arg_router::multi_arg_base_t< T, MinCount, Policies > Class Template Reference

#include <arg_router/multi_arg_base.hpp>

Inherits add_missing_min_max_policy::type.

Protected Types
using	value_type = T
template<bool Flatten>
using	help_data_type = typename parent_type::template default_leaf_help_data_type< Flatten >

Protected Member Functions
template<auto has_min_max = add_missing_min_max_policy<MinCount, Policies...>::has_min_max>
constexpr	multi_arg_base_t (Policies... policies, std::enable_if_t< has_min_max > *=nullptr) noexcept
template<typename... Parents>
value_type	parse (parsing::parse_target target, const Parents &... parents) const

Detailed Description

template<typename T, std::size_t MinCount, typename... Policies>
class arg_router::multi_arg_base_t< T, MinCount, Policies >

Base class for nodes that support multiple value tokens.

If no policy implementing minimum_count() and maximum_count() methods is used (e.g. policy::min_max_count_t), then an unbounded policy::min_max_count_t is prepended to the policies internally.

This is the base class for arg_t, multi_arg_t, and postional_arg_t.

Note

Only supports nodes with a minimum of 1 value token (i.e. is not used for flag-like types)

Template Parameters

T	Argument value type
MinCount	Minimum count value to use if one not specified by user
Policies	Pack of policies that define its behaviour

Definition at line 25 of file multi_arg_base.hpp.

Member Typedef Documentation

help_data_type

template<typename T , std::size_t MinCount, typename... Policies>

template<bool Flatten>

using arg_router::multi_arg_base_t< T, MinCount, Policies >::help_data_type = typename parent_type::template default_leaf_help_data_type<Flatten>

protected

Help data type.

Definition at line 55 of file multi_arg_base.hpp.

value_type

template<typename T , std::size_t MinCount, typename... Policies>

using arg_router::multi_arg_base_t< T, MinCount, Policies >::value_type = T

protected

Argument value type.

Definition at line 51 of file multi_arg_base.hpp.

Constructor & Destructor Documentation

multi_arg_base_t()

template<typename T , std::size_t MinCount, typename... Policies>

template<auto has_min_max = add_missing_min_max_policy<MinCount, Policies...>::has_min_max>

constexpr arg_router::multi_arg_base_t< T, MinCount, Policies >::multi_arg_base_t ( Policies...  policies, std::enable_if_t< has_min_max > *  = nullptr  )

inlineexplicitconstexprprotectednoexcept

Constructor.

Parameters

policies

Policy instances

Definition at line 62 of file multi_arg_base.hpp.

Member Function Documentation

parse()

template<typename T , std::size_t MinCount, typename... Policies>

template<typename... Parents>

value_type arg_router::multi_arg_base_t< T, MinCount, Policies >::parse ( parsing::parse_target  target, const Parents &...  parents  ) const

inlineprotected

Parse function.

Template Parameters

Parents

Pack of parent tree nodes in ascending ancestry order

Parameters

target	Parse target
parents	Parents instances pack

Returns

Parsed result, note that if a routing policy is present then the result is moved into that so this value is the moved-from result

Exceptions

multi_lang_exception

Thrown if parsing failed

Definition at line 98 of file multi_arg_base.hpp.

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The documentation for this class was generated from the following file:

• arg_router/multi_arg_base.hpp