源码快照 @ 2026-09-02 (source-only, 剔除非源码素材)

packages/enterprise-mcp-mock-server/src/immutability.ts

@@ -0,0 +1,23 @@
+export type DeepReadonly<Value> =
+  Value extends (...arguments_: never[]) => unknown
+    ? Value
+    : Value extends readonly (infer Item)[]
+      ? readonly DeepReadonly<Item>[]
+      : Value extends object
+        ? { readonly [Key in keyof Value]: DeepReadonly<Value[Key]> }
+        : Value
+
+/**
+ * Recursively freezes the plain data contracts exposed by this package.
+ *
+ * The mock server deliberately publishes immutable scenario, profile, fault,
+ * snapshot, and trace values. TypeScript's `readonly` is compile-time only;
+ * freezing the runtime value prevents a JavaScript consumer from silently
+ * changing active server state or shared catalog fixtures.
+ */
+export function deepFreeze<Value>(value: Value): Value {
+  if (value === null || typeof value !== "object" || Object.isFrozen(value)) return value
+
+  for (const nested of Object.values(value)) deepFreeze(nested)
+  return Object.freeze(value)
+}