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| /** | |
| * @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: { | |
| type: "layout", | |
| docs: { | |
| description: "require parenthesis around regex literals", | |
| category: "Stylistic Issues", | |
| recommended: false, | |
| url: "https://eslint.org/docs/rules/wrap-regex" | |
| }, | |
| schema: [], | |
| fixable: "code", | |
| messages: { | |
| requireParens: "Wrap the regexp literal in parens to disambiguate the slash." | |
| } | |
| }, | |
| create(context) { | |
| const sourceCode = context.getSourceCode(); | |
| return { | |
| Literal(node) { | |
| const token = sourceCode.getFirstToken(node), | |
| nodeType = token.type; | |
| if (nodeType === "RegularExpression") { | |
| const beforeToken = sourceCode.getTokenBefore(node); | |
| const afterToken = sourceCode.getTokenAfter(node); | |
| const ancestors = context.getAncestors(); | |
| const grandparent = ancestors[ancestors.length - 1]; | |
| if (grandparent.type === "MemberExpression" && grandparent.object === node && | |
| !(beforeToken && beforeToken.value === "(" && afterToken && afterToken.value === ")")) { | |
| context.report({ | |
| node, | |
| messageId: "requireParens", | |
| fix: fixer => fixer.replaceText(node, `(${sourceCode.getText(node)})`) | |
| }); | |
| } | |
| } | |
| } | |
| }; | |
| } | |
| }; |