gtsam/wrap/Class.cpp

882 lines
36 KiB
C++

/* ----------------------------------------------------------------------------
* GTSAM Copyright 2010, Georgia Tech Research Corporation,
* Atlanta, Georgia 30332-0415
* All Rights Reserved
* Authors: Frank Dellaert, et al. (see THANKS for the full author list)
* See LICENSE for the license information
* -------------------------------------------------------------------------- */
/**
* @file Class.cpp
* @author Frank Dellaert
* @author Andrew Melim
* @author Richard Roberts
**/
#include "Class.h"
#include "utilities.h"
#include "Argument.h"
#include <unordered_set>
#include <boost/lexical_cast.hpp>
#include <boost/range/adaptor/map.hpp>
#include <boost/range/algorithm/copy.hpp>
#include <boost/tuple/tuple.hpp>
#include <boost/iterator/zip_iterator.hpp>
#include <boost/range/combine.hpp>
#include <boost/range/algorithm/remove_if.hpp>
#include <vector>
#include <iostream>
#include <fstream>
#include <sstream>
#include <iterator> // std::ostream_iterator
//#include <cstdint> // on Linux GCC: fails with error regarding needing C++0x std flags
//#include <cinttypes> // same failure as above
#include <stdint.h> // works on Linux GCC
using namespace std;
using namespace wrap;
/* ************************************************************************* */
void Class::assignParent(const Qualified& parent) {
parentClass.reset(parent);
}
/* ************************************************************************* */
boost::optional<string> Class::qualifiedParent() const {
boost::optional<string> result = boost::none;
if (parentClass)
result = parentClass->qualifiedName("::");
return result;
}
/* ************************************************************************* */
static void handleException(const out_of_range& oor,
const Class::Methods& methods) {
cerr << "Class::method: key not found: " << oor.what() << ", methods are:\n";
using boost::adaptors::map_keys;
ostream_iterator<string> out_it(cerr, "\n");
boost::copy(methods | map_keys, out_it);
}
/* ************************************************************************* */
// Method& Class::mutableMethod(Str key) {
// try {
// return methods_.at(key);
// } catch (const out_of_range& oor) {
// handleException(oor, methods_);
// throw runtime_error("Internal error in wrap");
// }
// }
/* ************************************************************************* */
const Method& Class::method(Str key) const {
try {
return methods_.at(key);
} catch (const out_of_range& oor) {
handleException(oor, methods_);
throw runtime_error("Internal error in wrap");
}
}
/* ************************************************************************* */
void Class::matlab_proxy(Str toolboxPath, Str wrapperName,
const TypeAttributesTable& typeAttributes, FileWriter& wrapperFile,
vector<string>& functionNames) const {
// Create namespace folders
createNamespaceStructure(namespaces(), toolboxPath);
// open destination classFile
string classFile = matlabName(toolboxPath);
FileWriter proxyFile(classFile, verbose_, "%");
// get the name of actual matlab object
const string matlabQualName = qualifiedName(".");
const string matlabUniqueName = qualifiedName();
const string cppName = qualifiedName("::");
// emit class proxy code
// we want our class to inherit the handle class for memory purposes
const string parent =
parentClass ? parentClass->qualifiedName(".") : "handle";
comment_fragment(proxyFile);
proxyFile.oss << "classdef " << name() << " < " << parent << endl;
proxyFile.oss << " properties\n";
proxyFile.oss << " ptr_" << matlabUniqueName << " = 0\n";
proxyFile.oss << " end\n";
proxyFile.oss << " methods\n";
// Constructor
proxyFile.oss << " function obj = " << name() << "(varargin)\n";
// Special pointer constructors - one in MATLAB to create an object and
// assign a pointer returned from a C++ function. In turn this MATLAB
// constructor calls a special C++ function that just adds the object to
// its collector. This allows wrapped functions to return objects in
// other wrap modules - to add these to their collectors the pointer is
// passed from one C++ module into matlab then back into the other C++
// module.
pointer_constructor_fragments(proxyFile, wrapperFile, wrapperName,
functionNames);
wrapperFile.oss << "\n";
// Regular constructors
boost::optional<string> cppBaseName = qualifiedParent();
for (size_t i = 0; i < constructor.nrOverloads(); i++) {
ArgumentList args = constructor.argumentList(i);
const int id = (int) functionNames.size();
constructor.proxy_fragment(proxyFile, wrapperName, (bool) parentClass, id,
args);
const string wrapFunctionName = constructor.wrapper_fragment(wrapperFile,
cppName, matlabUniqueName, cppBaseName, id, args);
wrapperFile.oss << "\n";
functionNames.push_back(wrapFunctionName);
}
proxyFile.oss << " else\n";
proxyFile.oss << " error('Arguments do not match any overload of "
<< matlabQualName << " constructor');\n";
proxyFile.oss << " end\n";
if (parentClass)
proxyFile.oss << " obj = obj@" << parentClass->qualifiedName(".")
