refactor(ivy): ngcc - remove `formatProperty` from `EntryPointBundle` (#32052)

Remove the `formatProperty` property from the `EntryPointBundle`
interface, because the property is not directly related to that type.

It was only used in one place, when calling `fileWriter.writeBundle()`,
but we can pass `formatProperty` directrly to `writeBundle()`.

PR Close #32052

packages/compiler-cli/ngcc/src/main.ts

@@ -166,13 +166,12 @@ export function mainNgcc(
       }
 
       const bundle = makeEntryPointBundle(
-          fileSystem, entryPoint, formatPath, isCore, formatProperty, format, processDts,
+          fileSystem, entryPoint, formatPath, isCore, format, processDts, pathMappings, true);
-          pathMappings, true);
 
       logger.info(`Compiling ${entryPoint.name} : ${formatProperty} as ${format}`);
 
       const transformedFiles = transformer.transform(bundle);
-      fileWriter.writeBundle(entryPoint, bundle, transformedFiles);
+      fileWriter.writeBundle(entryPoint, bundle, transformedFiles, formatProperty);
 
       onTaskCompleted(task, TaskProcessingOutcome.Processed);
     };

packages/compiler-cli/ngcc/src/packages/entry_point_bundle.ts

@@ -10,7 +10,7 @@ import {AbsoluteFsPath, FileSystem, absoluteFrom} from '../../../src/ngtsc/file_
 import {NgtscCompilerHost} from '../../../src/ngtsc/file_system/src/compiler_host';
 import {PathMappings} from '../utils';
 import {BundleProgram, makeBundleProgram} from './bundle_program';
-import {EntryPoint, EntryPointFormat, EntryPointJsonProperty} from './entry_point';
+import {EntryPoint, EntryPointFormat} from './entry_point';
 import {NgccSourcesCompilerHost} from './ngcc_compiler_host';
 
 /**
@@ -19,7 +19,6 @@ import {NgccSourcesCompilerHost} from './ngcc_compiler_host';
  */
 export interface EntryPointBundle {
   entryPoint: EntryPoint;
-  formatProperty: EntryPointJsonProperty;
   format: EntryPointFormat;
   isCore: boolean;
   isFlatCore: boolean;
@@ -34,7 +33,6 @@ export interface EntryPointBundle {
  * @param entryPoint The entry-point that contains the bundle.
  * @param formatPath The path to the source files for this bundle.
  * @param isCore This entry point is the Angular core package.
- * @param formatProperty The property in the package.json that holds the formatPath.
  * @param format The underlying format of the bundle.
  * @param transformDts Whether to transform the typings along with this bundle.
  * @param pathMappings An optional set of mappings to use when compiling files.
@@ -43,8 +41,8 @@ export interface EntryPointBundle {
  */
 export function makeEntryPointBundle(
     fs: FileSystem, entryPoint: EntryPoint, formatPath: string, isCore: boolean,
-    formatProperty: EntryPointJsonProperty, format: EntryPointFormat, transformDts: boolean,
+    format: EntryPointFormat, transformDts: boolean, pathMappings?: PathMappings,
-    pathMappings?: PathMappings, mirrorDtsFromSrc: boolean = false): EntryPointBundle {
+    mirrorDtsFromSrc: boolean = false): EntryPointBundle {
   // Create the TS program and necessary helpers.
   const options: ts.CompilerOptions = {
     allowJs: true,
@@ -69,7 +67,7 @@ export function makeEntryPointBundle(
       null;
   const isFlatCore = isCore && src.r3SymbolsFile === null;
 
-  return {entryPoint, format, formatProperty, rootDirs, isCore, isFlatCore, src, dts};
+  return {entryPoint, format, rootDirs, isCore, isFlatCore, src, dts};
 }
 
 function computePotentialDtsFilesFromJsFiles(

packages/compiler-cli/ngcc/src/writing/file_writer.ts

@@ -6,7 +6,7 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-import {EntryPoint} from '../packages/entry_point';
+import {EntryPoint, EntryPointJsonProperty} from '../packages/entry_point';
 import {EntryPointBundle} from '../packages/entry_point_bundle';
 import {FileToWrite} from '../rendering/utils';
 
@@ -14,6 +14,7 @@ import {FileToWrite} from '../rendering/utils';
  * Responsible for writing out the transformed files to disk.
  */
 export interface FileWriter {
-  writeBundle(entryPoint: EntryPoint, bundle: EntryPointBundle, transformedFiles: FileToWrite[]):
+  writeBundle(
-      void;
+      entryPoint: EntryPoint, bundle: EntryPointBundle, transformedFiles: FileToWrite[],
+      formatProperty: EntryPointJsonProperty): void;
 }

packages/compiler-cli/ngcc/src/writing/in_place_file_writer.ts

@@ -7,7 +7,7 @@
  * found in the LICENSE file at https://angular.io/license
  */
 import {FileSystem, absoluteFrom, dirname} from '../../../src/ngtsc/file_system';
-import {EntryPoint} from '../packages/entry_point';
+import {EntryPoint, EntryPointJsonProperty} from '../packages/entry_point';
 import {EntryPointBundle} from '../packages/entry_point_bundle';
 import {FileToWrite} from '../rendering/utils';
 import {FileWriter} from './file_writer';
@@ -19,7 +19,9 @@ import {FileWriter} from './file_writer';
 export class InPlaceFileWriter implements FileWriter {
   constructor(protected fs: FileSystem) {}
 
-  writeBundle(_entryPoint: EntryPoint, _bundle: EntryPointBundle, transformedFiles: FileToWrite[]) {
+  writeBundle(
+      _entryPoint: EntryPoint, _bundle: EntryPointBundle, transformedFiles: FileToWrite[],
+      _formatProperty?: EntryPointJsonProperty) {
     transformedFiles.forEach(file => this.writeFileAndBackup(file));
   }
 

packages/compiler-cli/ngcc/src/writing/new_entry_point_file_writer.ts

@@ -25,12 +25,14 @@ const NGCC_DIRECTORY = '__ivy_ngcc__';
  * `InPlaceFileWriter`).
  */
 export class NewEntryPointFileWriter extends InPlaceFileWriter {
-  writeBundle(entryPoint: EntryPoint, bundle: EntryPointBundle, transformedFiles: FileToWrite[]) {
+  writeBundle(
+      entryPoint: EntryPoint, bundle: EntryPointBundle, transformedFiles: FileToWrite[],
+      formatProperty: EntryPointJsonProperty) {
     // The new folder is at the root of the overall package
     const ngccFolder = join(entryPoint.package, NGCC_DIRECTORY);
     this.copyBundle(bundle, entryPoint.package, ngccFolder);
     transformedFiles.forEach(file => this.writeFile(file, entryPoint.package, ngccFolder));
-    this.updatePackageJson(entryPoint, bundle.formatProperty, ngccFolder);
+    this.updatePackageJson(entryPoint, formatProperty, ngccFolder);
   }
 
   protected copyBundle(

packages/compiler-cli/ngcc/test/analysis/decoration_analyzer_spec.ts

@@ -96,8 +96,7 @@ runInEachFileSystem(() => {
         loadTestFiles(testFiles);
         loadFakeCore(getFileSystem());
         const rootFiles = getRootFiles(testFiles);
-        const bundle =
+        const bundle = makeTestEntryPointBundle('test-package', 'esm2015', false, rootFiles);
-            makeTestEntryPointBundle('test-package', 'es2015', 'esm2015', false, rootFiles);
         program = bundle.src.program;
 
