A library for reading Java class-files.

jvm-binary

A library for reading and writing Java class-files. To get started importing the Language.JVM file should be sufficient for most uses.

If you want to access Code elements of methods it is recommended to import Language.JVM.Attribute.Code qualified, like this:

import           Language.JVM
import qualified Language.JVM.Attribute.Code as Code

import qualified Data.ByteString.Lazy as BL

main :: IO ()
main = 
  ecfl <- readClassFile <$> BL.readFile "test/data/project/Main.class" 
  case ecfl of 
    Right clf -> do
      print (cThisClass clf)
      print (cSuperClass clf)
    Left msg -> 
      print msg

Stages

There are two stages in the current state of the repository. Low is closer to the class-file, while the High stage is easier to work with. The reason that we have the two stages is that the class-file representation has indices into the Constant Pool. The High stage eliminates all these problems.

Todo's

• Add more Attributes as to the docs.
• Add documentation for Code
• Setup regular benchmarks

Developing

Use stack to build, test, and benchmark.