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Diffstat (limited to '')
| -rw-r--r-- | src/libs/xpcom18a4/xpcom/string/public/nsTObsoleteAString.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsTObsoleteAString.h b/src/libs/xpcom18a4/xpcom/string/public/nsTObsoleteAString.h new file mode 100644 index 00000000..82d5f56c --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/string/public/nsTObsoleteAString.h @@ -0,0 +1,165 @@ +/* -*- 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; |