src: disallow copy/move fns/constructors

Author: anonrig

src/util.h

@@ -388,6 +388,16 @@ constexpr size_t strsize(const T (&)[N]) {
 template <typename T, size_t kStackStorageSize = 1024>
 class MaybeStackBuffer {
  public:
+  // Disallow move constructor
+  MaybeStackBuffer(MaybeStackBuffer&&) = delete;
+  // Disallow copy constructor
+  MaybeStackBuffer(const MaybeStackBuffer&) = delete;
+  // Disallow move assignment operator
+  MaybeStackBuffer& operator=(MaybeStackBuffer&& other) = delete;
+  // Disallow copy assignment operator
+  MaybeStackBuffer&
+    operator=(MaybeStackBuffer& other) = delete;  // NOLINT(runtime/references)
+
   const T* out() const {
     return buf_;
   }