Repl.hpp

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/**
 * @file Repl.hpp
 * @author Alexandre Plateau ([email protected])
 * @brief ArkScript REPL - Read Eval Print Loop
 * @version 1.0
 * @date 2020-10-27
 *
 * @copyright Copyright (c) 2020-2024
 *
 */
 
#ifndef ARK_REPL_REPL_HPP
#define ARK_REPL_REPL_HPP
 
#include <string>
#include <optional>
 
#include <Ark/VM/VM.hpp>
#include <Ark/VM/State.hpp>
 
#include <replxx.hxx>
 
namespace Ark
{
    class Repl
    {
    public:
        /**
         * @brief Construct a new Repl object
         *
         * @param lib_env search path for the std library
         */
        explicit Repl(const std::vector<std::filesystem::path>& lib_env);
 
        /**
         * @brief Start the REPL
         *
         */
        int run();
 
    private:
        replxx::Replxx m_repl;
        unsigned m_line_count;
        std::string m_code;
        bool m_running;
 
        std::size_t m_old_ip;
        std::vector<std::filesystem::path> m_lib_env;
        State m_state;
        VM m_vm;
        bool m_has_init_vm;
        std::vector<std::string> m_keywords;
        std::vector<std::pair<std::string, replxx::Replxx::Color>> m_words_colors;
 
        /**
         * @brief Configure replxx
         */
        void cuiSetup();
 
        /**
         * @brief Get a line via replxx and handle commands
         * @param continuation if the prompt needs to be modified because a code block isn't entirely closed, set to true
         * @return
         */
        std::optional<std::string> getLine(bool continuation);
 
        /**
         * @brief Prompt the user to enter a complete code block and handle the prompt modifications until the code block is complete
         * @return std::optional<std::string>
         */
        std::optional<std::string> getCodeBlock();
    };
}
 
#endif