Mention DerivingStrategies in the warning when DeriveAnyClass and GeneralizedNewtypeDeriving are both enabled
When DeriveAnyClass
and GeneralizedNewtypeDeriving
are both enabled, GHC prints out the following warning for every deriving C
:
warning:
• Both DeriveAnyClass and GeneralizedNewtypeDeriving are enabled
Defaulting to the DeriveAnyClass strategy for instantiating C
Would it be useful to point the users to DerivingStrategies
?
Use DerivingStrategies to pick a different strategy
, or something similar? I'm not sure if this was already discussed before, I couldn't find any related tickets.
Trac metadata
Trac field | Value |
---|---|
Version | |
Type | FeatureRequest |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | RyanGlScott |
Operating system | |
Architecture |