argument_token.hpp

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// Copyright (c) 2023-2025 Jakub Musiał
// This file is part of the CPP-AP project (https://github.com/SpectraL519/cpp-ap).
// Licensed under the MIT License. See the LICENSE file in the project root for full license information.
 
 
#pragma once
 
#include "argument_base.hpp"
 
#include <cstdint>
#include <string>
#include <vector>
 
namespace ap::detail {
 
struct argument_token {
    using arg_ptr_t = std::shared_ptr<detail::argument_base>; 
    using arg_ptr_vec_t = std::vector<arg_ptr_t>;
 
    enum class token_type : std::uint8_t {
        t_value, 
        t_flag_primary, 
        t_flag_secondary, 
        t_flag_compound 
    };
    using enum token_type;
 
    bool operator==(const argument_token& other) const noexcept {
        return this->type == other.type and this->value == other.value;
    }
 
    [[nodiscard]] bool is_flag_token() const noexcept {
        switch (this->type) {
        case t_flag_primary:
            [[fallthrough]];
        case t_flag_secondary:
            [[fallthrough]];
        case t_flag_compound:
            return true;
        default:
            return false;
        }
    }
 
    [[nodiscard]] bool is_valid_flag_token() const noexcept {
        return this->is_flag_token() and not this->args.empty();
    }
 
    token_type type; 
    std::string value; 
    arg_ptr_vec_t args = {}; 
};
 
} // namespace ap::detail