gecko-dev/string/public/nsStringTraits.h

77 lines
2.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla.
*
* The Initial Developer of the Original Code is Netscape
* Communications. Portions created by Netscape Communications are
* Copyright (C) 2001 by Netscape Communications. All
* Rights Reserved.
*
* Contributor(s):
* Scott Collins <scc@mozilla.org> (original author)
*/
/* nsStringTraits.h --- declares specialized ``traits'' classes which allow templatized functions and classes to select appropriate non-template types */
#ifndef nsStringTraits_h___
#define nsStringTraits_h___
#ifndef nsStringFwd_h___
#include "nsStringFwd.h"
#endif
#ifndef nscore_h___
#include "nscore.h"
#endif
/**
*
*/
template <class CharT>
struct nsStringTraits
{
typedef nsAString abstract_string_type;
typedef nsAPromiseString abstract_promise_type;
typedef nsAFlatString abstract_flat_type;
typedef const nsDependentString literal_string_type;
};
#if 0
// for lame compilers, put these declarations into the general case
// so we only need to specialize for |char|
NS_SPECIALIZE_TEMPLATE
struct nsStringTraits<PRUnichar>
{
typedef nsAString abstract_string_type;
typedef nsAPromiseString abstract_promise_type;
typedef nsAFlatString abstract_flat_type;
typedef const nsDependentString literal_string_type;
};
#endif
NS_SPECIALIZE_TEMPLATE
struct nsStringTraits<char>
{
typedef nsACString abstract_string_type;
typedef nsAPromiseCString abstract_promise_type;
typedef nsAFlatCString abstract_flat_type;
typedef const nsDependentCString literal_string_type;
};
#endif /* !defined(nsStringTraits_h___) */