<< "(uint64(" << ptr_constructor_key << "), base_ptr);\n";
proxyFile.oss << " obj.ptr_" << matlabUniqueName << " = my_ptr;\n";
proxyFile.oss << " end\n\n";
// Deconstructor
{
const int id = (int) functionNames.size();
deconstructor.proxy_fragment(proxyFile, wrapperName, matlabUniqueName, id);
proxyFile.oss << "\n";
const string functionName = deconstructor.wrapper_fragment(wrapperFile,
cppName, matlabUniqueName, id);
wrapperFile.oss << "\n";
functionNames.push_back(functionName);
}
proxyFile.oss
<< " function display(obj), obj.print(''); end\n %DISPLAY Calls print on the object\n";
proxyFile.oss
<< " function disp(obj), obj.display; end\n %DISP Calls print on the object\n";
// Methods
for(const Methods::value_type& name_m: methods_) {
const Method& m = name_m.second;
m.proxy_wrapper_fragments(proxyFile, wrapperFile, cppName, matlabQualName,
matlabUniqueName, wrapperName, typeAttributes, functionNames);
proxyFile.oss << "\n";
wrapperFile.oss << "\n";
}
if (hasSerialization)
serialization_fragments(proxyFile, wrapperFile, wrapperName, functionNames);
proxyFile.oss << " end\n";
proxyFile.oss << "\n";
proxyFile.oss << " methods(Static = true)\n";
// Static methods
for(const StaticMethods::value_type& name_m: static_methods) {
const StaticMethod& m = name_m.second;
m.proxy_wrapper_fragments(proxyFile, wrapperFile, cppName, matlabQualName,
matlabUniqueName, wrapperName, typeAttributes, functionNames);
proxyFile.oss << "\n";
wrapperFile.oss << "\n";
}
if (hasSerialization)
deserialization_fragments(proxyFile, wrapperFile, wrapperName,
functionNames);
proxyFile.oss << " end\n";
proxyFile.oss << "end\n";
// Close file
proxyFile.emit(true);
}
/* ************************************************************************* */
void Class::pointer_constructor_fragments(FileWriter& proxyFile,
FileWriter& wrapperFile, Str wrapperName,
vector<string>& functionNames) const {
const string matlabUniqueName = qualifiedName();
const string cppName = qualifiedName("::");
const int collectorInsertId = (int) functionNames.size();
const string collectorInsertFunctionName = matlabUniqueName
+ "_collectorInsertAndMakeBase_"
+ boost::lexical_cast<string>(collectorInsertId);
functionNames.push_back(collectorInsertFunctionName);
int upcastFromVoidId;
string upcastFromVoidFunctionName;
if (isVirtual) {
upcastFromVoidId = (int) functionNames.size();
upcastFromVoidFunctionName = matlabUniqueName + "_upcastFromVoid_"
+ boost::lexical_cast<string>(upcastFromVoidId);
functionNames.push_back(upcastFromVoidFunctionName);
}
// MATLAB constructor that assigns pointer to matlab object then calls c++
// function to add the object to the collector.
if (isVirtual) {
proxyFile.oss
<< " if (nargin == 2 || (nargin == 3 && strcmp(varargin{3}, 'void')))";
} else {
proxyFile.oss << " if nargin == 2";
}
proxyFile.oss << " && isa(varargin{1}, 'uint64') && varargin{1} == uint64("
<< ptr_constructor_key << ")\n";
if (isVirtual) {
proxyFile.oss << " if nargin == 2\n";
proxyFile.oss << " my_ptr = varargin{2};\n";
proxyFile.oss << " else\n";
proxyFile.oss << " my_ptr = " << wrapperName << "("
<< upcastFromVoidId << ", varargin{2});\n";
proxyFile.oss << " end\n";
} else {
proxyFile.oss << " my_ptr = varargin{2};\n";
}
if (!parentClass) // If this class has a base class, we'll get a base class pointer back
proxyFile.oss << " ";
else
proxyFile.oss << " base_ptr = ";
proxyFile.oss << wrapperName << "(" << collectorInsertId << ", my_ptr);\n"; // Call collector insert and get base class ptr
// C++ function to add pointer from MATLAB to collector. The pointer always
// comes from a C++ return value; this mechanism allows the object to be added
// to a collector in a different wrap module. If this class has a base class,
// a new pointer to the base class is allocated and returned.
