| 1 | /* |
| 2 | Copyright (C) 2006-2008 by Intra2net AG |
| 3 | intra2net.com |
| 4 | |
| 5 | The software in this package is distributed under the GNU General |
| 6 | Public License version 2 (with a special exception described below). |
| 7 | |
| 8 | A copy of GNU General Public License (GPL) is included in this distribution, |
| 9 | in the file COPYING.GPL. |
| 10 | |
| 11 | As a special exception, if other files instantiate templates or use macros |
| 12 | or inline functions from this file, or you compile this file and link it |
| 13 | with other works to produce a work based on this file, this file |
| 14 | does not by itself cause the resulting work to be covered |
| 15 | by the GNU General Public License. |
| 16 | |
| 17 | However the source code for this file must still be made available |
| 18 | in accordance with section (3) of the GNU General Public License. |
| 19 | |
| 20 | This exception does not invalidate any other reasons why a work based |
| 21 | on this file might be covered by the GNU General Public License. |
| 22 | */ |
| 23 | |
| 24 | #include <libxml++/libxml++.h> |
| 25 | #include <cassert> |
| 26 | #include <iostream> |
| 27 | #include <set> |
| 28 | #include <fstream> |
| 29 | #include <list> |
| 30 | #include <stdexcept> |
| 31 | #include <string> |
| 32 | #include <boost/lexical_cast.hpp> |
| 33 | #include <boost/serialization/extended_type_info.hpp> |
| 34 | |
| 35 | #include "config.h" |
| 36 | |
| 37 | |
| 38 | |
| 39 | //! map group to class name |
| 40 | std::string groupClass(const std::string &group) |
| 41 | { |
| 42 | return std::string("cmd_group_")+group; |
| 43 | } |
| 44 | |
| 45 | //! convert string to upper case |
| 46 | std::string toupper(std::string s) |
| 47 | { |
| 48 | for (unsigned i=0; i<s.length(); ++i) s[i]=toupper(s[i]); |
| 49 | return s; |
| 50 | } |
| 51 | |
| 52 | //! replace all characters f by r in string s |
| 53 | std::string replace(std::string s, char f, char r) |
| 54 | { |
| 55 | for (unsigned i=0; i<s.length(); ++i) if (s[i]==f) s[i]=r; |
| 56 | return s; |
| 57 | } |
| 58 | |
| 59 | //! strip prefix from string s |
| 60 | /*! |
| 61 | \return string s without prefix or an empty string on error |
| 62 | */ |
| 63 | std::string strip(std::string s, std::string prefix) |
| 64 | { |
| 65 | std::string error; |
| 66 | if ( (prefix.length()>s.length() ) || ( std::string(s,0,prefix.length())!=prefix ) ) return error; |
| 67 | return std::string(s, prefix.length(), s.length()-prefix.length()); |
| 68 | } |
| 69 | |
| 70 | //! get child element by id |
| 71 | /*! |
| 72 | \return pointer to element having id or null on error |
| 73 | \todo find libxmlpp pendant |
| 74 | */ |
| 75 | const xmlpp::Element* get_element_by_id(const xmlpp::Element* element, const std::string &id) |
| 76 | { |
| 77 | const xmlpp::Attribute* cid = element->get_attribute("id"); |
| 78 | if ( cid && ( cid->get_value() == id)) return element; |
| 79 | |
| 80 | //Recurse through child nodes: |
| 81 | xmlpp::Node::NodeList list = element->get_children(); |
| 82 | for (xmlpp::Node::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter) |
| 83 | { |
| 84 | const xmlpp::Element* element = dynamic_cast<const xmlpp::Element*>(*iter); |
| 85 | if (element) |
| 86 | { |
| 87 | const xmlpp::Element* match = get_element_by_id(element, id); |
| 88 | if (match) return match; |
| 89 | } |
| 90 | } |
| 91 | return NULL; |
| 92 | } |
| 93 | |
| 94 | std::string get_file(const xmlpp::Element* root, const std::string &file_id) |
| 95 | { |
| 96 | std::string error; |
| 97 | const xmlpp::Element* e=get_element_by_id(root, file_id); |
