xpcom/string/nsTDependentSubstring.cpp


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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

void
nsTDependentSubstring_CharT::Rebind(const substring_type& str,
                                    uint32_t startPos, uint32_t length)
{
  // If we currently own a buffer, release it.
  Finalize();

  size_type strLength = str.Length();

  if (startPos > strLength) {
    startPos = strLength;
  }

  mData = const_cast<char_type*>(static_cast<const char_type*>(str.Data())) + startPos;
  mLength = XPCOM_MIN(length, strLength - startPos);

  SetDataFlags(F_NONE);
}

void
nsTDependentSubstring_CharT::Rebind(const char_type* data, size_type length)
{
  NS_ASSERTION(data, "nsTDependentSubstring must wrap a non-NULL buffer");

  // If we currently own a buffer, release it.
  Finalize();

  mData = const_cast<char_type*>(static_cast<const char_type*>(data));
  mLength = length;
  SetDataFlags(F_NONE);
}