gtsam/wrap/Method.cpp

119 lines
4.3 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 Method.ccp
* @author Frank Dellaert
* @author Richard Roberts
**/
#include "Method.h"
#include "Class.h"
#include "utilities.h"
#include <boost/lexical_cast.hpp>
#include <boost/algorithm/string.hpp>
#include <iostream>
#include <fstream>
using namespace std;
using namespace wrap;
/* ************************************************************************* */
bool Method::addOverload(Str name, const ArgumentList& args,
const ReturnValue& retVal, bool is_const,
boost::optional<const Qualified> instName, bool verbose) {
bool first = MethodBase::addOverload(name, args, retVal, instName, verbose);
if (first)
is_const_ = is_const;
else if (is_const && !is_const_)
throw std::runtime_error(
"Method::addOverload now designated as const whereas before it was not");
else if (!is_const && is_const_)
throw std::runtime_error(
"Method::addOverload now designated as non-const whereas before it was");
return first;
}
/* ************************************************************************* */
void Method::proxy_header(FileWriter& proxyFile) const {
proxyFile.oss << " function varargout = " << matlabName()
<< "(this, varargin)\n";
}
/* ************************************************************************* */
string Method::wrapper_call(FileWriter& wrapperFile, Str cppClassName,
Str matlabUniqueName, const ArgumentList& args) const {
// check arguments
// extra argument obj -> nargin-1 is passed !
// example: checkArguments("equals",nargout,nargin-1,2);
wrapperFile.oss << " checkArguments(\"" << matlabName()
<< "\",nargout,nargin-1," << args.size() << ");\n";
// get class pointer
// example: shared_ptr<Test> = unwrap_shared_ptr< Test >(in[0], "Test");
wrapperFile.oss << " Shared obj = unwrap_shared_ptr<" << cppClassName
<< ">(in[0], \"ptr_" << matlabUniqueName << "\");" << endl;
// unwrap arguments, see Argument.cpp, we start at 1 as first is obj
args.matlab_unwrap(wrapperFile, 1);
// call method and wrap result
// example: out[0]=wrap<bool>(obj->return_field(t));
string expanded = "obj->" + name_;
if (templateArgValue_)
expanded += ("<" + templateArgValue_->qualifiedName("::") + ">");
return expanded;
}
/* ************************************************************************* */
void Method::emit_cython_pxd(FileWriter& file) const {
for(size_t i = 0; i < nrOverloads(); ++i) {
file.oss << "\t\t";
returnVals_[i].emit_cython_pxd(file);
file.oss << ((name_ == "print") ? "_print \"print\"" : name_) << "(";
argumentList(i).emit_cython_pxd(file);
file.oss << ")";
if (is_const_) file.oss << " const";
file.oss << "\n";
}
}
/* ************************************************************************* */
void Method::emit_cython_pyx(FileWriter& file, const Class& cls) const {
string funcName = ((name_ == "print") ? "_print" : name_);
size_t N = nrOverloads();
for(size_t i = 0; i < N; ++i) {
// Function definition
file.oss << "\tdef " << funcName;
// modify name of function instantiation as python doesn't allow overloads
// e.g. template<T={A,B,C}> funcName(...) --> funcNameA, funcNameB, funcNameC
// TODO: handle overloading properly!! This is lazy...
if (templateArgValue_) file.oss << templateArgValue_->name();
// change function overload's name: funcName(...) --> funcName_1, funcName_2
// TODO: handle overloading properly!! This is lazy...
file.oss << ((i>0)? "_" + to_string(i):"");
// funtion arguments
file.oss << "(self";
if (argumentList(i).size() > 0) file.oss << ", ";
argumentList(i).emit_cython_pyx(file);
file.oss << "):\n";
/// Call cython corresponding function and return
string caller = "self." + cls.pyxCythonObj() + ".get()";
emit_cython_pyx_function_call(file, "\t\t", caller, funcName, i, cls);
}
}
/* ************************************************************************* */