I need to check if a user defined type passed as an argument to a generated function is mutable or immutable (I’m doing a recursive vector of structs → struct of vectors transform, and I only want to split fields that are mutable all the way from the root type). I’m aware DataTypes have a mutable f…

Downsides to depending `mutable` field on `DataType`?

Tamas_Papp August 21, 2019, 11:32am 4

If you have to operate on types, then accessing T.mutable is probably your best option.

But is hard to say more without context, can you make an MWE?