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node_assert.ts
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47 lines (44 loc) · 1.23 KB
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/**
* @license
* Copyright Google LLC 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.dev/license
*/
import {assertDefined, throwError} from '../util/assert';
import {TNode, TNodeType, toTNodeTypeAsString} from './interfaces/node';
export function assertTNodeType(
tNode: TNode | null,
expectedTypes: TNodeType,
message?: string,
): void {
assertDefined(tNode, 'should be called with a TNode');
if ((tNode.type & expectedTypes) === 0) {
throwError(
message ||
`Expected [${toTNodeTypeAsString(expectedTypes)}] but got ${toTNodeTypeAsString(
tNode.type,
)}.`,
);
}
}
export function assertPureTNodeType(type: TNodeType) {
if (
!(
type === TNodeType.Element ||
type === TNodeType.Text ||
type === TNodeType.Container ||
type === TNodeType.ElementContainer ||
type === TNodeType.Icu ||
type === TNodeType.Projection ||
type === TNodeType.Placeholder ||
type === TNodeType.LetDeclaration
)
) {
throwError(
`Expected TNodeType to have only a single type selected, but got ${toTNodeTypeAsString(
type,
)}.`,
);
}
}