basic/source/inc/codegen.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef _CODEGEN_HXX
  21 #define _CODEGEN_HXX
  22
  23 class SbiParser;
  24 class SbModule;
  25 #include "opcodes.hxx"
  26 #include "buffer.hxx"
  27
  28 class SbiCodeGen {
  29     SbiParser* pParser;         // for error messages, line, column etc.
  30     SbModule& rMod;
  31     SbiBuffer aCode;
  32     short  nLine, nCol;         // for stmnt command
  33     short  nForLevel;           // #29955
  34     bool bStmnt;            // true: statement-opcode is pending
  35 public:
  36     SbiCodeGen( SbModule&, SbiParser*, short );
  37     SbiParser* GetParser() { return pParser; }
  38     SbModule& GetModule() { return rMod; }
  39     sal_uInt32 Gen( SbiOpcode );
  40     sal_uInt32 Gen( SbiOpcode, sal_uInt32 );
  41     sal_uInt32 Gen( SbiOpcode, sal_uInt32, sal_uInt32 );
  42     void Patch( sal_uInt32 o, sal_uInt32 v ){ aCode.Patch( o, v ); }
  43     void BackChain( sal_uInt32 off )    { aCode.Chain( off );  }
  44     void Statement();
  45     void GenStmnt();            // create statement-opcode maybe
  46     sal_uInt32 GetPC();
  47     sal_uInt32 GetOffset()              { return GetPC() + 1; }
  48     void Save();
  49
  50     // #29955 service for-loop-level
  51     void IncForLevel( void ) { nForLevel++; }
  52     void DecForLevel( void ) { nForLevel--; }
  53
  54     static sal_uInt32 calcNewOffSet( sal_uInt8* pCode, sal_uInt16 nOffset );
  55     static sal_uInt16 calcLegacyOffSet( sal_uInt8* pCode, sal_uInt32 nOffset );
  56
  57 };
  58
  59 template < class T, class S >
  60 class PCodeBuffConvertor
  61 {
  62     T m_nSize; //
  63     sal_uInt8* m_pStart;
  64     sal_uInt8* m_pCnvtdBuf;
  65     S m_nCnvtdSize; //
  66
  67     //  Disable usual copying symantics and bodgy default ctor
  68     PCodeBuffConvertor();
  69     PCodeBuffConvertor(const PCodeBuffConvertor& );
  70     PCodeBuffConvertor& operator = ( const PCodeBuffConvertor& );
  71 public:
  72     PCodeBuffConvertor( sal_uInt8* pCode, T nSize ): m_nSize( nSize ),  m_pStart( pCode ), m_pCnvtdBuf( NULL ), m_nCnvtdSize( 0 ){ convert(); }
  73     S GetSize(){ return m_nCnvtdSize; }
  74     void convert();
  75     // Caller owns the buffer returned
  76     sal_uInt8* GetBuffer() { return m_pCnvtdBuf; }
  77 };
  78
  79 // #111897 PARAM_INFO flags start at 0x00010000 to not
  80 // conflict with DefaultId in SbxParamInfo::nUserData
  81 #define PARAM_INFO_PARAMARRAY       0x0010000
  82 #define PARAM_INFO_WITHBRACKETS     0x0020000
  83
  84 #endif
  85
  86 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */