self-closing-comp.js
1.24 KB
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/**
* @fileoverview Prevent extra closing tags for components without children
* @author Yannick Croissant
*/
'use strict';
// ------------------------------------------------------------------------------
// Rule Definition
// ------------------------------------------------------------------------------
module.exports = function(context) {
var tagConvention = /^[a-z]|\-/;
function isTagName(name) {
return tagConvention.test(name);
}
function isComponent(node) {
return node.name && node.name.type === 'JSXIdentifier' && !isTagName(node.name.name);
}
function hasChildren(node) {
var childrens = node.parent.children;
if (
!childrens.length ||
(childrens.length === 1 && childrens[0].type === 'Literal' && !childrens[0].value.trim())
) {
return false;
}
return true;
}
// --------------------------------------------------------------------------
// Public
// --------------------------------------------------------------------------
return {
JSXOpeningElement: function(node) {
if (!isComponent(node) || node.selfClosing || hasChildren(node)) {
return;
}
context.report(node, 'Empty components are self-closing');
}
};
};
module.exports.schema = [];