From f47cd0ac64cb6df6aedff79d9d23fa30b589cdcc Mon Sep 17 00:00:00 2001
From: Ivan Hofer <ivan.hofer@outlook.com>
Date: Wed, 20 Jul 2022 15:55:36 +0200
Subject: [PATCH] add `ComponentEvents` type

---
 src/runtime/internal/dev.ts | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/runtime/internal/dev.ts b/src/runtime/internal/dev.ts
index 5b00e7dc5b..6b302bb3ce 100644
--- a/src/runtime/internal/dev.ts
+++ b/src/runtime/internal/dev.ts
@@ -301,6 +301,25 @@ export type ComponentProps<Component extends SvelteComponent> = Component extend
 	? Props
 	: never;
 
+/**
+ * Convenience type to get the events the given component expects. Example:
+ * ```html
+ * <script lang="ts">
+ *    import type { ComponentEvents } from 'svelte';
+ *    import Component from './Component.svelte';
+ *
+ *    type $$Events = ComponentEvent<Component>;
+ * </script>
+ * 
+ * <div class="wrapper">
+ *    <Component on:close />
+ * </div>
+ * ```
+ */
+export type ComponentEvents<Component extends SvelteComponent> = Component extends SvelteComponentTyped<any, infer Events>
+	? Events
+	: never;
+
 export function loop_guard(timeout) {
 	const start = Date.now();
 	return () => {