Open daira opened 1 year ago
I think it would be sufficient for this issue to just pass a closure returning a column name to methods like ConstraintSystem::{advice,fixed}_column
. At the moment, circuits tend to manually share columns between gadgets, but once #195 and associated optimizations are implemented, they will not need to do that and so the columns created by {advice,fixed}_column
will be "logical columns".
If we also add namespacing to ConstraintSystem
as suggested by @str4d in #195, then the column names would be scoped to a namespace. This would help to distinguish columns allocated by the same code in different contexts.
If we also add namespacing to ConstraintSystem as suggested by @str4d in https://github.com/zcash/halo2/issues/195, then the column names would be scoped to a namespace. This would help to distinguish columns allocated by the same code in different contexts.
In #705 they're scoped per Region
. I think that PR could probably close this issue too. LMK if it doesen't since I could also implement the missing pieces too so that this issue get's also resolved!
This would already be useful for debugging, but it will become even more important when we support floor planners that can do horizontal optimizations (#195), because at that point it will be infeasibly difficult to keep track of column numbers manually.
It would be logical columns (as used in a particular gadget or region) that are named, rather than global columns.