286         switch (val.type) {

   286         switch (val.type) {

   287             case HbCss::Value::ExpressionNegative:

   287             case HbCss::Value::ExpressionNegative:

   288                 str.append("-");

   288                 str.append("-");

   289             case HbCss::Value::Expression:

   289             case HbCss::Value::Expression:

   290                 str.append("expr(");

   290                 str.append("expr(");

   292                 str.append(")");

   292                 str.append(")");

   293                 break;

   293                 break;

   294             case HbCss::Value::VariableNegative:

   294             case HbCss::Value::VariableNegative:

   295                 str.append("-");

   295                 str.append("-");

   296             case HbCss::Value::Variable:

   296             case HbCss::Value::Variable:

   297                 str.append("var(");

   297                 str.append("var(");

   299                 str.append(")");

   299                 str.append(")");

   300                 break;

   300                 break;

   301             case HbCss::Value::KnownIdentifier:

   301             case HbCss::Value::KnownIdentifier:

   302                 str.append(val.original);

   302                 str.append(val.original);

   303                 break;

   315                 break;

   304             default:

   316             default:

   305                 str.append(val.variant.toString());

   317                 str.append(val.variant.toString());

   306         }

   318         }

   307     }

   319     }