#include <libxml++/libxml++.h>
#include <cassert>
#include <iostream>
+#include <set>
+#include <fstream>
void print_indentation(unsigned int indentation)
{
// TODO: not yet complete
// if we recurse - when do we stop?
// if it is a typedef? yes? (hmm if the typedef is in the file parsed this will not work)
+
+ // TODO: const and reference types (perhaps it is good enough to remove the const and &?)
+ // non-const reference types/pointers (output error message? not yet supported)
+
std::string tag(element->get_name());
if (tag=="ReferenceType") {
assert(element->get_attribute("type"));
return get_namespace(root, element->get_attribute("context")->get_value())+"::"+element->get_attribute("name")->get_value();
}
-void parse_function(const xmlpp::Element* root, const xmlpp::Node* node, unsigned int indentation = 0) {
- const xmlpp::Element* element = dynamic_cast<const xmlpp::Element*>(node);
- if (!element) return;
+struct t2n_procedure
+{
+ typedef std::map<std::string, std::string> Args;
- const xmlpp::Attribute* attributes = element->get_attribute("attributes");
- const xmlpp::Attribute* name = element->get_attribute("name");
- const xmlpp::Attribute* returns = element->get_attribute("returns");
- if ((!attributes)||(!name)||(!returns)) return;
+ std::string group;
+ std::string ret_type;
+ std::string name;
+ Args args;
- // check wether the function is marked (TODO: improve)
- if (attributes->get_value().find("gccxml(libt2n")==std::string::npos) return;
+ std::string ret_classname() const {
+ return name+"_res";
+ }
+ std::string cmd_classname() const {
+ return name+"_cmd";
+ }
+};
- // TODO: extract command group
- // something like: sed 's,gccxml(libt2n-\([a-z]*}),\1,'
+std::ostream &operator<<(std::ostream &o, const t2n_procedure::Args &args) {
+ for (t2n_procedure::Args::const_iterator it=args.begin();it!=args.end();++it) {
+ if (it!=args.begin()) o << ", ";
+ o << it->second << " " << it->first;
+ }
+ return o;
+}
- // we need the return type
- std::string ret_type(get_type(root, returns->get_value()));
+std::ostream &operator<<(std::ostream &o, const t2n_procedure &f) {
+ o << f.ret_type << " " << f.name << "(" << f.args << ")";
+ return o;
+}
- // and the argument types
- typedef std::map<std::string, std::string> Args;
- Args args;
+class Parser
+{
+public:
+ Parser(const std::string &fname) : m_fname(fname) {}
- xmlpp::Node::NodeList list = node->get_children("Argument");
- for(xmlpp::Node::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
- {
- const xmlpp::Element* arg = dynamic_cast<const xmlpp::Element*>(*iter);
- if ( arg ) {
- assert(arg->get_name() == "Argument");
- assert(arg->get_attribute("name"));
- assert(arg->get_attribute("type"));
- assert(args.find(arg->get_attribute("name")->get_value())==args.end());
- args[arg->get_attribute("name")->get_value()]=get_type(root, arg->get_attribute("type")->get_value());
+ std::list<t2n_procedure> get_procedures() {
+ xmlpp::DomParser parser;
+ // parser.set_validate();
+ parser.set_substitute_entities(); //We just want the text to be resolved/unescaped automatically.
+ parser.parse_file(m_fname);
+ if(parser)
+ {
+ //Walk the tree:
+ const xmlpp::Node* pNode = parser.get_document()->get_root_node(); //deleted by DomParser.
+ const xmlpp::Element* root = dynamic_cast<const xmlpp::Element*>(pNode);
+ assert(root);
+ visit_node(root);
}
+ return m_procedures;
}
+protected:
+ std::string m_fname;
+ std::list<t2n_procedure> m_procedures;
+
+ void parse_function(const xmlpp::Element* root, const xmlpp::Node* node) {
+ const xmlpp::Element* element = dynamic_cast<const xmlpp::Element*>(node);
+ if (!element) return;
+
+ const xmlpp::Attribute* attributes = element->get_attribute("attributes");
+ const xmlpp::Attribute* name = element->get_attribute("name");
+ const xmlpp::Attribute* returns = element->get_attribute("returns");
+ if ((!attributes)||(!name)||(!returns)) return;
+
+ // check wether the procedure is marked (TODO: improve)
+ // attributes are speparated by spaces?
