82 lines
2.0 KiB
JavaScript
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,
|
|
});
|
|
});
|
|
},
|
|
};
|
|
}),
|
|
};
|