| 98 | if ((!e)||(!e->get_attribute("name"))) return error; |
| 99 | return e->get_attribute("name")->get_value(); |
| 100 | } |
| 101 | |
| 102 | //! get namespace by id |
| 103 | /*! |
| 104 | \return namespace name or empty string on error |
| 105 | */ |
| 106 | std::string get_namespace(const xmlpp::Element* root, const std::string &id) |
| 107 | { |
| 108 | std::string error; |
| 109 | const xmlpp::Element* element(get_element_by_id(root, id)); |
| 110 | // [RP:20071024]: use "demangled" attribute instead of "name" to cover nested namespaces: |
| 111 | if ((!element)||(!element->get_attribute("demangled"))) return error; |
| 112 | return element->get_attribute("demangled")->get_value(); |
| 113 | } |
| 114 | |
| 115 | //! procedure marked for export? |
| 116 | bool is_marked(const std::string &attrs) |
| 117 | { |
| 118 | // todo: improve this |
| 119 | std::string to_match("gccxml(libt2n-"); |
| 120 | std::string::size_type p(attrs.find(to_match)); |
| 121 | return (p!=std::string::npos); |
| 122 | } |
| 123 | |
| 124 | struct type_info |
| 125 | { |
| 126 | std::string name; |
| 127 | std::string noref_name; |
| 128 | bool operator==(const type_info& o) {return (name==o.name) && (noref_name == o.noref_name);} |
| 129 | std::string noref() const {return noref_name.empty() ? name : noref_name;} |
| 130 | bool isVoid() const {return name=="void";} |
| 131 | }; |
| 132 | |
| 133 | std::ostream &operator<<(std::ostream &o, const type_info &t) |
| 134 | { |
| 135 | o << t.name; |
| 136 | return o; |
| 137 | } |
| 138 | |
| 139 | struct parse_error : public std::runtime_error |
| 140 | { |
| 141 | parse_error(const std::string &file, unsigned line, const std::string &msg) |
| 142 | : std::runtime_error(file+":"+boost::lexical_cast<std::string>(line)+": error: "+msg) |
| 143 | {} |
| 144 | }; |
| 145 | |
| 146 | struct error_name_too_long : public std::runtime_error |
| 147 | { |
| 148 | error_name_too_long(const std::string &name) |
| 149 | : std::runtime_error("symbol name '" + name + "' too long for serialization (" |
| 150 | + boost::lexical_cast<std::string>(name.length()) + ">" |
| 151 | + boost::lexical_cast<std::string>(BOOST_SERIALIZATION_MAX_KEY_SIZE-1) + ")") |
| 152 | {} |
| 153 | }; |
| 154 | |
| 155 | //! get type by id |
| 156 | /*! |
| 157 | \return type name or empty string on error |
| 158 | */ |
| 159 | type_info get_type(const xmlpp::Element* root, const std::string &id) |
| 160 | { |
| 161 | type_info error; |
| 162 | const xmlpp::Element* element(get_element_by_id(root, id)); |
| 163 | if (!element) return error; |
| 164 | |
| 165 | // TODO: not yet complete |
| 166 | // if we recurse - when do we stop? |
| 167 | // if it is a typedef? yes? (hmm if the typedef is in the file parsed this will not work) |
| 168 | |
| 169 | // TODO: const and reference types handling is a ugly hack |
| 170 | |
| 171 | std::string tag(element->get_name()); |
| 172 | if (tag=="ReferenceType") |
| 173 | { |
| 174 | assert(element->get_attribute("type")); |
| 175 | type_info ret(get_type(root, element->get_attribute("type")->get_value())); |
| 176 | if (ret==error) return error; |
| 177 | // at the moment we only support const & |
| 178 | // todo: nice error message! |
| 179 | if ((ret.noref_name=strip(ret.name,"const ")).empty()) return error; |
| 180 | ret.name=ret.name+"&"; |
| 181 | return ret; |
| 182 | } |
| 183 | else if (tag=="CvQualifiedType") |
| 184 | { |
| 185 | assert(element->get_attribute("type")); |
| 186 | type_info ret(get_type(root, element->get_attribute("type")->get_value())); |
| 187 | if (ret==error) return error; |
