Nothing -> panic "get_Ix_binds"
Just dc | any isUnLiftedType (dataConOrigArgTys dc)
-> pprPanic "Can't derive Ix for a single-constructor type with primitive argument types:" (ppr tycon)
Nothing -> panic "get_Ix_binds"
Just dc | any isUnLiftedType (dataConOrigArgTys dc)
-> pprPanic "Can't derive Ix for a single-constructor type with primitive argument types:" (ppr tycon)