1a67d70bf8
Directive defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngDirectiveDef to dir. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
Note that the other "defs" (ngFactoryDef, etc) will be
prefixed and shortened in follow-up PRs, in an attempt to
limit how large and conflict-y this change is.
PR Close #33110
419 lines
20 KiB
TypeScript
419 lines
20 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import MagicString from 'magic-string';
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import * as ts from 'typescript';
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import {fromObject, generateMapFileComment, SourceMapConverter} from 'convert-source-map';
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import {absoluteFrom, getFileSystem} from '../../../src/ngtsc/file_system';
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import {TestFile, runInEachFileSystem} from '../../../src/ngtsc/file_system/testing';
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import {loadTestFiles} from '../../../test/helpers';
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import {Import, ImportManager} from '../../../src/ngtsc/translator';
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import {DecorationAnalyzer} from '../../src/analysis/decoration_analyzer';
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import {CompiledClass} from '../../src/analysis/types';
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import {NgccReferencesRegistry} from '../../src/analysis/ngcc_references_registry';
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import {ModuleWithProvidersInfo} from '../../src/analysis/module_with_providers_analyzer';
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import {PrivateDeclarationsAnalyzer, ExportInfo} from '../../src/analysis/private_declarations_analyzer';
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import {SwitchMarkerAnalyzer} from '../../src/analysis/switch_marker_analyzer';
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import {Esm2015ReflectionHost} from '../../src/host/esm2015_host';
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import {Renderer} from '../../src/rendering/renderer';
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import {MockLogger} from '../helpers/mock_logger';
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import {RenderingFormatter, RedundantDecoratorMap} from '../../src/rendering/rendering_formatter';
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import {makeTestEntryPointBundle, getRootFiles} from '../helpers/utils';
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class TestRenderingFormatter implements RenderingFormatter {
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addImports(output: MagicString, imports: Import[], sf: ts.SourceFile) {
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output.prepend('\n// ADD IMPORTS\n');
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}
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addExports(output: MagicString, baseEntryPointPath: string, exports: ExportInfo[]) {
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output.prepend('\n// ADD EXPORTS\n');
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}
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addConstants(output: MagicString, constants: string, file: ts.SourceFile): void {
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output.prepend('\n// ADD CONSTANTS\n');
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}
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addDefinitions(output: MagicString, compiledClass: CompiledClass, definitions: string) {
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output.prepend('\n// ADD DEFINITIONS\n');
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}
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removeDecorators(output: MagicString, decoratorsToRemove: RedundantDecoratorMap) {
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output.prepend('\n// REMOVE DECORATORS\n');
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}
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rewriteSwitchableDeclarations(output: MagicString, sourceFile: ts.SourceFile): void {
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output.prepend('\n// REWRITTEN DECLARATIONS\n');
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}
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addModuleWithProvidersParams(
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output: MagicString, moduleWithProviders: ModuleWithProvidersInfo[],
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importManager: ImportManager): void {
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output.prepend('\n// ADD MODUlE WITH PROVIDERS PARAMS\n');
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}
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}
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function createTestRenderer(
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packageName: string, files: TestFile[], dtsFiles?: TestFile[], mappingFiles?: TestFile[]) {
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const logger = new MockLogger();
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loadTestFiles(files);
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if (dtsFiles) {
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loadTestFiles(dtsFiles);
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}
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if (mappingFiles) {
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loadTestFiles(mappingFiles);
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}
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const fs = getFileSystem();
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const isCore = packageName === '@angular/core';
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const bundle = makeTestEntryPointBundle(
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'test-package', 'esm2015', isCore, getRootFiles(files), dtsFiles && getRootFiles(dtsFiles));
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const typeChecker = bundle.src.program.getTypeChecker();
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const host = new Esm2015ReflectionHost(logger, isCore, typeChecker, bundle.dts);
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const referencesRegistry = new NgccReferencesRegistry(host);
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const decorationAnalyses =
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new DecorationAnalyzer(fs, bundle, host, referencesRegistry).analyzeProgram();
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const switchMarkerAnalyses =
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new SwitchMarkerAnalyzer(host, bundle.entryPoint.package).analyzeProgram(bundle.src.program);
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const privateDeclarationsAnalyses =
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new PrivateDeclarationsAnalyzer(host, referencesRegistry).analyzeProgram(bundle.src.program);
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const testFormatter = new TestRenderingFormatter();
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spyOn(testFormatter, 'addExports').and.callThrough();
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spyOn(testFormatter, 'addImports').and.callThrough();
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spyOn(testFormatter, 'addDefinitions').and.callThrough();
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spyOn(testFormatter, 'addConstants').and.callThrough();
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spyOn(testFormatter, 'removeDecorators').and.callThrough();
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spyOn(testFormatter, 'rewriteSwitchableDeclarations').and.callThrough();
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spyOn(testFormatter, 'addModuleWithProvidersParams').and.callThrough();
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const renderer = new Renderer(testFormatter, fs, logger, bundle);
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return {renderer,
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testFormatter,
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decorationAnalyses,
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switchMarkerAnalyses,
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privateDeclarationsAnalyses,
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bundle};
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}
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runInEachFileSystem(() => {
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describe('Renderer', () => {
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let _: typeof absoluteFrom;
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let INPUT_PROGRAM: TestFile;
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let COMPONENT_PROGRAM: TestFile;
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let NGMODULE_PROGRAM: TestFile;
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let INPUT_PROGRAM_MAP: SourceMapConverter;
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let RENDERED_CONTENTS: string;
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let OUTPUT_PROGRAM_MAP: SourceMapConverter;
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let MERGED_OUTPUT_PROGRAM_MAP: SourceMapConverter;
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beforeEach(() => {
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_ = absoluteFrom;
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INPUT_PROGRAM = {
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name: _('/node_modules/test-package/src/file.js'),
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contents:
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`import { Directive } from '@angular/core';\nexport class A {\n foo(x) {\n return x;\n }\n}\nA.decorators = [\n { type: Directive, args: [{ selector: '[a]' }] }\n];\n`
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};
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COMPONENT_PROGRAM = {
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name: _('/node_modules/test-package/src/component.js'),
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contents:
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`import { Component } from '@angular/core';\nexport class A {}\nA.decorators = [\n { type: Component, args: [{ selector: 'a', template: '{{ person!.name }}' }] }\n];\n`
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};
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NGMODULE_PROGRAM = {
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name: _('/node_modules/test-package/src/ngmodule.js'),
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contents:
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`import { NgModule } from '@angular/core';\nexport class A {}\nA.decorators = [\n { type: NgModule, args: [{}] }\n];\n`
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};
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INPUT_PROGRAM_MAP = fromObject({
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'version': 3,
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'file': _('/node_modules/test-package/src/file.js'),
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'sourceRoot': '',
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'sources': [_('/node_modules/test-package/src/file.ts')],
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'names': [],
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'mappings':
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'AAAA,OAAO,EAAE,SAAS,EAAE,MAAM,eAAe,CAAC;AAC1C,MAAM;IACF,GAAG,CAAC,CAAS;QACT,OAAO,CAAC,CAAC;IACb,CAAC;;AACM,YAAU,GAAG;IAChB,EAAE,IAAI,EAAE,SAAS,EAAE,IAAI,EAAE,CAAC,EAAE,QAAQ,EAAE,KAAK,EAAE,CAAC,EAAE;CACnD,CAAC',
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'sourcesContent': [INPUT_PROGRAM.contents]
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});
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RENDERED_CONTENTS = `
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// ADD IMPORTS
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// ADD EXPORTS
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// ADD CONSTANTS
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// ADD DEFINITIONS
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// REMOVE DECORATORS
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` + INPUT_PROGRAM.contents;
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OUTPUT_PROGRAM_MAP = fromObject({
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'version': 3,
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'file': 'file.js',
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'sources': [_('/node_modules/test-package/src/file.js')],
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'sourcesContent': [INPUT_PROGRAM.contents],
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'names': [],
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'mappings': ';;;;;;;;;;AAAA;;;;;;;;;'
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});
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MERGED_OUTPUT_PROGRAM_MAP = fromObject({
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'version': 3,
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'sources': [_('/node_modules/test-package/src/file.ts')],
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'names': [],
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'mappings': ';;;;;;;;;;AAAA',
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'file': 'file.js',
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'sourcesContent': [INPUT_PROGRAM.contents]
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});
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});
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describe('renderProgram()', () => {
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it('should render the modified contents; and a new map file, if the original provided no map file.',
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() => {
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const {renderer, decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses} =
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createTestRenderer('test-package', [INPUT_PROGRAM]);
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const result = renderer.renderProgram(
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decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
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expect(result[0].path).toEqual(_('/node_modules/test-package/src/file.js'));
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expect(result[0].contents)
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.toEqual(RENDERED_CONTENTS + '\n' + generateMapFileComment('file.js.map'));
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expect(result[1].path).toEqual(_('/node_modules/test-package/src/file.js.map'));
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expect(result[1].contents).toEqual(OUTPUT_PROGRAM_MAP.toJSON());
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});
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it('should render as JavaScript', () => {
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const {renderer, decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses,
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testFormatter} = createTestRenderer('test-package', [COMPONENT_PROGRAM]);
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renderer.renderProgram(
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decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
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const addDefinitionsSpy = testFormatter.addDefinitions as jasmine.Spy;
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expect(addDefinitionsSpy.calls.first().args[2])
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.toEqual(`A.ngFactoryDef = function A_Factory(t) { return new (t || A)(); };
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A.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: A, selectors: [["a"]], decls: 1, vars: 1, template: function A_Template(rf, ctx) { if (rf & 1) {
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ɵngcc0.ɵɵtext(0);
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} if (rf & 2) {
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ɵngcc0.ɵɵtextInterpolate(ctx.person.name);
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} }, encapsulation: 2 });
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/*@__PURE__*/ ɵngcc0.ɵsetClassMetadata(A, [{
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type: Component,
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args: [{ selector: 'a', template: '{{ person!.name }}' }]
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}], null, null);`);
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});
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describe('calling RenderingFormatter methods', () => {
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it('should call addImports with the source code and info about the core Angular library.',
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() => {
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const {renderer, decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses,
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testFormatter} = createTestRenderer('test-package', [INPUT_PROGRAM]);
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const result = renderer.renderProgram(
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decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
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const addImportsSpy = testFormatter.addImports as jasmine.Spy;
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expect(addImportsSpy.calls.first().args[0].toString()).toEqual(RENDERED_CONTENTS);
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expect(addImportsSpy.calls.first().args[1]).toEqual([
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{specifier: '@angular/core', qualifier: 'ɵngcc0'}
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]);
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});
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it('should call addDefinitions with the source code, the analyzed class and the rendered definitions.',
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() => {
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const {renderer, decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses,
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testFormatter} = createTestRenderer('test-package', [INPUT_PROGRAM]);
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const result = renderer.renderProgram(
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decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
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const addDefinitionsSpy = testFormatter.addDefinitions as jasmine.Spy;
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expect(addDefinitionsSpy.calls.first().args[0].toString()).toEqual(RENDERED_CONTENTS);
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expect(addDefinitionsSpy.calls.first().args[1]).toEqual(jasmine.objectContaining({
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name: 'A',
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decorators: [jasmine.objectContaining({name: 'Directive'})]
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}));
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expect(addDefinitionsSpy.calls.first().args[2])
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.toEqual(`A.ngFactoryDef = function A_Factory(t) { return new (t || A)(); };
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A.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: A, selectors: [["", "a", ""]] });
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/*@__PURE__*/ ɵngcc0.ɵsetClassMetadata(A, [{
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type: Directive,
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args: [{ selector: '[a]' }]
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}], null, { foo: [] });`);
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});
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it('should call removeDecorators with the source code, a map of class decorators that have been analyzed',
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() => {
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const {renderer, decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses,
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testFormatter} = createTestRenderer('test-package', [INPUT_PROGRAM]);
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const result = renderer.renderProgram(
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decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
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const removeDecoratorsSpy = testFormatter.removeDecorators as jasmine.Spy;
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expect(removeDecoratorsSpy.calls.first().args[0].toString())
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.toEqual(RENDERED_CONTENTS);
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// Each map key is the TS node of the decorator container
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// Each map value is an array of TS nodes that are the decorators to remove
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const map = removeDecoratorsSpy.calls.first().args[1] as Map<ts.Node, ts.Node[]>;
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const keys = Array.from(map.keys());
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expect(keys.length).toEqual(1);
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expect(keys[0].getText())
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.toEqual(`[\n { type: Directive, args: [{ selector: '[a]' }] }\n]`);
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const values = Array.from(map.values());
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expect(values.length).toEqual(1);
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expect(values[0].length).toEqual(1);
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expect(values[0][0].getText())
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.toEqual(`{ type: Directive, args: [{ selector: '[a]' }] }`);
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});
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it('should render static fields before any additional statements', () => {
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const {renderer, decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses,
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testFormatter} = createTestRenderer('test-package', [NGMODULE_PROGRAM]);
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renderer.renderProgram(
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decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
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const addDefinitionsSpy = testFormatter.addDefinitions as jasmine.Spy;
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const definitions: string = addDefinitionsSpy.calls.first().args[2];
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const ngModuleDef = definitions.indexOf('ngModuleDef');
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expect(ngModuleDef).not.toEqual(-1, 'ngModuleDef should exist');
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const ngInjectorDef = definitions.indexOf('ngInjectorDef');
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expect(ngInjectorDef).not.toEqual(-1, 'ngInjectorDef should exist');
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const setClassMetadata = definitions.indexOf('setClassMetadata');
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expect(setClassMetadata).not.toEqual(-1, 'setClassMetadata call should exist');
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expect(setClassMetadata)
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.toBeGreaterThan(ngModuleDef, 'setClassMetadata should follow ngModuleDef');
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expect(setClassMetadata)
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.toBeGreaterThan(ngInjectorDef, 'setClassMetadata should follow ngInjectorDef');
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});
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it('should render classes without decorators if handler matches', () => {
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const {renderer, decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses,
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testFormatter} =
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createTestRenderer('test-package', [{
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name: _('/node_modules/test-package/src/file.js'),
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contents: `
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import { Directive, ViewChild } from '@angular/core';
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export class UndecoratedBase { test = null; }
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UndecoratedBase.propDecorators = {
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test: [{
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type: ViewChild,
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args: ["test", {static: true}]
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}],
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};
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`
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}]);
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renderer.renderProgram(
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decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
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const addDefinitionsSpy = testFormatter.addDefinitions as jasmine.Spy;
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expect(addDefinitionsSpy.calls.first().args[2])
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.toEqual(
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`UndecoratedBase.ngBaseDef = ɵngcc0.ɵɵdefineBase({ viewQuery: function (rf, ctx) { if (rf & 1) {
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ɵngcc0.ɵɵstaticViewQuery(_c0, true);
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} if (rf & 2) {
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var _t;
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ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.test = _t.first);
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} } });`);
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});
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it('should call renderImports after other abstract methods', () => {
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// This allows the other methods to add additional imports if necessary
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const {renderer, decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses,
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testFormatter} = createTestRenderer('test-package', [INPUT_PROGRAM]);
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const addExportsSpy = testFormatter.addExports as jasmine.Spy;
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const addDefinitionsSpy = testFormatter.addDefinitions as jasmine.Spy;
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const addConstantsSpy = testFormatter.addConstants as jasmine.Spy;
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const addImportsSpy = testFormatter.addImports as jasmine.Spy;
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renderer.renderProgram(
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decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
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expect(addExportsSpy).toHaveBeenCalledBefore(addImportsSpy);
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expect(addDefinitionsSpy).toHaveBeenCalledBefore(addImportsSpy);
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expect(addConstantsSpy).toHaveBeenCalledBefore(addImportsSpy);
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});
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});
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describe('source map merging', () => {
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it('should merge any inline source map from the original file and write the output as an inline source map',
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() => {
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const {decorationAnalyses, renderer, switchMarkerAnalyses,
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privateDeclarationsAnalyses} =
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createTestRenderer(
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'test-package', [{
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...INPUT_PROGRAM,
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contents: INPUT_PROGRAM.contents + '\n' + INPUT_PROGRAM_MAP.toComment()
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}]);
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const result = renderer.renderProgram(
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decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
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expect(result[0].path).toEqual(_('/node_modules/test-package/src/file.js'));
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expect(result[0].contents)
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.toEqual(RENDERED_CONTENTS + '\n' + MERGED_OUTPUT_PROGRAM_MAP.toComment());
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expect(result[1]).toBeUndefined();
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});
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it('should merge any external source map from the original file and write the output to an external source map',
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() => {
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const sourceFiles: TestFile[] = [{
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...INPUT_PROGRAM,
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contents: INPUT_PROGRAM.contents + '\n//# sourceMappingURL=file.js.map'
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}];
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const mappingFiles: TestFile[] =
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[{name: _(INPUT_PROGRAM.name + '.map'), contents: INPUT_PROGRAM_MAP.toJSON()}];
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const {decorationAnalyses, renderer, switchMarkerAnalyses,
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privateDeclarationsAnalyses} =
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createTestRenderer('test-package', sourceFiles, undefined, mappingFiles);
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const result = renderer.renderProgram(
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decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
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expect(result[0].path).toEqual(_('/node_modules/test-package/src/file.js'));
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expect(result[0].contents)
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.toEqual(RENDERED_CONTENTS + '\n' + generateMapFileComment('file.js.map'));
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expect(result[1].path).toEqual(_('/node_modules/test-package/src/file.js.map'));
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expect(JSON.parse(result[1].contents)).toEqual(MERGED_OUTPUT_PROGRAM_MAP.toObject());
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});
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});
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describe('@angular/core support', () => {
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it('should render relative imports in ESM bundles', () => {
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const CORE_FILE: TestFile = {
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name: _('/node_modules/test-package/src/core.js'),
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contents:
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`import { NgModule } from './ng_module';\nexport class MyModule {}\nMyModule.decorators = [\n { type: NgModule, args: [] }\n];\n`
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};
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const R3_SYMBOLS_FILE: TestFile = {
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// r3_symbols in the file name indicates that this is the path to rewrite core imports
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// to
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name: _('/node_modules/test-package/src/r3_symbols.js'),
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contents: `export const NgModule = () => null;`
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};
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// The package name of `@angular/core` indicates that we are compiling the core library.
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const {decorationAnalyses, renderer, switchMarkerAnalyses, privateDeclarationsAnalyses,
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testFormatter} = createTestRenderer('@angular/core', [CORE_FILE, R3_SYMBOLS_FILE]);
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renderer.renderProgram(
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decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
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const addDefinitionsSpy = testFormatter.addDefinitions as jasmine.Spy;
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expect(addDefinitionsSpy.calls.first().args[2])
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.toContain(`/*@__PURE__*/ ɵngcc0.setClassMetadata(`);
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const addImportsSpy = testFormatter.addImports as jasmine.Spy;
|
|
expect(addImportsSpy.calls.first().args[1]).toEqual([
|
|
{specifier: './r3_symbols', qualifier: 'ɵngcc0'}
|
|
]);
|
|
});
|
|
|
|
it('should render no imports in FESM bundles', () => {
|
|
const CORE_FILE: TestFile = {
|
|
name: _('/node_modules/test-package/src/core.js'),
|
|
contents: `export const NgModule = () => null;
|
|
export class MyModule {}\nMyModule.decorators = [\n { type: NgModule, args: [] }\n];\n`
|
|
};
|
|
|
|
const {decorationAnalyses, renderer, switchMarkerAnalyses, privateDeclarationsAnalyses,
|
|
testFormatter} = createTestRenderer('@angular/core', [CORE_FILE]);
|
|
renderer.renderProgram(
|
|
decorationAnalyses, switchMarkerAnalyses, privateDeclarationsAnalyses);
|
|
const addDefinitionsSpy = testFormatter.addDefinitions as jasmine.Spy;
|
|
expect(addDefinitionsSpy.calls.first().args[2])
|
|
.toContain(`/*@__PURE__*/ setClassMetadata(`);
|
|
const addImportsSpy = testFormatter.addImports as jasmine.Spy;
|
|
expect(addImportsSpy.calls.first().args[1]).toEqual([]);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|