mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-26 02:02:33 +00:00
125 lines
4.8 KiB
Plaintext
125 lines
4.8 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* ***** 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 XPCOM Array interface.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corp.
|
|
* Portions created by the Initial Developer are Copyright (C) 2002
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Alec Flett <alecf@netscape.com>
|
|
*
|
|
* 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 ***** */
|
|
|
|
#include "nsISupports.idl"
|
|
|
|
interface nsISimpleEnumerator;
|
|
|
|
/**
|
|
* nsIArray
|
|
*
|
|
* An indexed collection of elements. Provides basic functionality for
|
|
* retrieving elements at a specific position, searching for
|
|
* elements. Indexes are zero-based, such that the last element in the
|
|
* array is stored at the index length-1.
|
|
*
|
|
* For an array which can be modified, see nsIMutableArray below.
|
|
*
|
|
* Neither interface makes any attempt to protect the individual
|
|
* elements from modification. The convention is that the elements of
|
|
* the array should not be modified. Documentation within a specific
|
|
* interface should describe variations from this convention.
|
|
*
|
|
* It is also convention that if an interface provides access to an
|
|
* nsIArray, that the array should not be QueryInterfaced to an
|
|
* nsIMutableArray for modification. If the interface in question had
|
|
* intended the array to be modified, it would have returned an
|
|
* nsIMutableArray!
|
|
*
|
|
* null is a valid entry in the array, and as such any nsISupports
|
|
* parameters may be null, except where noted.
|
|
*/
|
|
[scriptable, uuid(114744d9-c369-456e-b55a-52fe52880d2d)]
|
|
interface nsIArray : nsISupports
|
|
{
|
|
/**
|
|
* length
|
|
*
|
|
* number of elements in the array.
|
|
*/
|
|
readonly attribute unsigned long length;
|
|
|
|
/**
|
|
* queryElementAt()
|
|
*
|
|
* Retrieve a specific element of the array, and QueryInterface it
|
|
* to the specified interface. null is a valid result for
|
|
* this method, but exceptions are thrown in other circumstances
|
|
*
|
|
* @param index position of element
|
|
* @param uuid the IID of the requested interface
|
|
* @param result the object, QI'd to the requested interface
|
|
*
|
|
* @throws NS_ERROR_NO_INTERFACE when an entry exists at the
|
|
* specified index, but the requested interface is not
|
|
* available.
|
|
* @throws NS_ERROR_ILLEGAL_VALUE when index > length-1
|
|
*
|
|
*/
|
|
void queryElementAt(in unsigned long index,
|
|
in nsIIDRef uuid,
|
|
[iid_is(uuid), retval] out nsQIResult result);
|
|
|
|
/**
|
|
* indexOf()
|
|
*
|
|
* Get the position of a specific element. Note that since null is
|
|
* a valid input, exceptions are used to indicate that an element
|
|
* is not found.
|
|
*
|
|
* @param startIndex The initial element to search in the array
|
|
* To start at the beginning, use 0 as the
|
|
* startIndex
|
|
* @param element The element you are looking for
|
|
* @returns a number >= startIndex which is the position of the
|
|
* element in the array.
|
|
* @throws NS_ERROR_NOT_FOUND if the element was not in the array.
|
|
*/
|
|
unsigned long indexOf(in unsigned long startIndex,
|
|
in nsISupports element);
|
|
|
|
/**
|
|
* enumerate the array
|
|
*
|
|
* @returns a new enumerator positioned at the start of the array
|
|
* @throws NS_ERROR_FAILURE if the array is empty (to make it easy
|
|
* to detect errors)
|
|
*/
|
|
nsISimpleEnumerator enumerate();
|
|
};
|