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qwen/nodejs/node_modules/eslint/lib/rules/no-new-wrappers.js

@@ -0,0 +1,60 @@
+/**
+ * @fileoverview Rule to flag when using constructor for wrapper objects
+ * @author Ilya Volodin
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const { getVariableByName } = require("./utils/ast-utils");
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../shared/types').Rule} */
+module.exports = {
+    meta: {
+        type: "suggestion",
+
+        docs: {
+            description: "Disallow `new` operators with the `String`, `Number`, and `Boolean` objects",
+            recommended: false,
+            url: "https://eslint.org/docs/latest/rules/no-new-wrappers"
+        },
+
+        schema: [],
+
+        messages: {
+            noConstructor: "Do not use {{fn}} as a constructor."
+        }
+    },
+
+    create(context) {
+        const { sourceCode } = context;
+
+        return {
+
+            NewExpression(node) {
+                const wrapperObjects = ["String", "Number", "Boolean"];
+                const { name } = node.callee;
+
+                if (wrapperObjects.includes(name)) {
+                    const variable = getVariableByName(sourceCode.getScope(node), name);
+
+                    if (variable && variable.identifiers.length === 0) {
+                        context.report({
+                            node,
+                            messageId: "noConstructor",
+                            data: { fn: name }
+                        });
+                    }
+                }
+            }
+        };
+
+    }
+};