Is it possible to disable the `controller X can` syntax deprecation warnings?

Questions
1

See title :slight_smile:

Is it possible to disable the controller X can syntax deprecation warnings?

This is just to reduce noise in large projects during updating from 1.18.X → 2.X.

2

Hi @bernhard!

Yes, this warning can be disabled individually (that is, without affecting other warnings). There are two options:

per-file

Add

{-# OPTIONS_GHC -Wno-controller-can #-}

at the top of the file where you want to silence the warning.

project-wide.

Add the following entry to the build-options field of the project’s daml.yaml file to silence this warning for all files in the project. You’ll probably need to reload Daml Studio for the change to take effect there.

build-options:
- --ghc-option=-Wno-controller-can

We should document this, I’ve opened Add docs for toggling `controller can` warning · Issue #14492 · digital-asset/daml · GitHub to track this.

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