61 lines
2.3 KiB
TypeScript
61 lines
2.3 KiB
TypeScript
|
/**
|
||
|
|
* @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 * as e from '../../../src/expression_parser/ast';
|
||
|
|
import * as a from '../../../src/render3/r3_ast';
|
||
|
|
import {DirectiveMeta} from '../../../src/render3/view/t2_api';
|
||
|
|
import {R3TargetBinder} from '../../../src/render3/view/t2_binder';
|
||
|
|
import {parseTemplate} from '../../../src/render3/view/template';
|
||
|
|
import {CssSelector, SelectorMatcher} from '../../../src/selector';
|
||
|
|
|
||
|
|
import {findExpression} from './util';
|
||
|
|
|
||
|
|
function makeSelectorMatcher(): SelectorMatcher<DirectiveMeta> {
|
||
|
|
const matcher = new SelectorMatcher<DirectiveMeta>();
|
||
|
|
matcher.addSelectables(CssSelector.parse('[ngFor][ngForOf]'), {
|
||
|
|
name: 'NgFor',
|
||
|
|
exportAs: null,
|
||
|
|
inputs: {'ngForOf': 'ngForOf'},
|
||
|
|
outputs: {},
|
||
|
|
isComponent: false,
|
||
|
|
});
|
||
|
|
return matcher;
|
||
|
|
}
|
||
|
|
|
||
|
|
describe('t2 binding', () => {
|
||
|
|
it('should bind a simple template', () => {
|
||
|
|
const template =
|
||
|
|
parseTemplate('<div *ngFor="let item of items">{{item.name}}</div>', '', {}, '');
|
||
|
|
const binder = new R3TargetBinder(new SelectorMatcher<DirectiveMeta>());
|
||
|
|
const res = binder.bind({template: template.nodes});
|
||
|
|
|
||
|
|
const itemBinding = (findExpression(template.nodes, '{{item.name}}') !as e.Interpolation)
|
||
|
|
.expressions[0] as e.PropertyRead;
|
||
|
|
const item = itemBinding.receiver;
|
||
|
|
const itemTarget = res.getExpressionTarget(item);
|
||
|
|
if (!(itemTarget instanceof a.Variable)) {
|
||
|
|
return fail('Expected item to point to a Variable');
|
||
|
|
}
|
||
|
|
expect(itemTarget.value).toBe('$implicit');
|
||
|
|
const itemTemplate = res.getTemplateOfSymbol(itemTarget);
|
||
|
|
expect(itemTemplate).not.toBeNull();
|
||
|
|
expect(res.getNestingLevel(itemTemplate !)).toBe(1);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should match directives when binding a simple template', () => {
|
||
|
|
const template =
|
||
|
|
parseTemplate('<div *ngFor="let item of items">{{item.name}}</div>', '', {}, '');
|
||
|
|
const binder = new R3TargetBinder(makeSelectorMatcher());
|
||
|
|
const res = binder.bind({template: template.nodes});
|
||
|
|
const tmpl = template.nodes[0] as a.Template;
|
||
|
|
const directives = res.getDirectivesOfNode(tmpl) !;
|
||
|
|
expect(directives).not.toBeNull();
|
||
|
|
expect(directives.length).toBe(1);
|
||
|
|
expect(directives[0].name).toBe('NgFor');
|
||
|
|
});
|
||
|
|
});
|