96 lines
2.2 KiB
JavaScript
96 lines
2.2 KiB
JavaScript
/**
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* @fileoverview Restrict file extensions that may contain JSX
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* @author Joe Lencioni
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*/
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'use strict';
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const path = require('path');
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const docsUrl = require('../util/docsUrl');
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// ------------------------------------------------------------------------------
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// Constants
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// ------------------------------------------------------------------------------
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const DEFAULTS = {
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extensions: ['.jsx']
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};
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// ------------------------------------------------------------------------------
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// Rule Definition
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// ------------------------------------------------------------------------------
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module.exports = {
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meta: {
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docs: {
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description: 'Restrict file extensions that may contain JSX',
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category: 'Stylistic Issues',
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recommended: false,
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url: docsUrl('jsx-filename-extension')
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},
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schema: [{
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type: 'object',
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properties: {
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extensions: {
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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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additionalProperties: false
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}]
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},
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create(context) {
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let invalidExtension;
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let invalidNode;
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function getExtensionsConfig() {
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return context.options[0] && context.options[0].extensions || DEFAULTS.extensions;
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}
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function handleJSX(node) {
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const filename = context.getFilename();
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if (filename === '<text>') {
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return;
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}
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if (invalidNode) {
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return;
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}
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const allowedExtensions = getExtensionsConfig();
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const isAllowedExtension = allowedExtensions.some(extension => filename.slice(-extension.length) === extension);
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if (isAllowedExtension) {
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return;
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}
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invalidNode = node;
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invalidExtension = path.extname(filename);
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}
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// --------------------------------------------------------------------------
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// Public
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// --------------------------------------------------------------------------
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return {
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JSXElement: handleJSX,
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JSXFragment: handleJSX,
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'Program:exit'() {
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if (!invalidNode) {
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return;
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}
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context.report({
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node: invalidNode,
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message: `JSX not allowed in files with extension '${invalidExtension}'`
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});
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}
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};
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}
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};
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