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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):
* Scott Collins <scc@mozilla.org> (original author)
* 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 ***** */
/**
* nsTDependentString_CharT
*
* Stores a null-terminated, immutable sequence of characters.
*
* Subclass of nsTString that restricts string value to an immutable
* character sequence. This class does not own its data, so the creator
* of objects of this type must take care to ensure that a
* nsTDependentString continues to reference valid memory for the
* duration of its use.
*/
class nsTDependentString_CharT : public nsTString_CharT
{
public:
typedef nsTDependentString_CharT self_type;
public:
/**
* verify restrictions
*/
void AssertValid()
{
NS_ASSERTION(mData, "nsTDependentString must wrap a non-NULL buffer");
NS_ASSERTION(mLength != size_type(-1), "nsTDependentString has bogus length");
NS_ASSERTION(mData[mLength] == 0, "nsTDependentString must wrap only null-terminated strings");
}
/**
* constructors
*/
nsTDependentString_CharT( const char_type* start, const char_type* end )
: string_type(NS_CONST_CAST(char_type*, start), end - start, F_TERMINATED)
{
AssertValid();
}
nsTDependentString_CharT( const char_type* data, PRUint32 length )
: string_type(NS_CONST_CAST(char_type*, data), length, F_TERMINATED)
{
AssertValid();
}
explicit
nsTDependentString_CharT( const char_type* data )
: string_type(NS_CONST_CAST(char_type*, data), char_traits::length(data), F_TERMINATED)
{
AssertValid();
}
explicit
nsTDependentString_CharT( const substring_type& str )
: string_type(NS_CONST_CAST(char_type*, str.Data()), str.Length(), F_TERMINATED)
{
AssertValid();
}
// XXX are you sure??
// auto-generated copy-constructor OK
// auto-generated copy-assignment operator OK
// auto-generated destructor OK
/**
* allow this class to be bound to a different string...
*/
void Rebind( const char_type* data )
{
mData = NS_CONST_CAST(char_type*, data);
mLength = char_traits::length(data);
SetDataFlags(F_TERMINATED);
AssertValid();
}
void Rebind( const char_type* data, size_type length )
{
mData = NS_CONST_CAST(char_type*, data);
mLength = length;
SetDataFlags(F_TERMINATED);
AssertValid();
}
void Rebind( const char_type* start, const char_type* end )
{
Rebind(start, end - start);
}
private:
// NOT USED
nsTDependentString_CharT( const substring_tuple_type& );
nsTDependentString_CharT( const abstract_string_type& );
};
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