@angular/core
Version:
Angular - the core framework
71 lines • 8.14 kB
JavaScript
/**
* @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
*/
// The functions in this file verify that the assumptions we are making
// about state in an instruction are correct before implementing any logic.
// They are meant only to be called in dev mode as sanity checks.
import { stringify } from './stringify';
export function assertNumber(actual, msg) {
if (typeof actual != 'number') {
throwError(msg);
}
}
export function assertEqual(actual, expected, msg) {
if (actual != expected) {
throwError(msg);
}
}
export function assertNotEqual(actual, expected, msg) {
if (actual == expected) {
throwError(msg);
}
}
export function assertSame(actual, expected, msg) {
if (actual !== expected) {
throwError(msg);
}
}
export function assertNotSame(actual, expected, msg) {
if (actual === expected) {
throwError(msg);
}
}
export function assertLessThan(actual, expected, msg) {
if (actual >= expected) {
throwError(msg);
}
}
export function assertGreaterThan(actual, expected, msg) {
if (actual <= expected) {
throwError(msg);
}
}
export function assertNotDefined(actual, msg) {
if (actual != null) {
throwError(msg);
}
}
export function assertDefined(actual, msg) {
if (actual == null) {
throwError(msg);
}
}
export function throwError(msg) {
// tslint:disable-next-line
debugger; // Left intentionally for better debugger experience.
throw new Error(`ASSERTION ERROR: ${msg}`);
}
export function assertDomNode(node) {
// If we're in a worker, `Node` will not be defined.
assertEqual((typeof Node !== 'undefined' && node instanceof Node) ||
(typeof node === 'object' && node.constructor.name === 'WebWorkerRenderNode'), true, `The provided value must be an instance of a DOM Node but got ${stringify(node)}`);
}
export function assertDataInRange(arr, index) {
const maxLen = arr ? arr.length : 0;
assertLessThan(index, maxLen, `Index expected to be less than ${maxLen} but got ${index}`);
}
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