react-scripts
Version:
Configuration and scripts for Create React App.
47 lines (36 loc) • 1.39 kB
JavaScript
/**
* @fileoverview Rule to flag when regex literals are not wrapped in parens
* @author Matt DuVall <http://www.mattduvall.com>
*/
;
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
docs: {
description: "require parenthesis around regex literals",
category: "Stylistic Issues",
recommended: false
},
schema: []
},
create(context) {
const sourceCode = context.getSourceCode();
return {
Literal(node) {
const token = sourceCode.getFirstToken(node),
nodeType = token.type;
if (nodeType === "RegularExpression") {
const source = sourceCode.getTokenBefore(node);
const ancestors = context.getAncestors();
const grandparent = ancestors[ancestors.length - 1];
if (grandparent.type === "MemberExpression" && grandparent.object === node &&
(!source || source.value !== "(")) {
context.report(node, "Wrap the regexp literal in parens to disambiguate the slash.");
}
}
}
};
}
};