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Diffstat (limited to '')
| -rw-r--r-- | src/libs/xpcom18a4/xpcom/tests/StringFactoringTests/nsStdStringWrapper.h | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/tests/StringFactoringTests/nsStdStringWrapper.h b/src/libs/xpcom18a4/xpcom/tests/StringFactoringTests/nsStdStringWrapper.h new file mode 100644 index 00000000..6e43b528 --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/tests/StringFactoringTests/nsStdStringWrapper.h @@ -0,0 +1,234 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * 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.org code. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Scott Collins <scc@mozilla.org> + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#ifndef nsStdStringWrapper_h___ +#define nsStdStringWrapper_h___ + +#include <string> + +#ifndef nsAString_h___ +#include "nsAString.h" +#endif + + +template <class T> +class nsStringAllocator + : public std::allocator<T> // temporarily + { + // ... + }; + + +template < class CharT, class TraitsT = nsCharTraits<CharT>, class AllocatorT = nsStringAllocator<CharT> > +class basic_nsStdStringWrapper + : public basic_nsAString<CharT> + /* + ... + */ + { + protected: + std::basic_string<CharT, TraitsT, AllocatorT> mRawString; + + typedef std::basic_string<CharT, TraitsT, AllocatorT> basic_string_t; + + using typename basic_string_t::traits_type; + using typename basic_string_t::value_type; + using typename basic_string_t::allocator_type; + using typename basic_string_t::size_type; + using typename basic_string_t::difference_type; + using typename basic_string_t::reference; + using typename basic_string_t::const_reference; + using typename basic_string_t::pointer; + using typename basic_string_t::const_pointer; + using typename basic_string_t::iterator; + using typename basic_string_t::const_iterator; + using typename basic_string_t::reverse_iterator; + using typename basic_string_t::const_reverse_iterator; + + static const size_type npos = size_type(-1); + + protected: + virtual const void* Implementation() const; + + virtual const CharT* GetReadableFragment( nsReadableFragment<CharT>&, nsFragmentRequest, PRUint32 ) const; + virtual CharT* GetWritableFragment( nsWritableFragment<CharT>&, nsFragmentRequest, PRUint32 ); + + public: + basic_nsStdStringWrapper() { } + +#if 0 + explicit + basic_nsStdStringWrapper( const AllocatorT& a = AllocatorT() ) + : mRawString(a) + { + } +#endif + + explicit + basic_nsStdStringWrapper( const basic_nsAString<CharT>& str ) + { + Assign(str); + } + +#if 0 + explicit + basic_nsStdStringWrapper( const basic_string_t& str, size_type pos = 0, size_type n = npos ) + : mRawString(str, pos, n) + { + } + + basic_nsStdStringWrapper( const basic_string_t& str, size_type pos, size_type n, const AllocatorT& a ) + : mRawString(str, pos, n, a) + { + } +#endif + + basic_nsStdStringWrapper( const CharT* s, size_type n, const AllocatorT& a = AllocatorT() ) + : mRawString(s, n, a) + { + } + + explicit + basic_nsStdStringWrapper( const CharT* s, const AllocatorT& a = AllocatorT() ) + : mRawString(s, a) + { + } + +#if 0 + basic_nsStdStringWrapper( size_type n, CharT c, const AllocatorT& a = AllocatorT() ) + : mRawString(n, c, a) + { + } +#endif + + virtual + PRUint32 + Length() const + { + return mRawString.length(); + } + + virtual + void + SetCapacity( PRUint32 aNewCapacity ) + { + mRawString.reserve(aNewCapacity); + } + + virtual + void + SetLength( PRUint32 aNewLength ) + { + mRawString.resize(aNewLength); + } + + protected: + virtual void do_AssignFromReadable( const basic_nsAString<CharT>& ); + + // ... + }; + +NS_DEF_TEMPLATE_STRING_COMPARISON_OPERATORS(basic_nsStdStringWrapper<CharT>, CharT) + + + +template <class CharT, class TraitsT, class AllocatorT> +const void* +basic_nsStdStringWrapper<CharT, TraitsT, AllocatorT>::Implementation() const + { + static const char* implementation = "nsStdStringWrapper"; + return implementation; + } + + +template <class CharT, class TraitsT, class AllocatorT> +const CharT* +basic_nsStdStringWrapper<CharT, TraitsT, AllocatorT>::GetReadableFragment( nsReadableFragment<CharT>& aFragment, nsFragmentRequest aRequest, PRUint32 aOffset ) const + { + switch ( aRequest ) + { + case kFirstFragment: + case kLastFragment: + case kFragmentAt: + aFragment.mEnd = (aFragment.mStart = mRawString.data()) + mRawString.length(); + return aFragment.mStart + aOffset; + + case kPrevFragment: + case kNextFragment: + default: + return 0; + } + } + +template <class CharT, class TraitsT, class AllocatorT> +CharT* +basic_nsStdStringWrapper<CharT, TraitsT, AllocatorT>::GetWritableFragment( nsWritableFragment<CharT>& aFragment, nsFragmentRequest aRequest, PRUint32 aOffset ) + { + switch ( aRequest ) + { + case kFirstFragment: + case kLastFragment: + case kFragmentAt: + aFragment.mEnd = (aFragment.mStart = NS_CONST_CAST(CharT*, mRawString.data())) + mRawString.length(); + return aFragment.mStart + aOffset; + + case kPrevFragment: + case kNextFragment: + default: + return 0; + } + } + +template <class CharT, class TraitsT, class AllocatorT> +void +basic_nsStdStringWrapper<CharT, TraitsT, AllocatorT>::do_AssignFromReadable( const basic_nsAString<CharT>& rhs ) + { + typedef basic_nsStdStringWrapper<CharT, TraitsT, AllocatorT> this_t; + + if ( SameImplementation(*this, rhs) ) + mRawString = NS_STATIC_CAST(this_t, rhs).mRawString; + else + basic_nsAString<CharT>::do_AssignFromReadable(rhs); + } + + +typedef basic_nsStdStringWrapper<PRUnichar> nsStdString; +typedef basic_nsStdStringWrapper<char> nsStdCString; + + +#endif // !defined(nsStdStringWrapper_h___) |