85 lines
2.6 KiB
JavaScript
85 lines
2.6 KiB
JavaScript
/**
|
|
* @fileoverview Enforce PascalCase for user-defined JSX components
|
|
* @author Jake Marsh
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
const elementType = require('jsx-ast-utils/elementType');
|
|
const XRegExp = require('xregexp');
|
|
const docsUrl = require('../util/docsUrl');
|
|
const jsxUtil = require('../util/jsx');
|
|
|
|
// ------------------------------------------------------------------------------
|
|
// Constants
|
|
// ------------------------------------------------------------------------------
|
|
|
|
// eslint-disable-next-line no-new
|
|
const hasU = (function hasU() { try { new RegExp('o', 'u'); return true; } catch (e) { return false; } }());
|
|
|
|
const PASCAL_CASE_REGEX = XRegExp('^(.*[.])*([\\p{Lu}]|[\\p{Lu}]+[\\p{Ll}0-9]+(?:[\\p{Lu}0-9]+[\\p{Ll}0-9]*)*)$', hasU ? 'u' : '');
|
|
const ALL_CAPS_TAG_REGEX = XRegExp('^[\\p{Lu}0-9]+([\\p{Lu}0-9_]*[\\p{Lu}0-9]+)?$', hasU ? 'u' : '');
|
|
|
|
// ------------------------------------------------------------------------------
|
|
// Rule Definition
|
|
// ------------------------------------------------------------------------------
|
|
|
|
module.exports = {
|
|
meta: {
|
|
docs: {
|
|
description: 'Enforce PascalCase for user-defined JSX components',
|
|
category: 'Stylistic Issues',
|
|
recommended: false,
|
|
url: docsUrl('jsx-pascal-case')
|
|
},
|
|
|
|
schema: [{
|
|
type: 'object',
|
|
properties: {
|
|
allowAllCaps: {
|
|
type: 'boolean'
|
|
},
|
|
ignore: {
|
|
type: 'array'
|
|
}
|
|
},
|
|
additionalProperties: false
|
|
}]
|
|
},
|
|
|
|
create(context) {
|
|
const configuration = context.options[0] || {};
|
|
const allowAllCaps = configuration.allowAllCaps || false;
|
|
const ignore = configuration.ignore || [];
|
|
|
|
return {
|
|
JSXOpeningElement(node) {
|
|
let name = elementType(node);
|
|
if (name.length === 1) return undefined;
|
|
|
|
// Get namespace if the type is JSXNamespacedName or JSXMemberExpression
|
|
if (name.indexOf(':') > -1) {
|
|
name = name.substring(0, name.indexOf(':'));
|
|
} else if (name.indexOf('.') > -1) {
|
|
name = name.substring(0, name.indexOf('.'));
|
|
}
|
|
|
|
const isPascalCase = PASCAL_CASE_REGEX.test(name);
|
|
const isCompatTag = jsxUtil.isDOMComponent(node);
|
|
const isAllowedAllCaps = allowAllCaps && ALL_CAPS_TAG_REGEX.test(name);
|
|
const isIgnored = ignore.indexOf(name) !== -1;
|
|
|
|
if (!isPascalCase && !isCompatTag && !isAllowedAllCaps && !isIgnored) {
|
|
let message = `Imported JSX component ${name} must be in PascalCase`;
|
|
|
|
if (allowAllCaps) {
|
|
message += ' or SCREAMING_SNAKE_CASE';
|
|
}
|
|
|
|
context.report({node, message});
|
|
}
|
|
}
|
|
};
|
|
}
|
|
};
|