comphelper/source/misc/anytostring.cxx

   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
  21 #include <comphelper/anytostring.hxx>
  22 #include <rtl/ustrbuf.hxx>
  23 #include <typelib/typedescription.hxx>
  24 #include <com/sun/star/lang/XServiceInfo.hpp>
  25
  26 #include "typedescriptionref.hxx"
  27
  28 using namespace ::com::sun::star;
  29 using ::com::sun::star::uno::TypeDescription;
  30 using ::comphelper::detail::TypeDescriptionRef;
  31
  32 namespace comphelper {
  33 namespace {
  34
  35 void appendTypeError(
  36     OUStringBuffer & buf, const typelib_TypeDescriptionReference * typeRef )
  37 {
  38     buf.append( "<cannot get type description of type " );
  39     buf.append( OUString::unacquired( &typeRef->pTypeName ) );
  40     buf.append( '>' );
  41 }
  42
  43 void appendChar( OUStringBuffer & buf, sal_Unicode c )
  44 {
  45     if (c < ' ' || c > '~') {
  46         buf.append( "\\X" );
  47         OUString const s(
  48             OUString::number( static_cast< sal_Int32 >(c), 16 ) );
  49         for ( sal_Int32 f = 4 - s.getLength(); f > 0; --f )
  50             buf.append( '0' );
  51         buf.append( s );
  52     }
  53     else {
  54         buf.append( c );
  55     }
  56 }
  57
  58
  59 void appendValue( OUStringBuffer & buf,
  60                   void const * val, typelib_TypeDescriptionReference * typeRef,
  61                   bool prependType )
  62 {
  63     if (typeRef->eTypeClass == typelib_TypeClass_VOID) {
  64         buf.append( "void" );
  65         return;
  66     }
  67     assert(val != nullptr);
  68
  69     if (prependType &&
  70         typeRef->eTypeClass != typelib_TypeClass_STRING &&
  71         typeRef->eTypeClass != typelib_TypeClass_CHAR &&
  72         typeRef->eTypeClass != typelib_TypeClass_BOOLEAN)
  73     {
  74         buf.append( '(' );
  75         buf.append( OUString::unacquired( &typeRef->pTypeName ) );
  76         buf.append( ") " );
  77     }
  78
  79     switch (typeRef->eTypeClass) {
  80     case typelib_TypeClass_INTERFACE: {
  81         buf.append( '@' );
  82         buf.append( reinterpret_cast< sal_Int64 >(
  83                         *static_cast< void * const * >(val) ), 16 );
  84         uno::Reference< lang::XServiceInfo > xServiceInfo(
  85             *static_cast< uno::XInterface * const * >(val),
  86             uno::UNO_QUERY );
  87         if (xServiceInfo.is()) {
  88             buf.append( " (ImplementationName = \"" );
  89             buf.append( xServiceInfo->getImplementationName() );
  90             buf.append( "\")" );
  91         }
  92         break;
  93     }
  94     case typelib_TypeClass_STRUCT:
  95     case typelib_TypeClass_EXCEPTION: {
  96         buf.append( "{ " );
  97         TypeDescription typeDescr( typeRef );
  98         if (!typeDescr.is())
  99             typeDescr.makeComplete();
 100         if (!typeDescr.is()) {
 101             appendTypeError( buf, typeRef );
 102         }
 103         else {
 104             typelib_CompoundTypeDescription * compType =
 105                 reinterpret_cast< typelib_CompoundTypeDescription * >(
 106                     typeDescr.get() );
 107             sal_Int32 nDescr = compType->nMembers;
 108
 109             if (compType->pBaseTypeDescription) {
 110                 appendValue(
 111                     buf, val, reinterpret_cast<
 112                     typelib_TypeDescription * >(
 113                         compType->pBaseTypeDescription)->pWeakRef, false );
 114                 if (nDescr > 0)
 115                     buf.append( ", " );
 116             }
 117
 118             typelib_TypeDescriptionReference ** ppTypeRefs =
 119                 compType->ppTypeRefs;
 120             sal_Int32 * memberOffsets = compType->pMemberOffsets;
 121             rtl_uString ** ppMemberNames = compType->ppMemberNames;
 122
 123             for ( sal_Int32 nPos = 0; nPos < nDescr; ++nPos )
 124             {
 125                 buf.append( ppMemberNames[ nPos ] );
 126                 buf.append( " = " );
 127                 TypeDescriptionRef memberType( ppTypeRefs[ nPos ] );
 128                 if (!memberType.is()) {
 129                     appendTypeError( buf, ppTypeRefs[ nPos ] );
 130                 }
 131                 else {
 132                     appendValue( buf,
 133                                  static_cast< char const * >(
 134                                      val ) + memberOffsets[ nPos ],
 135                                  memberType->pWeakRef, true );
 136                 }
 137                 if (nPos < (nDescr - 1))
 138                     buf.append( ", " );
 139             }
 140         }
 141         buf.append( " }" );
 142         break;
 143     }
 144     case typelib_TypeClass_SEQUENCE: {
 145         TypeDescriptionRef typeDescr( typeRef );
 146         if (!typeDescr.is()) {
 147             appendTypeError( buf,typeRef );
 148         }
 149         else {
 150             typelib_TypeDescriptionReference * elementTypeRef =
 151                 reinterpret_cast<
 152                 typelib_IndirectTypeDescription * >(typeDescr.get())->pType;
 153             TypeDescriptionRef elementTypeDescr( elementTypeRef );
 154             if (!elementTypeDescr.is())
 155             {
 156                 appendTypeError( buf, elementTypeRef );
 157             }
 158             else
 159             {
 160                 sal_Int32 nElementSize = elementTypeDescr->nSize;
 161                 uno_Sequence * seq =
 162                     *static_cast< uno_Sequence * const * >(val);
 163                 sal_Int32 nElements = seq->nElements;
