/** * @license * Copyright Google Inc. All Rights Reserved. * * Use of this source code is governed by an MIT-style license that can be * found in the LICENSE file at https://angular.io/license */ import {StaticReflector, StaticSymbol, StaticSymbolCache, StaticSymbolResolver, StaticSymbolResolverHost} from '@angular/compiler'; import {HostListener, Inject, animate, group, keyframes, sequence, state, style, transition, trigger} from '@angular/core'; import {CollectorOptions} from '@angular/tsc-wrapped'; import {MockStaticSymbolResolverHost, MockSummaryResolver} from './static_symbol_resolver_spec'; describe('StaticReflector', () => { let noContext: StaticSymbol; let host: StaticSymbolResolverHost; let symbolResolver: StaticSymbolResolver; let reflector: StaticReflector; function init( testData: {[key: string]: any} = DEFAULT_TEST_DATA, decorators: {name: string, filePath: string, ctor: any}[] = [], errorRecorder?: (error: any, fileName: string) => void, collectorOptions?: CollectorOptions) { const symbolCache = new StaticSymbolCache(); host = new MockStaticSymbolResolverHost(testData, collectorOptions); symbolResolver = new StaticSymbolResolver(host, symbolCache, new MockSummaryResolver([]), errorRecorder); reflector = new StaticReflector(symbolResolver, decorators, [], errorRecorder); noContext = reflector.getStaticSymbol('', ''); } beforeEach(() => init()); function simplify(context: StaticSymbol, value: any) { return reflector.simplify(context, value); } it('should get annotations for NgFor', () => { const NgFor = reflector.findDeclaration('@angular/common/src/directives/ng_for', 'NgFor'); const annotations = reflector.annotations(NgFor); expect(annotations.length).toEqual(1); const annotation = annotations[0]; expect(annotation.selector).toEqual('[ngFor][ngForOf]'); expect(annotation.inputs).toEqual(['ngForTrackBy', 'ngForOf', 'ngForTemplate']); }); it('should get constructor for NgFor', () => { const NgFor = reflector.findDeclaration('@angular/common/src/directives/ng_for', 'NgFor'); const ViewContainerRef = reflector.findDeclaration('@angular/core', 'ViewContainerRef'); const TemplateRef = reflector.findDeclaration('@angular/core', 'TemplateRef'); const IterableDiffers = reflector.findDeclaration('@angular/core', 'IterableDiffers'); const ChangeDetectorRef = reflector.findDeclaration('@angular/core', 'ChangeDetectorRef'); const parameters = reflector.parameters(NgFor); expect(parameters).toEqual([ [ViewContainerRef], [TemplateRef], [IterableDiffers], [ChangeDetectorRef] ]); }); it('should get annotations for HeroDetailComponent', () => { const HeroDetailComponent = reflector.findDeclaration('src/app/hero-detail.component', 'HeroDetailComponent'); const annotations = reflector.annotations(HeroDetailComponent); expect(annotations.length).toEqual(1); const annotation = annotations[0]; expect(annotation.selector).toEqual('my-hero-detail'); expect(annotation.animations).toEqual([trigger('myAnimation', [ state('state1', style({'background': 'white'})), transition( '* => *', sequence([group([animate( '1s 0.5s', keyframes([style({'background': 'blue'}), style({'background': 'red'})]))])])) ])]); }); it('should get and empty annotation list for an unknown class', () => { const UnknownClass = reflector.findDeclaration('src/app/app.component', 'UnknownClass'); const annotations = reflector.annotations(UnknownClass); expect(annotations).toEqual([]); }); it('should get and empty annotation list for a symbol with null value', () => { init({ '/tmp/test.ts': ` export var x = null; ` }); const annotations = reflector.annotations(reflector.getStaticSymbol('/tmp/test.ts', 'x')); expect(annotations).toEqual([]); }); it('should get propMetadata for HeroDetailComponent', () => { const HeroDetailComponent = reflector.findDeclaration('src/app/hero-detail.component', 'HeroDetailComponent'); const props = reflector.propMetadata(HeroDetailComponent); expect(props['hero']).toBeTruthy(); expect(props['onMouseOver']).toEqual([new HostListener('mouseover', ['$event'])]); }); it('should get an empty object from propMetadata for an unknown class', () => { const UnknownClass = reflector.findDeclaration('src/app/app.component', 'UnknownClass'); const properties = reflector.propMetadata(UnknownClass); expect(properties).toEqual({}); }); it('should get empty parameters list for an unknown class ', () => { const UnknownClass = reflector.findDeclaration('src/app/app.component', 'UnknownClass'); const parameters = reflector.parameters(UnknownClass); expect(parameters).toEqual([]); }); it('should provide context for errors reported by the collector', () => { const SomeClass = reflector.findDeclaration('src/error-reporting', 'SomeClass'); expect(() => reflector.annotations(SomeClass)) .toThrow(new Error( 'Error encountered resolving symbol values statically. A reasonable error message (position 13:34 in the original .ts file), resolving symbol ErrorSym in /tmp/src/error-references.d.ts, resolving symbol Link2 in /tmp/src/error-references.d.ts, resolving symbol Link1 in /tmp/src/error-references.d.ts, resolving symbol SomeClass in /tmp/src/error-reporting.d.ts, resolving symbol SomeClass in /tmp/src/error-reporting.d.ts')); }); it('should simplify primitive into itself', () => { expect(simplify(noContext, 1)).toBe(1); expect(simplify(noContext, true)).toBe(true); expect(simplify(noContext, 'some value')).toBe('some value'); }); it('should simplify a static symbol into itself', () => { const staticSymbol = reflector.getStaticSymbol('', ''); expect(simplify(noContext, staticSymbol)).toBe(staticSymbol); }); it('should simplify an array into a copy of the array', () => { expect(simplify(noContext, [1, 2, 3])).toEqual([1, 2, 3]); }); it('should simplify an object to a copy of the object', () => { const expr = {a: 1, b: 2, c: 3}; expect(simplify(noContext, expr)).toEqual(expr); }); it('should simplify &&', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '&&', left: true, right: true}))) .toBe(true); expect(simplify(noContext, ({__symbolic: 'binop', operator: '&&', left: true, right: false}))) .toBe(false); expect(simplify(noContext, ({__symbolic: 'binop', operator: '&&', left: false, right: true}))) .toBe(false); expect(simplify(noContext, ({__symbolic: 'binop', operator: '&&', left: false, right: false}))) .toBe(false); }); it('should simplify ||', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '||', left: true, right: true}))) .toBe(true); expect(simplify(noContext, ({__symbolic: 'binop', operator: '||', left: true, right: false}))) .toBe(true); expect(simplify(noContext, ({__symbolic: 'binop', operator: '||', left: false, right: true}))) .toBe(true); expect(simplify(noContext, ({__symbolic: 'binop', operator: '||', left: false, right: false}))) .toBe(false); }); it('should simplify &', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '&', left: 0x22, right: 0x0F}))) .toBe(0x22 & 0x0F); expect(simplify(noContext, ({__symbolic: 'binop', operator: '&', left: 0x22, right: 0xF0}))) .toBe(0x22 & 0xF0); }); it('should simplify |', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '|', left: 0x22, right: 0x0F}))) .toBe(0x22 | 0x0F); expect(simplify(noContext, ({__symbolic: 'binop', operator: '|', left: 0x22, right: 0xF0}))) .toBe(0x22 | 0xF0); }); it('should simplify ^', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '|', left: 0x22, right: 0x0F}))) .toBe(0x22 | 0x0F); expect(simplify(noContext, ({__symbolic: 'binop', operator: '|', left: 0x22, right: 0xF0}))) .toBe(0x22 | 0xF0); }); it('should simplify ==', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '==', left: 0x22, right: 0x22}))) .toBe(0x22 == 0x22); expect(simplify(noContext, ({__symbolic: 'binop', operator: '==', left: 0x22, right: 0xF0}))) .toBe(0x22 as any == 0xF0); }); it('should simplify !=', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '!=', left: 0x22, right: 0x22}))) .toBe(0x22 != 0x22); expect(simplify(noContext, ({__symbolic: 'binop', operator: '!=', left: 0x22, right: 0xF0}))) .toBe(0x22 as any != 0xF0); }); it('should simplify ===', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '===', left: 0x22, right: 0x22}))) .toBe(0x22 === 0x22); expect(simplify(noContext, ({__symbolic: 'binop', operator: '===', left: 0x22, right: 0xF0}))) .toBe(0x22 as any === 0xF0); }); it('should simplify !==', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '!==', left: 0x22, right: 0x22}))) .toBe(0x22 !== 0x22); expect(simplify(noContext, ({__symbolic: 'binop', operator: '!==', left: 0x22, right: 0xF0}))) .toBe(0x22 as any !== 0xF0); }); it('should simplify >', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '>', left: 1, right: 1}))) .toBe(1 > 1); expect(simplify(noContext, ({__symbolic: 'binop', operator: '>', left: 1, right: 0}))) .toBe(1 > 0); expect(simplify(noContext, ({__symbolic: 'binop', operator: '>', left: 0, right: 1}))) .toBe(0 > 1); }); it('should simplify >=', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '>=', left: 1, right: 1}))) .toBe(1 >= 1); expect(simplify(noContext, ({__symbolic: 'binop', operator: '>=', left: 1, right: 0}))) .toBe(1 >= 0); expect(simplify(noContext, ({__symbolic: 'binop', operator: '>=', left: 0, right: 1}))) .toBe(0 >= 1); }); it('should simplify <=', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '<=', left: 1, right: 1}))) .toBe(1 <= 1); expect(simplify(noContext, ({__symbolic: 'binop', operator: '<=', left: 1, right: 0}))) .toBe(1 <= 0); expect(simplify(noContext, ({__symbolic: 'binop', operator: '<=', left: 0, right: 1}))) .toBe(0 <= 1); }); it('should simplify <', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '<', left: 1, right: 1}))) .toBe(1 < 1); expect(simplify(noContext, ({__symbolic: 'binop', operator: '<', left: 1, right: 0}))) .toBe(1 < 0); expect(simplify(noContext, ({__symbolic: 'binop', operator: '<', left: 0, right: 1}))) .toBe(0 < 1); }); it('should simplify <<', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '<<', left: 0x55, right: 2}))) .toBe(0x55 << 2); }); it('should simplify >>', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '>>', left: 0x55, right: 2}))) .toBe(0x55 >> 2); }); it('should simplify +', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '+', left: 0x55, right: 2}))) .toBe(0x55 + 2); }); it('should simplify -', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '-', left: 0x55, right: 2}))) .toBe(0x55 - 2); }); it('should simplify *', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '*', left: 0x55, right: 2}))) .toBe(0x55 * 2); }); it('should simplify /', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '/', left: 0x55, right: 2}))) .toBe(0x55 / 2); }); it('should simplify %', () => { expect(simplify(noContext, ({__symbolic: 'binop', operator: '%', left: 0x55, right: 2}))) .toBe(0x55 % 2); }); it('should simplify prefix -', () => { expect(simplify(noContext, ({__symbolic: 'pre', operator: '-', operand: 2}))).toBe(-2); }); it('should simplify prefix ~', () => { expect(simplify(noContext, ({__symbolic: 'pre', operator: '~', operand: 2}))).toBe(~2); }); it('should simplify prefix !', () => { expect(simplify(noContext, ({__symbolic: 'pre', operator: '!', operand: true}))).toBe(!true); expect(simplify(noContext, ({__symbolic: 'pre', operator: '!', operand: false}))).toBe(!false); }); it('should simplify an array index', () => { expect(simplify(noContext, ({__symbolic: 'index', expression: [1, 2, 3], index: 2}))).toBe(3); }); it('should simplify an object index', () => { const expr = {__symbolic: 'select', expression: {a: 1, b: 2, c: 3}, member: 'b'}; expect(simplify(noContext, expr)).toBe(2); }); it('should simplify a file reference', () => { expect(simplify( reflector.getStaticSymbol('/src/cases', ''), reflector.getStaticSymbol('/src/extern.d.ts', 's'))) .toEqual('s'); }); it('should simplify a non existing reference as a static symbol', () => { expect(simplify( reflector.getStaticSymbol('/src/cases', ''), reflector.getStaticSymbol('/src/extern.d.ts', 'nonExisting'))) .toEqual(reflector.getStaticSymbol('/src/extern.d.ts', 'nonExisting')); }); it('should simplify a function reference as a static symbol', () => { expect(simplify( reflector.getStaticSymbol('/src/cases', 'myFunction'), ({__symbolic: 'function', parameters: ['a'], value: []}))) .toEqual(reflector.getStaticSymbol('/src/cases', 'myFunction')); }); it('should simplify values initialized with a function call', () => { expect(simplify( reflector.getStaticSymbol('/tmp/src/function-reference.ts', ''), reflector.getStaticSymbol('/tmp/src/function-reference.ts', 'one'))) .toEqual(['some-value']); expect(simplify( reflector.getStaticSymbol('/tmp/src/function-reference.ts', ''), reflector.getStaticSymbol('/tmp/src/function-reference.ts', 'three'))) .toEqual(3); }); it('should error on direct recursive calls', () => { expect( () => simplify( reflector.getStaticSymbol('/tmp/src/function-reference.ts', ''), reflector.getStaticSymbol('/tmp/src/function-reference.ts', 'recursion'))) .toThrow(new Error( 'Recursion not supported, resolving symbol recursive in /tmp/src/function-recursive.d.ts, resolving symbol recursion in /tmp/src/function-reference.ts, resolving symbol in /tmp/src/function-reference.ts')); }); it('should throw a SyntaxError without stack trace when the required resource cannot be resolved', () => { expect( () => simplify( reflector.getStaticSymbol('/tmp/src/function-reference.ts', 'AppModule'), ({ __symbolic: 'error', message: 'Could not resolve ./does-not-exist.component relative to /tmp/src/function-reference.ts' }))) .toThrowError( 'Error encountered resolving symbol values statically. Could not resolve ./does-not-exist.component relative to /tmp/src/function-reference.ts, resolving symbol AppModule in /tmp/src/function-reference.ts'); }); it('should record data about the error in the exception', () => { let threw = false; try { const metadata = host.getMetadataFor('/tmp/src/invalid-metadata.ts'); expect(metadata).toBeDefined(); const moduleMetadata: any = metadata[0]['metadata']; expect(moduleMetadata).toBeDefined(); const classData: any = moduleMetadata['InvalidMetadata']; expect(classData).toBeDefined(); simplify( reflector.getStaticSymbol('/tmp/src/invalid-metadata.ts', ''), classData.decorators[0]); } catch (e) { expect(e.fileName).toBe('/tmp/src/invalid-metadata.ts'); threw = true; } expect(threw).toBe(true); }); it('should error on indirect recursive calls', () => { expect( () => simplify( reflector.getStaticSymbol('/tmp/src/function-reference.ts', ''), reflector.getStaticSymbol('/tmp/src/function-reference.ts', 'indirectRecursion'))) .toThrow(new Error( 'Recursion not supported, resolving symbol indirectRecursion2 in /tmp/src/function-recursive.d.ts, resolving symbol indirectRecursion1 in /tmp/src/function-recursive.d.ts, resolving symbol indirectRecursion in /tmp/src/function-reference.ts, resolving symbol in /tmp/src/function-reference.ts')); }); it('should simplify a spread expression', () => { expect(simplify( reflector.getStaticSymbol('/tmp/src/spread.ts', ''), reflector.getStaticSymbol('/tmp/src/spread.ts', 'spread'))) .toEqual([0, 1, 2, 3, 4, 5]); }); it('should be able to get metadata for a class containing a custom decorator', () => { const props = reflector.propMetadata( reflector.getStaticSymbol('/tmp/src/custom-decorator-reference.ts', 'Foo')); expect(props).toEqual({foo: []}); }); it('should read ctor parameters with forwardRef', () => { const src = '/tmp/src/forward-ref.ts'; const dep = reflector.getStaticSymbol(src, 'Dep'); const props = reflector.parameters(reflector.getStaticSymbol(src, 'Forward')); expect(props).toEqual([[dep, new Inject(dep)]]); }); it('should report an error for invalid function calls', () => { expect( () => reflector.annotations( reflector.getStaticSymbol('/tmp/src/invalid-calls.ts', 'MyComponent'))) .toThrow(new Error( `Error encountered resolving symbol values statically. Calling function 'someFunction', function calls are not supported. Consider replacing the function or lambda with a reference to an exported function, resolving symbol MyComponent in /tmp/src/invalid-calls.ts, resolving symbol MyComponent in /tmp/src/invalid-calls.ts`)); }); it('should be able to get metadata for a class containing a static method call', () => { const annotations = reflector.annotations( reflector.getStaticSymbol('/tmp/src/static-method-call.ts', 'MyComponent')); expect(annotations.length).toBe(1); expect(annotations[0].providers).toEqual({provider: 'a', useValue: 100}); }); it('should be able to get metadata for a class containing a static field reference', () => { const annotations = reflector.annotations( reflector.getStaticSymbol('/tmp/src/static-field-reference.ts', 'Foo')); expect(annotations.length).toBe(1); expect(annotations[0].providers).toEqual([{provider: 'a', useValue: 'Some string'}]); }); it('should be able to get the metadata for a class calling a method with a conditional expression', () => { const annotations = reflector.annotations( reflector.getStaticSymbol('/tmp/src/static-method-call.ts', 'MyCondComponent')); expect(annotations.length).toBe(1); expect(annotations[0].providers).toEqual([ [{provider: 'a', useValue: '1'}], [{provider: 'a', useValue: '2'}] ]); }); it('should be able to get metadata for a class with nested method calls', () => { const annotations = reflector.annotations( reflector.getStaticSymbol('/tmp/src/static-method-call.ts', 'MyFactoryComponent')); expect(annotations.length).toBe(1); expect(annotations[0].providers).toEqual({ provide: 'c', useFactory: reflector.getStaticSymbol('/tmp/src/static-method.ts', 'AnotherModule', ['someFactory']) }); }); it('should be able to get the metadata for a class calling a method with default parameters', () => { const annotations = reflector.annotations( reflector.getStaticSymbol('/tmp/src/static-method-call.ts', 'MyDefaultsComponent')); expect(annotations.length).toBe(1); expect(annotations[0].providers).toEqual([['a', true, false]]); }); it('should be able to get metadata with a reference to a static method', () => { const annotations = reflector.annotations( reflector.getStaticSymbol('/tmp/src/static-method-ref.ts', 'MethodReference')); expect(annotations.length).toBe(1); expect(annotations[0].providers[0].useValue.members[0]).toEqual('staticMethod'); }); // #13605 it('should not throw on unknown decorators', () => { const data = Object.create(DEFAULT_TEST_DATA); const file = '/tmp/src/app.component.ts'; data[file] = ` import { Component } from '@angular/core'; export const enum TypeEnum { type } export function MyValidationDecorator(p1: any, p2: any): any { return null; } export function ValidationFunction(a1: any): any { return null; } @Component({ selector: 'my-app', template: "

