Add a type variable to Hook (#26)

mw/hook.d.ts

@@ -41,30 +41,30 @@
  *
  * @see https://doc.wikimedia.org/mediawiki-core/master/js/#!/api/mw.hook
  */
-interface Hook {
+interface Hook<T extends any[] = any[]> {
     /**
      * Register a hook handler
      *
      * @param {...Function} handler Function to bind.
      * @chainable
      */
-    add(...handler: Array<(...args: any[]) => any>): Hook;
+    add(...handler: Array<(...data: T) => any>): this;
 
     /**
      * Run a hook.
      *
      * @param {*} data
      * @chainable
      */
-    fire(data?: any): Hook;
+    fire(...data: T): this;
 
     /**
      * Unregister a hook handler
      *
      * @param {...Function} handler Function to unbind.
      * @chainable
      */
-    remove(handler: (...args: any[]) => any): Hook;
+    remove(...handler: Array<(...data: T) => any>): this;
 }
 
 declare global {
@@ -76,7 +76,7 @@ declare global {
          * @member mw
          * @see https://doc.wikimedia.org/mediawiki-core/master/js/#!/api/mw.hook
          */
-        function hook(event: string): Hook;
+        function hook<T extends any[] = any[]>(event: string): Hook<T>;
     }
 }
 

tslint.json

@@ -7,6 +7,7 @@
         "no-padding": false,
         "no-unnecessary-qualifier": false,
         "unified-signatures": false,
-        "no-redundant-jsdoc": false
+        "no-redundant-jsdoc": false,
+        "no-unnecessary-generics": false
     }
 }