argument_base.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_name.hpp"
#include "help_builder.hpp"
 
#include <any>
#include <iostream>
#include <vector>
 
namespace ap {
 
class argument_parser;
 
namespace detail {
 
class argument_base {
public:
    virtual ~argument_base() = default;
 
    virtual bool is_positional() const noexcept = 0;
 
    virtual bool is_optional() const noexcept = 0;
 
    virtual const argument_name& name() const noexcept = 0;
 
    virtual const std::optional<std::string>& help() const noexcept = 0;
 
    virtual bool is_hidden() const noexcept = 0;
 
    virtual bool is_required() const noexcept = 0;
 
    virtual bool suppresses_arg_checks() const noexcept = 0;
 
    virtual bool suppresses_group_checks() const noexcept = 0;
 
    virtual bool is_greedy() const noexcept = 0;
 
    friend class ::ap::argument_parser;
 
protected:
    virtual detail::help_builder help_builder(const bool verbose) const noexcept = 0;
 
    virtual bool mark_used() = 0;
 
    virtual bool is_used() const noexcept = 0;
 
    virtual std::size_t count() const noexcept = 0;
 
    virtual bool set_value(const std::string& value) = 0;
 
    virtual bool has_value() const noexcept = 0;
 
    virtual bool has_parsed_values() const noexcept = 0;
 
    virtual bool has_predefined_values() const noexcept = 0;
 
    virtual std::weak_ordering nvalues_ordering() const noexcept = 0;
 
    virtual const std::any& value() const = 0;
 
    virtual const std::vector<std::any>& values() const = 0;
};
 
} // namespace detail
} // namespace ap