+ if (attributes->get_value().find("gccxml(libt2n")==std::string::npos) return;
+
+ // TODO: extract command group
+ // something like: sed 's,gccxml(libt2n-\([a-z]*}),\1,'
+ t2n_procedure f;
+ f.group=("default");
- std::cerr << "Found marked Function: " << ret_type << " " << name->get_value() << "(";
- for (Args::const_iterator it=args.begin();it!=args.end();++it) {
- if (it!=args.begin()) std::cerr << ", ";
- std::cerr << it->second << " " << it->first;
+ // we need the return type
+ f.ret_type=get_type(root, returns->get_value());
+ f.name=name->get_value();
+
+ xmlpp::Node::NodeList list = node->get_children("Argument");
+ for(xmlpp::Node::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ const xmlpp::Element* arg = dynamic_cast<const xmlpp::Element*>(*iter);
+ if ( arg ) {
+ assert(arg->get_name() == "Argument");
+ assert(arg->get_attribute("name"));
+ assert(arg->get_attribute("type"));
+ assert(f.args.find(arg->get_attribute("name")->get_value())==f.args.end());
+ f.args[arg->get_attribute("name")->get_value()]=get_type(root, arg->get_attribute("type")->get_value());
+ }
+ }
+ m_procedures.push_back(f);
}
- std::cerr << ");" << std::endl;
-}
-void print_node(const xmlpp::Element* root, const xmlpp::Node* node = NULL, unsigned int indentation = 0)
-{
- if (!node) node=root;
- std::cout << std::endl; //Separate nodes by an empty line.
-
- const xmlpp::ContentNode* nodeContent = dynamic_cast<const xmlpp::ContentNode*>(node);
- const xmlpp::TextNode* nodeText = dynamic_cast<const xmlpp::TextNode*>(node);
- const xmlpp::CommentNode* nodeComment = dynamic_cast<const xmlpp::CommentNode*>(node);
+ void visit_node(const xmlpp::Element* root, const xmlpp::Node* node = NULL, unsigned int indentation = 0)
+ {
+ if (!node) node=root;
+ std::cout << std::endl; //Separate nodes by an empty line.
+
+ const xmlpp::ContentNode* nodeContent = dynamic_cast<const xmlpp::ContentNode*>(node);
+ const xmlpp::TextNode* nodeText = dynamic_cast<const xmlpp::TextNode*>(node);
+ const xmlpp::CommentNode* nodeComment = dynamic_cast<const xmlpp::CommentNode*>(node);
- if(nodeText && nodeText->is_white_space()) //Let's ignore the indenting - you don't always want to do this.
- return;
+ if(nodeText && nodeText->is_white_space()) //Let's ignore the indenting - you don't always want to do this.
+ return;
- std::string nodename = node->get_name();
+ std::string nodename = node->get_name();
- if(!nodeText && !nodeComment && !nodename.empty()) //Let's not say "name: text".
- {
- print_indentation(indentation);
- // std::cout << "Node name = " << node->get_name() << std::endl;
- // std::cout << "Node name = " << nodename << std::endl;
- if (node->get_name() == "Function") {
- parse_function(root, node, indentation);
+ if(!nodeText && !nodeComment && !nodename.empty()) //Let's not say "name: text".
+ {
+ print_indentation(indentation);
+ // std::cout << "Node name = " << node->get_name() << std::endl;
+ // std::cout << "Node name = " << nodename << std::endl;
+ if (node->get_name() == "Function") {
+ parse_function(root, node);
+ }
+ }
+ else if(nodeText) //Let's say when it's text. - e.g. let's say what that white space is.
