fix(ivy): unable to inherit view queries into component from directive (#29203)
Fixes components not being able to inherit their view queries from a directive. This PR resolves FW-1146. PR Close #29203
This commit is contained in:
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@ -145,7 +145,7 @@ export class ComponentDecoratorHandler implements
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}
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// Next, read the `@Component`-specific fields.
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const {decoratedElements, decorator: component, metadata} = directiveResult;
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const {decorator: component, metadata} = directiveResult;
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// Go through the root directories for this project, and select the one with the smallest
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// relative path representation.
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@ -223,22 +223,6 @@ export class ComponentDecoratorHandler implements
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});
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}
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// Construct the list of view queries.
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const coreModule = this.isCore ? undefined : '@angular/core';
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const viewChildFromFields = queriesFromFields(
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filterToMembersWithDecorator(decoratedElements, 'ViewChild', coreModule), this.reflector,
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this.evaluator);
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const viewChildrenFromFields = queriesFromFields(
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filterToMembersWithDecorator(decoratedElements, 'ViewChildren', coreModule), this.reflector,
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this.evaluator);
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const viewQueries = [...viewChildFromFields, ...viewChildrenFromFields];
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if (component.has('queries')) {
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const queriesFromDecorator = extractQueriesFromDecorator(
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component.get('queries') !, this.reflector, this.evaluator, this.isCore);
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viewQueries.push(...queriesFromDecorator.view);
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}
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// Figure out the set of styles. The ordering here is important: external resources (styleUrls)
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// precede inline styles, and styles defined in the template override styles defined in the
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// component.
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@ -288,7 +272,6 @@ export class ComponentDecoratorHandler implements
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meta: {
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...metadata,
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template,
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viewQueries,
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encapsulation,
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interpolation: template.interpolation,
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styles: styles || [],
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@ -160,10 +160,20 @@ export function extractDirectiveMetadata(
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const queries = [...contentChildFromFields, ...contentChildrenFromFields];
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// Construct the list of view queries.
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const viewChildFromFields = queriesFromFields(
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filterToMembersWithDecorator(decoratedElements, 'ViewChild', coreModule), reflector,
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evaluator);
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const viewChildrenFromFields = queriesFromFields(
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filterToMembersWithDecorator(decoratedElements, 'ViewChildren', coreModule), reflector,
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evaluator);
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const viewQueries = [...viewChildFromFields, ...viewChildrenFromFields];
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if (directive.has('queries')) {
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const queriesFromDecorator =
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extractQueriesFromDecorator(directive.get('queries') !, reflector, evaluator, isCore);
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queries.push(...queriesFromDecorator.content);
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viewQueries.push(...queriesFromDecorator.view);
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}
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// Parse the selector.
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@ -213,7 +223,7 @@ export function extractDirectiveMetadata(
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usesOnChanges,
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},
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inputs: {...inputsFromMeta, ...inputsFromFields},
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outputs: {...outputsFromMeta, ...outputsFromFields}, queries, selector,
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outputs: {...outputsFromMeta, ...outputsFromFields}, queries, viewQueries, selector,
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type: new WrappedNodeExpr(clazz.name !),
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typeArgumentCount: reflector.getGenericArityOfClass(clazz) || 0,
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typeSourceSpan: null !, usesInheritance, exportAs, providers
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@ -983,7 +983,7 @@ describe('ngtsc behavioral tests', () => {
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env.tsconfig({strictInjectionParameters: true});
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env.write('test.ts', `
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import {Injectable} from '@angular/core';
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@Injectable()
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export class Test {
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constructor(private notInjectable: string) {}
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@ -1000,7 +1000,7 @@ describe('ngtsc behavioral tests', () => {
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env.tsconfig({strictInjectionParameters: true});
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env.write('test.ts', `
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import {Injectable} from '@angular/core';
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@Injectable()
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export class Test {
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constructor(private notInjectable: string) {}
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@ -1017,7 +1017,7 @@ describe('ngtsc behavioral tests', () => {
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env.tsconfig({strictInjectionParameters: true});
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env.write('test.ts', `
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import {Injectable} from '@angular/core';
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@Injectable({
