refactor(optimization): update the optimization loader to handle lazy-loaded modules

Author: danbucholtz

src/webpack/optimization-loader-impl.ts

@@ -1,5 +1,5 @@
-import { normalize, resolve } from 'path';
-import { getContext, isSrcOrIonicOrIonicDeps } from '../util/helpers';
+import { extname, normalize, resolve } from 'path';
+import { changeExtension, getContext, isSrcOrIonicOrIonicDeps } from '../util/helpers';
 import { Logger } from '../logger/logger';
 
 /* This loader is purely for caching stuff */
@@ -9,6 +9,11 @@ export function optimizationLoader(source: string, map: any, webpackContex: any)
   var callback = webpackContex.async();
 
   const absolutePath = resolve(normalize(webpackContex.resourcePath));
+  if (extname(absolutePath) === '.ts') {
+    const jsFilePath = changeExtension(absolutePath, '.js');
+    const jsFile = context.fileCache.get(jsFilePath);
+    source = jsFile.content;
+  }
 
   Logger.debug(`[Webpack] optimization: processing the following file: ${absolutePath}`);