author Brian Hackett <>
Wed, 14 Nov 2018 16:09:58 -1000
changeset 446931 1c7fc8389e012c987347efefca6b35f3948b742a
parent 360449 cc599cd5dd8342e7469b19e5ed9898751dfad562
child 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1507359 Part 2 - Bindings and internal changes to allow ReplayDebugger to control child pausing/resuming, r=mccr8.

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
// vim:cindent:ts=8:et:sw=4:
/* 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 */

/* a set of ranges on a number-line */

#ifndef nsIntervalSet_h___
#define nsIntervalSet_h___

#include "nsCoord.h"

class nsIPresShell;

 * A list-based class (hopefully tree-based when I get around to it)
 * for representing a set of ranges on a number-line.
class nsIntervalSet {


    typedef nscoord coord_type;

    explicit nsIntervalSet(nsIPresShell* aPresShell);

     * Include the interval [aBegin, aEnd] in the set.
     * Removal of intervals added is not supported because that would
     * require keeping track of the individual intervals that were
     * added (nsIntervalMap should do that).  It would be simple to
     * implement ExcludeInterval if anyone wants it, though.
    void IncludeInterval(coord_type aBegin, coord_type aEnd);

     * Are _some_ points in [aBegin, aEnd] contained within the set
     * of intervals?
    bool Intersects(coord_type aBegin, coord_type aEnd) const;

     * Are _all_ points in [aBegin, aEnd] contained within the set
     * of intervals?
    bool Contains(coord_type aBegin, coord_type aEnd) const;

    bool IsEmpty() const
        return !mList;


    class Interval {

        Interval(coord_type aBegin, coord_type aEnd)
            : mBegin(aBegin),

        coord_type mBegin;
        coord_type mEnd;
        Interval *mPrev;
        Interval *mNext;

    void* AllocateInterval();
    void FreeInterval(Interval *aInterval);

    Interval           *mList;
    nsIPresShell       *mPresShell;

#endif // !defined(nsIntervalSet_h___)