wrapperFile.oss << "void " << collectorInsertFunctionName
<< "(int nargout, mxArray *out[], int nargin, const mxArray *in[])\n";
wrapperFile.oss << "{\n";
wrapperFile.oss << " mexAtExit(&_deleteAllObjects);\n";
// Typedef boost::shared_ptr
wrapperFile.oss << " typedef boost::shared_ptr<" << cppName << "> Shared;\n";
wrapperFile.oss << "\n";
// Get self pointer passed in
wrapperFile.oss
<< " Shared *self = *reinterpret_cast<Shared**> (mxGetData(in[0]));\n";
// Add to collector
wrapperFile.oss << " collector_" << matlabUniqueName << ".insert(self);\n";
// If we have a base class, return the base class pointer (MATLAB will call the base class collectorInsertAndMakeBase to add this to the collector and recurse the heirarchy)
boost::optional<string> cppBaseName = qualifiedParent();
if (cppBaseName) {
wrapperFile.oss << "\n";
wrapperFile.oss << " typedef boost::shared_ptr<" << *cppBaseName
<< "> SharedBase;\n";
wrapperFile.oss
<< " out[0] = mxCreateNumericMatrix(1, 1, mxUINT32OR64_CLASS, mxREAL);\n";
wrapperFile.oss
<< " *reinterpret_cast<SharedBase**>(mxGetData(out[0])) = new SharedBase(*self);\n";
}
wrapperFile.oss << "}\n";
// If this is a virtual function, C++ function to dynamic upcast it from a
// shared_ptr<void>. This mechanism allows automatic dynamic creation of the
// real underlying derived-most class when a C++ method returns a virtual
// base class.
if (isVirtual)
wrapperFile.oss << "\n"
"void " << upcastFromVoidFunctionName
<< "(int nargout, mxArray *out[], int nargin, const mxArray *in[]) {\n"
" mexAtExit(&_deleteAllObjects);\n"
" typedef boost::shared_ptr<" << cppName
<< "> Shared;\n"
" boost::shared_ptr<void> *asVoid = *reinterpret_cast<boost::shared_ptr<void>**> (mxGetData(in[0]));\n"
" out[0] = mxCreateNumericMatrix(1, 1, mxUINT32OR64_CLASS, mxREAL);\n"
" Shared *self = new Shared(boost::static_pointer_cast<" << cppName
<< ">(*asVoid));\n"
" *reinterpret_cast<Shared**>(mxGetData(out[0])) = self;\n"
"}\n";
}
/* ************************************************************************* */
Class Class::expandTemplate(const TemplateSubstitution& ts) const {
Class inst = *this;
inst.methods_ = expandMethodTemplate(methods_, ts);
inst.static_methods = expandMethodTemplate(static_methods, ts);
inst.constructor = constructor.expandTemplate(ts);
inst.deconstructor.name = inst.name();
return inst;
}
/* ************************************************************************* */
vector<Class> Class::expandTemplate(Str templateArg,
const vector<Qualified>& instantiations) const {
vector<Class> result;
for(const Qualified& instName: instantiations) {
Qualified expandedClass = (Qualified) (*this);
expandedClass.expand(instName.name());
const TemplateSubstitution ts(templateArg, instName, expandedClass);
Class inst = expandTemplate(ts);
inst.name_ = expandedClass.name();
inst.templateArgs.clear();
inst.typedefName = qualifiedName("::") + "<" + instName.qualifiedName("::")
+ ">";
inst.templateInstTypeList.push_back(instName);
inst.templateClass = *this;
result.push_back(inst);
}
return result;
}
/* ************************************************************************* */
vector<Class> Class::expandTemplate(Str templateArg,
const vector<int>& integers) const {
vector<Class> result;
for(int i: integers) {
Qualified expandedClass = (Qualified) (*this);
stringstream ss; ss << i;
string instName = ss.str();
expandedClass.expand(instName);
const TemplateSubstitution ts(templateArg, instName, expandedClass);
Class inst = expandTemplate(ts);
inst.name_ = expandedClass.name();
inst.templateArgs.clear();
inst.typedefName = qualifiedName("::") + "<" + instName + ">";
result.push_back(inst);
}
return result;
}
/* ************************************************************************* */
void Class::addMethod(bool verbose, bool is_const, Str methodName,
const ArgumentList& argumentList, const ReturnValue& returnValue,
const Template& tmplate) {
// Check if templated
