static TextStream& operator<<(TextStream& ts, const RenderSVGShape& shape)
{
    writePositionAndStyle(ts, shape);

    ASSERT(shape.node()->isSVGElement());
    SVGElement* svgElement = toSVGElement(shape.node());
    SVGLengthContext lengthContext(svgElement);

    if (svgElement->hasTagName(SVGNames::rectTag)) {
        SVGRectElement* element = static_cast<SVGRectElement*>(svgElement);
        writeNameValuePair(ts, "x", element->x().value(lengthContext));
        writeNameValuePair(ts, "y", element->y().value(lengthContext));
        writeNameValuePair(ts, "width", element->width().value(lengthContext));
        writeNameValuePair(ts, "height", element->height().value(lengthContext));
    } else if (svgElement->hasTagName(SVGNames::lineTag)) {
        SVGLineElement* element = static_cast<SVGLineElement*>(svgElement);
        writeNameValuePair(ts, "x1", element->x1().value(lengthContext));
        writeNameValuePair(ts, "y1", element->y1().value(lengthContext));
        writeNameValuePair(ts, "x2", element->x2().value(lengthContext));
        writeNameValuePair(ts, "y2", element->y2().value(lengthContext));
    } else if (svgElement->hasTagName(SVGNames::ellipseTag)) {
        SVGEllipseElement* element = static_cast<SVGEllipseElement*>(svgElement);
        writeNameValuePair(ts, "cx", element->cx().value(lengthContext));
        writeNameValuePair(ts, "cy", element->cy().value(lengthContext));
        writeNameValuePair(ts, "rx", element->rx().value(lengthContext));
        writeNameValuePair(ts, "ry", element->ry().value(lengthContext));
    } else if (svgElement->hasTagName(SVGNames::circleTag)) {
        SVGCircleElement* element = static_cast<SVGCircleElement*>(svgElement);
        writeNameValuePair(ts, "cx", element->cx().value(lengthContext));
        writeNameValuePair(ts, "cy", element->cy().value(lengthContext));
        writeNameValuePair(ts, "r", element->r().value(lengthContext));
    } else if (svgElement->hasTagName(SVGNames::polygonTag) || svgElement->hasTagName(SVGNames::polylineTag)) {
        SVGPolyElement* element = static_cast<SVGPolyElement*>(svgElement);
        writeNameAndQuotedValue(ts, "points", element->pointList().valueAsString());
    } else if (svgElement->hasTagName(SVGNames::pathTag)) {
        SVGPathElement* element = toSVGPathElement(svgElement);
        String pathString;
        // FIXME: We should switch to UnalteredParsing here - this will affect the path dumping output of dozens of tests.
        buildStringFromByteStream(element->pathByteStream(), pathString, NormalizedParsing);
        writeNameAndQuotedValue(ts, "data", pathString);
    } else
        ASSERT_NOT_REACHED();
    return ts;
}
static TextStream& operator<<(TextStream& ts, const LayoutSVGShape& shape)
{
    writePositionAndStyle(ts, shape);

    SVGElement* svgElement = shape.element();
    ASSERT(svgElement);
    SVGLengthContext lengthContext(svgElement);

