b0578061ce
The `Δ` caused issue with other infrastructure, and we are temporarily changing it to `ɵɵ`. This commit also patches ts_api_guardian_test and AIO to understand `ɵɵ`. PR Close #29850
43 lines
1.4 KiB
TypeScript
43 lines
1.4 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 {assertGreaterThan, assertLessThan} from '../../util/assert';
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import {executePreOrderHooks} from '../hooks';
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import {HEADER_OFFSET, TVIEW} from '../interfaces/view';
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import {getCheckNoChangesMode, getLView, setSelectedIndex} from '../state';
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/**
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* Selects an element for later binding instructions.
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*
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* Used in conjunction with instructions like {@link property} to act on elements with specified
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* indices, for example those created with {@link element} or {@link elementStart}.
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*
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* ```ts
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* (rf: RenderFlags, ctx: any) => {
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* if (rf & 1) {
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* element(0, 'div');
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* }
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* if (rf & 2) {
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* select(0); // Select the <div/> created above.
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* property('title', 'test');
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* }
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* }
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* ```
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* @param index the index of the item to act on with the following instructions
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*
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* @codeGenApi
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*/
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export function ɵɵselect(index: number): void {
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ngDevMode && assertGreaterThan(index, -1, 'Invalid index');
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ngDevMode &&
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assertLessThan(
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index, getLView().length - HEADER_OFFSET, 'Should be within range for the view data');
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setSelectedIndex(index);
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const lView = getLView();
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executePreOrderHooks(lView, lView[TVIEW], getCheckNoChangesMode(), index);
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}
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