if (tmplate.valid()) {
templateMethods_[methodName].addOverload(methodName, argumentList,
returnValue, is_const,
tmplate.argName(), verbose);
// Create method to expand
// For all values of the template argument, create a new method
for(const Qualified& instName: tmplate.argValues()) {
const TemplateSubstitution ts(tmplate.argName(), instName, *this);
// substitute template in arguments
ArgumentList expandedArgs = argumentList.expandTemplate(ts);
// do the same for return type
ReturnValue expandedRetVal = returnValue.expandTemplate(ts);
// Now stick in new overload stack with expandedMethodName key
// but note we use the same, unexpanded methodName in overload
string expandedMethodName = methodName + instName.name();
methods_[expandedMethodName].addOverload(methodName, expandedArgs,
expandedRetVal, is_const, instName, verbose);
}
} else {
// just add overload
methods_[methodName].addOverload(methodName, argumentList, returnValue,
is_const, boost::none, verbose);
nontemplateMethods_[methodName].addOverload(methodName, argumentList, returnValue,
is_const, boost::none, verbose);
}
}
/* ************************************************************************* */
void Class::erase_serialization(Methods& methods) {
Methods::iterator it = methods.find("serializable");
if (it != methods.end()) {
#ifndef WRAP_DISABLE_SERIALIZE
isSerializable = true;
#else
// cout << "Ignoring serializable() flag in class " << name << endl;
#endif
methods.erase(it);
}
it = methods.find("serialize");
if (it != methods.end()) {
#ifndef WRAP_DISABLE_SERIALIZE
isSerializable = true;
hasSerialization = true;
#else
// cout << "Ignoring serialize() flag in class " << name << endl;
#endif
methods.erase(it);
}
}
void Class::erase_serialization() {
erase_serialization(methods_);
erase_serialization(nontemplateMethods_);
}
/* ************************************************************************* */
void Class::verifyAll(vector<string>& validTypes, bool& hasSerialiable) const {
hasSerialiable |= isSerializable;
// verify all of the function arguments
//TODO:verifyArguments<ArgumentList>(validTypes, constructor.args_list);
verifyArguments<StaticMethod>(validTypes, static_methods);
verifyArguments<Method>(validTypes, methods_);
// verify function return types
verifyReturnTypes<StaticMethod>(validTypes, static_methods);
verifyReturnTypes<Method>(validTypes, methods_);
// verify parents
boost::optional<string> parent = qualifiedParent();
if (parent
&& find(validTypes.begin(), validTypes.end(), *parent)
== validTypes.end())
throw DependencyMissing(*parent, qualifiedName("::"));
}
/* ************************************************************************* */
void Class::appendInheritedMethods(const Class& cls,
const vector<Class>& classes) {
if (cls.parentClass) {
// Find parent
for(const Class& parent: classes) {
// We found a parent class for our parent, TODO improve !
if (parent.name() == cls.parentClass->name()) {
methods_.insert(parent.methods_.begin(), parent.methods_.end());
appendInheritedMethods(parent, classes);
}
}
}
}
/* ************************************************************************* */
void Class::removeInheritedNontemplateMethods(vector<Class>& classes) {
if (!parentClass) return;
// Find parent
auto parentIt = std::find_if(classes.begin(), classes.end(),
[&](const Class& cls) { return cls.name() == parentClass->name(); });
if (parentIt == classes.end()) return; // ignore if parent not found
Class& parent = *parentIt;
// Only check nontemplateMethods_
for(const string& methodName: nontemplateMethods_ | boost::adaptors::map_keys) {
// check if the method exists in its parent
// Check against parent's methods_ because all the methods of grand
// parent and grand-grand-parent, etc. are already included there
// This is to avoid looking into higher level grand parents...
auto it = parent.methods_.find(methodName);
if (it == parent.methods_.end()) continue; // if not: ignore!
