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- /**
- * @fileoverview Disallow shadowing of NaN, undefined, and Infinity (ES5 section 15.1.1)
- * @author Michael Ficarra
- */
- "use strict";
-
- //------------------------------------------------------------------------------
- // Rule Definition
- //------------------------------------------------------------------------------
-
- module.exports = {
- meta: {
- type: "suggestion",
-
- docs: {
- description: "disallow identifiers from shadowing restricted names",
- category: "Variables",
- recommended: false,
- url: "https://eslint.org/docs/rules/no-shadow-restricted-names"
- },
-
- schema: []
- },
-
- create(context) {
-
- const RESTRICTED = ["undefined", "NaN", "Infinity", "arguments", "eval"];
-
- return {
- "VariableDeclaration, :function, CatchClause"(node) {
- for (const variable of context.getDeclaredVariables(node)) {
- if (variable.defs.length > 0 && RESTRICTED.includes(variable.name)) {
- context.report({
- node: variable.defs[0].name,
- message: "Shadowing of global property '{{idName}}'.",
- data: {
- idName: variable.name
- }
- });
- }
- }
- }
- };
-
- }
- };
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