| 188 | ret.name=std::string("const ")+ret.name; |
| 189 | return ret; |
| 190 | } |
| 191 | else if (tag=="PointerType") |
| 192 | { |
| 193 | // todo: nearly the same as reference type handling |
| 194 | assert(element->get_attribute("type")); |
| 195 | type_info ret(get_type(root, element->get_attribute("type")->get_value())); |
| 196 | if (ret==error) return error; |
| 197 | // at the moment we only support const & |
| 198 | // todo: nice error message! |
| 199 | if ((ret.noref_name=strip(ret.name,"const ")).empty()) return error; |
| 200 | ret.name=ret.name+"*"; |
| 201 | return ret; |
| 202 | } |
| 203 | |
| 204 | assert(element->get_attribute("name")); |
| 205 | type_info ret; |
| 206 | if (element->get_attribute("context")) |
| 207 | { |
| 208 | ret.name=get_namespace(root, element->get_attribute("context")->get_value()); |
| 209 | if (ret.name!="::") |
| 210 | ret.name+="::"; |
| 211 | else |
| 212 | // do not explicitely add :: |
| 213 | ret.name=""; |
| 214 | } |
| 215 | ret.name+=element->get_attribute("name")->get_value(); |
| 216 | return ret; |
| 217 | } |
| 218 | |
| 219 | struct Arg |
| 220 | { |
| 221 | std::string name; |
| 222 | type_info type; |
| 223 | std::string defaultArg; |
| 224 | }; |
| 225 | |
| 226 | struct t2n_procedure |
| 227 | { |
| 228 | typedef std::list<Arg> Args; |
| 229 | |
| 230 | type_info ret_type; |
| 231 | std::string name; |
| 232 | std::string mangled; |
| 233 | Args args; |
| 234 | |
| 235 | std::string ret_classname() const |
| 236 | { |
| 237 | std::string result = name+mangled+"_res"; |
| 238 | if (result.length() >= BOOST_SERIALIZATION_MAX_KEY_SIZE) |
| 239 | throw error_name_too_long(result); |
| 240 | return result; |
| 241 | } |
| 242 | std::string cmd_classname() const |
| 243 | { |
| 244 | std::string result = name+mangled+"_cmd"; |
| 245 | if (result.length() >= BOOST_SERIALIZATION_MAX_KEY_SIZE) |
| 246 | throw error_name_too_long(result); |
| 247 | return result; |
| 248 | } |
| 249 | bool hasReturn() const {return !ret_type.isVoid();} |
| 250 | }; |
| 251 | |
| 252 | std::ostream &operator<<(std::ostream &o, const t2n_procedure::Args &args) |
| 253 | { |
| 254 | for (t2n_procedure::Args::const_iterator it=args.begin();it!=args.end();++it) |
| 255 | { |
| 256 | if (it!=args.begin()) o << ", "; |
| 257 | o << it->type << " " << it->name; |
| 258 | |
| 259 | if (!it->defaultArg.empty()) |
| 260 | o << "=" << it->defaultArg; |
| 261 | } |
| 262 | return o; |
| 263 | } |
| 264 | |
| 265 | std::ostream &operator<<(std::ostream &o, const t2n_procedure &f) |
| 266 | { |
| 267 | o << f.ret_type << " " << f.name << "(" << f.args << ")"; |
| 268 | return o; |
| 269 | } |
| 270 | |
| 271 | std::pair<std::string, unsigned> |
| 272 | get_file_and_line(const xmlpp::Element* root, const xmlpp::Element* element) |
| 273 | { |
| 274 | return std::pair<std::string, unsigned>(get_file(root, element->get_attribute("file")->get_value()), |
| 275 | boost::lexical_cast<unsigned>(element->get_attribute("line")->get_value())-1); |
| 276 | } |
| 277 | |
| 278 | std::string get_file_and_line_as_string(const xmlpp::Element* root, const xmlpp::Element* element) |
| 279 | { |
| 280 | std::pair<std::string, unsigned> fl(get_file_and_line(root,element)); |
| 281 | return std::string(fl.first)+":"+boost::lexical_cast<std::string>(fl.second); |
| 282 | } |
| 283 | |
| 284 | class Parser |
| 285 | { |
| 286 | public: |
| 287 | Parser(const std::string &fname) : m_fname(fname) {} |
| 288 | |
| 289 | std::list<t2n_procedure> get_procedures() |
| 290 | { |
| 291 | xmlpp::DomParser parser; |
| 292 | // parser.set_validate(); |
