fix: move a typescript specific logic in ast utils in order to avoid invalid import in JS applications

Author: DimitarTachev

Diff for: index.js

@@ -1,6 +1,5 @@
 const path = require("path");
 const { existsSync } = require("fs");
-const { findBootstrapModulePath } = require("./utils/ast-utils");
 const { ANDROID_APP_PATH } = require("./androidProjectHelpers");
 const {
     getPackageJson,
@@ -41,14 +40,6 @@ exports.getEntryModule = function (appDirectory) {
     return entry;
 };
 
-exports.getMainModulePath = function (entryFilePath) {
-    try {
-        return findBootstrapModulePath(entryFilePath);
-    } catch (e) {
-        return null;
-    }
-}
-
 exports.getAppPath = (platform, projectDir) => {
     if (isIos(platform)) {
         const appName = path.basename(projectDir);

Diff for: templates/webpack.angular.js

@@ -5,6 +5,7 @@ const nsWebpack = require("nativescript-dev-webpack");
 const nativescriptTarget = require("nativescript-dev-webpack/nativescript-target");
 const { nsReplaceBootstrap } = require("nativescript-dev-webpack/transformers/ns-replace-bootstrap");
 const { nsReplaceLazyLoader } = require("nativescript-dev-webpack/transformers/ns-replace-lazy-loader");
+const { getMainModulePath } = require("nativescript-dev-webpack/utils/ast-utils");
 const CleanWebpackPlugin = require("clean-webpack-plugin");
 const CopyWebpackPlugin = require("copy-webpack-plugin");
 const { BundleAnalyzerPlugin } = require("webpack-bundle-analyzer");
@@ -65,7 +66,7 @@ module.exports = env => {
     // directly from node_modules and the Angular modules loader won't be able to resolve the lazy routes
     // fixes https://github.com/NativeScript/nativescript-cli/issues/4024
     if (env.externals.indexOf("@angular/core") > -1) {
-        const appModuleRelativePath = nsWebpack.getMainModulePath(resolve(appFullPath, entryModule));
+        const appModuleRelativePath = getMainModulePath(resolve(appFullPath, entryModule));
         if (appModuleRelativePath) {
             const appModuleFolderPath = dirname(resolve(appFullPath, appModuleRelativePath));
             // include the lazy loader inside app module

Diff for: utils/ast-utils.ts

@@ -8,6 +8,14 @@ import * as ts from "typescript";
 import { readFileSync, existsSync } from "fs";
 import { collectDeepNodes } from "@ngtools/webpack/src/transformers";
 
+export function getMainModulePath(entryFilePath) {
+    try {
+        return findBootstrapModulePath(entryFilePath);
+    } catch (e) {
+        return null;
+    }
+}
+
 export function findBootstrapModuleCall(mainPath: string): ts.CallExpression | null {
     if (!existsSync(mainPath)) {
         throw new Error(`Main file (${mainPath}) not found`);