dom/base/nsAttrValueOrString.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "nsAttrValueOrString.h"
   8 #include "nsAttrValueInlines.h"
   9
  10 const nsAString& nsAttrValueOrString::String() const {
  11   if (mStringPtr) {
  12     return *mStringPtr;
  13   }
  14
  15   if (!mAttrValue) {
  16     mStringPtr = &mCheapString;
  17     return *mStringPtr;
  18   }
  19
  20   if (mAttrValue->Type() == nsAttrValue::eString) {
  21     mCheapString = mAttrValue->GetStringValue();
  22     mStringPtr = &mCheapString;
  23     return *mStringPtr;
  24   }
  25
  26   mAttrValue->ToString(mCheapString);
  27   mStringPtr = &mCheapString;
  28   return *mStringPtr;
  29 }