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/*
* SonarQube
* Copyright (C) 2009-2024 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
module.exports = {
meta: {
messages: {
convertClassToFunctionComponent:
'A class component only containing a render() method should be converted to a function component',
},
},
create(context) {
return {
ClassDeclaration(node) {
const methods = node.body.body.filter(
(n) =>
n.type === 'MethodDefinition' ||
(n.type === 'PropertyDefinition' &&
n.value &&
n.value.type === 'ArrowFunctionExpression')
);
if (methods.length === 1 && methods[0].key.name === 'render') {
context.report({ node, messageId: 'convertClassToFunctionComponent' });
}
},
};
},
};
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