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- /**
- * @fileoverview Rule to disallow use of the new operator with global non-constructor functions
- * @author Sosuke Suzuki
- */
- "use strict";
- //------------------------------------------------------------------------------
- // Helpers
- //------------------------------------------------------------------------------
- const nonConstructorGlobalFunctionNames = ["Symbol", "BigInt"];
- //------------------------------------------------------------------------------
- // Rule Definition
- //------------------------------------------------------------------------------
- /** @type {import('../types').Rule.RuleModule} */
- module.exports = {
- meta: {
- type: "problem",
- docs: {
- description:
- "Disallow `new` operators with global non-constructor functions",
- recommended: true,
- url: "https://eslint.org/docs/latest/rules/no-new-native-nonconstructor",
- },
- schema: [],
- messages: {
- noNewNonconstructor:
- "`{{name}}` cannot be called as a constructor.",
- },
- },
- create(context) {
- const sourceCode = context.sourceCode;
- return {
- "Program:exit"(node) {
- const globalScope = sourceCode.getScope(node);
- for (const nonConstructorName of nonConstructorGlobalFunctionNames) {
- const variable = globalScope.set.get(nonConstructorName);
- if (variable && variable.defs.length === 0) {
- variable.references.forEach(ref => {
- const idNode = ref.identifier;
- const parent = idNode.parent;
- if (
- parent &&
- parent.type === "NewExpression" &&
- parent.callee === idNode
- ) {
- context.report({
- node: idNode,
- messageId: "noNewNonconstructor",
- data: { name: nonConstructorName },
- });
- }
- });
- }
- }
- },
- };
- },
- };
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