1564 lines
62 KiB
TypeScript
1564 lines
62 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 * as ts from 'typescript';
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import {ClassMemberKind, Import} from '../../../src/ngtsc/reflection';
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import {Esm2015ReflectionHost} from '../../src/host/esm2015_host';
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import {getDeclaration, makeTestBundleProgram, makeTestProgram} from '../helpers/utils';
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import {expectTypeValueReferencesForParameters} from './util';
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const SOME_DIRECTIVE_FILE = {
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name: '/some_directive.js',
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contents: `
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import { Directive, Inject, InjectionToken, Input, HostListener, HostBinding } from '@angular/core';
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const INJECTED_TOKEN = new InjectionToken('injected');
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const ViewContainerRef = {};
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const TemplateRef = {};
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class SomeDirective {
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constructor(_viewContainer, _template, injected) {
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this.instanceProperty = 'instance';
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}
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instanceMethod() {}
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onClick() {}
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@HostBinding('class.foo')
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get isClassFoo() { return false; }
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static staticMethod() {}
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}
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SomeDirective.staticProperty = 'static';
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SomeDirective.decorators = [
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{ type: Directive, args: [{ selector: '[someDirective]' },] }
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];
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SomeDirective.ctorParameters = () => [
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{ type: ViewContainerRef, },
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{ type: TemplateRef, },
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{ type: undefined, decorators: [{ type: Inject, args: [INJECTED_TOKEN,] },] },
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];
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SomeDirective.propDecorators = {
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"input1": [{ type: Input },],
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"input2": [{ type: Input },],
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"target": [{ type: HostBinding, args: ['attr.target',] }, { type: Input },],
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"onClick": [{ type: HostListener, args: ['click',] },],
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};
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`,
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};
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const ACCESSORS_FILE = {
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name: '/accessors.js',
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contents: `
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import { Directive, Input, Output } from '@angular/core';
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class SomeDirective {
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set setterAndGetter(value) { this.value = value; }
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get setterAndGetter() { return null; }
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}
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SomeDirective.decorators = [
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{ type: Directive, args: [{ selector: '[someDirective]' },] }
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];
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SomeDirective.propDecorators = {
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"setterAndGetter": [{ type: Input },],
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};
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`,
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};
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const SIMPLE_CLASS_FILE = {
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name: '/simple_class.js',
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contents: `
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class EmptyClass {}
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class NoDecoratorConstructorClass {
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constructor(foo) {}
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}
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`,
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};
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const FOO_FUNCTION_FILE = {
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name: '/foo_function.js',
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contents: `
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import { Directive } from '@angular/core';
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function foo() {}
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foo.decorators = [
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{ type: Directive, args: [{ selector: '[ignored]' },] }
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];
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`,
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};
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const INVALID_DECORATORS_FILE = {
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name: '/invalid_decorators.js',
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contents: `
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import {Directive} from '@angular/core';
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class NotArrayLiteral {
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}
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NotArrayLiteral.decorators = () => [
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{ type: Directive, args: [{ selector: '[ignored]' },] },
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];
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class NotObjectLiteral {
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}
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NotObjectLiteral.decorators = [
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"This is not an object literal",
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{ type: Directive },
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];
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class NoTypeProperty {
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}
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NoTypeProperty.decorators = [
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{ notType: Directive },
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{ type: Directive },
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];
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class NotIdentifier {
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}
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NotIdentifier.decorators = [
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{ type: 'StringsLiteralsAreNotIdentifiers' },
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{ type: Directive },
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];
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`,
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};
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const INVALID_DECORATOR_ARGS_FILE = {
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name: '/invalid_decorator_args.js',
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contents: `
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import {Directive} from '@angular/core';
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class NoArgsProperty {
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}
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NoArgsProperty.decorators = [
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{ type: Directive },
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];
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const args = [{ selector: '[ignored]' },];
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class NoPropertyAssignment {
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}
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NoPropertyAssignment.decorators = [
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{ type: Directive, args },
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];
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class NotArrayLiteral {
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}
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NotArrayLiteral.decorators = [
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{ type: Directive, args: () => [{ selector: '[ignored]' },] },
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];
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`,
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};
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const INVALID_PROP_DECORATORS_FILE = {
