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- /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /* vim:set ts=2 sw=2 sts=2 et cindent: */
- /* ***** 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.
- *
- * The Initial Developer of the Original Code is IBM Corporation.
- * Portions created by IBM Corporation are Copyright (C) 2003
- * IBM Corporation. All Rights Reserved.
- *
- * Contributor(s):
- * Darin Fisher <darin@meer.net>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either 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 ***** */
-
-
- /**
- * nsTObsoleteAString_CharT : binary compatible with old nsAC?String vtable
- *
- * @status FROZEN
- */
- class nsTObsoleteAString_CharT
- {
- public:
- /**
- * This is holds the address of the vtable for the canonical string
- * implementation (i.e., nsTString).
- */
- NS_COM static const void *sCanonicalVTable;
-
- /**
- * An |nsFragmentRequest| is used to tell |GetReadableFragment| and
- * |GetWritableFragment| what to do.
- *
- * @see GetReadableFragment
- */
- enum nsFragmentRequest { kPrevFragment, kFirstFragment, kLastFragment, kNextFragment, kFragmentAt };
-
- /**
- * A |nsReadableFragment| provides |const| access to a contiguous hunk of
- * string of homogenous units, e.g., bytes (|char|). This doesn't mean it
- * represents a flat hunk. It could be a variable length encoding, for
- * instance UTF-8. And the fragment itself need not be zero-terminated.
- *
- * An |nsReadableFragment| is the underlying machinery that lets
- * |nsReadingIterator|s work.
- *
- * @see nsReadingIterator
- * @status FROZEN
- */
- struct nsReadableFragment
- {
- const CharT* mStart;
- const CharT* mEnd;
- const void* mFragmentIdentifier;
-
- nsReadableFragment() : mStart(0), mEnd(0), mFragmentIdentifier(0) {}
- };
-
-
- /**
- * A |nsWritableFragment| provides non-|const| access to a contiguous hunk of
- * string of homogenous units, e.g., bytes (|char|). This doesn't mean it
- * represents a flat hunk. It could be a variable length encoding, for
- * instance UTF-8. And the fragment itself need not be zero-terminated.
- *
- * An |nsWritableFragment| is the underlying machinery that lets
- * |nsWritingIterator|s work.
- *
- * @see nsWritingIterator
- * @status FROZEN
- */
- struct nsWritableFragment
- {
- CharT* mStart;
- CharT* mEnd;
- void* mFragmentIdentifier;
-
- nsWritableFragment() : mStart(0), mEnd(0), mFragmentIdentifier(0) {}
- };
-
- protected:
-
- typedef CharT char_type;
-
- typedef void buffer_handle_type;
- typedef void shared_buffer_handle_type;
- typedef nsReadableFragment const_fragment_type;
- typedef nsWritableFragment fragment_type;
-
- typedef nsTAString_CharT abstract_string_type;
-
- typedef PRUint32 size_type;
- typedef PRUint32 index_type;
-
- protected:
-
- friend class nsTAString_CharT;
- friend class nsTSubstring_CharT;
-
- /** here's the old nsAC?String vtable **/
-
- virtual ~nsTObsoleteAString_CharT() { }
-
- virtual PRUint32 GetImplementationFlags() const = 0;
- virtual const buffer_handle_type* GetFlatBufferHandle() const = 0;
- virtual const buffer_handle_type* GetBufferHandle() const = 0;
- virtual const shared_buffer_handle_type* GetSharedBufferHandle() const = 0;
-
- virtual size_type Length() const = 0;
-
- virtual PRBool IsVoid() const = 0;
- virtual void SetIsVoid( PRBool ) = 0;
-
- virtual void SetCapacity( size_type ) = 0;
- virtual void SetLength( size_type ) = 0;
-
- virtual void Cut( index_type cutStart, size_type cutLength ) = 0;
-
- virtual void do_AssignFromReadable( const abstract_string_type& ) = 0;
- virtual void do_AssignFromElementPtr( const char_type* ) = 0;
- virtual void do_AssignFromElementPtrLength( const char_type*, size_type ) = 0;
- virtual void do_AssignFromElement( char_type ) = 0;
-
- virtual void do_AppendFromReadable( const abstract_string_type& ) = 0;
- virtual void do_AppendFromElementPtr( const char_type* ) = 0;
- virtual void do_AppendFromElementPtrLength( const char_type*, size_type ) = 0;
- virtual void do_AppendFromElement( char_type ) = 0;
-
- virtual void do_InsertFromReadable( const abstract_string_type&, index_type ) = 0;
- virtual void do_InsertFromElementPtr( const char_type*, index_type ) = 0;
- virtual void do_InsertFromElementPtrLength( const char_type*, index_type, size_type ) = 0;
- virtual void do_InsertFromElement( char_type, index_type ) = 0;
-
- virtual void do_ReplaceFromReadable( index_type, size_type, const abstract_string_type& ) = 0;
-
- virtual const char_type* GetReadableFragment( const_fragment_type&, nsFragmentRequest, PRUint32 = 0 ) const = 0;
- virtual char_type* GetWritableFragment( fragment_type&, nsFragmentRequest, PRUint32 = 0 ) = 0;
- };
-
- // forward declare implementation
- class nsTObsoleteAStringThunk_CharT;
-