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providedIn: 'root',
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useValue: '42',
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@ -1358,6 +1358,41 @@ describe('ngtsc behavioral tests', () => {
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expect(jsContents).toMatch(viewQueryRegExp(true));
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});
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it('should generate queries for directives', () => {
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env.tsconfig();
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env.write(`test.ts`, `
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import {Directive, ContentChild, ContentChildren, TemplateRef, ViewChild} from '@angular/core';
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@Directive({
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selector: '[test]',
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queries: {
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'mview': new ViewChild('test1'),
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'mcontent': new ContentChild('test2'),
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}
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})
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class FooCmp {
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@ContentChild('bar', {read: TemplateRef}) child: any;
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@ContentChildren(TemplateRef) children: any;
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get aview(): any { return null; }
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@ViewChild('accessor') set aview(value: any) {}
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}
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`);
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env.driveMain();
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const jsContents = env.getContents('test.js');
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expect(jsContents).toMatch(varRegExp('bar'));
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expect(jsContents).toMatch(varRegExp('test1'));
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expect(jsContents).toMatch(varRegExp('test2'));
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expect(jsContents).toMatch(varRegExp('accessor'));
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// match `i0.ɵcontentQuery(dirIndex, _c1, true, TemplateRef)`
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expect(jsContents).toMatch(contentQueryRegExp('\\w+', true, 'TemplateRef'));
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// match `i0.ɵviewQuery(_c2, true, null)`
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// Note that while ViewQuery doesn't necessarily make sense on a directive, because it doesn't
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// have a view, we still need to handle it because a component could extend the directive.
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expect(jsContents).toMatch(viewQueryRegExp(true));
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});
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it('should handle queries that use forwardRef', () => {
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env.tsconfig();
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env.write(`test.ts`, `
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@ -1931,7 +1966,7 @@ describe('ngtsc behavioral tests', () => {
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it('should be able to compile an app using the factory shim', () => {
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env.tsconfig({'allowEmptyCodegenFiles': true});
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env.write('test.ts', `
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env.write('test.ts', `
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export {MyModuleNgFactory} from './my-module.ngfactory';
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`);
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@ -2217,7 +2252,7 @@ describe('ngtsc behavioral tests', () => {
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import {Component} from '@angular/core';
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import {Other} from './types';
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import Default from './types';
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@Component({selector: 'test', template: 'test'})
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export class SomeCmp {
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constructor(arg: Default, other: Other) {}
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@ -129,13 +129,13 @@ export interface R3DirectiveMetadataFacade {
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usesInheritance: boolean;
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exportAs: string[]|null;
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providers: Provider[]|null;
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viewQueries: R3QueryMetadataFacade[];
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}
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export interface R3ComponentMetadataFacade extends R3DirectiveMetadataFacade {
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template: string;
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preserveWhitespaces: boolean;
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animations: any[]|undefined;
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viewQueries: R3QueryMetadataFacade[];
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pipes: Map<string, any>;
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directives: {selector: string, expression: any}[];
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styles: string[];
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@ -133,7 +133,6 @@ export class CompilerFacadeImpl implements CompilerFacade {
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...convertDirectiveFacadeToMetadata(facade),
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selector: facade.selector || this.elementSchemaRegistry.getDefaultComponentElementName(),
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template,
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viewQueries: facade.viewQueries.map(convertToR3QueryMetadata),
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wrapDirectivesAndPipesInClosure: false,
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styles: facade.styles || [],
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encapsulation: facade.encapsulation as any,
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@ -235,6 +234,7 @@ function convertDirectiveFacadeToMetadata(facade: R3DirectiveMetadataFacade): R3
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outputs: {...outputsFromMetadata, ...outputsFromType},
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queries: facade.queries.map(convertToR3QueryMetadata),
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providers: facade.providers != null ? new WrappedNodeExpr(facade.providers) : null,
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viewQueries: facade.viewQueries.map(convertToR3QueryMetadata),
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};
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}
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@ -53,6 +53,11 @@ export interface R3DirectiveMetadata {
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*/
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queries: R3QueryMetadata[];
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/**
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* Information about the view queries made by the directive.
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*/
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viewQueries: R3QueryMetadata[];
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/**
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* Mappings indicating how the directive interacts with its host element (host bindings,
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* listeners, etc).
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@ -128,11 +133,6 @@ export interface R3ComponentMetadata extends R3DirectiveMetadata {
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nodes: t.Node[];
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};
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/**
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* Information about the view queries made by the component.
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*/
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viewQueries: R3QueryMetadata[];
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/**
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* A map of pipe names to an expression referencing the pipe type which are in the scope of the
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* compilation.
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@ -69,6 +69,10 @@ function baseDirectiveFields(
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definitionMap.set('contentQueries', createContentQueriesFunction(meta, constantPool));
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}
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if (meta.viewQueries.length) {
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definitionMap.set('viewQuery', createViewQueriesFunction(meta, constantPool));
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}
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// Initialize hostVarsCount to number of bound host properties (interpolations illegal),
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// except 'style' and 'class' properties, since they should *not* allocate host var slots
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const hostVarsCount = Object.keys(meta.host.properties)
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@ -228,10 +232,6 @@ export function compileComponentFromMetadata(
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directiveMatcher = matcher;
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}
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if (meta.viewQueries.length) {
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definitionMap.set('viewQuery', createViewQueriesFunction(meta, constantPool));
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}
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// e.g. `template: function MyComponent_Template(_ctx, _cm) {...}`
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const templateTypeName = meta.name;
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const templateName = templateTypeName ? `${templateTypeName}_Template` : null;
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@ -549,7 +549,7 @@ function createTypeForDef(meta: R3DirectiveMetadata, typeBase: o.ExternalReferen
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// Define and update any view queries
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function createViewQueriesFunction(
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meta: R3ComponentMetadata, constantPool: ConstantPool): o.Expression {
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meta: R3DirectiveMetadata, constantPool: ConstantPool): o.Expression {
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const createStatements: o.Statement[] = [];
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const updateStatements: o.Statement[] = [];
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const tempAllocator = temporaryAllocator(updateStatements, TEMPORARY_NAME);
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@ -129,13 +129,13 @@ export interface R3DirectiveMetadataFacade {
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usesInheritance: boolean;
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exportAs: string[]|null;
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providers: Provider[]|null;
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viewQueries: R3QueryMetadataFacade[];
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}
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export interface R3ComponentMetadataFacade extends R3DirectiveMetadataFacade {
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template: string;
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preserveWhitespaces: boolean;
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animations: any[]|undefined;
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viewQueries: R3QueryMetadataFacade[];
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pipes: Map<string, any>;
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directives: {selector: string, expression: any}[];
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styles: string[];
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@ -597,6 +597,12 @@ export const defineDirective = defineComponent as any as<T>(directiveDefinition:
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*/
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contentQueries?: ContentQueriesFunction<T>;
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/**
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* Additional set of instructions specific to view query processing. This could be seen as a
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* set of instructions to be inserted into the template function.
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*/
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viewQuery?: ViewQueriesFunction<T>| null;
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/**
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* Defines the name that can be used in the template to assign this directive to a variable.
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*
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@ -73,18 +73,17 @@ export function InheritDefinitionFeature(definition: DirectiveDef<any>| Componen
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}
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// Merge View Queries
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if (isComponentDef(definition) && isComponentDef(superDef)) {
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const prevViewQuery = definition.viewQuery;
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const superViewQuery = superDef.viewQuery;
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if (superViewQuery) {
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if (prevViewQuery) {
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definition.viewQuery = <T>(rf: RenderFlags, ctx: T): void => {
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superViewQuery(rf, ctx);
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prevViewQuery(rf, ctx);
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};
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} else {
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definition.viewQuery = superViewQuery;
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}
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const prevViewQuery = definition.viewQuery;
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const superViewQuery = superDef.viewQuery;
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if (superViewQuery) {
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if (prevViewQuery) {
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definition.viewQuery = <T>(rf: RenderFlags, ctx: T): void => {
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superViewQuery(rf, ctx);
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prevViewQuery(rf, ctx);
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};
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} else {
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definition.viewQuery = superViewQuery;
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}
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}
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@ -158,6 +158,13 @@ export interface DirectiveDef<T> extends BaseDef<T> {
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*/
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contentQueries: ContentQueriesFunction<T>|null;
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/**
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* Query-related instructions for a directive. Note that while directives don't have a
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* view and as such view queries won't necessarily do anything, there might be
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* components that extend the directive.
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*/
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viewQuery: ViewQueriesFunction<T>|null;
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/**
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* Refreshes host bindings on the associated directive.
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*/
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@ -63,8 +63,6 @@ export function compileComponent(type: Type<any>, metadata: Component): void {
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preserveWhitespaces: metadata.preserveWhitespaces || false,
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styles: metadata.styles || EMPTY_ARRAY,
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animations: metadata.animations,
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viewQueries:
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extractQueriesMetadata(type, getReflect().ownPropMetadata(type), isViewQuery),
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directives: [],
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changeDetection: metadata.changeDetection,
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pipes: new Map(),
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@ -157,6 +155,7 @@ export function directiveMetadata(type: Type<any>, metadata: Directive): R3Direc
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usesInheritance: !extendsDirectlyFromObject(type),
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exportAs: extractExportAs(metadata.exportAs),
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providers: metadata.providers || null,
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viewQueries: extractQueriesMetadata(type, propMetadata, isViewQuery),
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};
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}
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@ -17,7 +17,8 @@ describe('query logic', () => {
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declarations: [
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AppComp, QueryComp, SimpleCompA, SimpleCompB, StaticViewQueryComp, TextDirective,
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SubclassStaticViewQueryComp, StaticContentQueryComp, SubclassStaticContentQueryComp,
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QueryCompWithChanges, StaticContentQueryDir
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QueryCompWithChanges, StaticContentQueryDir, SuperDirectiveQueryTarget, SuperDirective,
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SubComponent
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]
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});
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});
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@ -161,6 +162,17 @@ describe('query logic', () => {
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expect(secondComponent.setEvents).toEqual(['textDir set', 'foo set']);
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});
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it('should allow for view queries to be inherited from a directive', () => {
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const fixture = TestBed.createComponent(SubComponent);
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const comp = fixture.componentInstance;
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fixture.detectChanges();
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expect(comp.headers).toBeTruthy();
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expect(comp.headers.length).toBe(2);
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expect(comp.headers.toArray().every(result => result instanceof SuperDirectiveQueryTarget))
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.toBe(true);
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});
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});
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describe('content queries', () => {
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@ -484,7 +496,7 @@ class StaticViewQueryComp {
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template: `
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<div [text]="text"></div>
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<span #foo></span>
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<div #bar></div>
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<span #baz></span>
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`
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@ -564,3 +576,21 @@ export class QueryCompWithChanges {
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showing = false;
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}
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@Component({selector: 'query-target', template: '<ng-content></ng-content>'})
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class SuperDirectiveQueryTarget {
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}
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@Directive({selector: '[super-directive]'})
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class SuperDirective {
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@ViewChildren(SuperDirectiveQueryTarget) headers !: QueryList<SuperDirectiveQueryTarget>;
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}
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@Component({
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template: `
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<query-target>One</query-target>
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<query-target>Two</query-target>
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`
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})
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class SubComponent extends SuperDirective {
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}
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@ -349,16 +349,6 @@ ivyEnabled && describe('render3 jit', () => {
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expect((TestDirective as any).ngDirectiveDef.contentQueries).not.toBeNull();
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});
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it('should not pick up view queries from directives', () => {
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@Directive({selector: '[test]'})
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class TestDirective {
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@ViewChildren('foo') foos: QueryList<ElementRef>|undefined;
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}
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expect((TestDirective as any).ngDirectiveDef.contentQueries).toBeNull();
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expect((TestDirective as any).ngDirectiveDef.viewQuery).toBeNull();
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});
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it('should compile ViewChild query on a component', () => {
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@Component({selector: 'test', template: ''})
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class TestComponent {
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