#include <iostream>
#include <memory>

#include "expression.hpp"

int main() {
    // v1, v2, v3 are ValueExpression objects
    auto v1 = make_value(42);
    auto v2 = make_value(23);
    auto v3 = make_value(3.14);

    auto e1 = make_addition(std::move(v1), std::move(v2));
    auto e2 = make_multiplication(std::move(e1), std::move(v3));

    std::cout << "(42 + 23) * 3.14 = " << *e2->evaluate() << std::endl;

    return 0;
}