gtsam/wrap/TemplateSubstitution.h

77 lines
1.8 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 TemplateSubstitution.h
* @brief Auxiliary class for template substitutions
* @author Frank Dellaert
* @date Nov 13, 2014
**/
#pragma once
#include "ReturnType.h"
#include <string>
#include <iostream>
namespace wrap {
/**
* e.g. TemplateSubstitution("T", gtsam::Point2, gtsam::PriorFactorPoint2)
*/
class TemplateSubstitution {
std::string templateArg_;
Qualified qualifiedType_, expandedClass_;
public:
TemplateSubstitution(const std::string& a, const Qualified& t,
const Qualified& e) :
templateArg_(a), qualifiedType_(t), expandedClass_(e) {
}
std::string expandedClassName() const {
return expandedClass_.name();
}
// Substitute if needed
Qualified tryToSubstitite(const Qualified& type) const {
if (type.match(templateArg_))
return qualifiedType_;
else if (type.match("This"))
return expandedClass_;
else
return type;
}
// Substitute if needed
ReturnType tryToSubstitite(const ReturnType& type) const {
ReturnType instType = type;
if (type.match(templateArg_))
instType.rename(qualifiedType_);
else if (type.match("This"))
instType.rename(expandedClass_);
return instType;
}
friend std::ostream& operator<<(std::ostream& os,
const TemplateSubstitution& ts) {
os << ts.templateArg_ << '/' << ts.qualifiedType_.qualifiedName("::")
<< " (" << ts.expandedClass_.qualifiedName("::") << ")";
return os;
}
};
} // \namespace wrap