| 293 | parser.set_substitute_entities(); //We just want the text to be resolved/unescaped automatically. |
| 294 | parser.parse_file(m_fname); |
| 295 | if (parser) |
| 296 | { |
| 297 | //Walk the tree: |
| 298 | const xmlpp::Node* pNode = parser.get_document()->get_root_node(); //deleted by DomParser. |
| 299 | const xmlpp::Element* root = dynamic_cast<const xmlpp::Element*>(pNode); |
| 300 | assert(root); |
| 301 | visit_node(root); |
| 302 | } |
| 303 | return m_procedures; |
| 304 | } |
| 305 | protected: |
| 306 | std::string m_fname; |
| 307 | std::list<t2n_procedure> m_procedures; |
| 308 | |
| 309 | void parse_function(const xmlpp::Element* root, const xmlpp::Node* node) |
| 310 | { |
| 311 | const xmlpp::Element* element = dynamic_cast<const xmlpp::Element*>(node); |
| 312 | if (!element) return; |
| 313 | |
| 314 | const xmlpp::Attribute* attributes = element->get_attribute("attributes"); |
| 315 | const xmlpp::Attribute* name = element->get_attribute("name"); |
| 316 | const xmlpp::Attribute* mangled = element->get_attribute("mangled"); |
| 317 | const xmlpp::Attribute* returns = element->get_attribute("returns"); |
| 318 | if ((!attributes)||(!name)||(!mangled)||(!returns)) return; |
| 319 | |
| 320 | // check wether the procedure is marked (TODO: improve) |
| 321 | // attributes are speparated by spaces? |
| 322 | |
| 323 | t2n_procedure f; |
| 324 | if (!is_marked(attributes->get_value())) return; |
| 325 | |
| 326 | // we need the return type |
| 327 | f.ret_type=get_type(root, returns->get_value()); |
| 328 | f.name=name->get_value(); |
| 329 | f.mangled=mangled->get_value(); |
| 330 | |
| 331 | xmlpp::Node::NodeList list = node->get_children("Argument"); |
| 332 | for (xmlpp::Node::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter) |
| 333 | { |
| 334 | const xmlpp::Element* arg = dynamic_cast<const xmlpp::Element*>(*iter); |
| 335 | if ( arg ) |
| 336 | { |
| 337 | struct Arg a; |
| 338 | |
| 339 | assert(arg->get_name() == "Argument"); |
| 340 | |
| 341 | assert(arg->get_attribute("name")); |
| 342 | a.name=arg->get_attribute("name")->get_value(); |
| 343 | |
| 344 | assert(arg->get_attribute("type")); |
| 345 | a.type=get_type(root, arg->get_attribute("type")->get_value()); |
| 346 | |
| 347 | // this would be the nice way of solving the problem of default arguments |
| 348 | // but currently the output of gccxml is unreliable (e.g. namespace only |
| 349 | // sometimes available) |
| 350 | // if(arg->get_attribute("default")) |
| 351 | // a.defaultArg=arg->get_attribute("default")->get_value(); |
| 352 | |
| 353 | // so we need to get the def. arg. via attribute |
| 354 | // which is previously set by the macro LIBT2N_DEFAULT_ARG(type,value) |
| 355 | if(arg->get_attribute("attributes")) |
| 356 | { |
| 357 | std::string attr=arg->get_attribute("attributes")->get_value(); |
| 358 | const std::string look_for = "gccxml(libt2n-default-arg,"; |
| 359 | |
| 360 | if (attr.compare(0,look_for.size(),look_for) == 0) |
| 361 | a.defaultArg=attr.substr(look_for.size(),attr.size()-look_for.size()-1); |
| 362 | } |
| 363 | |
| 364 | // todo: ugly - could be any other error |
| 365 | if (a.type.name.empty()) |
| 366 | { |
| 367 | assert(element->get_attribute("file")); |
| 368 | assert(element->get_attribute("line")); |
| 369 | std::pair<std::string, unsigned> file_and_line(get_file_and_line(root, element)); |
| 370 | throw parse_error(file_and_line.first, |
| 371 | file_and_line.second, |
| 372 | std::string("type of parameter '")+a.name+"' not (yet?) supported"); |
| 373 | } |
| 374 | |
| 375 | f.args.push_back(a); |
| 376 | } |
| 377 | } |
