jsx-pascal-case.js
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/**
* @fileoverview Enforce PasalCase for user-defined JSX components
* @author Jake Marsh
*/
'use strict';
// ------------------------------------------------------------------------------
// Constants
// ------------------------------------------------------------------------------
var PASCAL_CASE_REGEX = /^[A-Z0-9]+[a-z0-9]+(?:[A-Z0-9]+[a-z0-9]*)*$/;
var COMPAT_TAG_REGEX = /^[a-z]|\-/;
// ------------------------------------------------------------------------------
// Rule Definition
// ------------------------------------------------------------------------------
module.exports = function(context) {
return {
JSXOpeningElement: function(node) {
switch (node.name.type) {
case 'JSXIdentifier':
node = node.name;
break;
case 'JSXMemberExpression':
node = node.name.object;
break;
case 'JSXNamespacedName':
node = node.name.namespace;
break;
default:
break;
}
var isPascalCase = PASCAL_CASE_REGEX.test(node.name);
var isCompatTag = COMPAT_TAG_REGEX.test(node.name);
if (!isPascalCase && !isCompatTag) {
context.report(node, 'Imported JSX component ' + node.name + ' must be in PascalCase');
}
}
};
};