在633ab74中添加它之前，应存在什么替代方法reflect.StructOf？

I have some code that makes use of reflect.StructOf, which will presumably land in go1.7. Little did I know, that this wasn't available until only about 2 weeks ago, and only in current master. How does one create custom structs at runtime prior to this method being added?

There was no way to create a new struct type at runtime prior to the addition of reflect.StructOf.