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Annotation of parser3/src/include/pa_opcode.h, revision 1.2

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: 
1.2     ! parser      8:        $Id: pa_opcode.h,v 1.1 2001/05/07 14:00:46 paf Exp $
1.1       paf         9: */
                     10: 
                     11: #ifndef CODE_H
                     12: #define CODE_H
                     13: 
1.2     ! parser     14: #include "pa_config_includes.h"
1.1       paf        15: #include "pa_string.h"
                     16: #include "pa_array.h"
                     17: 
                     18: class Value;
                     19: class Array;
                     20: 
                     21: ///    Compiled operation code
                     22: enum OPCODE {
                     23:        //@{ 
                     24:        /// @name literals
                     25:        OP_VALUE,  OP_CURLY_CODE__STORE_PARAM,  OP_EXPR_CODE__STORE_PARAM,
                     26:        //@}
                     27: 
                     28:        //@{
                     29:        /// @name actions
                     30:        OP_WITH_SELF,   OP_WITH_ROOT,   OP_WITH_READ,   OP_WITH_WRITE,
                     31:        OP_GET_CLASS,
                     32:        OP_CONSTRUCT_VALUE, OP_CONSTRUCT_EXPR,
                     33:        OP_WRITE_VALUE,  OP_WRITE_EXPR_RESULT, OP_STRING__WRITE,
                     34:        OP_GET_ELEMENT, OP_GET_ELEMENT__WRITE,
                     35:        OP_CREATE_EWPOOL,       OP_REDUCE_EWPOOL,
                     36:        OP_CREATE_RWPOOL,       OP_REDUCE_RWPOOL,
                     37:        OP_CREATE_SWPOOL,       OP_REDUCE_SWPOOL,
                     38:        OP_GET_METHOD_FRAME,
                     39:        OP_STORE_PARAM,
                     40:        OP_CALL,
                     41:        //@}
                     42: 
                     43:        //@{
                     44:        /// @name expression ops: unary
                     45:        OP_NEG, OP_INV, OP_NOT, OP_DEF, OP_IN, OP_FEXISTS, OP_DEXISTS,
                     46:        //@}
                     47: 
                     48:        //@{
                     49:        /// @name expression ops: binary
                     50:        OP_SUB, OP_ADD, OP_MUL, OP_DIV, OP_MOD,
                     51:        OP_BIN_AND, OP_BIN_OR, OP_BIN_XOR,
                     52:        OP_LOG_AND, OP_LOG_OR, OP_LOG_XOR,
                     53:        OP_NUM_LT, OP_NUM_GT, OP_NUM_LE, OP_NUM_GE, OP_NUM_EQ, OP_NUM_NE,
                     54:        OP_STR_LT, OP_STR_GT, OP_STR_LE, OP_STR_GE, OP_STR_EQ, OP_STR_NE,
                     55:        OP_IS
                     56:        //@}
                     57: };
                     58: 
                     59: /** 
                     60:        Parser source code got compiled into intermediate form of Operation-s, 
                     61:        which is executed afterwards.
                     62: 
                     63:        It is compiled into Array of Operation-s.
                     64:        Each Operation can be either OPCODE or data pointer, 
                     65:        following the literal-instruction.
                     66:                - OP_VALUE followed by Value*
                     67:                - OP_CURLY_CODE__STORE_PARAM followed by Array*
                     68:                - OP_EXPR_CODE__STORE_PARAM followed by Array*
                     69: */
                     70: union Operation {
                     71:        void *cast; ///< casting helper 
                     72: 
                     73:        OPCODE code; ///< operation code
                     74:        Value *value; ///< not an operation, but rather value stored after argumented op
                     75:        Array *array; ///< not an operation, but rather code array stored after argumented op
                     76: };
                     77: 
                     78: #endif