From 22f6534081acfabdab4956d337604a21e7da5b64 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@gmail.com>
Date: Tue, 22 Sep 2026 18:56:44 +0200
Subject: lib: generalize concepts

---
 ttwhy/scanners/concepts.cppm | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

(limited to 'ttwhy/scanners/concepts.cppm')

diff --git a/ttwhy/scanners/concepts.cppm b/ttwhy/scanners/concepts.cppm
index 69d6459..5c29b5f 100644
--- a/ttwhy/scanners/concepts.cppm
+++ b/ttwhy/scanners/concepts.cppm
@@ -17,11 +17,14 @@ namespace ttwhy
     { 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>;
+  export template<typename Sink, typename Event>
+  concept event_sink = requires(Sink sink, Event event) {
+    { sink(event) } -> std::same_as<void>;
   };
 
+  export template<typename Sink>
+  concept terminal_event_sink =
+      event_sink<Sink, scanners::character_event> && event_sink<Sink, scanners::control_event> &&
+      event_sink<Sink, scanners::navigation_event>;
+
 }  // namespace ttwhy
-- 
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