| 378 | std::cerr << get_file_and_line_as_string(root, element) << ":\texport procedure: " << f << std::endl; |
| 379 | m_procedures.push_back(f); |
| 380 | } |
| 381 | |
| 382 | void visit_node(const xmlpp::Element* root, const xmlpp::Node* node = NULL, unsigned int indentation = 0) |
| 383 | { |
| 384 | if (!node) node=root; |
| 385 | |
| 386 | const xmlpp::ContentNode* nodeContent = dynamic_cast<const xmlpp::ContentNode*>(node); |
| 387 | const xmlpp::TextNode* nodeText = dynamic_cast<const xmlpp::TextNode*>(node); |
| 388 | const xmlpp::CommentNode* nodeComment = dynamic_cast<const xmlpp::CommentNode*>(node); |
| 389 | |
| 390 | if (nodeText && nodeText->is_white_space()) //Let's ignore the indenting - you don't always want to do this. |
| 391 | return; |
| 392 | |
| 393 | std::string nodename = node->get_name(); |
| 394 | |
| 395 | if (!nodeText && !nodeComment && !nodename.empty()) //Let's not say "name: text". |
| 396 | { |
| 397 | if (node->get_name() == "Function") parse_function(root, node); |
| 398 | } |
| 399 | if (!nodeContent) |
| 400 | { |
| 401 | //Recurse through child nodes: |
| 402 | xmlpp::Node::NodeList list = node->get_children(); |
| 403 | for (xmlpp::Node::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter) |
| 404 | { |
| 405 | visit_node(root, *iter, indentation + 2); //recursive |
| 406 | } |
| 407 | } |
| 408 | } |
| 409 | }; |
| 410 | |
| 411 | void output_common_hpp(std::ostream &o, const std::string &group, const std::list<t2n_procedure> &procs) |
| 412 | { |
| 413 | o << "class " << groupClass(group) << " : public libt2n::command\n" |
| 414 | << "{\n" |
| 415 | << "private:\n" |
| 416 | << " friend class boost::serialization::access;\n" |
| 417 | << " template<class Archive>\n" |
| 418 | << " void serialize(Archive & ar, const unsigned int /* version */)\n" |
| 419 | << " {ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(libt2n::command);}\n" |
| 420 | << "};\n"; |
| 421 | |
| 422 | for (std::list<t2n_procedure>::const_iterator it=procs.begin();it!=procs.end();++it) |
| 423 | { |
| 424 | o << "class " << it->ret_classname() << " : public libt2n::result\n" |
| 425 | << "{\n" |
| 426 | << "private:\n"; |
| 427 | if (it->hasReturn()) |
| 428 | o << " " << it->ret_type << " res;\n"; |
| 429 | o << " friend class boost::serialization::access;\n" |
| 430 | << " template<class Archive>\n" |
| 431 | << " void serialize(Archive & ar, const unsigned int /* version */)\n" |
| 432 | << " {\n" |
| 433 | << " ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(libt2n::result);\n"; |
| 434 | if (it->hasReturn()) |
| 435 | o << " ar & BOOST_SERIALIZATION_NVP(res);\n"; |
| 436 | o << " }\n" |
| 437 | << "public:\n" |
| 438 | << " " << it->ret_classname() << "() {}\n"; |
| 439 | if (it->hasReturn()) |
| 440 | { |
| 441 | o << " " << it->ret_classname() << "(const " << it->ret_type << " &_res) : res(_res) {}\n" |
| 442 | << " " << it->ret_type << " get_data() { return res; }\n"; |
| 443 | } |
| 444 | o << "};\n"; |
| 445 | } |
| 446 | for (std::list<t2n_procedure>::const_iterator it=procs.begin();it!=procs.end();++it) |
| 447 | { |
| 448 | o << "class " << it->cmd_classname() << " : public " << groupClass(group) << "\n" |
| 449 | << "{\n" |
| 450 | << "private:\n"; |
| 451 | for (t2n_procedure::Args::const_iterator ait=it->args.begin();ait!=it->args.end();++ait) |
| 452 | { |
| 453 | o << " " << ait->type.noref() << " " << ait->name << ";\n"; |
| 454 | } |
| 455 | o << " friend class boost::serialization::access;\n" |
| 456 | << " template<class Archive>\n" |
| 457 | << " void serialize(Archive & ar, const unsigned int /* version */)\n" |
