orionsoft-react-scripts
Version:
Orionsoft Configuration and scripts for Create React App.
47 lines (36 loc) • 1.1 kB
JavaScript
/**
* @fileoverview Enforce tabIndex value is not greater than zero.
* @author Ethan Cohen
*/
// ----------------------------------------------------------------------------
// Rule Definition
// ----------------------------------------------------------------------------
import { getLiteralPropValue, propName } from 'jsx-ast-utils';
const errorMessage = 'Avoid positive integer values for tabIndex.';
module.exports = {
meta: {
docs: {},
schema: [
{ type: 'object' },
],
},
create: context => ({
JSXAttribute: (attribute) => {
const name = propName(attribute);
const normalizedName = name ? name.toUpperCase() : '';
// Check if tabIndex is the attribute
if (normalizedName !== 'TABINDEX') {
return;
}
// Only check literals because we can't infer values from certain expressions.
const value = Number(getLiteralPropValue(attribute));
if (isNaN(value) || value <= 0) {
return;
}
context.report({
node: attribute,
message: errorMessage,
});
},
}),
};