Method& parentMethod = it->second;
Method& method = nontemplateMethods_[methodName];
// check if they have the same modifiers (const/static/templateArgs)
if (!method.isSameModifiers(parentMethod)) continue; // if not: ignore
// check and remove duplicate overloads
auto methodOverloads = boost::combine(method.returnVals_, method.argLists_);
auto parentMethodOverloads = boost::combine(parentMethod.returnVals_, parentMethod.argLists_);
auto result = boost::remove_if(
methodOverloads,
[&](boost::tuple<ReturnValue, ArgumentList> const& overload) {
bool found = std::find_if(
parentMethodOverloads.begin(),
parentMethodOverloads.end(),
[&](boost::tuple<ReturnValue, ArgumentList> const&
parentOverload) {
return overload.get<0>() == parentOverload.get<0>() &&
overload.get<1>().isSameSignature(parentOverload.get<1>());
}) != parentMethodOverloads.end();
return found;
});
// remove all duplicate overloads
method.returnVals_.erase(boost::get<0>(result.get_iterator_tuple()),
method.returnVals_.end());
method.argLists_.erase(boost::get<1>(result.get_iterator_tuple()),
method.argLists_.end());
}
// [Optional] remove the entire method if it has no overload
for (auto it = nontemplateMethods_.begin(), ite = nontemplateMethods_.end(); it != ite;)
if (it->second.nrOverloads() == 0) it = nontemplateMethods_.erase(it); else ++it;
}
/* ************************************************************************* */
string Class::getTypedef() const {
string result;
for(Str namesp: namespaces()) {
result += ("namespace " + namesp + " { ");
}
result += ("typedef " + typedefName + " " + name() + ";");
for (size_t i = 0; i < namespaces().size(); ++i) {
result += " }";
}
return result;
}
/* ************************************************************************* */
void Class::comment_fragment(FileWriter& proxyFile) const {
proxyFile.oss << "%class " << name() << ", see Doxygen page for details\n";
proxyFile.oss
<< "%at http://research.cc.gatech.edu/borg/sites/edu.borg/html/index.html\n";
constructor.comment_fragment(proxyFile);
if (!methods_.empty())
proxyFile.oss << "%\n%-------Methods-------\n";
for(const Methods::value_type& name_m: methods_)
name_m.second.comment_fragment(proxyFile);
if (!static_methods.empty())
proxyFile.oss << "%\n%-------Static Methods-------\n";
for(const StaticMethods::value_type& name_m: static_methods)
name_m.second.comment_fragment(proxyFile);
if (hasSerialization) {
proxyFile.oss << "%\n%-------Serialization Interface-------\n";
proxyFile.oss << "%string_serialize() : returns string\n";
proxyFile.oss << "%string_deserialize(string serialized) : returns "
<< name() << "\n";
}
proxyFile.oss << "%\n";
}
/* ************************************************************************* */
void Class::serialization_fragments(FileWriter& proxyFile,
FileWriter& wrapperFile, Str wrapperName,
vector<string>& functionNames) const {
//void Point3_string_serialize_17(int nargout, mxArray *out[], int nargin, const mxArray *in[])
//{
// typedef boost::shared_ptr<Point3> Shared;
// checkArguments("string_serialize",nargout,nargin-1,0);
// Shared obj = unwrap_shared_ptr<Point3>(in[0], "ptr_Point3");
// ostringstream out_archive_stream;
// boost::archive::text_oarchive out_archive(out_archive_stream);
// out_archive << *obj;
// out[0] = wrap< string >(out_archive_stream.str());
//}
int serialize_id = functionNames.size();
const string matlabQualName = qualifiedName(".");
const string matlabUniqueName = qualifiedName();
const string cppClassName = qualifiedName("::");
const string wrapFunctionNameSerialize = matlabUniqueName
+ "_string_serialize_" + boost::lexical_cast<string>(serialize_id);
functionNames.push_back(wrapFunctionNameSerialize);
// call
//void Point3_string_serialize_17(int nargout, mxArray *out[], int nargin, const mxArray *in[])
wrapperFile.oss << "void " << wrapFunctionNameSerialize
<< "(int nargout, mxArray *out[], int nargin, const mxArray *in[])\n";
wrapperFile.oss << "{\n";
wrapperFile.oss << " typedef boost::shared_ptr<" << cppClassName
<< "> Shared;" << endl;
// check arguments - for serialize, no arguments
// example: checkArguments("string_serialize",nargout,nargin-1,0);
wrapperFile.oss
<< " checkArguments(\"string_serialize\",nargout,nargin-1,0);\n";
