reflect: ArrayOrSliceType is implemented by many other types too. #1530
Description
This just bit me. I had assumed (without looking into it too much) that
if you do,
if x, ok := x.(reflect.ArrayOrSliceType); ok {
}
then the type of x would be one of *reflect.ArrayType or *reflect.SliceType
within the body of the if.
This is not the case. The interface is also implemented by
*MapType, *PtrType and *ChanType.
Perhaps it might be worth considering making the interface
a little more exclusive to help in avoiding this pitfall.