C++ DEFINE_STATIC_LOCAL函数代码示例

static WTF::RefCountedLeakCounter& cachedFrameCounter()
{
    DEFINE_STATIC_LOCAL(WTF::RefCountedLeakCounter, counter, ("CachedFrame"));
    return counter;
}

const Cursor& rowResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::RowResize));
    return c;
}

const Cursor& northWestPanningCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthWestPanning));
    return c;
}

const Cursor& southWestResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthWestResize));
    return c;
}

const Cursor& northWestSouthEastResizeCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthWestSouthEastResize));
    return c;
}

const Cursor& notAllowedCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NotAllowed));
    return c;
}

const Cursor& waitCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Wait));
    return c;
}

const Cursor& handCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Hand));
    return c;
}

const Cursor& moveCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Move));
    return c;
}

const Cursor& pointerCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Pointer));
    return c;
}

const Cursor& crossCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Cross));
    return c;
}

// We aim to match IE here.
// -IE uses a font based on the encoding as the default font for form controls.
// -Gecko uses MS Shell Dlg (actually calls GetStockObject(DEFAULT_GUI_FONT),
// which returns MS Shell Dlg)
// -Safari uses Lucida Grande.
//
// FIXME: The only case where we know we don't match IE is for ANSI encodings.
// IE uses MS Shell Dlg there, which we render incorrectly at certain pixel
// sizes (e.g. 15px). So, for now we just use Arial.
const String& RenderThemeChromiumSkia::defaultGUIFont()
{
    DEFINE_STATIC_LOCAL(String, fontFace, ("Arial"));
    return fontFace;
}

const String& Animation::initialAnimationName()
{
    DEFINE_STATIC_LOCAL(String, initialValue, (ASCIILiteral("none")));
    return initialValue;
}

const Cursor& progressCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Progress));
    return c;
}

const Cursor& verticalTextCursor()
{
    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::VerticalText));
    return c;
}