Header only, zero overhead C# - like properties for C++!
struct In{
int x;
int y;
};
class Data{
In m_i;
public:
auto i(){
return Property(
[&]() -> In {
return {
m_i.x * 10,
m_i.y * -10
};
},
[&](const auto& i){
m_i = i;
}
);
}
};
int main(){
Data data;
data.i() = In{1,2};
std::cout
<< data.i()->x
<< data.i()->y;
}Simple interface:
Property(getter, setter)
Getter() -> T
Getter() -> const T&
Getter() -> const T*
Setter(Args&&...)
Accessors:
operator*() const
operator->() const
get() const
operator T() const
Mutators:
void set(Args&&...)
void operator=(Value&&)
From mutable:
class Data{
int m_j;
auto& self_mut() const { return const_cast<Data&>(*this); }
public:
auto j() {
return Property{
[&]() { return m_j; },
[&](int j){ m_j = j; }
};
}
auto j() const {
return self_mut().j().make_const();
}
};See stateless branch for other api.
Requires C++17.