refactor(rollup): check for compiler before preprending ionic core code

check for compiler before preprending ionic core code

Author: danbucholtz

src/rollup.ts

@@ -1,7 +1,9 @@
-import { prependIonicGlobal } from './core/ionic-global';
 import { basename, join, isAbsolute, normalize, sep } from 'path';
+
 import * as rollupBundler from 'rollup';
 
+import { prependIonicGlobal } from './core/ionic-global';
+import { doesCompilerExist } from './core/bundle-components';
 import { Logger } from './logger/logger';
 import { ionicRollupResolverPlugin, PLUGIN_NAME } from './rollup/ionic-rollup-resolver-plugin';
 import { fillConfigDefaults, getUserConfigFile, replacePathVars } from './util/config';
@@ -91,10 +93,12 @@ export function rollupWorker(context: BuildContext, configFile: string): Promise
 
         const bundleOutput = bundle.generate(rollupConfig);
 
-        const ionicBundle = prependIonicGlobal(context, basename(rollupConfig.dest), bundleOutput.code);
+        if (doesCompilerExist(context)) {
+          const ionicBundle = prependIonicGlobal(context, basename(rollupConfig.dest), bundleOutput.code);
 
-        bundleOutput.code = ionicBundle.code;
-        bundleOutput.map = ionicBundle.map;
+          bundleOutput.code = ionicBundle.code;
+          bundleOutput.map = ionicBundle.map;
+        }
 
         // write the bundle
         const promises: Promise<any>[] = [];