         const reflectionHost =

packages/compiler-cli/ngcc/test/analysis/module_with_providers_analyzer_spec.ts

@@ -330,7 +330,7 @@ runInEachFileSystem(() => {
         loadTestFiles(TEST_PROGRAM);
         loadTestFiles(TEST_DTS_PROGRAM);
         const bundle = makeTestEntryPointBundle(
-            'test-package', 'esm2015', 'esm2015', false, getRootFiles(TEST_PROGRAM),
+            'test-package', 'esm2015', false, getRootFiles(TEST_PROGRAM),
             getRootFiles(TEST_DTS_PROGRAM));
         program = bundle.src.program;
         dtsProgram = bundle.dts;

packages/compiler-cli/ngcc/test/analysis/private_declarations_analyzer_spec.ts

@@ -236,8 +236,7 @@ runInEachFileSystem(() => {
     loadTestFiles(jsProgram);
     loadTestFiles(dtsProgram);
     const {src: {program}, dts} = makeTestEntryPointBundle(
-        'test-package', 'esm2015', 'esm2015', false, getRootFiles(jsProgram),
+        'test-package', 'esm2015', false, getRootFiles(jsProgram), getRootFiles(dtsProgram));
-        getRootFiles(dtsProgram));
     const host = new Esm2015ReflectionHost(new MockLogger(), false, program.getTypeChecker(), dts);
     const referencesRegistry = new NgccReferencesRegistry(host);
     const analyzer = new PrivateDeclarationsAnalyzer(host, referencesRegistry);

packages/compiler-cli/ngcc/test/analysis/switch_marker_analyzer_spec.ts

@@ -72,7 +72,7 @@ runInEachFileSystem(() => {
       it('should check for switchable markers in all the files of the program', () => {
         loadTestFiles(TEST_PROGRAM);
         const bundle = makeTestEntryPointBundle(
-            'test', 'esm2015', 'esm2015', false, [_('/node_modules/test/entrypoint.js')]);
+            'test', 'esm2015', false, [_('/node_modules/test/entrypoint.js')]);
         const program = bundle.src.program;
         const host = new Esm2015ReflectionHost(new MockLogger(), false, program.getTypeChecker());
         const analyzer = new SwitchMarkerAnalyzer(host, bundle.entryPoint.package);
@@ -103,7 +103,7 @@ runInEachFileSystem(() => {
       it('should ignore files that are outside the package', () => {
         loadTestFiles(TEST_PROGRAM);
         const bundle = makeTestEntryPointBundle(
-            'test', 'esm2015', 'esm2015', false, [_('/node_modules/test/entrypoint.js')]);
+            'test', 'esm2015', false, [_('/node_modules/test/entrypoint.js')]);
         const program = bundle.src.program;
         const host = new Esm2015ReflectionHost(new MockLogger(), false, program.getTypeChecker());
         const analyzer = new SwitchMarkerAnalyzer(host, bundle.entryPoint.package);

packages/compiler-cli/ngcc/test/helpers/utils.ts

@@ -9,7 +9,7 @@ import * as ts from 'typescript';
 import {AbsoluteFsPath, NgtscCompilerHost, absoluteFrom, getFileSystem} from '../../../src/ngtsc/file_system';
 import {TestFile} from '../../../src/ngtsc/file_system/testing';
 import {BundleProgram, makeBundleProgram} from '../../src/packages/bundle_program';
-import {EntryPoint, EntryPointFormat, EntryPointJsonProperty} from '../../src/packages/entry_point';
+import {EntryPoint, EntryPointFormat} from '../../src/packages/entry_point';
 import {EntryPointBundle} from '../../src/packages/entry_point_bundle';
 import {NgccSourcesCompilerHost} from '../../src/packages/ngcc_compiler_host';
 