+ {
+ print_indentation(indentation);
+ std::cout << "Text Node" << std::endl;
+ }
+
+ //Treat the various node types differently:
+ if(nodeText)
+ {
+ print_indentation(indentation);
+ std::cout << "text = \"" << nodeText->get_content() << "\"" << std::endl;
+ }
+ else if(nodeComment)
+ {
+ print_indentation(indentation);
+ std::cout << "comment = " << nodeComment->get_content() << std::endl;
+ }
+ else if(nodeContent)
+ {
+ print_indentation(indentation);
+ std::cout << "content = " << nodeContent->get_content() << std::endl;
+ }
+ else if(const xmlpp::Element* nodeElement = dynamic_cast<const xmlpp::Element*>(node))
+ {
+ //A normal Element node:
+
+ //line() works only for ElementNodes.
+ print_indentation(indentation);
+ std::cout << " line = " << node->get_line() << std::endl;
+
+ //Print attributes:
+ const xmlpp::Element::AttributeList& attributes = nodeElement->get_attributes();
+ for(xmlpp::Element::AttributeList::const_iterator iter = attributes.begin(); iter != attributes.end(); ++iter)
+ {
+ const xmlpp::Attribute* attribute = *iter;
+ print_indentation(indentation);
+ std::cout << " Attribute " << attribute->get_name() << " = " << attribute->get_value() << std::endl;
+ }
+
+ const xmlpp::Attribute* attribute = nodeElement->get_attribute("title");
+ if(attribute)
+ {
+ std::cout << "title found: =" << attribute->get_value() << std::endl;
+
+ }
+ }
+
+ if(!nodeContent)
+ {
+ //Recurse through child nodes:
+ xmlpp::Node::NodeList list = node->get_children();
+ for(xmlpp::Node::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ visit_node(root, *iter, indentation + 2); //recursive
+ }
+ }
}
+};
+
+//! find used groups
+std::set<std::string>
+used_groups(const std::list<t2n_procedure> &funcs) {
+ typedef std::set<std::string> Groups;
+ Groups groups;
+ for (std::list<t2n_procedure>::const_iterator it=funcs.begin();it!=funcs.end();++it)
+ // since we use std::set each group is inserted only once
+ groups.insert(it->group);
+ return groups;
+}
+
+void output_common_hpp(std::ostream &o, const std::list<t2n_procedure> &procs) {
+ std::set<std::string> groups(used_groups(procs));
+
+ o << "#include \"codegen-stubhead.hxx\"\n";
+ for (std::set<std::string>::iterator it=groups.begin();it!=groups.end();++it) {
+ o << "class cmd_group_" << *it << " : public libt2n::command\n"
+ << "{\n"
+ << "private:\n"
+ << " friend class boost::serialization::access;\n"
+ << " template<class Archive>\n"
+ << " void serialize(Archive & ar, const unsigned int version)\n"
+ << " {ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(libt2n::command);}\n"
+ << "};\n";
}
- else if(nodeText) //Let's say when it's text. - e.g. let's say what that white space is.