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name: '/invalid_prop_decorators.js',
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contents: `
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import {Input} from '@angular/core';
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class NotObjectLiteral {
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}
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NotObjectLiteral.propDecorators = () => ({
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"prop": [{ type: Input },]
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});
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class NotObjectLiteralProp {
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}
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NotObjectLiteralProp.propDecorators = {
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"prop": [
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"This is not an object literal",
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{ type: Input },
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]
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};
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class NoTypeProperty {
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}
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NoTypeProperty.propDecorators = {
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"prop": [
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{ notType: Input },
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{ type: Input },
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]
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};
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class NotIdentifier {
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}
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NotIdentifier.propDecorators = {
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"prop": [
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{ type: 'StringsLiteralsAreNotIdentifiers' },
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{ type: Input },
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]
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};
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`,
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};
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const INVALID_PROP_DECORATOR_ARGS_FILE = {
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name: '/invalid_prop_decorator_args.js',
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contents: `
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import {Input} from '@angular/core';
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class NoArgsProperty {
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}
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NoArgsProperty.propDecorators = {
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"prop": [{ type: Input },]
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};
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const args = [{ selector: '[ignored]' },];
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class NoPropertyAssignment {
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}
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NoPropertyAssignment.propDecorators = {
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"prop": [{ type: Input, args },]
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};
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class NotArrayLiteral {
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}
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NotArrayLiteral.propDecorators = {
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"prop": [{ type: Input, args: () => [{ selector: '[ignored]' },] },],
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};
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`,
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};
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const INVALID_CTOR_DECORATORS_FILE = {
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name: '/invalid_ctor_decorators.js',
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contents: `
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import {Inject} from '@angular/core';
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class NoParameters {
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constructor() {
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}
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}
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const NotFromCoreDecorator = {};
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class NotFromCore {
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constructor(arg1) {
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}
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}
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NotFromCore.ctorParameters = () => [
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{ type: 'ParamType', decorators: [{ type: NotFromCoreDecorator },] },
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]
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class NotArrowFunction {
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constructor(arg1) {
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}
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}
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NotArrowFunction.ctorParameters = function() {
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return { type: 'ParamType', decorators: [{ type: Inject },] };
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};
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class NotArrayLiteral {
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constructor(arg1) {
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}
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}
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NotArrayLiteral.ctorParameters = () => 'StringsAreNotArrayLiterals';
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class NotObjectLiteral {
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constructor(arg1, arg2) {
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}
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}
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NotObjectLiteral.ctorParameters = () => [
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"This is not an object literal",
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{ type: 'ParamType', decorators: [{ type: Inject },] },
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];
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class NoTypeProperty {
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constructor(arg1, arg2) {
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}
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}
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NoTypeProperty.ctorParameters = () => [
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{
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type: 'ParamType',
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decorators: [
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{ notType: Inject },
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{ type: Inject },
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]
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},
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];
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class NotIdentifier {
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constructor(arg1, arg2) {
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}
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}
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NotIdentifier.ctorParameters = () => [
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{
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type: 'ParamType',
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decorators: [
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{ type: 'StringsLiteralsAreNotIdentifiers' },
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{ type: Inject },
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]
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},
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];
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`,
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};
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const INVALID_CTOR_DECORATOR_ARGS_FILE = {
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name: '/invalid_ctor_decorator_args.js',
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contents: `
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import {Inject} from '@angular/core';
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class NoArgsProperty {
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constructor(arg1) {
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}
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}
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NoArgsProperty.ctorParameters = () => [
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{ type: 'ParamType', decorators: [{ type: Inject },] },
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];
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const args = [{ selector: '[ignored]' },];
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class NoPropertyAssignment {
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constructor(arg1) {
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}
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}
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NoPropertyAssignment.ctorParameters = () => [
