src/core/failit/module.cpp

   1 /*
   2     Fail game engine
   3     Copyright 2007 Antoine Chavasse <a.chavasse@gmail.com>
   4
   5     This file is part of Fail.
   6
   7     Fail is free software; you can redistribute it and/or modify
   8     it under the terms of the GNU General Public License version 3
   9     as published by the Free Software Foundation.
  10
  11     Fail is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19 #include <sstream>
  20 #include <fstream>
  21 #include <vector>
  22 #include "module.h"
  23 #include "crc32.h"
  24
  25 using namespace fail;
  26 using namespace fail::failit;
  27 using namespace std;
  28
  29 namespace
  30 {
  31         void GenerateModuleHeaderName( std::ostream& Out_, const idlast::Namespace* pNamespace_ )
  32         {
  33                 vector< string > NSNames;
  34                 const idlast::Namespace* pCurrentNS = pNamespace_;
  35                 while( pCurrentNS->getParent() )
  36                 {
  37                         NSNames.push_back( pCurrentNS->getName() );
  38                         pCurrentNS = pCurrentNS->getParent();
  39                 }
  40
  41                 Out_ << "module_";
  42                 vector< string >::const_reverse_iterator it;
  43                 for( it = NSNames.rbegin(); it != NSNames.rend(); ++it )
  44                 {
  45                         Out_ << *it;
  46
  47                         if( ( it - NSNames.rbegin() + vector< string >::size_type( 1 ) ) < NSNames.size() )
  48                                 Out_ << '-';
  49                 }
  50
  51                 Out_ << ".h";
  52         }
  53 }
  54
  55 void fail::failit::GenerateModuleFiles( const idlast::Namespace* pNamespace_ )
  56 {
  57         // Build an array of namespace names, from the root namespace to the one we're interested in.
  58
  59         std::stringstream filename;
  60         GenerateModuleHeaderName( filename, pNamespace_ );
  61         ofstream file( filename.str().c_str() );
  62
  63         vector< string > NSNames;
  64         const idlast::Namespace* pCurrentNS = pNamespace_;
  65         while( pCurrentNS->getParent() )
  66         {
  67                 NSNames.push_back( pCurrentNS->getName() );
  68                 pCurrentNS = pCurrentNS->getParent();
  69         }
  70
  71         stringstream defname;
  72         vector< string >::const_reverse_iterator it;
  73         for( it = NSNames.rbegin(); it != NSNames.rend(); ++it )
  74                 defname << '_' << *it;
  75
  76         file << "//\n"
  77                 "// Automatically generated by FailIT (Fail IDL Translator).\n"
  78                 "//\n"
  79                 "#ifndef MODULE" << defname.str() << "_H_\n"
  80                 "#define MODULE" << defname.str() << "_H_\n\n"
  81                 "#include \"core/core.h\"\n";
  82
  83         const idlast::NamespaceDependencySet& deps = pNamespace_->getDependencies();
  84         idlast::NamespaceDependencySet::const_iterator depit;
  85         for( depit = deps.begin(); depit != deps.end(); ++depit )
  86         {
  87                 file << "#include \"";
  88                 GenerateModuleHeaderName( file, *depit );
  89                 file << "\"\n";
  90         }
  91
  92         file << '\n';
  93
  94         for( it = NSNames.rbegin(); it != NSNames.rend(); ++it )
  95         {
  96                 file << "namespace " << *it;
  97
  98                 if( ( it - NSNames.rbegin() + vector< string >::size_type( 1 ) ) < NSNames.size() )
  99                         file << " { ";
 100         }
 101
 102         file << "\n"
 103                         "{\n"
 104                         "\tstruct fail_tag {};\n";
 105
 106         for( unsigned int i = 0; i < NSNames.size(); ++i )
 107                 file << '}';
 108
 109         file << "\n\n";
 110
 111         const idlast::Dictionary< idlast::Class >& Classes = pNamespace_->getClasses();
 112         idlast::Dictionary< idlast::Class >::const_iterator clit;
 113
 114         for( clit = Classes.begin(); clit != Classes.end(); ++clit )
 115         {
 116                 file << "#include \"" << clit->second->getName() << ".h\"\n";
 117                 file << "#include \"traits_" << clit->second->getName() << ".h\"\n";
 118         }
 119
 120         const idlast::Dictionary< idlast::Class >& Structs = pNamespace_->getStructs();
 121         idlast::Dictionary< idlast::Class >::const_iterator stit;
 122         for( stit = Structs.begin(); stit != Structs.end(); ++stit )
 123         {
 124                 file << "#include \"" << stit->second->getName() << ".h\"\n";
 125                 file << "#include \"traits_" << stit->second->getName() << ".h\"\n";
 126         }
 127
 128         file << "\n"
 129                         "namespace fail\n"
 130                         "{\n"
 131                         "\ttemplate<> struct module_traits< ";
 132
 133         stringstream FullNSName;
 134         for( it = NSNames.rbegin(); it != NSNames.rend(); ++it )
 135         {
 136                 FullNSName << *it;
 137
 138                 if( ( it - NSNames.rbegin() + vector< string >::size_type( 1 ) ) < NSNames.size() )
 139                         FullNSName << "::";
 140         }
 141
 142         crc32 digest;
 143         digest.write( FullNSName.str().c_str(), FullNSName.str().size() );
 144
 145         file << FullNSName.str() << "::fail_tag >\n"
 146                         "\t{\n"
 147                         "\t\tstatic uint32_t Digest() { return 0x" << std::hex << digest.result() << "; }\n"
 148                         "\t\tstatic const char* Name() { return \"" << NSNames[0] << "\"; }\n"
 149                         "\t\tstatic const char* FullName() { return \"" << FullNSName.str() << "\"; }\n\n"
 150                         "\t\ttemplate< class V > static void VisitQualifiedName( V& Visitor_ )\n"
 151                         "\t\t{\n";
 152
 153         for( it = NSNames.rbegin(); it != NSNames.rend(); ++it )
 154                 file << "\t\t\tVisitor_.QualifiedNameComponent( \"" << *it << "\" );\n";
 155
 156         file << "\t\t}\n"
 157                         "\n"
 158                         "\t\ttemplate< class V > static void VisitClasses( V& Visitor_ )\n"
 159                         "\t\t{\n";
 160
 161         for( clit = Classes.begin(); clit != Classes.end(); ++clit )
 162         {
 163                 file << "\t\t\tVisitor_.template Class< "
 164                                 << FullNSName.str() << "::" << clit->second->getName() << " >();\n";
 165         }
 166
 167         for( stit = Structs.begin(); stit != Structs.end(); ++stit )
 168         {
 169                 file << "\t\t\tVisitor_.template Struct< "
 170                                 << FullNSName.str() << "::" << stit->second->getName() << " >();\n";
 171         }
 172
 173         file << "\t\t}\n"
 174                         "\t};\n"
 175                         "}\n"
 176                         "\n"
 177                         "#endif\n";
 178 }