Update createEmitExtendable to optionally receive emit function.

Author: jameseaster

lib/index.js

@@ -7,12 +7,17 @@ export default function install(app) {
   app.config.globalProperties.$emitExtendable = emitExtendable;
 }
 
-export function createEmitExtendable() {
+export function createEmitExtendable({emit}) {
+  if(!emit && !getCurrentInstance()) {
+    throw new TypeError('Emit function is not present.');
+  }
+  if(emit) {
+    return emitExtendable.bind({emit});
+  }
   return emitExtendable.bind(getCurrentInstance());
 }
 
-// Pass in the emit function from setup when using a Vue 3 composition api component
-export async function emitExtendable(name, event = {}, emit) {
+export async function emitExtendable(name, event = {}) {
   if(!(event && typeof event === 'object')) {
     throw new TypeError('"event" must be an object.');
   }
@@ -35,7 +40,7 @@ export async function emitExtendable(name, event = {}, emit) {
       }
       response = p;
     }
-  }, emit);
+  });
 
   // await any lifetime extensions
   await Promise.all(promises);
@@ -50,13 +55,7 @@ function _emit(...args) {
   }
   if(this?.emit) {
     return this.emit(...args);
-  } 
-  if(getCurrentInstance()) {
-    const {emit} = getCurrentInstance();
-    return emit(...args);
-  }
-  if(typeof args[2] === 'function') {
-    const emit = args[2];
-    return emit(...args.slice(0, 2));
   }
+  const {emit} = getCurrentInstance();
+  return emit(...args);
 }