- {
- print_indentation(indentation);
- std::cout << "Text Node" << std::endl;
+
+ for (std::list<t2n_procedure>::const_iterator it=procs.begin();it!=procs.end();++it) {
+ o << "class " << it->ret_classname() << " : public libt2n::result\n"
+ << "{\n"
+ << "private:\n"
+ << " " << it->ret_type << " res;\n"
+ << " friend class boost::serialization::access;\n"
+ << " template<class Archive>\n"
+ << " void serialize(Archive & ar, const unsigned int version)\n"
+ << " {\n"
+ << " ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(libt2n::result);\n"
+ << " ar & BOOST_SERIALIZATION_NVP(res);\n"
+ << " }\n"
+ << "public:\n"
+ << " " << it->ret_classname() << "(const " << it->ret_type << " &_res) : res(_res) {}\n"
+ << " " << it->ret_type << " get_data() { return res; }\n"
+ << "};\n";
}
+ for (std::list<t2n_procedure>::const_iterator it=procs.begin();it!=procs.end();++it) {
+ o << "class " << it->cmd_classname() << " : public " << "cmd_group_" << it->group << "\n"
+ << "{\n"
+ << "private:\n";
+ for (t2n_procedure::Args::const_iterator ait=it->args.begin();ait!=it->args.end();++ait) {
+ o << " " << ait->second << " " << ait->first << ";\n";
+ }
+ o << " friend class boost::serialization::access;\n"
+ << " template<class Archive>\n"
+ << " void serialize(Archive & ar, const unsigned int version)\n"
+ << " {\n"
+ << " ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(cmd_group_" << it->group << ");\n";
+ for (t2n_procedure::Args::const_iterator ait=it->args.begin();ait!=it->args.end();++ait) {
+ o << " ar & BOOST_SERIALIZATION_NVP(" << ait->first << ");\n";
+ }
- //Treat the various node types differently:
- if(nodeText)
- {
- print_indentation(indentation);
- std::cout << "text = \"" << nodeText->get_content() << "\"" << std::endl;
+ // default constructor
+ o << " }\n"
+ << "\n"
+ << "public:\n"
+ << " " << it->cmd_classname() << "() {}\n";
+
+ // constructor taking all arguments
+ o << " " << it->cmd_classname() << "(";
+ for (t2n_procedure::Args::const_iterator ait=it->args.begin();ait!=it->args.end();++ait) {
+ if (ait!=it->args.begin()) o << ", ";
+ o << ait->second << " _" << ait->first;
+ }
+ o << ") : ";
+ for (t2n_procedure::Args::const_iterator ait=it->args.begin();ait!=it->args.end();++ait) {
+ if (ait!=it->args.begin()) o << ", ";
+ o << ait->first << "(_" << ait->first << ")";
+ }
+ o << " {}\n"
+ << " libt2n::result* operator()();\n"
+ << "};\n";
}
- else if(nodeComment)
- {
- print_indentation(indentation);
- std::cout << "comment = " << nodeComment->get_content() << std::endl;
+}
+
+void output_common_cpp(std::ostream &o, const std::list<t2n_procedure> &procs, const std::string &common_hpp) {
+ std::set<std::string> groups(used_groups(procs));
+
+ o << "#include \"" << common_hpp << "\"\n"
+ << "#include <boost/serialization/export.hxx>\n"
+ << "\n"
+ << "/* register types with boost serialization */\n";
+ for (std::set<std::string>::iterator it=groups.begin();it!=groups.end();++it) {
+ o << "BOOST_CLASS_EXPORT(cmd_group_" << *it << ")\n";
}
- else if(nodeContent)
- {
- print_indentation(indentation);
- std::cout << "content = " << nodeContent->get_content() << std::endl;
+ for (std::list<t2n_procedure>::const_iterator it=procs.begin();it!=procs.end();++it) {
+ o << "BOOST_CLASS_EXPORT("<<it->ret_classname()<<")\n"
+ << "BOOST_CLASS_EXPORT("<<it->cmd_classname()<<")\n";
}
- else if(const xmlpp::Element* nodeElement = dynamic_cast<const xmlpp::Element*>(node))
- {
- //A normal Element node:
+}
- //line() works only for ElementNodes.
