simonpj 2005/05/23 03:17:23 PDT
Modified files:
ghc/compiler/prelude PrelNames.lhs
Log:
Fix what "standard class" means
MERGE to STABLE
The Report's definition of defaulting (Section 4.3.4) defines a "standard
class" to be
one defined by the Prelude or a standard library. GHC was omitting the "..or
a standard
library" part; and it even omitted the Prelude classes Monad and Functor.
This commit fixes the bug by adding
Random, RandomGen,
Monad, MonadPlus, Functor
to the classes defined as "standard".
Revision Changes Path
1.98 +25 -6 fptools/ghc/compiler/prelude/PrelNames.lhs
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