41 lines
1.4 KiB
TypeScript
41 lines
1.4 KiB
TypeScript
/*---------------------------------------------------------------------------------------------
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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, AST_NODE_TYPES } from '@typescript-eslint/experimental-utils';
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export = new class ApiLiteralOrTypes 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#creating-objects' },
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messages: { sync: '`createXYZ`-functions are constructor-replacements and therefore must return sync', }
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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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['TSDeclareFunction Identifier[name=/create.*/]']: (node: any) => {
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const decl = <TSESTree.FunctionDeclaration>(<TSESTree.Identifier>node).parent;
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if (decl.returnType?.typeAnnotation.type !== AST_NODE_TYPES.TSTypeReference) {
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return;
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}
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if (decl.returnType.typeAnnotation.typeName.type !== AST_NODE_TYPES.Identifier) {
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return;
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}
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const ident = decl.returnType.typeAnnotation.typeName.name;
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if (ident === 'Promise' || ident === 'Thenable') {
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context.report({
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node,
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messageId: 'sync'
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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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