- print_indentation(indentation);
- std::cout << " line = " << node->get_line() << std::endl;
+void output_client_hpp(std::ostream &o, const std::list<t2n_procedure> &procs) {
+ std::set<std::string> groups(used_groups(procs));
- //Print attributes:
- const xmlpp::Element::AttributeList& attributes = nodeElement->get_attributes();
- for(xmlpp::Element::AttributeList::const_iterator iter = attributes.begin(); iter != attributes.end(); ++iter)
- {
- const xmlpp::Attribute* attribute = *iter;
- print_indentation(indentation);
- std::cout << " Attribute " << attribute->get_name() << " = " << attribute->get_value() << std::endl;
+ o << "#include <command_client.hxx>\n";
+
+ for (std::set<std::string>::iterator it=groups.begin();it!=groups.end();++it) {
+ o << "class cmd_group_" << *it << "_client : public libt2n::command_client\n"
+ << "{\n"
+ << "public:\n"
+ << "cmd_group_" << *it << "_client(libt2n::client_connection &_c,\n"
+ << " long long _command_timeout_usec=command_timeout_usec_default,\n"
+ << " long long _hello_timeout_usec=hello_timeout_usec_default)\n"
+ << " : libt2n::command_client(_c,_command_timeout_usec,_hello_timeout_usec)\n"
+ << " {}\n";
+ for (std::list<t2n_procedure>::const_iterator pit=procs.begin();pit!=procs.end();++pit) {
+ if (pit->group==*it) {
+ o << " " << *pit << ";\n";
+ }
}
+ o << "};\n";
+ }
+}
- const xmlpp::Attribute* attribute = nodeElement->get_attribute("title");
- if(attribute)
- {
- std::cout << "title found: =" << attribute->get_value() << std::endl;
-
+void output_client_cpp(std::ostream &o, const std::list<t2n_procedure> &procs, const std::string &common_hpp, const std::string &common_cpp, const std::string &client_hpp) {
+ std::set<std::string> groups(used_groups(procs));
+
+ o << "#include \"" << client_hpp << "\"\n"
+ << "#include \"" << common_hpp << "\"\n"
+ << "// fake\n";
+ for (std::list<t2n_procedure>::const_iterator it=procs.begin();it!=procs.end();++it) {
+ o << "libt2n::result* " << it->cmd_classname() << "::operator()() { return NULL; }\n";
+ }
+
+ for (std::set<std::string>::iterator it=groups.begin();it!=groups.end();++it) {
+ for (std::list<t2n_procedure>::const_iterator pit=procs.begin();pit!=procs.end();++pit) {
+ if (pit->group==*it) {
+ o << pit->ret_type << " cmd_group_" << *it << "_client::" << pit->name << "(" << pit->args << ")\n"
+ << "{\n"
+ << " libt2n::result_container rc;\n"
+ << " send_command(new " << pit->cmd_classname() << "(";
+ for (t2n_procedure::Args::const_iterator ait=pit->args.begin();ait!=pit->args.end();++ait) {
+ if (ait!=pit->args.begin()) o << ", ";
+ o << ait->first;
+ }
+ o << "), rc);\n"
+ << " " << pit->ret_classname() << "* res=dynamic_cast<" << pit->ret_classname() << "*>(rc.get_result());\n"
+ << " if (!res) throw libt2n::t2n_communication_error(\"result object of wrong type\");\n"
+ << " return res->get_data();\n"
+ << "}\n";
+ }
}
}
-
- if(!nodeContent)
- {
- //Recurse through child nodes:
- xmlpp::Node::NodeList list = node->get_children();
- for(xmlpp::Node::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
- {
- print_node(root, *iter, indentation + 2); //recursive
+
+ // include in this compilation unit to ensure the compilation unit is used
+ // see also:
+ // http://www.google.de/search?q=g%2B%2B+static+initializer+in+static+library
+ o << "#include \"" << common_cpp << "\"\n";
+}
+
+void output_server_cpp(std::ostream &o, const std::list<t2n_procedure> &procs, const std::string &common_hpp, const std::string &common_cpp) {
+ o << "#include \"" << common_hpp << "\"\n";
