35 lines
1.1 KiB
TypeScript
35 lines
1.1 KiB
TypeScript
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import * as eslint from 'eslint';
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import { TSESTree } from '@typescript-eslint/experimental-utils';
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export = new class ApiTypeDiscrimination implements eslint.Rule.RuleModule {
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readonly meta: eslint.Rule.RuleMetaData = {
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docs: { url: 'https://github.com/microsoft/vscode/wiki/Extension-API-guidelines' },
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messages: {
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noTypeDiscrimination: 'Do not use type descrimination properties'
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}
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};
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create(context: eslint.Rule.RuleContext): eslint.Rule.RuleListener {
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return {
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['TSPropertySignature[optional=undefined] TSTypeAnnotation TSLiteralType Literal']: (node: any) => {
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const raw = String((<TSESTree.Literal>node).raw)
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if (/^('|").*\1$/.test(raw)) {
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context.report({
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node: node,
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messageId: 'noTypeDiscrimination'
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});
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}
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}
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}
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}
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};
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