// get class pointer
// example: Shared obj = unwrap_shared_ptr<Point3>(in[0], "ptr_Point3");
wrapperFile.oss << " Shared obj = unwrap_shared_ptr<" << cppClassName
<< ">(in[0], \"ptr_" << matlabUniqueName << "\");" << endl;
// Serialization boilerplate
wrapperFile.oss << " ostringstream out_archive_stream;\n";
wrapperFile.oss
<< " boost::archive::text_oarchive out_archive(out_archive_stream);\n";
wrapperFile.oss << " out_archive << *obj;\n";
wrapperFile.oss << " out[0] = wrap< string >(out_archive_stream.str());\n";
// finish
wrapperFile.oss << "}\n";
// Generate code for matlab function
// function varargout string_serialize(this, varargin)
// % STRING_SERIALIZE usage: string_serialize() : returns string
// % Doxygen can be found at http://research.cc.gatech.edu/borg/sites/edu.borg/html/index.html
// if length(varargin) == 0
// varargout{1} = geometry_wrapper(15, this, varargin{:});
// else
// error('Arguments do not match any overload of function Point3.string_serialize');
// end
// end
proxyFile.oss
<< " function varargout = string_serialize(this, varargin)\n";
proxyFile.oss
<< " % STRING_SERIALIZE usage: string_serialize() : returns string\n";
proxyFile.oss
<< " % Doxygen can be found at http://research.cc.gatech.edu/borg/sites/edu.borg/html/index.html\n";
proxyFile.oss << " if length(varargin) == 0\n";
proxyFile.oss << " varargout{1} = " << wrapperName << "("
<< boost::lexical_cast<string>(serialize_id) << ", this, varargin{:});\n";
proxyFile.oss << " else\n";
proxyFile.oss
<< " error('Arguments do not match any overload of function "
<< matlabQualName << ".string_serialize');\n";
proxyFile.oss << " end\n";
proxyFile.oss << " end\n\n";
// Generate code for matlab save function
// function sobj = saveobj(obj)
// % SAVEOBJ Saves the object to a matlab-readable format
// sobj = obj.string_serialize();
// end
proxyFile.oss << " function sobj = saveobj(obj)\n";
proxyFile.oss
<< " % SAVEOBJ Saves the object to a matlab-readable format\n";
proxyFile.oss << " sobj = obj.string_serialize();\n";
proxyFile.oss << " end\n";
}
/* ************************************************************************* */
void Class::deserialization_fragments(FileWriter& proxyFile,
FileWriter& wrapperFile, Str wrapperName,
vector<string>& functionNames) const {
//void Point3_string_deserialize_18(int nargout, mxArray *out[], int nargin, const mxArray *in[])
//{
// typedef boost::shared_ptr<Point3> Shared;
// checkArguments("Point3.string_deserialize",nargout,nargin,1);
// string serialized = unwrap< string >(in[0]);
// istringstream in_archive_stream(serialized);
// boost::archive::text_iarchive in_archive(in_archive_stream);
// Shared output(new Point3(0,0,0));
// in_archive >> *output;
// out[0] = wrap_shared_ptr(output,"Point3", false);
//}
int deserialize_id = functionNames.size();
const string matlabQualName = qualifiedName(".");
const string matlabUniqueName = qualifiedName();
const string cppClassName = qualifiedName("::");
const string wrapFunctionNameDeserialize = matlabUniqueName
+ "_string_deserialize_" + boost::lexical_cast<string>(deserialize_id);
functionNames.push_back(wrapFunctionNameDeserialize);
// call
wrapperFile.oss << "void " << wrapFunctionNameDeserialize
<< "(int nargout, mxArray *out[], int nargin, const mxArray *in[])\n";
wrapperFile.oss << "{\n";
wrapperFile.oss << " typedef boost::shared_ptr<" << cppClassName
<< "> Shared;" << endl;
// check arguments - for deserialize, 1 string argument
wrapperFile.oss << " checkArguments(\"" << matlabUniqueName
<< ".string_deserialize\",nargout,nargin,1);\n";
// string argument with deserialization boilerplate
wrapperFile.oss << " string serialized = unwrap< string >(in[0]);\n";
wrapperFile.oss << " istringstream in_archive_stream(serialized);\n";
wrapperFile.oss
<< " boost::archive::text_iarchive in_archive(in_archive_stream);\n";
wrapperFile.oss << " Shared output(new " << cppClassName << "());\n";
wrapperFile.oss << " in_archive >> *output;\n";
wrapperFile.oss << " out[0] = wrap_shared_ptr(output,\"" << matlabQualName
<< "\", false);\n";
wrapperFile.oss << "}\n";
// Generate matlab function
// function varargout = string_deserialize(varargin)
// % STRING_DESERIALIZE usage: string_deserialize() : returns Point3
