From 6333f79580aaa9bafedb450a07ab9e40832b6adb Mon Sep 17 00:00:00 2001
From: bluwy <bjornlu.dev@gmail.com>
Date: Sun, 30 Jan 2022 21:34:10 +0800
Subject: [PATCH] update types

---
 src/runtime/internal/lifecycle.ts | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/runtime/internal/lifecycle.ts b/src/runtime/internal/lifecycle.ts
index aac8ebe0b7..6f326b2b9e 100644
--- a/src/runtime/internal/lifecycle.ts
+++ b/src/runtime/internal/lifecycle.ts
@@ -27,9 +27,17 @@ export function onDestroy(fn: () => any) {
 	get_current_component().$$.on_destroy.push(fn);
 }
 
-export function createEventDispatcher<
-	EventMap extends {} = any
->(): <EventKey extends Extract<keyof EventMap, string>>(type: EventKey, detail?: EventMap[EventKey]) => void {
+interface DispatchOptions {
+	cancelable?: boolean;
+}
+
+export function createEventDispatcher<EventMap extends {} = any>(): <
+	EventKey extends Extract<keyof EventMap, string>
+>(
+	type: EventKey,
+	detail?: EventMap[EventKey],
+	options?: DispatchOptions
+) => void {
 	const component = get_current_component();
 
 	return (type: string, detail?: any, { cancelable = false } = {}): boolean => {