private WebAssetItem CreateItem(string source)
{
Guard.IsNotNullOrEmpty(source, "source");
if (source.IndexOf("://") < 0)
{
source = source.StartsWith("~/", StringComparison.OrdinalIgnoreCase) ? source : PathHelper.CombinePath(assetItemGroup.DefaultPath, source);
}
return new WebAssetItem(source);
}