, OP_STR_GT, OP_STR_LE, OP_STR_GE, OP_STR_EQ, OP_STR_NE,
        !            54:        OP_IS
        !            55:        //@}
        !            56: };
        !            57: 
        !            58: /** 
        !            59:        Parser source code got compiled into intermediate form of Operation-s, 
        !            60:        which is executed afterwards.
        !            61: 
        !            62:        It is compiled into Array of Operation-s.
        !            63:        Each Operation can be either OPCODE or data pointer, 
        !            64:        following the literal-instruction.
        !            65:                - OP_VALUE followed by Value*
        !            66:                - OP_CURLY_CODE__STORE_PARAM followed by Array*
        !            67:                - OP_EXPR_CODE__STORE_PARAM followed by Array*
        !            68: */
        !            69: union Operation {
        !            70:        void *cast; ///< casting helper 
        !            71: 
        !            72:        OPCODE code; ///< operation code
        !            73:        Value *value; ///< not an operation, but rather value stored after argumented op
        !            74:        Array *array; ///< not an operation, but rather code array stored after argumented op
        !            75: };
        !            76: 
        !            77: #endif