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{ type: 'ParamType', decorators: [{ type: Inject, args },] },
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];
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class NotArrayLiteral {
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constructor(arg1) {
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}
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}
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NotArrayLiteral.ctorParameters = () => [
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{ type: 'ParamType', decorators: [{ type: Inject, args: () => [{ selector: '[ignored]' },] },] },
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];
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`,
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};
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const IMPORTS_FILES = [
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{
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name: '/a.js',
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contents: `
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export const a = 'a';
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`,
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},
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{
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name: '/b.js',
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contents: `
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import {a} from './a.js';
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import {a as foo} from './a.js';
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const b = a;
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const c = foo;
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const d = b;
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`,
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},
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];
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const EXPORTS_FILES = [
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{
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name: '/a.js',
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contents: `
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export const a = 'a';
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`,
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},
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{
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name: '/b.js',
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contents: `
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import {Directive} from '@angular/core';
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import {a} from './a';
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import {a as foo} from './a';
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export {Directive} from '@angular/core';
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export {a} from './a';
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export const b = a;
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export const c = foo;
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export const d = b;
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export const e = 'e';
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export const DirectiveX = Directive;
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export class SomeClass {}
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`,
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},
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];
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const FUNCTION_BODY_FILE = {
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name: '/function_body.js',
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contents: `
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function foo(x) {
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return x;
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}
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function bar(x, y = 42) {
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return x + y;
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}
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function baz(x) {
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let y;
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if (y === void 0) { y = 42; }
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return x;
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}
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let y;
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function qux(x) {
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if (x === void 0) { y = 42; }
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return y;
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}
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function moo() {
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let x;
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if (x === void 0) { x = 42; }
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return x;
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}
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let x;
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function juu() {
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if (x === void 0) { x = 42; }
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return x;
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}
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`
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};
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const MARKER_FILE = {
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name: '/marker.js',
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contents: `
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let compileNgModuleFactory = compileNgModuleFactory__PRE_R3__;
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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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`
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};
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const DECORATED_FILES = [
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{
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name: '/primary.js',
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contents: `
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import {Directive} from '@angular/core';
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import {D} from '/secondary';
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class A {}
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A.decorators = [
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{ type: Directive, args: [{ selector: '[a]' }] }
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];
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function x() {}
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function y() {}
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class B {}
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B.decorators = [
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{ type: Directive, args: [{ selector: '[b]' }] }
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];
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class C {}
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export { A, x, C };
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`
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},
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{
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name: '/secondary.js',
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contents: `
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import {Directive} from '@angular/core';
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class D {}
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D.decorators = [
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{ type: Directive, args: [{ selector: '[d]' }] }
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];
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export {D};
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`
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}
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];
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const ARITY_CLASSES = [
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{
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name: '/src/class.js',
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contents: `
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export class NoTypeParam {}
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export class OneTypeParam {}
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export class TwoTypeParams {}
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`,
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},
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{
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name: '/typings/class.d.ts',
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contents: `
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export declare class NoTypeParam {}
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export declare class OneTypeParam<T> {}
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export declare class TwoTypeParams<T, K> {}
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`,
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},
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];
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const TYPINGS_SRC_FILES = [
