I've just noticed that there is no GHC language extension for annotations
http://www.haskell.org/ghc/docs/latest/html/users_guide/extending-ghc.html#annotation-pragmas
That feels like an oversight. Yes, they are in a pragma, but you may get an
error message if you compile with a stage-1 compiler, for example. Plus, the
language extensions should truthfully report what extra stuff you are using.
I'm inclined to add a language extension "Annotations".
* Without it {-# ANN ... #-} pragmas are ignored as comments
* With it, they are treated as annotations
Do you agree?
I don't know whether this can (or even should) land in 7.8.1. Do you care
either way?
Guidance welcome
Simon
Microsoft Research Limited (company number 03369488) is registered in England
and Wales
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