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Annotation of parser3/src/include/code.h, revision 1.25

1.24      paf         1: /** @file
1.19      paf         2:        Parser
                      3:        Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.20      paf         4:        Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.19      paf         5: 
1.25    ! paf         6:        $Id: code.h,v 1.24 2001/03/19 15:29:37 paf Exp $
1.1       paf         7: */
                      8: 
                      9: #ifndef CODE_H
                     10: #define CODE_H
                     11: 
1.2       paf        12: #include "pa_string.h"
                     13: #include "pa_array.h"
                     14: 
1.24      paf        15: class Value;
                     16: class Array;
                     17: 
                     18: ///    Compiled operation code
1.1       paf        19: enum OPCODE {
1.24      paf        20:        //@{
                     21:        /// literal
1.23      paf        22:        OP_VALUE,  OP_CURLY_CODE__STORE_PARAM,  OP_EXPR_CODE__STORE_PARAM,
1.24      paf        23:        //@}
1.10      paf        24: 
1.24      paf        25:        //@{
                     26:        /// action
1.8       paf        27:        OP_WITH_SELF,   OP_WITH_ROOT,   OP_WITH_READ,   OP_WITH_WRITE,
1.16      paf        28:        OP_GET_CLASS,
1.17      paf        29:        OP_CONSTRUCT_VALUE, OP_CONSTRUCT_EXPR,
1.22      paf        30:        OP_WRITE_VALUE,  OP_WRITE_EXPR_RESULT, OP_STRING__WRITE,
1.5       paf        31:        OP_GET_ELEMENT, OP_GET_ELEMENT__WRITE,
1.1       paf        32:        OP_CREATE_EWPOOL,       OP_REDUCE_EWPOOL,
                     33:        OP_CREATE_RWPOOL,       OP_REDUCE_RWPOOL,
1.10      paf        34:        OP_CREATE_SWPOOL,       OP_REDUCE_SWPOOL,
1.1       paf        35:        OP_GET_METHOD_FRAME,
                     36:        OP_STORE_PARAM,
1.10      paf        37:        OP_CALL,
1.24      paf        38:        //@}
1.10      paf        39: 
1.24      paf        40:        //@{
                     41:        /// expression op: unary
1.10      paf        42:        OP_NEG, OP_INV, OP_NOT, OP_DEF, OP_IN, OP_FEXISTS,
1.24      paf        43:        //@}
                     44: 
                     45:        //@{
                     46:        /// expression op: binary
1.11      paf        47:        OP_SUB, OP_ADD, OP_MUL, OP_DIV, OP_MOD,
1.14      paf        48:        OP_BIN_AND, OP_BIN_OR, OP_BIN_XOR,
                     49:        OP_LOG_AND, OP_LOG_OR, OP_LOG_XOR,
1.10      paf        50:        OP_NUM_LT, OP_NUM_GT, OP_NUM_LE, OP_NUM_GE, OP_NUM_EQ, OP_NUM_NE,
1.21      paf        51:        OP_STR_LT, OP_STR_GT, OP_STR_LE, OP_STR_GE, OP_STR_EQ, OP_STR_NE,
                     52:        OP_IS
1.24      paf        53:        //@}
1.11      paf        54: };
1.2       paf        55: 
1.25    ! paf        56: /** 
1.24      paf        57:        Parser source code got compiled into intermediate form of Operation-s, 
                     58:        which is executed afterwards.
                     59: 
                     60:        It is compiled into Array of Operation-s.
                     61:        Each Operation can be either OPCODE or data pointer, 
                     62:        following the literal-instruction.
                     63:                - OP_VALUE followed by Value*
                     64:                - OP_CURLY_CODE__STORE_PARAM followed by Array*
                     65:                - OP_EXPR_CODE__STORE_PARAM followed by Array*
                     66: */
1.2       paf        67: union Operation {
1.24      paf        68:        void *cast; ///< casting helper 
1.2       paf        69: 
1.24      paf        70:        OPCODE code; ///< operation code
                     71:        Value *value; ///< not an operation, but rather value stored after argumented op
                     72:        Array *array; ///< not an operation, but rather code array stored after argumented op
1.1       paf        73: };
                     74: 
                     75: #endif