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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* nsISupportsIterators.idl --- IDL defining general purpose iterators */
#include "nsISupports.idl"
/*
...
*/
/**
* ...
*/
[scriptable, uuid(7330650e-1dd2-11b2-a0c2-9ff86ee97bed)]
interface nsIOutputIterator : nsISupports
{
/**
* Put |anElementToPut| into the underlying container or sequence at the position currently pointed to by this iterator.
* The iterator and the underlying container or sequence cooperate to |Release()|
* the replaced element, if any and if necessary, and to |AddRef()| the new element.
*
* The result is undefined if this iterator currently points outside the
* useful range of the underlying container or sequence.
*
* @param anElementToPut the element to place into the underlying container or sequence
*/
void putElement( in nsISupports anElementToPut );
/**
* Advance this iterator to the next position in the underlying container or sequence.
*/
void stepForward();
};
/**
* ...
*/
[scriptable, uuid(85585e12-1dd2-11b2-a930-f6929058269a)]
interface nsIInputIterator : nsISupports
{
/**
* Retrieve (and |AddRef()|) the element this iterator currently points to.
*
* The result is undefined if this iterator currently points outside the
* useful range of the underlying container or sequence.
*
* @result a new reference to the element this iterator currently points to (if any)
*/
nsISupports getElement();
/**
* Advance this iterator to the next position in the underlying container or sequence.
*/
void stepForward();
/**
* Test if |anotherIterator| points to the same position in the underlying container or sequence.
*
* The result is undefined if |anotherIterator| was not created by or for the same underlying container or sequence.
*
* @param anotherIterator another iterator to compare against, created by or for the same underlying container or sequence
* @result true if |anotherIterator| points to the same position in the underlying container or sequence
*/
boolean isEqualTo( in nsISupports anotherIterator );
/**
* Create a new iterator pointing to the same position in the underlying container or sequence to which this iterator currently points.
* The returned iterator is suitable for use in a subsequent call to |isEqualTo()| against this iterator.
*
* @result a new iterator pointing at the same position in the same underlying container or sequence as this iterator
*/
nsISupports clone();
};
/**
* ...
*/
[scriptable, uuid(8da01646-1dd2-11b2-98a7-c7009045be7e)]
interface nsIForwardIterator : nsISupports
{
/**
* Retrieve (and |AddRef()|) the element this iterator currently points to.
*
* The result is undefined if this iterator currently points outside the
* useful range of the underlying container or sequence.
*
* @result a new reference to the element this iterator currently points to (if any)
*/
nsISupports getElement();
/**
* Put |anElementToPut| into the underlying container or sequence at the position currently pointed to by this iterator.
* The iterator and the underlying container or sequence cooperate to |Release()|
* the replaced element, if any and if necessary, and to |AddRef()| the new element.
*
* The result is undefined if this iterator currently points outside the
* useful range of the underlying container or sequence.
*
* @param anElementToPut the element to place into the underlying container or sequence
*/
void putElement( in nsISupports anElementToPut );
/**
* Advance this iterator to the next position in the underlying container or sequence.
*/
void stepForward();
/**
* Test if |anotherIterator| points to the same position in the underlying container or sequence.
*
* The result is undefined if |anotherIterator| was not created by or for the same underlying container or sequence.
*
* @param anotherIterator another iterator to compare against, created by or for the same underlying container or sequence
* @result true if |anotherIterator| points to the same position in the underlying container or sequence
*/
boolean isEqualTo( in nsISupports anotherIterator );
/**
* Create a new iterator pointing to the same position in the underlying container or sequence to which this iterator currently points.
* The returned iterator is suitable for use in a subsequent call to |isEqualTo()| against this iterator.
*
* @result a new iterator pointing at the same position in the same underlying container or sequence as this iterator
*/
nsISupports clone();
};
/**
* ...
*/
[scriptable, uuid(948defaa-1dd1-11b2-89f6-8ce81f5ebda9)]
interface nsIBidirectionalIterator : nsISupports
{
/**
* Retrieve (and |AddRef()|) the element this iterator currently points to.
*
* The result is undefined if this iterator currently points outside the
* useful range of the underlying container or sequence.
*
* @result a new reference to the element this iterator currently points to (if any)
*/
nsISupports getElement();
/**
* Put |anElementToPut| into the underlying container or sequence at the position currently pointed to by this iterator.
* The iterator and the underlying container or sequence cooperate to |Release()|
* the replaced element, if any and if necessary, and to |AddRef()| the new element.
*
* The result is undefined if this iterator currently points outside the
* useful range of the underlying container or sequence.
