kylin-code/.eslintplugin/code-must-use-result.ts

36 lines
1.3 KiB
TypeScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as eslint from 'eslint';
import { TSESTree } from '@typescript-eslint/experimental-utils';
const VALID_USES = new Set<TSESTree.AST_NODE_TYPES | undefined>([
TSESTree.AST_NODE_TYPES.AwaitExpression,
TSESTree.AST_NODE_TYPES.VariableDeclarator,
]);
export = new class MustUseResults implements eslint.Rule.RuleModule {
create(context: eslint.Rule.RuleContext): eslint.Rule.RuleListener {
const config = <{ message: string, functions: string[] }[]>context.options[0];
const listener: eslint.Rule.RuleListener = {};
for (const { message, functions } of config) {
for (const fn of functions) {
const query = `CallExpression[callee.property.name='${fn}'], CallExpression[callee.name='${fn}']`
listener[query] = (node: any) => {
const cast: TSESTree.CallExpression = node;
if (!VALID_USES.has(cast.parent?.type)) {
context.report({ node, message });
}
}
}
}
return listener;
}
};