parser/html/nsHtml5DependentUTF16Buffer.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef nsHtml5DependentUTF16Buffer_h_
   6 #define nsHtml5DependentUTF16Buffer_h_
   7
   8 #include "nscore.h"
   9 #include "nsHtml5OwningUTF16Buffer.h"
  10
  11 class NS_STACK_CLASS nsHtml5DependentUTF16Buffer : public nsHtml5UTF16Buffer
  12 {
  13   public:
  14     /**
  15      * Wraps a string without taking ownership of the buffer. aToWrap MUST NOT
  16      * go away or be shortened while nsHtml5DependentUTF16Buffer is in use.
  17      */
  18     nsHtml5DependentUTF16Buffer(const nsAString& aToWrap);
  19
  20     ~nsHtml5DependentUTF16Buffer();
  21
  22     /**
  23      * Copies the currently unconsumed part of this buffer into a new
  24      * heap-allocated nsHtml5OwningUTF16Buffer. The new object is allocated
  25      * with a fallible allocator. If the allocation fails, nullptr is returned.
  26      * @return heap-allocated copy or nullptr if memory allocation failed
  27      */
  28     already_AddRefed<nsHtml5OwningUTF16Buffer> FalliblyCopyAsOwningBuffer();
  29 };
  30
  31 #endif // nsHtml5DependentUTF16Buffer_h_