@@ -32,19 +32,13 @@ export function makeTestEntryPoint(
  * @param dtsFiles The typings files to include the bundle.
  */
 export function makeTestEntryPointBundle(
-    packageName: string, formatProperty: EntryPointJsonProperty, format: EntryPointFormat,
+    packageName: string, format: EntryPointFormat, isCore: boolean, srcRootNames: AbsoluteFsPath[],
-    isCore: boolean, srcRootNames: AbsoluteFsPath[],
     dtsRootNames?: AbsoluteFsPath[]): EntryPointBundle {
   const entryPoint = makeTestEntryPoint(packageName);
   const src = makeTestBundleProgram(srcRootNames[0], isCore);
   const dts = dtsRootNames ? makeTestDtsBundleProgram(dtsRootNames[0], isCore) : null;
   const isFlatCore = isCore && src.r3SymbolsFile === null;
-  return {
+  return {entryPoint, format, rootDirs: [absoluteFrom('/')], src, dts, isCore, isFlatCore};
-    entryPoint,
-    formatProperty,
-    format,
-    rootDirs: [absoluteFrom('/')], src, dts, isCore, isFlatCore
-  };
 }
 
 export function makeTestBundleProgram(

packages/compiler-cli/ngcc/test/migrations/undecorated_parent_migration_spec.ts

@@ -161,7 +161,7 @@ runInEachFileSystem(() => {
     loadFakeCore(getFileSystem());
     const errors: ts.Diagnostic[] = [];
     const rootFiles = getRootFiles(testFiles);
-    const bundle = makeTestEntryPointBundle('test-package', 'es2015', 'esm2015', false, rootFiles);
+    const bundle = makeTestEntryPointBundle('test-package', 'esm2015', false, rootFiles);
     const program = bundle.src.program;
 
     const reflectionHost =

packages/compiler-cli/ngcc/test/packages/entry_point_bundle_spec.ts

@@ -144,8 +144,7 @@ runInEachFileSystem(() => {
            typings: absoluteFrom('/node_modules/test/index.d.ts'),
            compiledByAngular: true,
          };
-         const esm5bundle =
+         const esm5bundle = makeEntryPointBundle(fs, entryPoint, './index.js', false, 'esm5', true);
-             makeEntryPointBundle(fs, entryPoint, './index.js', false, 'esm5', 'esm5', true);
 
          expect(esm5bundle.src.program.getSourceFiles().map(sf => sf.fileName))
              .toEqual(jasmine.arrayWithExactContents([
@@ -192,7 +191,7 @@ runInEachFileSystem(() => {
            compiledByAngular: true,
          };
          const esm5bundle = makeEntryPointBundle(
-             fs, entryPoint, './index.js', false, 'esm5', 'esm5', /* transformDts */ true,
+             fs, entryPoint, './index.js', false, 'esm5', /* transformDts */ true,
              /* pathMappings */ undefined, /* mirrorDtsFromSrc */ true);
          expect(esm5bundle.src.program.getSourceFiles().map(sf => sf.fileName))
              .toContain(absoluteFrom('/node_modules/test/internal.js'));
@@ -213,7 +212,7 @@ runInEachFileSystem(() => {
            compiledByAngular: true,
          };
          const esm5bundle = makeEntryPointBundle(
-             fs, entryPoint, './index.js', false, 'esm5', 'esm5', /* transformDts */ true,
+             fs, entryPoint, './index.js', false, 'esm5', /* transformDts */ true,
              /* pathMappings */ undefined, /* mirrorDtsFromSrc */ false);
          expect(esm5bundle.src.program.getSourceFiles().map(sf => sf.fileName))
              .toContain(absoluteFrom('/node_modules/test/internal.js'));

packages/compiler-cli/ngcc/test/rendering/commonjs_rendering_formatter_spec.ts

@@ -149,8 +149,7 @@ exports.D = D;
       loadTestFiles([file]);
       const fs = getFileSystem();
       const logger = new MockLogger();
-      const bundle =
+      const bundle = makeTestEntryPointBundle('test-package', 'commonjs', false, [file.name]);
-          makeTestEntryPointBundle('test-package', 'module', 'commonjs', false, [file.name]);
       const typeChecker = bundle.src.program.getTypeChecker();
       const host = new CommonJsReflectionHost(logger, false, bundle.src.program, bundle.src.host);
       const referencesRegistry = new NgccReferencesRegistry(host);

