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Annotation of parser3/src/include/pa_operation.h, revision 1.1.2.6.2.5

1.1.2.1   paf         1: /** @file
                      2:        Parser: compiled code related decls.
                      3: 
1.1.2.4   paf         4:        Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
1.1.2.1   paf         5: 
                      6:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
                      7: */
                      8: 
1.1.2.2   paf         9: #ifndef OPERATION_H
                     10: #define OPERATION_H
1.1.2.1   paf        11: 
1.1.2.6.2.5! paf        12: static const char* IDENT_OPERATION_H="$Date: 2003/04/02 16:05:19 $";
1.1.2.1   paf        13: 
                     14: #include "pa_array.h"
1.1.2.6   paf        15: #include "pa_opcode.h"
                     16: #include "pa_value.h"
1.1.2.1   paf        17: 
                     18: // forwards
                     19: 
1.1.2.6.2.2  paf        20: union Operation;
1.1.2.6.2.1  paf        21: typedef Array<Operation> ArrayOperation;
1.1.2.1   paf        22: 
                     23: /** 
                     24:        Parser source code got compiled into intermediate form of Operation-s, 
1.1.2.3   paf        25:        which are executed afterwards.
1.1.2.1   paf        26: 
                     27:        It is compiled into Array of Operation-s.
                     28:        Each Operation can be either OPCODE or data pointer, 
                     29:        following the literal-instruction.
1.1.2.6.2.5! paf        30:                - OP_VALUE followed by Origin, followed by Value*
1.1.2.3   paf        31:                - OP_CURLY_CODE__STORE_PARAM followed by ArrayOperation*
                     32:                - OP_EXPR_CODE__STORE_PARAM followed by ArrayOperation*
                     33:                - OP_NESTED_CODE followed by ArrayOperation*
1.1.2.1   paf        34: */
1.1.2.6.2.2  paf        35: union Operation {
1.1.2.6.2.5! paf        36:        struct Origin {
        !            37:                uint file_no:8; ///< file number (max: 255): index in Request::file_list
        !            38:                uint line:8+8; ///< line number (max: 64535)
        !            39:                uint col:8; ///< column number (max: 255)
        !            40: 
        !            41:                static Origin create(uint afile_no, uint aline, uint acol) {
        !            42:                        Origin result={afile_no, aline, acol};
        !            43:                        return result;/*
        !            44:                        result.file_no=afile_no;
        !            45:                        result.line=aline;
        !            46:                        result.col=acol;*/
        !            47:                }
        !            48:        };
        !            49: 
        !            50:        OPCODE code; ///< operation code
        !            51:        Origin origin; ///< not an operation, but rather debug information: [OP_VALUE; debug_info; Value*]
1.1.2.6.2.1  paf        52:        Value* value; ///< not an operation, but rather value stored after argumented op
                     53:        ArrayOperation* ops; ///< not an operation, but rather code array stored after argumented op
1.1.2.2   paf        54: 
1.1.2.3   paf        55:        /// needed to fill unused Array entries
                     56:        Operation() {}
1.1.2.6.2.5! paf        57:        Operation(OPCODE acode): code(acode) {}
        !            58:        Operation(uint afile_no, uint aline, uint acol): 
        !            59:                origin(Origin::create(afile_no, aline, acol)) {}
1.1.2.6.2.1  paf        60:        Operation(Value* avalue): value(avalue) {}
                     61:        Operation(ArrayOperation* aops): ops(aops) {}   
1.1.2.1   paf        62: };
1.1.2.6.2.5! paf        63: 
        !            64: // defines
        !            65: 
        !            66: #define OPERATIONS_PER_OPVALUE 3
1.1.2.1   paf        67: 
                     68: #endif