// % Doxygen can be found at http://research.cc.gatech.edu/borg/sites/edu.borg/html/index.html
// if length(varargin) == 1
// varargout{1} = geometry_wrapper(18, varargin{:});
// else
// error('Arguments do not match any overload of function Point3.string_deserialize');
// end
// end
proxyFile.oss << " function varargout = string_deserialize(varargin)\n";
proxyFile.oss
<< " % STRING_DESERIALIZE usage: string_deserialize() : returns "
<< matlabQualName << "\n";
proxyFile.oss
<< " % Doxygen can be found at http://research.cc.gatech.edu/borg/sites/edu.borg/html/index.html\n";
proxyFile.oss << " if length(varargin) == 1\n";
proxyFile.oss << " varargout{1} = " << wrapperName << "("
<< boost::lexical_cast<string>(deserialize_id) << ", varargin{:});\n";
proxyFile.oss << " else\n";
proxyFile.oss
<< " error('Arguments do not match any overload of function "
<< matlabQualName << ".string_deserialize');\n";
proxyFile.oss << " end\n";
proxyFile.oss << " end\n\n";
// Generate matlab load function
// function obj = loadobj(sobj)
// % LOADOBJ Saves the object to a matlab-readable format
// obj = Point3.string_deserialize(sobj);
// end
proxyFile.oss << " function obj = loadobj(sobj)\n";
proxyFile.oss
<< " % LOADOBJ Saves the object to a matlab-readable format\n";
proxyFile.oss << " obj = " << matlabQualName
<< ".string_deserialize(sobj);\n";
proxyFile.oss << " end" << endl;
}
/* ************************************************************************* */
string Class::getSerializationExport() const {
//BOOST_CLASS_EXPORT_GUID(gtsam::SharedDiagonal, "gtsamSharedDiagonal");
return "BOOST_CLASS_EXPORT_GUID(" + qualifiedName("::") + ", \""
+ qualifiedName() + "\");";
}
/* ************************************************************************* */
void Class::python_wrapper(FileWriter& wrapperFile) const {
wrapperFile.oss << "class_<" << name() << ">(\"" << name() << "\")\n";
constructor.python_wrapper(wrapperFile, name());
for(const StaticMethod& m: static_methods | boost::adaptors::map_values)
m.python_wrapper(wrapperFile, name());
for(const Method& m: methods_ | boost::adaptors::map_values)
m.python_wrapper(wrapperFile, name());
wrapperFile.oss << ";\n\n";
}
/* ************************************************************************* */
void Class::emit_cython_pxd(FileWriter& pxdFile) const {
pxdFile.oss << "cdef extern from \"" << includeFile << "\"";
string ns = qualifiedNamespaces("::");
if (!ns.empty())
pxdFile.oss << " namespace \"" << ns << "\"";
pxdFile.oss << ":" << endl;
pxdFile.oss << " cdef cppclass " << pxdClassName() << " \"" << qualifiedName("::") << "\"";
if (templateArgs.size()>0) {
pxdFile.oss << "[";
for(size_t i = 0; i<templateArgs.size(); ++i) {
pxdFile.oss << templateArgs[i];
if (i<templateArgs.size()-1) pxdFile.oss << ",";
}
pxdFile.oss << "]";
}
if (parentClass) pxdFile.oss << "(" << parentClass->pxdClassName() << ")";
pxdFile.oss << ":\n";
constructor.emit_cython_pxd(pxdFile, *this);
if (constructor.nrOverloads()>0) pxdFile.oss << "\n";
for(const StaticMethod& m: static_methods | boost::adaptors::map_values)
m.emit_cython_pxd(pxdFile, *this);
if (static_methods.size()>0) pxdFile.oss << "\n";
for(const Method& m: nontemplateMethods_ | boost::adaptors::map_values)
m.emit_cython_pxd(pxdFile, *this);
for(const TemplateMethod& m: templateMethods_ | boost::adaptors::map_values)
m.emit_cython_pxd(pxdFile, *this);
size_t numMethods = constructor.nrOverloads() + static_methods.size() +
methods_.size() + templateMethods_.size();
if (numMethods == 0)
pxdFile.oss << " pass\n";
}
/* ************************************************************************* */
void Class::emit_cython_wrapper_pxd(FileWriter& pxdFile) const {
pxdFile.oss << "\ncdef class " << pyxClassName();
if (getParent())
pxdFile.oss << "(" << getParent()->pyxClassName() << ")";
pxdFile.oss << ":\n";
pxdFile.oss << " cdef " << shared_pxd_class_in_pyx() << " "
<< shared_pxd_obj_in_pyx() << "\n";
// cyCreateFromShared
pxdFile.oss << " @staticmethod\n";
pxdFile.oss << " cdef " << pyxClassName() << " cyCreateFromShared(const "
<< shared_pxd_class_in_pyx() << "& other)\n";
for(const StaticMethod& m: static_methods | boost::adaptors::map_values)
m.emit_cython_wrapper_pxd(pxdFile, *this);