    if (isSVGRectElement(*svgElement)) {
        SVGRectElement& element = toSVGRectElement(*svgElement);
        writeNameValuePair(ts, "x", element.x()->currentValue()->value(lengthContext));
        writeNameValuePair(ts, "y", element.y()->currentValue()->value(lengthContext));
        writeNameValuePair(ts, "width", element.width()->currentValue()->value(lengthContext));
        writeNameValuePair(ts, "height", element.height()->currentValue()->value(lengthContext));
    } else if (isSVGLineElement(*svgElement)) {
        SVGLineElement& element = toSVGLineElement(*svgElement);
        writeNameValuePair(ts, "x1", element.x1()->currentValue()->value(lengthContext));
        writeNameValuePair(ts, "y1", element.y1()->currentValue()->value(lengthContext));
        writeNameValuePair(ts, "x2", element.x2()->currentValue()->value(lengthContext));
        writeNameValuePair(ts, "y2", element.y2()->currentValue()->value(lengthContext));
    } else if (isSVGEllipseElement(*svgElement)) {
        SVGEllipseElement& element = toSVGEllipseElement(*svgElement);
        writeNameValuePair(ts, "cx", element.cx()->currentValue()->value(lengthContext));
        writeNameValuePair(ts, "cy", element.cy()->currentValue()->value(lengthContext));
        writeNameValuePair(ts, "rx", element.rx()->currentValue()->value(lengthContext));
        writeNameValuePair(ts, "ry", element.ry()->currentValue()->value(lengthContext));
    } else if (isSVGCircleElement(*svgElement)) {
        SVGCircleElement& element = toSVGCircleElement(*svgElement);
        writeNameValuePair(ts, "cx", element.cx()->currentValue()->value(lengthContext));
        writeNameValuePair(ts, "cy", element.cy()->currentValue()->value(lengthContext));
        writeNameValuePair(ts, "r", element.r()->currentValue()->value(lengthContext));
    } else if (isSVGPolyElement(*svgElement)) {
        writeNameAndQuotedValue(ts, "points", toSVGPolyElement(*svgElement).points()->currentValue()->valueAsString());
    } else if (isSVGPathElement(*svgElement)) {
        String pathString;
        // FIXME: We should switch to UnalteredParsing here - this will affect the path dumping output of dozens of tests.
        buildStringFromByteStream(*toSVGPathElement(*svgElement).pathByteStream(), pathString, NormalizedParsing);
        writeNameAndQuotedValue(ts, "data", pathString);
    } else {
        ASSERT_NOT_REACHED();
    }
    return ts;
}
static TextStream& operator<<(TextStream& ts, const RenderSVGShape& shape)
{
    writePositionAndStyle(ts, shape);

    SVGGraphicsElement& svgElement = shape.graphicsElement();
    SVGLengthContext lengthContext(&svgElement);

    if (isSVGRectElement(svgElement)) {
        const SVGRectElement& element = toSVGRectElement(svgElement);
        writeNameValuePair(ts, "x", element.x().value(lengthContext));
        writeNameValuePair(ts, "y", element.y().value(lengthContext));
        writeNameValuePair(ts, "width", element.width().value(lengthContext));
        writeNameValuePair(ts, "height", element.height().value(lengthContext));
    } else if (isSVGLineElement(svgElement)) {
        const SVGLineElement& element = toSVGLineElement(svgElement);
        writeNameValuePair(ts, "x1", element.x1().value(lengthContext));
        writeNameValuePair(ts, "y1", element.y1().value(lengthContext));
        writeNameValuePair(ts, "x2", element.x2().value(lengthContext));
        writeNameValuePair(ts, "y2", element.y2().value(lengthContext));
    } else if (isSVGEllipseElement(svgElement)) {
        const SVGEllipseElement& element = toSVGEllipseElement(svgElement);
        writeNameValuePair(ts, "cx", element.cx().value(lengthContext));
        writeNameValuePair(ts, "cy", element.cy().value(lengthContext));
        writeNameValuePair(ts, "rx", element.rx().value(lengthContext));
        writeNameValuePair(ts, "ry", element.ry().value(lengthContext));
    } else if (isSVGCircleElement(svgElement)) {
        const SVGCircleElement& element = toSVGCircleElement(svgElement);
        writeNameValuePair(ts, "cx", element.cx().value(lengthContext));
        writeNameValuePair(ts, "cy", element.cy().value(lengthContext));
        writeNameValuePair(ts, "r", element.r().value(lengthContext));
    } else if (svgElement.hasTagName(SVGNames::polygonTag) || svgElement.hasTagName(SVGNames::polylineTag)) {
        const SVGPolyElement& element = toSVGPolyElement(svgElement);
        writeNameAndQuotedValue(ts, "points", element.pointList().valueAsString());
    } else if (isSVGPathElement(svgElement)) {
        const SVGPathElement& element = toSVGPathElement(svgElement);
        String pathString;
        // FIXME: We should switch to UnalteredParsing here - this will affect the path dumping output of dozens of tests.
        buildStringFromByteStream(element.pathByteStream(), pathString, NormalizedParsing);
        writeNameAndQuotedValue(ts, "data", pathString);
    } else
        ASSERT_NOT_REACHED();
    return ts;
}
String SVGPath::valueAsString() const
{
    String string;
    buildStringFromByteStream(byteStream(), string, UnalteredParsing);
    return string;
}
String SVGPath::valueAsString() const
{
    return buildStringFromByteStream(byteStream());
}