fix: parameterize wrap method on Zone (#542)

mhevery · web-flow · commit f522e1bf6ddd · 2016-12-13T14:55:54.000-08:00
diff --git a/lib/zone.ts b/lib/zone.ts
@@ -177,7 +177,7 @@ interface Zone {
    * @param source A unique debug location of the API being wrapped.
    * @returns {function(): *} A function which will invoke the `callback` through [Zone.runGuarded].
    */
-  wrap(callback: Function, source: string): Function;
+  wrap<F extends Function>(callback: F, source: string): F;
   /**
    * Invokes a function in a given zone.
    *

Original file line number	Diff line number	Diff line change
`@@ -177,7 +177,7 @@ interface Zone {`
`177`	`177`	`* @param source A unique debug location of the API being wrapped.`
`178`	`178`	* @returns {function(): *} A function which will invoke the `callback` through [Zone.runGuarded].
`179`	`179`	`*/`
`180`		`- wrap(callback: Function, source: string): Function;`
	`180`	`+ wrap<F extends Function>(callback: F, source: string): F;`
`181`	`181`	`/**`
`182`	`182`	`* Invokes a function in a given zone.`
`183`	`183`	`*`