id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,os,architecture,failure,difficulty,testcase,blockedby,blocking,related
7093,Exception when encountering instance declarations without class name,guest,,"'''Code'''

{{{
instance Bounded b => (a -> b) where
 minBound = const minBound
 maxBound = const maxBound
}}}

GHC 7.4.1 ""crashes"" with an exception if the class name
is missing. 


{{{
*** Exception: compiler/rename/RnSource.lhs:429:14-81: Irrefutable pattern failed for pattern Data.Maybe.Just (inst_tyvars,
                                                        _,
                                                        SrcLoc.L _ cls,
                                                        _)

}}}
",bug,closed,normal,,Compiler (Parser),7.4.1,duplicate,,,Unknown/Multiple,Unknown/Multiple,Compile-time crash,Unknown,,,,