#include "parser.hpp"
#include <iostream>
#include <sstream>

int main()
{
    std::istringstream inp(
            "const world = 5, hello = 7;\n"
            "var x: Int, y: ^Int;\n"
            "begin\n"
            "end.\n"
    );
    std::unique_ptr<elna::source::program> program;
    int result{ 1 };

    elna::syntax::FooLexer lexer(inp);
    yy::parser parser(lexer, program);
    try
    {
        result = parser();
    }
    catch (yy::parser::syntax_error& syntax_error)
    {
        std::cerr << syntax_error.location << ": " << syntax_error.what() << std::endl;
        return result;
    }

    for (auto& definition : program->definitions())
    {
        auto const_definition = dynamic_cast<elna::source::constant_definition *>(definition.get());

        std::cout << "const " << const_definition->identifier() << " = "
            << const_definition->body().number() << std::endl;
    }
    for (auto& declaration : program->declarations())
    {
        std::cout << "var " << declaration->identifier() << ": ";

        if (declaration->type().is_pointer())
        {
            std::cout << '^';
        }
        std::cout << declaration->type().base() << std::endl;
    }
    return result;
}