Hello {{name}}

", }) export class AppComponent { name = 'Angular'; @MyValidationDecorator( TypeEnum.type, ValidationFunction({option: 'value'})) myClassProp: number; }`; init(data); const appComponent = reflector.getStaticSymbol(file, 'AppComponent'); expect(() => reflector.propMetadata(appComponent)).not.toThrow(); }); it('should produce a annotation even if it contains errors', () => { const data = Object.create(DEFAULT_TEST_DATA); const file = '/tmp/src/invalid-component.ts'; data[file] = ` import {Component} from '@angular/core'; @Component({ selector: 'tmp', template: () => {}, providers: [1, 2, (() => {}), 3, !(() => {}), 4, 5, (() => {}) + (() => {}), 6, 7] }) export class BadComponent { } `; init(data, [], () => {}, {verboseInvalidExpression: true}); const badComponent = reflector.getStaticSymbol(file, 'BadComponent'); const annotations = reflector.annotations(badComponent); const annotation = annotations[0]; expect(annotation.selector).toEqual('tmp'); expect(annotation.template).toBeUndefined(); expect(annotation.providers).toEqual([1, 2, 3, 4, 5, 6, 7]); }); describe('inheritance', () => { class ClassDecorator { constructor(public value: any) {} } class ParamDecorator { constructor(public value: any) {} } class PropDecorator { constructor(public value: any) {} } function initWithDecorator(testData: {[key: string]: any}) { testData['/tmp/src/decorator.ts'] = ` export function ClassDecorator(): any {} export function ParamDecorator(): any {} export function PropDecorator(): any {} `; init(testData, [ {filePath: '/tmp/src/decorator.ts', name: 'ClassDecorator', ctor: ClassDecorator}, {filePath: '/tmp/src/decorator.ts', name: 'ParamDecorator', ctor: ParamDecorator}, {filePath: '/tmp/src/decorator.ts', name: 'PropDecorator', ctor: PropDecorator} ]); } it('should inherit annotations', () => { initWithDecorator({ '/tmp/src/main.ts': ` import {ClassDecorator} from './decorator'; @ClassDecorator('parent') export class Parent {} @ClassDecorator('child') export class Child extends Parent {} export class ChildNoDecorators extends Parent {} export class ChildInvalidParent extends a.InvalidParent {} ` }); // Check that metadata for Parent was not changed! expect(reflector.annotations(reflector.getStaticSymbol('/tmp/src/main.ts', 'Parent'))) .toEqual([new ClassDecorator('parent')]); expect(reflector.annotations(reflector.getStaticSymbol('/tmp/src/main.ts', 'Child'))) .toEqual([new ClassDecorator('parent'), new ClassDecorator('child')]); expect( reflector.annotations(reflector.getStaticSymbol('/tmp/src/main.ts', 'ChildNoDecorators'))) .toEqual([new ClassDecorator('parent')]); expect(reflector.annotations( reflector.getStaticSymbol('/tmp/src/main.ts', 'ChildInvalidParent'))) .toEqual([]); }); it('should inherit parameters', () => { initWithDecorator({ '/tmp/src/main.ts': ` import {ParamDecorator} from './decorator'; export class A {} export class B {} export class C {} export class Parent { constructor(@ParamDecorator('a') a: A, @ParamDecorator('b') b: B) {} } export class Child extends Parent {} export class ChildWithCtor extends Parent { constructor(@ParamDecorator('c') c: C) {} } export class ChildInvalidParent extends a.InvalidParent {} ` }); // Check that metadata for Parent was not changed! expect(reflector.parameters(reflector.getStaticSymbol('/tmp/src/main.ts', 'Parent'))) .toEqual([ [reflector.getStaticSymbol('/tmp/src/main.ts', 'A'), new ParamDecorator('a')], [reflector.getStaticSymbol('/tmp/src/main.ts', 'B'), new ParamDecorator('b')] ]); expect(reflector.parameters(reflector.getStaticSymbol('/tmp/src/main.ts', 'Child'))).toEqual([ [reflector.getStaticSymbol('/tmp/src/main.ts', 'A'), new ParamDecorator('a')], [reflector.getStaticSymbol('/tmp/src/main.ts', 'B'), new ParamDecorator('b')] ]); expect(reflector.parameters(reflector.getStaticSymbol('/tmp/src/main.ts', 'ChildWithCtor'))) .toEqual([[reflector.getStaticSymbol('/tmp/src/main.ts', 'C'), new ParamDecorator('c')]]); expect( reflector.parameters(reflector.getStaticSymbol('/tmp/src/main.ts', 'ChildInvalidParent'))) .toEqual([]); }); it('should inherit property metadata', () => { initWithDecorator({ '/tmp/src/main.ts': ` import {PropDecorator} from './decorator'; export class A {} export class B {} export class C {} export class Parent { @PropDecorator('a') a: A; @PropDecorator('b1') b: B; } export class Child extends Parent { @PropDecorator('b2') b: B; @PropDecorator('c') c: C; } export class ChildInvalidParent extends a.InvalidParent {} ` }); // Check that metadata for Parent was not changed! expect(reflector.propMetadata(reflector.getStaticSymbol('/tmp/src/main.ts', 'Parent'))) .toEqual({ 'a': [new PropDecorator('a')], 'b': [new PropDecorator('b1')], }); expect(reflector.propMetadata(reflector.getStaticSymbol('/tmp/src/main.ts', 'Child'))) .toEqual({ 'a': [new PropDecorator('a')], 'b': [new PropDecorator('b1'), new PropDecorator('b2')], 'c': [new PropDecorator('c')] }); expect(reflector.propMetadata( reflector.getStaticSymbol('/tmp/src/main.ts', 'ChildInvalidParent'))) .toEqual({}); }); it('should inherit lifecycle hooks', () => { initWithDecorator({ '/tmp/src/main.ts': ` export class Parent { hook1() {} hook2() {} } export class Child extends Parent { hook2() {} hook3() {} } export class ChildInvalidParent extends a.InvalidParent {} ` }); function hooks(symbol: StaticSymbol, names: string[]): boolean[] { return names.map(name => reflector.hasLifecycleHook(symbol, name)); } // Check that metadata for Parent was not changed! expect(hooks(reflector.getStaticSymbol('/tmp/src/main.ts', 'Parent'), [ 'hook1', 'hook2', 'hook3' ])).toEqual([true, true, false]); expect(hooks(reflector.getStaticSymbol('/tmp/src/main.ts', 'Child'), [ 'hook1', 'hook2', 'hook3' ])).toEqual([true, true, true]); expect(hooks(reflector.getStaticSymbol('/tmp/src/main.ts', 'ChildInvalidParent'), [ 'hook1', 'hook2', 'hook3' ])).toEqual([false, false, false]); }); it('should allow inheritance from expressions', () => { initWithDecorator({ '/tmp/src/main.ts': ` export function metaClass() { return null; }; export class Child extends metaClass() {} ` }); expect(reflector.annotations(reflector.getStaticSymbol('/tmp/src/main.ts', 'Child'))) .toEqual([]); }); it('should allow inheritance from functions', () => { initWithDecorator({ '/tmp/src/main.ts': ` export let ctor: {new(): T} = function() { return null; } export class Child extends ctor {} ` }); expect(reflector.annotations(reflector.getStaticSymbol('/tmp/src/main.ts', 'Child'))) .toEqual([]); }); it('should support constructor parameters with @Inject and an interface type', () => { const data = Object.create(DEFAULT_TEST_DATA); const file = '/tmp/src/inject_interface.ts'; data[file] = ` import {Injectable, Inject} from '@angular/core'; import {F} from './f'; export interface InjectedInterface { } export class Token {} @Injectable() export class SomeClass { constructor (@Inject(Token) injected: InjectedInterface, t: Token, @Inject(Token) f: F) {} } `; init(data); expect(reflector.parameters(reflector.getStaticSymbol(file, 'SomeClass'))[0].length) .toEqual(1); }); }); }); const DEFAULT_TEST_DATA: {[key: string]: any} = { '/tmp/@angular/common/src/forms-deprecated/directives.d.ts': [{ '__symbolic': 'module', 'version': 3, 'metadata': { 'FORM_DIRECTIVES': [ { '__symbolic': 'reference', 'name': 'NgFor', 'module': '@angular/common/src/directives/ng_for' } ] } }], '/tmp/@angular/common/src/directives/ng_for.d.ts': { '__symbolic': 'module', 'version': 3, 'metadata': { 'NgFor': { '__symbolic': 'class', 'decorators': [ { '__symbolic': 'call', 'expression': { '__symbolic': 'reference', 'name': 'Directive', 'module': '@angular/core' }, 'arguments': [ { 'selector': '[ngFor][ngForOf]', 'inputs': ['ngForTrackBy', 'ngForOf', 'ngForTemplate'] } ] } ], 'members': { '__ctor__': [ { '__symbolic': 'constructor', 'parameters': [ { '__symbolic': 'reference', 'module': '@angular/core', 'name': 'ViewContainerRef' }, { '__symbolic': 'reference', 'module': '@angular/core', 'name': 'TemplateRef' }, { '__symbolic': 'reference', 'module': '@angular/core', 'name': 'IterableDiffers' }, { '__symbolic': 'reference', 'module': '@angular/core', 'name': 'ChangeDetectorRef' } ] } ] } } } }, '/tmp/@angular/core/src/linker/view_container_ref.d.ts': {version: 3, 'metadata': {'ViewContainerRef': {'__symbolic': 'class'}}}, '/tmp/@angular/core/src/linker/template_ref.d.ts': {version: 3, 'module': './template_ref', 'metadata': {'TemplateRef': {'__symbolic': 'class'}}}, '/tmp/@angular/core/src/change_detection/differs/iterable_differs.d.ts': {version: 3, 'metadata': {'IterableDiffers': {'__symbolic': 'class'}}}, '/tmp/@angular/core/src/change_detection/change_detector_ref.d.ts': {version: 3, 'metadata': {'ChangeDetectorRef': {'__symbolic': 'class'}}}, '/tmp/src/app/hero-detail.component.d.ts': { '__symbolic': 'module', 'version': 3, 'metadata': { 'HeroDetailComponent': { '__symbolic': 'class', 'decorators': [ { '__symbolic': 'call', 'expression': { '__symbolic': 'reference', 'name': 'Component', 'module': '@angular/core' }, 'arguments': [ { 'selector': 'my-hero-detail', 'template': '\n
\n

{{hero.name}} details!

\n
{{hero.id}}
\n
\n \n \n
\n
\n', 'animations': [{ '__symbolic': 'call', 'expression': { '__symbolic': 'reference', 'name': 'trigger', 'module': '@angular/core' }, 'arguments': [ 'myAnimation', [{ '__symbolic': 'call', 'expression': { '__symbolic': 'reference', 'name': 'state', 'module': '@angular/core' }, 'arguments': [ 'state1', { '__symbolic': 'call', 'expression': { '__symbolic': 'reference', 'name': 'style', 'module': '@angular/core' }, 'arguments': [ { 'background':'white' } ] } ] }, { '__symbolic': 'call', 'expression': { '__symbolic':'reference', 'name':'transition', 'module': '@angular/core' }, 'arguments': [ '* => *', { '__symbolic':'call', 'expression':{ '__symbolic':'reference', 'name':'sequence', 'module': '@angular/core' }, 'arguments':[[{ '__symbolic': 'call', 'expression': { '__symbolic':'reference', 'name':'group', 'module': '@angular/core' }, 'arguments':[[{ '__symbolic': 'call', 'expression': { '__symbolic':'reference', 'name':'animate', 'module': '@angular/core' }, 'arguments':[ '1s 0.5s', { '__symbolic': 'call', 'expression': { '__symbolic':'reference', 'name':'keyframes', 'module': '@angular/core' }, 'arguments':[[{ '__symbolic': 'call', 'expression': { '__symbolic':'reference', 'name':'style', 'module': '@angular/core' }, 'arguments':[ { 'background': 'blue'} ] }, { '__symbolic': 'call', 'expression': { '__symbolic':'reference', 'name':'style', 'module': '@angular/core' }, 'arguments':[ { 'background': 'red'} ] }]] } ] }]] }]] } ] } ] ] }] }] }], 'members': { 'hero': [ { '__symbolic': 'property', 'decorators': [ { '__symbolic': 'call', 'expression': { '__symbolic': 'reference', 'name': 'Input', 'module': '@angular/core' } } ] } ], 'onMouseOver': [ { '__symbolic': 'method', 'decorators': [ { '__symbolic': 'call', 'expression': { '__symbolic': 'reference', 'module': '@angular/core', 'name': 'HostListener' }, 'arguments': [ 'mouseover', [ '$event' ] ] } ] } ] } } } }, '/src/extern.d.ts': {'__symbolic': 'module', 'version': 3, metadata: {s: 's'}}, '/tmp/src/error-reporting.d.ts': { __symbolic: 'module', version: 3, metadata: { SomeClass: { __symbolic: 'class', decorators: [ { __symbolic: 'call', expression: { __symbolic: 'reference', name: 'Component', module: '@angular/core' }, arguments: [ { entryComponents: [ { __symbolic: 'reference', module: 'src/error-references', name: 'Link1', } ] } ] } ], } } }, '/tmp/src/error-references.d.ts': { __symbolic: 'module', version: 3, metadata: { Link1: { __symbolic: 'reference', module: 'src/error-references', name: 'Link2' }, Link2: { __symbolic: 'reference', module: 'src/error-references', name: 'ErrorSym' }, ErrorSym: { __symbolic: 'error', message: 'A reasonable error message', line: 12, character: 33 } } }, '/tmp/src/function-declaration.d.ts': { __symbolic: 'module', version: 3, metadata: { one: { __symbolic: 'function', parameters: ['a'], value: [ {__symbolic: 'reference', name: 'a'} ] }, add: { __symbolic: 'function', parameters: ['a','b'], value: { __symbolic: 'binop', operator: '+', left: {__symbolic: 'reference', name: 'a'}, right: { __symbolic: 'binop', operator: '+', left: {__symbolic: 'reference', name: 'b'}, right: {__symbolic: 'reference', name: 'oneLiteral'} } } }, oneLiteral: 1 } }, '/tmp/src/function-reference.ts': { __symbolic: 'module', version: 3, metadata: { one: { __symbolic: 'call', expression: { __symbolic: 'reference', module: './function-declaration', name: 'one' }, arguments: ['some-value'] }, three: { __symbolic: 'call', expression: { __symbolic: 'reference', module: './function-declaration', name: 'add' }, arguments: [1, 1] }, recursion: { __symbolic: 'call', expression: { __symbolic: 'reference', module: './function-recursive', name: 'recursive' }, arguments: [1] }, indirectRecursion: { __symbolic: 'call', expression: { __symbolic: 'reference', module: './function-recursive', name: 'indirectRecursion1' }, arguments: [1] } } }, '/tmp/src/function-recursive.d.ts': { __symbolic: 'modules', version: 3, metadata: { recursive: { __symbolic: 'function', parameters: ['a'], value: { __symbolic: 'call', expression: { __symbolic: 'reference', module: './function-recursive', name: 'recursive', }, arguments: [ { __symbolic: 'reference', name: 'a' } ] } }, indirectRecursion1: { __symbolic: 'function', parameters: ['a'], value: { __symbolic: 'call', expression: { __symbolic: 'reference', module: './function-recursive', name: 'indirectRecursion2', }, arguments: [ { __symbolic: 'reference', name: 'a' } ] } }, indirectRecursion2: { __symbolic: 'function', parameters: ['a'], value: { __symbolic: 'call', expression: { __symbolic: 'reference', module: './function-recursive', name: 'indirectRecursion1', }, arguments: [ { __symbolic: 'reference', name: 'a' } ] } } }, }, '/tmp/src/spread.ts': { __symbolic: 'module', version: 3, metadata: { spread: [0, {__symbolic: 'spread', expression: [1, 2, 3, 4]}, 5] } }, '/tmp/src/custom-decorator.ts': ` export function CustomDecorator(): any { return () => {}; } `, '/tmp/src/custom-decorator-reference.ts': ` import {CustomDecorator} from './custom-decorator'; @CustomDecorator() export class Foo { @CustomDecorator() get foo(): string { return ''; } } `, '/tmp/src/invalid-calll-definitions.ts': ` export function someFunction(a: any) { if (Array.isArray(a)) { return a; } return undefined; } `, '/tmp/src/invalid-calls.ts': ` import {someFunction} from './nvalid-calll-definitions.ts'; import {Component} from '@angular/core'; import {NgIf} from '@angular/common'; @Component({ selector: 'my-component', entryComponents: [someFunction([NgIf])] }) export class MyComponent {} @someFunction() @Component({ selector: 'my-component', entryComponents: [NgIf] }) export class MyOtherComponent { } `, '/tmp/src/static-method.ts': ` import {Component} from '@angular/core/src/metadata'; @Component({ selector: 'stub' }) export class MyModule { static with(data: any) { return { provider: 'a', useValue: data } } static condMethod(cond: boolean) { return [{ provider: 'a', useValue: cond ? '1' : '2'}]; } static defaultsMethod(a, b = true, c = false) { return [a, b, c]; } static withFactory() { return { provide: 'c', useFactory: AnotherModule.someFactory }; } } export class AnotherModule { static someFactory() { return 'e'; } } `, '/tmp/src/static-method-call.ts': ` import {Component} from '@angular/core'; import {MyModule} from './static-method'; @Component({ providers: MyModule.with(100) }) export class MyComponent { } @Component({ providers: [MyModule.condMethod(true), MyModule.condMethod(false)] }) export class MyCondComponent { } @Component({ providers: [MyModule.defaultsMethod('a')] }) export class MyDefaultsComponent { } @Component({ providers: MyModule.withFactory() }) export class MyFactoryComponent { } `, '/tmp/src/static-field.ts': ` import {Injectable} from '@angular/core'; @Injectable() export class MyModule { static VALUE = 'Some string'; } `, '/tmp/src/static-field-reference.ts': ` import {Component} from '@angular/core'; import {MyModule} from './static-field'; @Component({ providers: [ { provider: 'a', useValue: MyModule.VALUE } ] }) export class Foo { } `, '/tmp/src/static-method-def.ts': ` export class ClassWithStatics { static staticMethod() {} } `, '/tmp/src/static-method-ref.ts': ` import {Component} from '@angular/core'; import {ClassWithStatics} from './static-method-def'; @Component({ providers: [ { provider: 'a', useValue: ClassWithStatics.staticMethod}] }) export class MethodReference { } `, '/tmp/src/invalid-metadata.ts': ` import {Component} from '@angular/core'; @Component({ providers: [ { provider: 'a', useValue: (() => 1)() }] }) export class InvalidMetadata {} `, '/tmp/src/forward-ref.ts': ` import {forwardRef} from '@angular/core'; import {Component} from '@angular/core'; import {Inject} from '@angular/core'; @Component({}) export class Forward { constructor(@Inject(forwardRef(() => Dep)) d: Dep) {} } export class Dep { @Input f: Forward; } ` };