| /** |
| * @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 }, |
| }); |
| } |
| }); |
| } |
| } |
| }, |
| }; |
| }, |
| }; |