File: list.cpp

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/*************************************************************************************
 *  Copyright (C) 2009 by Aleix Pol <aleixpol@kde.org>                               *
 *                                                                                   *
 *  This program is free software; you can redistribute it and/or                    *
 *  modify it under the terms of the GNU General Public License                      *
 *  as published by the Free Software Foundation; either version 2                   *
 *  of the License, or (at your option) any later version.                           *
 *                                                                                   *
 *  This program is distributed in the hope that it will be useful,                  *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of                   *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                    *
 *  GNU General Public License for more details.                                     *
 *                                                                                   *
 *  You should have received a copy of the GNU General Public License                *
 *  along with this program; if not, write to the Free Software                      *
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA   *
 *************************************************************************************/

#include "list.h"
#include "expression.h"
#include "abstractexpressionvisitor.h"
#include "analitzautils.h"

using namespace Analitza;

List::List(const List& v)
    : Object(Object::list)
{
    foreach(const Object* o, v.m_elements)
    {
        m_elements.append(o->copy());
    }
}

List::List()
    : Object(Object::list)
{}

List::~List()
{
    qDeleteAll(m_elements);
}

List* List::copy() const
{
    List *v=new List;
    foreach(const Object* o, m_elements)
        v->m_elements.append(o->copy());
    
    return v;
}

void List::appendBranch(Object* o)
{
    Q_ASSERT(o);
    m_elements.append(o);
}

QVariant List::accept(AbstractExpressionVisitor* e) const
{
    return e->visit(this);
}

bool List::isZero() const
{
    return m_elements.isEmpty();
}

bool List::matches(const Object* exp, QMap< QString, const Object* >* found) const
{
    if(Object::vector!=exp->type())
        return false;
    const List* c=(const List*) exp;
    if(m_elements.count()!=c->m_elements.count())
        return false;
    
    bool matching=true;
    List::const_iterator it, it2, itEnd=m_elements.constEnd();
    for(it=m_elements.constBegin(), it2=c->m_elements.constBegin(); matching && it!=itEnd; ++it, ++it2)
    {
        matching &= (*it)->matches(*it2, found);
    }
    return matching;
}

bool List::operator==(const List& v) const
{
    bool eq=v.size()==size();
    
    for(int i=0; eq && i<m_elements.count(); ++i) {
        eq = eq && AnalitzaUtils::equalTree(m_elements[i], v.m_elements[i]);
    }
    return eq;
}