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tools/oxlint/anti-slop/rules/no-reflect-get.ts

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+import { defineRule } from "@oxlint/plugins";
+
+import { isGlobalReflectMethodCall } from "../shared/reflect-method.ts";
+
+/** Ban Reflect.get, which bypasses ordinary property access and useful type evidence. */
+export const noReflectGetRule = defineRule({
+  meta: {
+    type: "problem",
+    docs: {
+      description:
+        "Disallow Reflect.get; use typed property access or parse dynamic input into a domain type.",
+    },
+    messages: {
+      reflectGet:
+        "Replace `Reflect.get` with typed property access. Parse dynamic input into a named domain type before reading it.",
+    },
+  },
+  createOnce(context) {
+    return {
+      CallExpression(node) {
+        if (node.callee.type === "Super" || node.callee.type === "V8IntrinsicExpression") return;
+        if (isGlobalReflectMethodCall(context.sourceCode, node.callee, "get")) {
+          context.report({ node, messageId: "reflectGet" });
+        }
+      },
+    };
+  },
+});