format_args_storage.h

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#pragma once
 
#include "di/format/format_args.h"
#include "di/vocab/array/prelude.h"
 
namespace di::format {
template<size_t count, concepts::FormatArg Arg>
class FormatArgsStorage : public FormatArgs<Arg> {
public:
    using FormatArgs<Arg>::operator[];
 
    template<concepts::SameAs<Arg>... Args>
    requires(sizeof...(Args) == count)
    constexpr FormatArgsStorage(Args&&... args) : FormatArgs<Arg>({}), m_storage { util::forward<Args>(args)... } {
        this->set_args(m_storage.span());
    }
 
private:
    Array<Arg, count> m_storage;
};
}