*
* @param anElementToPut the element to place into the underlying container or sequence
*/
void putElement( in nsISupports anElementToPut );
/**
* Advance this iterator to the next position in the underlying container or sequence.
*/
void stepForward();
/**
* Move this iterator to the previous position in the underlying container or sequence.
*/
void stepBackward();
/**
* Test if |anotherIterator| points to the same position in the underlying container or sequence.
*
* The result is undefined if |anotherIterator| was not created by or for the same underlying container or sequence.
*
* @param anotherIterator another iterator to compare against, created by or for the same underlying container or sequence
* @result true if |anotherIterator| points to the same position in the underlying container or sequence
*/
boolean isEqualTo( in nsISupports anotherIterator );
/**
* Create a new iterator pointing to the same position in the underlying container or sequence to which this iterator currently points.
* The returned iterator is suitable for use in a subsequent call to |isEqualTo()| against this iterator.
*
* @result a new iterator pointing at the same position in the same underlying container or sequence as this iterator
*/
nsISupports clone();
};
/**
* ...
*/
[scriptable, uuid(9bd6fdb0-1dd1-11b2-9101-d15375968230)]
interface nsIRandomAccessIterator : nsISupports
{
/**
* Retrieve (and |AddRef()|) the element this iterator currently points to.
*
* The result is undefined if this iterator currently points outside the
* useful range of the underlying container or sequence.
*
* @result a new reference to the element this iterator currently points to (if any)
*/
nsISupports getElement();
/**
* Retrieve (and |AddRef()|) an element at some offset from where this iterator currently points.
* The offset may be negative. |getElementAt(0)| is equivalent to |getElement()|.
*
* The result is undefined if this iterator currently points outside the
* useful range of the underlying container or sequence.
*
* @param anOffset a |0|-based offset from the position to which this iterator currently points
* @result a new reference to the indicated element (if any)
*/
nsISupports getElementAt( in int32_t anOffset );
/**
* Put |anElementToPut| into the underlying container or sequence at the position currently pointed to by this iterator.
* The iterator and the underlying container or sequence cooperate to |Release()|
* the replaced element, if any and if necessary, and to |AddRef()| the new element.
*
* The result is undefined if this iterator currently points outside the
* useful range of the underlying container or sequence.
*
* @param anElementToPut the element to place into the underlying container or sequence
*/
void putElement( in nsISupports anElementToPut );
/**
* Put |anElementToPut| into the underlying container or sequence at the position |anOffset| away from that currently pointed to by this iterator.
* The iterator and the underlying container or sequence cooperate to |Release()|
* the replaced element, if any and if necessary, and to |AddRef()| the new element.
* |putElementAt(0, obj)| is equivalent to |putElement(obj)|.
*
* The result is undefined if this iterator currently points outside the
* useful range of the underlying container or sequence.
*
* @param anOffset a |0|-based offset from the position to which this iterator currently points
* @param anElementToPut the element to place into the underlying container or sequence
*/
void putElementAt( in int32_t anOffset, in nsISupports anElementToPut );
/**
* Advance this iterator to the next position in the underlying container or sequence.
*/
void stepForward();
/**
* Move this iterator by |anOffset| positions in the underlying container or sequence.
* |anOffset| may be negative. |stepForwardBy(1)| is equivalent to |stepForward()|.
* |stepForwardBy(0)| is a no-op.
*
* @param anOffset a |0|-based offset from the position to which this iterator currently points
*/
void stepForwardBy( in int32_t anOffset );
/**
* Move this iterator to the previous position in the underlying container or sequence.
*/
void stepBackward();
/**
* Move this iterator backwards by |anOffset| positions in the underlying container or sequence.
* |anOffset| may be negative. |stepBackwardBy(1)| is equivalent to |stepBackward()|.
* |stepBackwardBy(n)| is equivalent to |stepForwardBy(-n)|. |stepBackwardBy(0)| is a no-op.
*
* @param anOffset a |0|-based offset from the position to which this iterator currently points
*/
void stepBackwardBy( in int32_t anOffset );
/**
* Test if |anotherIterator| points to the same position in the underlying container or sequence.
*
* The result is undefined if |anotherIterator| was not created by or for the same underlying container or sequence.
*
* @param anotherIterator another iterator to compare against, created by or for the same underlying container or sequence
* @result true if |anotherIterator| points to the same position in the underlying container or sequence
*/
boolean isEqualTo( in nsISupports anotherIterator );
/**
* Create a new iterator pointing to the same position in the underlying container or sequence to which this iterator currently points.
* The returned iterator is suitable for use in a subsequent call to |isEqualTo()| against this iterator.
*
* @result a new iterator pointing at the same position in the same underlying container or sequence as this iterator
*/
nsISupports clone();
};
%{C++
%}