| 458 | << " {\n" |
| 459 | << " ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(" << groupClass(group) << ");\n"; |
| 460 | for (t2n_procedure::Args::const_iterator ait=it->args.begin();ait!=it->args.end();++ait) |
| 461 | { |
| 462 | o << " ar & BOOST_SERIALIZATION_NVP(" << ait->name << ");\n"; |
| 463 | } |
| 464 | |
| 465 | // default constructor |
| 466 | o << " }\n" |
| 467 | << "\n" |
| 468 | << "public:\n" |
| 469 | << " " << it->cmd_classname() << "() {}\n"; |
| 470 | |
| 471 | // constructor taking all arguments |
| 472 | if (!it->args.empty()) |
| 473 | { |
| 474 | o << " " << it->cmd_classname() << "("; |
| 475 | for (t2n_procedure::Args::const_iterator ait=it->args.begin();ait!=it->args.end();++ait) |
| 476 | { |
| 477 | if (ait!=it->args.begin()) o << ", "; |
| 478 | o << ait->type << " _" << ait->name; |
| 479 | } |
| 480 | o << ") : "; |
| 481 | for (t2n_procedure::Args::const_iterator ait=it->args.begin();ait!=it->args.end();++ait) |
| 482 | { |
| 483 | if (ait!=it->args.begin()) o << ", "; |
| 484 | // pointers are const pointers and must be dereferenced |
| 485 | o << ait->name << "(" << ((ait->type.name.find_first_of('*')!=std::string::npos) ? "*" : "" ) << "_" << ait->name << ")"; |
| 486 | } |
| 487 | o << " {}\n"; |
| 488 | } |
| 489 | o << " libt2n::result* operator()();\n" |
| 490 | << "};\n"; |
| 491 | } |
| 492 | } |
| 493 | |
| 494 | void output_common_cpp(std::ostream &o, const std::string &group, const std::list<t2n_procedure> &procs, const std::string &common_hpp) |
| 495 | { |
| 496 | o << "#include \"" << common_hpp << "\"\n" |
| 497 | << "#include <boost/serialization/export.hpp>\n" |
| 498 | << "\n" |
| 499 | << "/* register types with boost serialization */\n"; |
| 500 | o << "BOOST_CLASS_EXPORT(" << groupClass(group) << ")\n"; |
| 501 | for (std::list<t2n_procedure>::const_iterator it=procs.begin();it!=procs.end();++it) |
| 502 | { |
| 503 | o << "BOOST_CLASS_EXPORT("<<it->ret_classname()<<")\n" |
| 504 | << "BOOST_CLASS_EXPORT("<<it->cmd_classname()<<")\n"; |
| 505 | } |
| 506 | } |
| 507 | |
| 508 | void output_client_hpp(std::ostream &o, const std::string &group, const std::list<t2n_procedure> &procs) |
| 509 | { |
| 510 | o << "#include <command_client.hxx>\n"; |
| 511 | |
| 512 | o << "class " << groupClass(group) << "_client : public libt2n::command_client\n" |
| 513 | << "{\n" |
| 514 | << "public:\n" |
| 515 | << groupClass(group) << "_client(libt2n::client_connection *_c,\n" |
| 516 | << " long long _command_timeout_usec=command_timeout_usec_default,\n" |
| 517 | << " long long _hello_timeout_usec=hello_timeout_usec_default)\n" |
| 518 | << " : libt2n::command_client(_c,_command_timeout_usec,_hello_timeout_usec)\n" |
| 519 | << " {}\n"; |
| 520 | for (std::list<t2n_procedure>::const_iterator pit=procs.begin();pit!=procs.end();++pit) |
| 521 | { |
| 522 | o << " " << *pit << ";\n"; |
| 523 | } |
| 524 | o << "};\n"; |
| 525 | } |
| 526 | |
| 527 | void output_client_cpp(std::ostream &o, const std::string &group, const std::list<t2n_procedure> &procs, const std::string &common_hpp, const std::string &common_cpp, const std::string &client_hpp) |
| 528 | { |
| 529 | o << "#include \"" << client_hpp << "\"\n" |
| 530 | << "#include \"" << common_hpp << "\"\n" |
| 531 | << "// fake\n"; |
| 532 | for (std::list<t2n_procedure>::const_iterator it=procs.begin();it!=procs.end();++it) |
| 533 | { |
| 534 | o << "libt2n::result* " << it->cmd_classname() << "::operator()() { return NULL; }\n"; |
| 535 | } |
| 536 | |
| 537 | for (std::list<t2n_procedure>::const_iterator pit=procs.begin();pit!=procs.end();++pit) |
| 538 | { |
