added spread operator event bindings

src/compiler/compile/render_dom/index.ts

@@ -444,7 +444,7 @@ export default function dom(
 			unknown_props_check = b`
 				const writable_props = [${writable_props.map(prop => x`'${prop.export_name}'`)}];
 				@_Object.keys($$props).forEach(key => {
-					if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') @_console.warn(\`<${component.tag}> was created with unknown prop '\${key}'\`);
+					if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot' && key !== 'event:bindings') @_console.warn(\`<${component.tag}> was created with unknown prop '\${key}'\`);
 				});
 			`;
 		}

src/runtime/internal/Component.ts

@@ -237,6 +237,13 @@ if (typeof HTMLElement === 'function') {
 export class SvelteComponent {
 	$$: T$$;
 	$$set?: ($$props: any) => void;
+	eventBindings: any;
+
+	constructor(props) {
+		if (props && props.props && Object.prototype.hasOwnProperty.call(props.props, 'event:bindings')) {
+			this.eventBindings = props.props['event:bindings'];
+		}
+	}
 
 	$destroy() {
 		destroy_component(this, 1);

src/runtime/internal/dev.ts

@@ -155,7 +155,7 @@ export class SvelteComponentDev extends SvelteComponent {
 			throw new Error("'target' is a required option");
 		}
 
-		super();
+		super(options);
 	}
 
 	$destroy() {

src/runtime/internal/lifecycle.ts

@@ -34,6 +34,7 @@ export function createEventDispatcher<
 
 	return (type: string, detail?: any) => {
 		const callbacks = component.$$.callbacks[type];
+		const eventBinding = component.eventBindings && component.eventBindings.hasOwnProperty(type) ? component.eventBindings[type] : undefined;
 
 		if (callbacks) {
 			// TODO are there situations where events could be dispatched
@@ -43,6 +44,12 @@ export function createEventDispatcher<
 				fn.call(component, event);
 			});
 		}
+
+		if (eventBinding) {
+			// in a server (non-DOM) environment?
+			const event = custom_event(type, detail);
+			eventBinding.call(component, event);
+		}
 	};
 }