/*
 *  call-seq:
 *     index_reader.field_infos -> FieldInfos
 *
 *  Get the FieldInfos object for this IndexReader.
 */
static VALUE
frt_ir_field_infos(VALUE self)
{
    IndexReader *ir = (IndexReader *)DATA_PTR(self);
    return frt_get_field_infos(ir->fis);
}