C++ Istream::lineNumber方法代码示例

void Foam::primitiveEntry::readEntry(const dictionary& dict, Istream& is)
{
    label keywordLineNumber = is.lineNumber();
    tokenIndex() = 0;

    if (read(dict, is))
    {
        setSize(tokenIndex());
        tokenIndex() = 0;
    }
    else
    {
        std::ostringstream os;
        os  << "ill defined primitiveEntry starting at keyword '"
            << keyword() << '\''
            << " on line " << keywordLineNumber
            << " and ending at line " << is.lineNumber();

        SafeFatalIOErrorIn
        (
            "primitiveEntry::readEntry(const dictionary&, Istream&)",
            is,
            os.str()
        );
    }
}

bool Foam::functionEntries::codeStream::execute
(
    const dictionary& parentDict,
    primitiveEntry& entry,
    Istream& is
)
{
    Info<< "Using #codeStream at line " << is.lineNumber()
        << " in file " <<  parentDict.name() << endl;

    dynamicCode::checkSecurity
    (
        "functionEntries::codeStream::execute(..)",
        parentDict
    );

    // get code dictionary
    // must reference parent for stringOps::expand to work nicely
    dictionary codeDict("#codeStream", parentDict, is);

    streamingFunctionType function = getFunction(parentDict, codeDict);

    // use function to write stream
    OStringStream os(is.format());
    (*function)(os, parentDict);

    // get the entry from this stream
    IStringStream resultStream(os.str());
    entry.read(parentDict, resultStream);


    return true;
}

void Foam::functionEntries::ifeqEntry::skipUntil
(
    DynamicList<filePos>& stack,
    const dictionary& parentDict,
    const word& endWord,
    Istream& is
)
{
    while (!is.eof())
    {
        token t;
        readToken(t, is);
        if (t.isWord())
        {
            if (t.wordToken() == "#if" || t.wordToken() == "#ifeq")
            {
                stack.append(filePos(is.name(), is.lineNumber()));
                skipUntil(stack, parentDict, "#endif", is);
                stack.remove();
            }
            else if (t.wordToken() == endWord)
            {
                return;
            }
        }
    }

    FatalIOErrorInFunction(parentDict)
        << "Did not find matching " << endWord << exit(FatalIOError);
}

bool Foam::functionEntry::execute
(
    const word& functionName,
    const dictionary& parentDict,
    primitiveEntry& entry,
    Istream& is
)
{
    is.fatalCheck
    (
        "functionEntry::execute"
        "(const word&, const dictionary&, primitiveEntry&, Istream&)"
    );

    if (!executeprimitiveEntryIstreamMemberFunctionTablePtr_)
    {
        cerr<<"functionEntry::execute"
            << "(const word&, const dictionary&, primitiveEntry&, Istream&)"
            << " not yet initialized, function = "
            << functionName.c_str() << std::endl;

        // return true to keep reading anyhow
        return true;
    }

    executeprimitiveEntryIstreamMemberFunctionTable::iterator mfIter =
        executeprimitiveEntryIstreamMemberFunctionTablePtr_->find(functionName);

    if (mfIter == executeprimitiveEntryIstreamMemberFunctionTablePtr_->end())
    {
        FatalErrorIn
        (
            "functionEntry::execute"
            "(const word&, const dictionary&, primitiveEntry&, Istream&)"
        )   << "Unknown functionEntry '" << functionName
            << "' in " << is.name() << " near line " << is.lineNumber()
            << endl << endl
            << "Valid functionEntries are :" << endl
            << executeprimitiveEntryIstreamMemberFunctionTablePtr_->toc()
            << exit(FatalError);
    }

    return mfIter()(parentDict, entry, is);
}

bool Foam::functionEntries::ifeqEntry::execute
(
    DynamicList<filePos>& stack,
    dictionary& parentDict,
    Istream& is
)
{
    const label nNested = stack.size();

    stack.append(filePos(is.name(), is.lineNumber()));

    // Read first token and expand any string
    token cond1(is);
    cond1 = expand(parentDict, cond1);

    // Read second token and expand any string
    token cond2(is);
    cond2 = expand(parentDict, cond2);

    const bool equal = equalToken(cond1, cond2);

    // Info<< "Using #" << typeName << " " << cond1
    //     << " == " << cond2
    //     << " at line " << stack.last().second()
    //     << " in file " <<  stack.last().first() << endl;

    bool ok = ifeqEntry::execute(equal, stack, parentDict, is);

    if (stack.size() != nNested)
    {
        FatalIOErrorInFunction(parentDict)
            << "Did not find matching #endif for condition starting"
            << " at line " << stack.last().second()
            << " in file " <<  stack.last().first() << exit(FatalIOError);
    }

    return ok;
}

bool Foam::IOobject::readHeader(Istream& is)
{
    if (IOobject::debug)
    {
        Info<< "IOobject::readHeader(Istream&) : reading header for file "
            << is.name() << endl;
    }

    // Check Istream not already bad
    if (!is.good())
    {
        if (rOpt_ == MUST_READ || rOpt_ == MUST_READ_IF_MODIFIED)
        {
            FatalIOErrorIn("IOobject::readHeader(Istream&)", is)
                << " stream not open for reading essential object from file "
                << is.name()
                << exit(FatalIOError);
        }

        if (IOobject::debug)
        {
            SeriousIOErrorIn("IOobject::readHeader(Istream&)", is)
                << " stream not open for reading from file "
                << is.name() << endl;
        }

        return false;
    }

    token firstToken(is);

    if
    (
        is.good()
     && firstToken.isWord()
     && firstToken.wordToken() == "FoamFile"
    )
    {
        dictionary headerDict(is);

        is.version(headerDict.lookup("version"));
        is.format(headerDict.lookup("format"));
        headerClassName_ = word(headerDict.lookup("class"));

        const word headerObject(headerDict.lookup("object"));
        if (IOobject::debug && headerObject != name())
        {
            IOWarningIn("IOobject::readHeader(Istream&)", is)
                << " object renamed from "
                << name() << " to " << headerObject
                << " for file " << is.name() << endl;
        }

        // The note entry is optional
        headerDict.readIfPresent("note", note_);
    }
    else
    {
        SeriousIOErrorIn("IOobject::readHeader(Istream&)", is)
            << "First token could not be read or is not the keyword 'FoamFile'"
            << nl << nl << "Check header is of the form:" << nl << endl;

        writeHeader(Info);

        return false;
    }

    // Check stream is still OK
    if (is.good())
    {
        objState_ = GOOD;
    }
    else
    {
        if (rOpt_ == MUST_READ || rOpt_ == MUST_READ_IF_MODIFIED)
        {
            FatalIOErrorIn("IOobject::readHeader(Istream&)", is)
                << " stream failure while reading header"
                << " on line " << is.lineNumber()
                << " of file " << is.name()
                << " for essential object" << name()
                << exit(FatalIOError);
        }

        if (IOobject::debug)
        {
            Info<< "IOobject::readHeader(Istream&) :"
                << " stream failure while reading header"
                << " on line " << is.lineNumber()
                << " of file " << is.name() << endl;
        }

        objState_ = BAD;

        return false;
    }

    if (IOobject::debug)
    {
        Info<< " .... read" << endl;
//.........这里部分代码省略.........