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{
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name: '/src/index.js',
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contents:
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`import {InternalClass} from './internal'; export * from './class1'; export * from './class2';`
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},
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{name: '/src/class1.js', contents: 'export class Class1 {}\nexport class MissingClass1 {}'},
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{name: '/src/class2.js', contents: 'export class Class2 {}'},
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{name: '/src/func1.js', contents: 'export function mooFn() {}'},
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{name: '/src/internal.js', contents: 'export class InternalClass {}\nexport class Class2 {}'},
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{name: '/src/missing-class.js', contents: 'export class MissingClass2 {}'}, {
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name: '/src/flat-file.js',
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contents:
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'export class Class1 {}\nexport class MissingClass1 {}\nexport class MissingClass2 {}\class Class3 {}\nexport {Class3 as xClass3};',
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}
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];
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const TYPINGS_DTS_FILES = [
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{
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name: '/typings/index.d.ts',
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contents:
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`import {InternalClass} from './internal'; export * from './class1'; export * from './class2';`
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},
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{
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name: '/typings/class1.d.ts',
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contents: `export declare class Class1 {}\nexport declare class OtherClass {}`
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},
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{
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name: '/typings/class2.d.ts',
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contents:
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`export declare class Class2 {}\nexport declare interface SomeInterface {}\nexport {Class3 as xClass3} from './class3';`
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},
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{name: '/typings/func1.d.ts', contents: 'export declare function mooFn(): void;'},
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{
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name: '/typings/internal.d.ts',
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contents: `export declare class InternalClass {}\nexport declare class Class2 {}`
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},
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{name: '/typings/class3.d.ts', contents: `export declare class Class3 {}`},
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];
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const MODULE_WITH_PROVIDERS_PROGRAM = [
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{
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name: '/src/functions.js',
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contents: `
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import {ExternalModule} from './module';
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export class SomeService {}
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export class InternalModule {}
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export function aNumber() { return 42; }
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export function aString() { return 'foo'; }
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export function emptyObject() { return {}; }
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export function ngModuleIdentifier() { return { ngModule: InternalModule }; }
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export function ngModuleWithEmptyProviders() { return { ngModule: InternalModule, providers: [] }; }
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export function ngModuleWithProviders() { return { ngModule: InternalModule, providers: [SomeService] }; }
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export function onlyProviders() { return { providers: [SomeService] }; }
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export function ngModuleNumber() { return { ngModule: 42 }; }
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export function ngModuleString() { return { ngModule: 'foo' }; }
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export function ngModuleObject() { return { ngModule: { foo: 42 } }; }
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export function externalNgModule() { return { ngModule: ExternalModule }; }
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`
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},
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{
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name: '/src/methods.js',
|
|
contents: `
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import {ExternalModule} from './module';
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export class SomeService {}
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export class InternalModule {
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static aNumber() { return 42; }
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static aString() { return 'foo'; }
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static emptyObject() { return {}; }
|
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static ngModuleIdentifier() { return { ngModule: InternalModule }; }
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static ngModuleWithEmptyProviders() { return { ngModule: InternalModule, providers: [] }; }
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static ngModuleWithProviders() { return { ngModule: InternalModule, providers: [SomeService] }; }
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static onlyProviders() { return { providers: [SomeService] }; }
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static ngModuleNumber() { return { ngModule: 42 }; }
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static ngModuleString() { return { ngModule: 'foo' }; }
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static ngModuleObject() { return { ngModule: { foo: 42 } }; }
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static externalNgModule() { return { ngModule: ExternalModule }; }
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instanceNgModuleIdentifier() { return { ngModule: InternalModule }; }
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instanceNgModuleWithEmptyProviders() { return { ngModule: InternalModule, providers: [] }; }
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instanceNgModuleWithProviders() { return { ngModule: InternalModule, providers: [SomeService] }; }
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instanceExternalNgModule() { return { ngModule: ExternalModule }; }
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}
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`
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},
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{name: '/src/module', contents: 'export class ExternalModule {}'},
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];
|
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|
|
describe('Esm2015ReflectionHost', () => {
|
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|
|
describe('getDecoratorsOfDeclaration()', () => {
|
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it('should find the decorators on a class', () => {
|
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const program = makeTestProgram(SOME_DIRECTIVE_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
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const classNode =
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getDeclaration(program, SOME_DIRECTIVE_FILE.name, 'SomeDirective', ts.isClassDeclaration);
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const decorators = host.getDecoratorsOfDeclaration(classNode) !;
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|
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expect(decorators).toBeDefined();
|
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expect(decorators.length).toEqual(1);
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|
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const decorator = decorators[0];
|
|
expect(decorator.name).toEqual('Directive');
|
|
expect(decorator.import).toEqual({name: 'Directive', from: '@angular/core'});
|
|
expect(decorator.args !.map(arg => arg.getText())).toEqual([
|
|
'{ selector: \'[someDirective]\' }',
|
|
]);
|
|
});
|
|
|
|
it('should return null if the symbol is not a class', () => {
|
|
const program = makeTestProgram(FOO_FUNCTION_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const functionNode =
|
|
getDeclaration(program, FOO_FUNCTION_FILE.name, 'foo', ts.isFunctionDeclaration);
|
|
const decorators = host.getDecoratorsOfDeclaration(functionNode);
|
|
expect(decorators).toBe(null);
|
|
});
|
|
|
|
it('should return null if there are no decorators', () => {
|
|
const program = makeTestProgram(SIMPLE_CLASS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SIMPLE_CLASS_FILE.name, 'EmptyClass', ts.isClassDeclaration);
|
|
const decorators = host.getDecoratorsOfDeclaration(classNode);
|
|
expect(decorators).toBe(null);
|
|
});
|
|
|
|
it('should ignore `decorators` if it is not an array literal', () => {
|
|
const program = makeTestProgram(INVALID_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_DECORATORS_FILE.name, 'NotArrayLiteral', ts.isClassDeclaration);
|
|
const decorators = host.getDecoratorsOfDeclaration(classNode);
|
|
expect(decorators).toEqual([]);
|
|
});
|
|
|
|
it('should ignore decorator elements that are not object literals', () => {
|
|
const program = makeTestProgram(INVALID_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_DECORATORS_FILE.name, 'NotObjectLiteral', ts.isClassDeclaration);
|
|
const decorators = host.getDecoratorsOfDeclaration(classNode) !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0]).toEqual(jasmine.objectContaining({name: 'Directive'}));
|
|
});
|
|
|
|
it('should ignore decorator elements that have no `type` property', () => {
|
|
const program = makeTestProgram(INVALID_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_DECORATORS_FILE.name, 'NoTypeProperty', ts.isClassDeclaration);
|
|
const decorators = host.getDecoratorsOfDeclaration(classNode) !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0]).toEqual(jasmine.objectContaining({name: 'Directive'}));
|
|
});
|
|
|
|
it('should ignore decorator elements whose `type` value is not an identifier', () => {
|
|
const program = makeTestProgram(INVALID_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_DECORATORS_FILE.name, 'NotIdentifier', ts.isClassDeclaration);
|
|
const decorators = host.getDecoratorsOfDeclaration(classNode) !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0]).toEqual(jasmine.objectContaining({name: 'Directive'}));
|
|
});
|
|
|
|
it('should use `getImportOfIdentifier()` to retrieve import info', () => {
|
|
const mockImportInfo = { from: '@angular/core' } as Import;
|
|
const spy = spyOn(Esm2015ReflectionHost.prototype, 'getImportOfIdentifier')
|
|
.and.returnValue(mockImportInfo);
|
|
|
|
const program = makeTestProgram(SOME_DIRECTIVE_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SOME_DIRECTIVE_FILE.name, 'SomeDirective', ts.isClassDeclaration);
|
|
const decorators = host.getDecoratorsOfDeclaration(classNode) !;
|
|
|
|
expect(decorators.length).toEqual(1);
|
|
expect(decorators[0].import).toBe(mockImportInfo);
|
|
|
|
const typeIdentifier = spy.calls.mostRecent().args[0] as ts.Identifier;
|
|
expect(typeIdentifier.text).toBe('Directive');
|
|
});
|
|
|
|
describe('(returned decorators `args`)', () => {
|
|
it('should be an empty array if decorator has no `args` property', () => {
|
|
const program = makeTestProgram(INVALID_DECORATOR_ARGS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_DECORATOR_ARGS_FILE.name, 'NoArgsProperty', ts.isClassDeclaration);
|
|
const decorators = host.getDecoratorsOfDeclaration(classNode) !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0].name).toBe('Directive');
|
|
expect(decorators[0].args).toEqual([]);
|
|
});
|
|
|
|
it('should be an empty array if decorator\'s `args` has no property assignment', () => {
|
|
const program = makeTestProgram(INVALID_DECORATOR_ARGS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_DECORATOR_ARGS_FILE.name, 'NoPropertyAssignment',
|
|
ts.isClassDeclaration);
|
|
const decorators = host.getDecoratorsOfDeclaration(classNode) !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0].name).toBe('Directive');
|
|
expect(decorators[0].args).toEqual([]);
|
|
});
|
|
|
|
it('should be an empty array if `args` property value is not an array literal', () => {
|
|
const program = makeTestProgram(INVALID_DECORATOR_ARGS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_DECORATOR_ARGS_FILE.name, 'NotArrayLiteral', ts.isClassDeclaration);
|
|
const decorators = host.getDecoratorsOfDeclaration(classNode) !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0].name).toBe('Directive');
|
|
expect(decorators[0].args).toEqual([]);
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('getMembersOfClass()', () => {
|
|
it('should find decorated properties on a class', () => {
|
|
const program = makeTestProgram(SOME_DIRECTIVE_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SOME_DIRECTIVE_FILE.name, 'SomeDirective', ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
|
|
const input1 = members.find(member => member.name === 'input1') !;
|
|
expect(input1.kind).toEqual(ClassMemberKind.Property);
|
|
expect(input1.isStatic).toEqual(false);
|
|
expect(input1.decorators !.map(d => d.name)).toEqual(['Input']);
|
|
|
|
const input2 = members.find(member => member.name === 'input2') !;
|
|
expect(input2.kind).toEqual(ClassMemberKind.Property);
|
|
expect(input2.isStatic).toEqual(false);
|
|
expect(input1.decorators !.map(d => d.name)).toEqual(['Input']);
|
|
});
|
|
|
|
it('should find non decorated properties on a class', () => {
|
|
const program = makeTestProgram(SOME_DIRECTIVE_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SOME_DIRECTIVE_FILE.name, 'SomeDirective', ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
|
|
const instanceProperty = members.find(member => member.name === 'instanceProperty') !;
|
|
expect(instanceProperty.kind).toEqual(ClassMemberKind.Property);
|
|
expect(instanceProperty.isStatic).toEqual(false);
|
|
expect(ts.isBinaryExpression(instanceProperty.implementation !)).toEqual(true);
|
|
expect(instanceProperty.value !.getText()).toEqual(`'instance'`);
|
|
});
|
|
|
|
it('should handle equally named getter/setter pairs correctly', () => {
|
|
const program = makeTestProgram(ACCESSORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, ACCESSORS_FILE.name, 'SomeDirective', ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
|
|
const [combinedSetter, combinedGetter] =
|
|
members.filter(member => member.name === 'setterAndGetter');
|
|
expect(combinedSetter.kind).toEqual(ClassMemberKind.Setter);
|
|
expect(combinedSetter.isStatic).toEqual(false);
|
|
expect(ts.isSetAccessor(combinedSetter.implementation !)).toEqual(true);
|
|
expect(combinedSetter.value).toBeNull();
|
|
expect(combinedSetter.decorators !.map(d => d.name)).toEqual(['Input']);
|
|
expect(combinedGetter.kind).toEqual(ClassMemberKind.Getter);
|
|
expect(combinedGetter.isStatic).toEqual(false);
|
|
expect(ts.isGetAccessor(combinedGetter.implementation !)).toEqual(true);
|
|
expect(combinedGetter.value).toBeNull();
|
|
expect(combinedGetter.decorators !.map(d => d.name)).toEqual([]);
|
|
});
|
|
|
|
it('should find static methods on a class', () => {
|
|
const program = makeTestProgram(SOME_DIRECTIVE_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SOME_DIRECTIVE_FILE.name, 'SomeDirective', ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
|
|
const staticMethod = members.find(member => member.name === 'staticMethod') !;
|
|
expect(staticMethod.kind).toEqual(ClassMemberKind.Method);
|
|
expect(staticMethod.isStatic).toEqual(true);
|
|
expect(ts.isMethodDeclaration(staticMethod.implementation !)).toEqual(true);
|
|
});
|
|
|
|
it('should find static properties on a class', () => {
|
|
const program = makeTestProgram(SOME_DIRECTIVE_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SOME_DIRECTIVE_FILE.name, 'SomeDirective', ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
|
|
const staticProperty = members.find(member => member.name === 'staticProperty') !;
|
|
expect(staticProperty.kind).toEqual(ClassMemberKind.Property);
|
|
expect(staticProperty.isStatic).toEqual(true);
|
|
expect(ts.isPropertyAccessExpression(staticProperty.implementation !)).toEqual(true);
|
|
expect(staticProperty.value !.getText()).toEqual(`'static'`);
|
|
});
|
|
|
|
it('should throw if the symbol is not a class', () => {
|
|
const program = makeTestProgram(FOO_FUNCTION_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const functionNode =
|
|
getDeclaration(program, FOO_FUNCTION_FILE.name, 'foo', ts.isFunctionDeclaration);
|
|
expect(() => {
|
|
host.getMembersOfClass(functionNode);
|
|
}).toThrowError(`Attempted to get members of a non-class: "function foo() {}"`);
|
|
});
|
|
|
|
it('should return an empty array if there are no prop decorators', () => {
|
|
const program = makeTestProgram(SIMPLE_CLASS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SIMPLE_CLASS_FILE.name, 'EmptyClass', ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
|
|
expect(members).toEqual([]);
|
|
});
|
|
|
|
it('should not process decorated properties in `propDecorators` if it is not an object literal',
|
|
() => {
|
|
const program = makeTestProgram(INVALID_PROP_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_PROP_DECORATORS_FILE.name, 'NotObjectLiteral', ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
|
|
expect(members.map(member => member.name)).not.toContain('prop');
|
|
});
|
|
|
|
it('should ignore prop decorator elements that are not object literals', () => {
|
|
const program = makeTestProgram(INVALID_PROP_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_PROP_DECORATORS_FILE.name, 'NotObjectLiteralProp',
|
|
ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
const prop = members.find(m => m.name === 'prop') !;
|
|
const decorators = prop.decorators !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0]).toEqual(jasmine.objectContaining({name: 'Input'}));
|
|
});
|
|
|
|
it('should ignore prop decorator elements that have no `type` property', () => {
|
|
const program = makeTestProgram(INVALID_PROP_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_PROP_DECORATORS_FILE.name, 'NoTypeProperty', ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
const prop = members.find(m => m.name === 'prop') !;
|
|
const decorators = prop.decorators !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0]).toEqual(jasmine.objectContaining({name: 'Input'}));
|
|
});
|
|
|
|
it('should ignore prop decorator elements whose `type` value is not an identifier', () => {
|
|
const program = makeTestProgram(INVALID_PROP_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_PROP_DECORATORS_FILE.name, 'NotIdentifier', ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
const prop = members.find(m => m.name === 'prop') !;
|
|
const decorators = prop.decorators !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0]).toEqual(jasmine.objectContaining({name: 'Input'}));
|
|
});
|
|
|
|
it('should use `getImportOfIdentifier()` to retrieve import info', () => {
|
|
let callCount = 0;
|
|
const spy =
|
|
spyOn(Esm2015ReflectionHost.prototype, 'getImportOfIdentifier').and.callFake(() => {
|
|
callCount++;
|
|
return {name: `name${callCount}`, from: '@angular/core'};
|
|
});
|
|
|
|
const program = makeTestProgram(SOME_DIRECTIVE_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SOME_DIRECTIVE_FILE.name, 'SomeDirective', ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
|
|
expect(spy).toHaveBeenCalled();
|
|
expect(spy.calls.allArgs().map(arg => arg[0].getText())).toEqual([
|
|
'Input',
|
|
'Input',
|
|
'HostBinding',
|
|
'Input',
|
|
'HostListener',
|
|
]);
|
|
|
|
const member = members.find(member => member.name === 'input1') !;
|
|
expect(member.decorators !.length).toBe(1);
|
|
expect(member.decorators ![0].import).toEqual({name: 'name1', from: '@angular/core'});
|
|
});
|
|
|
|
describe('(returned prop decorators `args`)', () => {
|
|
it('should be an empty array if prop decorator has no `args` property', () => {
|
|
const program = makeTestProgram(INVALID_PROP_DECORATOR_ARGS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_PROP_DECORATOR_ARGS_FILE.name, 'NoArgsProperty',
|
|
ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
const prop = members.find(m => m.name === 'prop') !;
|
|
const decorators = prop.decorators !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0].name).toBe('Input');
|
|
expect(decorators[0].args).toEqual([]);
|
|
});
|
|
|
|
it('should be an empty array if prop decorator\'s `args` has no property assignment', () => {
|
|
const program = makeTestProgram(INVALID_PROP_DECORATOR_ARGS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_PROP_DECORATOR_ARGS_FILE.name, 'NoPropertyAssignment',
|
|
ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
const prop = members.find(m => m.name === 'prop') !;
|
|
const decorators = prop.decorators !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0].name).toBe('Input');
|
|
expect(decorators[0].args).toEqual([]);
|
|
});
|
|
|
|
it('should be an empty array if `args` property value is not an array literal', () => {
|
|
const program = makeTestProgram(INVALID_PROP_DECORATOR_ARGS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_PROP_DECORATOR_ARGS_FILE.name, 'NotArrayLiteral',
|
|
ts.isClassDeclaration);
|
|
const members = host.getMembersOfClass(classNode);
|
|
const prop = members.find(m => m.name === 'prop') !;
|
|
const decorators = prop.decorators !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0].name).toBe('Input');
|
|
expect(decorators[0].args).toEqual([]);
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('getConstructorParameters()', () => {
|
|
it('should find the decorated constructor parameters', () => {
|
|
const program = makeTestProgram(SOME_DIRECTIVE_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SOME_DIRECTIVE_FILE.name, 'SomeDirective', ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode) !;
|
|
|
|
expect(parameters).toBeDefined();
|
|
expect(parameters.map(parameter => parameter.name)).toEqual([
|
|
'_viewContainer', '_template', 'injected'
|
|
]);
|
|
expectTypeValueReferencesForParameters(parameters, ['ViewContainerRef', 'TemplateRef', null]);
|
|
});
|
|
|
|
it('should throw if the symbol is not a class', () => {
|
|
const program = makeTestProgram(FOO_FUNCTION_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const functionNode =
|
|
getDeclaration(program, FOO_FUNCTION_FILE.name, 'foo', ts.isFunctionDeclaration);
|
|
expect(() => { host.getConstructorParameters(functionNode); })
|
|
.toThrowError(
|
|
'Attempted to get constructor parameters of a non-class: "function foo() {}"');
|
|
});
|
|
|
|
it('should return `null` if there is no constructor', () => {
|
|
const program = makeTestProgram(SIMPLE_CLASS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SIMPLE_CLASS_FILE.name, 'EmptyClass', ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode);
|
|
expect(parameters).toBe(null);
|
|
});
|
|
|
|
it('should return an array even if there are no decorators', () => {
|
|
const program = makeTestProgram(SIMPLE_CLASS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, SIMPLE_CLASS_FILE.name, 'NoDecoratorConstructorClass', ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode) !;
|
|
|
|
expect(parameters).toEqual(jasmine.any(Array));
|
|
expect(parameters.length).toEqual(1);
|
|
expect(parameters[0].name).toEqual('foo');
|
|
expect(parameters[0].decorators).toBe(null);
|
|
});
|
|
|
|
it('should return an empty array if there are no constructor parameters', () => {
|
|
const program = makeTestProgram(INVALID_CTOR_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_CTOR_DECORATORS_FILE.name, 'NoParameters', ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode);
|
|
|
|
expect(parameters).toEqual([]);
|
|
});
|
|
|
|
it('should ignore decorators that are not imported from core', () => {
|
|
const program = makeTestProgram(INVALID_CTOR_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_CTOR_DECORATORS_FILE.name, 'NotFromCore', ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode) !;
|
|
|
|
expect(parameters.length).toBe(1);
|
|
expect(parameters[0]).toEqual(jasmine.objectContaining({
|
|
name: 'arg1',
|
|
decorators: [],
|
|
}));
|
|
});
|
|
|
|
it('should ignore `ctorParameters` if it is not an arrow function', () => {
|
|
const program = makeTestProgram(INVALID_CTOR_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_CTOR_DECORATORS_FILE.name, 'NotArrowFunction', ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode) !;
|
|
|
|
expect(parameters.length).toBe(1);
|
|
expect(parameters[0]).toEqual(jasmine.objectContaining({
|
|
name: 'arg1',
|
|
decorators: null,
|
|
}));
|
|
});
|
|
|
|
it('should ignore `ctorParameters` if it does not return an array literal', () => {
|
|
const program = makeTestProgram(INVALID_CTOR_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_CTOR_DECORATORS_FILE.name, 'NotArrayLiteral', ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode) !;
|
|
|
|
expect(parameters.length).toBe(1);
|
|
expect(parameters[0]).toEqual(jasmine.objectContaining({
|
|
name: 'arg1',
|
|
decorators: null,
|
|
}));
|
|
});
|
|
|
|
describe('synthesized constructors', () => {
|
|
function getConstructorParameters(constructor: string) {
|
|
const file = {
|
|
name: '/synthesized_constructors.js',
|
|
contents: `
|
|
class BaseClass {}
|
|
class TestClass extends BaseClass {
|
|
${constructor}
|
|
}
|
|
`,
|
|
};
|
|
|
|
const program = makeTestProgram(file);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(program, file.name, 'TestClass', ts.isClassDeclaration);
|
|
return host.getConstructorParameters(classNode);
|
|
}
|
|
|
|
it('recognizes super call as first statement', () => {
|
|
const parameters = getConstructorParameters(`
|
|
constructor() {
|
|
super(...arguments);
|
|
this.synthesizedProperty = null;
|
|
}`);
|
|
|
|
expect(parameters).toBeNull();
|
|
});
|
|
|
|
it('does not consider super call without spread element as synthesized', () => {
|
|
const parameters = getConstructorParameters(`
|
|
constructor() {
|
|
super(arguments);
|
|
}`);
|
|
|
|
expect(parameters !.length).toBe(0);
|
|
});
|
|
|
|
it('does not consider constructors with parameters as synthesized', () => {
|
|
const parameters = getConstructorParameters(`
|
|
constructor(arg) {
|
|
super(...arguments);
|
|
}`);
|
|
|
|
expect(parameters !.length).toBe(1);
|
|
});
|
|
|
|
it('does not consider manual super calls as synthesized', () => {
|
|
const parameters = getConstructorParameters(`
|
|
constructor() {
|
|
super();
|
|
}`);
|
|
|
|
expect(parameters !.length).toBe(0);
|
|
});
|
|
|
|
it('does not consider empty constructors as synthesized', () => {
|
|
const parameters = getConstructorParameters(`
|
|
constructor() {
|
|
}`);
|
|
|
|
expect(parameters !.length).toBe(0);
|
|
});
|
|
});
|
|
|
|
describe('(returned parameters `decorators`)', () => {
|
|
it('should ignore param decorator elements that are not object literals', () => {
|
|
const program = makeTestProgram(INVALID_CTOR_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_CTOR_DECORATORS_FILE.name, 'NotObjectLiteral', ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode);
|
|
|
|
expect(parameters !.length).toBe(2);
|
|
expect(parameters ![0]).toEqual(jasmine.objectContaining({
|
|
name: 'arg1',
|
|
decorators: null,
|
|
}));
|
|
expect(parameters ![1]).toEqual(jasmine.objectContaining({
|
|
name: 'arg2',
|
|
decorators: jasmine.any(Array) as any
|
|
}));
|
|
});
|
|
|
|
it('should ignore param decorator elements that have no `type` property', () => {
|
|
const program = makeTestProgram(INVALID_CTOR_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_CTOR_DECORATORS_FILE.name, 'NoTypeProperty', ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode);
|
|
const decorators = parameters ![0].decorators !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0]).toEqual(jasmine.objectContaining({name: 'Inject'}));
|
|
});
|
|
|
|
it('should ignore param decorator elements whose `type` value is not an identifier', () => {
|
|
const program = makeTestProgram(INVALID_CTOR_DECORATORS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_CTOR_DECORATORS_FILE.name, 'NotIdentifier', ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode);
|
|
const decorators = parameters ![0].decorators !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0]).toEqual(jasmine.objectContaining({name: 'Inject'}));
|
|
});
|
|
|
|
it('should use `getImportOfIdentifier()` to retrieve import info', () => {
|
|
const mockImportInfo: Import = {name: 'mock', from: '@angular/core'};
|
|
const spy = spyOn(Esm2015ReflectionHost.prototype, 'getImportOfIdentifier')
|
|
.and.returnValue(mockImportInfo);
|
|
|
|
const program = makeTestProgram(SOME_DIRECTIVE_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, SOME_DIRECTIVE_FILE.name, 'SomeDirective', ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode) !;
|
|
const decorators = parameters[2].decorators !;
|
|
|
|
expect(decorators.length).toEqual(1);
|
|
expect(decorators[0].import).toBe(mockImportInfo);
|
|
|
|
const typeIdentifier = spy.calls.mostRecent().args[0] as ts.Identifier;
|
|
expect(typeIdentifier.text).toBe('Inject');
|
|
});
|
|
});
|
|
|
|
describe('(returned parameters `decorators.args`)', () => {
|
|
it('should be an empty array if param decorator has no `args` property', () => {
|
|
const program = makeTestProgram(INVALID_CTOR_DECORATOR_ARGS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_CTOR_DECORATOR_ARGS_FILE.name, 'NoArgsProperty',
|
|
ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode);
|
|
expect(parameters !.length).toBe(1);
|
|
const decorators = parameters ![0].decorators !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0].name).toBe('Inject');
|
|
expect(decorators[0].args).toEqual([]);
|
|
});
|
|
|
|
it('should be an empty array if param decorator\'s `args` has no property assignment', () => {
|
|
const program = makeTestProgram(INVALID_CTOR_DECORATOR_ARGS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_CTOR_DECORATOR_ARGS_FILE.name, 'NoPropertyAssignment',
|
|
ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode);
|
|
const decorators = parameters ![0].decorators !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0].name).toBe('Inject');
|
|
expect(decorators[0].args).toEqual([]);
|
|
});
|
|
|
|
it('should be an empty array if `args` property value is not an array literal', () => {
|
|
const program = makeTestProgram(INVALID_CTOR_DECORATOR_ARGS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode = getDeclaration(
|
|
program, INVALID_CTOR_DECORATOR_ARGS_FILE.name, 'NotArrayLiteral',
|
|
ts.isClassDeclaration);
|
|
const parameters = host.getConstructorParameters(classNode);
|
|
const decorators = parameters ![0].decorators !;
|
|
|
|
expect(decorators.length).toBe(1);
|
|
expect(decorators[0].name).toBe('Inject');
|
|
expect(decorators[0].args).toEqual([]);
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('getDefinitionOfFunction()', () => {
|
|
it('should return an object describing the function declaration passed as an argument', () => {
|
|
const program = makeTestProgram(FUNCTION_BODY_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
|
|
const fooNode =
|
|
getDeclaration(program, FUNCTION_BODY_FILE.name, 'foo', ts.isFunctionDeclaration) !;
|
|
const fooDef = host.getDefinitionOfFunction(fooNode);
|
|
expect(fooDef.node).toBe(fooNode);
|
|
expect(fooDef.body !.length).toEqual(1);
|
|
expect(fooDef.body ![0].getText()).toEqual(`return x;`);
|
|
expect(fooDef.parameters.length).toEqual(1);
|
|
expect(fooDef.parameters[0].name).toEqual('x');
|
|
expect(fooDef.parameters[0].initializer).toBe(null);
|
|
|
|
const barNode =
|
|
getDeclaration(program, FUNCTION_BODY_FILE.name, 'bar', ts.isFunctionDeclaration) !;
|
|
const barDef = host.getDefinitionOfFunction(barNode);
|
|
expect(barDef.node).toBe(barNode);
|
|
expect(barDef.body !.length).toEqual(1);
|
|
expect(ts.isReturnStatement(barDef.body ![0])).toBeTruthy();
|
|
expect(barDef.body ![0].getText()).toEqual(`return x + y;`);
|
|
expect(barDef.parameters.length).toEqual(2);
|
|
expect(barDef.parameters[0].name).toEqual('x');
|
|
expect(fooDef.parameters[0].initializer).toBe(null);
|
|
expect(barDef.parameters[1].name).toEqual('y');
|
|
expect(barDef.parameters[1].initializer !.getText()).toEqual('42');
|
|
|
|
const bazNode =
|
|
getDeclaration(program, FUNCTION_BODY_FILE.name, 'baz', ts.isFunctionDeclaration) !;
|
|
const bazDef = host.getDefinitionOfFunction(bazNode);
|
|
expect(bazDef.node).toBe(bazNode);
|
|
expect(bazDef.body !.length).toEqual(3);
|
|
expect(bazDef.parameters.length).toEqual(1);
|
|
expect(bazDef.parameters[0].name).toEqual('x');
|
|
expect(bazDef.parameters[0].initializer).toBe(null);
|
|
|
|
const quxNode =
|
|
getDeclaration(program, FUNCTION_BODY_FILE.name, 'qux', ts.isFunctionDeclaration) !;
|
|
const quxDef = host.getDefinitionOfFunction(quxNode);
|
|
expect(quxDef.node).toBe(quxNode);
|
|
expect(quxDef.body !.length).toEqual(2);
|
|
expect(quxDef.parameters.length).toEqual(1);
|
|
expect(quxDef.parameters[0].name).toEqual('x');
|
|
expect(quxDef.parameters[0].initializer).toBe(null);
|
|
|
|
const mooNode =
|
|
getDeclaration(program, FUNCTION_BODY_FILE.name, 'moo', ts.isFunctionDeclaration) !;
|
|
const mooDef = host.getDefinitionOfFunction(mooNode);
|
|
expect(mooDef.node).toBe(mooNode);
|
|
expect(mooDef.body !.length).toEqual(3);
|
|
expect(mooDef.parameters).toEqual([]);
|
|
|
|
const juuNode =
|
|
getDeclaration(program, FUNCTION_BODY_FILE.name, 'juu', ts.isFunctionDeclaration) !;
|
|
const juuDef = host.getDefinitionOfFunction(juuNode);
|
|
expect(juuDef.node).toBe(juuNode);
|
|
expect(juuDef.body !.length).toEqual(2);
|
|
expect(juuDef.parameters).toEqual([]);
|
|
});
|
|
});
|
|
|
|
describe('getImportOfIdentifier()', () => {
|
|
it('should find the import of an identifier', () => {
|
|
const program = makeTestProgram(...IMPORTS_FILES);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const variableNode =
|
|
getDeclaration(program, IMPORTS_FILES[1].name, 'b', ts.isVariableDeclaration);
|
|
const importOfIdent = host.getImportOfIdentifier(variableNode.initializer as ts.Identifier);
|
|
|
|
expect(importOfIdent).toEqual({name: 'a', from: './a.js'});
|
|
});
|
|
|
|
it('should find the name by which the identifier was exported, not imported', () => {
|
|
const program = makeTestProgram(...IMPORTS_FILES);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const variableNode =
|
|
getDeclaration(program, IMPORTS_FILES[1].name, 'c', ts.isVariableDeclaration);
|
|
const importOfIdent = host.getImportOfIdentifier(variableNode.initializer as ts.Identifier);
|
|
|
|
expect(importOfIdent).toEqual({name: 'a', from: './a.js'});
|
|
});
|
|
|
|
it('should return null if the identifier was not imported', () => {
|
|
const program = makeTestProgram(...IMPORTS_FILES);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const variableNode =
|
|
getDeclaration(program, IMPORTS_FILES[1].name, 'd', ts.isVariableDeclaration);
|
|
const importOfIdent = host.getImportOfIdentifier(variableNode.initializer as ts.Identifier);
|
|
|
|
expect(importOfIdent).toBeNull();
|
|
});
|
|
});
|
|
|
|
describe('getDeclarationOfIdentifier()', () => {
|
|
it('should return the declaration of a locally defined identifier', () => {
|
|
const program = makeTestProgram(SOME_DIRECTIVE_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SOME_DIRECTIVE_FILE.name, 'SomeDirective', ts.isClassDeclaration);
|
|
const ctrDecorators = host.getConstructorParameters(classNode) !;
|
|
const identifierOfViewContainerRef = (ctrDecorators[0].typeValueReference !as{
|
|
local: true,
|
|
expression: ts.Identifier,
|
|
defaultImportStatement: null,
|
|
}).expression;
|
|
|
|
const expectedDeclarationNode = getDeclaration(
|
|
program, SOME_DIRECTIVE_FILE.name, 'ViewContainerRef', ts.isVariableDeclaration);
|
|
const actualDeclaration = host.getDeclarationOfIdentifier(identifierOfViewContainerRef);
|
|
expect(actualDeclaration).not.toBe(null);
|
|
expect(actualDeclaration !.node).toBe(expectedDeclarationNode);
|
|
expect(actualDeclaration !.viaModule).toBe(null);
|
|
});
|
|
|
|
it('should return the declaration of an externally defined identifier', () => {
|
|
const program = makeTestProgram(SOME_DIRECTIVE_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const classNode =
|
|
getDeclaration(program, SOME_DIRECTIVE_FILE.name, 'SomeDirective', ts.isClassDeclaration);
|
|
const classDecorators = host.getDecoratorsOfDeclaration(classNode) !;
|
|
const identifierOfDirective = ((classDecorators[0].node as ts.ObjectLiteralExpression)
|
|
.properties[0] as ts.PropertyAssignment)
|
|
.initializer as ts.Identifier;
|
|
|
|
const expectedDeclarationNode = getDeclaration(
|
|
program, 'node_modules/@angular/core/index.ts', 'Directive', ts.isVariableDeclaration);
|
|
const actualDeclaration = host.getDeclarationOfIdentifier(identifierOfDirective);
|
|
expect(actualDeclaration).not.toBe(null);
|
|
expect(actualDeclaration !.node).toBe(expectedDeclarationNode);
|
|
expect(actualDeclaration !.viaModule).toBe('@angular/core');
|
|
});
|
|
});
|
|
|
|
describe('getExportsOfModule()', () => {
|
|
it('should return a map of all the exports from a given module', () => {
|
|
const program = makeTestProgram(...EXPORTS_FILES);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const file = program.getSourceFile(EXPORTS_FILES[1].name) !;
|
|
const exportDeclarations = host.getExportsOfModule(file);
|
|
expect(exportDeclarations).not.toBe(null);
|
|
expect(Array.from(exportDeclarations !.keys())).toEqual([
|
|
'Directive',
|
|
'a',
|
|
'b',
|
|
'c',
|
|
'd',
|
|
'e',
|
|
'DirectiveX',
|
|
'SomeClass',
|
|
]);
|
|
|
|
const values = Array.from(exportDeclarations !.values())
|
|
.map(declaration => [declaration.node.getText(), declaration.viaModule]);
|
|
expect(values).toEqual([
|
|
// TODO clarify what is expected here...
|
|
// [`Directive = callableClassDecorator()`, '@angular/core'],
|
|
[`Directive = callableClassDecorator()`, null],
|
|
[`a = 'a'`, null],
|
|
[`b = a`, null],
|
|
[`c = foo`, null],
|
|
[`d = b`, null],
|
|
[`e = 'e'`, null],
|
|
[`DirectiveX = Directive`, null],
|
|
['export class SomeClass {}', null],
|
|
]);
|
|
});
|
|
});
|
|
|
|
describe('isClass()', () => {
|
|
it('should return true if a given node is a TS class declaration', () => {
|
|
const program = makeTestProgram(SIMPLE_CLASS_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const node =
|
|
getDeclaration(program, SIMPLE_CLASS_FILE.name, 'EmptyClass', ts.isClassDeclaration);
|
|
expect(host.isClass(node)).toBe(true);
|
|
});
|
|
|
|
it('should return false if a given node is a TS function declaration', () => {
|
|
const program = makeTestProgram(FOO_FUNCTION_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const node = getDeclaration(program, FOO_FUNCTION_FILE.name, 'foo', ts.isFunctionDeclaration);
|
|
expect(host.isClass(node)).toBe(false);
|
|
});
|
|
});
|
|
|
|
describe('getGenericArityOfClass()', () => {
|
|
it('should properly count type parameters', () => {
|
|
const program = makeTestProgram(ARITY_CLASSES[0]);
|
|
const dtsProgram = makeTestProgram(ARITY_CLASSES[1]);
|
|
const dts = makeTestBundleProgram([ARITY_CLASSES[1]]);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker(), dts);
|
|
const noTypeParamClass =
|
|
getDeclaration(program, '/src/class.js', 'NoTypeParam', ts.isClassDeclaration);
|
|
expect(host.getGenericArityOfClass(noTypeParamClass)).toBe(0);
|
|
const oneTypeParamClass =
|
|
getDeclaration(program, '/src/class.js', 'OneTypeParam', ts.isClassDeclaration);
|
|
expect(host.getGenericArityOfClass(oneTypeParamClass)).toBe(1);
|
|
const twoTypeParamsClass =
|
|
getDeclaration(program, '/src/class.js', 'TwoTypeParams', ts.isClassDeclaration);
|
|
expect(host.getGenericArityOfClass(twoTypeParamsClass)).toBe(2);
|
|
});
|
|
});
|
|
|
|
describe('getSwitchableDeclarations()', () => {
|
|
it('should return a collection of all the switchable variable declarations in the given module',
|
|
() => {
|
|
const program = makeTestProgram(MARKER_FILE);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const file = program.getSourceFile(MARKER_FILE.name) !;
|
|
const declarations = host.getSwitchableDeclarations(file);
|
|
expect(declarations.map(d => [d.name.getText(), d.initializer !.getText()])).toEqual([
|
|
['compileNgModuleFactory', 'compileNgModuleFactory__PRE_R3__']
|
|
]);
|
|
});
|
|
});
|
|
|
|
describe('findDecoratedClasses()', () => {
|
|
it('should return an array of all decorated classes in the given source file', () => {
|
|
const program = makeTestProgram(...DECORATED_FILES);
|
|
const host = new Esm2015ReflectionHost(false, program.getTypeChecker());
|
|
const primaryFile = program.getSourceFile(DECORATED_FILES[0].name) !;
|
|
const secondaryFile = program.getSourceFile(DECORATED_FILES[1].name) !;
|
|
|
|
const primaryDecoratedClasses = host.findDecoratedClasses(primaryFile);
|
|
expect(primaryDecoratedClasses.length).toEqual(2);
|
|
const classA = primaryDecoratedClasses.find(c => c.name === 'A') !;
|
|
expect(ts.isClassDeclaration(classA.declaration)).toBeTruthy();
|
|
expect(classA.decorators.map(decorator => decorator.name)).toEqual(['Directive']);
|
|
// Note that `B` is not exported from `primary.js`
|
|
const classB = primaryDecoratedClasses.find(c => c.name === 'B') !;
|
|
expect(ts.isClassDeclaration(classB.declaration)).toBeTruthy();
|
|
expect(classA.decorators.map(decorator => decorator.name)).toEqual(['Directive']);
|
|
|
|
const secondaryDecoratedClasses = host.findDecoratedClasses(secondaryFile) !;
|
|
expect(secondaryDecoratedClasses.length).toEqual(1);
|
|
// Note that `D` is exported from `secondary.js` but not exported from `primary.js`
|
|
const classD = secondaryDecoratedClasses.find(c => c.name === 'D') !;
|
|
expect(classD.name).toEqual('D');
|
|
expect(ts.isClassDeclaration(classD.declaration)).toBeTruthy();
|
|
expect(classD.decorators.map(decorator => decorator.name)).toEqual(['Directive']);
|
|
});
|
|
});
|
|
|
|
describe('getDtsDeclarationsOfClass()', () => {
|
|
it('should find the dts declaration that has the same relative path to the source file', () => {
|
|
const srcProgram = makeTestProgram(...TYPINGS_SRC_FILES);
|
|
const dts = makeTestBundleProgram(TYPINGS_DTS_FILES);
|
|
const class1 = getDeclaration(srcProgram, '/src/class1.js', 'Class1', ts.isClassDeclaration);
|
|
const host = new Esm2015ReflectionHost(false, srcProgram.getTypeChecker(), dts);
|
|
|
|
const dtsDeclaration = host.getDtsDeclaration(class1);
|
|
expect(dtsDeclaration !.getSourceFile().fileName).toEqual('/typings/class1.d.ts');
|
|
});
|
|
|
|
it('should find the dts declaration for exported functions', () => {
|
|
const srcProgram = makeTestProgram(...TYPINGS_SRC_FILES);
|
|
const dtsProgram = makeTestBundleProgram(TYPINGS_DTS_FILES);
|
|
const mooFn = getDeclaration(srcProgram, '/src/func1.js', 'mooFn', ts.isFunctionDeclaration);
|
|
const host = new Esm2015ReflectionHost(false, srcProgram.getTypeChecker(), dtsProgram);
|
|
|
|
const dtsDeclaration = host.getDtsDeclaration(mooFn);
|
|
expect(dtsDeclaration !.getSourceFile().fileName).toEqual('/typings/func1.d.ts');
|
|
});
|
|
|
|
it('should return null if there is no matching class in the matching dts file', () => {
|
|
const srcProgram = makeTestProgram(...TYPINGS_SRC_FILES);
|
|
const dts = makeTestBundleProgram(TYPINGS_DTS_FILES);
|
|
const missingClass =
|
|
getDeclaration(srcProgram, '/src/class1.js', 'MissingClass1', ts.isClassDeclaration);
|
|
const host = new Esm2015ReflectionHost(false, srcProgram.getTypeChecker(), dts);
|
|
|
|
expect(host.getDtsDeclaration(missingClass)).toBe(null);
|
|
});
|
|
|
|
it('should return null if there is no matching dts file', () => {
|
|
const srcProgram = makeTestProgram(...TYPINGS_SRC_FILES);
|
|
const dts = makeTestBundleProgram(TYPINGS_DTS_FILES);
|
|
const missingClass = getDeclaration(
|
|
srcProgram, '/src/missing-class.js', 'MissingClass2', ts.isClassDeclaration);
|
|
const host = new Esm2015ReflectionHost(false, srcProgram.getTypeChecker(), dts);
|
|
|
|
expect(host.getDtsDeclaration(missingClass)).toBe(null);
|
|
});
|
|
|
|
it('should find the dts file that contains a matching class declaration, even if the source files do not match',
|
|
() => {
|
|
const srcProgram = makeTestProgram(...TYPINGS_SRC_FILES);
|
|
const dts = makeTestBundleProgram(TYPINGS_DTS_FILES);
|
|
const class1 =
|
|
getDeclaration(srcProgram, '/src/flat-file.js', 'Class1', ts.isClassDeclaration);
|
|
const host = new Esm2015ReflectionHost(false, srcProgram.getTypeChecker(), dts);
|
|
|
|
const dtsDeclaration = host.getDtsDeclaration(class1);
|
|
expect(dtsDeclaration !.getSourceFile().fileName).toEqual('/typings/class1.d.ts');
|
|
});
|
|
|
|
it('should find aliased exports', () => {
|
|
const srcProgram = makeTestProgram(...TYPINGS_SRC_FILES);
|
|
const dts = makeTestBundleProgram(TYPINGS_DTS_FILES);
|
|
const class3 =
|
|
getDeclaration(srcProgram, '/src/flat-file.js', 'Class3', ts.isClassDeclaration);
|
|
const host = new Esm2015ReflectionHost(false, srcProgram.getTypeChecker(), dts);
|
|
|
|
const dtsDeclaration = host.getDtsDeclaration(class3);
|
|
expect(dtsDeclaration !.getSourceFile().fileName).toEqual('/typings/class3.d.ts');
|
|
});
|
|
|
|
it('should find the dts file that contains a matching class declaration, even if the class is not publicly exported',
|
|
() => {
|
|
const srcProgram = makeTestProgram(...TYPINGS_SRC_FILES);
|
|
const dts = makeTestBundleProgram(TYPINGS_DTS_FILES);
|
|
const internalClass =
|
|
getDeclaration(srcProgram, '/src/internal.js', 'InternalClass', ts.isClassDeclaration);
|
|
const host = new Esm2015ReflectionHost(false, srcProgram.getTypeChecker(), dts);
|
|
|
|
const dtsDeclaration = host.getDtsDeclaration(internalClass);
|
|
expect(dtsDeclaration !.getSourceFile().fileName).toEqual('/typings/internal.d.ts');
|
|
});
|
|
|
|
it('should prefer the publicly exported class if there are multiple classes with the same name',
|
|
() => {
|
|
const srcProgram = makeTestProgram(...TYPINGS_SRC_FILES);
|
|
const dts = makeTestBundleProgram(TYPINGS_DTS_FILES);
|
|
const class2 =
|
|
getDeclaration(srcProgram, '/src/class2.js', 'Class2', ts.isClassDeclaration);
|
|
const internalClass2 =
|
|
getDeclaration(srcProgram, '/src/internal.js', 'Class2', ts.isClassDeclaration);
|
|
const host = new Esm2015ReflectionHost(false, srcProgram.getTypeChecker(), dts);
|
|
|
|
const class2DtsDeclaration = host.getDtsDeclaration(class2);
|
|
expect(class2DtsDeclaration !.getSourceFile().fileName).toEqual('/typings/class2.d.ts');
|
|
|
|
const internalClass2DtsDeclaration = host.getDtsDeclaration(internalClass2);
|
|
expect(internalClass2DtsDeclaration !.getSourceFile().fileName)
|
|
.toEqual('/typings/class2.d.ts');
|
|
});
|
|
});
|
|
|
|
describe('getModuleWithProvidersFunctions', () => {
|
|
it('should find every exported function that returns an object that looks like a ModuleWithProviders object',
|
|
() => {
|
|
const srcProgram = makeTestProgram(...MODULE_WITH_PROVIDERS_PROGRAM);
|
|
const host = new Esm2015ReflectionHost(false, srcProgram.getTypeChecker());
|
|
const file = srcProgram.getSourceFile('/src/functions.js') !;
|
|
const fns = host.getModuleWithProvidersFunctions(file);
|
|
expect(fns.map(info => [info.declaration.name !.getText(), info.ngModule.text])).toEqual([
|
|
['ngModuleIdentifier', 'InternalModule'],
|
|
['ngModuleWithEmptyProviders', 'InternalModule'],
|
|
['ngModuleWithProviders', 'InternalModule'],
|
|
['externalNgModule', 'ExternalModule'],
|
|
]);
|
|
});
|
|
|
|
it('should find every static method on exported classes that return an object that looks like a ModuleWithProviders object',
|
|
() => {
|
|
const srcProgram = makeTestProgram(...MODULE_WITH_PROVIDERS_PROGRAM);
|
|
const host = new Esm2015ReflectionHost(false, srcProgram.getTypeChecker());
|
|
const file = srcProgram.getSourceFile('/src/methods.js') !;
|
|
const fn = host.getModuleWithProvidersFunctions(file);
|
|
expect(fn.map(fn => [fn.declaration.name !.getText(), fn.ngModule.text])).toEqual([
|
|
['ngModuleIdentifier', 'InternalModule'],
|
|
['ngModuleWithEmptyProviders', 'InternalModule'],
|
|
['ngModuleWithProviders', 'InternalModule'],
|
|
['externalNgModule', 'ExternalModule'],
|
|
]);
|
|
});
|
|
});
|
|
});
|