PtrListIO.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM 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 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM 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 OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
\*---------------------------------------------------------------------------*/
 
#include "PtrList.H"
#include "SLList.H"
#include "Istream.H"
#include "Ostream.H"
#include "INew.H"
 
// * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * * //
 
template<class T>
template<class INew>
void Foam::PtrList<T>::read(Istream& is, const INew& inewt)
{
    is.fatalCheck("PtrList<T>::read(Istream&, const INew&)");
 
    token firstToken(is);
 
    is.fatalCheck
    (
        "PtrList<T>::read(Istream&, const INew&) : "
        "reading first token"
    );
 
    if (firstToken.isLabel())
    {
        // Read size of list
        label s = firstToken.labelToken();
 
        setSize(s);
 
        // Read beginning of contents
        char delimiter = is.readBeginList("PtrList");
 
        if (s)
        {
            if (delimiter == token::BEGIN_LIST)
            {
                forAll(*this, i)
                {
                    set(i, inewt(is));
 
                    is.fatalCheck
                    (
                        "PtrList<T>::read(Istream&, const INew&) : "
                        "reading entry"
                    );
                }
            }
            else
            {
                T* tPtr = inewt(is).ptr();
                set(0, tPtr);
 
                is.fatalCheck
                (
                    "PtrList<T>::read(Istream&, const INew&) : "
                    "reading the single entry"
                );
 
                for (label i=1; i<s; i++)
                {
                    set(i, tPtr->clone());
                }
            }
        }
 
        // Read end of contents
        is.readEndList("PtrList");
    }
    else if (firstToken.isPunctuation())
    {
        if (firstToken.pToken() != token::BEGIN_LIST)
        {
            FatalIOErrorInFunction
            (
                is
            )   << "incorrect first token, '(', found " << firstToken.info()
                << exit(FatalIOError);
        }
 
        SLList<T*> sllPtrs;
 
        token lastToken(is);
        while
        (
           !(
                lastToken.isPunctuation()
             && lastToken.pToken() == token::END_LIST
            )
        )
        {
            is.putBack(lastToken);
 
            if (is.eof())
            {
                FatalIOErrorInFunction
                (
                    is
                )   << "Premature EOF after reading " << lastToken.info()
                    << exit(FatalIOError);
            }
 
            sllPtrs.append(inewt(is).ptr());
            is >> lastToken;
        }
 
        setSize(sllPtrs.size());
 
        label i = 0;
        for
        (
            typename SLList<T*>::iterator iter = sllPtrs.begin();
            iter != sllPtrs.end();
            ++iter
        )
        {
            set(i++, iter());
        }
    }
    else
    {
        FatalIOErrorInFunction
        (
            is
        )   << "incorrect first token, expected <int> or '(', found "
            << firstToken.info()
            << exit(FatalIOError);
    }
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class T>
template<class INew>
Foam::PtrList<T>::PtrList(Istream& is, const INew& inewt)
{
    read(is, inewt);
}
 
 
template<class T>
Foam::PtrList<T>::PtrList(Istream& is)
{
    read(is, INew<T>());
}
 
 
// * * * * * * * * * * * * * * * Istream Operator  * * * * * * * * * * * * * //
 
template<class T>
Foam::Istream& Foam::operator>>(Istream& is, PtrList<T>& L)
{
    L.clear();
    L.read(is, INew<T>());
 
    return is;
}
 
 
// * * * * * * * * * * * * * * * Ostream Operators * * * * * * * * * * * * * //
 
template<class T>
Foam::Ostream& Foam::operator<<(Ostream& os, const PtrList<T>& L)
{
    // Write size and start delimiter
    os << nl << L.size() << nl << token::BEGIN_LIST;
 
    // Write contents
    forAll(L, i)
    {
        os << nl << L[i];
    }
 
    // Write end delimiter
    os << nl << token::END_LIST << nl;
 
    // Check state of IOstream
    os.check("Ostream& operator<<(Ostream&, const PtrList&)");
 
    return os;
}
 
 
// ************************************************************************* //