warnings/errors

src/compiler/compile/compiler_errors.ts

@@ -310,8 +310,12 @@ export default {
 		code: 'directive-conflict',
 		message: `Cannot use ${directive1} and ${directive2} on the same element`
   	}),
-	too_much_forward_event_modifiers: {
+	invalid_forward_event_alias_count: {
-		code: 'too-much-forward-event-modifiers',
+		code: 'invalid-forward-event-alias-count',
-		message: 'Forward-event only accept one modifier (the forward alias)'
+		message: 'Forward-event accept only one modifier (the event alias)'
+	},
+	invalid_forward_event_alias_any: {
+		code: 'invalid-forward-event-alias-any',
+		message: 'The alias for on:* must be one of the following form: "prefix*" or "*suffix"'
 	},
 };

src/compiler/compile/compiler_warnings.ts

@@ -214,8 +214,8 @@ export default {
 		code: 'invalid-rest-eachblock-binding',
 		message: `...${rest_element_name} operator will create a new object and binding propogation with original object will not work`
 	}),
-	incorrect_forward_event_modifier: (modifiers: Set<string>) => ({
+	invalid_forward_event_alias: {
-		code: 'incorrect-forward-event-modifier',
+		code: 'invalid-forward-event-alias',
-		message: `Forward-event only accept one modifier for the forward alias. Event modifiers should not be used here : ${modifiers}`
+		message: 'Forward-event accept only one modifier : the event alias name'
-	})
+	}
 };

src/compiler/compile/nodes/EventHandler.ts

@@ -30,6 +30,19 @@ const passive_events = new Set([
 	'touchcancel'
 ]);
 
+
+function is_valid_any_alias_name(alias: string) {
+	if (alias === '*') {
+		return true;
+	}
+	let idx = alias.indexOf('*');
+	if (idx < 0) return false;
+	if (idx !== alias.lastIndexOf('*')) {
+		return false;
+	}
+	return idx === 0 || alias.endsWith('*');
+}
+
 export default class EventHandler extends Node {
 	type: 'EventHandler';
 	name: string;
@@ -115,10 +128,13 @@ export default class EventHandler extends Node {
 			}
 		} else {
 			if (this.aliasCount > 1) {
-				return this.component.error(this, compiler_errors.too_much_forward_event_modifiers);
+				return this.component.error(this, compiler_errors.invalid_forward_event_alias_count);
 			}
 			if (this.aliasName && valid_modifiers.has(this.aliasName)) {
-				this.component.warn(this, compiler_warnings.incorrect_forward_event_modifier(valid_modifiers));
+				this.component.warn(this, compiler_warnings.invalid_forward_event_alias);
+			}
+			if (this.name === '*' && !is_valid_any_alias_name(this.aliasName)) {
+				return this.component.error(this, compiler_errors.invalid_forward_event_alias_any);
 			}
 		}
 	}