71 lines
2.2 KiB
TypeScript
71 lines
2.2 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 { dirname, relative } from 'path';
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import minimatch from 'minimatch';
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export = new class implements eslint.Rule.RuleModule {
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readonly meta: eslint.Rule.RuleMetaData = {
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messages: {
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layerbreaker: 'You are only allowed to define limited top level functions.'
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},
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schema: {
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type: "array",
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items: {
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type: "object",
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additionalProperties: {
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type: "array",
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items: {
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type: "string"
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}
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}
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}
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}
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};
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create(context: eslint.Rule.RuleContext): eslint.Rule.RuleListener {
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let fileRelativePath = relative(dirname(__dirname), context.getFilename());
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if (!fileRelativePath.endsWith('/')) {
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fileRelativePath += '/';
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}
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const ruleArgs = <Record<string, string[]>>context.options[0];
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const matchingKey = Object.keys(ruleArgs).find(key => fileRelativePath.startsWith(key) || minimatch(fileRelativePath, key));
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if (!matchingKey) {
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// nothing
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return {};
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}
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const restrictedFunctions = ruleArgs[matchingKey];
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return {
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FunctionDeclaration: (node: any) => {
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const isTopLevel = node.parent.type === 'Program';
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const functionName = node.id.name;
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if (isTopLevel && !restrictedFunctions.includes(node.id.name)) {
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context.report({
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node,
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message: `Top-level function '${functionName}' is restricted in this file. Allowed functions are: ${restrictedFunctions.join(', ')}.`
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});
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}
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},
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ExportNamedDeclaration(node: any) {
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if (node.declaration && node.declaration.type === 'FunctionDeclaration') {
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const functionName = node.declaration.id.name;
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const isTopLevel = node.parent.type === 'Program';
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if (isTopLevel && !restrictedFunctions.includes(node.declaration.id.name)) {
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context.report({
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node,
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message: `Top-level function '${functionName}' is restricted in this file. Allowed functions are: ${restrictedFunctions.join(', ')}.`
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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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};
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