| 539 | o << pit->ret_type << " " << groupClass(group) << "_client::" << pit->name << "("; |
| 540 | |
| 541 | // we need to do this by hand here because we don't want default arguments within the cpp |
| 542 | for (t2n_procedure::Args::const_iterator xit=pit->args.begin();xit!=pit->args.end();++xit) |
| 543 | { |
| 544 | if (xit!=pit->args.begin()) |
| 545 | o << ", "; |
| 546 | o << xit->type << " " << xit->name; |
| 547 | } |
| 548 | |
| 549 | o << ")\n" |
| 550 | << "{\n" |
| 551 | << " libt2n::result_container rc;\n" |
| 552 | << " send_command(new " << pit->cmd_classname() << "("; |
| 553 | for (t2n_procedure::Args::const_iterator ait=pit->args.begin();ait!=pit->args.end();++ait) |
| 554 | { |
| 555 | if (ait!=pit->args.begin()) o << ", "; |
| 556 | o << ait->name; |
| 557 | } |
| 558 | o << "), rc);\n" |
| 559 | << " " << pit->ret_classname() << "* res=dynamic_cast<" << pit->ret_classname() << "*>(rc.get_result());\n" |
| 560 | << " if (!res) throw libt2n::t2n_communication_error(\"result object of wrong type\");\n"; |
| 561 | if (pit->hasReturn()) |
| 562 | o << " return res->get_data();\n"; |
| 563 | o << "}\n"; |
| 564 | } |
| 565 | |
| 566 | // include in this compilation unit to ensure the compilation unit is used |
| 567 | // see also: |
| 568 | // http://www.google.de/search?q=g%2B%2B+static+initializer+in+static+library |
| 569 | o << "#include \"" << common_cpp << "\"\n"; |
| 570 | } |
| 571 | |
| 572 | void output_server_hpp(std::ostream &o, const std::string & /* group */, const std::list<t2n_procedure> &procs, const std::string &common_hpp) |
| 573 | { |
| 574 | o << "#include \"" << common_hpp << "\"\n"; |
| 575 | |
| 576 | // output function declarations |
| 577 | for (std::list<t2n_procedure>::const_iterator it=procs.begin();it!=procs.end();++it) |
| 578 | o << *it << ";\n"; |
| 579 | } |
| 580 | |
| 581 | void output_server_cpp(std::ostream &o, const std::string &group, const std::list<t2n_procedure> &procs, const std::string &common_hpp, const std::string &common_cpp) |
| 582 | { |
| 583 | o << "#include \"" << common_hpp << "\"\n"; |
| 584 | |
| 585 | for (std::list<t2n_procedure>::const_iterator it=procs.begin();it!=procs.end();++it) |
| 586 | { |
| 587 | o << *it << ";\n"; |
| 588 | o << "libt2n::result* " << it->cmd_classname() << "::operator()() { "; |
| 589 | |
| 590 | if (it->hasReturn()) |
| 591 | o << "return new " << it->ret_classname() << "("; |
| 592 | |
| 593 | // output function name and args |
| 594 | o << it->name << "("; |
| 595 | for (t2n_procedure::Args::const_iterator ait=it->args.begin();ait!=it->args.end();++ait) |
| 596 | { |
| 597 | if (ait!=it->args.begin()) o << ", "; |
| 598 | // get pointer |
| 599 | if (ait->type.name.find_first_of('*')!=std::string::npos) |
| 600 | o << '&'; |
| 601 | o << ait->name; |
| 602 | } |
| 603 | |
| 604 | if (it->hasReturn()) |
| 605 | o << "));"; |
| 606 | else |
| 607 | o << "); return new " << it->ret_classname() << "();"; |
| 608 | |
| 609 | o << " }\n"; |
| 610 | } |
| 611 | o << "#include \"" << common_cpp << "\"\n"; |
| 612 | } |
| 613 | |
| 614 | struct header_file : public std::ofstream |
| 615 | { |
| 616 | header_file(const char* fname) : std::ofstream(fname) |
| 617 | { |
| 618 | std::cerr << "create header: '" << fname << "'" << std::endl; |
| 619 | std::string macro(replace(toupper(fname),'.','_')); |
| 620 | *this << "// automatically generated code (generated by libt2n-codegen " << VERSION << ") - do not edit\n" << std::endl; |
| 621 | *this << "#ifndef " << macro << "\n" |
| 622 | << "#define " << macro << "\n"; |
| 623 | } |
| 624 | ~header_file() |
