TypeScript annotation fixes

SteveSandersonMS · SteveSandersonMS · commit 627473356552 · 2018-01-24T17:44:47.000-08:00
diff --git a/src/Microsoft.AspNetCore.SpaServices/npm/aspnet-webpack/src/WebpackDevMiddleware.ts b/src/Microsoft.AspNetCore.SpaServices/npm/aspnet-webpack/src/WebpackDevMiddleware.ts
@@ -50,7 +50,7 @@ interface WebpackConfigFunc {
 type WebpackConfigExport = WebpackConfigOrArrayOrThenable | WebpackConfigFunc;
 type WebpackConfigModuleExports = WebpackConfigExport | EsModuleExports<WebpackConfigExport>;
 
-function isThenable(obj: any) {
+function isThenable<T>(obj: any): obj is Thenable<T> {
     return obj && typeof (<Thenable<any>>obj).then === 'function';
 }
 
@@ -262,7 +262,7 @@ export function createWebpackDevServer(callback: CreateDevServerCallback, option
         webpackConfigExport = webpackConfigExport(options.suppliedOptions.EnvParam);
     }
 
-    const webpackConfigThenable = isThenable(webpackConfigExport)
+    const webpackConfigThenable: Thenable<WebpackConfigOrArray> = isThenable(webpackConfigExport)
         ? webpackConfigExport
         : { then: callback => callback(webpackConfigExport) };
 

Original file line number	Diff line number	Diff line change
`@@ -50,7 +50,7 @@ interface WebpackConfigFunc {`
`50`	`50`	`type WebpackConfigExport = WebpackConfigOrArrayOrThenable \| WebpackConfigFunc;`
`51`	`51`	`type WebpackConfigModuleExports = WebpackConfigExport \| EsModuleExports<WebpackConfigExport>;`
`52`	`52`
`53`		`-function isThenable(obj: any) {`
	`53`	`+function isThenable<T>(obj: any): obj is Thenable<T> {`
`54`	`54`	`return obj && typeof (<Thenable<any>>obj).then === 'function';`
`55`	`55`	`}`
`56`	`56`
`@@ -262,7 +262,7 @@ export function createWebpackDevServer(callback: CreateDevServerCallback, option`
`262`	`262`	`webpackConfigExport = webpackConfigExport(options.suppliedOptions.EnvParam);`
`263`	`263`	`}`
`264`	`264`
`265`		`- const webpackConfigThenable = isThenable(webpackConfigExport)`
	`265`	`+ const webpackConfigThenable: Thenable<WebpackConfigOrArray> = isThenable(webpackConfigExport)`
`266`	`266`	`? webpackConfigExport`
`267`	`267`	`: { then: callback => callback(webpackConfigExport) };`
`268`	`268`