fix: issue with stencil event type (#1728)

* fix: issue with stencil event type

* chore: update snapshots

* fix: add `Required` for events

* fix: add void as fallback for events

* chore: update snapshots

---------

Co-authored-by: Sami Jaber <[email protected]>

Author: nmerget

.changeset/neat-knives-search.md

@@ -0,0 +1,5 @@
+---
+'@builder.io/mitosis': patch
+---
+
+[stencil] Fix issue for `EventEmitter` using Parameters as type instead of ReturnType

packages/core/src/__tests__/__snapshots__/stencil.test.ts.snap

@@ -7545,8 +7545,12 @@ import {
   tag: \\"event-props-component\\",
 })
 export class EventPropsComponent {
-  @Event() getVoid: EventEmitter<ReturnType<Required<EventProps>[\\"onGetVoid\\"]>>;
-  @Event() enter: EventEmitter<ReturnType<Required<EventProps>[\\"onEnter\\"]>>;
+  @Event() getVoid: EventEmitter<
+    Parameters<Required<EventProps>[\\"onGetVoid\\"]>[number]
+  > | void;
+  @Event() enter: EventEmitter<
+    Parameters<Required<EventProps>[\\"onEnter\\"]>[number]
+  > | void;
 
   handleClick() {
     if (this.getVoid) {

packages/core/src/generators/stencil/helpers/index.ts

@@ -89,7 +89,7 @@ export const getPropsAsCode = ({
         // Stencil adds "on" to every `@Event` so we need to remove "on" from event props
         // https://stenciljs.com/docs/events#using-events-in-jsx
         const eventType = hasTyping
-          ? `EventEmitter<ReturnType<Required<${propsTypeRef}>["${item}"]>>`
+          ? `EventEmitter<Parameters<Required<${propsTypeRef}>["${item}"]>[number]> | void`
           : 'any';
 
         return `@Event() ${getEventNameWithoutOn(item)}: ${eventType}${defaultPropString}`;