// Token: 0x060021AE RID: 8622 RVA: 0x000A7C3C File Offset: 0x000A5E3C
        internal DefAttributeData IsMarkupExtensionDefAttribute(Type declaringType, ref string attrValue, int lineNumber, int linePosition, int depth)
        {
            string typename;
            string args;

            if (!MarkupExtensionParser.GetMarkupExtensionTypeAndArgs(ref attrValue, out typename, out args))
            {
                return(null);
            }
            return(this.FillDefAttributeData(declaringType, typename, args, attrValue, lineNumber, linePosition, depth));
        }