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path: root/ttwhy/scanners/terminal_concepts.cppm
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module;

#include <concepts>
#include <span>

export module ttwhy.scanners:terminal_concepts;

import :terminal_events;

namespace ttwhy
{

  export template<typename Candidate>
  concept scanner = requires(Candidate a, std::span<char const> buffer) {
    { a.process(buffer) } -> std::same_as<void>;
    { a.timeout() } -> std::same_as<void>;
    { a.is_pending() } -> std::same_as<bool>;
  };

  export template<typename Sink>
  concept ansi_sink = requires(Sink sink) {
    { sink(std::declval<ttwhy::scanners::character_event>()) } -> std::same_as<void>;
    { sink(std::declval<ttwhy::scanners::control_event>()) } -> std::same_as<void>;
    { sink(std::declval<ttwhy::scanners::navigation_event>()) } -> std::same_as<void>;
  };

}  // namespace ttwhy