exists.h

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#pragma once
 
#include "dius/filesystem/query/status.h"
#include "dius/filesystem/query/status_known.h"
 
namespace dius::filesystem {
namespace detail {
    struct ExistsFunction {
        constexpr auto operator()(FileStatus status) const -> bool {
            return status_known(status) && status.type() != FileType::NotFound;
        }
 
        auto operator()(di::PathView path) const -> di::Result<bool> { return status(path) % *this; }
    };
}
 
constexpr inline auto exists = detail::ExistsFunction {};
}