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url_tracker_tool/node_modules/eslint-plugin-react/lib/rules/no-multi-comp.js
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82 lines
2.0 KiB
JavaScript

/**
* @fileoverview Prevent multiple component definition per file
* @author Yannick Croissant
*/
'use strict';
const values = require('object.values');
const Components = require('../util/Components');
const docsUrl = require('../util/docsUrl');
const report = require('../util/report');
// ------------------------------------------------------------------------------
// Rule Definition
// ------------------------------------------------------------------------------
const messages = {
onlyOneComponent: 'Declare only one React component per file',
};
/** @type {import('eslint').Rule.RuleModule} */
module.exports = {
meta: {
docs: {
description: 'Disallow multiple component definition per file',
category: 'Stylistic Issues',
recommended: false,
url: docsUrl('no-multi-comp'),
},
messages,
schema: [{
type: 'object',
properties: {
ignoreStateless: {
default: false,
type: 'boolean',
},
},
additionalProperties: false,
}],
},
create: Components.detect((context, components, utils) => {
const configuration = context.options[0] || {};
const ignoreStateless = configuration.ignoreStateless || false;
/**
* Checks if the component is ignored
* @param {Object} component The component being checked.
* @returns {boolean} True if the component is ignored, false if not.
*/
function isIgnored(component) {
return (
ignoreStateless && (
/Function/.test(component.node.type)
|| utils.isPragmaComponentWrapper(component.node)
)
);
}
return {
'Program:exit'() {
if (components.length() <= 1) {
return;
}
values(components.list())
.filter((component) => !isIgnored(component))
.slice(1)
.forEach((component) => {
report(context, messages.onlyOneComponent, 'onlyOneComponent', {
node: component.node,
});
});
},
};
}),
};