53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
|
/**
|
||
|
|
* @fileoverview Rule to flag when regex literals are not wrapped in parens
|
||
|
|
* @author Matt DuVall <http://www.mattduvall.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
// Rule Definition
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
meta: {
|
||
|
|
docs: {
|
||
|
|
description: "require parenthesis around regex literals",
|
||
|
|
category: "Stylistic Issues",
|
||
|
|
recommended: false
|
||
|
|
},
|
||
|
|
|
||
|
|
schema: [],
|
||
|
|
|
||
|
|
fixable: "code"
|
||
|
|
},
|
||
|
|
|
||
|
|
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,
|
||
|
|
message: "Wrap the regexp literal in parens to disambiguate the slash.",
|
||
|
|
fix: fixer => fixer.replaceText(node, `(${sourceCode.getText(node)})`)
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
};
|