+
+ for (std::list<t2n_procedure>::const_iterator it=procs.begin();it!=procs.end();++it) {
+ o << *it << ";\n";
+ o << "libt2n::result* " << it->cmd_classname() << "::operator()() { return new " << it->ret_classname() << "(" << it->name << "(";
+ for (t2n_procedure::Args::const_iterator ait=it->args.begin();ait!=it->args.end();++ait) {
+ if (ait!=it->args.begin()) o << ", ";
+ o << ait->first;
}
+ o << ")); }\n";
}
+ o << "#include \"" << common_cpp << "\"\n";
+}
+
+
+std::string
+toupper(std::string s) {
+ for (unsigned i=0; i<s.length(); ++i) s[i]=toupper(s[i]);
+ return s;
}
-int main(int argc, char* argv[])
+std::string
+replace(std::string s, char f, char r) {
+ for (unsigned i=0; i<s.length(); ++i) if (s[i]==f) s[i]=r;
+ return s;
+}
+
+struct header_file : public std::ofstream
+{
+ header_file(const char* fname) : std::ofstream(fname) {
+ std::cerr << "create header: '" << fname << "'" << std::endl;
+ std::string macro(replace(toupper(fname),'.','_'));
+ *this << "// automatically generated code - do not edit\n" << std::endl;
+ *this << "#ifndef " << macro << "\n"
+ << "#define " << macro << "\n";
+ }
+ ~header_file() {
+ *this << "#endif" << std::endl;
+ }
+};
+
+struct cpp_file : public std::ofstream
+{
+ cpp_file(const char* fname) : std::ofstream(fname) {
+ std::cerr << "create cpp: '" << fname << "'" << std::endl;
+ *this << "// automatically generated code - do not edit\n" << std::endl;
+ }
+};
+
+int
+main(int argc, char* argv[])
{
std::string filepath;
if(argc > 1 )
else
filepath = "example.xml";
- try
- {
- xmlpp::DomParser parser;
- // parser.set_validate();
- parser.set_substitute_entities(); //We just want the text to be resolved/unescaped automatically.
- parser.parse_file(filepath);
- if(parser)
- {
- //Walk the tree:
- const xmlpp::Node* pNode = parser.get_document()->get_root_node(); //deleted by DomParser.
- const xmlpp::Element* root = dynamic_cast<const xmlpp::Element*>(pNode);
- assert(root);
- print_node(root);
- }
- }
- catch(const std::exception& ex)
- {
- std::cout << "Exception caught: " << ex.what() << std::endl;
- }
+ Parser parser(filepath);
+ std::list<t2n_procedure> procedures(parser.get_procedures());
+
+ std::cerr << "Procedures:" << std::endl;
+ for (std::list<t2n_procedure>::const_iterator it=procedures.begin();it!=procedures.end();++it)
+ std::cerr << *it << ";" << std::endl;
+
+ std::set<std::string> groups(used_groups(procedures));
+ std::cerr << "Used groups:" << std::endl;
+ for (std::set<std::string>::const_iterator it=groups.begin();it!=groups.end();++it)
+ std::cerr << *it << std::endl;
+
+ std::string prefix("test_");
+ std::string common_hpp_fname(prefix+"common.hxx");
+ std::string common_cpp_fname(prefix+"common.cpp");
+ std::string client_hpp_fname(prefix+"client.hxx");
+ std::string client_cpp_fname(prefix+"client.cpp");
+ std::string server_cpp_fname(prefix+"client.cpp");
+
+ header_file common_hpp(common_hpp_fname.c_str());
+ output_common_hpp(common_hpp, procedures);
+
+ cpp_file common_cpp(common_cpp_fname.c_str());
+ output_common_cpp(common_cpp, procedures, "common-stub.hxx");
+
+ header_file client_hpp(client_hpp_fname.c_str());
+ output_client_hpp(client_hpp, procedures);
+
+ cpp_file client_cpp(client_cpp_fname.c_str());
+ output_client_cpp(client_cpp, procedures, common_hpp_fname, common_cpp_fname, client_hpp_fname);
+ cpp_file server_cpp(server_cpp_fname.c_str());
+ output_server_cpp(server_cpp, procedures, common_hpp_fname, common_cpp_fname);
return 0;
}
git://developer.intra2net.com / libt2n / blobdiff