Song Zhang

DefaultSignatures extension can be used to make Monoid default

1

``` {-# LANGUAGE DefaultSignatures #-} import Data.Monoid class Default a where def :: a default def :: Monoid a => a def = mempty ```

prettyprint ClassFile, MethodDef data type

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I am playing codec-jvm recently, I added a pretty print package for it. See https://github.com/HaskellZhangSong/codec-jvm-pretty

Support types in Foreign module

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support pretty print for the types in `Foreign.C.Types, Foreign.Ptr, Foreign.C.String`.

Add monadic query functions

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This commit adds following monadic query functions in issue #35: ``` everythingButM :: forall m r. Monad m => (r -> r -> r) -> GenericQ (m (r, Bool)) ->...

I find `everywhere` supports the monadic functions very well while `everything` does not. The query sometimes cannot avoid monadic effects as I recently use syb with template-haskell `Q Monad`. I...

Provide pretty print function for all types in AST

1

Provide pretty print function for all types in AST