| 625 | { |
| 626 | *this << "#endif" << std::endl; |
| 627 | } |
| 628 | }; |
| 629 | |
| 630 | struct cpp_file : public std::ofstream |
| 631 | { |
| 632 | cpp_file(const char* fname) : std::ofstream(fname) |
| 633 | { |
| 634 | std::cerr << "create cpp: '" << fname << "'" << std::endl; |
| 635 | *this << "// automatically generated code - do not edit\n" << std::endl; |
| 636 | } |
| 637 | }; |
| 638 | |
| 639 | int |
| 640 | main(int argc, char* argv[]) |
| 641 | { |
| 642 | // todo: maybe use getopt |
| 643 | if ((argc>1)&&(std::string(argv[1])=="--version")) |
| 644 | { |
| 645 | std::cerr << VERSION << std::endl; |
| 646 | return 0; |
| 647 | } |
| 648 | if (argc < 3) |
| 649 | { |
| 650 | std::cerr << "Usage: " << argv[0] << "default-group gccxml-file1 gccxml-file2 ... " << std::endl; |
| 651 | return 1; |
| 652 | } |
| 653 | |
| 654 | try |
| 655 | { |
| 656 | std::string group(argv[1]); |
| 657 | std::list<std::string> xmlfiles; |
| 658 | for (int i=2;i<argc;++i) |
| 659 | xmlfiles.push_back(argv[i]); |
| 660 | |
| 661 | std::string prefix=group+"_"; |
| 662 | std::list<t2n_procedure> procedures; |
| 663 | for (std::list<std::string>::iterator it=xmlfiles.begin();it!=xmlfiles.end();++it) |
| 664 | { |
| 665 | std::cerr << "Parse " << *it << std::endl; |
| 666 | Parser parser(*it); |
| 667 | const std::list<t2n_procedure> &p(parser.get_procedures()); |
| 668 | std::copy(p.begin(), p.end(), std::back_inserter(procedures)); |
| 669 | } |
| 670 | |
| 671 | std::cerr << "All procedures:" << std::endl; |
| 672 | for (std::list<t2n_procedure>::const_iterator it=procedures.begin();it!=procedures.end();++it) |
| 673 | std::cerr << *it << ";" << std::endl; |
| 674 | |
| 675 | std::string common_hpp_fname(prefix+"common.hxx"); |
| 676 | std::string common_cpp_fname(prefix+"common.cpp"); |
| 677 | std::string client_hpp_fname(prefix+"client.hxx"); |
| 678 | std::string client_cpp_fname(prefix+"client.cpp"); |
| 679 | std::string server_hpp_fname(prefix+"server.hxx"); |
| 680 | std::string server_cpp_fname(prefix+"server.cpp"); |
| 681 | |
| 682 | header_file common_hpp(common_hpp_fname.c_str()); |
| 683 | common_hpp << "// boost serialization is picky about order of include files => we have to include this one first\n" |
| 684 | << "#include \"codegen-stubhead.hxx\"\n" |
| 685 | << "#include \"" << group << ".hxx\"\n"; |
| 686 | |
| 687 | output_common_hpp(common_hpp, group, procedures); |
| 688 | |
| 689 | cpp_file common_cpp(common_cpp_fname.c_str()); |
| 690 | output_common_cpp(common_cpp, group, procedures, common_hpp_fname); |
| 691 | |
| 692 | header_file client_hpp(client_hpp_fname.c_str()); |
| 693 | client_hpp << "// boost serialization is picky about order of include files => we have to include this one first\n" |
| 694 | << "#include \"codegen-stubhead.hxx\"\n" |
| 695 | << "#include \"" << group << ".hxx\"\n"; |
| 696 | output_client_hpp(client_hpp, group, procedures); |
| 697 | |
| 698 | cpp_file client_cpp(client_cpp_fname.c_str()); |
| 699 | output_client_cpp(client_cpp, group, procedures, common_hpp_fname, common_cpp_fname, client_hpp_fname); |
| 700 | |
| 701 | header_file server_hpp(server_hpp_fname.c_str()); |
| 702 | output_server_hpp(server_hpp, group, procedures, common_hpp_fname); |
| 703 | |
| 704 | cpp_file server_cpp(server_cpp_fname.c_str()); |
| 705 | output_server_cpp(server_cpp, group, procedures, common_hpp_fname, common_cpp_fname); |
| 706 | } |
| 707 | catch (const parse_error &e) |
| 708 | { |
| 709 | std::cerr << e.what() << std::endl; |
| 710 | return EXIT_FAILURE; |
| 711 | } |
| 712 | return EXIT_SUCCESS; |
| 713 | } |