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