no-did-mount-set-state.js
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/**
* @fileoverview Prevent usage of setState in componentDidMount
* @author Yannick Croissant
*/
'use strict';
// ------------------------------------------------------------------------------
// Rule Definition
// ------------------------------------------------------------------------------
module.exports = function(context) {
var mode = context.options[0] || 'never';
// --------------------------------------------------------------------------
// Public
// --------------------------------------------------------------------------
return {
CallExpression: function(node) {
var callee = node.callee;
if (
callee.type !== 'MemberExpression' ||
callee.object.type !== 'ThisExpression' ||
callee.property.name !== 'setState'
) {
return;
}
var ancestors = context.getAncestors(callee).reverse();
var depth = 0;
for (var i = 0, j = ancestors.length; i < j; i++) {
if (/Function(Expression|Declaration)$/.test(ancestors[i].type)) {
depth++;
}
if (
(ancestors[i].type !== 'Property' && ancestors[i].type !== 'MethodDefinition') ||
ancestors[i].key.name !== 'componentDidMount' ||
(mode === 'allow-in-func' && depth > 1)
) {
continue;
}
context.report(callee, 'Do not use setState in componentDidMount');
break;
}
}
};
};
module.exports.schema = [{
enum: ['allow-in-func']
}];