gtsam/wrap/ReturnValue.cpp

146 lines
5.7 KiB
C++

/**
* @file ReturnValue.cpp
*
* @date Dec 1, 2011
* @author Alex Cunningham
* @author Andrew Melim
* @author Richard Roberts
*/
#include <boost/foreach.hpp>
#include "ReturnValue.h"
#include "utilities.h"
using namespace std;
using namespace wrap;
/* ************************************************************************* */
string ReturnValue::return_type(bool add_ptr, pairing p) const {
if (p==pair && isPair) {
string str = "pair< " +
maybe_shared_ptr(add_ptr || isPtr1, qualifiedType1("::"), type1) + ", " +
maybe_shared_ptr(add_ptr || isPtr2, qualifiedType2("::"), type2) + " >";
return str;
} else
return maybe_shared_ptr(add_ptr && isPtr1, (p==arg2)? qualifiedType2("::") : qualifiedType1("::"), (p==arg2)? type2 : type1);
}
/* ************************************************************************* */
string ReturnValue::matlab_returnType() const {
return isPair? "[first,second]" : "result";
}
/* ************************************************************************* */
string ReturnValue::qualifiedType1(const string& delim) const {
string result;
BOOST_FOREACH(const string& ns, namespaces1) result += ns + delim;
return result + type1;
}
/* ************************************************************************* */
string ReturnValue::qualifiedType2(const string& delim) const {
string result;
BOOST_FOREACH(const string& ns, namespaces2) result += ns + delim;
return result + type2;
}
/* ************************************************************************* */
//TODO:Fix this
void ReturnValue::wrap_result(const string& result, FileWriter& file, const TypeAttributesTable& typeAttributes) const {
string cppType1 = qualifiedType1("::"), matlabType1 = qualifiedType1(".");
string cppType2 = qualifiedType2("::"), matlabType2 = qualifiedType2(".");
if (isPair) {
// For a pair, store the returned pair so we do not evaluate the function twice
file.oss << " " << return_type(false, pair) << " pairResult = " << result << ";\n";
// first return value in pair
if (category1 == ReturnValue::CLASS) { // if we are going to make one
string objCopy, ptrType;
ptrType = "Shared" + type1;
const bool isVirtual = typeAttributes.at(cppType1).isVirtual;
if(isVirtual) {
if(isPtr1)
objCopy = "pairResult.first";
else
objCopy = "pairResult.first.clone()";
} else {
if(isPtr1)
objCopy = "pairResult.first";
else
objCopy = ptrType + "(new " + cppType1 + "(pairResult.first))";
}
file.oss << " out[0] = wrap_shared_ptr(" << objCopy << ",\"" << matlabType1 << "\", " << (isVirtual ? "true" : "false") << ");\n";
} else if(isPtr1) {
file.oss << " Shared" << type1 <<"* ret = new Shared" << type1 << "(pairResult.first);" << endl;
file.oss << " out[0] = wrap_shared_ptr(ret,\"" << matlabType1 << "\", false);\n";
} else // if basis type
file.oss << " out[0] = wrap< " << return_type(true,arg1) << " >(pairResult.first);\n";
// second return value in pair
if (category2 == ReturnValue::CLASS) { // if we are going to make one
string objCopy, ptrType;
ptrType = "Shared" + type2;
const bool isVirtual = typeAttributes.at(cppType2).isVirtual;
if(isVirtual) {
if(isPtr2)
objCopy = "pairResult.second";
else
objCopy = "pairResult.second.clone()";
} else {
if(isPtr2)
objCopy = "pairResult.second";
else
objCopy = ptrType + "(new " + cppType2 + "(pairResult.second))";
}
file.oss << " out[1] = wrap_shared_ptr(" << objCopy << ",\"" << matlabType2 << "\", " << (isVirtual ? "true" : "false") << ");\n";
} else if(isPtr2) {
file.oss << " Shared" << type2 <<"* ret = new Shared" << type2 << "(pairResult.second);" << endl;
file.oss << " out[1] = wrap_shared_ptr(ret,\"" << matlabType2 << "\");\n";
} else
file.oss << " out[1] = wrap< " << return_type(true,arg2) << " >(pairResult.second);\n";
} else { // Not a pair
if (category1 == ReturnValue::CLASS) {
string objCopy, ptrType;
ptrType = "Shared" + type1;
const bool isVirtual = typeAttributes.at(cppType1).isVirtual;
if(isVirtual) {
if(isPtr1)
objCopy = result;
else
objCopy = result + ".clone()";
} else {
if(isPtr1)
objCopy = result;
else
objCopy = ptrType + "(new " + cppType1 + "(" + result + "))";
}
file.oss << " out[0] = wrap_shared_ptr(" << objCopy << ",\"" << matlabType1 << "\", " << (isVirtual ? "true" : "false") << ");\n";
} else if(isPtr1) {
file.oss << " Shared" << type1 <<"* ret = new Shared" << type1 << "(" << result << ");" << endl;
file.oss << " out[0] = wrap_shared_ptr(ret,\"" << matlabType1 << "\");\n";
} else if (matlabType1!="void")
file.oss << " out[0] = wrap< " << return_type(true,arg1) << " >(" << result << ");\n";
}
}
/* ************************************************************************* */
void ReturnValue::wrapTypeUnwrap(FileWriter& wrapperFile) const {
if(isPair)
{
if(category1 == ReturnValue::CLASS)
wrapperFile.oss << " typedef boost::shared_ptr<" << qualifiedType1("::") << "> Shared" << type1 << ";"<< endl;
if(category2 == ReturnValue::CLASS)
wrapperFile.oss << " typedef boost::shared_ptr<" << qualifiedType2("::") << "> Shared" << type2 << ";"<< endl;
}
else {
if (category1 == ReturnValue::CLASS)
wrapperFile.oss << " typedef boost::shared_ptr<" << qualifiedType1("::") << "> Shared" << type1 << ";"<< endl;
}
}
/* ************************************************************************* */