Re: Compiler plugin for warning suppression

Some questions:
1) treeRangePos says "approximate". Is it possible to make it 
non-approximate?
2) Will this work with Scala IDE? Iirc it only runs up until typer and then 
stops compilation.
3) In general, what about extensibility? If an AnalyzerPlugin and/or 
MacroPlugin plugin wants to check whether there are warnings reported, how 
does it do that?
4) What do you think of per-file and per-project suppressions? 

On Tuesday, April 14, 2015 at 11:46:01 PM UTC+2, Roman Janusz wrote:
>
> Hello,
>
> Recently, inspired by the Towards a Safer Scala 
> <http://confreaks.tv/videos/pnws2014-towards-a-safer-scala> talk from 
> this year's ScalaDays, I wanted to try out the set of scalac options 
> recommended by the speaker:
>
> scalacOptions ++= Seq(
>   "-Xlint",
>   "-Xdeprecation",  
>   "-Xfatal-warnings"
> )
>
> Unfortunately, almost immediately I ran into a show-stopper: Scala has no 
> warning suppression similar to Java's @SuppressWarnings. I googled around 
> and unpleasantly found out that requests for this feature have been 
> rejected. See for example SI-1781 
> <https://issues.scala-lang.org/browse/SI-1781>.
>
> But I realized that writing a compiler plugin which could fill that gap 
> would not be that hard.
>
> So here it is: 
>
> *silencer <https://github.com/ghik/silencer>*It would be nice to have 
> some feedback from you, Scala users, to see if there is any interest in 
> maintaining such plugin. The current proof-of-concept implementation is 
> really simple and small, but uses internal scalac API, so I guess there's 
> no guarantee that it won't break with some new Scala version. That is also 
> why I think some community support would help a lot.
>
> Cheers,
> Roman
>

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