packages/compiler-cli/ngcc/test/rendering/dts_renderer_spec.ts

@@ -61,8 +61,7 @@ function createTestRenderer(
   const fs = getFileSystem();
   const isCore = packageName === '@angular/core';
   const bundle = makeTestEntryPointBundle(
-      'test-package', 'es2015', 'esm2015', isCore, getRootFiles(files),
+      'test-package', 'esm2015', isCore, getRootFiles(files), dtsFiles && getRootFiles(dtsFiles));
-      dtsFiles && getRootFiles(dtsFiles));
   const typeChecker = bundle.src.program.getTypeChecker();
   const host = new Esm2015ReflectionHost(logger, isCore, typeChecker, bundle.dts);
   const referencesRegistry = new NgccReferencesRegistry(host);

packages/compiler-cli/ngcc/test/rendering/esm5_rendering_formatter_spec.ts

@@ -26,7 +26,7 @@ function setup(file: {name: AbsoluteFsPath, contents: string}) {
   loadTestFiles([file]);
   const fs = getFileSystem();
   const logger = new MockLogger();
-  const bundle = makeTestEntryPointBundle('test-package', 'module', 'esm5', false, [file.name]);
+  const bundle = makeTestEntryPointBundle('test-package', 'esm5', false, [file.name]);
   const typeChecker = bundle.src.program.getTypeChecker();
   const host = new Esm5ReflectionHost(logger, false, typeChecker);
   const referencesRegistry = new NgccReferencesRegistry(host);

packages/compiler-cli/ngcc/test/rendering/esm_rendering_formatter_spec.ts

@@ -31,8 +31,7 @@ function setup(files: TestFile[], dtsFiles?: TestFile[]) {
   }
   const logger = new MockLogger();
   const bundle = makeTestEntryPointBundle(
-      'test-package', 'es2015', 'esm2015', false, getRootFiles(files),
+      'test-package', 'esm2015', false, getRootFiles(files), dtsFiles && getRootFiles(dtsFiles)) !;
-      dtsFiles && getRootFiles(dtsFiles)) !;
   const typeChecker = bundle.src.program.getTypeChecker();
   const host = new Esm2015ReflectionHost(logger, false, typeChecker, bundle.dts);
   const referencesRegistry = new NgccReferencesRegistry(host);

packages/compiler-cli/ngcc/test/rendering/renderer_spec.ts

@@ -63,8 +63,7 @@ function createTestRenderer(
   const fs = getFileSystem();
   const isCore = packageName === '@angular/core';
   const bundle = makeTestEntryPointBundle(
-      'test-package', 'es2015', 'esm2015', isCore, getRootFiles(files),
+      'test-package', 'esm2015', isCore, getRootFiles(files), dtsFiles && getRootFiles(dtsFiles));
-      dtsFiles && getRootFiles(dtsFiles));
   const typeChecker = bundle.src.program.getTypeChecker();
   const host = new Esm2015ReflectionHost(logger, isCore, typeChecker, bundle.dts);
   const referencesRegistry = new NgccReferencesRegistry(host);

packages/compiler-cli/ngcc/test/rendering/umd_rendering_formatter_spec.ts

@@ -25,7 +25,7 @@ function setup(file: TestFile) {
   loadTestFiles([file]);
   const fs = getFileSystem();
   const logger = new MockLogger();
-  const bundle = makeTestEntryPointBundle('test-package', 'esm5', 'esm5', false, [file.name]);
+  const bundle = makeTestEntryPointBundle('test-package', 'esm5', false, [file.name]);
   const src = bundle.src;
   const host = new UmdReflectionHost(logger, false, src.program, src.host);
   const referencesRegistry = new NgccReferencesRegistry(host);

packages/compiler-cli/ngcc/test/writing/new_entry_point_file_writer_spec.ts

@@ -95,13 +95,16 @@ runInEachFileSystem(() => {
       });
 
       it('should write the modified files to a new folder', () => {
-        fileWriter.writeBundle(entryPoint, esm5bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm5bundle,
+            [
               {
                 path: _('/node_modules/test/esm5.js'),
                 contents: 'export function FooTop() {} // MODIFIED'
               },
               {path: _('/node_modules/test/esm5.js.map'), contents: 'MODIFIED MAPPING DATA'},
-        ]);
+            ],
+            'module');
         expect(fs.readFile(_('/node_modules/test/__ivy_ngcc__/esm5.js')))
             .toEqual('export function FooTop() {} // MODIFIED');
         expect(fs.readFile(_('/node_modules/test/esm5.js'))).toEqual('export function FooTop() {}');
@@ -111,12 +114,15 @@ runInEachFileSystem(() => {
       });
 
       it('should also copy unmodified files in the program', () => {
-        fileWriter.writeBundle(entryPoint, esm2015bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm2015bundle,
+            [
               {
                 path: _('/node_modules/test/es2015/foo.js'),
                 contents: 'export class FooTop {} // MODIFIED'
               },
-        ]);
+            ],
+            'es2015');
         expect(fs.readFile(_('/node_modules/test/__ivy_ngcc__/es2015/foo.js')))
             .toEqual('export class FooTop {} // MODIFIED');
         expect(fs.readFile(_('/node_modules/test/es2015/foo.js')))
@@ -128,22 +134,28 @@ runInEachFileSystem(() => {
       });
 
       it('should update the package.json properties', () => {
-        fileWriter.writeBundle(entryPoint, esm5bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm5bundle,
+            [
               {
                 path: _('/node_modules/test/esm5.js'),
                 contents: 'export function FooTop() {} // MODIFIED'
               },
-        ]);
+            ],
+            'module');
         expect(loadPackageJson(fs, '/node_modules/test')).toEqual(jasmine.objectContaining({
           module_ivy_ngcc: '__ivy_ngcc__/esm5.js',
         }));
 
-        fileWriter.writeBundle(entryPoint, esm2015bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm2015bundle,
+            [
               {
                 path: _('/node_modules/test/es2015/foo.js'),
                 contents: 'export class FooTop {} // MODIFIED'
               },
-        ]);
+            ],
+            'es2015');
         expect(loadPackageJson(fs, '/node_modules/test')).toEqual(jasmine.objectContaining({
           module_ivy_ngcc: '__ivy_ngcc__/esm5.js',
           es2015_ivy_ngcc: '__ivy_ngcc__/es2015/index.js',
@@ -151,13 +163,16 @@ runInEachFileSystem(() => {
       });
 
       it('should overwrite and backup typings files', () => {
-        fileWriter.writeBundle(entryPoint, esm2015bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm2015bundle,
+            [
               {
                 path: _('/node_modules/test/index.d.ts'),
                 contents: 'export declare class FooTop {} // MODIFIED'
               },
               {path: _('/node_modules/test/index.d.ts.map'), contents: 'MODIFIED MAPPING DATA'},
-        ]);
+            ],
+            'es2015');
         expect(fs.readFile(_('/node_modules/test/index.d.ts')))
             .toEqual('export declare class FooTop {} // MODIFIED');
         expect(fs.readFile(_('/node_modules/test/index.d.ts.__ivy_ngcc_bak')))
@@ -184,24 +199,30 @@ runInEachFileSystem(() => {
       });
 
       it('should write the modified file to a new folder', () => {
-        fileWriter.writeBundle(entryPoint, esm5bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm5bundle,
+            [
               {
                 path: _('/node_modules/test/a/esm5.js'),
                 contents: 'export function FooA() {} // MODIFIED'
               },
-        ]);
+            ],
+            'module');
         expect(fs.readFile(_('/node_modules/test/__ivy_ngcc__/a/esm5.js')))
             .toEqual('export function FooA() {} // MODIFIED');
         expect(fs.readFile(_('/node_modules/test/a/esm5.js'))).toEqual('export function FooA() {}');
       });
 
       it('should also copy unmodified files in the program', () => {
-        fileWriter.writeBundle(entryPoint, esm2015bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm2015bundle,
+            [
               {
                 path: _('/node_modules/test/a/es2015/foo.js'),
                 contents: 'export class FooA {} // MODIFIED'
               },
-        ]);
+            ],
+            'es2015');
         expect(fs.readFile(_('/node_modules/test/__ivy_ngcc__/a/es2015/foo.js')))
             .toEqual('export class FooA {} // MODIFIED');
         expect(fs.readFile(_('/node_modules/test/a/es2015/foo.js')))
@@ -213,22 +234,28 @@ runInEachFileSystem(() => {
       });
 
       it('should update the package.json properties', () => {
-        fileWriter.writeBundle(entryPoint, esm5bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm5bundle,
+            [
               {
                 path: _('/node_modules/test/a/esm5.js'),
                 contents: 'export function FooA() {} // MODIFIED'
               },
-        ]);
+            ],
+            'module');
         expect(loadPackageJson(fs, '/node_modules/test/a')).toEqual(jasmine.objectContaining({
           module_ivy_ngcc: '../__ivy_ngcc__/a/esm5.js',
         }));
 
-        fileWriter.writeBundle(entryPoint, esm2015bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm2015bundle,
+            [
               {
                 path: _('/node_modules/test/a/es2015/foo.js'),
                 contents: 'export class FooA {} // MODIFIED'
               },
-        ]);
+            ],
+            'es2015');
         expect(loadPackageJson(fs, '/node_modules/test/a')).toEqual(jasmine.objectContaining({
           module_ivy_ngcc: '../__ivy_ngcc__/a/esm5.js',
           es2015_ivy_ngcc: '../__ivy_ngcc__/a/es2015/index.js',
@@ -236,12 +263,15 @@ runInEachFileSystem(() => {
       });
 
       it('should overwrite and backup typings files', () => {
-        fileWriter.writeBundle(entryPoint, esm2015bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm2015bundle,
+            [
               {
                 path: _('/node_modules/test/a/index.d.ts'),
                 contents: 'export declare class FooA {} // MODIFIED'
               },
-        ]);
+            ],
+            'es2015');
         expect(fs.readFile(_('/node_modules/test/a/index.d.ts')))
             .toEqual('export declare class FooA {} // MODIFIED');
         expect(fs.readFile(_('/node_modules/test/a/index.d.ts.__ivy_ngcc_bak')))
@@ -262,12 +292,15 @@ runInEachFileSystem(() => {
       });
 
       it('should write the modified file to a new folder', () => {
-        fileWriter.writeBundle(entryPoint, esm5bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm5bundle,
+            [
               {
                 path: _('/node_modules/test/lib/esm5.js'),
                 contents: 'export function FooB() {} // MODIFIED'
               },
-        ]);
+            ],
+            'module');
         expect(fs.readFile(_('/node_modules/test/__ivy_ngcc__/lib/esm5.js')))
             .toEqual('export function FooB() {} // MODIFIED');
         expect(fs.readFile(_('/node_modules/test/lib/esm5.js')))
@@ -275,12 +308,15 @@ runInEachFileSystem(() => {
       });
 
       it('should also copy unmodified files in the program', () => {
-        fileWriter.writeBundle(entryPoint, esm2015bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm2015bundle,
+            [
               {
                 path: _('/node_modules/test/lib/es2015/foo.js'),
                 contents: 'export class FooB {} // MODIFIED'
               },
-        ]);
+            ],
+            'es2015');
         expect(fs.readFile(_('/node_modules/test/__ivy_ngcc__/lib/es2015/foo.js')))
             .toEqual('export class FooB {} // MODIFIED');
         expect(fs.readFile(_('/node_modules/test/lib/es2015/foo.js')))
@@ -293,43 +329,55 @@ runInEachFileSystem(() => {
 
       it('should not copy typings files within the package (i.e. from a different entry-point)',
          () => {
-           fileWriter.writeBundle(entryPoint, esm2015bundle, [
+           fileWriter.writeBundle(
+               entryPoint, esm2015bundle,
+               [
                  {
                    path: _('/node_modules/test/lib/es2015/foo.js'),
                    contents: 'export class FooB {} // MODIFIED'
                  },
-           ]);
+               ],
+               'es2015');
            expect(fs.exists(_('/node_modules/test/__ivy_ngcc__/a/index.d.ts'))).toEqual(false);
          });
 
       it('should not copy files outside of the package', () => {
-        fileWriter.writeBundle(entryPoint, esm2015bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm2015bundle,
+            [
               {
                 path: _('/node_modules/test/lib/es2015/foo.js'),
                 contents: 'export class FooB {} // MODIFIED'
               },
-        ]);
+            ],
+            'es2015');
         expect(fs.exists(_('/node_modules/test/other/index.d.ts'))).toEqual(false);
         expect(fs.exists(_('/node_modules/test/events/events.js'))).toEqual(false);
       });
 
       it('should update the package.json properties', () => {
-        fileWriter.writeBundle(entryPoint, esm5bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm5bundle,
+            [
               {
                 path: _('/node_modules/test/lib/esm5.js'),
                 contents: 'export function FooB() {} // MODIFIED'
               },
-        ]);
+            ],
+            'module');
         expect(loadPackageJson(fs, '/node_modules/test/b')).toEqual(jasmine.objectContaining({
           module_ivy_ngcc: '../__ivy_ngcc__/lib/esm5.js',
         }));
 
-        fileWriter.writeBundle(entryPoint, esm2015bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm2015bundle,
+            [
               {
                 path: _('/node_modules/test/lib/es2015/foo.js'),
                 contents: 'export class FooB {} // MODIFIED'
               },
-        ]);
+            ],
+            'es2015');
         expect(loadPackageJson(fs, '/node_modules/test/b')).toEqual(jasmine.objectContaining({
           module_ivy_ngcc: '../__ivy_ngcc__/lib/esm5.js',
           es2015_ivy_ngcc: '../__ivy_ngcc__/lib/es2015/index.js',
@@ -337,12 +385,15 @@ runInEachFileSystem(() => {
       });
 
       it('should overwrite and backup typings files', () => {
-        fileWriter.writeBundle(entryPoint, esm2015bundle, [
+        fileWriter.writeBundle(
+            entryPoint, esm2015bundle,
+            [
               {
                 path: _('/node_modules/test/typings/index.d.ts'),
                 contents: 'export declare class FooB {} // MODIFIED'
               },
-        ]);
+            ],
+            'es2015');
         expect(fs.readFile(_('/node_modules/test/typings/index.d.ts')))
             .toEqual('export declare class FooB {} // MODIFIED');
         expect(fs.readFile(_('/node_modules/test/typings/index.d.ts.__ivy_ngcc_bak')))
@@ -356,7 +407,6 @@ runInEachFileSystem(() => {
       fs: FileSystem, entryPoint: EntryPoint, formatProperty: EntryPointJsonProperty,
       format: EntryPointFormat): EntryPointBundle {
     return makeEntryPointBundle(
-        fs, entryPoint, entryPoint.packageJson[formatProperty] !, false, formatProperty, format,
+        fs, entryPoint, entryPoint.packageJson[formatProperty] !, false, format, true);
-        true);
   }
 });