if (static_methods.size()>0) pxdFile.oss << "\n";
}
/* ************************************************************************* */
void Class::pyxInitParentObj(FileWriter& pyxFile, const std::string& pyObj,
const std::string& cySharedObj,
const std::vector<Class>& allClasses) const {
if (parentClass) {
pyxFile.oss << pyObj << "." << parentClass->shared_pxd_obj_in_pyx() << " = "
<< "<" << parentClass->shared_pxd_class_in_pyx() << ">("
<< cySharedObj << ")\n";
// Find the parent class with name "parentClass" and point its cython obj
// to the same pointer
auto parent_it = find_if(allClasses.begin(), allClasses.end(),
[this](const Class& cls) {
return cls.pxdClassName() ==
this->parentClass->pxdClassName();
});
if (parent_it == allClasses.end()) {
cerr << "Can't find parent class: " << parentClass->pxdClassName();
throw std::runtime_error("Parent class not found!");
}
parent_it->pyxInitParentObj(pyxFile, pyObj, cySharedObj, allClasses);
}
}
/* ************************************************************************* */
void Class::pyxDynamicCast(FileWriter& pyxFile, const Class& curLevel,
const std::vector<Class>& allClasses) const {
std::string me = this->pyxClassName(), sharedMe = this->shared_pxd_class_in_pyx();
if (curLevel.parentClass) {
std::string parent = curLevel.parentClass->pyxClassName(),
parentObj = curLevel.parentClass->shared_pxd_obj_in_pyx(),
parentCythonClass = curLevel.parentClass->pxd_class_in_pyx();
pyxFile.oss << "def dynamic_cast_" << me << "_" << parent << "(" << parent
<< " parent):\n";
pyxFile.oss << " try:\n";
pyxFile.oss << " return " << me << ".cyCreateFromShared(<" << sharedMe
<< ">dynamic_pointer_cast[" << pxd_class_in_pyx() << ","
<< parentCythonClass << "](parent." << parentObj
<< "))\n";
pyxFile.oss << " except:\n";
pyxFile.oss << " raise TypeError('dynamic cast failed!')\n";
// Move up higher to one level: Find the parent class with name "parentClass"
auto parent_it = find_if(allClasses.begin(), allClasses.end(),
[&curLevel](const Class& cls) {
return cls.pxdClassName() ==
curLevel.parentClass->pxdClassName();
});
if (parent_it == allClasses.end()) {
cerr << "Can't find parent class: " << parentClass->pxdClassName();
throw std::runtime_error("Parent class not found!");
}
pyxDynamicCast(pyxFile, *parent_it, allClasses);
}
}
/* ************************************************************************* */
void Class::emit_cython_pyx(FileWriter& pyxFile, const std::vector<Class>& allClasses) const {
pyxFile.oss << "cdef class " << pyxClassName();
if (parentClass) pyxFile.oss << "(" << parentClass->pyxClassName() << ")";
pyxFile.oss << ":\n";
// __init___
pyxFile.oss << " def __init__(self, *args, **kwargs):\n";
pyxFile.oss << " cdef list __params\n";
pyxFile.oss << " self." << shared_pxd_obj_in_pyx() << " = " << shared_pxd_class_in_pyx() << "()\n";
pyxFile.oss << " if len(args)==0 and len(kwargs)==1 and kwargs.has_key('cyCreateFromShared'):\n return\n";
// Constructors
constructor.emit_cython_pyx(pyxFile, *this);
pyxFile.oss << " if (self." << shared_pxd_obj_in_pyx() << ".use_count()==0):\n";
pyxFile.oss << " raise TypeError('" << pyxClassName()
<< " construction failed!')\n";
pyxInitParentObj(pyxFile, " self", "self." + shared_pxd_obj_in_pyx(), allClasses);
pyxFile.oss << "\n";
// cyCreateFromShared
pyxFile.oss << " @staticmethod\n";
pyxFile.oss << " cdef " << pyxClassName() << " cyCreateFromShared(const "
<< shared_pxd_class_in_pyx() << "& other):\n"
<< " if other.get() == NULL:\n"
<< " raise RuntimeError('Cannot create object from a nullptr!')\n"
<< " cdef " << pyxClassName() << " return_value = " << pyxClassName() << "(cyCreateFromShared=True)\n"
<< " return_value." << shared_pxd_obj_in_pyx() << " = other\n";
pyxInitParentObj(pyxFile, " return_value", "other", allClasses);
pyxFile.oss << " return return_value" << "\n\n";
for(const StaticMethod& m: static_methods | boost::adaptors::map_values)
m.emit_cython_pyx(pyxFile, *this);
if (static_methods.size()>0) pyxFile.oss << "\n";
for(const Method& m: methods_ | boost::adaptors::map_values)
m.emit_cython_pyx(pyxFile, *this);
pyxDynamicCast(pyxFile, *this, allClasses);
pyxFile.oss << "\n\n";
}
/* ************************************************************************* */