 164
 165                 if (nElements > 0)
 166                 {
 167                     buf.append( "{ " );
 168                     char const * pElements = seq->elements;
 169                     for ( sal_Int32 nPos = 0; nPos < nElements; ++nPos )
 170                     {
 171                         appendValue(
 172                             buf, pElements + (nElementSize * nPos),
 173                             elementTypeDescr->pWeakRef, false );
 174                         if (nPos < (nElements - 1))
 175                             buf.append( ", " );
 176                     }
 177                     buf.append( " }" );
 178                 }
 179                 else
 180                 {
 181                     buf.append( "{}" );
 182                 }
 183             }
 184         }
 185         break;
 186     }
 187     case typelib_TypeClass_ANY: {
 188         buf.append( "{ " );
 189         uno_Any const * pAny = static_cast< uno_Any const * >(val);
 190         appendValue( buf, pAny->pData, pAny->pType, true );
 191         buf.append( " }" );
 192         break;
 193     }
 194     case typelib_TypeClass_TYPE:
 195         buf.append( (*static_cast<
 196                      typelib_TypeDescriptionReference * const * >(val)
 197                         )->pTypeName );
 198         break;
 199     case typelib_TypeClass_STRING: {
 200         buf.append( '\"' );
 201         OUString const & str = OUString::unacquired(
 202             static_cast< rtl_uString * const * >(val) );
 203         sal_Int32 len = str.getLength();
 204         for ( sal_Int32 pos = 0; pos < len; ++pos )
 205         {
 206             sal_Unicode c = str[ pos ];
 207             if (c == '\"')
 208                 buf.append( "\\\"" );
 209             else if (c == '\\')
 210                 buf.append( "\\\\" );
 211             else
 212                 appendChar( buf, c );
 213         }
 214         buf.append( '\"' );
 215         break;
 216     }
 217     case typelib_TypeClass_ENUM: {
 218         TypeDescription typeDescr( typeRef );
 219         if (!typeDescr.is())
 220             typeDescr.makeComplete();
 221         if (!typeDescr.is()) {
 222             appendTypeError( buf, typeRef );
 223         }
 224         else
 225         {
 226             sal_Int32 * pValues =
 227                 reinterpret_cast< typelib_EnumTypeDescription * >(
 228                     typeDescr.get() )->pEnumValues;
 229             sal_Int32 nPos = reinterpret_cast< typelib_EnumTypeDescription * >(
 230                 typeDescr.get() )->nEnumValues;
 231             while (nPos--)
 232             {
 233                 if (pValues[ nPos ] == *static_cast< int const * >(val))
 234                     break;
 235             }
 236             if (nPos >= 0)
 237             {
 238                 buf.append( reinterpret_cast< typelib_EnumTypeDescription * >(
 239                                 typeDescr.get() )->ppEnumNames[ nPos ] );
 240             }
 241             else
 242             {
 243                 buf.append( "?unknown enum value?" );
 244             }
 245         }
 246         break;
 247     }
 248     case typelib_TypeClass_BOOLEAN:
 249         if (*static_cast< sal_Bool const * >(val))
 250             buf.append( "true" );
 251         else
 252             buf.append( "false" );
 253         break;
 254     case typelib_TypeClass_CHAR: {
 255         buf.append( '\'' );
 256         sal_Unicode c = *static_cast< sal_Unicode const * >(val);
 257         if (c == '\'')
 258             buf.append( "\\\'" );
 259         else if (c == '\\')
 260             buf.append( "\\\\" );
 261         else
 262             appendChar( buf, c );
 263         buf.append( '\'' );
 264         break;
 265     }
 266     case typelib_TypeClass_FLOAT:
 267         buf.append( *static_cast< float const * >(val) );
 268         break;
 269     case typelib_TypeClass_DOUBLE:
 270         buf.append( *static_cast< double const * >(val) );
 271         break;
 272     case typelib_TypeClass_BYTE:
 273         buf.append( static_cast< sal_Int32 >(
 274                         *static_cast< sal_Int8 const * >(val) ) );
 275         break;
 276     case typelib_TypeClass_SHORT:
 277         buf.append( static_cast< sal_Int32 >(
 278                         *static_cast< sal_Int16 const * >(val) ) );
 279         break;
 280     case typelib_TypeClass_UNSIGNED_SHORT:
 281         buf.append( static_cast< sal_Int32 >(
 282                         *static_cast< sal_uInt16 const * >(val) ) );
 283         break;
 284     case typelib_TypeClass_LONG:
 285         buf.append( *static_cast< sal_Int32 const * >(val) );
 286         break;
 287     case typelib_TypeClass_UNSIGNED_LONG:
 288         buf.append( static_cast< sal_Int64 >(
 289                         *static_cast< sal_uInt32 const * >(val) ) );
 290         break;
 291     case typelib_TypeClass_HYPER:
 292     case typelib_TypeClass_UNSIGNED_HYPER:
 293         buf.append( *static_cast< sal_Int64 const * >(val) );
 294         break;
 295 //     case typelib_TypeClass_UNKNOWN:
 296 //     case typelib_TypeClass_SERVICE:
 297 //     case typelib_TypeClass_MODULE:
 298     default:
 299         buf.append( '?' );
 300         break;
 301     }
 302 }
 303
 304 } // anon namespace
 305
 306
 307 OUString anyToString( uno::Any const & value )
 308 {
 309     OUStringBuffer buf;
 310     appendValue( buf, value.getValue(), value.getValueTypeRef(), true );
 311     return buf.makeStringAndClear();
 312 }
 313
 314 } // namespace comphelper
 315
 316 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */