schema-dts-gen
Version:
Generate TypeScript Definitions for Schema.org Schema
29 lines • 1.02 kB
JavaScript
/**
* Copyright 2023 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import ts from 'typescript';
const { factory, SyntaxKind } = ts;
export function typeUnion(...args) {
const types = args.filter((elem) => !!elem);
switch (types.length) {
case 0:
return factory.createKeywordTypeNode(SyntaxKind.NeverKeyword);
case 1:
return types[0];
default:
return factory.createUnionTypeNode(types);
}
}
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