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 #pragma once
  21
  22 #include "opcodes.hxx"
  23 #include "buffer.hxx"
  24
  25 class SbiParser;
  26 class SbModule;
  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
  36 public:
  37     SbiCodeGen(SbModule&, SbiParser*);
  38     SbiParser* GetParser() { return pParser; }
  39     SbModule& GetModule() { return rMod; }
  40     sal_uInt32 Gen( SbiOpcode );
  41     sal_uInt32 Gen( SbiOpcode, sal_uInt32 );
  42     sal_uInt32 Gen( SbiOpcode, sal_uInt32, sal_uInt32 );
  43     void Patch( sal_uInt32 o, sal_uInt32 v ){ aCode.Patch( o, v ); }
  44     void BackChain( sal_uInt32 off )    { aCode.Chain( off );  }
  45     void Statement();
  46     void GenStmnt();            // create statement-opcode maybe
  47     sal_uInt32 GetPC() const;
  48     sal_uInt32 GetOffset() const { return GetPC() + 1; }
  49     void Save();
  50
  51     // #29955 service for-loop-level
  52     void IncForLevel() { nForLevel++; }
  53     void DecForLevel() { nForLevel--; }
  54
  55     static sal_uInt32 calcNewOffSet( sal_uInt8 const * pCode, sal_uInt16 nOffset );
  56     static sal_uInt16 calcLegacyOffSet( sal_uInt8 const * pCode, sal_uInt32 nOffset );
  57
  58 };
  59
  60 template < class T, class S >
  61 class PCodeBuffConvertor
  62 {
  63     T m_nSize;
  64     const sal_uInt8* m_pStart;
  65     std::vector<sal_uInt8> m_aCnvtdBuf;
  66
  67     PCodeBuffConvertor(const PCodeBuffConvertor& ) = delete;
  68     PCodeBuffConvertor& operator = ( const PCodeBuffConvertor& ) = delete;
  69 public:
  70     PCodeBuffConvertor(const sal_uInt8* pCode, T nSize)
  71         : m_nSize(nSize)
  72         , m_pStart(pCode)
  73     {
  74         convert();
  75     }
  76     void convert();
  77     // pass ownership
  78     std::vector<sal_uInt8>&& GetBuffer() { return std::move(m_aCnvtdBuf); }
  79 };
  80
  81 // #111897 PARAM_INFO flags start at 0x00010000 to not
  82 // conflict with DefaultId in SbxParamInfo::nUserData
  83 #define PARAM_INFO_PARAMARRAY       0x0010000
  84 #define PARAM_INFO_WITHBRACKETS     0x0020000
  85
  86 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */