336 lines
15 KiB
TypeScript
336 lines
15 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 {dirname} from 'canonical-path';
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import MagicString from 'magic-string';
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import * as ts from 'typescript';
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import {AbsoluteFsPath} from '../../../src/ngtsc/path';
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import {DecorationAnalyzer} from '../../src/analysis/decoration_analyzer';
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import {NgccReferencesRegistry} from '../../src/analysis/ngcc_references_registry';
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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 {EsmRenderer} from '../../src/rendering/esm_renderer';
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import {makeTestEntryPointBundle} from '../helpers/utils';
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function setup(file: {name: string, contents: string}) {
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const dir = dirname(file.name);
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const bundle = makeTestEntryPointBundle('esm2015', false, [file]) !;
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const typeChecker = bundle.src.program.getTypeChecker();
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const host = new Esm2015ReflectionHost(false, typeChecker);
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const referencesRegistry = new NgccReferencesRegistry(host);
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const decorationAnalyses =
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new DecorationAnalyzer(
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bundle.src.program, bundle.src.options, bundle.src.host, typeChecker, host,
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referencesRegistry, [AbsoluteFsPath.fromUnchecked('/')], false)
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.analyzeProgram();
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const switchMarkerAnalyses = new SwitchMarkerAnalyzer(host).analyzeProgram(bundle.src.program);
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const renderer = new EsmRenderer(host, false, bundle, dir, dir);
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return {
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host,
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program: bundle.src.program,
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sourceFile: bundle.src.file, renderer, decorationAnalyses, switchMarkerAnalyses
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};
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}
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const PROGRAM = {
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name: '/some/file.js',
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contents: `
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/* A copyright notice */
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import {Directive} from '@angular/core';
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export class A {}
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A.decorators = [
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{ type: Directive, args: [{ selector: '[a]' }] },
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{ type: OtherA }
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];
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export class B {}
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B.decorators = [
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{ type: OtherB },
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{ type: Directive, args: [{ selector: '[b]' }] }
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];
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export class C {}
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C.decorators = [
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{ type: Directive, args: [{ selector: '[c]' }] },
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];
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let compileNgModuleFactory = compileNgModuleFactory__PRE_R3__;
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let badlyFormattedVariable = __PRE_R3__badlyFormattedVariable;
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function compileNgModuleFactory__PRE_R3__(injector, options, moduleType) {
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const compilerFactory = injector.get(CompilerFactory);
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const compiler = compilerFactory.createCompiler([options]);
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return compiler.compileModuleAsync(moduleType);
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}
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function compileNgModuleFactory__POST_R3__(injector, options, moduleType) {
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ngDevMode && assertNgModuleType(moduleType);
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return Promise.resolve(new R3NgModuleFactory(moduleType));
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}
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// Some other content`
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};
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const PROGRAM_DECORATE_HELPER = {
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name: '/some/file.js',
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contents: `
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import * as tslib_1 from "tslib";
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var D_1;
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/* A copyright notice */
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import { Directive } from '@angular/core';
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const OtherA = () => (node) => { };
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const OtherB = () => (node) => { };
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let A = class A {
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};
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A = tslib_1.__decorate([
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Directive({ selector: '[a]' }),
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OtherA()
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], A);
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export { A };
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let B = class B {
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};
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B = tslib_1.__decorate([
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OtherB(),
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Directive({ selector: '[b]' })
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], B);
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export { B };
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let C = class C {
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};
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C = tslib_1.__decorate([
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Directive({ selector: '[c]' })
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], C);
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export { C };
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let D = D_1 = class D {
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};
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D = D_1 = tslib_1.__decorate([
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Directive({ selector: '[d]', providers: [D_1] })
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], D);
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export { D };
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// Some other content`
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};
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describe('Esm2015Renderer', () => {
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describe('addImports', () => {
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it('should insert the given imports at the start of the source file', () => {
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const {renderer} = setup(PROGRAM);
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const output = new MagicString(PROGRAM.contents);
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renderer.addImports(output, [
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{specifier: '@angular/core', qualifier: 'i0'},
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{specifier: '@angular/common', qualifier: 'i1'}
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]);
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expect(output.toString()).toContain(`import * as i0 from '@angular/core';
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import * as i1 from '@angular/common';
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/* A copyright notice */`);
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});
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});
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describe('addExports', () => {
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it('should insert the given exports at the end of the source file', () => {
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const {renderer} = setup(PROGRAM);
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const output = new MagicString(PROGRAM.contents);
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renderer.addExports(output, PROGRAM.name.replace(/\.js$/, ''), [
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{from: '/some/a.js', dtsFrom: '/some/a.d.ts', identifier: 'ComponentA1'},
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{from: '/some/a.js', dtsFrom: '/some/a.d.ts', identifier: 'ComponentA2'},
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{from: '/some/foo/b.js', dtsFrom: '/some/foo/b.d.ts', identifier: 'ComponentB'},
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{from: PROGRAM.name, dtsFrom: PROGRAM.name, identifier: 'TopLevelComponent'},
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]);
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expect(output.toString()).toContain(`
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// Some other content
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export {ComponentA1} from './a';
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export {ComponentA2} from './a';
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export {ComponentB} from './foo/b';
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export {TopLevelComponent};`);
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});
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it('should not insert alias exports in js output', () => {
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const {renderer} = setup(PROGRAM);
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const output = new MagicString(PROGRAM.contents);
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renderer.addExports(output, PROGRAM.name.replace(/\.js$/, ''), [
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{from: '/some/a.js', alias: 'eComponentA1', identifier: 'ComponentA1'},
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{from: '/some/a.js', alias: 'eComponentA2', identifier: 'ComponentA2'},
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{from: '/some/foo/b.js', alias: 'eComponentB', identifier: 'ComponentB'},
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{from: PROGRAM.name, alias: 'eTopLevelComponent', identifier: 'TopLevelComponent'},
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]);
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const outputString = output.toString();
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expect(outputString).not.toContain(`{eComponentA1 as ComponentA1}`);
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expect(outputString).not.toContain(`{eComponentB as ComponentB}`);
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expect(outputString).not.toContain(`{eTopLevelComponent as TopLevelComponent}`);
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});
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});
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describe('addConstants', () => {
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it('should insert the given constants after imports in the source file', () => {
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const {renderer, program} = setup(PROGRAM);
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const file = program.getSourceFile('some/file.js');
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if (file === undefined) {
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throw new Error(`Could not find source file`);
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}
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const output = new MagicString(PROGRAM.contents);
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renderer.addConstants(output, 'const x = 3;', file);
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expect(output.toString()).toContain(`
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import {Directive} from '@angular/core';
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const x = 3;
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export class A {}`);
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});
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});
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describe('rewriteSwitchableDeclarations', () => {
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it('should switch marked declaration initializers', () => {
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const {renderer, program, switchMarkerAnalyses, sourceFile} = setup(PROGRAM);
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const file = program.getSourceFile('some/file.js');
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if (file === undefined) {
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throw new Error(`Could not find source file`);
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}
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const output = new MagicString(PROGRAM.contents);
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renderer.rewriteSwitchableDeclarations(
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output, file, switchMarkerAnalyses.get(sourceFile) !.declarations);
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expect(output.toString())
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.not.toContain(`let compileNgModuleFactory = compileNgModuleFactory__PRE_R3__;`);
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expect(output.toString())
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.toContain(`let badlyFormattedVariable = __PRE_R3__badlyFormattedVariable;`);
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expect(output.toString())
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.toContain(`let compileNgModuleFactory = compileNgModuleFactory__POST_R3__;`);
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expect(output.toString())
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.toContain(`function compileNgModuleFactory__PRE_R3__(injector, options, moduleType) {`);
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expect(output.toString())
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.toContain(`function compileNgModuleFactory__POST_R3__(injector, options, moduleType) {`);
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});
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});
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describe('addDefinitions', () => {
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it('should insert the definitions directly after the class declaration', () => {
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const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM);
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const output = new MagicString(PROGRAM.contents);
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const compiledClass =
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decorationAnalyses.get(sourceFile) !.compiledClasses.find(c => c.name === 'A') !;
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renderer.addDefinitions(output, compiledClass, 'SOME DEFINITION TEXT');
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expect(output.toString()).toContain(`
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export class A {}
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SOME DEFINITION TEXT
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A.decorators = [
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`);
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});
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});
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describe('removeDecorators', () => {
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describe('[static property declaration]', () => {
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it('should delete the decorator (and following comma) that was matched in the analysis',
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() => {
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const {decorationAnalyses, sourceFile, renderer} = setup(PROGRAM);
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const output = new MagicString(PROGRAM.contents);
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const compiledClass =
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decorationAnalyses.get(sourceFile) !.compiledClasses.find(c => c.name === 'A') !;
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const decorator = compiledClass.decorators[0];
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const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
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decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
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renderer.removeDecorators(output, decoratorsToRemove);
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expect(output.toString())
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.not.toContain(`{ type: Directive, args: [{ selector: '[a]' }] },`);
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expect(output.toString()).toContain(`{ type: OtherA }`);
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expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[b]' }] }`);
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expect(output.toString()).toContain(`{ type: OtherB }`);
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expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[c]' }] }`);
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});
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it('should delete the decorator (but cope with no trailing comma) that was matched in the analysis',
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() => {
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const {decorationAnalyses, sourceFile, renderer} = setup(PROGRAM);
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const output = new MagicString(PROGRAM.contents);
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const compiledClass =
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decorationAnalyses.get(sourceFile) !.compiledClasses.find(c => c.name === 'B') !;
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const decorator = compiledClass.decorators[0];
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const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
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decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
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renderer.removeDecorators(output, decoratorsToRemove);
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expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[a]' }] },`);
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expect(output.toString()).toContain(`{ type: OtherA }`);
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expect(output.toString())
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.not.toContain(`{ type: Directive, args: [{ selector: '[b]' }] }`);
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expect(output.toString()).toContain(`{ type: OtherB }`);
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expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[c]' }] }`);
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});
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it('should delete the decorator (and its container if there are no other decorators left) that was matched in the analysis',
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() => {
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const {decorationAnalyses, sourceFile, renderer} = setup(PROGRAM);
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const output = new MagicString(PROGRAM.contents);
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const compiledClass =
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decorationAnalyses.get(sourceFile) !.compiledClasses.find(c => c.name === 'C') !;
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const decorator = compiledClass.decorators[0];
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const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
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decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
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renderer.removeDecorators(output, decoratorsToRemove);
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expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[a]' }] },`);
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expect(output.toString()).toContain(`{ type: OtherA }`);
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expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[b]' }] }`);
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expect(output.toString()).toContain(`{ type: OtherB }`);
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expect(output.toString())
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.not.toContain(`{ type: Directive, args: [{ selector: '[c]' }] }`);
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expect(output.toString()).not.toContain(`C.decorators = [`);
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});
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});
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});
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describe('[__decorate declarations]', () => {
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it('should delete the decorator (and following comma) that was matched in the analysis', () => {
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const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM_DECORATE_HELPER);
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const output = new MagicString(PROGRAM_DECORATE_HELPER.contents);
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const compiledClass =
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decorationAnalyses.get(sourceFile) !.compiledClasses.find(c => c.name === 'A') !;
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const decorator = compiledClass.decorators.find(d => d.name === 'Directive') !;
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const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
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decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
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renderer.removeDecorators(output, decoratorsToRemove);
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expect(output.toString()).not.toContain(`Directive({ selector: '[a]' }),`);
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expect(output.toString()).toContain(`OtherA()`);
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expect(output.toString()).toContain(`Directive({ selector: '[b]' })`);
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expect(output.toString()).toContain(`OtherB()`);
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expect(output.toString()).toContain(`Directive({ selector: '[c]' })`);
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});
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it('should delete the decorator (but cope with no trailing comma) that was matched in the analysis',
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() => {
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const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM_DECORATE_HELPER);
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const output = new MagicString(PROGRAM_DECORATE_HELPER.contents);
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const compiledClass =
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decorationAnalyses.get(sourceFile) !.compiledClasses.find(c => c.name === 'B') !;
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const decorator = compiledClass.decorators.find(d => d.name === 'Directive') !;
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const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
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decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
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renderer.removeDecorators(output, decoratorsToRemove);
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expect(output.toString()).toContain(`Directive({ selector: '[a]' }),`);
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expect(output.toString()).toContain(`OtherA()`);
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expect(output.toString()).not.toContain(`Directive({ selector: '[b]' })`);
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expect(output.toString()).toContain(`OtherB()`);
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expect(output.toString()).toContain(`Directive({ selector: '[c]' })`);
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});
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it('should delete the decorator (and its container if there are not other decorators left) that was matched in the analysis',
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() => {
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const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM_DECORATE_HELPER);
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const output = new MagicString(PROGRAM_DECORATE_HELPER.contents);
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const compiledClass =
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decorationAnalyses.get(sourceFile) !.compiledClasses.find(c => c.name === 'C') !;
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const decorator = compiledClass.decorators.find(d => d.name === 'Directive') !;
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const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
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decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
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renderer.removeDecorators(output, decoratorsToRemove);
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expect(output.toString()).toContain(`Directive({ selector: '[a]' }),`);
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expect(output.toString()).toContain(`OtherA()`);
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expect(output.toString()).toContain(`Directive({ selector: '[b]' })`);
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expect(output.toString()).toContain(`OtherB()`);
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expect(output.toString()).not.toContain(`Directive({ selector: '[c]' })`);
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expect(output.toString()).not.toContain(`C = tslib_1.__decorate([`);
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expect(output.toString()).toContain(`let C = class C {\n};\nexport { C };`);
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});
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});
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});
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